1635 lines
383 KiB
HTML
1635 lines
383 KiB
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<a href="integer__search_8cc.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">// Copyright 2010-2021 Google LLC</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment">// you may not use this file except in compliance with the License.</span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment">// You may obtain a copy of the License at</span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment">//</span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment">//</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment">// See the License for the specific language governing permissions and</span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment">// limitations under the License.</span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include "<a class="code" href="integer__search_8h.html">ortools/sat/integer_search.h</a>"</span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include <algorithm></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <cmath></span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include <cstdint></span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include <functional></span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include <random></span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include <vector></span></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include "absl/container/flat_hash_set.h"</span></div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include "absl/strings/str_cat.h"</span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include "absl/time/clock.h"</span></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include "absl/time/time.h"</span></div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include "<a class="code" href="base_2logging_8h.html">ortools/base/logging.h</a>"</span></div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include "<a class="code" href="map__util_8h.html">ortools/base/map_util.h</a>"</span></div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include "ortools/sat/cp_model.pb.h"</span></div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#include "<a class="code" href="cp__model__mapping_8h.html">ortools/sat/cp_model_mapping.h</a>"</span></div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor">#include "<a class="code" href="implied__bounds_8h.html">ortools/sat/implied_bounds.h</a>"</span></div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#include "<a class="code" href="integer_8h.html">ortools/sat/integer.h</a>"</span></div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="preprocessor">#include "<a class="code" href="intervals_8h.html">ortools/sat/intervals.h</a>"</span></div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="preprocessor">#include "<a class="code" href="linear__programming__constraint_8h.html">ortools/sat/linear_programming_constraint.h</a>"</span></div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="preprocessor">#include "<a class="code" href="sat_2model_8h.html">ortools/sat/model.h</a>"</span></div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="preprocessor">#include "<a class="code" href="probing_8h.html">ortools/sat/probing.h</a>"</span></div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="preprocessor">#include "<a class="code" href="pseudo__costs_8h.html">ortools/sat/pseudo_costs.h</a>"</span></div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="preprocessor">#include "<a class="code" href="restart_8h.html">ortools/sat/restart.h</a>"</span></div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="preprocessor">#include "<a class="code" href="rins_8h.html">ortools/sat/rins.h</a>"</span></div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="preprocessor">#include "<a class="code" href="sat__base_8h.html">ortools/sat/sat_base.h</a>"</span></div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="preprocessor">#include "<a class="code" href="sat__decision_8h.html">ortools/sat/sat_decision.h</a>"</span></div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="preprocessor">#include "<a class="code" href="sat__inprocessing_8h.html">ortools/sat/sat_inprocessing.h</a>"</span></div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span><span class="preprocessor">#include "ortools/sat/sat_parameters.pb.h"</span></div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="preprocessor">#include "<a class="code" href="sat__solver_8h.html">ortools/sat/sat_solver.h</a>"</span></div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><span class="preprocessor">#include "<a class="code" href="synchronization_8h.html">ortools/sat/synchronization.h</a>"</span></div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="preprocessor">#include "<a class="code" href="sat_2util_8h.html">ortools/sat/util.h</a>"</span></div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="preprocessor">#include "<a class="code" href="strong__integers_8h.html">ortools/util/strong_integers.h</a>"</span></div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="preprocessor">#include "<a class="code" href="time__limit_8h.html">ortools/util/time_limit.h</a>"</span></div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> </div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceoperations__research.html">operations_research</a> {</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span><span class="keyword">namespace </span>sat {</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> </div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a304417ca7c3964cc928b771620b2dc53"> 53</a></span><a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a304417ca7c3964cc928b771620b2dc53">AtMinValue</a>(IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>* integer_trail) {</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(!integer_trail-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a309d057e12c8d4d393f13975eea2e2a9">IsCurrentlyIgnored</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>));</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keyword">const</span> IntegerValue lb = integer_trail-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9">LowerBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <a class="code hl_define" href="base_2logging_8h.html#a4395e95bab44e222cb2e77251017a0e2">DCHECK_LE</a>(lb, integer_trail-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac">UpperBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>));</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordflow">if</span> (lb == integer_trail-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac">UpperBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>)) <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a>();</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keywordflow">return</span> <a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#a3e2eb445631727dd4abf1d5343f16b2f">IntegerLiteral::LowerOrEqual</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, lb);</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span>}</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a71fa416b44768076a0e7dd7777ab433d"> 61</a></span><a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a71fa416b44768076a0e7dd7777ab433d">ChooseBestObjectiveValue</a>(IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keyword">const</span> <span class="keyword">auto</span>& variables =</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_objective_definition.html">ObjectiveDefinition</a>>()->objective_impacting_variables;</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keyword">auto</span>* integer_trail = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>>();</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keywordflow">if</span> (variables.contains(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>)) {</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a304417ca7c3964cc928b771620b2dc53">AtMinValue</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, integer_trail);</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (variables.contains(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22">NegationOf</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>))) {</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a304417ca7c3964cc928b771620b2dc53">AtMinValue</a>(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22">NegationOf</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>), integer_trail);</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> }</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a>();</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span>}</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> </div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a3f4df9da99787316bfb5029b7a6b92b7"> 73</a></span><a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a3f4df9da99787316bfb5029b7a6b92b7">GreaterOrEqualToMiddleValue</a>(IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>,</div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>* integer_trail) {</div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keyword">const</span> IntegerValue var_lb = integer_trail-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9">LowerBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keyword">const</span> IntegerValue var_ub = integer_trail-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac">UpperBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <a class="code hl_define" href="base_2logging_8h.html#a4bd2e815ca2f702a4b6aa744b1ff3b82">CHECK_LT</a>(var_lb, var_ub);</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> </div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keyword">const</span> IntegerValue chosen_value =</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> var_lb + <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(IntegerValue(1), (var_ub - var_lb) / IntegerValue(2));</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keywordflow">return</span> <a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#a6c233aafac25ea66d69de93a83c9be63">IntegerLiteral::GreaterOrEqual</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, chosen_value);</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span>}</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> </div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a46cb4c07c4971a99724693260c92fd5b"> 84</a></span><a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a46cb4c07c4971a99724693260c92fd5b">SplitAroundGivenValue</a>(IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, IntegerValue <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>,</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keyword">auto</span>* integer_trail = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>>();</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="keyword">const</span> IntegerValue lb = integer_trail-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9">LowerBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="keyword">const</span> IntegerValue ub = integer_trail->UpperBound(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> </div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keyword">const</span> absl::flat_hash_set<IntegerVariable>& variables =</div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_objective_definition.html">ObjectiveDefinition</a>>()->objective_impacting_variables;</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> </div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="comment">// Heuristic: Prefer the objective direction first. Reference: Conflict-Driven</span></div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="comment">// Heuristics for Mixed Integer Programming (2019) by Jakob Witzig and Ambros</span></div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="comment">// Gleixner.</span></div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="comment">// NOTE: The value might be out of bounds. In that case we return</span></div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="comment">// kNoLiteralIndex.</span></div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> branch_down_feasible = <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> >= lb && <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> < ub;</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> branch_up_feasible = <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> > lb && <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> <= ub;</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="keywordflow">if</span> (variables.contains(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) && branch_down_feasible) {</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="keywordflow">return</span> <a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#a3e2eb445631727dd4abf1d5343f16b2f">IntegerLiteral::LowerOrEqual</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (variables.contains(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22">NegationOf</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>)) && branch_up_feasible) {</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keywordflow">return</span> <a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#a6c233aafac25ea66d69de93a83c9be63">IntegerLiteral::GreaterOrEqual</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (branch_down_feasible) {</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="keywordflow">return</span> <a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#a3e2eb445631727dd4abf1d5343f16b2f">IntegerLiteral::LowerOrEqual</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (branch_up_feasible) {</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordflow">return</span> <a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#a6c233aafac25ea66d69de93a83c9be63">IntegerLiteral::GreaterOrEqual</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> }</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a>();</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span>}</div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> </div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#ac0774a1df651b83339b00fee0bde1cd8"> 112</a></span><a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ac0774a1df651b83339b00fee0bde1cd8">SplitAroundLpValue</a>(IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="keyword">auto</span>* <a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a> = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<SatParameters>();</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keyword">auto</span>* integer_trail = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>>();</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keyword">auto</span>* lp_dispatcher = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_programming_dispatcher.html">LinearProgrammingDispatcher</a>>();</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(!integer_trail->IsCurrentlyIgnored(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>));</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> </div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> <span class="keyword">const</span> IntegerVariable positive_var = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a7f1ac774d4646a83631f8117f4ea03f5">PositiveVariable</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_programming_constraint.html">LinearProgrammingConstraint</a>* lp =</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <a class="code hl_function" href="namespacegtl.html#a795ebdb62731938c8c31b221f0f074b4">gtl::FindWithDefault</a>(*lp_dispatcher, positive_var, <span class="keyword">nullptr</span>);</div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> </div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="comment">// We only use this if the sub-lp has a solution, and depending on the value</span></div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="comment">// of exploit_all_lp_solution() if it is a pure-integer solution.</span></div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="keywordflow">if</span> (lp == <span class="keyword">nullptr</span> || !lp-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_programming_constraint.html#ac7edc397b78de116072e89fe0ad89266">HasSolution</a>()) <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a>();</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keywordflow">if</span> (!<a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>->exploit_all_lp_solution() && !lp-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_programming_constraint.html#a700f8f1db38fcb59cab04ff2d75a915f">SolutionIsInteger</a>()) {</div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a>();</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> }</div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> </div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="comment">// TODO(user): Depending if we branch up or down, this might not exclude the</span></div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="comment">// LP value, which is potentially a bad thing.</span></div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="comment">// TODO(user): Why is the reduced cost doing things differently?</span></div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="keyword">const</span> IntegerValue <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = IntegerValue(</div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::round(lp-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_programming_constraint.html#a460fe5216ff7f997841e588d432be744">GetSolutionValue</a>(positive_var))));</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> </div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="comment">// Because our lp solution might be from higher up in the tree, it</span></div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="comment">// is possible that value is now outside the domain of positive_var.</span></div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="comment">// In this case, this function will return an invalid literal.</span></div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a46cb4c07c4971a99724693260c92fd5b">SplitAroundGivenValue</a>(positive_var, <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span>}</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> </div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#ac4a25d47a029efe205efbc015f7c7e7c"> 142</a></span><a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ac4a25d47a029efe205efbc015f7c7e7c">SplitUsingBestSolutionValueInRepository</a>(</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_shared_solution_repository.html">SharedSolutionRepository<int64_t></a>& solution_repo,</div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> <span class="keywordflow">if</span> (solution_repo.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_shared_solution_repository.html#a6d2b6f7951b60c786fdbefcbe7c3571f">NumSolutions</a>() == 0) {</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a>();</div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> }</div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> </div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keyword">const</span> IntegerVariable positive_var = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a7f1ac774d4646a83631f8117f4ea03f5">PositiveVariable</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="keyword">const</span> <span class="keywordtype">int</span> proto_var =</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Get<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_cp_model_mapping.html">CpModelMapping</a>>()->GetProtoVariableFromIntegerVariable(</div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> positive_var);</div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> </div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> <span class="keywordflow">if</span> (proto_var < 0) {</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a>();</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> }</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> </div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <span class="keyword">const</span> IntegerValue <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>(solution_repo.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_shared_solution_repository.html#ad3280cfa83b844b02b9194550b18b058">GetVariableValueInSolution</a>(</div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> proto_var, <span class="comment">/*solution_index=*/</span>0));</div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a46cb4c07c4971a99724693260c92fd5b">SplitAroundGivenValue</a>(positive_var, <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span>}</div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> </div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span><span class="comment">// TODO(user): the complexity caused by the linear scan in this heuristic and</span></div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span><span class="comment">// the one below is ok when search_branching is set to SAT_SEARCH because it is</span></div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span><span class="comment">// not executed often, but otherwise it is done for each search decision,</span></div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span><span class="comment">// which seems expensive. Improve.</span></div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a0b08971dbb223f77e7fc9c41a77fdc7b"> 167</a></span>std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a0b08971dbb223f77e7fc9c41a77fdc7b">FirstUnassignedVarAtItsMinHeuristic</a>(</div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="keyword">const</span> std::vector<IntegerVariable>& vars, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keyword">auto</span>* integer_trail = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>>();</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <span class="keywordflow">return</span> [<span class="comment">/*copy*/</span> vars, integer_trail]() {</div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> : vars) {</div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <span class="comment">// Note that there is no point trying to fix a currently ignored variable.</span></div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> <span class="keywordflow">if</span> (integer_trail->IsCurrentlyIgnored(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>)) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> <span class="keyword">const</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> decision = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a304417ca7c3964cc928b771620b2dc53">AtMinValue</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, integer_trail);</div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="keywordflow">if</span> (decision.<a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#ac532c4b500b1a85ea22217f2c65a70ed">IsValid</a>()) <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>(decision);</div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> }</div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>();</div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> };</div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span>}</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> </div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span>std::function<BooleanOrIntegerLiteral()></div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a4713f8fb7e1ccddece18a374886ad866"> 182</a></span><a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a4713f8fb7e1ccddece18a374886ad866">UnassignedVarWithLowestMinAtItsMinHeuristic</a>(</div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> <span class="keyword">const</span> std::vector<IntegerVariable>& vars, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="keyword">auto</span>* integer_trail = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>>();</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <span class="keywordflow">return</span> [<span class="comment">/*copy */</span> vars, integer_trail]() {</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> IntegerVariable candidate = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06">kNoIntegerVariable</a>;</div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> IntegerValue candidate_lb;</div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> : vars) {</div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> <span class="keywordflow">if</span> (integer_trail->IsCurrentlyIgnored(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>)) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="keyword">const</span> IntegerValue lb = integer_trail->LowerBound(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <span class="keywordflow">if</span> (lb < integer_trail-><a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a9e815eb2193f1bb6903274c7f0859cd7">UpperBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) &&</div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> (candidate == <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06">kNoIntegerVariable</a> || lb < candidate_lb)) {</div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> candidate = <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>;</div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> candidate_lb = lb;</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> }</div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> }</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <span class="keywordflow">if</span> (candidate == <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06">kNoIntegerVariable</a>) <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>();</div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a304417ca7c3964cc928b771620b2dc53">AtMinValue</a>(candidate, integer_trail));</div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> };</div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span>}</div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> </div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a2acd1aef8e418e20032fd893668c04a6"> 202</a></span>std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2acd1aef8e418e20032fd893668c04a6">SequentialSearch</a>(</div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> std::vector<std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()>> heuristics) {</div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="keywordflow">return</span> [heuristics]() {</div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& h : heuristics) {</div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <span class="keyword">const</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a> decision = h();</div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <span class="keywordflow">if</span> (decision.<a class="code hl_function" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#ae26b73bbf70dc88433be39df364ca7c1">HasValue</a>()) <span class="keywordflow">return</span> decision;</div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> }</div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>();</div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> };</div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span>}</div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> </div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a1e222e7822b62559452fb087e852bcf0"> 213</a></span>std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1e222e7822b62559452fb087e852bcf0">SequentialValueSelection</a>(</div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> std::vector<std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a>(IntegerVariable)>></div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> value_selection_heuristics,</div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> var_selection_heuristic,</div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> <span class="keyword">auto</span>* encoder = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_encoder.html">IntegerEncoder</a>>();</div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> <span class="keyword">auto</span>* integer_trail = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>>();</div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <span class="keyword">auto</span>* sat_policy = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_decision_policy.html">SatDecisionPolicy</a>>();</div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> <span class="keywordflow">return</span> [=]() {</div>
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<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> <span class="comment">// Get the current decision.</span></div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> <span class="keyword">const</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a> current_decision = var_selection_heuristic();</div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> <span class="keywordflow">if</span> (!current_decision.<a class="code hl_function" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#ae26b73bbf70dc88433be39df364ca7c1">HasValue</a>()) <span class="keywordflow">return</span> current_decision;</div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> </div>
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> <span class="comment">// When we are in the "stable" phase, we prefer to follow the SAT polarity</span></div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <span class="comment">// heuristic.</span></div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="keywordflow">if</span> (current_decision.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a3c6f3ae96a90c7fcef34dd0f1ce0297e">boolean_literal_index</a> != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a> &&</div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> sat_policy->InStablePhase()) {</div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> <span class="keywordflow">return</span> current_decision;</div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> }</div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> </div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="comment">// IntegerLiteral case.</span></div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> <span class="keywordflow">if</span> (current_decision.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a3c6f3ae96a90c7fcef34dd0f1ce0297e">boolean_literal_index</a> == <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>) {</div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& value_heuristic : value_selection_heuristics) {</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <span class="keyword">const</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> decision =</div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> value_heuristic(current_decision.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#aee356429e37f0750e38ee17ae1464a00">integer_literal</a>.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_integer_literal.html#ab6516f556b715738034b30d290c40214">var</a>);</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <span class="keywordflow">if</span> (decision.<a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#ac532c4b500b1a85ea22217f2c65a70ed">IsValid</a>()) <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>(decision);</div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> }</div>
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="keywordflow">return</span> current_decision;</div>
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<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> }</div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> </div>
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> <span class="comment">// Boolean case. We try to decode the Boolean decision to see if it is</span></div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> <span class="comment">// associated with an integer variable.</span></div>
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<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> l : encoder->GetAllIntegerLiterals(</div>
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<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(current_decision.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a3c6f3ae96a90c7fcef34dd0f1ce0297e">boolean_literal_index</a>))) {</div>
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<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <span class="keywordflow">if</span> (integer_trail->IsCurrentlyIgnored(l.var)) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> </div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <span class="comment">// Sequentially try the value selection heuristics.</span></div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& value_heuristic : value_selection_heuristics) {</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <span class="keyword">const</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> decision = value_heuristic(l.var);</div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> <span class="keywordflow">if</span> (decision.<a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#ac532c4b500b1a85ea22217f2c65a70ed">IsValid</a>()) <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>(decision);</div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> }</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> }</div>
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<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> </div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> <span class="keywordflow">return</span> current_decision;</div>
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> };</div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span>}</div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> </div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#aeaaccdd218e3f0aa5c218d3a0cc5c3f1"> 260</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aeaaccdd218e3f0aa5c218d3a0cc5c3f1">LinearizedPartIsLarge</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> <span class="keyword">auto</span>* lp_constraints =</div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_programming_constraint_collection.html">LinearProgrammingConstraintCollection</a>>();</div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> <span class="keywordtype">int</span> num_lp_variables = 0;</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> <span class="keywordflow">for</span> (<a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_programming_constraint.html">LinearProgrammingConstraint</a>* lp : *lp_constraints) {</div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> num_lp_variables += lp->NumVariables();</div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> }</div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_integer_variables =</div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>>()->NumIntegerVariables().value() / 2;</div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> <span class="keywordflow">return</span> (num_integer_variables <= 2 * num_lp_variables);</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span>}</div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> </div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span><span class="comment">// TODO(user): Experiment more with value selection heuristics.</span></div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a88ab44e20ce09e9942f6b8411452df27"> 273</a></span>std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a88ab44e20ce09e9942f6b8411452df27">IntegerValueSelectionHeuristic</a>(</div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> var_selection_heuristic,</div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> <span class="keyword">const</span> SatParameters& <a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a> = *(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<SatParameters>());</div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> std::vector<std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a>(IntegerVariable)>></div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> value_selection_heuristics;</div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> </div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> <span class="comment">// LP based value.</span></div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> <span class="comment">// Note that we only do this if a big enough percentage of the problem</span></div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> <span class="comment">// variables appear in the LP relaxation.</span></div>
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<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> <span class="keywordflow">if</span> (<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aeaaccdd218e3f0aa5c218d3a0cc5c3f1">LinearizedPartIsLarge</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) &&</div>
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<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> (<a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>.exploit_integer_lp_solution() ||</div>
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<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> <a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>.exploit_all_lp_solution())) {</div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> value_selection_heuristics.push_back([<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>](IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div>
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<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ac0774a1df651b83339b00fee0bde1cd8">SplitAroundLpValue</a>(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a7f1ac774d4646a83631f8117f4ea03f5">PositiveVariable</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>), <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> });</div>
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<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> }</div>
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<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> </div>
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<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> <span class="comment">// Solution based value.</span></div>
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<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>.exploit_best_solution()) {</div>
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<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> <span class="keyword">auto</span>* response_manager = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Get<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_shared_response_manager.html">SharedResponseManager</a>>();</div>
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<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> <span class="keywordflow">if</span> (response_manager != <span class="keyword">nullptr</span>) {</div>
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<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(3) << <span class="stringliteral">"Using best solution value selection heuristic."</span>;</div>
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<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> value_selection_heuristics.push_back(</div>
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<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span> [<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>, response_manager](IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div>
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<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ac4a25d47a029efe205efbc015f7c7e7c">SplitUsingBestSolutionValueInRepository</a>(</div>
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<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, response_manager->SolutionsRepository(), <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> });</div>
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<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> }</div>
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<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> }</div>
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<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> </div>
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<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> <span class="comment">// Relaxation Solution based value.</span></div>
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<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>.exploit_relaxation_solution()) {</div>
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<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> <span class="keyword">auto</span>* <a class="code hl_variable" href="cp__model__solver_8cc.html#a2a2278bd1fb787198e496b7d443a05e8">relaxation_solutions</a> =</div>
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<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Get<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_shared_relaxation_solution_repository.html">SharedRelaxationSolutionRepository</a>>();</div>
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<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="cp__model__solver_8cc.html#a2a2278bd1fb787198e496b7d443a05e8">relaxation_solutions</a> != <span class="keyword">nullptr</span>) {</div>
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<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> value_selection_heuristics.push_back(</div>
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<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> [<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>, <a class="code hl_variable" href="cp__model__solver_8cc.html#a2a2278bd1fb787198e496b7d443a05e8">relaxation_solutions</a>](IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div>
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<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(3) << <span class="stringliteral">"Using relaxation solution value selection heuristic."</span>;</div>
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<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ac4a25d47a029efe205efbc015f7c7e7c">SplitUsingBestSolutionValueInRepository</a>(</div>
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<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, *<a class="code hl_variable" href="cp__model__solver_8cc.html#a2a2278bd1fb787198e496b7d443a05e8">relaxation_solutions</a>, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> });</div>
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<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> }</div>
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<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> }</div>
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<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> </div>
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<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> <span class="comment">// Objective based value.</span></div>
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<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>.exploit_objective()) {</div>
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<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> value_selection_heuristics.push_back([<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>](IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div>
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<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a71fa416b44768076a0e7dd7777ab433d">ChooseBestObjectiveValue</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> });</div>
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<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> }</div>
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<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> </div>
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<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1e222e7822b62559452fb087e852bcf0">SequentialValueSelection</a>(value_selection_heuristics,</div>
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<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> var_selection_heuristic, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span>}</div>
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<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> </div>
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<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a8f18cefafff72d70f6e96ed3f2ef84aa"> 330</a></span>std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a8f18cefafff72d70f6e96ed3f2ef84aa">SatSolverHeuristic</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* sat_solver = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>>();</div>
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<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_trail.html">Trail</a>* trail = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_trail.html">Trail</a>>();</div>
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<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_decision_policy.html">SatDecisionPolicy</a>* decision_policy = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_decision_policy.html">SatDecisionPolicy</a>>();</div>
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<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> <span class="keywordflow">return</span> [sat_solver, trail, decision_policy] {</div>
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<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> all_assigned = trail->Index() == sat_solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a9d3beb2afe4ae647674b054bf29290e2">NumVariables</a>();</div>
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<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> <span class="keywordflow">if</span> (all_assigned) <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>();</div>
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<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a> result = decision_policy->NextBranch();</div>
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<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!sat_solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a4793952607a98dfddfbcc17abfabbb4b">Assignment</a>().<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#a142694366986039454f53b38e8378815">LiteralIsAssigned</a>(result));</div>
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<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>(result.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a4a11c7c4d7706c09de5e18707c3b5c62">Index</a>());</div>
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<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> };</div>
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<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span>}</div>
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<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> </div>
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<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#aefab46ecc02eb059ed853ee0213be7fb"> 343</a></span>std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aefab46ecc02eb059ed853ee0213be7fb">PseudoCost</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> <span class="keyword">auto</span>* objective = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Get<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_objective_definition.html">ObjectiveDefinition</a>>();</div>
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<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> has_objective =</div>
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<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> objective != <span class="keyword">nullptr</span> && objective-><a class="code hl_variable" href="structoperations__research_1_1sat_1_1_objective_definition.html#aa3c0b31567c91babfffd5f9afc3161dc">objective_var</a> != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06">kNoIntegerVariable</a>;</div>
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<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> <span class="keywordflow">if</span> (!has_objective) {</div>
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<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> <span class="keywordflow">return</span> []() { <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>(); };</div>
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<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span> }</div>
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<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> </div>
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<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span> <span class="keyword">auto</span>* pseudo_costs = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_pseudo_costs.html">PseudoCosts</a>>();</div>
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<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> <span class="keyword">auto</span>* integer_trail = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>>();</div>
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<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> <span class="keywordflow">return</span> [pseudo_costs, integer_trail]() {</div>
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<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> <span class="keyword">const</span> IntegerVariable chosen_var = pseudo_costs->GetBestDecisionVar();</div>
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<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span> <span class="keywordflow">if</span> (chosen_var == <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06">kNoIntegerVariable</a>) <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>();</div>
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<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> </div>
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<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> <span class="comment">// TODO(user): This will be overidden by the value decision heuristic in</span></div>
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<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> <span class="comment">// almost all cases.</span></div>
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<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>(</div>
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<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a3f4df9da99787316bfb5029b7a6b92b7">GreaterOrEqualToMiddleValue</a>(chosen_var, integer_trail));</div>
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<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> };</div>
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<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span>}</div>
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<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> </div>
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<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span><span class="comment">// A simple heuristic for scheduling models.</span></div>
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<div class="line"><a id="l00365" name="l00365"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a6c01e08a9089e0d5fed2507f479bbadc"> 365</a></span>std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a6c01e08a9089e0d5fed2507f479bbadc">SchedulingSearchHeuristic</a>(</div>
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<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00367" name="l00367"></a><span class="lineno"> 367</span> <span class="keyword">auto</span>* repo = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_intervals_repository.html">IntervalsRepository</a>>();</div>
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<div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span> <span class="keyword">auto</span>* heuristic = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_search_heuristics.html">SearchHeuristics</a>>();</div>
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<div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> <span class="keyword">auto</span>* trail = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_trail.html">Trail</a>>();</div>
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<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span> <span class="keyword">auto</span>* integer_trail = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>>();</div>
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<div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span> <span class="keywordflow">return</span> [repo, heuristic, trail, integer_trail]() {</div>
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<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span> <span class="keyword">struct </span>ToSchedule {</div>
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<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> <span class="comment">// Variable to fix.</span></div>
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<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span> LiteralIndex presence = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>;</div>
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<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_affine_expression.html">AffineExpression</a> <a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a>;</div>
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<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_affine_expression.html">AffineExpression</a> <a class="code hl_variable" href="sparse__submatrix_8cc.html#a4d53eac2ef2732c28fa9fb663e0c19a7">end</a>;</div>
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<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> </div>
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<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> <span class="comment">// Information to select best.</span></div>
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<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> IntegerValue size_min = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1227e67513602591fb959e35c9de66e8">kMaxIntegerValue</a>;</div>
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<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> IntegerValue <a class="code hl_variable" href="resource_8cc.html#aee52de7b225665566aa47246b9d6b8fa">time</a> = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1227e67513602591fb959e35c9de66e8">kMaxIntegerValue</a>;</div>
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<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> };</div>
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<div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> ToSchedule best;</div>
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<div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span> </div>
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<div class="line"><a id="l00384" name="l00384"></a><span class="lineno"> 384</span> <span class="comment">// TODO(user): we should also precompute fixed precedences and only fix</span></div>
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<div class="line"><a id="l00385" name="l00385"></a><span class="lineno"> 385</span> <span class="comment">// interval that have all their predecessors fixed.</span></div>
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<div class="line"><a id="l00386" name="l00386"></a><span class="lineno"> 386</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_intervals = repo->NumIntervals();</div>
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<div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span> <span class="keywordflow">for</span> (IntervalVariable i(0); i < num_intervals; ++i) {</div>
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<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"> 388</span> <span class="keywordflow">if</span> (repo->IsAbsent(i)) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00389" name="l00389"></a><span class="lineno"> 389</span> <span class="keywordflow">if</span> (!repo->IsPresent(i) || !integer_trail->IsFixed(repo->Start(i)) ||</div>
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<div class="line"><a id="l00390" name="l00390"></a><span class="lineno"> 390</span> !integer_trail->IsFixed(repo->End(i))) {</div>
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<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"> 391</span> IntegerValue <a class="code hl_variable" href="resource_8cc.html#aee52de7b225665566aa47246b9d6b8fa">time</a> = integer_trail->LowerBound(repo->Start(i));</div>
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<div class="line"><a id="l00392" name="l00392"></a><span class="lineno"> 392</span> <span class="keywordflow">if</span> (repo-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#acc1aaae243ed4381e84f8309aacb3bbc">IsOptional</a>(i)) {</div>
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<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span> <span class="comment">// For task whose presence is still unknown, our propagators should</span></div>
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<div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span> <span class="comment">// have propagated the minimium time as if it was present. So this</span></div>
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<div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span> <span class="comment">// should reflect the earliest time at which this interval can be</span></div>
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<div class="line"><a id="l00396" name="l00396"></a><span class="lineno"> 396</span> <span class="comment">// scheduled.</span></div>
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<div class="line"><a id="l00397" name="l00397"></a><span class="lineno"> 397</span> <a class="code hl_variable" href="resource_8cc.html#aee52de7b225665566aa47246b9d6b8fa">time</a> = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(<a class="code hl_variable" href="resource_8cc.html#aee52de7b225665566aa47246b9d6b8fa">time</a>, integer_trail->ConditionalLowerBound(</div>
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<div class="line"><a id="l00398" name="l00398"></a><span class="lineno"> 398</span> repo->PresenceLiteral(i), repo->Start(i)));</div>
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<div class="line"><a id="l00399" name="l00399"></a><span class="lineno"> 399</span> }</div>
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<div class="line"><a id="l00400" name="l00400"></a><span class="lineno"> 400</span> </div>
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<div class="line"><a id="l00401" name="l00401"></a><span class="lineno"> 401</span> <span class="comment">// For variable size, we compute the min size once the start is fixed</span></div>
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<div class="line"><a id="l00402" name="l00402"></a><span class="lineno"> 402</span> <span class="comment">// to time. This is needed to never pick the "artificial" makespan</span></div>
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<div class="line"><a id="l00403" name="l00403"></a><span class="lineno"> 403</span> <span class="comment">// interval at the end in priority compared to intervals that still</span></div>
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<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</span> <span class="comment">// need to be scheduled.</span></div>
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<div class="line"><a id="l00405" name="l00405"></a><span class="lineno"> 405</span> <span class="keyword">const</span> IntegerValue size_min =</div>
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<div class="line"><a id="l00406" name="l00406"></a><span class="lineno"> 406</span> <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(integer_trail->LowerBound(repo->Size(i)),</div>
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<div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span> integer_trail->LowerBound(repo->End(i)) - <a class="code hl_variable" href="resource_8cc.html#aee52de7b225665566aa47246b9d6b8fa">time</a>);</div>
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<div class="line"><a id="l00408" name="l00408"></a><span class="lineno"> 408</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="resource_8cc.html#aee52de7b225665566aa47246b9d6b8fa">time</a> < best.time ||</div>
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<div class="line"><a id="l00409" name="l00409"></a><span class="lineno"> 409</span> (<a class="code hl_variable" href="resource_8cc.html#aee52de7b225665566aa47246b9d6b8fa">time</a> == best.time && size_min < best.size_min)) {</div>
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<div class="line"><a id="l00410" name="l00410"></a><span class="lineno"> 410</span> best.presence = repo-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#acc1aaae243ed4381e84f8309aacb3bbc">IsOptional</a>(i) ? repo->PresenceLiteral(i).<a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a8ef12397d1682615bc3108c397734179">Index</a>()</div>
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<div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> : <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>;</div>
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<div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> best.start = repo->Start(i);</div>
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<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</span> best.end = repo->End(i);</div>
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<div class="line"><a id="l00414" name="l00414"></a><span class="lineno"> 414</span> best.time = <a class="code hl_variable" href="resource_8cc.html#aee52de7b225665566aa47246b9d6b8fa">time</a>;</div>
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<div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span> best.size_min = size_min;</div>
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<div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span> }</div>
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<div class="line"><a id="l00417" name="l00417"></a><span class="lineno"> 417</span> }</div>
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<div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> }</div>
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<div class="line"><a id="l00419" name="l00419"></a><span class="lineno"> 419</span> <span class="keywordflow">if</span> (best.time == <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1227e67513602591fb959e35c9de66e8">kMaxIntegerValue</a>) <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>();</div>
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<div class="line"><a id="l00420" name="l00420"></a><span class="lineno"> 420</span> </div>
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<div class="line"><a id="l00421" name="l00421"></a><span class="lineno"> 421</span> <span class="comment">// Use the next_decision_override to fix in turn all the variables from</span></div>
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|
<div class="line"><a id="l00422" name="l00422"></a><span class="lineno"> 422</span> <span class="comment">// the selected interval.</span></div>
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<div class="line"><a id="l00423" name="l00423"></a><span class="lineno"> 423</span> <span class="keywordtype">int</span> num_times = 0;</div>
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<div class="line"><a id="l00424" name="l00424"></a><span class="lineno"> 424</span> heuristic->next_decision_override = [trail, integer_trail, best,</div>
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<div class="line"><a id="l00425" name="l00425"></a><span class="lineno"> 425</span> num_times]() <span class="keyword">mutable</span> {</div>
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<div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span> <span class="keywordflow">if</span> (++num_times > 5) {</div>
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<div class="line"><a id="l00427" name="l00427"></a><span class="lineno"> 427</span> <span class="comment">// We have been trying to fix this interval for a while. Do we miss</span></div>
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<div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</span> <span class="comment">// some propagation? In any case, try to see if the heuristic above</span></div>
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<div class="line"><a id="l00429" name="l00429"></a><span class="lineno"> 429</span> <span class="comment">// would select something else.</span></div>
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<div class="line"><a id="l00430" name="l00430"></a><span class="lineno"> 430</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(3) << <span class="stringliteral">"Skipping ... "</span>;</div>
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|
<div class="line"><a id="l00431" name="l00431"></a><span class="lineno"> 431</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>();</div>
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|
<div class="line"><a id="l00432" name="l00432"></a><span class="lineno"> 432</span> }</div>
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<div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span> </div>
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<div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</span> <span class="comment">// First make sure the interval is present.</span></div>
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<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span> <span class="keywordflow">if</span> (best.presence != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>) {</div>
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|
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> <span class="keywordflow">if</span> (!trail->Assignment().LiteralIsAssigned(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(best.presence))) {</div>
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|
<div class="line"><a id="l00437" name="l00437"></a><span class="lineno"> 437</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(3) << <span class="stringliteral">"assign "</span> << best.presence;</div>
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|
<div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>(best.presence);</div>
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|
<div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span> }</div>
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<div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> <span class="keywordflow">if</span> (trail->Assignment().LiteralIsFalse(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(best.presence))) {</div>
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|
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(2) << <span class="stringliteral">"unperformed."</span>;</div>
|
|
<div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>();</div>
|
|
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span> }</div>
|
|
<div class="line"><a id="l00444" name="l00444"></a><span class="lineno"> 444</span> }</div>
|
|
<div class="line"><a id="l00445" name="l00445"></a><span class="lineno"> 445</span> </div>
|
|
<div class="line"><a id="l00446" name="l00446"></a><span class="lineno"> 446</span> <span class="comment">// We assume that start_min is propagated by now.</span></div>
|
|
<div class="line"><a id="l00447" name="l00447"></a><span class="lineno"> 447</span> <span class="keywordflow">if</span> (!integer_trail->IsFixed(best.start)) {</div>
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|
<div class="line"><a id="l00448" name="l00448"></a><span class="lineno"> 448</span> <span class="keyword">const</span> IntegerValue <a class="code hl_variable" href="sched__constraints_8cc.html#a826c744af066625acb241b17ae3e2be9">start_min</a> = integer_trail->LowerBound(best.start);</div>
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|
<div class="line"><a id="l00449" name="l00449"></a><span class="lineno"> 449</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(3) << <span class="stringliteral">"start == "</span> << <a class="code hl_variable" href="sched__constraints_8cc.html#a826c744af066625acb241b17ae3e2be9">start_min</a>;</div>
|
|
<div class="line"><a id="l00450" name="l00450"></a><span class="lineno"> 450</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>(best.start.LowerOrEqual(<a class="code hl_variable" href="sched__constraints_8cc.html#a826c744af066625acb241b17ae3e2be9">start_min</a>));</div>
|
|
<div class="line"><a id="l00451" name="l00451"></a><span class="lineno"> 451</span> }</div>
|
|
<div class="line"><a id="l00452" name="l00452"></a><span class="lineno"> 452</span> </div>
|
|
<div class="line"><a id="l00453" name="l00453"></a><span class="lineno"> 453</span> <span class="comment">// We assume that end_min is propagated by now.</span></div>
|
|
<div class="line"><a id="l00454" name="l00454"></a><span class="lineno"> 454</span> <span class="keywordflow">if</span> (!integer_trail->IsFixed(best.end)) {</div>
|
|
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno"> 455</span> <span class="keyword">const</span> IntegerValue <a class="code hl_variable" href="sched__constraints_8cc.html#ad3f96403731a9e915dad229813609e74">end_min</a> = integer_trail->LowerBound(best.end);</div>
|
|
<div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(3) << <span class="stringliteral">"end == "</span> << <a class="code hl_variable" href="sched__constraints_8cc.html#ad3f96403731a9e915dad229813609e74">end_min</a>;</div>
|
|
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>(best.end.LowerOrEqual(<a class="code hl_variable" href="sched__constraints_8cc.html#ad3f96403731a9e915dad229813609e74">end_min</a>));</div>
|
|
<div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span> }</div>
|
|
<div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</span> </div>
|
|
<div class="line"><a id="l00460" name="l00460"></a><span class="lineno"> 460</span> <span class="comment">// Everything is fixed, dettach the override.</span></div>
|
|
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span> <span class="keyword">const</span> IntegerValue <a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a> = integer_trail->LowerBound(best.start);</div>
|
|
<div class="line"><a id="l00462" name="l00462"></a><span class="lineno"> 462</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(2) << <span class="stringliteral">"Fixed @["</span> << <a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a> << <span class="stringliteral">","</span></div>
|
|
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span> << integer_trail->LowerBound(best.end) << <span class="stringliteral">"]"</span></div>
|
|
<div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</span> << (best.presence != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a></div>
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|
<div class="line"><a id="l00465" name="l00465"></a><span class="lineno"> 465</span> ? absl::StrCat(<span class="stringliteral">" presence="</span>,</div>
|
|
<div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(best.presence).<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a764be64f3029f8b8e23511061d8de355">DebugString</a>())</div>
|
|
<div class="line"><a id="l00467" name="l00467"></a><span class="lineno"> 467</span> : <span class="stringliteral">""</span>)</div>
|
|
<div class="line"><a id="l00468" name="l00468"></a><span class="lineno"> 468</span> << (best.time < <a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a></div>
|
|
<div class="line"><a id="l00469" name="l00469"></a><span class="lineno"> 469</span> ? absl::StrCat(<span class="stringliteral">" start_at_selection="</span>, best.time.value())</div>
|
|
<div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span> : <span class="stringliteral">""</span>);</div>
|
|
<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>();</div>
|
|
<div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span> };</div>
|
|
<div class="line"><a id="l00473" name="l00473"></a><span class="lineno"> 473</span> </div>
|
|
<div class="line"><a id="l00474" name="l00474"></a><span class="lineno"> 474</span> <span class="keywordflow">return</span> heuristic->next_decision_override();</div>
|
|
<div class="line"><a id="l00475" name="l00475"></a><span class="lineno"> 475</span> };</div>
|
|
<div class="line"><a id="l00476" name="l00476"></a><span class="lineno"> 476</span>}</div>
|
|
<div class="line"><a id="l00477" name="l00477"></a><span class="lineno"> 477</span> </div>
|
|
<div class="line"><a id="l00478" name="l00478"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#af7f519865479d23c58e76b1fe416a2f1"> 478</a></span>std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#af7f519865479d23c58e76b1fe416a2f1">RandomizeOnRestartHeuristic</a>(</div>
|
|
<div class="line"><a id="l00479" name="l00479"></a><span class="lineno"> 479</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
|
|
<div class="line"><a id="l00480" name="l00480"></a><span class="lineno"> 480</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* sat_solver = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>>();</div>
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<div class="line"><a id="l00481" name="l00481"></a><span class="lineno"> 481</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_decision_policy.html">SatDecisionPolicy</a>* decision_policy = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_decision_policy.html">SatDecisionPolicy</a>>();</div>
|
|
<div class="line"><a id="l00482" name="l00482"></a><span class="lineno"> 482</span> </div>
|
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<div class="line"><a id="l00483" name="l00483"></a><span class="lineno"> 483</span> <span class="comment">// TODO(user): Add other policy and perform more experiments.</span></div>
|
|
<div class="line"><a id="l00484" name="l00484"></a><span class="lineno"> 484</span> std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> sat_policy =</div>
|
|
<div class="line"><a id="l00485" name="l00485"></a><span class="lineno"> 485</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a8f18cefafff72d70f6e96ed3f2ef84aa">SatSolverHeuristic</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
|
|
<div class="line"><a id="l00486" name="l00486"></a><span class="lineno"> 486</span> std::vector<std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()>> policies{</div>
|
|
<div class="line"><a id="l00487" name="l00487"></a><span class="lineno"> 487</span> sat_policy, <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2acd1aef8e418e20032fd893668c04a6">SequentialSearch</a>({<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aefab46ecc02eb059ed853ee0213be7fb">PseudoCost</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>), sat_policy})};</div>
|
|
<div class="line"><a id="l00488" name="l00488"></a><span class="lineno"> 488</span> <span class="comment">// The higher weight for the sat policy is because this policy actually</span></div>
|
|
<div class="line"><a id="l00489" name="l00489"></a><span class="lineno"> 489</span> <span class="comment">// contains a lot of variation as we randomize the sat parameters.</span></div>
|
|
<div class="line"><a id="l00490" name="l00490"></a><span class="lineno"> 490</span> <span class="comment">// TODO(user): Do more experiments to find better distribution.</span></div>
|
|
<div class="line"><a id="l00491" name="l00491"></a><span class="lineno"> 491</span> std::discrete_distribution<int> var_dist{3 <span class="comment">/*sat_policy*/</span>, 1 <span class="comment">/*Pseudo cost*/</span>};</div>
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|
<div class="line"><a id="l00492" name="l00492"></a><span class="lineno"> 492</span> </div>
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|
<div class="line"><a id="l00493" name="l00493"></a><span class="lineno"> 493</span> <span class="comment">// Value selection.</span></div>
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|
<div class="line"><a id="l00494" name="l00494"></a><span class="lineno"> 494</span> std::vector<std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a>(IntegerVariable)>></div>
|
|
<div class="line"><a id="l00495" name="l00495"></a><span class="lineno"> 495</span> value_selection_heuristics;</div>
|
|
<div class="line"><a id="l00496" name="l00496"></a><span class="lineno"> 496</span> std::vector<int> value_selection_weight;</div>
|
|
<div class="line"><a id="l00497" name="l00497"></a><span class="lineno"> 497</span> </div>
|
|
<div class="line"><a id="l00498" name="l00498"></a><span class="lineno"> 498</span> <span class="comment">// LP Based value.</span></div>
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<div class="line"><a id="l00499" name="l00499"></a><span class="lineno"> 499</span> value_selection_heuristics.push_back([<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>](IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div>
|
|
<div class="line"><a id="l00500" name="l00500"></a><span class="lineno"> 500</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ac0774a1df651b83339b00fee0bde1cd8">SplitAroundLpValue</a>(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a7f1ac774d4646a83631f8117f4ea03f5">PositiveVariable</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>), <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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|
<div class="line"><a id="l00501" name="l00501"></a><span class="lineno"> 501</span> });</div>
|
|
<div class="line"><a id="l00502" name="l00502"></a><span class="lineno"> 502</span> value_selection_weight.push_back(8);</div>
|
|
<div class="line"><a id="l00503" name="l00503"></a><span class="lineno"> 503</span> </div>
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|
<div class="line"><a id="l00504" name="l00504"></a><span class="lineno"> 504</span> <span class="comment">// Solution based value.</span></div>
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|
<div class="line"><a id="l00505" name="l00505"></a><span class="lineno"> 505</span> <span class="keyword">auto</span>* response_manager = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Get<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_shared_response_manager.html">SharedResponseManager</a>>();</div>
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|
<div class="line"><a id="l00506" name="l00506"></a><span class="lineno"> 506</span> <span class="keywordflow">if</span> (response_manager != <span class="keyword">nullptr</span>) {</div>
|
|
<div class="line"><a id="l00507" name="l00507"></a><span class="lineno"> 507</span> value_selection_heuristics.push_back(</div>
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|
<div class="line"><a id="l00508" name="l00508"></a><span class="lineno"> 508</span> [<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>, response_manager](IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div>
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<div class="line"><a id="l00509" name="l00509"></a><span class="lineno"> 509</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ac4a25d47a029efe205efbc015f7c7e7c">SplitUsingBestSolutionValueInRepository</a>(</div>
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<div class="line"><a id="l00510" name="l00510"></a><span class="lineno"> 510</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, response_manager->SolutionsRepository(), <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00511" name="l00511"></a><span class="lineno"> 511</span> });</div>
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<div class="line"><a id="l00512" name="l00512"></a><span class="lineno"> 512</span> value_selection_weight.push_back(5);</div>
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<div class="line"><a id="l00513" name="l00513"></a><span class="lineno"> 513</span> }</div>
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<div class="line"><a id="l00514" name="l00514"></a><span class="lineno"> 514</span> </div>
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<div class="line"><a id="l00515" name="l00515"></a><span class="lineno"> 515</span> <span class="comment">// Relaxation solution based value.</span></div>
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<div class="line"><a id="l00516" name="l00516"></a><span class="lineno"> 516</span> <span class="keyword">auto</span>* <a class="code hl_variable" href="cp__model__solver_8cc.html#a2a2278bd1fb787198e496b7d443a05e8">relaxation_solutions</a> = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Get<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_shared_relaxation_solution_repository.html">SharedRelaxationSolutionRepository</a>>();</div>
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<div class="line"><a id="l00517" name="l00517"></a><span class="lineno"> 517</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="cp__model__solver_8cc.html#a2a2278bd1fb787198e496b7d443a05e8">relaxation_solutions</a> != <span class="keyword">nullptr</span>) {</div>
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<div class="line"><a id="l00518" name="l00518"></a><span class="lineno"> 518</span> value_selection_heuristics.push_back(</div>
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<div class="line"><a id="l00519" name="l00519"></a><span class="lineno"> 519</span> [<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>, <a class="code hl_variable" href="cp__model__solver_8cc.html#a2a2278bd1fb787198e496b7d443a05e8">relaxation_solutions</a>](IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div>
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|
<div class="line"><a id="l00520" name="l00520"></a><span class="lineno"> 520</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ac4a25d47a029efe205efbc015f7c7e7c">SplitUsingBestSolutionValueInRepository</a>(</div>
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<div class="line"><a id="l00521" name="l00521"></a><span class="lineno"> 521</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, *<a class="code hl_variable" href="cp__model__solver_8cc.html#a2a2278bd1fb787198e496b7d443a05e8">relaxation_solutions</a>, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00522" name="l00522"></a><span class="lineno"> 522</span> });</div>
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|
<div class="line"><a id="l00523" name="l00523"></a><span class="lineno"> 523</span> value_selection_weight.push_back(3);</div>
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<div class="line"><a id="l00524" name="l00524"></a><span class="lineno"> 524</span> }</div>
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<div class="line"><a id="l00525" name="l00525"></a><span class="lineno"> 525</span> </div>
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<div class="line"><a id="l00526" name="l00526"></a><span class="lineno"> 526</span> <span class="comment">// Middle value.</span></div>
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|
<div class="line"><a id="l00527" name="l00527"></a><span class="lineno"> 527</span> <span class="keyword">auto</span>* integer_trail = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>>();</div>
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<div class="line"><a id="l00528" name="l00528"></a><span class="lineno"> 528</span> value_selection_heuristics.push_back([integer_trail](IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div>
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<div class="line"><a id="l00529" name="l00529"></a><span class="lineno"> 529</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a3f4df9da99787316bfb5029b7a6b92b7">GreaterOrEqualToMiddleValue</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, integer_trail);</div>
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<div class="line"><a id="l00530" name="l00530"></a><span class="lineno"> 530</span> });</div>
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|
<div class="line"><a id="l00531" name="l00531"></a><span class="lineno"> 531</span> value_selection_weight.push_back(1);</div>
|
|
<div class="line"><a id="l00532" name="l00532"></a><span class="lineno"> 532</span> </div>
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<div class="line"><a id="l00533" name="l00533"></a><span class="lineno"> 533</span> <span class="comment">// Min value.</span></div>
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<div class="line"><a id="l00534" name="l00534"></a><span class="lineno"> 534</span> value_selection_heuristics.push_back([integer_trail](IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div>
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|
<div class="line"><a id="l00535" name="l00535"></a><span class="lineno"> 535</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a304417ca7c3964cc928b771620b2dc53">AtMinValue</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, integer_trail);</div>
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<div class="line"><a id="l00536" name="l00536"></a><span class="lineno"> 536</span> });</div>
|
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<div class="line"><a id="l00537" name="l00537"></a><span class="lineno"> 537</span> value_selection_weight.push_back(1);</div>
|
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<div class="line"><a id="l00538" name="l00538"></a><span class="lineno"> 538</span> </div>
|
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<div class="line"><a id="l00539" name="l00539"></a><span class="lineno"> 539</span> <span class="comment">// Special case: Don't change the decision value.</span></div>
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|
<div class="line"><a id="l00540" name="l00540"></a><span class="lineno"> 540</span> value_selection_weight.push_back(10);</div>
|
|
<div class="line"><a id="l00541" name="l00541"></a><span class="lineno"> 541</span> </div>
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<div class="line"><a id="l00542" name="l00542"></a><span class="lineno"> 542</span> <span class="comment">// TODO(user): These distribution values are just guessed values. They need</span></div>
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<div class="line"><a id="l00543" name="l00543"></a><span class="lineno"> 543</span> <span class="comment">// to be tuned.</span></div>
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<div class="line"><a id="l00544" name="l00544"></a><span class="lineno"> 544</span> std::discrete_distribution<int> val_dist(value_selection_weight.begin(),</div>
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<div class="line"><a id="l00545" name="l00545"></a><span class="lineno"> 545</span> value_selection_weight.end());</div>
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<div class="line"><a id="l00546" name="l00546"></a><span class="lineno"> 546</span> </div>
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<div class="line"><a id="l00547" name="l00547"></a><span class="lineno"> 547</span> <span class="keywordtype">int</span> policy_index = 0;</div>
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<div class="line"><a id="l00548" name="l00548"></a><span class="lineno"> 548</span> <span class="keywordtype">int</span> val_policy_index = 0;</div>
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<div class="line"><a id="l00549" name="l00549"></a><span class="lineno"> 549</span> <span class="keyword">auto</span>* encoder = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_encoder.html">IntegerEncoder</a>>();</div>
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<div class="line"><a id="l00550" name="l00550"></a><span class="lineno"> 550</span> <span class="keywordflow">return</span> [=]() <span class="keyword">mutable</span> {</div>
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<div class="line"><a id="l00551" name="l00551"></a><span class="lineno"> 551</span> <span class="keywordflow">if</span> (sat_solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ad63c4461a1384629cb99413c6df8b9ca">CurrentDecisionLevel</a>() == 0) {</div>
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<div class="line"><a id="l00552" name="l00552"></a><span class="lineno"> 552</span> <span class="keyword">auto</span>* random = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model_random_generator.html">ModelRandomGenerator</a>>();</div>
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|
<div class="line"><a id="l00553" name="l00553"></a><span class="lineno"> 553</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a0441e1a54fe203c0707131e587de8fae">RandomizeDecisionHeuristic</a>(*random, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<SatParameters>());</div>
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|
<div class="line"><a id="l00554" name="l00554"></a><span class="lineno"> 554</span> decision_policy->ResetDecisionHeuristic();</div>
|
|
<div class="line"><a id="l00555" name="l00555"></a><span class="lineno"> 555</span> </div>
|
|
<div class="line"><a id="l00556" name="l00556"></a><span class="lineno"> 556</span> <span class="comment">// Select the variable selection heuristic.</span></div>
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|
<div class="line"><a id="l00557" name="l00557"></a><span class="lineno"> 557</span> policy_index = var_dist(*(random));</div>
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|
<div class="line"><a id="l00558" name="l00558"></a><span class="lineno"> 558</span> </div>
|
|
<div class="line"><a id="l00559" name="l00559"></a><span class="lineno"> 559</span> <span class="comment">// Select the value selection heuristic.</span></div>
|
|
<div class="line"><a id="l00560" name="l00560"></a><span class="lineno"> 560</span> val_policy_index = val_dist(*(random));</div>
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<div class="line"><a id="l00561" name="l00561"></a><span class="lineno"> 561</span> }</div>
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<div class="line"><a id="l00562" name="l00562"></a><span class="lineno"> 562</span> </div>
|
|
<div class="line"><a id="l00563" name="l00563"></a><span class="lineno"> 563</span> <span class="comment">// Get the current decision.</span></div>
|
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<div class="line"><a id="l00564" name="l00564"></a><span class="lineno"> 564</span> <span class="keyword">const</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a> current_decision = policies[policy_index]();</div>
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<div class="line"><a id="l00565" name="l00565"></a><span class="lineno"> 565</span> <span class="keywordflow">if</span> (!current_decision.<a class="code hl_function" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#ae26b73bbf70dc88433be39df364ca7c1">HasValue</a>()) <span class="keywordflow">return</span> current_decision;</div>
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<div class="line"><a id="l00566" name="l00566"></a><span class="lineno"> 566</span> </div>
|
|
<div class="line"><a id="l00567" name="l00567"></a><span class="lineno"> 567</span> <span class="comment">// Special case: Don't override the decision value.</span></div>
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<div class="line"><a id="l00568" name="l00568"></a><span class="lineno"> 568</span> <span class="keywordflow">if</span> (val_policy_index >= value_selection_heuristics.size()) {</div>
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<div class="line"><a id="l00569" name="l00569"></a><span class="lineno"> 569</span> <span class="keywordflow">return</span> current_decision;</div>
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<div class="line"><a id="l00570" name="l00570"></a><span class="lineno"> 570</span> }</div>
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<div class="line"><a id="l00571" name="l00571"></a><span class="lineno"> 571</span> </div>
|
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<div class="line"><a id="l00572" name="l00572"></a><span class="lineno"> 572</span> <span class="keywordflow">if</span> (current_decision.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a3c6f3ae96a90c7fcef34dd0f1ce0297e">boolean_literal_index</a> == <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>) {</div>
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<div class="line"><a id="l00573" name="l00573"></a><span class="lineno"> 573</span> <span class="keyword">const</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> new_decision =</div>
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<div class="line"><a id="l00574" name="l00574"></a><span class="lineno"> 574</span> value_selection_heuristics[val_policy_index](</div>
|
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<div class="line"><a id="l00575" name="l00575"></a><span class="lineno"> 575</span> current_decision.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#aee356429e37f0750e38ee17ae1464a00">integer_literal</a>.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_integer_literal.html#ab6516f556b715738034b30d290c40214">var</a>);</div>
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<div class="line"><a id="l00576" name="l00576"></a><span class="lineno"> 576</span> <span class="keywordflow">if</span> (new_decision.<a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#ac532c4b500b1a85ea22217f2c65a70ed">IsValid</a>()) <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>(new_decision);</div>
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<div class="line"><a id="l00577" name="l00577"></a><span class="lineno"> 577</span> <span class="keywordflow">return</span> current_decision;</div>
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<div class="line"><a id="l00578" name="l00578"></a><span class="lineno"> 578</span> }</div>
|
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<div class="line"><a id="l00579" name="l00579"></a><span class="lineno"> 579</span> </div>
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<div class="line"><a id="l00580" name="l00580"></a><span class="lineno"> 580</span> <span class="comment">// Decode the decision and get the variable.</span></div>
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<div class="line"><a id="l00581" name="l00581"></a><span class="lineno"> 581</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> l : encoder->GetAllIntegerLiterals(</div>
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<div class="line"><a id="l00582" name="l00582"></a><span class="lineno"> 582</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(current_decision.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a3c6f3ae96a90c7fcef34dd0f1ce0297e">boolean_literal_index</a>))) {</div>
|
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<div class="line"><a id="l00583" name="l00583"></a><span class="lineno"> 583</span> <span class="keywordflow">if</span> (integer_trail->IsCurrentlyIgnored(l.var)) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00584" name="l00584"></a><span class="lineno"> 584</span> </div>
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<div class="line"><a id="l00585" name="l00585"></a><span class="lineno"> 585</span> <span class="comment">// Try the selected policy.</span></div>
|
|
<div class="line"><a id="l00586" name="l00586"></a><span class="lineno"> 586</span> <span class="keyword">const</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> new_decision =</div>
|
|
<div class="line"><a id="l00587" name="l00587"></a><span class="lineno"> 587</span> value_selection_heuristics[val_policy_index](l.var);</div>
|
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<div class="line"><a id="l00588" name="l00588"></a><span class="lineno"> 588</span> <span class="keywordflow">if</span> (new_decision.<a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#ac532c4b500b1a85ea22217f2c65a70ed">IsValid</a>()) <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>(new_decision);</div>
|
|
<div class="line"><a id="l00589" name="l00589"></a><span class="lineno"> 589</span> }</div>
|
|
<div class="line"><a id="l00590" name="l00590"></a><span class="lineno"> 590</span> </div>
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<div class="line"><a id="l00591" name="l00591"></a><span class="lineno"> 591</span> <span class="comment">// Selected policy failed. Revert back to original decision.</span></div>
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|
<div class="line"><a id="l00592" name="l00592"></a><span class="lineno"> 592</span> <span class="keywordflow">return</span> current_decision;</div>
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|
<div class="line"><a id="l00593" name="l00593"></a><span class="lineno"> 593</span> };</div>
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|
<div class="line"><a id="l00594" name="l00594"></a><span class="lineno"> 594</span>}</div>
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<div class="line"><a id="l00595" name="l00595"></a><span class="lineno"> 595</span> </div>
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<div class="line"><a id="l00596" name="l00596"></a><span class="lineno"> 596</span><span class="comment">// TODO(user): Avoid the quadratic algorithm!!</span></div>
|
|
<div class="line"><a id="l00597" name="l00597"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a5c07862681284286ab67401730668f38"> 597</a></span>std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a5c07862681284286ab67401730668f38">FollowHint</a>(</div>
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|
<div class="line"><a id="l00598" name="l00598"></a><span class="lineno"> 598</span> <span class="keyword">const</span> std::vector<BooleanOrIntegerVariable>& vars,</div>
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<div class="line"><a id="l00599" name="l00599"></a><span class="lineno"> 599</span> <span class="keyword">const</span> std::vector<IntegerValue>& values, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
|
|
<div class="line"><a id="l00600" name="l00600"></a><span class="lineno"> 600</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_trail.html">Trail</a>* trail = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_trail.html">Trail</a>>();</div>
|
|
<div class="line"><a id="l00601" name="l00601"></a><span class="lineno"> 601</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>* integer_trail = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>>();</div>
|
|
<div class="line"><a id="l00602" name="l00602"></a><span class="lineno"> 602</span> <span class="keywordflow">return</span> [=] { <span class="comment">// copy</span></div>
|
|
<div class="line"><a id="l00603" name="l00603"></a><span class="lineno"> 603</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < vars.size(); ++i) {</div>
|
|
<div class="line"><a id="l00604" name="l00604"></a><span class="lineno"> 604</span> <span class="keyword">const</span> IntegerValue <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = values[i];</div>
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<div class="line"><a id="l00605" name="l00605"></a><span class="lineno"> 605</span> <span class="keywordflow">if</span> (vars[i].bool_var != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#add67896a84f6372a648154c5770a0ae0">kNoBooleanVariable</a>) {</div>
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<div class="line"><a id="l00606" name="l00606"></a><span class="lineno"> 606</span> <span class="keywordflow">if</span> (trail-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#a4793952607a98dfddfbcc17abfabbb4b">Assignment</a>().<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#a49e751eb6f0e9babd957889bb8e7472d">VariableIsAssigned</a>(vars[i].bool_var)) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00607" name="l00607"></a><span class="lineno"> 607</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>(</div>
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<div class="line"><a id="l00608" name="l00608"></a><span class="lineno"> 608</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(vars[i].bool_var, <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> == 1).<a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#ac89c7b45754e9a6bdabc08bea586fc4e">Index</a>());</div>
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<div class="line"><a id="l00609" name="l00609"></a><span class="lineno"> 609</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00610" name="l00610"></a><span class="lineno"> 610</span> <span class="keyword">const</span> IntegerVariable integer_var = vars[i].int_var;</div>
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<div class="line"><a id="l00611" name="l00611"></a><span class="lineno"> 611</span> <span class="keywordflow">if</span> (integer_trail->IsCurrentlyIgnored(integer_var)) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00612" name="l00612"></a><span class="lineno"> 612</span> <span class="keywordflow">if</span> (integer_trail->IsFixed(integer_var)) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00613" name="l00613"></a><span class="lineno"> 613</span> </div>
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<div class="line"><a id="l00614" name="l00614"></a><span class="lineno"> 614</span> <span class="keyword">const</span> IntegerVariable positive_var = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a7f1ac774d4646a83631f8117f4ea03f5">PositiveVariable</a>(integer_var);</div>
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<div class="line"><a id="l00615" name="l00615"></a><span class="lineno"> 615</span> <span class="keyword">const</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> decision = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a46cb4c07c4971a99724693260c92fd5b">SplitAroundGivenValue</a>(</div>
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<div class="line"><a id="l00616" name="l00616"></a><span class="lineno"> 616</span> positive_var, positive_var != integer_var ? -<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> : <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00617" name="l00617"></a><span class="lineno"> 617</span> <span class="keywordflow">if</span> (decision.<a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#ac532c4b500b1a85ea22217f2c65a70ed">IsValid</a>()) <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>(decision);</div>
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<div class="line"><a id="l00618" name="l00618"></a><span class="lineno"> 618</span> </div>
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<div class="line"><a id="l00619" name="l00619"></a><span class="lineno"> 619</span> <span class="comment">// If the value is outside the current possible domain, we skip it.</span></div>
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<div class="line"><a id="l00620" name="l00620"></a><span class="lineno"> 620</span> <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00621" name="l00621"></a><span class="lineno"> 621</span> }</div>
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<div class="line"><a id="l00622" name="l00622"></a><span class="lineno"> 622</span> }</div>
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<div class="line"><a id="l00623" name="l00623"></a><span class="lineno"> 623</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>();</div>
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|
<div class="line"><a id="l00624" name="l00624"></a><span class="lineno"> 624</span> };</div>
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|
<div class="line"><a id="l00625" name="l00625"></a><span class="lineno"> 625</span>}</div>
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|
<div class="line"><a id="l00626" name="l00626"></a><span class="lineno"> 626</span> </div>
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<div class="line"><a id="l00627" name="l00627"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a5fcdf1d56a24d096d0c381a9708d4fa9"> 627</a></span>std::function<bool()> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a5fcdf1d56a24d096d0c381a9708d4fa9">RestartEveryKFailures</a>(<span class="keywordtype">int</span> k, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* solver) {</div>
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<div class="line"><a id="l00628" name="l00628"></a><span class="lineno"> 628</span> <span class="keywordtype">bool</span> reset_at_next_call = <span class="keyword">true</span>;</div>
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|
<div class="line"><a id="l00629" name="l00629"></a><span class="lineno"> 629</span> <span class="keywordtype">int</span> next_num_failures = 0;</div>
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|
<div class="line"><a id="l00630" name="l00630"></a><span class="lineno"> 630</span> <span class="keywordflow">return</span> [=]() <span class="keyword">mutable</span> {</div>
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<div class="line"><a id="l00631" name="l00631"></a><span class="lineno"> 631</span> <span class="keywordflow">if</span> (reset_at_next_call) {</div>
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<div class="line"><a id="l00632" name="l00632"></a><span class="lineno"> 632</span> next_num_failures = solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#acace892b69b55e3ee219e2893f34ef8f">num_failures</a>() + k;</div>
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<div class="line"><a id="l00633" name="l00633"></a><span class="lineno"> 633</span> reset_at_next_call = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00634" name="l00634"></a><span class="lineno"> 634</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#acace892b69b55e3ee219e2893f34ef8f">num_failures</a>() >= next_num_failures) {</div>
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|
<div class="line"><a id="l00635" name="l00635"></a><span class="lineno"> 635</span> reset_at_next_call = <span class="keyword">true</span>;</div>
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|
<div class="line"><a id="l00636" name="l00636"></a><span class="lineno"> 636</span> }</div>
|
|
<div class="line"><a id="l00637" name="l00637"></a><span class="lineno"> 637</span> <span class="keywordflow">return</span> reset_at_next_call;</div>
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|
<div class="line"><a id="l00638" name="l00638"></a><span class="lineno"> 638</span> };</div>
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|
<div class="line"><a id="l00639" name="l00639"></a><span class="lineno"> 639</span>}</div>
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|
<div class="line"><a id="l00640" name="l00640"></a><span class="lineno"> 640</span> </div>
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<div class="line"><a id="l00641" name="l00641"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a527a6ee26b7f573def70daf9b2a9e577"> 641</a></span>std::function<bool()> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a527a6ee26b7f573def70daf9b2a9e577">SatSolverRestartPolicy</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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|
<div class="line"><a id="l00642" name="l00642"></a><span class="lineno"> 642</span> <span class="keyword">auto</span> policy = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_restart_policy.html">RestartPolicy</a>>();</div>
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|
<div class="line"><a id="l00643" name="l00643"></a><span class="lineno"> 643</span> <span class="keywordflow">return</span> [policy]() { <span class="keywordflow">return</span> policy-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_restart_policy.html#a9a4dbc2c6849f437d4f08288eeffbfed">ShouldRestart</a>(); };</div>
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|
<div class="line"><a id="l00644" name="l00644"></a><span class="lineno"> 644</span>}</div>
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|
<div class="line"><a id="l00645" name="l00645"></a><span class="lineno"> 645</span> </div>
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|
<div class="line"><a id="l00646" name="l00646"></a><span class="lineno"> 646</span><span class="keyword">namespace </span>{</div>
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|
<div class="line"><a id="l00647" name="l00647"></a><span class="lineno"> 647</span> </div>
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|
<div class="line"><a id="l00648" name="l00648"></a><span class="lineno"> 648</span>std::function<BooleanOrIntegerLiteral()> WrapIntegerLiteralHeuristic(</div>
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|
<div class="line"><a id="l00649" name="l00649"></a><span class="lineno"> 649</span> std::function<IntegerLiteral()> f) {</div>
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|
<div class="line"><a id="l00650" name="l00650"></a><span class="lineno"> 650</span> <span class="keywordflow">return</span> [f]() { <span class="keywordflow">return</span> BooleanOrIntegerLiteral(f()); };</div>
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|
<div class="line"><a id="l00651" name="l00651"></a><span class="lineno"> 651</span>}</div>
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|
<div class="line"><a id="l00652" name="l00652"></a><span class="lineno"> 652</span> </div>
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<div class="line"><a id="l00653" name="l00653"></a><span class="lineno"> 653</span>} <span class="comment">// namespace</span></div>
|
|
<div class="line"><a id="l00654" name="l00654"></a><span class="lineno"> 654</span> </div>
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<div class="line"><a id="l00655" name="l00655"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a7ac1d9dc3254d77ade7bdbf984884b7e"> 655</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a7ac1d9dc3254d77ade7bdbf984884b7e">ConfigureSearchHeuristics</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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|
<div class="line"><a id="l00656" name="l00656"></a><span class="lineno"> 656</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_search_heuristics.html">SearchHeuristics</a>& heuristics = *<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_search_heuristics.html">SearchHeuristics</a>>();</div>
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|
<div class="line"><a id="l00657" name="l00657"></a><span class="lineno"> 657</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a984249b5c2efe8f16e6942b54be739a5">fixed_search</a> != <span class="keyword">nullptr</span>);</div>
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|
<div class="line"><a id="l00658" name="l00658"></a><span class="lineno"> 658</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af2155539e87804108c670c32478e123d">policy_index</a> = 0;</div>
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<div class="line"><a id="l00659" name="l00659"></a><span class="lineno"> 659</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a>.clear();</div>
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|
<div class="line"><a id="l00660" name="l00660"></a><span class="lineno"> 660</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">restart_policies</a>.clear();</div>
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|
<div class="line"><a id="l00661" name="l00661"></a><span class="lineno"> 661</span> </div>
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<div class="line"><a id="l00662" name="l00662"></a><span class="lineno"> 662</span> <span class="keyword">const</span> SatParameters& <a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a> = *(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<SatParameters>());</div>
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<div class="line"><a id="l00663" name="l00663"></a><span class="lineno"> 663</span> <span class="keywordflow">switch</span> (<a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>.search_branching()) {</div>
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<div class="line"><a id="l00664" name="l00664"></a><span class="lineno"> 664</span> <span class="keywordflow">case</span> SatParameters::AUTOMATIC_SEARCH: {</div>
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|
<div class="line"><a id="l00665" name="l00665"></a><span class="lineno"> 665</span> std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> decision_policy;</div>
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<div class="line"><a id="l00666" name="l00666"></a><span class="lineno"> 666</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>.randomize_search()) {</div>
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|
<div class="line"><a id="l00667" name="l00667"></a><span class="lineno"> 667</span> decision_policy = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#af7f519865479d23c58e76b1fe416a2f1">RandomizeOnRestartHeuristic</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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|
<div class="line"><a id="l00668" name="l00668"></a><span class="lineno"> 668</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00669" name="l00669"></a><span class="lineno"> 669</span> decision_policy = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a8f18cefafff72d70f6e96ed3f2ef84aa">SatSolverHeuristic</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
|
|
<div class="line"><a id="l00670" name="l00670"></a><span class="lineno"> 670</span> }</div>
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|
<div class="line"><a id="l00671" name="l00671"></a><span class="lineno"> 671</span> decision_policy =</div>
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<div class="line"><a id="l00672" name="l00672"></a><span class="lineno"> 672</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2acd1aef8e418e20032fd893668c04a6">SequentialSearch</a>({decision_policy, heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a984249b5c2efe8f16e6942b54be739a5">fixed_search</a>});</div>
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|
<div class="line"><a id="l00673" name="l00673"></a><span class="lineno"> 673</span> decision_policy = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a88ab44e20ce09e9942f6b8411452df27">IntegerValueSelectionHeuristic</a>(decision_policy, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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|
<div class="line"><a id="l00674" name="l00674"></a><span class="lineno"> 674</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a> = {decision_policy};</div>
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<div class="line"><a id="l00675" name="l00675"></a><span class="lineno"> 675</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">restart_policies</a> = {<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a527a6ee26b7f573def70daf9b2a9e577">SatSolverRestartPolicy</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)};</div>
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|
<div class="line"><a id="l00676" name="l00676"></a><span class="lineno"> 676</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00677" name="l00677"></a><span class="lineno"> 677</span> }</div>
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<div class="line"><a id="l00678" name="l00678"></a><span class="lineno"> 678</span> <span class="keywordflow">case</span> SatParameters::FIXED_SEARCH: {</div>
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|
<div class="line"><a id="l00679" name="l00679"></a><span class="lineno"> 679</span> <span class="comment">// Not all Boolean might appear in fixed_search(), so once there is no</span></div>
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<div class="line"><a id="l00680" name="l00680"></a><span class="lineno"> 680</span> <span class="comment">// decision left, we fix all Booleans that are still undecided.</span></div>
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|
<div class="line"><a id="l00681" name="l00681"></a><span class="lineno"> 681</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a> = {<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2acd1aef8e418e20032fd893668c04a6">SequentialSearch</a>(</div>
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<div class="line"><a id="l00682" name="l00682"></a><span class="lineno"> 682</span> {heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a984249b5c2efe8f16e6942b54be739a5">fixed_search</a>, <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a8f18cefafff72d70f6e96ed3f2ef84aa">SatSolverHeuristic</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)})};</div>
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|
<div class="line"><a id="l00683" name="l00683"></a><span class="lineno"> 683</span> </div>
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<div class="line"><a id="l00684" name="l00684"></a><span class="lineno"> 684</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>.randomize_search()) {</div>
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<div class="line"><a id="l00685" name="l00685"></a><span class="lineno"> 685</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">restart_policies</a> = {<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a527a6ee26b7f573def70daf9b2a9e577">SatSolverRestartPolicy</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)};</div>
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|
<div class="line"><a id="l00686" name="l00686"></a><span class="lineno"> 686</span> <span class="keywordflow">return</span>;</div>
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|
<div class="line"><a id="l00687" name="l00687"></a><span class="lineno"> 687</span> }</div>
|
|
<div class="line"><a id="l00688" name="l00688"></a><span class="lineno"> 688</span> </div>
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|
<div class="line"><a id="l00689" name="l00689"></a><span class="lineno"> 689</span> <span class="comment">// TODO(user): We might want to restart if external info is available.</span></div>
|
|
<div class="line"><a id="l00690" name="l00690"></a><span class="lineno"> 690</span> <span class="comment">// Code a custom restart for this?</span></div>
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|
<div class="line"><a id="l00691" name="l00691"></a><span class="lineno"> 691</span> <span class="keyword">auto</span> no_restart = []() { <span class="keywordflow">return</span> <span class="keyword">false</span>; };</div>
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|
<div class="line"><a id="l00692" name="l00692"></a><span class="lineno"> 692</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">restart_policies</a> = {no_restart};</div>
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|
<div class="line"><a id="l00693" name="l00693"></a><span class="lineno"> 693</span> <span class="keywordflow">return</span>;</div>
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|
<div class="line"><a id="l00694" name="l00694"></a><span class="lineno"> 694</span> }</div>
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|
<div class="line"><a id="l00695" name="l00695"></a><span class="lineno"> 695</span> <span class="keywordflow">case</span> SatParameters::HINT_SEARCH: {</div>
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|
<div class="line"><a id="l00696" name="l00696"></a><span class="lineno"> 696</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a3ef187fb1a44e4df4e66c2a59304000e">hint_search</a> != <span class="keyword">nullptr</span>);</div>
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|
<div class="line"><a id="l00697" name="l00697"></a><span class="lineno"> 697</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a> = {</div>
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|
<div class="line"><a id="l00698" name="l00698"></a><span class="lineno"> 698</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2acd1aef8e418e20032fd893668c04a6">SequentialSearch</a>({heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a3ef187fb1a44e4df4e66c2a59304000e">hint_search</a>, <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a8f18cefafff72d70f6e96ed3f2ef84aa">SatSolverHeuristic</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>),</div>
|
|
<div class="line"><a id="l00699" name="l00699"></a><span class="lineno"> 699</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a984249b5c2efe8f16e6942b54be739a5">fixed_search</a>})};</div>
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|
<div class="line"><a id="l00700" name="l00700"></a><span class="lineno"> 700</span> <span class="keyword">auto</span> no_restart = []() { <span class="keywordflow">return</span> <span class="keyword">false</span>; };</div>
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|
<div class="line"><a id="l00701" name="l00701"></a><span class="lineno"> 701</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">restart_policies</a> = {no_restart};</div>
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|
<div class="line"><a id="l00702" name="l00702"></a><span class="lineno"> 702</span> <span class="keywordflow">return</span>;</div>
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|
<div class="line"><a id="l00703" name="l00703"></a><span class="lineno"> 703</span> }</div>
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|
<div class="line"><a id="l00704" name="l00704"></a><span class="lineno"> 704</span> <span class="keywordflow">case</span> SatParameters::PORTFOLIO_SEARCH: {</div>
|
|
<div class="line"><a id="l00705" name="l00705"></a><span class="lineno"> 705</span> <span class="comment">// TODO(user): This is not used in any of our default config. remove?</span></div>
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|
<div class="line"><a id="l00706" name="l00706"></a><span class="lineno"> 706</span> <span class="comment">// It make also no sense to choose a value in the LP heuristic and then</span></div>
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|
<div class="line"><a id="l00707" name="l00707"></a><span class="lineno"> 707</span> <span class="comment">// override it with IntegerValueSelectionHeuristic(), clean that up.</span></div>
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|
<div class="line"><a id="l00708" name="l00708"></a><span class="lineno"> 708</span> std::vector<std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()>> base_heuristics;</div>
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|
<div class="line"><a id="l00709" name="l00709"></a><span class="lineno"> 709</span> base_heuristics.push_back(heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a984249b5c2efe8f16e6942b54be739a5">fixed_search</a>);</div>
|
|
<div class="line"><a id="l00710" name="l00710"></a><span class="lineno"> 710</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> :</div>
|
|
<div class="line"><a id="l00711" name="l00711"></a><span class="lineno"> 711</span> *(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_programming_constraint_collection.html">LinearProgrammingConstraintCollection</a>>())) {</div>
|
|
<div class="line"><a id="l00712" name="l00712"></a><span class="lineno"> 712</span> base_heuristics.push_back(WrapIntegerLiteralHeuristic(</div>
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|
<div class="line"><a id="l00713" name="l00713"></a><span class="lineno"> 713</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->HeuristicLpReducedCostBinary(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)));</div>
|
|
<div class="line"><a id="l00714" name="l00714"></a><span class="lineno"> 714</span> base_heuristics.push_back(WrapIntegerLiteralHeuristic(</div>
|
|
<div class="line"><a id="l00715" name="l00715"></a><span class="lineno"> 715</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->HeuristicLpMostInfeasibleBinary(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)));</div>
|
|
<div class="line"><a id="l00716" name="l00716"></a><span class="lineno"> 716</span> }</div>
|
|
<div class="line"><a id="l00717" name="l00717"></a><span class="lineno"> 717</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a> = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a04f971e1062428f1b552f1f6295da939">CompleteHeuristics</a>(</div>
|
|
<div class="line"><a id="l00718" name="l00718"></a><span class="lineno"> 718</span> base_heuristics, <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2acd1aef8e418e20032fd893668c04a6">SequentialSearch</a>({<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a8f18cefafff72d70f6e96ed3f2ef84aa">SatSolverHeuristic</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>),</div>
|
|
<div class="line"><a id="l00719" name="l00719"></a><span class="lineno"> 719</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a984249b5c2efe8f16e6942b54be739a5">fixed_search</a>}));</div>
|
|
<div class="line"><a id="l00720" name="l00720"></a><span class="lineno"> 720</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span>& ref : heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a>) {</div>
|
|
<div class="line"><a id="l00721" name="l00721"></a><span class="lineno"> 721</span> ref = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a88ab44e20ce09e9942f6b8411452df27">IntegerValueSelectionHeuristic</a>(ref, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
|
|
<div class="line"><a id="l00722" name="l00722"></a><span class="lineno"> 722</span> }</div>
|
|
<div class="line"><a id="l00723" name="l00723"></a><span class="lineno"> 723</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">restart_policies</a>.assign(heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a>.size(),</div>
|
|
<div class="line"><a id="l00724" name="l00724"></a><span class="lineno"> 724</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a527a6ee26b7f573def70daf9b2a9e577">SatSolverRestartPolicy</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>));</div>
|
|
<div class="line"><a id="l00725" name="l00725"></a><span class="lineno"> 725</span> <span class="keywordflow">return</span>;</div>
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|
<div class="line"><a id="l00726" name="l00726"></a><span class="lineno"> 726</span> }</div>
|
|
<div class="line"><a id="l00727" name="l00727"></a><span class="lineno"> 727</span> <span class="keywordflow">case</span> SatParameters::LP_SEARCH: {</div>
|
|
<div class="line"><a id="l00728" name="l00728"></a><span class="lineno"> 728</span> std::vector<std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()>> lp_heuristics;</div>
|
|
<div class="line"><a id="l00729" name="l00729"></a><span class="lineno"> 729</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> :</div>
|
|
<div class="line"><a id="l00730" name="l00730"></a><span class="lineno"> 730</span> *(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_programming_constraint_collection.html">LinearProgrammingConstraintCollection</a>>())) {</div>
|
|
<div class="line"><a id="l00731" name="l00731"></a><span class="lineno"> 731</span> lp_heuristics.push_back(WrapIntegerLiteralHeuristic(</div>
|
|
<div class="line"><a id="l00732" name="l00732"></a><span class="lineno"> 732</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->HeuristicLpReducedCostAverageBranching()));</div>
|
|
<div class="line"><a id="l00733" name="l00733"></a><span class="lineno"> 733</span> }</div>
|
|
<div class="line"><a id="l00734" name="l00734"></a><span class="lineno"> 734</span> <span class="keywordflow">if</span> (lp_heuristics.empty()) { <span class="comment">// Revert to fixed search.</span></div>
|
|
<div class="line"><a id="l00735" name="l00735"></a><span class="lineno"> 735</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a> = {<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2acd1aef8e418e20032fd893668c04a6">SequentialSearch</a>(</div>
|
|
<div class="line"><a id="l00736" name="l00736"></a><span class="lineno"> 736</span> {heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a984249b5c2efe8f16e6942b54be739a5">fixed_search</a>, <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a8f18cefafff72d70f6e96ed3f2ef84aa">SatSolverHeuristic</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)})},</div>
|
|
<div class="line"><a id="l00737" name="l00737"></a><span class="lineno"> 737</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">restart_policies</a> = {<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a527a6ee26b7f573def70daf9b2a9e577">SatSolverRestartPolicy</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)};</div>
|
|
<div class="line"><a id="l00738" name="l00738"></a><span class="lineno"> 738</span> <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a id="l00739" name="l00739"></a><span class="lineno"> 739</span> }</div>
|
|
<div class="line"><a id="l00740" name="l00740"></a><span class="lineno"> 740</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a> = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a04f971e1062428f1b552f1f6295da939">CompleteHeuristics</a>(</div>
|
|
<div class="line"><a id="l00741" name="l00741"></a><span class="lineno"> 741</span> lp_heuristics, <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2acd1aef8e418e20032fd893668c04a6">SequentialSearch</a>({<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a8f18cefafff72d70f6e96ed3f2ef84aa">SatSolverHeuristic</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>),</div>
|
|
<div class="line"><a id="l00742" name="l00742"></a><span class="lineno"> 742</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a984249b5c2efe8f16e6942b54be739a5">fixed_search</a>}));</div>
|
|
<div class="line"><a id="l00743" name="l00743"></a><span class="lineno"> 743</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">restart_policies</a>.assign(heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a>.size(),</div>
|
|
<div class="line"><a id="l00744" name="l00744"></a><span class="lineno"> 744</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a527a6ee26b7f573def70daf9b2a9e577">SatSolverRestartPolicy</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>));</div>
|
|
<div class="line"><a id="l00745" name="l00745"></a><span class="lineno"> 745</span> <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a id="l00746" name="l00746"></a><span class="lineno"> 746</span> }</div>
|
|
<div class="line"><a id="l00747" name="l00747"></a><span class="lineno"> 747</span> <span class="keywordflow">case</span> SatParameters::PSEUDO_COST_SEARCH: {</div>
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|
<div class="line"><a id="l00748" name="l00748"></a><span class="lineno"> 748</span> std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> search =</div>
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|
<div class="line"><a id="l00749" name="l00749"></a><span class="lineno"> 749</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2acd1aef8e418e20032fd893668c04a6">SequentialSearch</a>({<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aefab46ecc02eb059ed853ee0213be7fb">PseudoCost</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>), <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a8f18cefafff72d70f6e96ed3f2ef84aa">SatSolverHeuristic</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>),</div>
|
|
<div class="line"><a id="l00750" name="l00750"></a><span class="lineno"> 750</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a984249b5c2efe8f16e6942b54be739a5">fixed_search</a>});</div>
|
|
<div class="line"><a id="l00751" name="l00751"></a><span class="lineno"> 751</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a> = {</div>
|
|
<div class="line"><a id="l00752" name="l00752"></a><span class="lineno"> 752</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a88ab44e20ce09e9942f6b8411452df27">IntegerValueSelectionHeuristic</a>(search, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)};</div>
|
|
<div class="line"><a id="l00753" name="l00753"></a><span class="lineno"> 753</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">restart_policies</a> = {<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a527a6ee26b7f573def70daf9b2a9e577">SatSolverRestartPolicy</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)};</div>
|
|
<div class="line"><a id="l00754" name="l00754"></a><span class="lineno"> 754</span> <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a id="l00755" name="l00755"></a><span class="lineno"> 755</span> }</div>
|
|
<div class="line"><a id="l00756" name="l00756"></a><span class="lineno"> 756</span> <span class="keywordflow">case</span> SatParameters::PORTFOLIO_WITH_QUICK_RESTART_SEARCH: {</div>
|
|
<div class="line"><a id="l00757" name="l00757"></a><span class="lineno"> 757</span> std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> search = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2acd1aef8e418e20032fd893668c04a6">SequentialSearch</a>(</div>
|
|
<div class="line"><a id="l00758" name="l00758"></a><span class="lineno"> 758</span> {<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#af7f519865479d23c58e76b1fe416a2f1">RandomizeOnRestartHeuristic</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>), heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a984249b5c2efe8f16e6942b54be739a5">fixed_search</a>});</div>
|
|
<div class="line"><a id="l00759" name="l00759"></a><span class="lineno"> 759</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a> = {search};</div>
|
|
<div class="line"><a id="l00760" name="l00760"></a><span class="lineno"> 760</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">restart_policies</a> = {</div>
|
|
<div class="line"><a id="l00761" name="l00761"></a><span class="lineno"> 761</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a5fcdf1d56a24d096d0c381a9708d4fa9">RestartEveryKFailures</a>(10, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>>())};</div>
|
|
<div class="line"><a id="l00762" name="l00762"></a><span class="lineno"> 762</span> <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a id="l00763" name="l00763"></a><span class="lineno"> 763</span> }</div>
|
|
<div class="line"><a id="l00764" name="l00764"></a><span class="lineno"> 764</span> }</div>
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<div class="line"><a id="l00765" name="l00765"></a><span class="lineno"> 765</span>}</div>
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<div class="line"><a id="l00766" name="l00766"></a><span class="lineno"> 766</span> </div>
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<div class="line"><a id="l00767" name="l00767"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a04f971e1062428f1b552f1f6295da939"> 767</a></span>std::vector<std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()>> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a04f971e1062428f1b552f1f6295da939">CompleteHeuristics</a>(</div>
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<div class="line"><a id="l00768" name="l00768"></a><span class="lineno"> 768</span> <span class="keyword">const</span> std::vector<std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()>>&</div>
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<div class="line"><a id="l00769" name="l00769"></a><span class="lineno"> 769</span> incomplete_heuristics,</div>
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<div class="line"><a id="l00770" name="l00770"></a><span class="lineno"> 770</span> <span class="keyword">const</span> std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()>& completion_heuristic) {</div>
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<div class="line"><a id="l00771" name="l00771"></a><span class="lineno"> 771</span> std::vector<std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()>> complete_heuristics;</div>
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|
<div class="line"><a id="l00772" name="l00772"></a><span class="lineno"> 772</span> complete_heuristics.reserve(incomplete_heuristics.size());</div>
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<div class="line"><a id="l00773" name="l00773"></a><span class="lineno"> 773</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& incomplete : incomplete_heuristics) {</div>
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<div class="line"><a id="l00774" name="l00774"></a><span class="lineno"> 774</span> complete_heuristics.push_back(</div>
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<div class="line"><a id="l00775" name="l00775"></a><span class="lineno"> 775</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2acd1aef8e418e20032fd893668c04a6">SequentialSearch</a>({incomplete, completion_heuristic}));</div>
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|
<div class="line"><a id="l00776" name="l00776"></a><span class="lineno"> 776</span> }</div>
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<div class="line"><a id="l00777" name="l00777"></a><span class="lineno"> 777</span> <span class="keywordflow">return</span> complete_heuristics;</div>
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<div class="line"><a id="l00778" name="l00778"></a><span class="lineno"> 778</span>}</div>
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<div class="line"><a id="l00779" name="l00779"></a><span class="lineno"> 779</span> </div>
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<div class="line"><a id="l00780" name="l00780"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_integer_search_helper.html#a3da0daf61b8c11b7503a7d8f49e964d8"> 780</a></span><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_search_helper.html#a3da0daf61b8c11b7503a7d8f49e964d8">IntegerSearchHelper::IntegerSearchHelper</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)</div>
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|
<div class="line"><a id="l00781" name="l00781"></a><span class="lineno"> 781</span> : model_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>),</div>
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<div class="line"><a id="l00782" name="l00782"></a><span class="lineno"> 782</span> sat_solver_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>>()),</div>
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<div class="line"><a id="l00783" name="l00783"></a><span class="lineno"> 783</span> integer_trail_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>>()),</div>
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|
<div class="line"><a id="l00784" name="l00784"></a><span class="lineno"> 784</span> encoder_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_encoder.html">IntegerEncoder</a>>()),</div>
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|
<div class="line"><a id="l00785" name="l00785"></a><span class="lineno"> 785</span> implied_bounds_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_implied_bounds.html">ImpliedBounds</a>>()),</div>
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<div class="line"><a id="l00786" name="l00786"></a><span class="lineno"> 786</span> time_limit_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1_time_limit.html">TimeLimit</a>>()),</div>
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|
<div class="line"><a id="l00787" name="l00787"></a><span class="lineno"> 787</span> pseudo_costs_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_pseudo_costs.html">PseudoCosts</a>>()) {</div>
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|
<div class="line"><a id="l00788" name="l00788"></a><span class="lineno"> 788</span> <span class="comment">// This is needed for recording the pseudo-costs.</span></div>
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|
<div class="line"><a id="l00789" name="l00789"></a><span class="lineno"> 789</span> <span class="keyword">const</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_objective_definition.html">ObjectiveDefinition</a>* objective = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Get<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_objective_definition.html">ObjectiveDefinition</a>>();</div>
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|
<div class="line"><a id="l00790" name="l00790"></a><span class="lineno"> 790</span> <span class="keywordflow">if</span> (objective != <span class="keyword">nullptr</span>) objective_var_ = objective-><a class="code hl_variable" href="structoperations__research_1_1sat_1_1_objective_definition.html#aa3c0b31567c91babfffd5f9afc3161dc">objective_var</a>;</div>
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|
<div class="line"><a id="l00791" name="l00791"></a><span class="lineno"> 791</span>}</div>
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|
<div class="line"><a id="l00792" name="l00792"></a><span class="lineno"> 792</span> </div>
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|
<div class="line"><a id="l00793" name="l00793"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_integer_search_helper.html#a918e2c1a7965a933b914ceaceb847a0c"> 793</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_search_helper.html#a918e2c1a7965a933b914ceaceb847a0c">IntegerSearchHelper::BeforeTakingDecision</a>() {</div>
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|
<div class="line"><a id="l00794" name="l00794"></a><span class="lineno"> 794</span> <span class="comment">// If we pushed root level deductions, we restart to incorporate them.</span></div>
|
|
<div class="line"><a id="l00795" name="l00795"></a><span class="lineno"> 795</span> <span class="comment">// Note that in the present of assumptions, it is important to return to</span></div>
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|
<div class="line"><a id="l00796" name="l00796"></a><span class="lineno"> 796</span> <span class="comment">// the level zero first ! otherwise, the new deductions will not be</span></div>
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|
<div class="line"><a id="l00797" name="l00797"></a><span class="lineno"> 797</span> <span class="comment">// incorporated and the solver will loop forever.</span></div>
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|
<div class="line"><a id="l00798" name="l00798"></a><span class="lineno"> 798</span> <span class="keywordflow">if</span> (integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#ac4fc75eea42e935951c766549cf8aa3c">HasPendingRootLevelDeduction</a>()) {</div>
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|
<div class="line"><a id="l00799" name="l00799"></a><span class="lineno"> 799</span> sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ac035378cea0ed7b0978105547402faa8">Backtrack</a>(0);</div>
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|
<div class="line"><a id="l00800" name="l00800"></a><span class="lineno"> 800</span> <span class="keywordflow">if</span> (!sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ac714aeb75f0f6dd87e52e5d1a0d6edc7">RestoreSolverToAssumptionLevel</a>()) {</div>
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|
<div class="line"><a id="l00801" name="l00801"></a><span class="lineno"> 801</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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|
<div class="line"><a id="l00802" name="l00802"></a><span class="lineno"> 802</span> }</div>
|
|
<div class="line"><a id="l00803" name="l00803"></a><span class="lineno"> 803</span> }</div>
|
|
<div class="line"><a id="l00804" name="l00804"></a><span class="lineno"> 804</span> </div>
|
|
<div class="line"><a id="l00805" name="l00805"></a><span class="lineno"> 805</span> <span class="keywordflow">if</span> (sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ad63c4461a1384629cb99413c6df8b9ca">CurrentDecisionLevel</a>() == 0) {</div>
|
|
<div class="line"><a id="l00806" name="l00806"></a><span class="lineno"> 806</span> <span class="keywordflow">if</span> (!implied_bounds_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_implied_bounds.html#a0e2d0bf17ef8f8ea329a2faec4583377">EnqueueNewDeductions</a>()) {</div>
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|
<div class="line"><a id="l00807" name="l00807"></a><span class="lineno"> 807</span> sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a4f7251fc4692363cf55796a6f3e267ea">NotifyThatModelIsUnsat</a>();</div>
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|
<div class="line"><a id="l00808" name="l00808"></a><span class="lineno"> 808</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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|
<div class="line"><a id="l00809" name="l00809"></a><span class="lineno"> 809</span> }</div>
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|
<div class="line"><a id="l00810" name="l00810"></a><span class="lineno"> 810</span> </div>
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|
<div class="line"><a id="l00811" name="l00811"></a><span class="lineno"> 811</span> <span class="keyword">auto</span>* level_zero_callbacks = model_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_model.html#afb0c03e2a6201677c266f8a7eb77c2dc">GetOrCreate</a><<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_level_zero_callback_helper.html">LevelZeroCallbackHelper</a>>();</div>
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|
<div class="line"><a id="l00812" name="l00812"></a><span class="lineno"> 812</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& cb : level_zero_callbacks->callbacks) {</div>
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|
<div class="line"><a id="l00813" name="l00813"></a><span class="lineno"> 813</span> <span class="keywordflow">if</span> (!cb()) {</div>
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|
<div class="line"><a id="l00814" name="l00814"></a><span class="lineno"> 814</span> sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a4f7251fc4692363cf55796a6f3e267ea">NotifyThatModelIsUnsat</a>();</div>
|
|
<div class="line"><a id="l00815" name="l00815"></a><span class="lineno"> 815</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00816" name="l00816"></a><span class="lineno"> 816</span> }</div>
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|
<div class="line"><a id="l00817" name="l00817"></a><span class="lineno"> 817</span> }</div>
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|
<div class="line"><a id="l00818" name="l00818"></a><span class="lineno"> 818</span> </div>
|
|
<div class="line"><a id="l00819" name="l00819"></a><span class="lineno"> 819</span> <span class="keywordflow">if</span> (model_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_model.html#afb0c03e2a6201677c266f8a7eb77c2dc">GetOrCreate</a><SatParameters>()->use_sat_inprocessing() &&</div>
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|
<div class="line"><a id="l00820" name="l00820"></a><span class="lineno"> 820</span> !model_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_model.html#afb0c03e2a6201677c266f8a7eb77c2dc">GetOrCreate</a><<a class="code hl_class" href="classoperations__research_1_1sat_1_1_inprocessing.html">Inprocessing</a>>()->InprocessingRound()) {</div>
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|
<div class="line"><a id="l00821" name="l00821"></a><span class="lineno"> 821</span> sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a4f7251fc4692363cf55796a6f3e267ea">NotifyThatModelIsUnsat</a>();</div>
|
|
<div class="line"><a id="l00822" name="l00822"></a><span class="lineno"> 822</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00823" name="l00823"></a><span class="lineno"> 823</span> }</div>
|
|
<div class="line"><a id="l00824" name="l00824"></a><span class="lineno"> 824</span> }</div>
|
|
<div class="line"><a id="l00825" name="l00825"></a><span class="lineno"> 825</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00826" name="l00826"></a><span class="lineno"> 826</span>}</div>
|
|
<div class="line"><a id="l00827" name="l00827"></a><span class="lineno"> 827</span> </div>
|
|
<div class="line"><a id="l00828" name="l00828"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_integer_search_helper.html#ab47c89fedb27c73cf9ab768b913d1dfe"> 828</a></span>LiteralIndex <a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_search_helper.html#ab47c89fedb27c73cf9ab768b913d1dfe">IntegerSearchHelper::GetDecision</a>(</div>
|
|
<div class="line"><a id="l00829" name="l00829"></a><span class="lineno"> 829</span> <span class="keyword">const</span> std::function<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()>& f) {</div>
|
|
<div class="line"><a id="l00830" name="l00830"></a><span class="lineno"> 830</span> LiteralIndex decision = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>;</div>
|
|
<div class="line"><a id="l00831" name="l00831"></a><span class="lineno"> 831</span> <span class="keywordflow">while</span> (!time_limit_-><a class="code hl_function" href="classoperations__research_1_1_time_limit.html#a810d5f7aaf80cc09cf5a094e20c1aaca">LimitReached</a>()) {</div>
|
|
<div class="line"><a id="l00832" name="l00832"></a><span class="lineno"> 832</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a> new_decision;</div>
|
|
<div class="line"><a id="l00833" name="l00833"></a><span class="lineno"> 833</span> <span class="keywordflow">if</span> (integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a697964c4df6330b5d4720be3658ac35a">InPropagationLoop</a>()) {</div>
|
|
<div class="line"><a id="l00834" name="l00834"></a><span class="lineno"> 834</span> <span class="keyword">const</span> IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> =</div>
|
|
<div class="line"><a id="l00835" name="l00835"></a><span class="lineno"> 835</span> integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a8ae8e206270e3bb10251a6fadbdc06e7">NextVariableToBranchOnInPropagationLoop</a>();</div>
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|
<div class="line"><a id="l00836" name="l00836"></a><span class="lineno"> 836</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06">kNoIntegerVariable</a>) {</div>
|
|
<div class="line"><a id="l00837" name="l00837"></a><span class="lineno"> 837</span> new_decision.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#aee356429e37f0750e38ee17ae1464a00">integer_literal</a> =</div>
|
|
<div class="line"><a id="l00838" name="l00838"></a><span class="lineno"> 838</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a3f4df9da99787316bfb5029b7a6b92b7">GreaterOrEqualToMiddleValue</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, integer_trail_);</div>
|
|
<div class="line"><a id="l00839" name="l00839"></a><span class="lineno"> 839</span> }</div>
|
|
<div class="line"><a id="l00840" name="l00840"></a><span class="lineno"> 840</span> }</div>
|
|
<div class="line"><a id="l00841" name="l00841"></a><span class="lineno"> 841</span> <span class="keywordflow">if</span> (!new_decision.<a class="code hl_function" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#ae26b73bbf70dc88433be39df364ca7c1">HasValue</a>()) {</div>
|
|
<div class="line"><a id="l00842" name="l00842"></a><span class="lineno"> 842</span> new_decision = f();</div>
|
|
<div class="line"><a id="l00843" name="l00843"></a><span class="lineno"> 843</span> }</div>
|
|
<div class="line"><a id="l00844" name="l00844"></a><span class="lineno"> 844</span> <span class="keywordflow">if</span> (!new_decision.<a class="code hl_function" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#ae26b73bbf70dc88433be39df364ca7c1">HasValue</a>() &&</div>
|
|
<div class="line"><a id="l00845" name="l00845"></a><span class="lineno"> 845</span> integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a6554c3addb8705b1ba60140a175de110">CurrentBranchHadAnIncompletePropagation</a>()) {</div>
|
|
<div class="line"><a id="l00846" name="l00846"></a><span class="lineno"> 846</span> <span class="keyword">const</span> IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a05cc8990d6a349e0c5960019ee47b687">FirstUnassignedVariable</a>();</div>
|
|
<div class="line"><a id="l00847" name="l00847"></a><span class="lineno"> 847</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06">kNoIntegerVariable</a>) {</div>
|
|
<div class="line"><a id="l00848" name="l00848"></a><span class="lineno"> 848</span> new_decision.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#aee356429e37f0750e38ee17ae1464a00">integer_literal</a> = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a304417ca7c3964cc928b771620b2dc53">AtMinValue</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, integer_trail_);</div>
|
|
<div class="line"><a id="l00849" name="l00849"></a><span class="lineno"> 849</span> }</div>
|
|
<div class="line"><a id="l00850" name="l00850"></a><span class="lineno"> 850</span> }</div>
|
|
<div class="line"><a id="l00851" name="l00851"></a><span class="lineno"> 851</span> <span class="keywordflow">if</span> (!new_decision.<a class="code hl_function" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#ae26b73bbf70dc88433be39df364ca7c1">HasValue</a>()) <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00852" name="l00852"></a><span class="lineno"> 852</span> </div>
|
|
<div class="line"><a id="l00853" name="l00853"></a><span class="lineno"> 853</span> <span class="comment">// Convert integer decision to literal one if needed.</span></div>
|
|
<div class="line"><a id="l00854" name="l00854"></a><span class="lineno"> 854</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00855" name="l00855"></a><span class="lineno"> 855</span> <span class="comment">// TODO(user): Ideally it would be cool to delay the creation even more</span></div>
|
|
<div class="line"><a id="l00856" name="l00856"></a><span class="lineno"> 856</span> <span class="comment">// until we have a conflict with these decisions, but it is currrently</span></div>
|
|
<div class="line"><a id="l00857" name="l00857"></a><span class="lineno"> 857</span> <span class="comment">// hard to do so.</span></div>
|
|
<div class="line"><a id="l00858" name="l00858"></a><span class="lineno"> 858</span> <span class="keywordflow">if</span> (new_decision.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a3c6f3ae96a90c7fcef34dd0f1ce0297e">boolean_literal_index</a> != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>) {</div>
|
|
<div class="line"><a id="l00859" name="l00859"></a><span class="lineno"> 859</span> decision = new_decision.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a3c6f3ae96a90c7fcef34dd0f1ce0297e">boolean_literal_index</a>;</div>
|
|
<div class="line"><a id="l00860" name="l00860"></a><span class="lineno"> 860</span> } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a id="l00861" name="l00861"></a><span class="lineno"> 861</span> decision =</div>
|
|
<div class="line"><a id="l00862" name="l00862"></a><span class="lineno"> 862</span> encoder_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_encoder.html#afcd4038298bec97a2f7a61274c6ef8c7">GetOrCreateAssociatedLiteral</a>(new_decision.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#aee356429e37f0750e38ee17ae1464a00">integer_literal</a>)</div>
|
|
<div class="line"><a id="l00863" name="l00863"></a><span class="lineno"> 863</span> .<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a4a11c7c4d7706c09de5e18707c3b5c62">Index</a>();</div>
|
|
<div class="line"><a id="l00864" name="l00864"></a><span class="lineno"> 864</span> }</div>
|
|
<div class="line"><a id="l00865" name="l00865"></a><span class="lineno"> 865</span> <span class="keywordflow">if</span> (sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a4793952607a98dfddfbcc17abfabbb4b">Assignment</a>().<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#a142694366986039454f53b38e8378815">LiteralIsAssigned</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(decision))) {</div>
|
|
<div class="line"><a id="l00866" name="l00866"></a><span class="lineno"> 866</span> <span class="comment">// TODO(user): It would be nicer if this can never happen. For now, it</span></div>
|
|
<div class="line"><a id="l00867" name="l00867"></a><span class="lineno"> 867</span> <span class="comment">// does because of the Propagate() not reaching the fixed point as</span></div>
|
|
<div class="line"><a id="l00868" name="l00868"></a><span class="lineno"> 868</span> <span class="comment">// mentionned in a TODO above. As a work-around, we display a message</span></div>
|
|
<div class="line"><a id="l00869" name="l00869"></a><span class="lineno"> 869</span> <span class="comment">// but do not crash and recall the decision heuristic.</span></div>
|
|
<div class="line"><a id="l00870" name="l00870"></a><span class="lineno"> 870</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(1) << <span class="stringliteral">"Trying to take a decision that is already assigned!"</span></div>
|
|
<div class="line"><a id="l00871" name="l00871"></a><span class="lineno"> 871</span> << <span class="stringliteral">" Fix this. Continuing for now..."</span>;</div>
|
|
<div class="line"><a id="l00872" name="l00872"></a><span class="lineno"> 872</span> <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a id="l00873" name="l00873"></a><span class="lineno"> 873</span> }</div>
|
|
<div class="line"><a id="l00874" name="l00874"></a><span class="lineno"> 874</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00875" name="l00875"></a><span class="lineno"> 875</span> }</div>
|
|
<div class="line"><a id="l00876" name="l00876"></a><span class="lineno"> 876</span> <span class="keywordflow">return</span> decision;</div>
|
|
<div class="line"><a id="l00877" name="l00877"></a><span class="lineno"> 877</span>}</div>
|
|
<div class="line"><a id="l00878" name="l00878"></a><span class="lineno"> 878</span> </div>
|
|
<div class="line"><a id="l00879" name="l00879"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_integer_search_helper.html#aaad5f63041d2eb2fee1a5b6d1cac8424"> 879</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_search_helper.html#aaad5f63041d2eb2fee1a5b6d1cac8424">IntegerSearchHelper::TakeDecision</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a> decision) {</div>
|
|
<div class="line"><a id="l00880" name="l00880"></a><span class="lineno"> 880</span> <span class="comment">// Record the changelist and objective bounds for updating pseudo costs.</span></div>
|
|
<div class="line"><a id="l00881" name="l00881"></a><span class="lineno"> 881</span> <span class="keyword">const</span> std::vector<PseudoCosts::VariableBoundChange> bound_changes =</div>
|
|
<div class="line"><a id="l00882" name="l00882"></a><span class="lineno"> 882</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a98bb3bb08c5a9f5c119cf0973bbe5cf8">GetBoundChanges</a>(decision.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a4a11c7c4d7706c09de5e18707c3b5c62">Index</a>(), model_);</div>
|
|
<div class="line"><a id="l00883" name="l00883"></a><span class="lineno"> 883</span> IntegerValue old_obj_lb = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a5316808a2d5007c3b489e844801385e5">kMinIntegerValue</a>;</div>
|
|
<div class="line"><a id="l00884" name="l00884"></a><span class="lineno"> 884</span> IntegerValue old_obj_ub = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1227e67513602591fb959e35c9de66e8">kMaxIntegerValue</a>;</div>
|
|
<div class="line"><a id="l00885" name="l00885"></a><span class="lineno"> 885</span> <span class="keywordflow">if</span> (objective_var_ != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06">kNoIntegerVariable</a>) {</div>
|
|
<div class="line"><a id="l00886" name="l00886"></a><span class="lineno"> 886</span> old_obj_lb = integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9">LowerBound</a>(objective_var_);</div>
|
|
<div class="line"><a id="l00887" name="l00887"></a><span class="lineno"> 887</span> old_obj_ub = integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac">UpperBound</a>(objective_var_);</div>
|
|
<div class="line"><a id="l00888" name="l00888"></a><span class="lineno"> 888</span> }</div>
|
|
<div class="line"><a id="l00889" name="l00889"></a><span class="lineno"> 889</span> <span class="keyword">const</span> <span class="keywordtype">int</span> old_level = sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ad63c4461a1384629cb99413c6df8b9ca">CurrentDecisionLevel</a>();</div>
|
|
<div class="line"><a id="l00890" name="l00890"></a><span class="lineno"> 890</span> </div>
|
|
<div class="line"><a id="l00891" name="l00891"></a><span class="lineno"> 891</span> <span class="comment">// Note that kUnsatTrailIndex might also mean ASSUMPTIONS_UNSAT.</span></div>
|
|
<div class="line"><a id="l00892" name="l00892"></a><span class="lineno"> 892</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00893" name="l00893"></a><span class="lineno"> 893</span> <span class="comment">// TODO(user): on some problems, this function can be quite long. Expand</span></div>
|
|
<div class="line"><a id="l00894" name="l00894"></a><span class="lineno"> 894</span> <span class="comment">// so that we can check the time limit at each step?</span></div>
|
|
<div class="line"><a id="l00895" name="l00895"></a><span class="lineno"> 895</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> = sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a9ae69b015a43c1a94e8815ab0dd8189c">EnqueueDecisionAndBackjumpOnConflict</a>(decision);</div>
|
|
<div class="line"><a id="l00896" name="l00896"></a><span class="lineno"> 896</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> == <a class="code hl_variable" href="namespaceoperations__research_1_1sat.html#aed3a7826cb80e5dfe7cadb141fde73f2">kUnsatTrailIndex</a>) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00897" name="l00897"></a><span class="lineno"> 897</span> </div>
|
|
<div class="line"><a id="l00898" name="l00898"></a><span class="lineno"> 898</span> <span class="comment">// Update the implied bounds each time we enqueue a literal at level zero.</span></div>
|
|
<div class="line"><a id="l00899" name="l00899"></a><span class="lineno"> 899</span> <span class="comment">// This is "almost free", so we might as well do it.</span></div>
|
|
<div class="line"><a id="l00900" name="l00900"></a><span class="lineno"> 900</span> <span class="keywordflow">if</span> (old_level == 0 && sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ad63c4461a1384629cb99413c6df8b9ca">CurrentDecisionLevel</a>() == 1) {</div>
|
|
<div class="line"><a id="l00901" name="l00901"></a><span class="lineno"> 901</span> implied_bounds_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_implied_bounds.html#af55df3ca81000daf46c6096a71778c40">ProcessIntegerTrail</a>(decision);</div>
|
|
<div class="line"><a id="l00902" name="l00902"></a><span class="lineno"> 902</span> }</div>
|
|
<div class="line"><a id="l00903" name="l00903"></a><span class="lineno"> 903</span> </div>
|
|
<div class="line"><a id="l00904" name="l00904"></a><span class="lineno"> 904</span> <span class="comment">// Update the pseudo costs.</span></div>
|
|
<div class="line"><a id="l00905" name="l00905"></a><span class="lineno"> 905</span> <span class="keywordflow">if</span> (sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ad63c4461a1384629cb99413c6df8b9ca">CurrentDecisionLevel</a>() > old_level &&</div>
|
|
<div class="line"><a id="l00906" name="l00906"></a><span class="lineno"> 906</span> objective_var_ != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06">kNoIntegerVariable</a>) {</div>
|
|
<div class="line"><a id="l00907" name="l00907"></a><span class="lineno"> 907</span> <span class="keyword">const</span> IntegerValue new_obj_lb = integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9">LowerBound</a>(objective_var_);</div>
|
|
<div class="line"><a id="l00908" name="l00908"></a><span class="lineno"> 908</span> <span class="keyword">const</span> IntegerValue new_obj_ub = integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac">UpperBound</a>(objective_var_);</div>
|
|
<div class="line"><a id="l00909" name="l00909"></a><span class="lineno"> 909</span> <span class="keyword">const</span> IntegerValue objective_bound_change =</div>
|
|
<div class="line"><a id="l00910" name="l00910"></a><span class="lineno"> 910</span> (new_obj_lb - old_obj_lb) + (old_obj_ub - new_obj_ub);</div>
|
|
<div class="line"><a id="l00911" name="l00911"></a><span class="lineno"> 911</span> pseudo_costs_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_pseudo_costs.html#aa64c6ffef5c1b7402acad774c70bab08">UpdateCost</a>(bound_changes, objective_bound_change);</div>
|
|
<div class="line"><a id="l00912" name="l00912"></a><span class="lineno"> 912</span> }</div>
|
|
<div class="line"><a id="l00913" name="l00913"></a><span class="lineno"> 913</span> </div>
|
|
<div class="line"><a id="l00914" name="l00914"></a><span class="lineno"> 914</span> sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a705eddd5baee23097daf34b73e66eae3">AdvanceDeterministicTime</a>(time_limit_);</div>
|
|
<div class="line"><a id="l00915" name="l00915"></a><span class="lineno"> 915</span> <span class="keywordflow">return</span> sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ad28cbdd5735a0c111a642f39524d969e">ReapplyAssumptionsIfNeeded</a>();</div>
|
|
<div class="line"><a id="l00916" name="l00916"></a><span class="lineno"> 916</span>}</div>
|
|
<div class="line"><a id="l00917" name="l00917"></a><span class="lineno"> 917</span> </div>
|
|
<div class="line"><a id="l00918" name="l00918"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a8bea9a6a0de60c8fdab99ad7dfdf8498"> 918</a></span><a class="code hl_enumeration" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">SatSolver::Status</a> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a8bea9a6a0de60c8fdab99ad7dfdf8498">SolveIntegerProblem</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
|
|
<div class="line"><a id="l00919" name="l00919"></a><span class="lineno"> 919</span> <a class="code hl_class" href="classoperations__research_1_1_time_limit.html">TimeLimit</a>* <a class="code hl_variable" href="cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21">time_limit</a> = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1_time_limit.html">TimeLimit</a>>();</div>
|
|
<div class="line"><a id="l00920" name="l00920"></a><span class="lineno"> 920</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21">time_limit</a>-><a class="code hl_function" href="classoperations__research_1_1_shared_time_limit.html#ad837e6231722ead53bbaf1c6e8f66032">LimitReached</a>()) <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba72c2402449caa8f3edc8aa0a3816baed">SatSolver::LIMIT_REACHED</a>;</div>
|
|
<div class="line"><a id="l00921" name="l00921"></a><span class="lineno"> 921</span> </div>
|
|
<div class="line"><a id="l00922" name="l00922"></a><span class="lineno"> 922</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_search_heuristics.html">SearchHeuristics</a>& heuristics = *<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_search_heuristics.html">SearchHeuristics</a>>();</div>
|
|
<div class="line"><a id="l00923" name="l00923"></a><span class="lineno"> 923</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_policies = heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a>.size();</div>
|
|
<div class="line"><a id="l00924" name="l00924"></a><span class="lineno"> 924</span> <a class="code hl_define" href="base_2logging_8h.html#ab25e01a2942b821d66371fc68d53f2eb">CHECK_NE</a>(num_policies, 0);</div>
|
|
<div class="line"><a id="l00925" name="l00925"></a><span class="lineno"> 925</span> <a class="code hl_define" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(num_policies, heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">restart_policies</a>.size());</div>
|
|
<div class="line"><a id="l00926" name="l00926"></a><span class="lineno"> 926</span> </div>
|
|
<div class="line"><a id="l00927" name="l00927"></a><span class="lineno"> 927</span> <span class="keyword">auto</span>* helper = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_search_helper.html">IntegerSearchHelper</a>>();</div>
|
|
<div class="line"><a id="l00928" name="l00928"></a><span class="lineno"> 928</span> </div>
|
|
<div class="line"><a id="l00929" name="l00929"></a><span class="lineno"> 929</span> <span class="comment">// This is needed for recording the pseudo-costs.</span></div>
|
|
<div class="line"><a id="l00930" name="l00930"></a><span class="lineno"> 930</span> IntegerVariable objective_var = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06">kNoIntegerVariable</a>;</div>
|
|
<div class="line"><a id="l00931" name="l00931"></a><span class="lineno"> 931</span> {</div>
|
|
<div class="line"><a id="l00932" name="l00932"></a><span class="lineno"> 932</span> <span class="keyword">const</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_objective_definition.html">ObjectiveDefinition</a>* objective = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Get<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_objective_definition.html">ObjectiveDefinition</a>>();</div>
|
|
<div class="line"><a id="l00933" name="l00933"></a><span class="lineno"> 933</span> <span class="keywordflow">if</span> (objective != <span class="keyword">nullptr</span>) objective_var = objective-><a class="code hl_variable" href="structoperations__research_1_1sat_1_1_objective_definition.html#aa3c0b31567c91babfffd5f9afc3161dc">objective_var</a>;</div>
|
|
<div class="line"><a id="l00934" name="l00934"></a><span class="lineno"> 934</span> }</div>
|
|
<div class="line"><a id="l00935" name="l00935"></a><span class="lineno"> 935</span> </div>
|
|
<div class="line"><a id="l00936" name="l00936"></a><span class="lineno"> 936</span> <span class="comment">// Note that it is important to do the level-zero propagation if it wasn't</span></div>
|
|
<div class="line"><a id="l00937" name="l00937"></a><span class="lineno"> 937</span> <span class="comment">// already done because EnqueueDecisionAndBackjumpOnConflict() assumes that</span></div>
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<div class="line"><a id="l00938" name="l00938"></a><span class="lineno"> 938</span> <span class="comment">// the solver is in a "propagated" state.</span></div>
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<div class="line"><a id="l00939" name="l00939"></a><span class="lineno"> 939</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* <span class="keyword">const</span> sat_solver = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>>();</div>
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<div class="line"><a id="l00940" name="l00940"></a><span class="lineno"> 940</span> </div>
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<div class="line"><a id="l00941" name="l00941"></a><span class="lineno"> 941</span> <span class="comment">// TODO(user): We have the issue that at level zero. calling the propagation</span></div>
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|
<div class="line"><a id="l00942" name="l00942"></a><span class="lineno"> 942</span> <span class="comment">// loop more than once can propagate more! This is because we call the LP</span></div>
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<div class="line"><a id="l00943" name="l00943"></a><span class="lineno"> 943</span> <span class="comment">// again and again on each level zero propagation. This is causing some</span></div>
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|
<div class="line"><a id="l00944" name="l00944"></a><span class="lineno"> 944</span> <span class="comment">// CHECKs() to fail in multithread (rarely) because when we associate new</span></div>
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<div class="line"><a id="l00945" name="l00945"></a><span class="lineno"> 945</span> <span class="comment">// literals to integer ones, Propagate() is indirectly called. Not sure yet</span></div>
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|
<div class="line"><a id="l00946" name="l00946"></a><span class="lineno"> 946</span> <span class="comment">// how to fix.</span></div>
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|
<div class="line"><a id="l00947" name="l00947"></a><span class="lineno"> 947</span> <span class="keywordflow">if</span> (!sat_solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a607d97ccada862073f297bc2d495124d">FinishPropagation</a>()) <span class="keywordflow">return</span> sat_solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a5bbe13ebae8aa11a8a4ac1cb01bc66ad">UnsatStatus</a>();</div>
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|
<div class="line"><a id="l00948" name="l00948"></a><span class="lineno"> 948</span> </div>
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<div class="line"><a id="l00949" name="l00949"></a><span class="lineno"> 949</span> <span class="keyword">auto</span>* prober = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_prober.html">Prober</a>>();</div>
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|
<div class="line"><a id="l00950" name="l00950"></a><span class="lineno"> 950</span> </div>
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<div class="line"><a id="l00951" name="l00951"></a><span class="lineno"> 951</span> <span class="keyword">const</span> SatParameters& sat_parameters = *(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<SatParameters>());</div>
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|
<div class="line"><a id="l00952" name="l00952"></a><span class="lineno"> 952</span> </div>
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<div class="line"><a id="l00953" name="l00953"></a><span class="lineno"> 953</span> <span class="comment">// Main search loop.</span></div>
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|
<div class="line"><a id="l00954" name="l00954"></a><span class="lineno"> 954</span> <span class="keyword">const</span> int64_t old_num_conflicts = sat_solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#acace892b69b55e3ee219e2893f34ef8f">num_failures</a>();</div>
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|
<div class="line"><a id="l00955" name="l00955"></a><span class="lineno"> 955</span> <span class="keyword">const</span> int64_t conflict_limit = sat_parameters.max_number_of_conflicts();</div>
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<div class="line"><a id="l00956" name="l00956"></a><span class="lineno"> 956</span> int64_t num_decisions_since_last_lp_record_ = 0;</div>
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|
<div class="line"><a id="l00957" name="l00957"></a><span class="lineno"> 957</span> int64_t num_decisions_without_probing = 0;</div>
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|
<div class="line"><a id="l00958" name="l00958"></a><span class="lineno"> 958</span> <span class="keywordflow">while</span> (!<a class="code hl_variable" href="cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21">time_limit</a>-><a class="code hl_function" href="classoperations__research_1_1_shared_time_limit.html#ad837e6231722ead53bbaf1c6e8f66032">LimitReached</a>() &&</div>
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<div class="line"><a id="l00959" name="l00959"></a><span class="lineno"> 959</span> (sat_solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#acace892b69b55e3ee219e2893f34ef8f">num_failures</a>() - old_num_conflicts < conflict_limit)) {</div>
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|
<div class="line"><a id="l00960" name="l00960"></a><span class="lineno"> 960</span> <span class="comment">// If needed, restart and switch decision_policy.</span></div>
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|
<div class="line"><a id="l00961" name="l00961"></a><span class="lineno"> 961</span> <span class="keywordflow">if</span> (heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">restart_policies</a>[heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af2155539e87804108c670c32478e123d">policy_index</a>]()) {</div>
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|
<div class="line"><a id="l00962" name="l00962"></a><span class="lineno"> 962</span> <span class="keywordflow">if</span> (!sat_solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ac714aeb75f0f6dd87e52e5d1a0d6edc7">RestoreSolverToAssumptionLevel</a>()) {</div>
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|
<div class="line"><a id="l00963" name="l00963"></a><span class="lineno"> 963</span> <span class="keywordflow">return</span> sat_solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a5bbe13ebae8aa11a8a4ac1cb01bc66ad">UnsatStatus</a>();</div>
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|
<div class="line"><a id="l00964" name="l00964"></a><span class="lineno"> 964</span> }</div>
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|
<div class="line"><a id="l00965" name="l00965"></a><span class="lineno"> 965</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af2155539e87804108c670c32478e123d">policy_index</a> = (heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af2155539e87804108c670c32478e123d">policy_index</a> + 1) % num_policies;</div>
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|
<div class="line"><a id="l00966" name="l00966"></a><span class="lineno"> 966</span> }</div>
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|
<div class="line"><a id="l00967" name="l00967"></a><span class="lineno"> 967</span> </div>
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|
<div class="line"><a id="l00968" name="l00968"></a><span class="lineno"> 968</span> <span class="keywordflow">if</span> (!helper->BeforeTakingDecision()) <span class="keywordflow">return</span> sat_solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a5bbe13ebae8aa11a8a4ac1cb01bc66ad">UnsatStatus</a>();</div>
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|
<div class="line"><a id="l00969" name="l00969"></a><span class="lineno"> 969</span> </div>
|
|
<div class="line"><a id="l00970" name="l00970"></a><span class="lineno"> 970</span> LiteralIndex decision = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>;</div>
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|
<div class="line"><a id="l00971" name="l00971"></a><span class="lineno"> 971</span> <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div>
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|
<div class="line"><a id="l00972" name="l00972"></a><span class="lineno"> 972</span> <span class="keywordflow">if</span> (heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#aa1668e07fb6607c61474310ad1045657">next_decision_override</a> != <span class="keyword">nullptr</span>) {</div>
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|
<div class="line"><a id="l00973" name="l00973"></a><span class="lineno"> 973</span> <span class="comment">// Note that to properly count the num_times, we do not want to move</span></div>
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|
<div class="line"><a id="l00974" name="l00974"></a><span class="lineno"> 974</span> <span class="comment">// this function, but actually call that copy.</span></div>
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|
<div class="line"><a id="l00975" name="l00975"></a><span class="lineno"> 975</span> decision = helper->GetDecision(heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#aa1668e07fb6607c61474310ad1045657">next_decision_override</a>);</div>
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|
<div class="line"><a id="l00976" name="l00976"></a><span class="lineno"> 976</span> <span class="keywordflow">if</span> (decision == <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>) {</div>
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|
<div class="line"><a id="l00977" name="l00977"></a><span class="lineno"> 977</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#aa1668e07fb6607c61474310ad1045657">next_decision_override</a> = <span class="keyword">nullptr</span>;</div>
|
|
<div class="line"><a id="l00978" name="l00978"></a><span class="lineno"> 978</span> }</div>
|
|
<div class="line"><a id="l00979" name="l00979"></a><span class="lineno"> 979</span> }</div>
|
|
<div class="line"><a id="l00980" name="l00980"></a><span class="lineno"> 980</span> <span class="keywordflow">if</span> (decision == <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>) {</div>
|
|
<div class="line"><a id="l00981" name="l00981"></a><span class="lineno"> 981</span> decision = helper->GetDecision(</div>
|
|
<div class="line"><a id="l00982" name="l00982"></a><span class="lineno"> 982</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a>[heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af2155539e87804108c670c32478e123d">policy_index</a>]);</div>
|
|
<div class="line"><a id="l00983" name="l00983"></a><span class="lineno"> 983</span> }</div>
|
|
<div class="line"><a id="l00984" name="l00984"></a><span class="lineno"> 984</span> </div>
|
|
<div class="line"><a id="l00985" name="l00985"></a><span class="lineno"> 985</span> <span class="comment">// Probing?</span></div>
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|
<div class="line"><a id="l00986" name="l00986"></a><span class="lineno"> 986</span> <span class="comment">//</span></div>
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|
<div class="line"><a id="l00987" name="l00987"></a><span class="lineno"> 987</span> <span class="comment">// TODO(user): Be smarter about what variables we probe, we can</span></div>
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|
<div class="line"><a id="l00988" name="l00988"></a><span class="lineno"> 988</span> <span class="comment">// also do more than one.</span></div>
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|
<div class="line"><a id="l00989" name="l00989"></a><span class="lineno"> 989</span> <span class="keywordflow">if</span> (decision != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a> &&</div>
|
|
<div class="line"><a id="l00990" name="l00990"></a><span class="lineno"> 990</span> sat_solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ad63c4461a1384629cb99413c6df8b9ca">CurrentDecisionLevel</a>() == 0 &&</div>
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|
<div class="line"><a id="l00991" name="l00991"></a><span class="lineno"> 991</span> sat_parameters.probing_period_at_root() > 0 &&</div>
|
|
<div class="line"><a id="l00992" name="l00992"></a><span class="lineno"> 992</span> ++num_decisions_without_probing >=</div>
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|
<div class="line"><a id="l00993" name="l00993"></a><span class="lineno"> 993</span> sat_parameters.probing_period_at_root()) {</div>
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|
<div class="line"><a id="l00994" name="l00994"></a><span class="lineno"> 994</span> num_decisions_without_probing = 0;</div>
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|
<div class="line"><a id="l00995" name="l00995"></a><span class="lineno"> 995</span> <span class="keywordflow">if</span> (!prober->ProbeOneVariable(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(decision).<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a6a5dcff82096cd7a7147bf996dbaa5a8">Variable</a>())) {</div>
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|
<div class="line"><a id="l00996" name="l00996"></a><span class="lineno"> 996</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba2884fa43446c0cbc9c7a9b74d41d7483">SatSolver::INFEASIBLE</a>;</div>
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|
<div class="line"><a id="l00997" name="l00997"></a><span class="lineno"> 997</span> }</div>
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|
<div class="line"><a id="l00998" name="l00998"></a><span class="lineno"> 998</span> <a class="code hl_define" href="base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(sat_solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ad63c4461a1384629cb99413c6df8b9ca">CurrentDecisionLevel</a>(), 0);</div>
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|
<div class="line"><a id="l00999" name="l00999"></a><span class="lineno"> 999</span> </div>
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<div class="line"><a id="l01000" name="l01000"></a><span class="lineno"> 1000</span> <span class="comment">// We need to check after the probing that the literal is not fixed,</span></div>
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|
<div class="line"><a id="l01001" name="l01001"></a><span class="lineno"> 1001</span> <span class="comment">// otherwise we just go to the next decision.</span></div>
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|
<div class="line"><a id="l01002" name="l01002"></a><span class="lineno"> 1002</span> <span class="keywordflow">if</span> (sat_solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a4793952607a98dfddfbcc17abfabbb4b">Assignment</a>().<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#a142694366986039454f53b38e8378815">LiteralIsAssigned</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(decision))) {</div>
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|
<div class="line"><a id="l01003" name="l01003"></a><span class="lineno"> 1003</span> <span class="keywordflow">continue</span>;</div>
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|
<div class="line"><a id="l01004" name="l01004"></a><span class="lineno"> 1004</span> }</div>
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|
<div class="line"><a id="l01005" name="l01005"></a><span class="lineno"> 1005</span> }</div>
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|
<div class="line"><a id="l01006" name="l01006"></a><span class="lineno"> 1006</span> <span class="keywordflow">break</span>;</div>
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|
<div class="line"><a id="l01007" name="l01007"></a><span class="lineno"> 1007</span> }</div>
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|
<div class="line"><a id="l01008" name="l01008"></a><span class="lineno"> 1008</span> </div>
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<div class="line"><a id="l01009" name="l01009"></a><span class="lineno"> 1009</span> <span class="comment">// No decision means that we reached a leave of the search tree and that</span></div>
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<div class="line"><a id="l01010" name="l01010"></a><span class="lineno"> 1010</span> <span class="comment">// we have a feasible solution.</span></div>
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<div class="line"><a id="l01011" name="l01011"></a><span class="lineno"> 1011</span> <span class="comment">//</span></div>
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<div class="line"><a id="l01012" name="l01012"></a><span class="lineno"> 1012</span> <span class="comment">// Tricky: If the time limit is reached during the final propagation when</span></div>
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<div class="line"><a id="l01013" name="l01013"></a><span class="lineno"> 1013</span> <span class="comment">// all variables are fixed, there is no guarantee that the propagation</span></div>
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|
<div class="line"><a id="l01014" name="l01014"></a><span class="lineno"> 1014</span> <span class="comment">// responsible for testing the validity of the solution was run to</span></div>
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|
<div class="line"><a id="l01015" name="l01015"></a><span class="lineno"> 1015</span> <span class="comment">// completion. So we cannot report a feasible solution.</span></div>
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<div class="line"><a id="l01016" name="l01016"></a><span class="lineno"> 1016</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21">time_limit</a>-><a class="code hl_function" href="classoperations__research_1_1_shared_time_limit.html#ad837e6231722ead53bbaf1c6e8f66032">LimitReached</a>()) <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba72c2402449caa8f3edc8aa0a3816baed">SatSolver::LIMIT_REACHED</a>;</div>
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<div class="line"><a id="l01017" name="l01017"></a><span class="lineno"> 1017</span> <span class="keywordflow">if</span> (decision == <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>) {</div>
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<div class="line"><a id="l01018" name="l01018"></a><span class="lineno"> 1018</span> <span class="comment">// Save the current polarity of all Booleans in the solution. It will be</span></div>
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<div class="line"><a id="l01019" name="l01019"></a><span class="lineno"> 1019</span> <span class="comment">// followed for the next SAT decisions. This is known to be a good policy</span></div>
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<div class="line"><a id="l01020" name="l01020"></a><span class="lineno"> 1020</span> <span class="comment">// for optimization problem. Note that for decision problem we don't care</span></div>
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<div class="line"><a id="l01021" name="l01021"></a><span class="lineno"> 1021</span> <span class="comment">// since we are just done as soon as a solution is found.</span></div>
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|
<div class="line"><a id="l01022" name="l01022"></a><span class="lineno"> 1022</span> <span class="comment">//</span></div>
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<div class="line"><a id="l01023" name="l01023"></a><span class="lineno"> 1023</span> <span class="comment">// This idea is kind of "well known", see for instance the "LinSBPS"</span></div>
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<div class="line"><a id="l01024" name="l01024"></a><span class="lineno"> 1024</span> <span class="comment">// submission to the maxSAT 2018 competition by Emir Demirovic and Peter</span></div>
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<div class="line"><a id="l01025" name="l01025"></a><span class="lineno"> 1025</span> <span class="comment">// Stuckey where they show it is a good idea and provide more references.</span></div>
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<div class="line"><a id="l01026" name="l01026"></a><span class="lineno"> 1026</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<SatParameters>()->use_optimization_hints()) {</div>
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|
<div class="line"><a id="l01027" name="l01027"></a><span class="lineno"> 1027</span> <span class="keyword">auto</span>* sat_decision = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_decision_policy.html">SatDecisionPolicy</a>>();</div>
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|
<div class="line"><a id="l01028" name="l01028"></a><span class="lineno"> 1028</span> <span class="keyword">const</span> <span class="keyword">auto</span>& trail = *<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_trail.html">Trail</a>>();</div>
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|
<div class="line"><a id="l01029" name="l01029"></a><span class="lineno"> 1029</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < trail.Index(); ++i) {</div>
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|
<div class="line"><a id="l01030" name="l01030"></a><span class="lineno"> 1030</span> sat_decision->SetAssignmentPreference(trail[i], 0.0);</div>
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|
<div class="line"><a id="l01031" name="l01031"></a><span class="lineno"> 1031</span> }</div>
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|
<div class="line"><a id="l01032" name="l01032"></a><span class="lineno"> 1032</span> }</div>
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|
<div class="line"><a id="l01033" name="l01033"></a><span class="lineno"> 1033</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba03f919221217f95d21a593a7120165e1">SatSolver::FEASIBLE</a>;</div>
|
|
<div class="line"><a id="l01034" name="l01034"></a><span class="lineno"> 1034</span> }</div>
|
|
<div class="line"><a id="l01035" name="l01035"></a><span class="lineno"> 1035</span> </div>
|
|
<div class="line"><a id="l01036" name="l01036"></a><span class="lineno"> 1036</span> <span class="keywordflow">if</span> (!helper->TakeDecision(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(decision))) {</div>
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|
<div class="line"><a id="l01037" name="l01037"></a><span class="lineno"> 1037</span> <span class="keywordflow">return</span> sat_solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a5bbe13ebae8aa11a8a4ac1cb01bc66ad">UnsatStatus</a>();</div>
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|
<div class="line"><a id="l01038" name="l01038"></a><span class="lineno"> 1038</span> }</div>
|
|
<div class="line"><a id="l01039" name="l01039"></a><span class="lineno"> 1039</span> </div>
|
|
<div class="line"><a id="l01040" name="l01040"></a><span class="lineno"> 1040</span> <span class="comment">// TODO(user): Experiment more around dynamically changing the</span></div>
|
|
<div class="line"><a id="l01041" name="l01041"></a><span class="lineno"> 1041</span> <span class="comment">// threshold for storing LP solutions in the pool. Alternatively expose</span></div>
|
|
<div class="line"><a id="l01042" name="l01042"></a><span class="lineno"> 1042</span> <span class="comment">// this as parameter so this can be tuned later.</span></div>
|
|
<div class="line"><a id="l01043" name="l01043"></a><span class="lineno"> 1043</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l01044" name="l01044"></a><span class="lineno"> 1044</span> <span class="comment">// TODO(user): Avoid adding the same solution many time if the LP didn't</span></div>
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|
<div class="line"><a id="l01045" name="l01045"></a><span class="lineno"> 1045</span> <span class="comment">// change. Avoid adding solution that are too deep in the tree (most</span></div>
|
|
<div class="line"><a id="l01046" name="l01046"></a><span class="lineno"> 1046</span> <span class="comment">// variable fixed). Also use a callback rather than having this here, we</span></div>
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|
<div class="line"><a id="l01047" name="l01047"></a><span class="lineno"> 1047</span> <span class="comment">// don't want this file to depend on cp_model.proto.</span></div>
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|
<div class="line"><a id="l01048" name="l01048"></a><span class="lineno"> 1048</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Get<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_shared_l_p_solution_repository.html">SharedLPSolutionRepository</a>>() != <span class="keyword">nullptr</span>) {</div>
|
|
<div class="line"><a id="l01049" name="l01049"></a><span class="lineno"> 1049</span> num_decisions_since_last_lp_record_++;</div>
|
|
<div class="line"><a id="l01050" name="l01050"></a><span class="lineno"> 1050</span> <span class="keywordflow">if</span> (num_decisions_since_last_lp_record_ >= 100) {</div>
|
|
<div class="line"><a id="l01051" name="l01051"></a><span class="lineno"> 1051</span> <span class="comment">// NOTE: We can actually record LP solutions more frequently. However</span></div>
|
|
<div class="line"><a id="l01052" name="l01052"></a><span class="lineno"> 1052</span> <span class="comment">// this process is time consuming and workers waste a lot of time doing</span></div>
|
|
<div class="line"><a id="l01053" name="l01053"></a><span class="lineno"> 1053</span> <span class="comment">// this. To avoid this we don't record solutions after each decision.</span></div>
|
|
<div class="line"><a id="l01054" name="l01054"></a><span class="lineno"> 1054</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a334bf93d91912354ff5d0f161a64c273">RecordLPRelaxationValues</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
|
|
<div class="line"><a id="l01055" name="l01055"></a><span class="lineno"> 1055</span> num_decisions_since_last_lp_record_ = 0;</div>
|
|
<div class="line"><a id="l01056" name="l01056"></a><span class="lineno"> 1056</span> }</div>
|
|
<div class="line"><a id="l01057" name="l01057"></a><span class="lineno"> 1057</span> }</div>
|
|
<div class="line"><a id="l01058" name="l01058"></a><span class="lineno"> 1058</span> }</div>
|
|
<div class="line"><a id="l01059" name="l01059"></a><span class="lineno"> 1059</span> <span class="keywordflow">return</span> SatSolver::Status::LIMIT_REACHED;</div>
|
|
<div class="line"><a id="l01060" name="l01060"></a><span class="lineno"> 1060</span>}</div>
|
|
<div class="line"><a id="l01061" name="l01061"></a><span class="lineno"> 1061</span> </div>
|
|
<div class="line"><a id="l01062" name="l01062"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a17b20b0845d9e02829d417294aded36a"> 1062</a></span><a class="code hl_enumeration" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">SatSolver::Status</a> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a17b20b0845d9e02829d417294aded36a">ResetAndSolveIntegerProblem</a>(</div>
|
|
<div class="line"><a id="l01063" name="l01063"></a><span class="lineno"> 1063</span> <span class="keyword">const</span> std::vector<Literal>& assumptions, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
|
|
<div class="line"><a id="l01064" name="l01064"></a><span class="lineno"> 1064</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* <span class="keyword">const</span> solver = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>>();</div>
|
|
<div class="line"><a id="l01065" name="l01065"></a><span class="lineno"> 1065</span> </div>
|
|
<div class="line"><a id="l01066" name="l01066"></a><span class="lineno"> 1066</span> <span class="comment">// Sync the bound first.</span></div>
|
|
<div class="line"><a id="l01067" name="l01067"></a><span class="lineno"> 1067</span> <span class="keywordflow">if</span> (!solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a9da38c8d2910442d551db5e360423029">ResetToLevelZero</a>()) <span class="keywordflow">return</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a5bbe13ebae8aa11a8a4ac1cb01bc66ad">UnsatStatus</a>();</div>
|
|
<div class="line"><a id="l01068" name="l01068"></a><span class="lineno"> 1068</span> <span class="keyword">auto</span>* level_zero_callbacks = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_level_zero_callback_helper.html">LevelZeroCallbackHelper</a>>();</div>
|
|
<div class="line"><a id="l01069" name="l01069"></a><span class="lineno"> 1069</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& cb : level_zero_callbacks->callbacks) {</div>
|
|
<div class="line"><a id="l01070" name="l01070"></a><span class="lineno"> 1070</span> <span class="keywordflow">if</span> (!cb()) {</div>
|
|
<div class="line"><a id="l01071" name="l01071"></a><span class="lineno"> 1071</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a4f7251fc4692363cf55796a6f3e267ea">NotifyThatModelIsUnsat</a>();</div>
|
|
<div class="line"><a id="l01072" name="l01072"></a><span class="lineno"> 1072</span> <span class="keywordflow">return</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a5bbe13ebae8aa11a8a4ac1cb01bc66ad">UnsatStatus</a>();</div>
|
|
<div class="line"><a id="l01073" name="l01073"></a><span class="lineno"> 1073</span> }</div>
|
|
<div class="line"><a id="l01074" name="l01074"></a><span class="lineno"> 1074</span> }</div>
|
|
<div class="line"><a id="l01075" name="l01075"></a><span class="lineno"> 1075</span> </div>
|
|
<div class="line"><a id="l01076" name="l01076"></a><span class="lineno"> 1076</span> <span class="comment">// Add the assumptions if any and solve.</span></div>
|
|
<div class="line"><a id="l01077" name="l01077"></a><span class="lineno"> 1077</span> <span class="keywordflow">if</span> (!solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ad4494c6831942d344ed1d9758f0e6cd9">ResetWithGivenAssumptions</a>(assumptions)) {</div>
|
|
<div class="line"><a id="l01078" name="l01078"></a><span class="lineno"> 1078</span> <span class="keywordflow">return</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a5bbe13ebae8aa11a8a4ac1cb01bc66ad">UnsatStatus</a>();</div>
|
|
<div class="line"><a id="l01079" name="l01079"></a><span class="lineno"> 1079</span> }</div>
|
|
<div class="line"><a id="l01080" name="l01080"></a><span class="lineno"> 1080</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a8bea9a6a0de60c8fdab99ad7dfdf8498">SolveIntegerProblem</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
|
|
<div class="line"><a id="l01081" name="l01081"></a><span class="lineno"> 1081</span>}</div>
|
|
<div class="line"><a id="l01082" name="l01082"></a><span class="lineno"> 1082</span> </div>
|
|
<div class="line"><a id="l01083" name="l01083"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a48d1aae59a778d6f39609f9add7cd0a5"> 1083</a></span><a class="code hl_enumeration" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">SatSolver::Status</a> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a48d1aae59a778d6f39609f9add7cd0a5">SolveIntegerProblemWithLazyEncoding</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
|
|
<div class="line"><a id="l01084" name="l01084"></a><span class="lineno"> 1084</span> <span class="keyword">const</span> IntegerVariable num_vars =</div>
|
|
<div class="line"><a id="l01085" name="l01085"></a><span class="lineno"> 1085</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>>()->NumIntegerVariables();</div>
|
|
<div class="line"><a id="l01086" name="l01086"></a><span class="lineno"> 1086</span> std::vector<IntegerVariable> all_variables;</div>
|
|
<div class="line"><a id="l01087" name="l01087"></a><span class="lineno"> 1087</span> <span class="keywordflow">for</span> (IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>(0); <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> < num_vars; ++<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div>
|
|
<div class="line"><a id="l01088" name="l01088"></a><span class="lineno"> 1088</span> all_variables.push_back(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
|
|
<div class="line"><a id="l01089" name="l01089"></a><span class="lineno"> 1089</span> }</div>
|
|
<div class="line"><a id="l01090" name="l01090"></a><span class="lineno"> 1090</span> </div>
|
|
<div class="line"><a id="l01091" name="l01091"></a><span class="lineno"> 1091</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_search_heuristics.html">SearchHeuristics</a>& heuristics = *<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_search_heuristics.html">SearchHeuristics</a>>();</div>
|
|
<div class="line"><a id="l01092" name="l01092"></a><span class="lineno"> 1092</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af2155539e87804108c670c32478e123d">policy_index</a> = 0;</div>
|
|
<div class="line"><a id="l01093" name="l01093"></a><span class="lineno"> 1093</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a> = {<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2acd1aef8e418e20032fd893668c04a6">SequentialSearch</a>(</div>
|
|
<div class="line"><a id="l01094" name="l01094"></a><span class="lineno"> 1094</span> {<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a8f18cefafff72d70f6e96ed3f2ef84aa">SatSolverHeuristic</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>),</div>
|
|
<div class="line"><a id="l01095" name="l01095"></a><span class="lineno"> 1095</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a0b08971dbb223f77e7fc9c41a77fdc7b">FirstUnassignedVarAtItsMinHeuristic</a>(all_variables, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)})};</div>
|
|
<div class="line"><a id="l01096" name="l01096"></a><span class="lineno"> 1096</span> heuristics.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">restart_policies</a> = {<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a527a6ee26b7f573def70daf9b2a9e577">SatSolverRestartPolicy</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)};</div>
|
|
<div class="line"><a id="l01097" name="l01097"></a><span class="lineno"> 1097</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a17b20b0845d9e02829d417294aded36a">ResetAndSolveIntegerProblem</a>(<span class="comment">/*assumptions=*/</span>{}, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
|
|
<div class="line"><a id="l01098" name="l01098"></a><span class="lineno"> 1098</span>}</div>
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|
<div class="line"><a id="l01099" name="l01099"></a><span class="lineno"> 1099</span> </div>
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|
<div class="line"><a id="l01100" name="l01100"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_continuous_prober.html#af733190053c056911f29cc2c4a125582"> 1100</a></span><a class="code hl_function" href="classoperations__research_1_1sat_1_1_continuous_prober.html#af733190053c056911f29cc2c4a125582">ContinuousProber::ContinuousProber</a>(<span class="keyword">const</span> CpModelProto& <a class="code hl_variable" href="cp__model__solver_8cc.html#a6ac76d8a372013f67c4973012948ec84">model_proto</a>,</div>
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|
<div class="line"><a id="l01101" name="l01101"></a><span class="lineno"> 1101</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)</div>
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|
<div class="line"><a id="l01102" name="l01102"></a><span class="lineno"> 1102</span> : model_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>),</div>
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|
<div class="line"><a id="l01103" name="l01103"></a><span class="lineno"> 1103</span> sat_solver_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>>()),</div>
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<div class="line"><a id="l01104" name="l01104"></a><span class="lineno"> 1104</span> time_limit_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1_time_limit.html">TimeLimit</a>>()),</div>
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<div class="line"><a id="l01105" name="l01105"></a><span class="lineno"> 1105</span> trail_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_trail.html">Trail</a>>()),</div>
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<div class="line"><a id="l01106" name="l01106"></a><span class="lineno"> 1106</span> integer_trail_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>>()),</div>
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<div class="line"><a id="l01107" name="l01107"></a><span class="lineno"> 1107</span> encoder_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_encoder.html">IntegerEncoder</a>>()),</div>
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<div class="line"><a id="l01108" name="l01108"></a><span class="lineno"> 1108</span> parameters_(*(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<SatParameters>())),</div>
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<div class="line"><a id="l01109" name="l01109"></a><span class="lineno"> 1109</span> level_zero_callbacks_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_level_zero_callback_helper.html">LevelZeroCallbackHelper</a>>()),</div>
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<div class="line"><a id="l01110" name="l01110"></a><span class="lineno"> 1110</span> prober_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_prober.html">Prober</a>>()),</div>
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<div class="line"><a id="l01111" name="l01111"></a><span class="lineno"> 1111</span> shared_response_manager_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Mutable<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_shared_response_manager.html">SharedResponseManager</a>>()),</div>
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<div class="line"><a id="l01112" name="l01112"></a><span class="lineno"> 1112</span> shared_bounds_manager_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Mutable<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_shared_bounds_manager.html">SharedBoundsManager</a>>()),</div>
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<div class="line"><a id="l01113" name="l01113"></a><span class="lineno"> 1113</span> active_limit_(parameters_.shaving_search_deterministic_time()) {</div>
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<div class="line"><a id="l01114" name="l01114"></a><span class="lineno"> 1114</span> <span class="keyword">auto</span>* mapping = model_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_model.html#afb0c03e2a6201677c266f8a7eb77c2dc">GetOrCreate</a><<a class="code hl_class" href="classoperations__research_1_1sat_1_1_cp_model_mapping.html">CpModelMapping</a>>();</div>
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<div class="line"><a id="l01115" name="l01115"></a><span class="lineno"> 1115</span> absl::flat_hash_set<BooleanVariable> visited;</div>
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<div class="line"><a id="l01116" name="l01116"></a><span class="lineno"> 1116</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> v = 0; v < <a class="code hl_variable" href="cp__model__solver_8cc.html#a6ac76d8a372013f67c4973012948ec84">model_proto</a>.variables_size(); ++v) {</div>
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<div class="line"><a id="l01117" name="l01117"></a><span class="lineno"> 1117</span> <span class="keywordflow">if</span> (mapping->IsBoolean(v)) {</div>
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<div class="line"><a id="l01118" name="l01118"></a><span class="lineno"> 1118</span> <span class="keyword">const</span> BooleanVariable bool_var = mapping-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_mapping.html#a922026cbae3cd7aac276fcad53bd4278">Literal</a>(v).<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a6a5dcff82096cd7a7147bf996dbaa5a8">Variable</a>();</div>
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|
<div class="line"><a id="l01119" name="l01119"></a><span class="lineno"> 1119</span> <span class="keyword">const</span> <span class="keyword">auto</span> [_, inserted] = visited.insert(bool_var);</div>
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<div class="line"><a id="l01120" name="l01120"></a><span class="lineno"> 1120</span> <span class="keywordflow">if</span> (inserted) {</div>
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<div class="line"><a id="l01121" name="l01121"></a><span class="lineno"> 1121</span> bool_vars_.push_back(bool_var);</div>
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<div class="line"><a id="l01122" name="l01122"></a><span class="lineno"> 1122</span> }</div>
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<div class="line"><a id="l01123" name="l01123"></a><span class="lineno"> 1123</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l01124" name="l01124"></a><span class="lineno"> 1124</span> IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = mapping->Integer(v);</div>
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<div class="line"><a id="l01125" name="l01125"></a><span class="lineno"> 1125</span> <span class="keywordflow">if</span> (integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a523501d854b2ca8034d37c15e7c89117">IsFixed</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>)) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l01126" name="l01126"></a><span class="lineno"> 1126</span> int_vars_.push_back(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l01127" name="l01127"></a><span class="lineno"> 1127</span> }</div>
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<div class="line"><a id="l01128" name="l01128"></a><span class="lineno"> 1128</span> }</div>
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<div class="line"><a id="l01129" name="l01129"></a><span class="lineno"> 1129</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(2) << <span class="stringliteral">"Start continuous probing with "</span> << bool_vars_.size()</div>
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<div class="line"><a id="l01130" name="l01130"></a><span class="lineno"> 1130</span> << <span class="stringliteral">" Boolean variables, and "</span> << int_vars_.size()</div>
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<div class="line"><a id="l01131" name="l01131"></a><span class="lineno"> 1131</span> << <span class="stringliteral">" integer variables"</span></div>
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<div class="line"><a id="l01132" name="l01132"></a><span class="lineno"> 1132</span> << <span class="stringliteral">", deterministic time limit = "</span></div>
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<div class="line"><a id="l01133" name="l01133"></a><span class="lineno"> 1133</span> << time_limit_-><a class="code hl_function" href="classoperations__research_1_1_time_limit.html#a75214ecbf18d3e29566c78cac35f699b">GetDeterministicLimit</a>() << <span class="stringliteral">" on "</span> << model_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_model.html#a8546382b04c2126bd39cc17d72d0b5a2">Name</a>();</div>
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|
<div class="line"><a id="l01134" name="l01134"></a><span class="lineno"> 1134</span> last_logging_time_ = absl::Now();</div>
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<div class="line"><a id="l01135" name="l01135"></a><span class="lineno"> 1135</span>}</div>
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<div class="line"><a id="l01136" name="l01136"></a><span class="lineno"> 1136</span> </div>
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<div class="line"><a id="l01137" name="l01137"></a><span class="lineno"> 1137</span><span class="comment">// Continuous probing procedure.</span></div>
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|
<div class="line"><a id="l01138" name="l01138"></a><span class="lineno"> 1138</span><span class="comment">// TODO(user):</span></div>
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|
<div class="line"><a id="l01139" name="l01139"></a><span class="lineno"> 1139</span><span class="comment">// - sort variables before the iteration (statically or dynamically)</span></div>
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|
<div class="line"><a id="l01140" name="l01140"></a><span class="lineno"> 1140</span><span class="comment">// - compress clause databases regularly (especially the implication graph)</span></div>
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|
<div class="line"><a id="l01141" name="l01141"></a><span class="lineno"> 1141</span><span class="comment">// - better interleaving of the probing and shaving phases</span></div>
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|
<div class="line"><a id="l01142" name="l01142"></a><span class="lineno"> 1142</span><span class="comment">// - move the shaving code directly in the probing class</span></div>
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|
<div class="line"><a id="l01143" name="l01143"></a><span class="lineno"> 1143</span><span class="comment">// - probe all variables and not just the model ones</span></div>
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<div class="line"><a id="l01144" name="l01144"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_continuous_prober.html#ae7eb5c14b3b5f8dc02b56e56a3fccfd8"> 1144</a></span><a class="code hl_enumeration" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">SatSolver::Status</a> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_continuous_prober.html#ae7eb5c14b3b5f8dc02b56e56a3fccfd8">ContinuousProber::Probe</a>() {</div>
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|
<div class="line"><a id="l01145" name="l01145"></a><span class="lineno"> 1145</span> <span class="comment">// Backtrack to level 0 in case we are not there.</span></div>
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<div class="line"><a id="l01146" name="l01146"></a><span class="lineno"> 1146</span> <span class="keywordflow">if</span> (!sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a9da38c8d2910442d551db5e360423029">ResetToLevelZero</a>()) <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba2884fa43446c0cbc9c7a9b74d41d7483">SatSolver::INFEASIBLE</a>;</div>
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|
<div class="line"><a id="l01147" name="l01147"></a><span class="lineno"> 1147</span> </div>
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|
<div class="line"><a id="l01148" name="l01148"></a><span class="lineno"> 1148</span> <span class="keywordflow">while</span> (!time_limit_-><a class="code hl_function" href="classoperations__research_1_1_time_limit.html#a810d5f7aaf80cc09cf5a094e20c1aaca">LimitReached</a>()) {</div>
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|
<div class="line"><a id="l01149" name="l01149"></a><span class="lineno"> 1149</span> <span class="comment">// Run sat in-processing to reduce the size of the clause database.</span></div>
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|
<div class="line"><a id="l01150" name="l01150"></a><span class="lineno"> 1150</span> <span class="keywordflow">if</span> (parameters_.use_sat_inprocessing() &&</div>
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<div class="line"><a id="l01151" name="l01151"></a><span class="lineno"> 1151</span> !model_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_model.html#afb0c03e2a6201677c266f8a7eb77c2dc">GetOrCreate</a><<a class="code hl_class" href="classoperations__research_1_1sat_1_1_inprocessing.html">Inprocessing</a>>()-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_inprocessing.html#a2e5437cb35da63545f954a80536023e0">InprocessingRound</a>()) {</div>
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|
<div class="line"><a id="l01152" name="l01152"></a><span class="lineno"> 1152</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba2884fa43446c0cbc9c7a9b74d41d7483">SatSolver::INFEASIBLE</a>;</div>
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|
<div class="line"><a id="l01153" name="l01153"></a><span class="lineno"> 1153</span> }</div>
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|
<div class="line"><a id="l01154" name="l01154"></a><span class="lineno"> 1154</span> </div>
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|
<div class="line"><a id="l01155" name="l01155"></a><span class="lineno"> 1155</span> <span class="comment">// Probe each Boolean variable at most once per loop.</span></div>
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|
<div class="line"><a id="l01156" name="l01156"></a><span class="lineno"> 1156</span> probed_bool_vars_.clear();</div>
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|
<div class="line"><a id="l01157" name="l01157"></a><span class="lineno"> 1157</span> probed_literals_.clear();</div>
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|
<div class="line"><a id="l01158" name="l01158"></a><span class="lineno"> 1158</span> </div>
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|
<div class="line"><a id="l01159" name="l01159"></a><span class="lineno"> 1159</span> <span class="comment">// Store current statistics to detect an iteration without any improvement.</span></div>
|
|
<div class="line"><a id="l01160" name="l01160"></a><span class="lineno"> 1160</span> <span class="keyword">const</span> int64_t initial_num_literals_fixed =</div>
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|
<div class="line"><a id="l01161" name="l01161"></a><span class="lineno"> 1161</span> prober_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_prober.html#aeb27667851805b5e52c68ff3ce0ed9cc">num_new_literals_fixed</a>();</div>
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|
<div class="line"><a id="l01162" name="l01162"></a><span class="lineno"> 1162</span> <span class="keyword">const</span> int64_t initial_num_bounds_shaved = num_bounds_shaved_;</div>
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|
<div class="line"><a id="l01163" name="l01163"></a><span class="lineno"> 1163</span> </div>
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|
<div class="line"><a id="l01164" name="l01164"></a><span class="lineno"> 1164</span> <span class="comment">// Probe variable bounds.</span></div>
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|
<div class="line"><a id="l01165" name="l01165"></a><span class="lineno"> 1165</span> <span class="comment">// TODO(user): Probe optional variables.</span></div>
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|
<div class="line"><a id="l01166" name="l01166"></a><span class="lineno"> 1166</span> <span class="keywordflow">for</span> (; current_int_var_ < int_vars_.size(); ++current_int_var_) {</div>
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|
<div class="line"><a id="l01167" name="l01167"></a><span class="lineno"> 1167</span> <span class="keyword">const</span> IntegerVariable int_var = int_vars_[current_int_var_];</div>
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|
<div class="line"><a id="l01168" name="l01168"></a><span class="lineno"> 1168</span> <span class="keywordflow">if</span> (integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a523501d854b2ca8034d37c15e7c89117">IsFixed</a>(int_var) ||</div>
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|
<div class="line"><a id="l01169" name="l01169"></a><span class="lineno"> 1169</span> integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#acc1aaae243ed4381e84f8309aacb3bbc">IsOptional</a>(int_var)) {</div>
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|
<div class="line"><a id="l01170" name="l01170"></a><span class="lineno"> 1170</span> <span class="keywordflow">continue</span>;</div>
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|
<div class="line"><a id="l01171" name="l01171"></a><span class="lineno"> 1171</span> }</div>
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|
<div class="line"><a id="l01172" name="l01172"></a><span class="lineno"> 1172</span> </div>
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|
<div class="line"><a id="l01173" name="l01173"></a><span class="lineno"> 1173</span> <span class="keywordflow">if</span> (!ImportFromSharedClasses()) {</div>
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|
<div class="line"><a id="l01174" name="l01174"></a><span class="lineno"> 1174</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba2884fa43446c0cbc9c7a9b74d41d7483">SatSolver::INFEASIBLE</a>;</div>
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|
<div class="line"><a id="l01175" name="l01175"></a><span class="lineno"> 1175</span> }</div>
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|
<div class="line"><a id="l01176" name="l01176"></a><span class="lineno"> 1176</span> </div>
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|
<div class="line"><a id="l01177" name="l01177"></a><span class="lineno"> 1177</span> <span class="keywordflow">if</span> (time_limit_-><a class="code hl_function" href="classoperations__research_1_1_time_limit.html#a810d5f7aaf80cc09cf5a094e20c1aaca">LimitReached</a>()) {</div>
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|
<div class="line"><a id="l01178" name="l01178"></a><span class="lineno"> 1178</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba72c2402449caa8f3edc8aa0a3816baed">SatSolver::LIMIT_REACHED</a>;</div>
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|
<div class="line"><a id="l01179" name="l01179"></a><span class="lineno"> 1179</span> }</div>
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|
<div class="line"><a id="l01180" name="l01180"></a><span class="lineno"> 1180</span> </div>
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|
<div class="line"><a id="l01181" name="l01181"></a><span class="lineno"> 1181</span> <span class="keyword">const</span> BooleanVariable shave_lb =</div>
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|
<div class="line"><a id="l01182" name="l01182"></a><span class="lineno"> 1182</span> encoder_</div>
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<div class="line"><a id="l01183" name="l01183"></a><span class="lineno"> 1183</span> -><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_encoder.html#afcd4038298bec97a2f7a61274c6ef8c7">GetOrCreateAssociatedLiteral</a>(<a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#a3e2eb445631727dd4abf1d5343f16b2f">IntegerLiteral::LowerOrEqual</a>(</div>
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<div class="line"><a id="l01184" name="l01184"></a><span class="lineno"> 1184</span> int_var, integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9">LowerBound</a>(int_var)))</div>
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|
<div class="line"><a id="l01185" name="l01185"></a><span class="lineno"> 1185</span> .<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a6a5dcff82096cd7a7147bf996dbaa5a8">Variable</a>();</div>
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|
<div class="line"><a id="l01186" name="l01186"></a><span class="lineno"> 1186</span> <span class="keyword">const</span> <span class="keyword">auto</span> [_lb, lb_inserted] = probed_bool_vars_.insert(shave_lb);</div>
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|
<div class="line"><a id="l01187" name="l01187"></a><span class="lineno"> 1187</span> <span class="keywordflow">if</span> (lb_inserted) {</div>
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|
<div class="line"><a id="l01188" name="l01188"></a><span class="lineno"> 1188</span> <span class="keywordflow">if</span> (!prober_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_prober.html#a7d6a8a15f30eb61684dbad769f7a557f">ProbeOneVariable</a>(shave_lb)) {</div>
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|
<div class="line"><a id="l01189" name="l01189"></a><span class="lineno"> 1189</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba2884fa43446c0cbc9c7a9b74d41d7483">SatSolver::INFEASIBLE</a>;</div>
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|
<div class="line"><a id="l01190" name="l01190"></a><span class="lineno"> 1190</span> }</div>
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|
<div class="line"><a id="l01191" name="l01191"></a><span class="lineno"> 1191</span> num_literals_probed_++;</div>
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|
<div class="line"><a id="l01192" name="l01192"></a><span class="lineno"> 1192</span> }</div>
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|
<div class="line"><a id="l01193" name="l01193"></a><span class="lineno"> 1193</span> </div>
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|
<div class="line"><a id="l01194" name="l01194"></a><span class="lineno"> 1194</span> <span class="keyword">const</span> BooleanVariable shave_ub =</div>
|
|
<div class="line"><a id="l01195" name="l01195"></a><span class="lineno"> 1195</span> encoder_</div>
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<div class="line"><a id="l01196" name="l01196"></a><span class="lineno"> 1196</span> -><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_encoder.html#afcd4038298bec97a2f7a61274c6ef8c7">GetOrCreateAssociatedLiteral</a>(<a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#a6c233aafac25ea66d69de93a83c9be63">IntegerLiteral::GreaterOrEqual</a>(</div>
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<div class="line"><a id="l01197" name="l01197"></a><span class="lineno"> 1197</span> int_var, integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac">UpperBound</a>(int_var)))</div>
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|
<div class="line"><a id="l01198" name="l01198"></a><span class="lineno"> 1198</span> .<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a6a5dcff82096cd7a7147bf996dbaa5a8">Variable</a>();</div>
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|
<div class="line"><a id="l01199" name="l01199"></a><span class="lineno"> 1199</span> <span class="keyword">const</span> <span class="keyword">auto</span> [_ub, ub_inserted] = probed_bool_vars_.insert(shave_ub);</div>
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|
<div class="line"><a id="l01200" name="l01200"></a><span class="lineno"> 1200</span> <span class="keywordflow">if</span> (ub_inserted) {</div>
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|
<div class="line"><a id="l01201" name="l01201"></a><span class="lineno"> 1201</span> <span class="keywordflow">if</span> (!prober_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_prober.html#a7d6a8a15f30eb61684dbad769f7a557f">ProbeOneVariable</a>(shave_ub)) {</div>
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|
<div class="line"><a id="l01202" name="l01202"></a><span class="lineno"> 1202</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba2884fa43446c0cbc9c7a9b74d41d7483">SatSolver::INFEASIBLE</a>;</div>
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|
<div class="line"><a id="l01203" name="l01203"></a><span class="lineno"> 1203</span> }</div>
|
|
<div class="line"><a id="l01204" name="l01204"></a><span class="lineno"> 1204</span> num_literals_probed_++;</div>
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|
<div class="line"><a id="l01205" name="l01205"></a><span class="lineno"> 1205</span> }</div>
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|
<div class="line"><a id="l01206" name="l01206"></a><span class="lineno"> 1206</span> </div>
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<div class="line"><a id="l01207" name="l01207"></a><span class="lineno"> 1207</span> <span class="keywordflow">if</span> (parameters_.use_shaving_in_probing_search()) {</div>
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|
<div class="line"><a id="l01208" name="l01208"></a><span class="lineno"> 1208</span> <span class="keyword">const</span> <a class="code hl_enumeration" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">SatSolver::Status</a> lb_status =</div>
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|
<div class="line"><a id="l01209" name="l01209"></a><span class="lineno"> 1209</span> ShaveLiteral(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(shave_lb, <span class="keyword">true</span>));</div>
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<div class="line"><a id="l01210" name="l01210"></a><span class="lineno"> 1210</span> <span class="keywordflow">if</span> (ReportStatus(lb_status)) <span class="keywordflow">return</span> lb_status;</div>
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|
<div class="line"><a id="l01211" name="l01211"></a><span class="lineno"> 1211</span> </div>
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<div class="line"><a id="l01212" name="l01212"></a><span class="lineno"> 1212</span> <span class="keyword">const</span> <a class="code hl_enumeration" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">SatSolver::Status</a> ub_status =</div>
|
|
<div class="line"><a id="l01213" name="l01213"></a><span class="lineno"> 1213</span> ShaveLiteral(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(shave_ub, <span class="keyword">true</span>));</div>
|
|
<div class="line"><a id="l01214" name="l01214"></a><span class="lineno"> 1214</span> <span class="keywordflow">if</span> (ReportStatus(ub_status)) <span class="keywordflow">return</span> ub_status;</div>
|
|
<div class="line"><a id="l01215" name="l01215"></a><span class="lineno"> 1215</span> }</div>
|
|
<div class="line"><a id="l01216" name="l01216"></a><span class="lineno"> 1216</span> </div>
|
|
<div class="line"><a id="l01217" name="l01217"></a><span class="lineno"> 1217</span> LogStatistics();</div>
|
|
<div class="line"><a id="l01218" name="l01218"></a><span class="lineno"> 1218</span> }</div>
|
|
<div class="line"><a id="l01219" name="l01219"></a><span class="lineno"> 1219</span> </div>
|
|
<div class="line"><a id="l01220" name="l01220"></a><span class="lineno"> 1220</span> <span class="comment">// Probe Boolean variables from the model.</span></div>
|
|
<div class="line"><a id="l01221" name="l01221"></a><span class="lineno"> 1221</span> <span class="keywordflow">for</span> (; current_bool_var_ < bool_vars_.size(); ++current_bool_var_) {</div>
|
|
<div class="line"><a id="l01222" name="l01222"></a><span class="lineno"> 1222</span> <span class="keyword">const</span> BooleanVariable& bool_var = bool_vars_[current_bool_var_];</div>
|
|
<div class="line"><a id="l01223" name="l01223"></a><span class="lineno"> 1223</span> </div>
|
|
<div class="line"><a id="l01224" name="l01224"></a><span class="lineno"> 1224</span> <span class="keywordflow">if</span> (sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a4793952607a98dfddfbcc17abfabbb4b">Assignment</a>().<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#a49e751eb6f0e9babd957889bb8e7472d">VariableIsAssigned</a>(bool_var)) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a id="l01225" name="l01225"></a><span class="lineno"> 1225</span> </div>
|
|
<div class="line"><a id="l01226" name="l01226"></a><span class="lineno"> 1226</span> <span class="keywordflow">if</span> (!ImportFromSharedClasses()) {</div>
|
|
<div class="line"><a id="l01227" name="l01227"></a><span class="lineno"> 1227</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba2884fa43446c0cbc9c7a9b74d41d7483">SatSolver::INFEASIBLE</a>;</div>
|
|
<div class="line"><a id="l01228" name="l01228"></a><span class="lineno"> 1228</span> }</div>
|
|
<div class="line"><a id="l01229" name="l01229"></a><span class="lineno"> 1229</span> </div>
|
|
<div class="line"><a id="l01230" name="l01230"></a><span class="lineno"> 1230</span> <span class="keywordflow">if</span> (time_limit_-><a class="code hl_function" href="classoperations__research_1_1_time_limit.html#a810d5f7aaf80cc09cf5a094e20c1aaca">LimitReached</a>()) {</div>
|
|
<div class="line"><a id="l01231" name="l01231"></a><span class="lineno"> 1231</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba72c2402449caa8f3edc8aa0a3816baed">SatSolver::LIMIT_REACHED</a>;</div>
|
|
<div class="line"><a id="l01232" name="l01232"></a><span class="lineno"> 1232</span> }</div>
|
|
<div class="line"><a id="l01233" name="l01233"></a><span class="lineno"> 1233</span> </div>
|
|
<div class="line"><a id="l01234" name="l01234"></a><span class="lineno"> 1234</span> <span class="keyword">const</span> <span class="keyword">auto</span> [_, inserted] = probed_bool_vars_.insert(bool_var);</div>
|
|
<div class="line"><a id="l01235" name="l01235"></a><span class="lineno"> 1235</span> <span class="keywordflow">if</span> (inserted) {</div>
|
|
<div class="line"><a id="l01236" name="l01236"></a><span class="lineno"> 1236</span> <span class="keywordflow">if</span> (!prober_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_prober.html#a7d6a8a15f30eb61684dbad769f7a557f">ProbeOneVariable</a>(bool_var)) {</div>
|
|
<div class="line"><a id="l01237" name="l01237"></a><span class="lineno"> 1237</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba2884fa43446c0cbc9c7a9b74d41d7483">SatSolver::INFEASIBLE</a>;</div>
|
|
<div class="line"><a id="l01238" name="l01238"></a><span class="lineno"> 1238</span> }</div>
|
|
<div class="line"><a id="l01239" name="l01239"></a><span class="lineno"> 1239</span> num_literals_probed_++;</div>
|
|
<div class="line"><a id="l01240" name="l01240"></a><span class="lineno"> 1240</span> }</div>
|
|
<div class="line"><a id="l01241" name="l01241"></a><span class="lineno"> 1241</span> </div>
|
|
<div class="line"><a id="l01242" name="l01242"></a><span class="lineno"> 1242</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a> <a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>(bool_var, <span class="keyword">true</span>);</div>
|
|
<div class="line"><a id="l01243" name="l01243"></a><span class="lineno"> 1243</span> <span class="keywordflow">if</span> (parameters_.use_shaving_in_probing_search() &&</div>
|
|
<div class="line"><a id="l01244" name="l01244"></a><span class="lineno"> 1244</span> !sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a4793952607a98dfddfbcc17abfabbb4b">Assignment</a>().<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#a142694366986039454f53b38e8378815">LiteralIsAssigned</a>(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>)) {</div>
|
|
<div class="line"><a id="l01245" name="l01245"></a><span class="lineno"> 1245</span> <span class="keyword">const</span> <a class="code hl_enumeration" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">SatSolver::Status</a> true_status = ShaveLiteral(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>);</div>
|
|
<div class="line"><a id="l01246" name="l01246"></a><span class="lineno"> 1246</span> <span class="keywordflow">if</span> (ReportStatus(true_status)) <span class="keywordflow">return</span> true_status;</div>
|
|
<div class="line"><a id="l01247" name="l01247"></a><span class="lineno"> 1247</span> <span class="keywordflow">if</span> (true_status == <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70bae5ba802809eb747ea486ca3fae32a885">SatSolver::ASSUMPTIONS_UNSAT</a>) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a id="l01248" name="l01248"></a><span class="lineno"> 1248</span> </div>
|
|
<div class="line"><a id="l01249" name="l01249"></a><span class="lineno"> 1249</span> <span class="keyword">const</span> <a class="code hl_enumeration" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">SatSolver::Status</a> false_status = ShaveLiteral(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>.Negated());</div>
|
|
<div class="line"><a id="l01250" name="l01250"></a><span class="lineno"> 1250</span> <span class="keywordflow">if</span> (ReportStatus(false_status)) <span class="keywordflow">return</span> false_status;</div>
|
|
<div class="line"><a id="l01251" name="l01251"></a><span class="lineno"> 1251</span> }</div>
|
|
<div class="line"><a id="l01252" name="l01252"></a><span class="lineno"> 1252</span> </div>
|
|
<div class="line"><a id="l01253" name="l01253"></a><span class="lineno"> 1253</span> LogStatistics();</div>
|
|
<div class="line"><a id="l01254" name="l01254"></a><span class="lineno"> 1254</span> }</div>
|
|
<div class="line"><a id="l01255" name="l01255"></a><span class="lineno"> 1255</span> </div>
|
|
<div class="line"><a id="l01256" name="l01256"></a><span class="lineno"> 1256</span> <span class="comment">// Adjust the active_limit.</span></div>
|
|
<div class="line"><a id="l01257" name="l01257"></a><span class="lineno"> 1257</span> {</div>
|
|
<div class="line"><a id="l01258" name="l01258"></a><span class="lineno"> 1258</span> <span class="keyword">const</span> <span class="keywordtype">double</span> deterministic_time =</div>
|
|
<div class="line"><a id="l01259" name="l01259"></a><span class="lineno"> 1259</span> parameters_.shaving_search_deterministic_time();</div>
|
|
<div class="line"><a id="l01260" name="l01260"></a><span class="lineno"> 1260</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> something_has_been_detected =</div>
|
|
<div class="line"><a id="l01261" name="l01261"></a><span class="lineno"> 1261</span> num_bounds_shaved_ != initial_num_bounds_shaved ||</div>
|
|
<div class="line"><a id="l01262" name="l01262"></a><span class="lineno"> 1262</span> prober_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_prober.html#aeb27667851805b5e52c68ff3ce0ed9cc">num_new_literals_fixed</a>() != initial_num_literals_fixed;</div>
|
|
<div class="line"><a id="l01263" name="l01263"></a><span class="lineno"> 1263</span> <span class="keywordflow">if</span> (something_has_been_detected) { <span class="comment">// Reset the limit.</span></div>
|
|
<div class="line"><a id="l01264" name="l01264"></a><span class="lineno"> 1264</span> active_limit_ = deterministic_time;</div>
|
|
<div class="line"><a id="l01265" name="l01265"></a><span class="lineno"> 1265</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (active_limit_ < 25 * deterministic_time) { <span class="comment">// Bump the limit.</span></div>
|
|
<div class="line"><a id="l01266" name="l01266"></a><span class="lineno"> 1266</span> active_limit_ += deterministic_time;</div>
|
|
<div class="line"><a id="l01267" name="l01267"></a><span class="lineno"> 1267</span> }</div>
|
|
<div class="line"><a id="l01268" name="l01268"></a><span class="lineno"> 1268</span> }</div>
|
|
<div class="line"><a id="l01269" name="l01269"></a><span class="lineno"> 1269</span> </div>
|
|
<div class="line"><a id="l01270" name="l01270"></a><span class="lineno"> 1270</span> ++iteration_;</div>
|
|
<div class="line"><a id="l01271" name="l01271"></a><span class="lineno"> 1271</span> current_bool_var_ = 0;</div>
|
|
<div class="line"><a id="l01272" name="l01272"></a><span class="lineno"> 1272</span> current_int_var_ = 0;</div>
|
|
<div class="line"><a id="l01273" name="l01273"></a><span class="lineno"> 1273</span> }</div>
|
|
<div class="line"><a id="l01274" name="l01274"></a><span class="lineno"> 1274</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba72c2402449caa8f3edc8aa0a3816baed">SatSolver::LIMIT_REACHED</a>;</div>
|
|
<div class="line"><a id="l01275" name="l01275"></a><span class="lineno"> 1275</span>}</div>
|
|
<div class="line"><a id="l01276" name="l01276"></a><span class="lineno"> 1276</span> </div>
|
|
<div class="line"><a id="l01277" name="l01277"></a><span class="lineno"> 1277</span><span class="keywordtype">bool</span> ContinuousProber::ImportFromSharedClasses() {</div>
|
|
<div class="line"><a id="l01278" name="l01278"></a><span class="lineno"> 1278</span> <span class="keywordflow">if</span> (!sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a9da38c8d2910442d551db5e360423029">ResetToLevelZero</a>()) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l01279" name="l01279"></a><span class="lineno"> 1279</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& cb : level_zero_callbacks_-><a class="code hl_variable" href="structoperations__research_1_1sat_1_1_level_zero_callback_helper.html#ac008fdb20ed4a9c84c490d4cbff755ac">callbacks</a>) {</div>
|
|
<div class="line"><a id="l01280" name="l01280"></a><span class="lineno"> 1280</span> <span class="keywordflow">if</span> (!cb()) {</div>
|
|
<div class="line"><a id="l01281" name="l01281"></a><span class="lineno"> 1281</span> sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a4f7251fc4692363cf55796a6f3e267ea">NotifyThatModelIsUnsat</a>();</div>
|
|
<div class="line"><a id="l01282" name="l01282"></a><span class="lineno"> 1282</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l01283" name="l01283"></a><span class="lineno"> 1283</span> }</div>
|
|
<div class="line"><a id="l01284" name="l01284"></a><span class="lineno"> 1284</span> }</div>
|
|
<div class="line"><a id="l01285" name="l01285"></a><span class="lineno"> 1285</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l01286" name="l01286"></a><span class="lineno"> 1286</span>}</div>
|
|
<div class="line"><a id="l01287" name="l01287"></a><span class="lineno"> 1287</span> </div>
|
|
<div class="line"><a id="l01288" name="l01288"></a><span class="lineno"> 1288</span><a class="code hl_enumeration" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">SatSolver::Status</a> ContinuousProber::ShaveLiteral(Literal <a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>) {</div>
|
|
<div class="line"><a id="l01289" name="l01289"></a><span class="lineno"> 1289</span> <span class="keyword">const</span> <span class="keyword">auto</span> [_, inserted] = probed_literals_.insert(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>.Index());</div>
|
|
<div class="line"><a id="l01290" name="l01290"></a><span class="lineno"> 1290</span> <span class="keywordflow">if</span> (trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#a4793952607a98dfddfbcc17abfabbb4b">Assignment</a>().<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#a142694366986039454f53b38e8378815">LiteralIsAssigned</a>(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>) || !inserted) {</div>
|
|
<div class="line"><a id="l01291" name="l01291"></a><span class="lineno"> 1291</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba72c2402449caa8f3edc8aa0a3816baed">SatSolver::LIMIT_REACHED</a>;</div>
|
|
<div class="line"><a id="l01292" name="l01292"></a><span class="lineno"> 1292</span> }</div>
|
|
<div class="line"><a id="l01293" name="l01293"></a><span class="lineno"> 1293</span> num_bounds_tried_++;</div>
|
|
<div class="line"><a id="l01294" name="l01294"></a><span class="lineno"> 1294</span> </div>
|
|
<div class="line"><a id="l01295" name="l01295"></a><span class="lineno"> 1295</span> <span class="keyword">const</span> <span class="keywordtype">double</span> original_dtime_limit = time_limit_-><a class="code hl_function" href="classoperations__research_1_1_time_limit.html#a75214ecbf18d3e29566c78cac35f699b">GetDeterministicLimit</a>();</div>
|
|
<div class="line"><a id="l01296" name="l01296"></a><span class="lineno"> 1296</span> time_limit_-><a class="code hl_function" href="classoperations__research_1_1_time_limit.html#af6b375b546e563ed7e6312123ce9c7a0">ChangeDeterministicLimit</a>(</div>
|
|
<div class="line"><a id="l01297" name="l01297"></a><span class="lineno"> 1297</span> <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(original_dtime_limit,</div>
|
|
<div class="line"><a id="l01298" name="l01298"></a><span class="lineno"> 1298</span> time_limit_-><a class="code hl_function" href="classoperations__research_1_1_time_limit.html#ac7e861414a70fc937d18bc7ca743fc98">GetElapsedDeterministicTime</a>() + active_limit_));</div>
|
|
<div class="line"><a id="l01299" name="l01299"></a><span class="lineno"> 1299</span> <span class="keyword">const</span> <a class="code hl_enumeration" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">SatSolver::Status</a> <a class="code hl_variable" href="g__gurobi_8cc.html#a2237393c7ae7ad7344c9885066d5ab6d">status</a> =</div>
|
|
<div class="line"><a id="l01300" name="l01300"></a><span class="lineno"> 1300</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a17b20b0845d9e02829d417294aded36a">ResetAndSolveIntegerProblem</a>({<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>}, model_);</div>
|
|
<div class="line"><a id="l01301" name="l01301"></a><span class="lineno"> 1301</span> time_limit_-><a class="code hl_function" href="classoperations__research_1_1_time_limit.html#af6b375b546e563ed7e6312123ce9c7a0">ChangeDeterministicLimit</a>(original_dtime_limit);</div>
|
|
<div class="line"><a id="l01302" name="l01302"></a><span class="lineno"> 1302</span> </div>
|
|
<div class="line"><a id="l01303" name="l01303"></a><span class="lineno"> 1303</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="g__gurobi_8cc.html#a2237393c7ae7ad7344c9885066d5ab6d">status</a> == <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70bae5ba802809eb747ea486ca3fae32a885">SatSolver::ASSUMPTIONS_UNSAT</a>) {</div>
|
|
<div class="line"><a id="l01304" name="l01304"></a><span class="lineno"> 1304</span> num_bounds_shaved_++;</div>
|
|
<div class="line"><a id="l01305" name="l01305"></a><span class="lineno"> 1305</span> }</div>
|
|
<div class="line"><a id="l01306" name="l01306"></a><span class="lineno"> 1306</span> </div>
|
|
<div class="line"><a id="l01307" name="l01307"></a><span class="lineno"> 1307</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="g__gurobi_8cc.html#a2237393c7ae7ad7344c9885066d5ab6d">status</a>;</div>
|
|
<div class="line"><a id="l01308" name="l01308"></a><span class="lineno"> 1308</span>}</div>
|
|
<div class="line"><a id="l01309" name="l01309"></a><span class="lineno"> 1309</span> </div>
|
|
<div class="line"><a id="l01310" name="l01310"></a><span class="lineno"> 1310</span><span class="keywordtype">bool</span> ContinuousProber::ReportStatus(<span class="keyword">const</span> <a class="code hl_enumeration" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">SatSolver::Status</a> <a class="code hl_variable" href="g__gurobi_8cc.html#a2237393c7ae7ad7344c9885066d5ab6d">status</a>) {</div>
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<div class="line"><a id="l01311" name="l01311"></a><span class="lineno"> 1311</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="g__gurobi_8cc.html#a2237393c7ae7ad7344c9885066d5ab6d">status</a> == <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba2884fa43446c0cbc9c7a9b74d41d7483">SatSolver::INFEASIBLE</a> || <a class="code hl_variable" href="g__gurobi_8cc.html#a2237393c7ae7ad7344c9885066d5ab6d">status</a> == <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba03f919221217f95d21a593a7120165e1">SatSolver::FEASIBLE</a>;</div>
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<div class="line"><a id="l01312" name="l01312"></a><span class="lineno"> 1312</span>}</div>
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<div class="line"><a id="l01313" name="l01313"></a><span class="lineno"> 1313</span> </div>
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<div class="line"><a id="l01314" name="l01314"></a><span class="lineno"> 1314</span><span class="keywordtype">void</span> ContinuousProber::LogStatistics() {</div>
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<div class="line"><a id="l01315" name="l01315"></a><span class="lineno"> 1315</span> <span class="keywordflow">if</span> (shared_response_manager_ == <span class="keyword">nullptr</span> ||</div>
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<div class="line"><a id="l01316" name="l01316"></a><span class="lineno"> 1316</span> shared_bounds_manager_ == <span class="keyword">nullptr</span>) {</div>
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<div class="line"><a id="l01317" name="l01317"></a><span class="lineno"> 1317</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l01318" name="l01318"></a><span class="lineno"> 1318</span> }</div>
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<div class="line"><a id="l01319" name="l01319"></a><span class="lineno"> 1319</span> shared_response_manager_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_shared_response_manager.html#a8836125c65463bdd48d3bce9263c0046">LogPeriodicMessage</a>(</div>
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<div class="line"><a id="l01320" name="l01320"></a><span class="lineno"> 1320</span> <span class="stringliteral">"Probe"</span>,</div>
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<div class="line"><a id="l01321" name="l01321"></a><span class="lineno"> 1321</span> absl::StrCat(<span class="stringliteral">"#iterations:"</span>, iteration_, <span class="stringliteral">" #literals fixed/probed:"</span>,</div>
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<div class="line"><a id="l01322" name="l01322"></a><span class="lineno"> 1322</span> prober_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_prober.html#aeb27667851805b5e52c68ff3ce0ed9cc">num_new_literals_fixed</a>(), <span class="stringliteral">"/"</span>, num_literals_probed_,</div>
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<div class="line"><a id="l01323" name="l01323"></a><span class="lineno"> 1323</span> <span class="stringliteral">" #bounds shaved/tried:"</span>, num_bounds_shaved_, <span class="stringliteral">"/"</span>,</div>
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<div class="line"><a id="l01324" name="l01324"></a><span class="lineno"> 1324</span> num_bounds_tried_, <span class="stringliteral">" #new_integer_bounds:"</span>,</div>
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<div class="line"><a id="l01325" name="l01325"></a><span class="lineno"> 1325</span> shared_bounds_manager_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_shared_bounds_manager.html#a9dffc97760da61a60048b452f4a3e55f">NumBoundsExported</a>(<span class="stringliteral">"probing"</span>),</div>
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<div class="line"><a id="l01326" name="l01326"></a><span class="lineno"> 1326</span> <span class="stringliteral">", #new_binary_clauses:"</span>, prober_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_prober.html#a4720b7143068320f293afff5c38e5ce6">num_new_binary_clauses</a>()),</div>
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<div class="line"><a id="l01327" name="l01327"></a><span class="lineno"> 1327</span> &last_logging_time_);</div>
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<div class="line"><a id="l01328" name="l01328"></a><span class="lineno"> 1328</span>}</div>
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<div class="line"><a id="l01329" name="l01329"></a><span class="lineno"> 1329</span> </div>
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<div class="line"><a id="l01330" name="l01330"></a><span class="lineno"> 1330</span>} <span class="comment">// namespace sat</span></div>
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<div class="line"><a id="l01331" name="l01331"></a><span class="lineno"> 1331</span>} <span class="comment">// namespace operations_research</span></div>
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<div class="ttc" id="aalldiff__cst_8cc_html_a26e6db9bcc64b584051ecc28171ed11f"><div class="ttname"><a href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">max</a></div><div class="ttdeci">int64_t max</div><div class="ttdef"><b>Definition:</b> <a href="alldiff__cst_8cc_source.html#l00140">alldiff_cst.cc:140</a></div></div>
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<div class="ttc" id="aalldiff__cst_8cc_html_ad10edae0a852d72fb76afb1c77735045"><div class="ttname"><a href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">min</a></div><div class="ttdeci">int64_t min</div><div class="ttdef"><b>Definition:</b> <a href="alldiff__cst_8cc_source.html#l00139">alldiff_cst.cc:139</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html"><div class="ttname"><a href="base_2logging_8h.html">logging.h</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a3e1cfef60e774a81f30eaddf26a3a274"><div class="ttname"><a href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a></div><div class="ttdeci">#define CHECK(condition)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00495">base/logging.h:495</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a4395e95bab44e222cb2e77251017a0e2"><div class="ttname"><a href="base_2logging_8h.html#a4395e95bab44e222cb2e77251017a0e2">DCHECK_LE</a></div><div class="ttdeci">#define DCHECK_LE(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00893">base/logging.h:893</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a4bd2e815ca2f702a4b6aa744b1ff3b82"><div class="ttname"><a href="base_2logging_8h.html#a4bd2e815ca2f702a4b6aa744b1ff3b82">CHECK_LT</a></div><div class="ttdeci">#define CHECK_LT(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00706">base/logging.h:706</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a7c0ce053b28d53aa4eaf3eb7fb71663b"><div class="ttname"><a href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a></div><div class="ttdeci">#define CHECK_EQ(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00703">base/logging.h:703</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_ab25e01a2942b821d66371fc68d53f2eb"><div class="ttname"><a href="base_2logging_8h.html#ab25e01a2942b821d66371fc68d53f2eb">CHECK_NE</a></div><div class="ttdeci">#define CHECK_NE(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00704">base/logging.h:704</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_ae17f8119c108cf3070bad3449c7e0006"><div class="ttname"><a href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a></div><div class="ttdeci">#define DCHECK(condition)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00890">base/logging.h:890</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_ae89df3243bbb8341130c7b3f44145ea0"><div class="ttname"><a href="base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a></div><div class="ttdeci">#define DCHECK_EQ(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00891">base/logging.h:891</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_afcaa7cadd41741bb855c2ada1d2ef927"><div class="ttname"><a href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a></div><div class="ttdeci">#define VLOG(verboselevel)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00984">base/logging.h:984</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_shared_time_limit_html_ad837e6231722ead53bbaf1c6e8f66032"><div class="ttname"><a href="classoperations__research_1_1_shared_time_limit.html#ad837e6231722ead53bbaf1c6e8f66032">operations_research::SharedTimeLimit::LimitReached</a></div><div class="ttdeci">bool LimitReached() const</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00370">time_limit.h:370</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_time_limit_html"><div class="ttname"><a href="classoperations__research_1_1_time_limit.html">operations_research::TimeLimit</a></div><div class="ttdoc">A simple class to enforce both an elapsed time limit and a deterministic time limit in the same threa...</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00106">time_limit.h:106</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_time_limit_html_a75214ecbf18d3e29566c78cac35f699b"><div class="ttname"><a href="classoperations__research_1_1_time_limit.html#a75214ecbf18d3e29566c78cac35f699b">operations_research::TimeLimit::GetDeterministicLimit</a></div><div class="ttdeci">double GetDeterministicLimit() const</div><div class="ttdoc">Queries the deterministic time limit.</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00304">time_limit.h:304</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_time_limit_html_a810d5f7aaf80cc09cf5a094e20c1aaca"><div class="ttname"><a href="classoperations__research_1_1_time_limit.html#a810d5f7aaf80cc09cf5a094e20c1aaca">operations_research::TimeLimit::LimitReached</a></div><div class="ttdeci">bool LimitReached()</div><div class="ttdoc">Returns true when the external limit is true, or the deterministic time is over the deterministic lim...</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00546">time_limit.h:546</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_time_limit_html_ac7e861414a70fc937d18bc7ca743fc98"><div class="ttname"><a href="classoperations__research_1_1_time_limit.html#ac7e861414a70fc937d18bc7ca743fc98">operations_research::TimeLimit::GetElapsedDeterministicTime</a></div><div class="ttdeci">double GetElapsedDeterministicTime() const</div><div class="ttdoc">Returns the elapsed deterministic time since the construction of this object.</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00261">time_limit.h:261</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_time_limit_html_af6b375b546e563ed7e6312123ce9c7a0"><div class="ttname"><a href="classoperations__research_1_1_time_limit.html#af6b375b546e563ed7e6312123ce9c7a0">operations_research::TimeLimit::ChangeDeterministicLimit</a></div><div class="ttdeci">void ChangeDeterministicLimit(double new_limit)</div><div class="ttdoc">Overwrites the deterministic time limit with the new value.</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00297">time_limit.h:297</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_continuous_prober_html_ae7eb5c14b3b5f8dc02b56e56a3fccfd8"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_continuous_prober.html#ae7eb5c14b3b5f8dc02b56e56a3fccfd8">operations_research::sat::ContinuousProber::Probe</a></div><div class="ttdeci">SatSolver::Status Probe()</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l01144">integer_search.cc:1144</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_continuous_prober_html_af733190053c056911f29cc2c4a125582"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_continuous_prober.html#af733190053c056911f29cc2c4a125582">operations_research::sat::ContinuousProber::ContinuousProber</a></div><div class="ttdeci">ContinuousProber(const CpModelProto &model_proto, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l01100">integer_search.cc:1100</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_mapping_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_mapping.html">operations_research::sat::CpModelMapping</a></div><div class="ttdef"><b>Definition:</b> <a href="cp__model__mapping_8h_source.html#l00066">cp_model_mapping.h:66</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_mapping_html_a922026cbae3cd7aac276fcad53bd4278"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_mapping.html#a922026cbae3cd7aac276fcad53bd4278">operations_research::sat::CpModelMapping::Literal</a></div><div class="ttdeci">sat::Literal Literal(int ref) const</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__mapping_8h_source.html#l00081">cp_model_mapping.h:81</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_implied_bounds_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_implied_bounds.html">operations_research::sat::ImpliedBounds</a></div><div class="ttdef"><b>Definition:</b> <a href="implied__bounds_8h_source.html#l00082">implied_bounds.h:82</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_implied_bounds_html_a0e2d0bf17ef8f8ea329a2faec4583377"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_implied_bounds.html#a0e2d0bf17ef8f8ea329a2faec4583377">operations_research::sat::ImpliedBounds::EnqueueNewDeductions</a></div><div class="ttdeci">bool EnqueueNewDeductions()</div><div class="ttdef"><b>Definition:</b> <a href="implied__bounds_8cc_source.html#l00246">implied_bounds.cc:246</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_implied_bounds_html_af55df3ca81000daf46c6096a71778c40"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_implied_bounds.html#af55df3ca81000daf46c6096a71778c40">operations_research::sat::ImpliedBounds::ProcessIntegerTrail</a></div><div class="ttdeci">void ProcessIntegerTrail(Literal first_decision)</div><div class="ttdef"><b>Definition:</b> <a href="implied__bounds_8cc_source.html#l00214">implied_bounds.cc:214</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_inprocessing_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_inprocessing.html">operations_research::sat::Inprocessing</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__inprocessing_8h_source.html#l00096">sat_inprocessing.h:96</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_inprocessing_html_a2e5437cb35da63545f954a80536023e0"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_inprocessing.html#a2e5437cb35da63545f954a80536023e0">operations_research::sat::Inprocessing::InprocessingRound</a></div><div class="ttdeci">bool InprocessingRound()</div><div class="ttdef"><b>Definition:</b> <a href="sat__inprocessing_8cc_source.html#l00158">sat_inprocessing.cc:158</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_encoder_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_encoder.html">operations_research::sat::IntegerEncoder</a></div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00362">integer.h:362</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_encoder_html_afcd4038298bec97a2f7a61274c6ef8c7"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_encoder.html#afcd4038298bec97a2f7a61274c6ef8c7">operations_research::sat::IntegerEncoder::GetOrCreateAssociatedLiteral</a></div><div class="ttdeci">Literal GetOrCreateAssociatedLiteral(IntegerLiteral i_lit)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cc_source.html#l00238">integer.cc:238</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_search_helper_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_search_helper.html">operations_research::sat::IntegerSearchHelper</a></div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00250">integer_search.h:250</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_search_helper_html_a3da0daf61b8c11b7503a7d8f49e964d8"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_search_helper.html#a3da0daf61b8c11b7503a7d8f49e964d8">operations_research::sat::IntegerSearchHelper::IntegerSearchHelper</a></div><div class="ttdeci">IntegerSearchHelper(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00780">integer_search.cc:780</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_search_helper_html_a918e2c1a7965a933b914ceaceb847a0c"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_search_helper.html#a918e2c1a7965a933b914ceaceb847a0c">operations_research::sat::IntegerSearchHelper::BeforeTakingDecision</a></div><div class="ttdeci">bool BeforeTakingDecision()</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00793">integer_search.cc:793</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_search_helper_html_aaad5f63041d2eb2fee1a5b6d1cac8424"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_search_helper.html#aaad5f63041d2eb2fee1a5b6d1cac8424">operations_research::sat::IntegerSearchHelper::TakeDecision</a></div><div class="ttdeci">bool TakeDecision(Literal decision)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00879">integer_search.cc:879</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_search_helper_html_ab47c89fedb27c73cf9ab768b913d1dfe"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_search_helper.html#ab47c89fedb27c73cf9ab768b913d1dfe">operations_research::sat::IntegerSearchHelper::GetDecision</a></div><div class="ttdeci">LiteralIndex GetDecision(const std::function< BooleanOrIntegerLiteral()> &f)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00828">integer_search.cc:828</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html">operations_research::sat::IntegerTrail</a></div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00620">integer.h:620</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_a05cc8990d6a349e0c5960019ee47b687"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#a05cc8990d6a349e0c5960019ee47b687">operations_research::sat::IntegerTrail::FirstUnassignedVariable</a></div><div class="ttdeci">IntegerVariable FirstUnassignedVariable() const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cc_source.html#l01265">integer.cc:1265</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_a309d057e12c8d4d393f13975eea2e2a9"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#a309d057e12c8d4d393f13975eea2e2a9">operations_research::sat::IntegerTrail::IsCurrentlyIgnored</a></div><div class="ttdeci">bool IsCurrentlyIgnored(IntegerVariable i) const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00705">integer.h:705</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_a523501d854b2ca8034d37c15e7c89117"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#a523501d854b2ca8034d37c15e7c89117">operations_research::sat::IntegerTrail::IsFixed</a></div><div class="ttdeci">bool IsFixed(IntegerVariable i) const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01453">integer.h:1453</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_a6554c3addb8705b1ba60140a175de110"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#a6554c3addb8705b1ba60140a175de110">operations_research::sat::IntegerTrail::CurrentBranchHadAnIncompletePropagation</a></div><div class="ttdeci">bool CurrentBranchHadAnIncompletePropagation()</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cc_source.html#l01261">integer.cc:1261</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_a697964c4df6330b5d4720be3658ac35a"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#a697964c4df6330b5d4720be3658ac35a">operations_research::sat::IntegerTrail::InPropagationLoop</a></div><div class="ttdeci">bool InPropagationLoop() const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cc_source.html#l01222">integer.cc:1222</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_a8ae8e206270e3bb10251a6fadbdc06e7"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#a8ae8e206270e3bb10251a6fadbdc06e7">operations_research::sat::IntegerTrail::NextVariableToBranchOnInPropagationLoop</a></div><div class="ttdeci">IntegerVariable NextVariableToBranchOnInPropagationLoop() const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cc_source.html#l01232">integer.cc:1232</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_a8b6d5a25e6ad3d28a85b1924471e2cac"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac">operations_research::sat::IntegerTrail::UpperBound</a></div><div class="ttdeci">IntegerValue UpperBound(IntegerVariable i) const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01449">integer.h:1449</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_a8ef12397d1682615bc3108c397734179"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#a8ef12397d1682615bc3108c397734179">operations_research::sat::IntegerTrail::Index</a></div><div class="ttdeci">int Index() const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00951">integer.h:951</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_ab857cd2aead68952d9fe92a8ad8d3ac9"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9">operations_research::sat::IntegerTrail::LowerBound</a></div><div class="ttdeci">IntegerValue LowerBound(IntegerVariable i) const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01445">integer.h:1445</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_ac4fc75eea42e935951c766549cf8aa3c"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#ac4fc75eea42e935951c766549cf8aa3c">operations_research::sat::IntegerTrail::HasPendingRootLevelDeduction</a></div><div class="ttdeci">bool HasPendingRootLevelDeduction() const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00978">integer.h:978</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_acc1aaae243ed4381e84f8309aacb3bbc"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#acc1aaae243ed4381e84f8309aacb3bbc">operations_research::sat::IntegerTrail::IsOptional</a></div><div class="ttdeci">bool IsOptional(IntegerVariable i) const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00702">integer.h:702</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_intervals_repository_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_intervals_repository.html">operations_research::sat::IntervalsRepository</a></div><div class="ttdef"><b>Definition:</b> <a href="intervals_8h_source.html#l00050">intervals.h:50</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_programming_constraint_collection_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_programming_constraint_collection.html">operations_research::sat::LinearProgrammingConstraintCollection</a></div><div class="ttdef"><b>Definition:</b> <a href="linear__programming__constraint_8h_source.html#l00572">linear_programming_constraint.h:573</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_programming_constraint_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_programming_constraint.html">operations_research::sat::LinearProgrammingConstraint</a></div><div class="ttdef"><b>Definition:</b> <a href="linear__programming__constraint_8h_source.html#l00137">linear_programming_constraint.h:138</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_programming_constraint_html_a460fe5216ff7f997841e588d432be744"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_programming_constraint.html#a460fe5216ff7f997841e588d432be744">operations_research::sat::LinearProgrammingConstraint::GetSolutionValue</a></div><div class="ttdeci">double GetSolutionValue(IntegerVariable variable) const</div><div class="ttdef"><b>Definition:</b> <a href="linear__programming__constraint_8cc_source.html#l00636">linear_programming_constraint.cc:636</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_programming_constraint_html_a700f8f1db38fcb59cab04ff2d75a915f"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_programming_constraint.html#a700f8f1db38fcb59cab04ff2d75a915f">operations_research::sat::LinearProgrammingConstraint::SolutionIsInteger</a></div><div class="ttdeci">bool SolutionIsInteger() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__programming__constraint_8h_source.html#l00168">linear_programming_constraint.h:168</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_programming_constraint_html_ac7edc397b78de116072e89fe0ad89266"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_programming_constraint.html#ac7edc397b78de116072e89fe0ad89266">operations_research::sat::LinearProgrammingConstraint::HasSolution</a></div><div class="ttdeci">bool HasSolution() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__programming__constraint_8h_source.html#l00164">linear_programming_constraint.h:164</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_programming_dispatcher_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_programming_dispatcher.html">operations_research::sat::LinearProgrammingDispatcher</a></div><div class="ttdef"><b>Definition:</b> <a href="linear__programming__constraint_8h_source.html#l00564">linear_programming_constraint.h:566</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_literal_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_literal.html">operations_research::sat::Literal</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00067">sat_base.h:67</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_literal_html_a4a11c7c4d7706c09de5e18707c3b5c62"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_literal.html#a4a11c7c4d7706c09de5e18707c3b5c62">operations_research::sat::Literal::Index</a></div><div class="ttdeci">LiteralIndex Index() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00087">sat_base.h:87</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_literal_html_a6a5dcff82096cd7a7147bf996dbaa5a8"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_literal.html#a6a5dcff82096cd7a7147bf996dbaa5a8">operations_research::sat::Literal::Variable</a></div><div class="ttdeci">BooleanVariable Variable() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00083">sat_base.h:83</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_literal_html_a764be64f3029f8b8e23511061d8de355"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_literal.html#a764be64f3029f8b8e23511061d8de355">operations_research::sat::Literal::DebugString</a></div><div class="ttdeci">std::string DebugString() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00096">sat_base.h:96</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_model_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_model.html">operations_research::sat::Model</a></div><div class="ttdoc">Class that owns everything related to a particular optimization model.</div><div class="ttdef"><b>Definition:</b> <a href="sat_2model_8h_source.html#l00042">sat/model.h:42</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_model_html_a8546382b04c2126bd39cc17d72d0b5a2"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_model.html#a8546382b04c2126bd39cc17d72d0b5a2">operations_research::sat::Model::Name</a></div><div class="ttdeci">const std::string & Name() const</div><div class="ttdef"><b>Definition:</b> <a href="sat_2model_8h_source.html#l00179">sat/model.h:179</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_model_html_afb0c03e2a6201677c266f8a7eb77c2dc"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_model.html#afb0c03e2a6201677c266f8a7eb77c2dc">operations_research::sat::Model::GetOrCreate</a></div><div class="ttdeci">T * GetOrCreate()</div><div class="ttdoc">Returns an object of type T that is unique to this model (like a "local" singleton).</div><div class="ttdef"><b>Definition:</b> <a href="sat_2model_8h_source.html#l00110">sat/model.h:110</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_model_random_generator_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_model_random_generator.html">operations_research::sat::ModelRandomGenerator</a></div><div class="ttdef"><b>Definition:</b> <a href="sat_2util_8h_source.html#l00115">sat/util.h:115</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_prober_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_prober.html">operations_research::sat::Prober</a></div><div class="ttdef"><b>Definition:</b> <a href="probing_8h_source.html#l00037">probing.h:37</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_prober_html_a4720b7143068320f293afff5c38e5ce6"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_prober.html#a4720b7143068320f293afff5c38e5ce6">operations_research::sat::Prober::num_new_binary_clauses</a></div><div class="ttdeci">int num_new_binary_clauses() const</div><div class="ttdef"><b>Definition:</b> <a href="probing_8h_source.html#l00087">probing.h:87</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_prober_html_a7d6a8a15f30eb61684dbad769f7a557f"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_prober.html#a7d6a8a15f30eb61684dbad769f7a557f">operations_research::sat::Prober::ProbeOneVariable</a></div><div class="ttdeci">bool ProbeOneVariable(BooleanVariable b)</div><div class="ttdef"><b>Definition:</b> <a href="probing_8cc_source.html#l00190">probing.cc:190</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_prober_html_aeb27667851805b5e52c68ff3ce0ed9cc"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_prober.html#aeb27667851805b5e52c68ff3ce0ed9cc">operations_research::sat::Prober::num_new_literals_fixed</a></div><div class="ttdeci">int num_new_literals_fixed() const</div><div class="ttdef"><b>Definition:</b> <a href="probing_8h_source.html#l00086">probing.h:86</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_pseudo_costs_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_pseudo_costs.html">operations_research::sat::PseudoCosts</a></div><div class="ttdef"><b>Definition:</b> <a href="pseudo__costs_8h_source.html#l00033">pseudo_costs.h:33</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_pseudo_costs_html_aa64c6ffef5c1b7402acad774c70bab08"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_pseudo_costs.html#aa64c6ffef5c1b7402acad774c70bab08">operations_research::sat::PseudoCosts::UpdateCost</a></div><div class="ttdeci">void UpdateCost(const std::vector< VariableBoundChange > &bound_changes, IntegerValue obj_bound_improvement)</div><div class="ttdef"><b>Definition:</b> <a href="pseudo__costs_8cc_source.html#l00049">pseudo_costs.cc:49</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_restart_policy_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_restart_policy.html">operations_research::sat::RestartPolicy</a></div><div class="ttdef"><b>Definition:</b> <a href="restart_8h_source.html#l00031">restart.h:31</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_restart_policy_html_a9a4dbc2c6849f437d4f08288eeffbfed"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_restart_policy.html#a9a4dbc2c6849f437d4f08288eeffbfed">operations_research::sat::RestartPolicy::ShouldRestart</a></div><div class="ttdeci">bool ShouldRestart()</div><div class="ttdef"><b>Definition:</b> <a href="restart_8cc_source.html#l00088">restart.cc:88</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_decision_policy_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_decision_policy.html">operations_research::sat::SatDecisionPolicy</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__decision_8h_source.html#l00036">sat_decision.h:36</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html">operations_research::sat::SatSolver</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00061">sat_solver.h:61</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a4793952607a98dfddfbcc17abfabbb4b"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a4793952607a98dfddfbcc17abfabbb4b">operations_research::sat::SatSolver::Assignment</a></div><div class="ttdeci">const VariablesAssignment & Assignment() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00378">sat_solver.h:378</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a4f7251fc4692363cf55796a6f3e267ea"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a4f7251fc4692363cf55796a6f3e267ea">operations_research::sat::SatSolver::NotifyThatModelIsUnsat</a></div><div class="ttdeci">void NotifyThatModelIsUnsat()</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00417">sat_solver.h:417</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a5bbe13ebae8aa11a8a4ac1cb01bc66ad"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a5bbe13ebae8aa11a8a4ac1cb01bc66ad">operations_research::sat::SatSolver::UnsatStatus</a></div><div class="ttdeci">Status UnsatStatus() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00325">sat_solver.h:325</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a607d97ccada862073f297bc2d495124d"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a607d97ccada862073f297bc2d495124d">operations_research::sat::SatSolver::FinishPropagation</a></div><div class="ttdeci">bool FinishPropagation()</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00561">sat_solver.cc:561</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a67a0db04d321a74b7e7fcfd3f1a3f70b"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">operations_research::sat::SatSolver::Status</a></div><div class="ttdeci">Status</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00183">sat_solver.h:183</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a67a0db04d321a74b7e7fcfd3f1a3f70ba03f919221217f95d21a593a7120165e1"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba03f919221217f95d21a593a7120165e1">operations_research::sat::SatSolver::FEASIBLE</a></div><div class="ttdeci">@ FEASIBLE</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00186">sat_solver.h:186</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a67a0db04d321a74b7e7fcfd3f1a3f70ba2884fa43446c0cbc9c7a9b74d41d7483"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba2884fa43446c0cbc9c7a9b74d41d7483">operations_research::sat::SatSolver::INFEASIBLE</a></div><div class="ttdeci">@ INFEASIBLE</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00185">sat_solver.h:185</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a67a0db04d321a74b7e7fcfd3f1a3f70ba72c2402449caa8f3edc8aa0a3816baed"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70ba72c2402449caa8f3edc8aa0a3816baed">operations_research::sat::SatSolver::LIMIT_REACHED</a></div><div class="ttdeci">@ LIMIT_REACHED</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00187">sat_solver.h:187</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a67a0db04d321a74b7e7fcfd3f1a3f70bae5ba802809eb747ea486ca3fae32a885"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70bae5ba802809eb747ea486ca3fae32a885">operations_research::sat::SatSolver::ASSUMPTIONS_UNSAT</a></div><div class="ttdeci">@ ASSUMPTIONS_UNSAT</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00184">sat_solver.h:184</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a705eddd5baee23097daf34b73e66eae3"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a705eddd5baee23097daf34b73e66eae3">operations_research::sat::SatSolver::AdvanceDeterministicTime</a></div><div class="ttdeci">void AdvanceDeterministicTime(TimeLimit *limit)</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00444">sat_solver.h:444</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a9ae69b015a43c1a94e8815ab0dd8189c"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a9ae69b015a43c1a94e8815ab0dd8189c">operations_research::sat::SatSolver::EnqueueDecisionAndBackjumpOnConflict</a></div><div class="ttdeci">int EnqueueDecisionAndBackjumpOnConflict(Literal true_literal)</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00536">sat_solver.cc:536</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a9d3beb2afe4ae647674b054bf29290e2"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a9d3beb2afe4ae647674b054bf29290e2">operations_research::sat::SatSolver::NumVariables</a></div><div class="ttdeci">int NumVariables() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00086">sat_solver.h:86</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a9da38c8d2910442d551db5e360423029"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a9da38c8d2910442d551db5e360423029">operations_research::sat::SatSolver::ResetToLevelZero</a></div><div class="ttdeci">bool ResetToLevelZero()</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00579">sat_solver.cc:579</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_ac035378cea0ed7b0978105547402faa8"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#ac035378cea0ed7b0978105547402faa8">operations_research::sat::SatSolver::Backtrack</a></div><div class="ttdeci">void Backtrack(int target_level)</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00991">sat_solver.cc:991</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_ac714aeb75f0f6dd87e52e5d1a0d6edc7"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#ac714aeb75f0f6dd87e52e5d1a0d6edc7">operations_research::sat::SatSolver::RestoreSolverToAssumptionLevel</a></div><div class="ttdeci">bool RestoreSolverToAssumptionLevel()</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00551">sat_solver.cc:551</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_acace892b69b55e3ee219e2893f34ef8f"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#acace892b69b55e3ee219e2893f34ef8f">operations_research::sat::SatSolver::num_failures</a></div><div class="ttdeci">int64_t num_failures() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00105">sat_solver.cc:105</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_ad28cbdd5735a0c111a642f39524d969e"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#ad28cbdd5735a0c111a642f39524d969e">operations_research::sat::SatSolver::ReapplyAssumptionsIfNeeded</a></div><div class="ttdeci">bool ReapplyAssumptionsIfNeeded()</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00604">sat_solver.cc:604</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_ad4494c6831942d344ed1d9758f0e6cd9"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#ad4494c6831942d344ed1d9758f0e6cd9">operations_research::sat::SatSolver::ResetWithGivenAssumptions</a></div><div class="ttdeci">bool ResetWithGivenAssumptions(const std::vector< Literal > &assumptions)</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00587">sat_solver.cc:587</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_ad63c4461a1384629cb99413c6df8b9ca"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#ad63c4461a1384629cb99413c6df8b9ca">operations_research::sat::SatSolver::CurrentDecisionLevel</a></div><div class="ttdeci">int CurrentDecisionLevel() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00376">sat_solver.h:376</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_shared_bounds_manager_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_shared_bounds_manager.html">operations_research::sat::SharedBoundsManager</a></div><div class="ttdef"><b>Definition:</b> <a href="synchronization_8h_source.html#l00425">synchronization.h:425</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_shared_bounds_manager_html_a9dffc97760da61a60048b452f4a3e55f"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_shared_bounds_manager.html#a9dffc97760da61a60048b452f4a3e55f">operations_research::sat::SharedBoundsManager::NumBoundsExported</a></div><div class="ttdeci">int NumBoundsExported(const std::string &worker_name)</div><div class="ttdef"><b>Definition:</b> <a href="synchronization_8cc_source.html#l00894">synchronization.cc:894</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_shared_l_p_solution_repository_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_shared_l_p_solution_repository.html">operations_research::sat::SharedLPSolutionRepository</a></div><div class="ttdef"><b>Definition:</b> <a href="synchronization_8h_source.html#l00147">synchronization.h:147</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_shared_relaxation_solution_repository_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_shared_relaxation_solution_repository.html">operations_research::sat::SharedRelaxationSolutionRepository</a></div><div class="ttdef"><b>Definition:</b> <a href="synchronization_8h_source.html#l00138">synchronization.h:139</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_shared_response_manager_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_shared_response_manager.html">operations_research::sat::SharedResponseManager</a></div><div class="ttdef"><b>Definition:</b> <a href="synchronization_8h_source.html#l00181">synchronization.h:181</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_shared_response_manager_html_a8836125c65463bdd48d3bce9263c0046"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_shared_response_manager.html#a8836125c65463bdd48d3bce9263c0046">operations_research::sat::SharedResponseManager::LogPeriodicMessage</a></div><div class="ttdeci">void LogPeriodicMessage(const std::string &prefix, const std::string &message, absl::Time *last_logging_time)</div><div class="ttdef"><b>Definition:</b> <a href="synchronization_8cc_source.html#l00167">synchronization.cc:167</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_shared_solution_repository_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_shared_solution_repository.html">operations_research::sat::SharedSolutionRepository< int64_t ></a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_shared_solution_repository_html_a6d2b6f7951b60c786fdbefcbe7c3571f"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_shared_solution_repository.html#a6d2b6f7951b60c786fdbefcbe7c3571f">operations_research::sat::SharedSolutionRepository::NumSolutions</a></div><div class="ttdeci">int NumSolutions() const</div><div class="ttdef"><b>Definition:</b> <a href="synchronization_8h_source.html#l00524">synchronization.h:524</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_shared_solution_repository_html_ad3280cfa83b844b02b9194550b18b058"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_shared_solution_repository.html#ad3280cfa83b844b02b9194550b18b058">operations_research::sat::SharedSolutionRepository::GetVariableValueInSolution</a></div><div class="ttdeci">ValueType GetVariableValueInSolution(int var_index, int solution_index) const</div><div class="ttdef"><b>Definition:</b> <a href="synchronization_8h_source.html#l00537">synchronization.h:537</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_trail_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_trail.html">operations_research::sat::Trail</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00236">sat_base.h:236</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_trail_html_a4793952607a98dfddfbcc17abfabbb4b"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_trail.html#a4793952607a98dfddfbcc17abfabbb4b">operations_research::sat::Trail::Assignment</a></div><div class="ttdeci">const VariablesAssignment & Assignment() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00383">sat_base.h:383</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_variables_assignment_html_a142694366986039454f53b38e8378815"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_variables_assignment.html#a142694366986039454f53b38e8378815">operations_research::sat::VariablesAssignment::LiteralIsAssigned</a></div><div class="ttdeci">bool LiteralIsAssigned(Literal literal) const</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00156">sat_base.h:156</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_variables_assignment_html_a49e751eb6f0e9babd957889bb8e7472d"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_variables_assignment.html#a49e751eb6f0e9babd957889bb8e7472d">operations_research::sat::VariablesAssignment::VariableIsAssigned</a></div><div class="ttdeci">bool VariableIsAssigned(BooleanVariable var) const</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00161">sat_base.h:161</a></div></div>
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<div class="ttc" id="acp__model__fz__solver_8cc_html_a10a1eab179b472c030bdc2a2efef7219"><div class="ttname"><a href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a></div><div class="ttdeci">SatParameters parameters</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__fz__solver_8cc_source.html#l00119">cp_model_fz_solver.cc:119</a></div></div>
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<div class="ttc" id="acp__model__mapping_8h_html"><div class="ttname"><a href="cp__model__mapping_8h.html">cp_model_mapping.h</a></div></div>
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<div class="ttc" id="acp__model__solver_8cc_html_a2a2278bd1fb787198e496b7d443a05e8"><div class="ttname"><a href="cp__model__solver_8cc.html#a2a2278bd1fb787198e496b7d443a05e8">relaxation_solutions</a></div><div class="ttdeci">SharedRelaxationSolutionRepository * relaxation_solutions</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__solver_8cc_source.html#l02053">cp_model_solver.cc:2053</a></div></div>
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<div class="ttc" id="acp__model__solver_8cc_html_a6ac76d8a372013f67c4973012948ec84"><div class="ttname"><a href="cp__model__solver_8cc.html#a6ac76d8a372013f67c4973012948ec84">model_proto</a></div><div class="ttdeci">CpModelProto const * model_proto</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__solver_8cc_source.html#l02048">cp_model_solver.cc:2048</a></div></div>
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<div class="ttc" id="acp__model__solver_8cc_html_aec8af5c1be4e1b6d4330e1161028de21"><div class="ttname"><a href="cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21">time_limit</a></div><div class="ttdeci">ModelSharedTimeLimit * time_limit</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__solver_8cc_source.html#l02050">cp_model_solver.cc:2050</a></div></div>
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<div class="ttc" id="ademon__profiler_8cc_html_a05da18ca9c7b657a4a6ea24e07c9b695"><div class="ttname"><a href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a></div><div class="ttdeci">const Constraint * ct</div><div class="ttdef"><b>Definition:</b> <a href="demon__profiler_8cc_source.html#l00043">demon_profiler.cc:43</a></div></div>
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<div class="ttc" id="ademon__profiler_8cc_html_ac072af30c4ffbc834bb4c681f6ecb514"><div class="ttname"><a href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a></div><div class="ttdeci">int64_t value</div><div class="ttdef"><b>Definition:</b> <a href="demon__profiler_8cc_source.html#l00044">demon_profiler.cc:44</a></div></div>
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<div class="ttc" id="aexpr__array_8cc_html_a472a99923cbe11ae7b5a5d157d9ad465"><div class="ttname"><a href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a></div><div class="ttdeci">IntVar * var</div><div class="ttdef"><b>Definition:</b> <a href="expr__array_8cc_source.html#l01874">expr_array.cc:1874</a></div></div>
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<div class="ttc" id="ag__gurobi_8cc_html_a2237393c7ae7ad7344c9885066d5ab6d"><div class="ttname"><a href="g__gurobi_8cc.html#a2237393c7ae7ad7344c9885066d5ab6d">status</a></div><div class="ttdeci">absl::Status status</div><div class="ttdef"><b>Definition:</b> <a href="g__gurobi_8cc_source.html#l00035">g_gurobi.cc:35</a></div></div>
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<div class="ttc" id="agurobi__interface_8cc_html_a0728f23c9a47655d38e0bf1a2f200bcf"><div class="ttname"><a href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a></div><div class="ttdeci">GRBmodel * model</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__interface_8cc_source.html#l00274">gurobi_interface.cc:274</a></div></div>
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<div class="ttc" id="aimplied__bounds_8h_html"><div class="ttname"><a href="implied__bounds_8h.html">implied_bounds.h</a></div></div>
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<div class="ttc" id="ainteger_8h_html"><div class="ttname"><a href="integer_8h.html">integer.h</a></div></div>
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<div class="ttc" id="ainteger__search_8h_html"><div class="ttname"><a href="integer__search_8h.html">integer_search.h</a></div></div>
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<div class="ttc" id="aintervals_8h_html"><div class="ttname"><a href="intervals_8h.html">intervals.h</a></div></div>
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<div class="ttc" id="alinear__programming__constraint_8h_html"><div class="ttname"><a href="linear__programming__constraint_8h.html">linear_programming_constraint.h</a></div></div>
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<div class="ttc" id="alocal__search_8cc_html_a750b5d744c39a06bfb13e6eb010e35d0"><div class="ttname"><a href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a></div><div class="ttdeci">int index</div><div class="ttdef"><b>Definition:</b> <a href="local__search_8cc_source.html#l02750">local_search.cc:2750</a></div></div>
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<div class="ttc" id="amap__util_8h_html"><div class="ttname"><a href="map__util_8h.html">map_util.h</a></div></div>
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<div class="ttc" id="anamespacegtl_html_a795ebdb62731938c8c31b221f0f074b4"><div class="ttname"><a href="namespacegtl.html#a795ebdb62731938c8c31b221f0f074b4">gtl::FindWithDefault</a></div><div class="ttdeci">const Collection::value_type::second_type & FindWithDefault(const Collection &collection, const typename Collection::value_type::first_type &key, const typename Collection::value_type::second_type &value)</div><div class="ttdef"><b>Definition:</b> <a href="map__util_8h_source.html#l00029">map_util.h:29</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_ac89c7b45754e9a6bdabc08bea586fc4e"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#ac89c7b45754e9a6bdabc08bea586fc4e">operations_research::glop::Index</a></div><div class="ttdeci">int32_t Index</div><div class="ttdef"><b>Definition:</b> <a href="lp__types_8h_source.html#l00038">lp_types.h:38</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a0441e1a54fe203c0707131e587de8fae"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a0441e1a54fe203c0707131e587de8fae">operations_research::sat::RandomizeDecisionHeuristic</a></div><div class="ttdeci">void RandomizeDecisionHeuristic(absl::BitGenRef random, SatParameters *parameters)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2util_8cc_source.html#l00059">sat/util.cc:59</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a04f971e1062428f1b552f1f6295da939"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a04f971e1062428f1b552f1f6295da939">operations_research::sat::CompleteHeuristics</a></div><div class="ttdeci">std::vector< std::function< BooleanOrIntegerLiteral()> > CompleteHeuristics(const std::vector< std::function< BooleanOrIntegerLiteral()> > &incomplete_heuristics, const std::function< BooleanOrIntegerLiteral()> &completion_heuristic)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00767">integer_search.cc:767</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a0b08971dbb223f77e7fc9c41a77fdc7b"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a0b08971dbb223f77e7fc9c41a77fdc7b">operations_research::sat::FirstUnassignedVarAtItsMinHeuristic</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> FirstUnassignedVarAtItsMinHeuristic(const std::vector< IntegerVariable > &vars, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00167">integer_search.cc:167</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a1227e67513602591fb959e35c9de66e8"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a1227e67513602591fb959e35c9de66e8">operations_research::sat::kMaxIntegerValue</a></div><div class="ttdeci">constexpr IntegerValue kMaxIntegerValue(std::numeric_limits< IntegerValue::ValueType >::max() - 1)</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a17b20b0845d9e02829d417294aded36a"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a17b20b0845d9e02829d417294aded36a">operations_research::sat::ResetAndSolveIntegerProblem</a></div><div class="ttdeci">SatSolver::Status ResetAndSolveIntegerProblem(const std::vector< Literal > &assumptions, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l01062">integer_search.cc:1062</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a1e222e7822b62559452fb087e852bcf0"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a1e222e7822b62559452fb087e852bcf0">operations_research::sat::SequentialValueSelection</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> SequentialValueSelection(std::vector< std::function< IntegerLiteral(IntegerVariable)> > value_selection_heuristics, std::function< BooleanOrIntegerLiteral()> var_selection_heuristic, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00213">integer_search.cc:213</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a2acd1aef8e418e20032fd893668c04a6"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a2acd1aef8e418e20032fd893668c04a6">operations_research::sat::SequentialSearch</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> SequentialSearch(std::vector< std::function< BooleanOrIntegerLiteral()> > heuristics)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00202">integer_search.cc:202</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a2dbcb7017d468a17bdb30252af5c6c31"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">operations_research::sat::kNoLiteralIndex</a></div><div class="ttdeci">const LiteralIndex kNoLiteralIndex(-1)</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a304417ca7c3964cc928b771620b2dc53"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a304417ca7c3964cc928b771620b2dc53">operations_research::sat::AtMinValue</a></div><div class="ttdeci">IntegerLiteral AtMinValue(IntegerVariable var, IntegerTrail *integer_trail)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00053">integer_search.cc:53</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a334bf93d91912354ff5d0f161a64c273"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a334bf93d91912354ff5d0f161a64c273">operations_research::sat::RecordLPRelaxationValues</a></div><div class="ttdeci">void RecordLPRelaxationValues(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="rins_8cc_source.html#l00033">rins.cc:33</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a3f4df9da99787316bfb5029b7a6b92b7"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a3f4df9da99787316bfb5029b7a6b92b7">operations_research::sat::GreaterOrEqualToMiddleValue</a></div><div class="ttdeci">IntegerLiteral GreaterOrEqualToMiddleValue(IntegerVariable var, IntegerTrail *integer_trail)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00073">integer_search.cc:73</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a46cb4c07c4971a99724693260c92fd5b"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a46cb4c07c4971a99724693260c92fd5b">operations_research::sat::SplitAroundGivenValue</a></div><div class="ttdeci">IntegerLiteral SplitAroundGivenValue(IntegerVariable var, IntegerValue value, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00084">integer_search.cc:84</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a4713f8fb7e1ccddece18a374886ad866"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a4713f8fb7e1ccddece18a374886ad866">operations_research::sat::UnassignedVarWithLowestMinAtItsMinHeuristic</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> UnassignedVarWithLowestMinAtItsMinHeuristic(const std::vector< IntegerVariable > &vars, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00182">integer_search.cc:182</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a48d1aae59a778d6f39609f9add7cd0a5"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a48d1aae59a778d6f39609f9add7cd0a5">operations_research::sat::SolveIntegerProblemWithLazyEncoding</a></div><div class="ttdeci">SatSolver::Status SolveIntegerProblemWithLazyEncoding(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l01083">integer_search.cc:1083</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a527a6ee26b7f573def70daf9b2a9e577"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a527a6ee26b7f573def70daf9b2a9e577">operations_research::sat::SatSolverRestartPolicy</a></div><div class="ttdeci">std::function< bool()> SatSolverRestartPolicy(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00641">integer_search.cc:641</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a5316808a2d5007c3b489e844801385e5"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a5316808a2d5007c3b489e844801385e5">operations_research::sat::kMinIntegerValue</a></div><div class="ttdeci">constexpr IntegerValue kMinIntegerValue(-kMaxIntegerValue.value())</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a5bd8c44473618b7eafd33ba978db2f06"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06">operations_research::sat::kNoIntegerVariable</a></div><div class="ttdeci">const IntegerVariable kNoIntegerVariable(-1)</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a5c07862681284286ab67401730668f38"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a5c07862681284286ab67401730668f38">operations_research::sat::FollowHint</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> FollowHint(const std::vector< BooleanOrIntegerVariable > &vars, const std::vector< IntegerValue > &values, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00597">integer_search.cc:597</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a5fcdf1d56a24d096d0c381a9708d4fa9"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a5fcdf1d56a24d096d0c381a9708d4fa9">operations_research::sat::RestartEveryKFailures</a></div><div class="ttdeci">std::function< bool()> RestartEveryKFailures(int k, SatSolver *solver)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00627">integer_search.cc:627</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a6c01e08a9089e0d5fed2507f479bbadc"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a6c01e08a9089e0d5fed2507f479bbadc">operations_research::sat::SchedulingSearchHeuristic</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> SchedulingSearchHeuristic(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00365">integer_search.cc:365</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a71fa416b44768076a0e7dd7777ab433d"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a71fa416b44768076a0e7dd7777ab433d">operations_research::sat::ChooseBestObjectiveValue</a></div><div class="ttdeci">IntegerLiteral ChooseBestObjectiveValue(IntegerVariable var, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00061">integer_search.cc:61</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a7ac1d9dc3254d77ade7bdbf984884b7e"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a7ac1d9dc3254d77ade7bdbf984884b7e">operations_research::sat::ConfigureSearchHeuristics</a></div><div class="ttdeci">void ConfigureSearchHeuristics(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00655">integer_search.cc:655</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a7f1ac774d4646a83631f8117f4ea03f5"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a7f1ac774d4646a83631f8117f4ea03f5">operations_research::sat::PositiveVariable</a></div><div class="ttdeci">IntegerVariable PositiveVariable(IntegerVariable i)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00149">integer.h:149</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a88ab44e20ce09e9942f6b8411452df27"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a88ab44e20ce09e9942f6b8411452df27">operations_research::sat::IntegerValueSelectionHeuristic</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> IntegerValueSelectionHeuristic(std::function< BooleanOrIntegerLiteral()> var_selection_heuristic, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00273">integer_search.cc:273</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a8bea9a6a0de60c8fdab99ad7dfdf8498"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a8bea9a6a0de60c8fdab99ad7dfdf8498">operations_research::sat::SolveIntegerProblem</a></div><div class="ttdeci">SatSolver::Status SolveIntegerProblem(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00918">integer_search.cc:918</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a8f18cefafff72d70f6e96ed3f2ef84aa"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a8f18cefafff72d70f6e96ed3f2ef84aa">operations_research::sat::SatSolverHeuristic</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> SatSolverHeuristic(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00330">integer_search.cc:330</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a98bb3bb08c5a9f5c119cf0973bbe5cf8"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a98bb3bb08c5a9f5c119cf0973bbe5cf8">operations_research::sat::GetBoundChanges</a></div><div class="ttdeci">std::vector< PseudoCosts::VariableBoundChange > GetBoundChanges(LiteralIndex decision, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="pseudo__costs_8cc_source.html#l00104">pseudo_costs.cc:104</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a9e815eb2193f1bb6903274c7f0859cd7"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a9e815eb2193f1bb6903274c7f0859cd7">operations_research::sat::UpperBound</a></div><div class="ttdeci">std::function< int64_t(const Model &)> UpperBound(IntegerVariable v)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01669">integer.h:1669</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_aae43e784db06c0974ce59ebbe8dd2b22"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22">operations_research::sat::NegationOf</a></div><div class="ttdeci">std::vector< IntegerVariable > NegationOf(const std::vector< IntegerVariable > &vars)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cc_source.html#l00047">integer.cc:47</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_ac0774a1df651b83339b00fee0bde1cd8"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#ac0774a1df651b83339b00fee0bde1cd8">operations_research::sat::SplitAroundLpValue</a></div><div class="ttdeci">IntegerLiteral SplitAroundLpValue(IntegerVariable var, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00112">integer_search.cc:112</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_ac4a25d47a029efe205efbc015f7c7e7c"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#ac4a25d47a029efe205efbc015f7c7e7c">operations_research::sat::SplitUsingBestSolutionValueInRepository</a></div><div class="ttdeci">IntegerLiteral SplitUsingBestSolutionValueInRepository(IntegerVariable var, const SharedSolutionRepository< int64_t > &solution_repo, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00142">integer_search.cc:142</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_add67896a84f6372a648154c5770a0ae0"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#add67896a84f6372a648154c5770a0ae0">operations_research::sat::kNoBooleanVariable</a></div><div class="ttdeci">const BooleanVariable kNoBooleanVariable(-1)</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_aeaaccdd218e3f0aa5c218d3a0cc5c3f1"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#aeaaccdd218e3f0aa5c218d3a0cc5c3f1">operations_research::sat::LinearizedPartIsLarge</a></div><div class="ttdeci">bool LinearizedPartIsLarge(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00260">integer_search.cc:260</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_aed3a7826cb80e5dfe7cadb141fde73f2"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#aed3a7826cb80e5dfe7cadb141fde73f2">operations_research::sat::kUnsatTrailIndex</a></div><div class="ttdeci">const int kUnsatTrailIndex</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00056">sat_solver.h:56</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_aefab46ecc02eb059ed853ee0213be7fb"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#aefab46ecc02eb059ed853ee0213be7fb">operations_research::sat::PseudoCost</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> PseudoCost(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00343">integer_search.cc:343</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_af7f519865479d23c58e76b1fe416a2f1"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#af7f519865479d23c58e76b1fe416a2f1">operations_research::sat::RandomizeOnRestartHeuristic</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> RandomizeOnRestartHeuristic(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00478">integer_search.cc:478</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html"><div class="ttname"><a href="namespaceoperations__research.html">operations_research</a></div><div class="ttdoc">Collection of objects used to extend the Constraint Solver library.</div><div class="ttdef"><b>Definition:</b> <a href="dense__doubly__linked__list_8h_source.html#l00021">dense_doubly_linked_list.h:21</a></div></div>
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<div class="ttc" id="aoptimization_8cc_html_af63dcc00f2023fdf498e0829e6fb8a6b"><div class="ttname"><a href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a></div><div class="ttdeci">Literal literal</div><div class="ttdef"><b>Definition:</b> <a href="optimization_8cc_source.html#l00089">optimization.cc:89</a></div></div>
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<div class="ttc" id="aprobing_8h_html"><div class="ttname"><a href="probing_8h.html">probing.h</a></div></div>
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<div class="ttc" id="apseudo__costs_8h_html"><div class="ttname"><a href="pseudo__costs_8h.html">pseudo_costs.h</a></div></div>
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<div class="ttc" id="aresource_8cc_html_aee52de7b225665566aa47246b9d6b8fa"><div class="ttname"><a href="resource_8cc.html#aee52de7b225665566aa47246b9d6b8fa">time</a></div><div class="ttdeci">int64_t time</div><div class="ttdef"><b>Definition:</b> <a href="resource_8cc_source.html#l01693">resource.cc:1693</a></div></div>
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<div class="ttc" id="arestart_8h_html"><div class="ttname"><a href="restart_8h.html">restart.h</a></div></div>
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<div class="ttc" id="arins_8h_html"><div class="ttname"><a href="rins_8h.html">rins.h</a></div></div>
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<div class="ttc" id="asat_2model_8h_html"><div class="ttname"><a href="sat_2model_8h.html">model.h</a></div></div>
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<div class="ttc" id="asat_2util_8h_html"><div class="ttname"><a href="sat_2util_8h.html">util.h</a></div></div>
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<div class="ttc" id="asat__base_8h_html"><div class="ttname"><a href="sat__base_8h.html">sat_base.h</a></div></div>
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<div class="ttc" id="asat__decision_8h_html"><div class="ttname"><a href="sat__decision_8h.html">sat_decision.h</a></div></div>
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<div class="ttc" id="asat__inprocessing_8h_html"><div class="ttname"><a href="sat__inprocessing_8h.html">sat_inprocessing.h</a></div></div>
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<div class="ttc" id="asat__solver_8h_html"><div class="ttname"><a href="sat__solver_8h.html">sat_solver.h</a></div></div>
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<div class="ttc" id="asched__constraints_8cc_html_a826c744af066625acb241b17ae3e2be9"><div class="ttname"><a href="sched__constraints_8cc.html#a826c744af066625acb241b17ae3e2be9">start_min</a></div><div class="ttdeci">Rev< int64_t > start_min</div><div class="ttdef"><b>Definition:</b> <a href="sched__constraints_8cc_source.html#l00243">sched_constraints.cc:243</a></div></div>
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<div class="ttc" id="asched__constraints_8cc_html_ad3f96403731a9e915dad229813609e74"><div class="ttname"><a href="sched__constraints_8cc.html#ad3f96403731a9e915dad229813609e74">end_min</a></div><div class="ttdeci">Rev< int64_t > end_min</div><div class="ttdef"><b>Definition:</b> <a href="sched__constraints_8cc_source.html#l00245">sched_constraints.cc:245</a></div></div>
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<div class="ttc" id="asparse__submatrix_8cc_html_a4d53eac2ef2732c28fa9fb663e0c19a7"><div class="ttname"><a href="sparse__submatrix_8cc.html#a4d53eac2ef2732c28fa9fb663e0c19a7">end</a></div><div class="ttdeci">std::optional< int64_t > end</div><div class="ttdef"><b>Definition:</b> <a href="sparse__submatrix_8cc_source.html#l00036">sparse_submatrix.cc:36</a></div></div>
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<div class="ttc" id="asparse__submatrix_8cc_html_a9b7656b922ea4ec96097d7380c0e61fe"><div class="ttname"><a href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a></div><div class="ttdeci">int64_t start</div><div class="ttdef"><b>Definition:</b> <a href="sparse__submatrix_8cc_source.html#l00035">sparse_submatrix.cc:35</a></div></div>
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<div class="ttc" id="astrong__integers_8h_html"><div class="ttname"><a href="strong__integers_8h.html">strong_integers.h</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_affine_expression_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_affine_expression.html">operations_research::sat::AffineExpression</a></div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00233">integer.h:233</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_boolean_or_integer_literal_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">operations_research::sat::BooleanOrIntegerLiteral</a></div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00055">integer_search.h:55</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_boolean_or_integer_literal_html_a3c6f3ae96a90c7fcef34dd0f1ce0297e"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a3c6f3ae96a90c7fcef34dd0f1ce0297e">operations_research::sat::BooleanOrIntegerLiteral::boolean_literal_index</a></div><div class="ttdeci">LiteralIndex boolean_literal_index</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00067">integer_search.h:67</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_boolean_or_integer_literal_html_ae26b73bbf70dc88433be39df364ca7c1"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#ae26b73bbf70dc88433be39df364ca7c1">operations_research::sat::BooleanOrIntegerLiteral::HasValue</a></div><div class="ttdeci">bool HasValue() const</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00062">integer_search.h:62</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_boolean_or_integer_literal_html_aee356429e37f0750e38ee17ae1464a00"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#aee356429e37f0750e38ee17ae1464a00">operations_research::sat::BooleanOrIntegerLiteral::integer_literal</a></div><div class="ttdeci">IntegerLiteral integer_literal</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00068">integer_search.h:68</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_integer_literal_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_integer_literal.html">operations_research::sat::IntegerLiteral</a></div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00174">integer.h:174</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_integer_literal_html_a3e2eb445631727dd4abf1d5343f16b2f"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_integer_literal.html#a3e2eb445631727dd4abf1d5343f16b2f">operations_research::sat::IntegerLiteral::LowerOrEqual</a></div><div class="ttdeci">static IntegerLiteral LowerOrEqual(IntegerVariable i, IntegerValue bound)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01393">integer.h:1393</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_integer_literal_html_a6c233aafac25ea66d69de93a83c9be63"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_integer_literal.html#a6c233aafac25ea66d69de93a83c9be63">operations_research::sat::IntegerLiteral::GreaterOrEqual</a></div><div class="ttdeci">static IntegerLiteral GreaterOrEqual(IntegerVariable i, IntegerValue bound)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01387">integer.h:1387</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_integer_literal_html_ab6516f556b715738034b30d290c40214"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_integer_literal.html#ab6516f556b715738034b30d290c40214">operations_research::sat::IntegerLiteral::var</a></div><div class="ttdeci">IntegerVariable var</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00217">integer.h:217</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_integer_literal_html_ac532c4b500b1a85ea22217f2c65a70ed"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_integer_literal.html#ac532c4b500b1a85ea22217f2c65a70ed">operations_research::sat::IntegerLiteral::IsValid</a></div><div class="ttdeci">bool IsValid() const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00196">integer.h:196</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_level_zero_callback_helper_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_level_zero_callback_helper.html">operations_research::sat::LevelZeroCallbackHelper</a></div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00105">integer_search.h:105</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_level_zero_callback_helper_html_ac008fdb20ed4a9c84c490d4cbff755ac"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_level_zero_callback_helper.html#ac008fdb20ed4a9c84c490d4cbff755ac">operations_research::sat::LevelZeroCallbackHelper::callbacks</a></div><div class="ttdeci">std::vector< std::function< bool()> > callbacks</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00106">integer_search.h:106</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_objective_definition_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_objective_definition.html">operations_research::sat::ObjectiveDefinition</a></div><div class="ttdef"><b>Definition:</b> <a href="cp__model__mapping_8h_source.html#l00041">cp_model_mapping.h:41</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_objective_definition_html_aa3c0b31567c91babfffd5f9afc3161dc"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_objective_definition.html#aa3c0b31567c91babfffd5f9afc3161dc">operations_research::sat::ObjectiveDefinition::objective_var</a></div><div class="ttdeci">IntegerVariable objective_var</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__mapping_8h_source.html#l00044">cp_model_mapping.h:44</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_search_heuristics_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_search_heuristics.html">operations_research::sat::SearchHeuristics</a></div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00076">integer_search.h:76</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_search_heuristics_html_a0d0b8f29f3557e2ee84f53b45d817e02"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">operations_research::sat::SearchHeuristics::restart_policies</a></div><div class="ttdeci">std::vector< std::function< bool()> > restart_policies</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00081">integer_search.h:81</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_search_heuristics_html_a3ef187fb1a44e4df4e66c2a59304000e"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_search_heuristics.html#a3ef187fb1a44e4df4e66c2a59304000e">operations_research::sat::SearchHeuristics::hint_search</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> hint_search</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00089">integer_search.h:89</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_search_heuristics_html_a984249b5c2efe8f16e6942b54be739a5"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_search_heuristics.html#a984249b5c2efe8f16e6942b54be739a5">operations_research::sat::SearchHeuristics::fixed_search</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> fixed_search</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00088">integer_search.h:88</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_search_heuristics_html_aa1668e07fb6607c61474310ad1045657"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_search_heuristics.html#aa1668e07fb6607c61474310ad1045657">operations_research::sat::SearchHeuristics::next_decision_override</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> next_decision_override</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00094">integer_search.h:94</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_search_heuristics_html_af2155539e87804108c670c32478e123d"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_search_heuristics.html#af2155539e87804108c670c32478e123d">operations_research::sat::SearchHeuristics::policy_index</a></div><div class="ttdeci">int policy_index</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00084">integer_search.h:84</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_search_heuristics_html_af925e41205032e143d718455bfeede3c"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">operations_research::sat::SearchHeuristics::decision_policies</a></div><div class="ttdeci">std::vector< std::function< BooleanOrIntegerLiteral()> > decision_policies</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00080">integer_search.h:80</a></div></div>
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<div class="ttc" id="asynchronization_8h_html"><div class="ttname"><a href="synchronization_8h.html">synchronization.h</a></div></div>
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<div class="ttc" id="atime__limit_8h_html"><div class="ttname"><a href="time__limit_8h.html">time_limit.h</a></div></div>
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