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533 lines
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<div class="headertitle"><div class="title">cp_model_postsolve.cc</div></div>
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<a href="cp__model__postsolve_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="cp__model__postsolve_8h.html">ortools/sat/cp_model_postsolve.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 <cstdint></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <limits></span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include "<a class="code" href="cp__model__utils_8h.html">ortools/sat/cp_model_utils.h</a>"</span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</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="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="keyword">namespace </span>sat {</div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="comment">// This postsolve is "special". If the clause is not satisfied, we fix the</span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="comment">// first literal in the clause to true (even if it was fixed to false). This</span></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="comment">// allows to handle more complex presolve operations used by the SAT presolver.</span></div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="comment">//</span></div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="comment">// Also, any "free" Boolean should be fixed to some value for the subsequent</span></div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="comment">// postsolve steps.</span></div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#ab67697c2e8ba7d65eff35db17d7b94a9"> 30</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ab67697c2e8ba7d65eff35db17d7b94a9">PostsolveClause</a>(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>, std::vector<Domain>* domains) {</div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">const</span> <span class="keywordtype">int</span> size = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.bool_or().literals_size();</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <a class="code hl_define" href="base_2logging_8h.html#ab25e01a2942b821d66371fc68d53f2eb">CHECK_NE</a>(size, 0);</div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <span class="keywordtype">bool</span> satisfied = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < size; ++i) {</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">const</span> <span class="keywordtype">int</span> ref = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.bool_or().literals(i);</div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">const</span> <span class="keywordtype">int</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#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(ref);</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keywordflow">if</span> ((*domains)[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>].<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a4d3c6ea5e2b95e4d7e45d6146c61c2ce">IsFixed</a>()) {</div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <span class="keywordflow">if</span> ((*domains)[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>].FixedValue() == (<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(ref) ? 1 : 0)) {</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> satisfied = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> }</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="comment">// We still need to assign free variable. Any value should work.</span></div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> (*domains)[<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(ref)] = <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(0);</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> }</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> }</div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="keywordflow">if</span> (satisfied) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="comment">// Change the value of the first variable (which was chosen at presolve).</span></div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">const</span> <span class="keywordtype">int</span> first_ref = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.bool_or().literals(0);</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> (*domains)[<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(first_ref)] = <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(first_ref) ? 1 : 0);</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span>}</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#a62feb42f880fdeb019acf6a06cff70c1"> 53</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a62feb42f880fdeb019acf6a06cff70c1">PostsolveExactlyOne</a>(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>,</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> std::vector<Domain>* domains) {</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keywordtype">bool</span> satisfied = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> std::vector<int> free_variables;</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> ref : <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.exactly_one().literals()) {</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keyword">const</span> <span class="keywordtype">int</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#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(ref);</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="keywordflow">if</span> ((*domains)[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>].<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a4d3c6ea5e2b95e4d7e45d6146c61c2ce">IsFixed</a>()) {</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordflow">if</span> ((*domains)[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>].FixedValue() == (<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(ref) ? 1 : 0)) {</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!satisfied) << <span class="stringliteral">"Two variables at one in exactly one."</span>;</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> satisfied = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> }</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> free_variables.push_back(ref);</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> }</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> }</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keywordflow">if</span> (!satisfied) {</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="comment">// Fix one at true.</span></div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!free_variables.empty()) << <span class="stringliteral">"All zero in exactly one"</span>;</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keyword">const</span> <span class="keywordtype">int</span> ref = free_variables.back();</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> (*domains)[<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(ref)] = <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(ref) ? 1 : 0);</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> free_variables.pop_back();</div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> }</div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> </div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="comment">// Fix any free variable left at false.</span></div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> ref : free_variables) {</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> (*domains)[<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(ref)] = <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(ref) ? 0 : 1);</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> }</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span>}</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> </div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span><span class="comment">// For now we set the first unset enforcement literal to false.</span></div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span><span class="comment">// There must be one.</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#a73e2ec8896aa53a5c58f86dfd68e6f19"> 84</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a73e2ec8896aa53a5c58f86dfd68e6f19">SetEnforcementLiteralToFalse</a>(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>,</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> std::vector<Domain>* domains) {</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.enforcement_literal().empty());</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="keywordtype">bool</span> has_free_enforcement_literal = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> enf : <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.enforcement_literal()) {</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="keywordflow">if</span> ((*domains)[<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(enf)].<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a4d3c6ea5e2b95e4d7e45d6146c61c2ce">IsFixed</a>()) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> has_free_enforcement_literal = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordflow">if</span> (<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(enf)) {</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> (*domains)[enf] = <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(0);</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> (*domains)[<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(enf)] = <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(1);</div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> }</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> }</div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordflow">if</span> (!has_free_enforcement_literal) {</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#acdd38e3c9f22f127d7776920e3079eda">FATAL</a>)</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> << <span class="stringliteral">"Unsatisfied linear constraint with no free enforcement literal: "</span></div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> << <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.ShortDebugString();</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> }</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span>}</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> </div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span><span class="comment">// Here we simply assign all non-fixed variable to a feasible value. Which</span></div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span><span class="comment">// should always exists by construction.</span></div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a1951d3606d9c0c92204c310b911bf0e7"> 107</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1951d3606d9c0c92204c310b911bf0e7">PostsolveLinear</a>(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>, std::vector<Domain>* domains) {</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> int64_t fixed_activity = 0;</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="keyword">const</span> <span class="keywordtype">int</span> size = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.linear().vars().size();</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> std::vector<int> free_vars;</div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> std::vector<int64_t> free_coeffs;</div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < size; ++i) {</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.linear().vars(i);</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keyword">const</span> int64_t <a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a> = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.linear().coeffs(i);</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <a class="code hl_define" href="base_2logging_8h.html#a4bd2e815ca2f702a4b6aa744b1ff3b82">CHECK_LT</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, domains->size());</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a> == 0) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keywordflow">if</span> ((*domains)[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>].<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a4d3c6ea5e2b95e4d7e45d6146c61c2ce">IsFixed</a>()) {</div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> fixed_activity += (*domains)[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>].FixedValue() * <a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a>;</div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> free_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="l00121" name="l00121"></a><span class="lineno"> 121</span> free_coeffs.push_back(<a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a>);</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> }</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</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> (free_vars.empty()) {</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a> rhs = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ab1240060466ba48a36a4b36379bce26a">ReadDomainFromProto</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.linear());</div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordflow">if</span> (!rhs.<a class="code hl_function" href="classoperations__research_1_1_domain.html#a22c6c2f121586b5d76feb4b0e536dfde">Contains</a>(fixed_activity)) {</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a73e2ec8896aa53a5c58f86dfd68e6f19">SetEnforcementLiteralToFalse</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>, domains);</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="keywordflow">return</span>;</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> }</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> </div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="comment">// Fast track for the most common case.</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> <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a> initial_rhs = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ab1240060466ba48a36a4b36379bce26a">ReadDomainFromProto</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.linear());</div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keywordflow">if</span> (free_vars.size() == 1) {</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = free_vars[0];</div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a> domain = initial_rhs.<a class="code hl_function" href="classoperations__research_1_1_domain.html#a4f9af4a46ee07931e3e5e50f6ddfb8ad">AdditionWith</a>(<a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(-fixed_activity))</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> .<a class="code hl_function" href="classoperations__research_1_1_domain.html#a1341b29865c5167a64de30c797672e4c">InverseMultiplicationBy</a>(free_coeffs[0])</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> .<a class="code hl_function" href="classoperations__research_1_1_domain.html#a835826c4c5129b74553042a357a721ff">IntersectionWith</a>((*domains)[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>]);</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="keywordflow">if</span> (domain.<a class="code hl_function" href="classoperations__research_1_1_domain.html#a8e12342fc420701fbffd97025421575a">IsEmpty</a>()) {</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a73e2ec8896aa53a5c58f86dfd68e6f19">SetEnforcementLiteralToFalse</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>, domains);</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> }</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> (*domains)[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>] = <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(domain.<a class="code hl_function" href="classoperations__research_1_1_domain.html#aa070cf76ca3ef43a3b8db17c77d35669">SmallestValue</a>());</div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> }</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> </div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <span class="comment">// The postsolve code is a bit involved if there is more than one free</span></div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="comment">// variable, we have to postsolve them one by one.</span></div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="comment">// Here we recompute the same domains as during the presolve. Everything is</span></div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> <span class="comment">// like if we where substiting the variable one by one:</span></div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="comment">// terms[i] + fixed_activity \in rhs_domains[i]</span></div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="comment">// In the reverse order.</span></div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> std::vector<Domain> rhs_domains;</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> rhs_domains.push_back(initial_rhs);</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i + 1 < free_vars.size(); ++i) {</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> <span class="comment">// Note that these should be exactly the same computation as the one done</span></div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <span class="comment">// during presolve and should be exact. However, we have some tests that do</span></div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="comment">// not comply, so we don't check exactness here. Also, as long as we don't</span></div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="comment">// get empty domain below, and the complexity of the domain do not explode</span></div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <span class="comment">// here, we should be fine.</span></div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a> term = (*domains)[free_vars[i]].<a class="code hl_function" href="classoperations__research_1_1_domain.html#a63a708c626b59b4504ddb879496c894e">MultiplicationBy</a>(-free_coeffs[i]);</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> rhs_domains.push_back(term.<a class="code hl_function" href="classoperations__research_1_1_domain.html#a4f9af4a46ee07931e3e5e50f6ddfb8ad">AdditionWith</a>(rhs_domains.back()));</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> }</div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = free_vars.size() - 1; i >= 0; --i) {</div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="comment">// Choose a value for free_vars[i] that fall into rhs_domains[i] -</span></div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> <span class="comment">// fixed_activity. This will crash if the intersection is empty, but it</span></div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="comment">// shouldn't be.</span></div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = free_vars[i];</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <span class="keyword">const</span> int64_t <a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a> = free_coeffs[i];</div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a> domain = rhs_domains[i]</div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> .<a class="code hl_function" href="classoperations__research_1_1_domain.html#a4f9af4a46ee07931e3e5e50f6ddfb8ad">AdditionWith</a>(<a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(-fixed_activity))</div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> .<a class="code hl_function" href="classoperations__research_1_1_domain.html#a1341b29865c5167a64de30c797672e4c">InverseMultiplicationBy</a>(<a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a>)</div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> .<a class="code hl_function" href="classoperations__research_1_1_domain.html#a835826c4c5129b74553042a357a721ff">IntersectionWith</a>((*domains)[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>]);</div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> </div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="comment">// TODO(user): I am not 100% that the algo here might cover all the presolve</span></div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="comment">// case, so if this fail, it might indicate an issue here and not in the</span></div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="comment">// presolve/solver code.</span></div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!domain.<a class="code hl_function" href="classoperations__research_1_1_domain.html#a8e12342fc420701fbffd97025421575a">IsEmpty</a>()) << <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.ShortDebugString();</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="keyword">const</span> int64_t <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = domain.<a class="code hl_function" href="classoperations__research_1_1_domain.html#aa070cf76ca3ef43a3b8db17c77d35669">SmallestValue</a>();</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> (*domains)[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>] = <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> </div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> fixed_activity += <a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a> * <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>;</div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> }</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(initial_rhs.<a class="code hl_function" href="classoperations__research_1_1_domain.html#a22c6c2f121586b5d76feb4b0e536dfde">Contains</a>(fixed_activity));</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span>}</div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> </div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span><span class="keyword">namespace </span>{</div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> </div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span>int64_t EvaluateLinearExpression(<span class="keyword">const</span> LinearExpressionProto& expr,</div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <span class="keyword">const</span> std::vector<Domain>& domains) {</div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> int64_t <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = expr.offset();</div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < expr.vars_size(); ++i) {</div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keyword">const</span> <span class="keywordtype">int</span> ref = expr.vars(i);</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="keyword">const</span> int64_t increment =</div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> domains[<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(expr.vars(i))].FixedValue() * expr.coeffs(i);</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> += <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(ref) ? increment : -increment;</div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> }</div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>;</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"> 202</span>} <span class="comment">// namespace</span></div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> </div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span><span class="comment">// Compute the max of each expression, and assign it to the target expr (which</span></div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span><span class="comment">// must be of the form +ref or -ref);</span></div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span><span class="comment">// We only support post-solving the case were the target is unassigned,</span></div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span><span class="comment">// but everything else is fixed.</span></div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a86b855c27a037ed3eec043f0f0f25e2e"> 208</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a86b855c27a037ed3eec043f0f0f25e2e">PostsolveLinMax</a>(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>, std::vector<Domain>* domains) {</div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> int64_t max_value = <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::numeric_limits<int64_t>::min</a>();</div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_expression_proto.html">LinearExpressionProto</a>& expr : <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.lin_max().exprs()) {</div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> max_value = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(max_value, EvaluateLinearExpression(expr, *domains));</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"> 213</span> <span class="keyword">const</span> <span class="keywordtype">int</span> target_ref = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#adc1745a206c1ed3667e9de782d8a8c13">GetSingleRefFromExpression</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.lin_max().target());</div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> <span class="keyword">const</span> <span class="keywordtype">int</span> target_var = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(target_ref);</div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> (*domains)[target_var] = (*domains)[target_var].IntersectionWith(</div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(target_ref) ? max_value : -max_value));</div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!(*domains)[target_var].IsEmpty());</div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span>}</div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> </div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span><span class="comment">// We only support 3 cases in the presolve currently.</span></div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a1743e4469ce5d2535719981c49544a5d"> 221</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1743e4469ce5d2535719981c49544a5d">PostsolveElement</a>(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>, std::vector<Domain>* domains) {</div>
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<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> <span class="keyword">const</span> <span class="keywordtype">int</span> index_ref = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.element().index();</div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> <span class="keyword">const</span> <span class="keywordtype">int</span> index_var = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(index_ref);</div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> <span class="keyword">const</span> <span class="keywordtype">int</span> target_ref = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.element().target();</div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <span class="keyword">const</span> <span class="keywordtype">int</span> target_var = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(target_ref);</div>
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> </div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <span class="comment">// Deal with non-fixed target and non-fixed index. This only happen if</span></div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="comment">// whatever the value of the index and selected variable, we can choose a</span></div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="comment">// valid target, so we just fix the index to its min value in this case.</span></div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> <span class="keywordflow">if</span> (!(*domains)[target_var].<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a4d3c6ea5e2b95e4d7e45d6146c61c2ce">IsFixed</a>() && !(*domains)[index_var].<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a4d3c6ea5e2b95e4d7e45d6146c61c2ce">IsFixed</a>()) {</div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <span class="keyword">const</span> int64_t index_var_value = (*domains)[index_var].Min();</div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> (*domains)[index_var] = <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(index_var_value);</div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> </div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> <span class="comment">// If the selected variable is not fixed, we also need to fix it.</span></div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="keyword">const</span> <span class="keywordtype">int</span> selected_ref = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.element().vars(</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(index_ref) ? index_var_value : -index_var_value);</div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <span class="keyword">const</span> <span class="keywordtype">int</span> selected_var = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(selected_ref);</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <span class="keywordflow">if</span> (!(*domains)[selected_var].<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a4d3c6ea5e2b95e4d7e45d6146c61c2ce">IsFixed</a>()) {</div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> (*domains)[selected_var] = <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>((*domains)[selected_var].Min());</div>
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> }</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">// Deal with fixed index.</span></div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> <span class="keywordflow">if</span> ((*domains)[index_var].<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a4d3c6ea5e2b95e4d7e45d6146c61c2ce">IsFixed</a>()) {</div>
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<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <span class="keyword">const</span> int64_t index_var_value = (*domains)[index_var].FixedValue();</div>
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<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <span class="keyword">const</span> <span class="keywordtype">int</span> selected_ref = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.element().vars(</div>
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<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(index_ref) ? index_var_value : -index_var_value);</div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <span class="keyword">const</span> <span class="keywordtype">int</span> selected_var = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(selected_ref);</div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <span class="keywordflow">if</span> ((*domains)[selected_var].<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a4d3c6ea5e2b95e4d7e45d6146c61c2ce">IsFixed</a>()) {</div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="keyword">const</span> int64_t selected_value = (*domains)[selected_var].FixedValue();</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> (*domains)[target_var] = (*domains)[target_var].IntersectionWith(</div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(target_ref) == <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(selected_ref)</div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> ? selected_value</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> : -selected_value));</div>
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<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(!(*domains)[target_var].IsEmpty());</div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> same_sign =</div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> (selected_var == selected_ref) == (target_var == target_ref);</div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a> target_domain = (*domains)[target_var];</div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a> selected_domain = same_sign</div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> ? (*domains)[selected_var]</div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> : (*domains)[selected_var].<a class="code hl_function" href="classoperations__research_1_1_domain.html#a1e3aa02e2d8300db5f1fc12f6b3228fa">Negation</a>();</div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a> <span class="keyword">final</span> = target_domain.<a class="code hl_function" href="classoperations__research_1_1_domain.html#a835826c4c5129b74553042a357a721ff">IntersectionWith</a>(selected_domain);</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> <span class="keyword">const</span> int64_t <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = <span class="keyword">final</span>.SmallestValue();</div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> (*domains)[target_var] =</div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> (*domains)[target_var].IntersectionWith(<a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>));</div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> (*domains)[selected_var] = (*domains)[selected_var].IntersectionWith(</div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(same_sign ? <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>));</div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(!(*domains)[target_var].IsEmpty());</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(!(*domains)[selected_var].IsEmpty());</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="keywordflow">return</span>;</div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> }</div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> </div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> <span class="comment">// Deal with fixed target (and constant vars).</span></div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> <span class="keyword">const</span> int64_t target_value = (*domains)[target_var].FixedValue();</div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> <span class="keywordtype">int</span> selected_index_value = -1;</div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> int64_t v : (*domains)[index_var].Values()) {</div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> <span class="keyword">const</span> int64_t i = index_var == index_ref ? v : -v;</div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> <span class="keywordflow">if</span> (i < 0 || i >= <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.element().vars_size()) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> </div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> <span class="keyword">const</span> <span class="keywordtype">int</span> ref = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.element().vars(i);</div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> <span class="keyword">const</span> <span class="keywordtype">int</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#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(ref);</div>
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<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> <span class="keyword">const</span> int64_t <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = (*domains)[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>].FixedValue();</div>
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<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> <span class="keywordflow">if</span> (<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(target_ref) == <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(ref)) {</div>
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<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> == target_value) {</div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> selected_index_value = i;</div>
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<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> <span class="keywordflow">break</span>;</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> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> == -target_value) {</div>
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<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> selected_index_value = i;</div>
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<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> }</div>
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<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> }</div>
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<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> }</div>
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<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> </div>
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<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span> <a class="code hl_define" href="base_2logging_8h.html#ab25e01a2942b821d66371fc68d53f2eb">CHECK_NE</a>(selected_index_value, -1);</div>
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<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> (*domains)[index_var] = (*domains)[index_var].IntersectionWith(<a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>(</div>
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<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(index_ref) ? selected_index_value : -selected_index_value));</div>
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<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(!(*domains)[index_var].IsEmpty());</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"><a class="line" href="namespaceoperations__research_1_1sat.html#a4699c7fe17ad6e3cbf4bc40bc0c4be59"> 304</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a4699c7fe17ad6e3cbf4bc40bc0c4be59">PostsolveResponse</a>(<span class="keyword">const</span> int64_t num_variables_in_original_model,</div>
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<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_cp_model_proto.html">CpModelProto</a>& mapping_proto,</div>
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<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> <span class="keyword">const</span> std::vector<int>& postsolve_mapping,</div>
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<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> std::vector<int64_t>* solution) {</div>
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<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> <a class="code hl_define" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(solution->size(), postsolve_mapping.size());</div>
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<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> </div>
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<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> <span class="comment">// Read the initial variable domains, either from the fixed solution of the</span></div>
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<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> <span class="comment">// presolved problems or from the mapping model.</span></div>
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<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> std::vector<Domain> domains(mapping_proto.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_proto.html#abef5f55c3278c137faca92b8e433f8ea">variables_size</a>());</div>
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<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < postsolve_mapping.size(); ++i) {</div>
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<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> <a class="code hl_define" href="base_2logging_8h.html#ae4db23f10f5d4aad6d735f5a74cd6f8c">CHECK_LE</a>(postsolve_mapping[i], domains.size());</div>
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<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> domains[postsolve_mapping[i]] = <a class="code hl_class" href="classoperations__research_1_1_domain.html">Domain</a>((*solution)[i]);</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> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < domains.size(); ++i) {</div>
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<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> <span class="keywordflow">if</span> (domains[i].IsEmpty()) {</div>
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<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> domains[i] = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ab1240060466ba48a36a4b36379bce26a">ReadDomainFromProto</a>(mapping_proto.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_proto.html#a6a4544ca20489d70e302f5d6d374a012">variables</a>(i));</div>
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<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> }</div>
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<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!domains[i].IsEmpty());</div>
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<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> }</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> <span class="comment">// Process the constraints in reverse order.</span></div>
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<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_constraints = mapping_proto.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_proto.html#aeaf0da781ca9b370d96b7fbd3f74266a">constraints_size</a>();</div>
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<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = num_constraints - 1; i >= 0; i--) {</div>
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<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> = mapping_proto.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_proto.html#afce66afa8ae7776a449bba7313ea3559">constraints</a>(i);</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> <span class="comment">// We ignore constraint with an enforcement literal set to false. If the</span></div>
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<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> <span class="comment">// enforcement is still unclear, we still process this constraint.</span></div>
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<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> <span class="keywordtype">bool</span> constraint_can_be_ignored = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> enf : <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.enforcement_literal()) {</div>
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<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> <span class="keyword">const</span> <span class="keywordtype">int</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#acdbc8ad33149d45a6e6fcd8b72fd68ed">PositiveRef</a>(enf);</div>
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<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> is_false =</div>
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<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> domains[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>].IsFixed() &&</div>
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<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">RefIsPositive</a>(enf) == (domains[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>].FixedValue() == 0);</div>
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<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> <span class="keywordflow">if</span> (is_false) {</div>
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<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> constraint_can_be_ignored = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> <span class="keywordflow">break</span>;</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> <span class="keywordflow">if</span> (constraint_can_be_ignored) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> </div>
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<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> <span class="keywordflow">switch</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.constraint_case()) {</div>
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<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_constraint_proto.html#ada030f50fcddb646af448ac7c5705e35aaadb0c3370c597095e0cb7e768f04567">ConstraintProto::kBoolOr</a>:</div>
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<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ab67697c2e8ba7d65eff35db17d7b94a9">PostsolveClause</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>, &domains);</div>
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<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_constraint_proto.html#ada030f50fcddb646af448ac7c5705e35ad60570d9bed938f8b11385a7ba7f3508">ConstraintProto::kExactlyOne</a>:</div>
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<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a62feb42f880fdeb019acf6a06cff70c1">PostsolveExactlyOne</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>, &domains);</div>
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<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_constraint_proto.html#ada030f50fcddb646af448ac7c5705e35ac188c019178783e5be55110601309d7d">ConstraintProto::kLinear</a>:</div>
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<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1951d3606d9c0c92204c310b911bf0e7">PostsolveLinear</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>, &domains);</div>
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<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_constraint_proto.html#ada030f50fcddb646af448ac7c5705e35afa67b6d38ac5fc27ad2cac3d2f392e39">ConstraintProto::kLinMax</a>:</div>
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<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a86b855c27a037ed3eec043f0f0f25e2e">PostsolveLinMax</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>, &domains);</div>
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<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classoperations__research_1_1sat_1_1_constraint_proto.html#ada030f50fcddb646af448ac7c5705e35acd33b6e972e153ab1a911c84c9585a42">ConstraintProto::kElement</a>:</div>
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<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1743e4469ce5d2535719981c49544a5d">PostsolveElement</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>, &domains);</div>
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<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> <span class="keywordflow">default</span>:</div>
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<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> <span class="comment">// This should never happen as we control what kind of constraint we</span></div>
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<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span> <span class="comment">// add to the mapping_proto;</span></div>
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<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#acdd38e3c9f22f127d7776920e3079eda">FATAL</a>) << <span class="stringliteral">"Unsupported constraint: "</span> << <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.ShortDebugString();</div>
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<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> }</div>
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<div class="line"><a id="l00365" name="l00365"></a><span class="lineno"> 365</span> }</div>
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<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span> </div>
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<div class="line"><a id="l00367" name="l00367"></a><span class="lineno"> 367</span> <span class="comment">// Fill the response.</span></div>
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<div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span> <span class="comment">// Maybe fix some still unfixed variable.</span></div>
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<div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> solution->clear();</div>
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<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span> <a class="code hl_define" href="base_2logging_8h.html#ae4db23f10f5d4aad6d735f5a74cd6f8c">CHECK_LE</a>(num_variables_in_original_model, domains.size());</div>
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<div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_variables_in_original_model; ++i) {</div>
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<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span> solution->push_back(domains[i].SmallestValue());</div>
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<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> }</div>
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<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span>}</div>
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<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> </div>
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<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span>} <span class="comment">// namespace sat</span></div>
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<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</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_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_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#l00705">base/logging.h:705</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#l00702">base/logging.h:702</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#l00703">base/logging.h:703</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_accad43a85d781d53381cd53a9894b6ae"><div class="ttname"><a href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a></div><div class="ttdeci">#define LOG(severity)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00420">base/logging.h:420</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#l00889">base/logging.h:889</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_ae4db23f10f5d4aad6d735f5a74cd6f8c"><div class="ttname"><a href="base_2logging_8h.html#ae4db23f10f5d4aad6d735f5a74cd6f8c">CHECK_LE</a></div><div class="ttdeci">#define CHECK_LE(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="aclassoperations__research_1_1_domain_html"><div class="ttname"><a href="classoperations__research_1_1_domain.html">operations_research::Domain</a></div><div class="ttdoc">We call domain any subset of Int64 = [kint64min, kint64max].</div><div class="ttdef"><b>Definition:</b> <a href="sorted__interval__list_8h_source.html#l00081">sorted_interval_list.h:81</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_domain_html_a1341b29865c5167a64de30c797672e4c"><div class="ttname"><a href="classoperations__research_1_1_domain.html#a1341b29865c5167a64de30c797672e4c">operations_research::Domain::InverseMultiplicationBy</a></div><div class="ttdeci">Domain InverseMultiplicationBy(const int64_t coeff) const</div><div class="ttdoc">Returns {x ∈ Int64, ∃ e ∈ D, x * coeff = e}.</div><div class="ttdef"><b>Definition:</b> <a href="sorted__interval__list_8cc_source.html#l00463">sorted_interval_list.cc:463</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_domain_html_a1e3aa02e2d8300db5f1fc12f6b3228fa"><div class="ttname"><a href="classoperations__research_1_1_domain.html#a1e3aa02e2d8300db5f1fc12f6b3228fa">operations_research::Domain::Negation</a></div><div class="ttdeci">Domain Negation() const</div><div class="ttdoc">Returns {x ∈ Int64, ∃ e ∈ D, x = -e}.</div><div class="ttdef"><b>Definition:</b> <a href="sorted__interval__list_8cc_source.html#l00282">sorted_interval_list.cc:282</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_domain_html_a22c6c2f121586b5d76feb4b0e536dfde"><div class="ttname"><a href="classoperations__research_1_1_domain.html#a22c6c2f121586b5d76feb4b0e536dfde">operations_research::Domain::Contains</a></div><div class="ttdeci">bool Contains(int64_t value) const</div><div class="ttdoc">Returns true iff value is in Domain.</div><div class="ttdef"><b>Definition:</b> <a href="sorted__interval__list_8cc_source.html#l00242">sorted_interval_list.cc:242</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_domain_html_a4f9af4a46ee07931e3e5e50f6ddfb8ad"><div class="ttname"><a href="classoperations__research_1_1_domain.html#a4f9af4a46ee07931e3e5e50f6ddfb8ad">operations_research::Domain::AdditionWith</a></div><div class="ttdeci">Domain AdditionWith(const Domain &domain) const</div><div class="ttdoc">Returns {x ∈ Int64, ∃ a ∈ D, ∃ b ∈ domain, x = a + b}.</div><div class="ttdef"><b>Definition:</b> <a href="sorted__interval__list_8cc_source.html#l00353">sorted_interval_list.cc:353</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_domain_html_a63a708c626b59b4504ddb879496c894e"><div class="ttname"><a href="classoperations__research_1_1_domain.html#a63a708c626b59b4504ddb879496c894e">operations_research::Domain::MultiplicationBy</a></div><div class="ttdeci">Domain MultiplicationBy(int64_t coeff, bool *exact=nullptr) const</div><div class="ttdoc">Returns {x ∈ Int64, ∃ e ∈ D, x = e * coeff}.</div><div class="ttdef"><b>Definition:</b> <a href="sorted__interval__list_8cc_source.html#l00382">sorted_interval_list.cc:382</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_domain_html_a835826c4c5129b74553042a357a721ff"><div class="ttname"><a href="classoperations__research_1_1_domain.html#a835826c4c5129b74553042a357a721ff">operations_research::Domain::IntersectionWith</a></div><div class="ttdeci">Domain IntersectionWith(const Domain &domain) const</div><div class="ttdoc">Returns the intersection of D and domain.</div><div class="ttdef"><b>Definition:</b> <a href="sorted__interval__list_8cc_source.html#l00303">sorted_interval_list.cc:303</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_domain_html_a8e12342fc420701fbffd97025421575a"><div class="ttname"><a href="classoperations__research_1_1_domain.html#a8e12342fc420701fbffd97025421575a">operations_research::Domain::IsEmpty</a></div><div class="ttdeci">bool IsEmpty() const</div><div class="ttdoc">Returns true if this is the empty set.</div><div class="ttdef"><b>Definition:</b> <a href="sorted__interval__list_8cc_source.html#l00198">sorted_interval_list.cc:198</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_domain_html_aa070cf76ca3ef43a3b8db17c77d35669"><div class="ttname"><a href="classoperations__research_1_1_domain.html#aa070cf76ca3ef43a3b8db17c77d35669">operations_research::Domain::SmallestValue</a></div><div class="ttdeci">int64_t SmallestValue() const</div><div class="ttdoc">Returns the value closest to zero.</div><div class="ttdef"><b>Definition:</b> <a href="sorted__interval__list_8cc_source.html#l00224">sorted_interval_list.cc:224</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_constraint_proto_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_constraint_proto.html">operations_research::sat::ConstraintProto</a></div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l03772">cp_model.pb.h:3773</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_constraint_proto_html_ada030f50fcddb646af448ac7c5705e35aaadb0c3370c597095e0cb7e768f04567"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_constraint_proto.html#ada030f50fcddb646af448ac7c5705e35aaadb0c3370c597095e0cb7e768f04567">operations_research::sat::ConstraintProto::kBoolOr</a></div><div class="ttdeci">@ kBoolOr</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l03816">cp_model.pb.h:3816</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_constraint_proto_html_ada030f50fcddb646af448ac7c5705e35ac188c019178783e5be55110601309d7d"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_constraint_proto.html#ada030f50fcddb646af448ac7c5705e35ac188c019178783e5be55110601309d7d">operations_research::sat::ConstraintProto::kLinear</a></div><div class="ttdeci">@ kLinear</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l03825">cp_model.pb.h:3825</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_constraint_proto_html_ada030f50fcddb646af448ac7c5705e35acd33b6e972e153ab1a911c84c9585a42"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_constraint_proto.html#ada030f50fcddb646af448ac7c5705e35acd33b6e972e153ab1a911c84c9585a42">operations_research::sat::ConstraintProto::kElement</a></div><div class="ttdeci">@ kElement</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l03827">cp_model.pb.h:3827</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_constraint_proto_html_ada030f50fcddb646af448ac7c5705e35ad60570d9bed938f8b11385a7ba7f3508"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_constraint_proto.html#ada030f50fcddb646af448ac7c5705e35ad60570d9bed938f8b11385a7ba7f3508">operations_research::sat::ConstraintProto::kExactlyOne</a></div><div class="ttdeci">@ kExactlyOne</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l03819">cp_model.pb.h:3819</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_constraint_proto_html_ada030f50fcddb646af448ac7c5705e35afa67b6d38ac5fc27ad2cac3d2f392e39"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_constraint_proto.html#ada030f50fcddb646af448ac7c5705e35afa67b6d38ac5fc27ad2cac3d2f392e39">operations_research::sat::ConstraintProto::kLinMax</a></div><div class="ttdeci">@ kLinMax</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l03824">cp_model.pb.h:3824</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_proto_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_proto.html">operations_research::sat::CpModelProto</a></div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l06111">cp_model.pb.h:6112</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_proto_html_a6a4544ca20489d70e302f5d6d374a012"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_proto.html#a6a4544ca20489d70e302f5d6d374a012">operations_research::sat::CpModelProto::variables</a></div><div class="ttdeci">const ::operations_research::sat::IntegerVariableProto & variables(int index) const</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l12243">cp_model.pb.h:12243</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_proto_html_abef5f55c3278c137faca92b8e433f8ea"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_proto.html#abef5f55c3278c137faca92b8e433f8ea">operations_research::sat::CpModelProto::variables_size</a></div><div class="ttdeci">int variables_size() const</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l12225">cp_model.pb.h:12225</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_proto_html_aeaf0da781ca9b370d96b7fbd3f74266a"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_proto.html#aeaf0da781ca9b370d96b7fbd3f74266a">operations_research::sat::CpModelProto::constraints_size</a></div><div class="ttdeci">int constraints_size() const</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l12265">cp_model.pb.h:12265</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_proto_html_afce66afa8ae7776a449bba7313ea3559"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_proto.html#afce66afa8ae7776a449bba7313ea3559">operations_research::sat::CpModelProto::constraints</a></div><div class="ttdeci">const ::operations_research::sat::ConstraintProto & constraints(int index) const</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l12283">cp_model.pb.h:12283</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_expression_proto_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_expression_proto.html">operations_research::sat::LinearExpressionProto</a></div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l00608">cp_model.pb.h:609</a></div></div>
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<div class="ttc" id="acp__model__postsolve_8h_html"><div class="ttname"><a href="cp__model__postsolve_8h.html">cp_model_postsolve.h</a></div></div>
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<div class="ttc" id="acp__model__utils_8h_html"><div class="ttname"><a href="cp__model__utils_8h.html">cp_model_utils.h</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="alog__severity_8h_html_acdd38e3c9f22f127d7776920e3079eda"><div class="ttname"><a href="log__severity_8h.html#acdd38e3c9f22f127d7776920e3079eda">FATAL</a></div><div class="ttdeci">const int FATAL</div><div class="ttdef"><b>Definition:</b> <a href="log__severity_8h_source.html#l00032">log_severity.h:32</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a1743e4469ce5d2535719981c49544a5d"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a1743e4469ce5d2535719981c49544a5d">operations_research::sat::PostsolveElement</a></div><div class="ttdeci">void PostsolveElement(const ConstraintProto &ct, std::vector< Domain > *domains)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__postsolve_8cc_source.html#l00221">cp_model_postsolve.cc:221</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a1951d3606d9c0c92204c310b911bf0e7"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a1951d3606d9c0c92204c310b911bf0e7">operations_research::sat::PostsolveLinear</a></div><div class="ttdeci">void PostsolveLinear(const ConstraintProto &ct, std::vector< Domain > *domains)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__postsolve_8cc_source.html#l00107">cp_model_postsolve.cc:107</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a217338425de4389014563f1f24331713"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a217338425de4389014563f1f24331713">operations_research::sat::RefIsPositive</a></div><div class="ttdeci">bool RefIsPositive(int ref)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__utils_8h_source.html#l00036">cp_model_utils.h:36</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a4699c7fe17ad6e3cbf4bc40bc0c4be59"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a4699c7fe17ad6e3cbf4bc40bc0c4be59">operations_research::sat::PostsolveResponse</a></div><div class="ttdeci">void PostsolveResponse(const int64_t num_variables_in_original_model, const CpModelProto &mapping_proto, const std::vector< int > &postsolve_mapping, std::vector< int64_t > *solution)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__postsolve_8cc_source.html#l00304">cp_model_postsolve.cc:304</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a4d3c6ea5e2b95e4d7e45d6146c61c2ce"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a4d3c6ea5e2b95e4d7e45d6146c61c2ce">operations_research::sat::IsFixed</a></div><div class="ttdeci">std::function< bool(const Model &)> IsFixed(IntegerVariable v)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01665">integer.h:1665</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a62feb42f880fdeb019acf6a06cff70c1"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a62feb42f880fdeb019acf6a06cff70c1">operations_research::sat::PostsolveExactlyOne</a></div><div class="ttdeci">void PostsolveExactlyOne(const ConstraintProto &ct, std::vector< Domain > *domains)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__postsolve_8cc_source.html#l00053">cp_model_postsolve.cc:53</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a73e2ec8896aa53a5c58f86dfd68e6f19"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a73e2ec8896aa53a5c58f86dfd68e6f19">operations_research::sat::SetEnforcementLiteralToFalse</a></div><div class="ttdeci">void SetEnforcementLiteralToFalse(const ConstraintProto &ct, std::vector< Domain > *domains)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__postsolve_8cc_source.html#l00084">cp_model_postsolve.cc:84</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a86b855c27a037ed3eec043f0f0f25e2e"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a86b855c27a037ed3eec043f0f0f25e2e">operations_research::sat::PostsolveLinMax</a></div><div class="ttdeci">void PostsolveLinMax(const ConstraintProto &ct, std::vector< Domain > *domains)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__postsolve_8cc_source.html#l00208">cp_model_postsolve.cc:208</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_ab1240060466ba48a36a4b36379bce26a"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#ab1240060466ba48a36a4b36379bce26a">operations_research::sat::ReadDomainFromProto</a></div><div class="ttdeci">Domain ReadDomainFromProto(const ProtoWithDomain &proto)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__utils_8h_source.html#l00104">cp_model_utils.h:104</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_ab67697c2e8ba7d65eff35db17d7b94a9"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#ab67697c2e8ba7d65eff35db17d7b94a9">operations_research::sat::PostsolveClause</a></div><div class="ttdeci">void PostsolveClause(const ConstraintProto &ct, std::vector< Domain > *domains)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__postsolve_8cc_source.html#l00030">cp_model_postsolve.cc:30</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_acdbc8ad33149d45a6e6fcd8b72fd68ed"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#acdbc8ad33149d45a6e6fcd8b72fd68ed">operations_research::sat::PositiveRef</a></div><div class="ttdeci">int PositiveRef(int ref)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__utils_8h_source.html#l00035">cp_model_utils.h:35</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_adc1745a206c1ed3667e9de782d8a8c13"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#adc1745a206c1ed3667e9de782d8a8c13">operations_research::sat::GetSingleRefFromExpression</a></div><div class="ttdeci">int GetSingleRefFromExpression(const LinearExpressionProto &expr)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__utils_8cc_source.html#l00531">cp_model_utils.cc:531</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="avariable__and__expressions_8cc_html_a2091cd7d80fdd31762020bce86138587"><div class="ttname"><a href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a></div><div class="ttdeci">const double coeff</div><div class="ttdef"><b>Definition:</b> <a href="variable__and__expressions_8cc_source.html#l00104">variable_and_expressions.cc:104</a></div></div>
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