827 lines
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827 lines
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<div class="headertitle"><div class="title">encoding.cc</div></div>
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<a href="encoding_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="encoding_8h.html">ortools/sat/encoding.h</a>"</span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include <algorithm></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <cstdint></span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include <deque></span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include <queue></span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include <vector></span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include "<a class="code" href="base_2logging_8h.html">ortools/base/logging.h</a>"</span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include "ortools/sat/boolean_problem.pb.h"</span></div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include "<a class="code" href="pb__constraint_8h.html">ortools/sat/pb_constraint.h</a>"</span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include "<a class="code" href="sat__base_8h.html">ortools/sat/sat_base.h</a>"</span></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include "ortools/sat/sat_parameters.pb.h"</span></div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include "<a class="code" href="sat__solver_8h.html">ortools/sat/sat_solver.h</a>"</span></div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include "<a class="code" href="strong__integers_8h.html">ortools/util/strong_integers.h</a>"</span></div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</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="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="keyword">namespace </span>sat {</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_encoding_node.html#a24ab1a268b54af8be091271be8d86236"> 33</a></span><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#afcc0ba7af448641ff70c751416efb4ae">EncodingNode::EncodingNode</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a> l)</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> : for_sorting_(l.Variable()),</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> child_a_(nullptr),</div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> child_b_(nullptr),</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> literals_(1, l) {}</div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> </div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_encoding_node.html#a6e81565ea8f030c21126024751b8d4be"> 39</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a6e81565ea8f030c21126024751b8d4be">EncodingNode::InitializeFullNode</a>(<span class="keywordtype">int</span> n, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>,</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* solver) {</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(literals_.empty()) << <span class="stringliteral">"Already initialized"</span>;</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <a class="code hl_define" href="base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6">CHECK_GT</a>(n, 0);</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">const</span> BooleanVariable first_var_index(solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a9d3beb2afe4ae647674b054bf29290e2">NumVariables</a>());</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a0b58ef3a397720b272662f8bc45585cb">SetNumVariables</a>(solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a9d3beb2afe4ae647674b054bf29290e2">NumVariables</a>() + n);</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < n; ++i) {</div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> literals_.push_back(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(first_var_index + i, <span class="keyword">true</span>));</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keywordflow">if</span> (i > 0) {</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#aac912e9410b8989493f492fcbb2d9094">AddBinaryClause</a>(<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a8d59d3e1fa9887ff055c7a6853055198">literal</a>(i - 1), <a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a8d59d3e1fa9887ff055c7a6853055198">literal</a>(i).Negated());</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> }</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> }</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> lb_ = <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->lb_ + <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->lb_;</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> ub_ = lb_ + n;</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> depth_ = 1 + <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->depth_, <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->depth_);</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> child_a_ = <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>;</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> child_b_ = <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>;</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> for_sorting_ = first_var_index;</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span>}</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> </div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_encoding_node.html#a6bea440eb7f63954ecf88b597d182ecb"> 59</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a6bea440eb7f63954ecf88b597d182ecb">EncodingNode::InitializeLazyNode</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>,</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* solver) {</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(literals_.empty()) << <span class="stringliteral">"Already initialized"</span>;</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keyword">const</span> BooleanVariable first_var_index(solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a9d3beb2afe4ae647674b054bf29290e2">NumVariables</a>());</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a0b58ef3a397720b272662f8bc45585cb">SetNumVariables</a>(solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a9d3beb2afe4ae647674b054bf29290e2">NumVariables</a>() + 1);</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> literals_.emplace_back(first_var_index, <span class="keyword">true</span>);</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> child_a_ = <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>;</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> child_b_ = <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>;</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> ub_ = <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->ub_ + <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->ub_;</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> lb_ = <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->lb_ + <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->lb_;</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> depth_ = 1 + <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->depth_, <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->depth_);</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> </div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="comment">// Merging the node of the same depth in order seems to help a bit.</span></div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> for_sorting_ = <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->for_sorting_, <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->for_sorting_);</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span>}</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"><a class="line" href="classoperations__research_1_1sat_1_1_encoding_node.html#a1a774190f5acacd461d1bf75be1f8af7"> 75</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a1a774190f5acacd461d1bf75be1f8af7">EncodingNode::InitializeLazyCoreNode</a>(<a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> <a class="code hl_variable" href="pack_8cc.html#a4255f714cea26cdd64f6a0ee72d34a8c">weight</a>, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>,</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>) {</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(literals_.empty()) << <span class="stringliteral">"Already initialized"</span>;</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> child_a_ = <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>;</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> child_b_ = <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>;</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> ub_ = <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->ub_ + <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->ub_;</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> weight_ = <a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a7f57c0d3f4a1efca82d8c0721556b9d7">weight</a>;</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> weight_lb_ = <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->lb_ + <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->lb_;</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> lb_ = weight_lb_ + 1;</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> depth_ = 1 + <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->depth_, <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->depth_);</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> </div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="comment">// Merging the node of the same depth in order seems to help a bit.</span></div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> for_sorting_ = <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->for_sorting_, <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->for_sorting_);</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span>}</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> </div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_encoding_node.html#a29f3df8e348017bbeaab35d77a4b3fa8"> 90</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a29f3df8e348017bbeaab35d77a4b3fa8">EncodingNode::IncreaseCurrentUB</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* solver) {</div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordflow">if</span> (<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a4101c336fb4c5135ceef3ab532d755cd">current_ub</a>() == ub_) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> literals_.emplace_back(BooleanVariable(solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a9d3beb2afe4ae647674b054bf29290e2">NumVariables</a>()), <span class="keyword">true</span>);</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a0b58ef3a397720b272662f8bc45585cb">SetNumVariables</a>(solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a9d3beb2afe4ae647674b054bf29290e2">NumVariables</a>() + 1);</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">if</span> (literals_.size() > 1) {</div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#aac912e9410b8989493f492fcbb2d9094">AddBinaryClause</a>(literals_.back().Negated(),</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> literals_[literals_.size() - 2]);</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">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span>}</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> </div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_encoding_node.html#a3ca866781a37374b8defaed83b57d602"> 101</a></span><a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a3ca866781a37374b8defaed83b57d602">EncodingNode::Reduce</a>(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>& solver) {</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keywordtype">int</span> i = 0;</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keywordflow">while</span> (i < literals_.size() &&</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> solver.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a4793952607a98dfddfbcc17abfabbb4b">Assignment</a>().<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#a5300129913f51dcb0b1c531e3248490e">LiteralIsTrue</a>(literals_[i])) {</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> ++i;</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> ++lb_;</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> }</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> literals_.erase(literals_.begin(), literals_.begin() + i);</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="keywordflow">while</span> (!literals_.empty() &&</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> solver.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a4793952607a98dfddfbcc17abfabbb4b">Assignment</a>().<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#acfd1646011e643f58fd7dc66d9cc90a5">LiteralIsFalse</a>(literals_.back())) {</div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> literals_.pop_back();</div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> ub_ = lb_ + literals_.size();</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> }</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> </div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keywordflow">if</span> (weight_lb_ >= lb_) <span class="keywordflow">return</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a>(0);</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> result = <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a>(lb_ - weight_lb_) * weight_;</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> weight_lb_ = lb_;</div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> <span class="keywordflow">return</span> result;</div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span>}</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> </div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_encoding_node.html#a2e40079f184eb47ba002820b1c8d7814"> 121</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a2e40079f184eb47ba002820b1c8d7814">EncodingNode::ApplyWeightUpperBound</a>(<a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> gap, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* solver) {</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <a class="code hl_define" href="base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6">CHECK_GT</a>(weight_, 0);</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> num_allowed = (gap / weight_);</div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> new_size =</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(<a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a>(0), <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a>(weight_lb_ - lb_) + num_allowed);</div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordflow">if</span> (<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#af9593d4a5ff4274efaf429cb4f9e57cc">size</a>() <= new_size) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = new_size.value(); i < <a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#af9593d4a5ff4274efaf429cb4f9e57cc">size</a>(); ++i) {</div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#afbbbc2f0845a82a5a5cfb3f00a61abe9">AddUnitClause</a>(<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a8d59d3e1fa9887ff055c7a6853055198">literal</a>(i).Negated());</div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> }</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> literals_.resize(new_size.value());</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> ub_ = lb_ + literals_.size();</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span>}</div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> </div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_encoding_node.html#a2666f50fdfaf51c1d78daf2256aacfa5"> 134</a></span><a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a2666f50fdfaf51c1d78daf2256aacfa5">EncodingNode::GetAssumption</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* solver) {</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a28af91866016be797ebb710a9b0479ff">HasNoWeight</a>());</div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> = weight_lb_ - lb_;</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <a class="code hl_define" href="base_2logging_8h.html#a7cc25402ecd7591b4c39934dd656b1f9">CHECK_GE</a>(<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>, 0) << <span class="stringliteral">"Not reduced?"</span>;</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keywordflow">while</span> (<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> >= literals_.size()) {</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <a class="code hl_define" href="base_2logging_8h.html#ab25e01a2942b821d66371fc68d53f2eb">CHECK_NE</a>(solver, <span class="keyword">nullptr</span>);</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#a6af701ea48c91ef8a59a67b5b8d355c2">IncreaseNodeSize</a>(<span class="keyword">this</span>, solver);</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> }</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keywordflow">return</span> literals_[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>].Negated();</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span>}</div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> </div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_encoding_node.html#a345efb9c8f2a5a6fa4786ed9e25b9208"> 145</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a345efb9c8f2a5a6fa4786ed9e25b9208">EncodingNode::IncreaseWeightLb</a>() {</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <a class="code hl_define" href="base_2logging_8h.html#a4bd2e815ca2f702a4b6aa744b1ff3b82">CHECK_LT</a>(weight_lb_ - lb_, literals_.size());</div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> weight_lb_++;</div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span>}</div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> </div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_encoding_node.html#a28af91866016be797ebb710a9b0479ff"> 150</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a28af91866016be797ebb710a9b0479ff">EncodingNode::HasNoWeight</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> <span class="keywordflow">return</span> weight_ == 0 || weight_lb_ >= ub_;</div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span>}</div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> </div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_encoding_node.html#a903b410531434c46abc6516983c6d4d0"> 154</a></span>std::string <a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a903b410531434c46abc6516983c6d4d0">EncodingNode::DebugString</a>(</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_variables_assignment.html">VariablesAssignment</a>& assignment)<span class="keyword"> const </span>{</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> std::string result;</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> absl::StrAppend(&result, <span class="stringliteral">"depth:"</span>, depth_);</div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> absl::StrAppend(&result, <span class="stringliteral">" ["</span>, lb_, <span class="stringliteral">","</span>, lb_ + literals_.size(), <span class="stringliteral">"]"</span>);</div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> absl::StrAppend(&result, <span class="stringliteral">" ub:"</span>, ub_);</div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> absl::StrAppend(&result, <span class="stringliteral">" weight:"</span>, weight_.value());</div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> absl::StrAppend(&result, <span class="stringliteral">" weight_lb:"</span>, weight_lb_);</div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> absl::StrAppend(&result, <span class="stringliteral">" values:"</span>);</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> limit = 20;</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = 0;</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 = 0; i < <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(literals_.size(), limit); ++i) {</div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="keywordtype">char</span> c = <span class="charliteral">'?'</span>;</div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> <span class="keywordflow">if</span> (assignment.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#a5300129913f51dcb0b1c531e3248490e">LiteralIsTrue</a>(literals_[i])) {</div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> c = <span class="charliteral">'1'</span>;</div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = i + 1;</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (assignment.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#acfd1646011e643f58fd7dc66d9cc90a5">LiteralIsFalse</a>(literals_[i])) {</div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> c = <span class="charliteral">'0'</span>;</div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> }</div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> result += c;</div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> }</div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> absl::StrAppend(&result, <span class="stringliteral">" val:"</span>, lb_ + <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordflow">return</span> result;</div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span>}</div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> </div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a99e372550892ddd117f7a23e4fd73518"> 179</a></span><a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a99e372550892ddd117f7a23e4fd73518">LazyMerge</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* solver) {</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a> n;</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> n.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a6bea440eb7f63954ecf88b597d182ecb">InitializeLazyNode</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>, <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>, solver);</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#aac912e9410b8989493f492fcbb2d9094">AddBinaryClause</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->literal(0).Negated(), n.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a8d59d3e1fa9887ff055c7a6853055198">literal</a>(0));</div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#aac912e9410b8989493f492fcbb2d9094">AddBinaryClause</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->literal(0).Negated(), n.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a8d59d3e1fa9887ff055c7a6853055198">literal</a>(0));</div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a0e8b0117614d340615ab66abec430d78">AddTernaryClause</a>(n.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a8d59d3e1fa9887ff055c7a6853055198">literal</a>(0).<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644">Negated</a>(), <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->literal(0),</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->literal(0));</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="keywordflow">return</span> n;</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> </div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a6af701ea48c91ef8a59a67b5b8d355c2"> 189</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a6af701ea48c91ef8a59a67b5b8d355c2">IncreaseNodeSize</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* node, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* solver) {</div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="keywordflow">if</span> (!node-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a29f3df8e348017bbeaab35d77a4b3fa8">IncreaseCurrentUB</a>(solver)) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> std::vector<EncodingNode*> to_process;</div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> to_process.push_back(node);</div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> </div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="comment">// Only one side of the constraint is mandatory (the one propagating the ones</span></div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="comment">// to the top of the encoding tree), and it seems more efficient not to encode</span></div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <span class="comment">// the other side.</span></div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <span class="comment">// TODO(user): Experiment more.</span></div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> complete_encoding = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> </div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <span class="keywordflow">while</span> (!to_process.empty()) {</div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* n = to_process.back();</div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a> = n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#ab4a971df4b55922bdbff74843db10dd1">child_a</a>();</div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a> = n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a4534d0c2b93a62ca6b7b08ec4c8a1365">child_b</a>();</div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> to_process.pop_back();</div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> </div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <span class="comment">// Note that since we were able to increase its size, n must have children.</span></div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> <span class="comment">// n->GreaterThan(target) is the new literal of n.</span></div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a> != <span class="keyword">nullptr</span>);</div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a> != <span class="keyword">nullptr</span>);</div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> <span class="keyword">const</span> <span class="keywordtype">int</span> target = n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a4101c336fb4c5135ceef3ab532d755cd">current_ub</a>() - 1;</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="comment">// Add a literal to a if needed.</span></div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> <span class="comment">// That is, now that the node n can go up to it new current_ub, if we need</span></div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="comment">// to increase the current_ub of a.</span></div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->current_ub() != <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->ub()) {</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#a7cc25402ecd7591b4c39934dd656b1f9">CHECK_GE</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->current_ub() - 1 + <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->lb(), target - 1);</div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->current_ub() - 1 + <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->lb() < target) {</div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->IncreaseCurrentUB(solver));</div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> to_process.push_back(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>);</div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> }</div>
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<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> }</div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> </div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> <span class="comment">// Add a literal to b if needed.</span></div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->current_ub() != <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->ub()) {</div>
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> <a class="code hl_define" href="base_2logging_8h.html#a7cc25402ecd7591b4c39934dd656b1f9">CHECK_GE</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->current_ub() - 1 + <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->lb(), target - 1);</div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->current_ub() - 1 + <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->lb() < target) {</div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->IncreaseCurrentUB(solver));</div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> to_process.push_back(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>);</div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> }</div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> }</div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> </div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="comment">// Wire the new literal of n correctly with its two children.</span></div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> ia = <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->lb(); ia < a->current_ub(); ++ia) {</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> ib = target - ia;</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <span class="keywordflow">if</span> (complete_encoding && ib >= <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->lb() && ib < b->current_ub()) {</div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <span class="comment">// if x <= ia and y <= ib then x + y <= ia + ib.</span></div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a0e8b0117614d340615ab66abec430d78">AddTernaryClause</a>(n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#ad43b46262f3e4103bd59aae627925fdf">GreaterThan</a>(target).<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644">Negated</a>(),</div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->GreaterThan(ia), <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->GreaterThan(ib));</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> <span class="keywordflow">if</span> (complete_encoding && ib == <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->ub()) {</div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#aac912e9410b8989493f492fcbb2d9094">AddBinaryClause</a>(n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#ad43b46262f3e4103bd59aae627925fdf">GreaterThan</a>(target).<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644">Negated</a>(),</div>
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->GreaterThan(ia));</div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> }</div>
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<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> </div>
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<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <span class="keywordflow">if</span> (ib - 1 == <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->lb() - 1) {</div>
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<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#aac912e9410b8989493f492fcbb2d9094">AddBinaryClause</a>(n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#ad43b46262f3e4103bd59aae627925fdf">GreaterThan</a>(target),</div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->GreaterThan(ia).Negated());</div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> }</div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="keywordflow">if</span> ((ib - 1) >= <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->lb() && (ib - 1) < <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->current_ub()) {</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <span class="comment">// if x > ia and y > ib - 1 then x + y > ia + ib.</span></div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a0e8b0117614d340615ab66abec430d78">AddTernaryClause</a>(n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#ad43b46262f3e4103bd59aae627925fdf">GreaterThan</a>(target),</div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->GreaterThan(ia).Negated(),</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->GreaterThan(ib - 1).Negated());</div>
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<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> }</div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> }</div>
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> </div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> <span class="comment">// Case ia = a->lb() - 1; a->GreaterThan(ia) always true.</span></div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> {</div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> <span class="keyword">const</span> <span class="keywordtype">int</span> ib = target - (<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->lb() - 1);</div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> <span class="keywordflow">if</span> ((ib - 1) == <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->lb() - 1) {</div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#afbbbc2f0845a82a5a5cfb3f00a61abe9">AddUnitClause</a>(n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#ad43b46262f3e4103bd59aae627925fdf">GreaterThan</a>(target));</div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> }</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> <span class="keywordflow">if</span> ((ib - 1) >= <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->lb() && (ib - 1) < <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->current_ub()) {</div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#aac912e9410b8989493f492fcbb2d9094">AddBinaryClause</a>(n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#ad43b46262f3e4103bd59aae627925fdf">GreaterThan</a>(target),</div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->GreaterThan(ib - 1).Negated());</div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> }</div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> }</div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> </div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> <span class="comment">// case ia == a->ub; a->GreaterThan(ia) always false.</span></div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> {</div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> <span class="keyword">const</span> <span class="keywordtype">int</span> ib = target - <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->ub();</div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> <span class="keywordflow">if</span> (complete_encoding && ib >= <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->lb() && ib < <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->current_ub()) {</div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#aac912e9410b8989493f492fcbb2d9094">AddBinaryClause</a>(n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#ad43b46262f3e4103bd59aae627925fdf">GreaterThan</a>(target).<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644">Negated</a>(),</div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->GreaterThan(ib));</div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> }</div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> <span class="keywordflow">if</span> (ib == <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->ub()) {</div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#afbbbc2f0845a82a5a5cfb3f00a61abe9">AddUnitClause</a>(n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#ad43b46262f3e4103bd59aae627925fdf">GreaterThan</a>(target).<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644">Negated</a>());</div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> }</div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> }</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>}</div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> </div>
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<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#aa357501e62925d41514301a6fd211c3e"> 284</a></span><a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aa357501e62925d41514301a6fd211c3e">FullMerge</a>(<a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> <a class="code hl_variable" href="gscip__solver_8cc.html#a1ba5ca0f61f2fa13bd23bf0f89004f35">upper_bound</a>, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>,</div>
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<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* solver) {</div>
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<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a> n;</div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> <span class="keyword">const</span> <span class="keywordtype">int</span> size =</div>
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<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(<a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->size() + <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->size()), <a class="code hl_variable" href="gscip__solver_8cc.html#a1ba5ca0f61f2fa13bd23bf0f89004f35">upper_bound</a>).value();</div>
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<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> n.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a6e81565ea8f030c21126024751b8d4be">InitializeFullNode</a>(size, <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>, <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>, solver);</div>
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<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> ia = 0; ia < <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->size(); ++ia) {</div>
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<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> <span class="keywordflow">if</span> (ia + <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->size() < size) {</div>
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<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#aac912e9410b8989493f492fcbb2d9094">AddBinaryClause</a>(n.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a8d59d3e1fa9887ff055c7a6853055198">literal</a>(ia + <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->size()).<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644">Negated</a>(),</div>
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<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->literal(ia));</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> <span class="keywordflow">if</span> (ia < size) {</div>
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<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#aac912e9410b8989493f492fcbb2d9094">AddBinaryClause</a>(n.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a8d59d3e1fa9887ff055c7a6853055198">literal</a>(ia), <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->literal(ia).Negated());</div>
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<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span> <span class="comment">// Fix the variable to false because of the given upper_bound.</span></div>
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<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#afbbbc2f0845a82a5a5cfb3f00a61abe9">AddUnitClause</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->literal(ia).Negated());</div>
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<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> }</div>
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<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> }</div>
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<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> ib = 0; ib < <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->size(); ++ib) {</div>
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<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> <span class="keywordflow">if</span> (ib + <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->size() < size) {</div>
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<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#aac912e9410b8989493f492fcbb2d9094">AddBinaryClause</a>(n.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a8d59d3e1fa9887ff055c7a6853055198">literal</a>(ib + <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->size()).<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644">Negated</a>(),</div>
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<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->literal(ib));</div>
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<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> }</div>
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<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> <span class="keywordflow">if</span> (ib < size) {</div>
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<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#aac912e9410b8989493f492fcbb2d9094">AddBinaryClause</a>(n.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a8d59d3e1fa9887ff055c7a6853055198">literal</a>(ib), <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->literal(ib).Negated());</div>
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<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> <span class="comment">// Fix the variable to false because of the given upper_bound.</span></div>
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<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#afbbbc2f0845a82a5a5cfb3f00a61abe9">AddUnitClause</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->literal(ib).Negated());</div>
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<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> }</div>
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<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> }</div>
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<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> ia = 0; ia < <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->size(); ++ia) {</div>
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<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> ib = 0; ib < <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->size(); ++ib) {</div>
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<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> <span class="keywordflow">if</span> (ia + ib < size) {</div>
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<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> <span class="comment">// if x <= ia and y <= ib, then x + y <= ia + ib.</span></div>
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<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a0e8b0117614d340615ab66abec430d78">AddTernaryClause</a>(n.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a8d59d3e1fa9887ff055c7a6853055198">literal</a>(ia + ib).<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644">Negated</a>(), <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->literal(ia),</div>
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<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->literal(ib));</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> <span class="keywordflow">if</span> (ia + ib + 1 < size) {</div>
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<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> <span class="comment">// if x > ia and y > ib, then x + y > ia + ib + 1.</span></div>
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<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a0e8b0117614d340615ab66abec430d78">AddTernaryClause</a>(n.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a8d59d3e1fa9887ff055c7a6853055198">literal</a>(ia + ib + 1),</div>
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<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->literal(ia).Negated(),</div>
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<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->literal(ib).Negated());</div>
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<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#aac912e9410b8989493f492fcbb2d9094">AddBinaryClause</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->literal(ia).Negated(),</div>
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<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->literal(ib).Negated());</div>
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<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> }</div>
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<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> }</div>
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<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> }</div>
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<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> <span class="keywordflow">return</span> n;</div>
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<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span>}</div>
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<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> </div>
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<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a29ff75f2188e0ac1c58fa4b0cf793a00"> 335</a></span><a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a29ff75f2188e0ac1c58fa4b0cf793a00">MergeAllNodesWithDeque</a>(<a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> <a class="code hl_variable" href="gscip__solver_8cc.html#a1ba5ca0f61f2fa13bd23bf0f89004f35">upper_bound</a>,</div>
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<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> <span class="keyword">const</span> std::vector<EncodingNode*>& <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>,</div>
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<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* solver,</div>
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<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> std::deque<EncodingNode>* repository) {</div>
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<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> std::deque<EncodingNode*> dq(<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>.begin(), <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>.end());</div>
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<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> <span class="keywordflow">while</span> (dq.size() > 1) {</div>
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<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a> = dq.front();</div>
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<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> dq.pop_front();</div>
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<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a> = dq.front();</div>
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<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> dq.pop_front();</div>
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<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> repository->push_back(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aa357501e62925d41514301a6fd211c3e">FullMerge</a>(<a class="code hl_variable" href="gscip__solver_8cc.html#a1ba5ca0f61f2fa13bd23bf0f89004f35">upper_bound</a>, <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>, <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>, solver));</div>
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<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> dq.push_back(&repository->back());</div>
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<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> }</div>
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<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> <span class="keywordflow">return</span> dq.front();</div>
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<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span>}</div>
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<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> </div>
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<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span><span class="keyword">namespace </span>{</div>
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<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span><span class="keyword">struct </span>SortEncodingNodePointers {</div>
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<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> <span class="keywordtype">bool</span> operator()(EncodingNode* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>, EncodingNode* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> *<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a> < *<a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>; }</div>
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<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span>};</div>
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<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span>} <span class="comment">// namespace</span></div>
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<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> </div>
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<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a377e4b11a03d712029888c83b492c1cb"> 357</a></span><a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a377e4b11a03d712029888c83b492c1cb">LazyMergeAllNodeWithPQAndIncreaseLb</a>(</div>
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<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> <a class="code hl_variable" href="pack_8cc.html#a4255f714cea26cdd64f6a0ee72d34a8c">weight</a>, <span class="keyword">const</span> std::vector<EncodingNode*>& <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>,</div>
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<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* solver, std::deque<EncodingNode>* repository) {</div>
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<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> std::priority_queue<EncodingNode*, std::vector<EncodingNode*>,</div>
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<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> SortEncodingNodePointers></div>
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<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span> pq(<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>.begin(), <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>.end());</div>
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<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> <span class="keywordflow">while</span> (pq.size() > 2) {</div>
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<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a> = pq.top();</div>
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<div class="line"><a id="l00365" name="l00365"></a><span class="lineno"> 365</span> pq.pop();</div>
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<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a> = pq.top();</div>
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<div class="line"><a id="l00367" name="l00367"></a><span class="lineno"> 367</span> pq.pop();</div>
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<div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span> repository->push_back(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a99e372550892ddd117f7a23e4fd73518">LazyMerge</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>, <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>, solver));</div>
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<div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> pq.push(&repository->back());</div>
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<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span> }</div>
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<div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span> </div>
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<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span> <a class="code hl_define" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(pq.size(), 2);</div>
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<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a> = pq.top();</div>
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<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span> pq.pop();</div>
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<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a> = pq.top();</div>
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<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> pq.pop();</div>
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<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> </div>
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<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> repository->push_back(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>());</div>
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<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* n = &repository->back();</div>
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<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a1a774190f5acacd461d1bf75be1f8af7">InitializeLazyCoreNode</a>(<a class="code hl_variable" href="pack_8cc.html#a4255f714cea26cdd64f6a0ee72d34a8c">weight</a>, <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>, <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>);</div>
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<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#aac912e9410b8989493f492fcbb2d9094">AddBinaryClause</a>(<a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->literal(0), <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->literal(0));</div>
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<div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> <span class="keywordflow">return</span> n;</div>
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<div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span>}</div>
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<div class="line"><a id="l00384" name="l00384"></a><span class="lineno"> 384</span> </div>
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<div class="line"><a id="l00385" name="l00385"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#aea70549adb843d22d06bef763a0960c8"> 385</a></span>std::vector<EncodingNode*> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aea70549adb843d22d06bef763a0960c8">CreateInitialEncodingNodes</a>(</div>
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<div class="line"><a id="l00386" name="l00386"></a><span class="lineno"> 386</span> <span class="keyword">const</span> std::vector<Literal>& literals,</div>
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<div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span> <span class="keyword">const</span> std::vector<Coefficient>& coeffs, <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a>* offset,</div>
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<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"> 388</span> std::deque<EncodingNode>* repository) {</div>
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<div class="line"><a id="l00389" name="l00389"></a><span class="lineno"> 389</span> <a class="code hl_define" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(literals.size(), coeffs.size());</div>
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<div class="line"><a id="l00390" name="l00390"></a><span class="lineno"> 390</span> *offset = 0;</div>
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<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"> 391</span> std::vector<EncodingNode*> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>;</div>
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<div class="line"><a id="l00392" name="l00392"></a><span class="lineno"> 392</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < literals.size(); ++i) {</div>
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<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span> <span class="comment">// We want to maximize the cost when this literal is true.</span></div>
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<div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span> <span class="keywordflow">if</span> (coeffs[i] > 0) {</div>
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<div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span> repository->emplace_back(literals[i]);</div>
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<div class="line"><a id="l00396" name="l00396"></a><span class="lineno"> 396</span> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>.push_back(&repository->back());</div>
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<div class="line"><a id="l00397" name="l00397"></a><span class="lineno"> 397</span> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>.back()->set_weight(coeffs[i]);</div>
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<div class="line"><a id="l00398" name="l00398"></a><span class="lineno"> 398</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00399" name="l00399"></a><span class="lineno"> 399</span> repository->emplace_back(literals[i].Negated());</div>
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<div class="line"><a id="l00400" name="l00400"></a><span class="lineno"> 400</span> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>.push_back(&repository->back());</div>
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|
<div class="line"><a id="l00401" name="l00401"></a><span class="lineno"> 401</span> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>.back()->set_weight(-coeffs[i]);</div>
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|
<div class="line"><a id="l00402" name="l00402"></a><span class="lineno"> 402</span> </div>
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<div class="line"><a id="l00403" name="l00403"></a><span class="lineno"> 403</span> <span class="comment">// Note that this increase the offset since the coeff is negative.</span></div>
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|
<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</span> *offset -= coeffs[i];</div>
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<div class="line"><a id="l00405" name="l00405"></a><span class="lineno"> 405</span> }</div>
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|
<div class="line"><a id="l00406" name="l00406"></a><span class="lineno"> 406</span> }</div>
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<div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>;</div>
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|
<div class="line"><a id="l00408" name="l00408"></a><span class="lineno"> 408</span>}</div>
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<div class="line"><a id="l00409" name="l00409"></a><span class="lineno"> 409</span> </div>
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<div class="line"><a id="l00410" name="l00410"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a49120b088df93ff6c25f3cf357fdab0e"> 410</a></span>std::vector<EncodingNode*> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aea70549adb843d22d06bef763a0960c8">CreateInitialEncodingNodes</a>(</div>
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<div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> <span class="keyword">const</span> LinearObjective& objective_proto, <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a>* offset,</div>
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<div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> std::deque<EncodingNode>* repository) {</div>
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<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</span> *offset = 0;</div>
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<div class="line"><a id="l00414" name="l00414"></a><span class="lineno"> 414</span> std::vector<EncodingNode*> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>;</div>
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<div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < objective_proto.literals_size(); ++i) {</div>
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<div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a> <a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>(objective_proto.literals(i));</div>
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<div class="line"><a id="l00417" name="l00417"></a><span class="lineno"> 417</span> </div>
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<div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> <span class="comment">// We want to maximize the cost when this literal is true.</span></div>
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|
<div class="line"><a id="l00419" name="l00419"></a><span class="lineno"> 419</span> <span class="keywordflow">if</span> (objective_proto.coefficients(i) > 0) {</div>
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<div class="line"><a id="l00420" name="l00420"></a><span class="lineno"> 420</span> repository->emplace_back(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>);</div>
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<div class="line"><a id="l00421" name="l00421"></a><span class="lineno"> 421</span> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>.push_back(&repository->back());</div>
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<div class="line"><a id="l00422" name="l00422"></a><span class="lineno"> 422</span> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>.back()->set_weight(<a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a>(objective_proto.coefficients(i)));</div>
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<div class="line"><a id="l00423" name="l00423"></a><span class="lineno"> 423</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00424" name="l00424"></a><span class="lineno"> 424</span> repository->emplace_back(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644">Negated</a>());</div>
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<div class="line"><a id="l00425" name="l00425"></a><span class="lineno"> 425</span> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>.push_back(&repository->back());</div>
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|
<div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>.back()->set_weight(<a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a>(-objective_proto.coefficients(i)));</div>
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|
<div class="line"><a id="l00427" name="l00427"></a><span class="lineno"> 427</span> </div>
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<div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</span> <span class="comment">// Note that this increase the offset since the coeff is negative.</span></div>
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|
<div class="line"><a id="l00429" name="l00429"></a><span class="lineno"> 429</span> *offset -= objective_proto.coefficients(i);</div>
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<div class="line"><a id="l00430" name="l00430"></a><span class="lineno"> 430</span> }</div>
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<div class="line"><a id="l00431" name="l00431"></a><span class="lineno"> 431</span> }</div>
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<div class="line"><a id="l00432" name="l00432"></a><span class="lineno"> 432</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>;</div>
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|
<div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span>}</div>
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<div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</span> </div>
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<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span><span class="keyword">namespace </span>{</div>
|
|
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> </div>
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<div class="line"><a id="l00437" name="l00437"></a><span class="lineno"> 437</span><span class="keywordtype">bool</span> EncodingNodeByWeight(<span class="keyword">const</span> EncodingNode* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>, <span class="keyword">const</span> EncodingNode* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>) {</div>
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<div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->weight() < <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->weight();</div>
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|
<div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span>}</div>
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<div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> </div>
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<div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span><span class="keywordtype">bool</span> EncodingNodeByDepth(<span class="keyword">const</span> EncodingNode* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>, <span class="keyword">const</span> EncodingNode* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>) {</div>
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<div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>->depth() < <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>->depth();</div>
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|
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span>}</div>
|
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<div class="line"><a id="l00444" name="l00444"></a><span class="lineno"> 444</span> </div>
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<div class="line"><a id="l00445" name="l00445"></a><span class="lineno"> 445</span>} <span class="comment">// namespace</span></div>
|
|
<div class="line"><a id="l00446" name="l00446"></a><span class="lineno"> 446</span> </div>
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<div class="line"><a id="l00447" name="l00447"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a3c7b9fb850d243d90ea59790db13a676"> 447</a></span>std::vector<Literal> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a3c7b9fb850d243d90ea59790db13a676">ReduceNodesAndExtractAssumptions</a>(</div>
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<div class="line"><a id="l00448" name="l00448"></a><span class="lineno"> 448</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> <a class="code hl_variable" href="gscip__solver_8cc.html#a1ba5ca0f61f2fa13bd23bf0f89004f35">upper_bound</a>, <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> stratified_lower_bound,</div>
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<div class="line"><a id="l00449" name="l00449"></a><span class="lineno"> 449</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a>* <a class="code hl_variable" href="gscip__solver_8cc.html#a1e2f9a2352c1d9a6cada9544898fceec">lower_bound</a>, std::vector<EncodingNode*>* <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>,</div>
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<div class="line"><a id="l00450" name="l00450"></a><span class="lineno"> 450</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* solver) {</div>
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|
<div class="line"><a id="l00451" name="l00451"></a><span class="lineno"> 451</span> <span class="comment">// Remove the left-most variables fixed to one from each node.</span></div>
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|
<div class="line"><a id="l00452" name="l00452"></a><span class="lineno"> 452</span> <span class="comment">// Also update the lower_bound. Note that Reduce() needs the solver to be</span></div>
|
|
<div class="line"><a id="l00453" name="l00453"></a><span class="lineno"> 453</span> <span class="comment">// at the root node in order to work.</span></div>
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|
<div class="line"><a id="l00454" name="l00454"></a><span class="lineno"> 454</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ac035378cea0ed7b0978105547402faa8">Backtrack</a>(0);</div>
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|
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno"> 455</span> <span class="keywordflow">for</span> (<a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* n : *<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>) {</div>
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|
<div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span> *<a class="code hl_variable" href="gscip__solver_8cc.html#a1e2f9a2352c1d9a6cada9544898fceec">lower_bound</a> += n->Reduce(*solver);</div>
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|
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span> }</div>
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<div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span> </div>
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<div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</span> <span class="comment">// Fix the nodes right-most variables that are above the gap.</span></div>
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|
<div class="line"><a id="l00460" name="l00460"></a><span class="lineno"> 460</span> <span class="comment">// If we closed the problem, we abort and return and empty vector.</span></div>
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|
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="gscip__solver_8cc.html#a1ba5ca0f61f2fa13bd23bf0f89004f35">upper_bound</a> != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#afd482f2c4b9533b4d1f7379a578e9b18">kCoefficientMax</a>) {</div>
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<div class="line"><a id="l00462" name="l00462"></a><span class="lineno"> 462</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> gap = <a class="code hl_variable" href="gscip__solver_8cc.html#a1ba5ca0f61f2fa13bd23bf0f89004f35">upper_bound</a> - *<a class="code hl_variable" href="gscip__solver_8cc.html#a1e2f9a2352c1d9a6cada9544898fceec">lower_bound</a>;</div>
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|
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span> <span class="keywordflow">if</span> (gap < 0) <span class="keywordflow">return</span> {};</div>
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<div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</span> <span class="keywordflow">for</span> (<a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* n : *<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>) {</div>
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<div class="line"><a id="l00465" name="l00465"></a><span class="lineno"> 465</span> n->ApplyWeightUpperBound(gap, solver);</div>
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<div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> }</div>
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<div class="line"><a id="l00467" name="l00467"></a><span class="lineno"> 467</span> }</div>
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<div class="line"><a id="l00468" name="l00468"></a><span class="lineno"> 468</span> </div>
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<div class="line"><a id="l00469" name="l00469"></a><span class="lineno"> 469</span> <span class="comment">// Remove the empty nodes.</span></div>
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<div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->erase(std::remove_if(<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->begin(), <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->end(),</div>
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<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span> [](<a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>) { return a->HasNoWeight(); }),</div>
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<div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->end());</div>
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<div class="line"><a id="l00473" name="l00473"></a><span class="lineno"> 473</span> </div>
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<div class="line"><a id="l00474" name="l00474"></a><span class="lineno"> 474</span> <span class="comment">// Sort the nodes.</span></div>
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<div class="line"><a id="l00475" name="l00475"></a><span class="lineno"> 475</span> <span class="keywordflow">switch</span> (solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a1a5e26554d014197de9434d2c39e07e9">parameters</a>().max_sat_assumption_order()) {</div>
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<div class="line"><a id="l00476" name="l00476"></a><span class="lineno"> 476</span> <span class="keywordflow">case</span> SatParameters::DEFAULT_ASSUMPTION_ORDER:</div>
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<div class="line"><a id="l00477" name="l00477"></a><span class="lineno"> 477</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00478" name="l00478"></a><span class="lineno"> 478</span> <span class="keywordflow">case</span> SatParameters::ORDER_ASSUMPTION_BY_DEPTH:</div>
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<div class="line"><a id="l00479" name="l00479"></a><span class="lineno"> 479</span> std::sort(<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->begin(), <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->end(), EncodingNodeByDepth);</div>
|
|
<div class="line"><a id="l00480" name="l00480"></a><span class="lineno"> 480</span> <span class="keywordflow">break</span>;</div>
|
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<div class="line"><a id="l00481" name="l00481"></a><span class="lineno"> 481</span> <span class="keywordflow">case</span> SatParameters::ORDER_ASSUMPTION_BY_WEIGHT:</div>
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<div class="line"><a id="l00482" name="l00482"></a><span class="lineno"> 482</span> std::sort(<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->begin(), <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->end(), EncodingNodeByWeight);</div>
|
|
<div class="line"><a id="l00483" name="l00483"></a><span class="lineno"> 483</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00484" name="l00484"></a><span class="lineno"> 484</span> }</div>
|
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<div class="line"><a id="l00485" name="l00485"></a><span class="lineno"> 485</span> <span class="keywordflow">if</span> (solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a1a5e26554d014197de9434d2c39e07e9">parameters</a>().max_sat_reverse_assumption_order()) {</div>
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|
<div class="line"><a id="l00486" name="l00486"></a><span class="lineno"> 486</span> <span class="comment">// TODO(user): with DEFAULT_ASSUMPTION_ORDER, this will lead to a somewhat</span></div>
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|
<div class="line"><a id="l00487" name="l00487"></a><span class="lineno"> 487</span> <span class="comment">// weird behavior, since we will reverse the nodes at each iteration...</span></div>
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<div class="line"><a id="l00488" name="l00488"></a><span class="lineno"> 488</span> std::reverse(<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->begin(), <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->end());</div>
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<div class="line"><a id="l00489" name="l00489"></a><span class="lineno"> 489</span> }</div>
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<div class="line"><a id="l00490" name="l00490"></a><span class="lineno"> 490</span> </div>
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<div class="line"><a id="l00491" name="l00491"></a><span class="lineno"> 491</span> <span class="comment">// Extract the assumptions from the nodes.</span></div>
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<div class="line"><a id="l00492" name="l00492"></a><span class="lineno"> 492</span> std::vector<Literal> assumptions;</div>
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<div class="line"><a id="l00493" name="l00493"></a><span class="lineno"> 493</span> <span class="keywordflow">for</span> (<a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* n : *<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>) {</div>
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<div class="line"><a id="l00494" name="l00494"></a><span class="lineno"> 494</span> <span class="keywordflow">if</span> (n->weight() >= stratified_lower_bound) {</div>
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<div class="line"><a id="l00495" name="l00495"></a><span class="lineno"> 495</span> assumptions.push_back(n->GetAssumption(solver));</div>
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<div class="line"><a id="l00496" name="l00496"></a><span class="lineno"> 496</span> }</div>
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<div class="line"><a id="l00497" name="l00497"></a><span class="lineno"> 497</span> }</div>
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<div class="line"><a id="l00498" name="l00498"></a><span class="lineno"> 498</span> <span class="keywordflow">return</span> assumptions;</div>
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<div class="line"><a id="l00499" name="l00499"></a><span class="lineno"> 499</span>}</div>
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<div class="line"><a id="l00500" name="l00500"></a><span class="lineno"> 500</span> </div>
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<div class="line"><a id="l00501" name="l00501"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a1c9d74b9b207b6e5513334dd135a00a9"> 501</a></span><a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1c9d74b9b207b6e5513334dd135a00a9">ComputeCoreMinWeight</a>(<span class="keyword">const</span> std::vector<EncodingNode*>& <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>,</div>
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<div class="line"><a id="l00502" name="l00502"></a><span class="lineno"> 502</span> <span class="keyword">const</span> std::vector<Literal>& core) {</div>
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<div class="line"><a id="l00503" name="l00503"></a><span class="lineno"> 503</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> min_weight = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#afd482f2c4b9533b4d1f7379a578e9b18">kCoefficientMax</a>;</div>
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<div class="line"><a id="l00504" name="l00504"></a><span class="lineno"> 504</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> = 0;</div>
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<div class="line"><a id="l00505" name="l00505"></a><span class="lineno"> 505</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < core.size(); ++i) {</div>
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<div class="line"><a id="l00506" name="l00506"></a><span class="lineno"> 506</span> <span class="keywordflow">for</span> (; <a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> < <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>.size() &&</div>
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<div class="line"><a id="l00507" name="l00507"></a><span class="lineno"> 507</span> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>]->GetAssumption(<span class="keyword">nullptr</span>) != core[i];</div>
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<div class="line"><a id="l00508" name="l00508"></a><span class="lineno"> 508</span> ++<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>) {</div>
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<div class="line"><a id="l00509" name="l00509"></a><span class="lineno"> 509</span> }</div>
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<div class="line"><a id="l00510" name="l00510"></a><span class="lineno"> 510</span> <a class="code hl_define" href="base_2logging_8h.html#a4bd2e815ca2f702a4b6aa744b1ff3b82">CHECK_LT</a>(<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>, <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>.size());</div>
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<div class="line"><a id="l00511" name="l00511"></a><span class="lineno"> 511</span> min_weight = <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(min_weight, <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>]-><a class="code hl_variable" href="pack_8cc.html#a4255f714cea26cdd64f6a0ee72d34a8c">weight</a>());</div>
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<div class="line"><a id="l00512" name="l00512"></a><span class="lineno"> 512</span> }</div>
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<div class="line"><a id="l00513" name="l00513"></a><span class="lineno"> 513</span> <span class="keywordflow">return</span> min_weight;</div>
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<div class="line"><a id="l00514" name="l00514"></a><span class="lineno"> 514</span>}</div>
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<div class="line"><a id="l00515" name="l00515"></a><span class="lineno"> 515</span> </div>
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<div class="line"><a id="l00516" name="l00516"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#ad6c9cfad7e2fa7ae1bbff31720394436"> 516</a></span><a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ad6c9cfad7e2fa7ae1bbff31720394436">MaxNodeWeightSmallerThan</a>(<span class="keyword">const</span> std::vector<EncodingNode*>& <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>,</div>
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<div class="line"><a id="l00517" name="l00517"></a><span class="lineno"> 517</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> <a class="code hl_variable" href="gscip__solver_8cc.html#a1ba5ca0f61f2fa13bd23bf0f89004f35">upper_bound</a>) {</div>
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<div class="line"><a id="l00518" name="l00518"></a><span class="lineno"> 518</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> result(0);</div>
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<div class="line"><a id="l00519" name="l00519"></a><span class="lineno"> 519</span> <span class="keywordflow">for</span> (<a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* n : <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>) {</div>
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<div class="line"><a id="l00520" name="l00520"></a><span class="lineno"> 520</span> <a class="code hl_define" href="base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6">CHECK_GT</a>(n->weight(), 0);</div>
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<div class="line"><a id="l00521" name="l00521"></a><span class="lineno"> 521</span> <span class="keywordflow">if</span> (n->weight() < <a class="code hl_variable" href="gscip__solver_8cc.html#a1ba5ca0f61f2fa13bd23bf0f89004f35">upper_bound</a>) {</div>
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<div class="line"><a id="l00522" name="l00522"></a><span class="lineno"> 522</span> result = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(result, n->weight());</div>
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<div class="line"><a id="l00523" name="l00523"></a><span class="lineno"> 523</span> }</div>
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<div class="line"><a id="l00524" name="l00524"></a><span class="lineno"> 524</span> }</div>
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|
<div class="line"><a id="l00525" name="l00525"></a><span class="lineno"> 525</span> <span class="keywordflow">return</span> result;</div>
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|
<div class="line"><a id="l00526" name="l00526"></a><span class="lineno"> 526</span>}</div>
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|
<div class="line"><a id="l00527" name="l00527"></a><span class="lineno"> 527</span> </div>
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<div class="line"><a id="l00528" name="l00528"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#accf33b62b1612d7a8abf3014a2df933c"> 528</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#accf33b62b1612d7a8abf3014a2df933c">ProcessCore</a>(<span class="keyword">const</span> std::vector<Literal>& core, <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> min_weight,</div>
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|
<div class="line"><a id="l00529" name="l00529"></a><span class="lineno"> 529</span> std::deque<EncodingNode>* repository,</div>
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<div class="line"><a id="l00530" name="l00530"></a><span class="lineno"> 530</span> std::vector<EncodingNode*>* <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* solver) {</div>
|
|
<div class="line"><a id="l00531" name="l00531"></a><span class="lineno"> 531</span> <span class="comment">// Backtrack to be able to add new constraints.</span></div>
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|
<div class="line"><a id="l00532" name="l00532"></a><span class="lineno"> 532</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a9da38c8d2910442d551db5e360423029">ResetToLevelZero</a>();</div>
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|
<div class="line"><a id="l00533" name="l00533"></a><span class="lineno"> 533</span> <span class="keywordflow">if</span> (core.size() == 1) {</div>
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<div class="line"><a id="l00534" name="l00534"></a><span class="lineno"> 534</span> <span class="keywordflow">return</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#afbbbc2f0845a82a5a5cfb3f00a61abe9">AddUnitClause</a>(core[0].Negated());</div>
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|
<div class="line"><a id="l00535" name="l00535"></a><span class="lineno"> 535</span> }</div>
|
|
<div class="line"><a id="l00536" name="l00536"></a><span class="lineno"> 536</span> </div>
|
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<div class="line"><a id="l00537" name="l00537"></a><span class="lineno"> 537</span> <span class="comment">// Remove from nodes the EncodingNode in the core, merge them, and add the</span></div>
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|
<div class="line"><a id="l00538" name="l00538"></a><span class="lineno"> 538</span> <span class="comment">// resulting EncodingNode at the back.</span></div>
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<div class="line"><a id="l00539" name="l00539"></a><span class="lineno"> 539</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> = 0;</div>
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<div class="line"><a id="l00540" name="l00540"></a><span class="lineno"> 540</span> <span class="keywordtype">int</span> new_node_index = 0;</div>
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<div class="line"><a id="l00541" name="l00541"></a><span class="lineno"> 541</span> std::vector<EncodingNode*> to_merge;</div>
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<div class="line"><a id="l00542" name="l00542"></a><span class="lineno"> 542</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < core.size(); ++i) {</div>
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|
<div class="line"><a id="l00543" name="l00543"></a><span class="lineno"> 543</span> <span class="comment">// Since the nodes appear in order in the core, we can find the</span></div>
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|
<div class="line"><a id="l00544" name="l00544"></a><span class="lineno"> 544</span> <span class="comment">// relevant "objective" variable efficiently with a simple linear scan</span></div>
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|
<div class="line"><a id="l00545" name="l00545"></a><span class="lineno"> 545</span> <span class="comment">// in the nodes vector (done with index).</span></div>
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|
<div class="line"><a id="l00546" name="l00546"></a><span class="lineno"> 546</span> <span class="keywordflow">for</span> (; (*nodes)[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>]->GetAssumption(<span class="keyword">nullptr</span>) != core[i]; ++<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>) {</div>
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<div class="line"><a id="l00547" name="l00547"></a><span class="lineno"> 547</span> <a class="code hl_define" href="base_2logging_8h.html#a4bd2e815ca2f702a4b6aa744b1ff3b82">CHECK_LT</a>(<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>, <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->size());</div>
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<div class="line"><a id="l00548" name="l00548"></a><span class="lineno"> 548</span> (*nodes)[new_node_index] = (*nodes)[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>];</div>
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|
<div class="line"><a id="l00549" name="l00549"></a><span class="lineno"> 549</span> ++new_node_index;</div>
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<div class="line"><a id="l00550" name="l00550"></a><span class="lineno"> 550</span> }</div>
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<div class="line"><a id="l00551" name="l00551"></a><span class="lineno"> 551</span> <a class="code hl_define" href="base_2logging_8h.html#a4bd2e815ca2f702a4b6aa744b1ff3b82">CHECK_LT</a>(<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>, <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->size());</div>
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<div class="line"><a id="l00552" name="l00552"></a><span class="lineno"> 552</span> to_merge.push_back((*<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>)[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>]);</div>
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|
<div class="line"><a id="l00553" name="l00553"></a><span class="lineno"> 553</span> </div>
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<div class="line"><a id="l00554" name="l00554"></a><span class="lineno"> 554</span> <span class="comment">// Special case if the weight > min_weight. we keep it, but reduce its</span></div>
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<div class="line"><a id="l00555" name="l00555"></a><span class="lineno"> 555</span> <span class="comment">// cost. This is the same "trick" as in WPM1 used to deal with weight.</span></div>
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|
<div class="line"><a id="l00556" name="l00556"></a><span class="lineno"> 556</span> <span class="comment">// We basically split a clause with a larger weight in two identical</span></div>
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<div class="line"><a id="l00557" name="l00557"></a><span class="lineno"> 557</span> <span class="comment">// clauses, one with weight min_weight that will be merged and one with</span></div>
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<div class="line"><a id="l00558" name="l00558"></a><span class="lineno"> 558</span> <span class="comment">// the remaining weight.</span></div>
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<div class="line"><a id="l00559" name="l00559"></a><span class="lineno"> 559</span> <span class="keywordflow">if</span> ((*<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>)[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>]-><a class="code hl_variable" href="pack_8cc.html#a4255f714cea26cdd64f6a0ee72d34a8c">weight</a>() > min_weight) {</div>
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<div class="line"><a id="l00560" name="l00560"></a><span class="lineno"> 560</span> (*nodes)[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>]->set_weight((*<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>)[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>]-><a class="code hl_variable" href="pack_8cc.html#a4255f714cea26cdd64f6a0ee72d34a8c">weight</a>() - min_weight);</div>
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<div class="line"><a id="l00561" name="l00561"></a><span class="lineno"> 561</span> (*nodes)[new_node_index] = (*nodes)[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>];</div>
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|
<div class="line"><a id="l00562" name="l00562"></a><span class="lineno"> 562</span> ++new_node_index;</div>
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<div class="line"><a id="l00563" name="l00563"></a><span class="lineno"> 563</span> }</div>
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<div class="line"><a id="l00564" name="l00564"></a><span class="lineno"> 564</span> ++<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>;</div>
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<div class="line"><a id="l00565" name="l00565"></a><span class="lineno"> 565</span> }</div>
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<div class="line"><a id="l00566" name="l00566"></a><span class="lineno"> 566</span> <span class="keywordflow">for</span> (; <a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> < <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->size(); ++<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>) {</div>
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<div class="line"><a id="l00567" name="l00567"></a><span class="lineno"> 567</span> (*nodes)[new_node_index] = (*nodes)[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>];</div>
|
|
<div class="line"><a id="l00568" name="l00568"></a><span class="lineno"> 568</span> ++new_node_index;</div>
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<div class="line"><a id="l00569" name="l00569"></a><span class="lineno"> 569</span> }</div>
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<div class="line"><a id="l00570" name="l00570"></a><span class="lineno"> 570</span> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->resize(new_node_index);</div>
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<div class="line"><a id="l00571" name="l00571"></a><span class="lineno"> 571</span> <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->push_back(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a377e4b11a03d712029888c83b492c1cb">LazyMergeAllNodeWithPQAndIncreaseLb</a>(min_weight, to_merge,</div>
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|
<div class="line"><a id="l00572" name="l00572"></a><span class="lineno"> 572</span> solver, repository));</div>
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|
<div class="line"><a id="l00573" name="l00573"></a><span class="lineno"> 573</span> <span class="keywordflow">return</span> !solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ad2a33e1d9335cce63548abed6b5c8aab">IsModelUnsat</a>();</div>
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|
<div class="line"><a id="l00574" name="l00574"></a><span class="lineno"> 574</span>}</div>
|
|
<div class="line"><a id="l00575" name="l00575"></a><span class="lineno"> 575</span> </div>
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<div class="line"><a id="l00576" name="l00576"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#ae6a6bf1bcc04b9d64b9d9f4178e34333"> 576</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ae6a6bf1bcc04b9d64b9d9f4178e34333">ProcessCoreWithAlternativeEncoding</a>(<span class="keyword">const</span> std::vector<Literal>& core,</div>
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<div class="line"><a id="l00577" name="l00577"></a><span class="lineno"> 577</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">Coefficient</a> min_weight,</div>
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<div class="line"><a id="l00578" name="l00578"></a><span class="lineno"> 578</span> std::deque<EncodingNode>* repository,</div>
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<div class="line"><a id="l00579" name="l00579"></a><span class="lineno"> 579</span> std::vector<EncodingNode*>* <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>,</div>
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<div class="line"><a id="l00580" name="l00580"></a><span class="lineno"> 580</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* solver) {</div>
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<div class="line"><a id="l00581" name="l00581"></a><span class="lineno"> 581</span> <span class="comment">// Backtrack to be able to add new constraints.</span></div>
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<div class="line"><a id="l00582" name="l00582"></a><span class="lineno"> 582</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a9da38c8d2910442d551db5e360423029">ResetToLevelZero</a>();</div>
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<div class="line"><a id="l00583" name="l00583"></a><span class="lineno"> 583</span> </div>
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<div class="line"><a id="l00584" name="l00584"></a><span class="lineno"> 584</span> <span class="keywordflow">if</span> (core.size() == 1) {</div>
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<div class="line"><a id="l00585" name="l00585"></a><span class="lineno"> 585</span> <span class="keywordflow">return</span> solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#afbbbc2f0845a82a5a5cfb3f00a61abe9">AddUnitClause</a>(core[0].Negated());</div>
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<div class="line"><a id="l00586" name="l00586"></a><span class="lineno"> 586</span> }</div>
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<div class="line"><a id="l00587" name="l00587"></a><span class="lineno"> 587</span> </div>
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<div class="line"><a id="l00588" name="l00588"></a><span class="lineno"> 588</span> std::vector<EncodingNode*> new_nodes;</div>
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<div class="line"><a id="l00589" name="l00589"></a><span class="lineno"> 589</span> std::vector<EncodingNode*> to_merge;</div>
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<div class="line"><a id="l00590" name="l00590"></a><span class="lineno"> 590</span> </div>
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<div class="line"><a id="l00591" name="l00591"></a><span class="lineno"> 591</span> <span class="comment">// Preconditions.</span></div>
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<div class="line"><a id="l00592" name="l00592"></a><span class="lineno"> 592</span> <span class="keywordflow">for</span> (<a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* n : *<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>) {</div>
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<div class="line"><a id="l00593" name="l00593"></a><span class="lineno"> 593</span> <a class="code hl_define" href="base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6">CHECK_GT</a>(n->size(), 0);</div>
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<div class="line"><a id="l00594" name="l00594"></a><span class="lineno"> 594</span> }</div>
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<div class="line"><a id="l00595" name="l00595"></a><span class="lineno"> 595</span> </div>
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<div class="line"><a id="l00596" name="l00596"></a><span class="lineno"> 596</span> <span class="comment">// Remove from nodes the EncodingNode in the core, merge them, and add the</span></div>
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<div class="line"><a id="l00597" name="l00597"></a><span class="lineno"> 597</span> <span class="comment">// resulting EncodingNode at the back.</span></div>
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<div class="line"><a id="l00598" name="l00598"></a><span class="lineno"> 598</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> = 0;</div>
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<div class="line"><a id="l00599" name="l00599"></a><span class="lineno"> 599</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < core.size(); ++i) {</div>
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<div class="line"><a id="l00600" name="l00600"></a><span class="lineno"> 600</span> <span class="comment">// Since the nodes appear in order in the core, we can find the</span></div>
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<div class="line"><a id="l00601" name="l00601"></a><span class="lineno"> 601</span> <span class="comment">// relevant "objective" variable efficiently with a simple linear scan</span></div>
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<div class="line"><a id="l00602" name="l00602"></a><span class="lineno"> 602</span> <span class="comment">// in the nodes vector (done with index).</span></div>
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<div class="line"><a id="l00603" name="l00603"></a><span class="lineno"> 603</span> <a class="code hl_define" href="base_2logging_8h.html#a4bd2e815ca2f702a4b6aa744b1ff3b82">CHECK_LT</a>(<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>, <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->size());</div>
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<div class="line"><a id="l00604" name="l00604"></a><span class="lineno"> 604</span> <span class="keywordflow">for</span> (; (*nodes)[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>]->GetAssumption(<span class="keyword">nullptr</span>) != core[i]; ++<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>) {</div>
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<div class="line"><a id="l00605" name="l00605"></a><span class="lineno"> 605</span> <a class="code hl_define" href="base_2logging_8h.html#a4bd2e815ca2f702a4b6aa744b1ff3b82">CHECK_LT</a>(<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>, <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->size());</div>
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<div class="line"><a id="l00606" name="l00606"></a><span class="lineno"> 606</span> new_nodes.push_back((*<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>)[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>]);</div>
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<div class="line"><a id="l00607" name="l00607"></a><span class="lineno"> 607</span> }</div>
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<div class="line"><a id="l00608" name="l00608"></a><span class="lineno"> 608</span> <a class="code hl_define" href="base_2logging_8h.html#a4bd2e815ca2f702a4b6aa744b1ff3b82">CHECK_LT</a>(<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>, <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->size());</div>
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<div class="line"><a id="l00609" name="l00609"></a><span class="lineno"> 609</span> </div>
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<div class="line"><a id="l00610" name="l00610"></a><span class="lineno"> 610</span> <span class="comment">// We have a node from the core.</span></div>
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<div class="line"><a id="l00611" name="l00611"></a><span class="lineno"> 611</span> <span class="comment">// We will distinguish its first literal.</span></div>
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<div class="line"><a id="l00612" name="l00612"></a><span class="lineno"> 612</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* n = (*nodes)[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>];</div>
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<div class="line"><a id="l00613" name="l00613"></a><span class="lineno"> 613</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a> lit = n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a2666f50fdfaf51c1d78daf2256aacfa5">GetAssumption</a>(<span class="keyword">nullptr</span>).<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644">Negated</a>();</div>
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<div class="line"><a id="l00614" name="l00614"></a><span class="lineno"> 614</span> n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a345efb9c8f2a5a6fa4786ed9e25b9208">IncreaseWeightLb</a>();</div>
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<div class="line"><a id="l00615" name="l00615"></a><span class="lineno"> 615</span> ++<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>;</div>
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<div class="line"><a id="l00616" name="l00616"></a><span class="lineno"> 616</span> <a class="code hl_define" href="base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6">CHECK_GT</a>(n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#af9593d4a5ff4274efaf429cb4f9e57cc">size</a>(), 0);</div>
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<div class="line"><a id="l00617" name="l00617"></a><span class="lineno"> 617</span> </div>
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<div class="line"><a id="l00618" name="l00618"></a><span class="lineno"> 618</span> <span class="comment">// TODO(user): For node with same depth, the sorting order is not the same</span></div>
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<div class="line"><a id="l00619" name="l00619"></a><span class="lineno"> 619</span> <span class="comment">// if we create a new node or reuse one. Experiment what is the best order.</span></div>
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<div class="line"><a id="l00620" name="l00620"></a><span class="lineno"> 620</span> repository->emplace_back(lit);</div>
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<div class="line"><a id="l00621" name="l00621"></a><span class="lineno"> 621</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_encoding_node.html">EncodingNode</a>* new_bool_node = &repository->back();</div>
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<div class="line"><a id="l00622" name="l00622"></a><span class="lineno"> 622</span> new_bool_node-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#ad9823fa53cc58fc4444d3b2eaadb885c">set_depth</a>(n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a6fdd73f8011695b97659f2bea29325cb">depth</a>());</div>
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<div class="line"><a id="l00623" name="l00623"></a><span class="lineno"> 623</span> <a class="code hl_define" href="base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6">CHECK_GT</a>(new_bool_node-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#af9593d4a5ff4274efaf429cb4f9e57cc">size</a>(), 0);</div>
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<div class="line"><a id="l00624" name="l00624"></a><span class="lineno"> 624</span> to_merge.push_back(new_bool_node);</div>
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<div class="line"><a id="l00625" name="l00625"></a><span class="lineno"> 625</span> <span class="keywordflow">if</span> (n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a7f57c0d3f4a1efca82d8c0721556b9d7">weight</a>() > min_weight) {</div>
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<div class="line"><a id="l00626" name="l00626"></a><span class="lineno"> 626</span> new_bool_node-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#ac92f797a3120e43647b75cc41aa9033e">set_weight</a>(n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a7f57c0d3f4a1efca82d8c0721556b9d7">weight</a>() - min_weight);</div>
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<div class="line"><a id="l00627" name="l00627"></a><span class="lineno"> 627</span> new_nodes.push_back(new_bool_node);</div>
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<div class="line"><a id="l00628" name="l00628"></a><span class="lineno"> 628</span> }</div>
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<div class="line"><a id="l00629" name="l00629"></a><span class="lineno"> 629</span> </div>
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<div class="line"><a id="l00630" name="l00630"></a><span class="lineno"> 630</span> <span class="keywordflow">if</span> (!n-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_encoding_node.html#a28af91866016be797ebb710a9b0479ff">HasNoWeight</a>()) {</div>
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<div class="line"><a id="l00631" name="l00631"></a><span class="lineno"> 631</span> new_nodes.push_back(n);</div>
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<div class="line"><a id="l00632" name="l00632"></a><span class="lineno"> 632</span> }</div>
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<div class="line"><a id="l00633" name="l00633"></a><span class="lineno"> 633</span> }</div>
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<div class="line"><a id="l00634" name="l00634"></a><span class="lineno"> 634</span> </div>
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<div class="line"><a id="l00635" name="l00635"></a><span class="lineno"> 635</span> <span class="keywordflow">for</span> (; <a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> < <a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>->size(); ++<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>) {</div>
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<div class="line"><a id="l00636" name="l00636"></a><span class="lineno"> 636</span> new_nodes.push_back((*<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a>)[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>]);</div>
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<div class="line"><a id="l00637" name="l00637"></a><span class="lineno"> 637</span> }</div>
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<div class="line"><a id="l00638" name="l00638"></a><span class="lineno"> 638</span> </div>
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<div class="line"><a id="l00639" name="l00639"></a><span class="lineno"> 639</span> new_nodes.push_back(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a377e4b11a03d712029888c83b492c1cb">LazyMergeAllNodeWithPQAndIncreaseLb</a>(min_weight, to_merge,</div>
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<div class="line"><a id="l00640" name="l00640"></a><span class="lineno"> 640</span> solver, repository));</div>
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<div class="line"><a id="l00641" name="l00641"></a><span class="lineno"> 641</span> *<a class="code hl_variable" href="routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17">nodes</a> = new_nodes;</div>
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<div class="line"><a id="l00642" name="l00642"></a><span class="lineno"> 642</span> <span class="keywordflow">return</span> !solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ad2a33e1d9335cce63548abed6b5c8aab">IsModelUnsat</a>();</div>
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<div class="line"><a id="l00643" name="l00643"></a><span class="lineno"> 643</span>}</div>
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<div class="line"><a id="l00644" name="l00644"></a><span class="lineno"> 644</span> </div>
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<div class="line"><a id="l00645" name="l00645"></a><span class="lineno"> 645</span>} <span class="comment">// namespace sat</span></div>
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<div class="line"><a id="l00646" name="l00646"></a><span class="lineno"> 646</span>} <span class="comment">// namespace operations_research</span></div>
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<div class="ttc" id="aalldiff__cst_8cc_html_a26e6db9bcc64b584051ecc28171ed11f"><div class="ttname"><a href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">max</a></div><div class="ttdeci">int64_t max</div><div class="ttdef"><b>Definition:</b> <a href="alldiff__cst_8cc_source.html#l00140">alldiff_cst.cc:140</a></div></div>
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<div class="ttc" id="aalldiff__cst_8cc_html_ad10edae0a852d72fb76afb1c77735045"><div class="ttname"><a href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">min</a></div><div class="ttdeci">int64_t min</div><div class="ttdef"><b>Definition:</b> <a href="alldiff__cst_8cc_source.html#l00139">alldiff_cst.cc:139</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html"><div class="ttname"><a href="base_2logging_8h.html">logging.h</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a3e1cfef60e774a81f30eaddf26a3a274"><div class="ttname"><a href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a></div><div class="ttdeci">#define CHECK(condition)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00495">base/logging.h:495</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a4bd2e815ca2f702a4b6aa744b1ff3b82"><div class="ttname"><a href="base_2logging_8h.html#a4bd2e815ca2f702a4b6aa744b1ff3b82">CHECK_LT</a></div><div class="ttdeci">#define CHECK_LT(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00706">base/logging.h:706</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a7c0ce053b28d53aa4eaf3eb7fb71663b"><div class="ttname"><a href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a></div><div class="ttdeci">#define CHECK_EQ(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00703">base/logging.h:703</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a7cc25402ecd7591b4c39934dd656b1f9"><div class="ttname"><a href="base_2logging_8h.html#a7cc25402ecd7591b4c39934dd656b1f9">CHECK_GE</a></div><div class="ttdeci">#define CHECK_GE(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00707">base/logging.h:707</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a7e03ec13560fa94a8fea569960d7efc6"><div class="ttname"><a href="base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6">CHECK_GT</a></div><div class="ttdeci">#define CHECK_GT(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00708">base/logging.h:708</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_ab25e01a2942b821d66371fc68d53f2eb"><div class="ttname"><a href="base_2logging_8h.html#ab25e01a2942b821d66371fc68d53f2eb">CHECK_NE</a></div><div class="ttdeci">#define CHECK_NE(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00704">base/logging.h:704</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html">operations_research::sat::EncodingNode</a></div><div class="ttdef"><b>Definition:</b> <a href="encoding_8h_source.html#l00057">encoding.h:57</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_a1a774190f5acacd461d1bf75be1f8af7"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#a1a774190f5acacd461d1bf75be1f8af7">operations_research::sat::EncodingNode::InitializeLazyCoreNode</a></div><div class="ttdeci">void InitializeLazyCoreNode(Coefficient weight, EncodingNode *a, EncodingNode *b)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00075">encoding.cc:75</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_a2666f50fdfaf51c1d78daf2256aacfa5"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#a2666f50fdfaf51c1d78daf2256aacfa5">operations_research::sat::EncodingNode::GetAssumption</a></div><div class="ttdeci">Literal GetAssumption(SatSolver *solver)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00134">encoding.cc:134</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_a28af91866016be797ebb710a9b0479ff"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#a28af91866016be797ebb710a9b0479ff">operations_research::sat::EncodingNode::HasNoWeight</a></div><div class="ttdeci">bool HasNoWeight() const</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00150">encoding.cc:150</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_a29f3df8e348017bbeaab35d77a4b3fa8"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#a29f3df8e348017bbeaab35d77a4b3fa8">operations_research::sat::EncodingNode::IncreaseCurrentUB</a></div><div class="ttdeci">bool IncreaseCurrentUB(SatSolver *solver)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00090">encoding.cc:90</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_a2e40079f184eb47ba002820b1c8d7814"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#a2e40079f184eb47ba002820b1c8d7814">operations_research::sat::EncodingNode::ApplyWeightUpperBound</a></div><div class="ttdeci">void ApplyWeightUpperBound(Coefficient gap, SatSolver *solver)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00121">encoding.cc:121</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_a345efb9c8f2a5a6fa4786ed9e25b9208"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#a345efb9c8f2a5a6fa4786ed9e25b9208">operations_research::sat::EncodingNode::IncreaseWeightLb</a></div><div class="ttdeci">void IncreaseWeightLb()</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00145">encoding.cc:145</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_a3ca866781a37374b8defaed83b57d602"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#a3ca866781a37374b8defaed83b57d602">operations_research::sat::EncodingNode::Reduce</a></div><div class="ttdeci">Coefficient Reduce(const SatSolver &solver)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00101">encoding.cc:101</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_a4101c336fb4c5135ceef3ab532d755cd"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#a4101c336fb4c5135ceef3ab532d755cd">operations_research::sat::EncodingNode::current_ub</a></div><div class="ttdeci">int current_ub() const</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8h_source.html#l00129">encoding.h:129</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_a4534d0c2b93a62ca6b7b08ec4c8a1365"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#a4534d0c2b93a62ca6b7b08ec4c8a1365">operations_research::sat::EncodingNode::child_b</a></div><div class="ttdeci">EncodingNode * child_b() const</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8h_source.html#l00132">encoding.h:132</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_a6bea440eb7f63954ecf88b597d182ecb"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#a6bea440eb7f63954ecf88b597d182ecb">operations_research::sat::EncodingNode::InitializeLazyNode</a></div><div class="ttdeci">void InitializeLazyNode(EncodingNode *a, EncodingNode *b, SatSolver *solver)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00059">encoding.cc:59</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_a6e81565ea8f030c21126024751b8d4be"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#a6e81565ea8f030c21126024751b8d4be">operations_research::sat::EncodingNode::InitializeFullNode</a></div><div class="ttdeci">void InitializeFullNode(int n, EncodingNode *a, EncodingNode *b, SatSolver *solver)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00039">encoding.cc:39</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_a6fdd73f8011695b97659f2bea29325cb"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#a6fdd73f8011695b97659f2bea29325cb">operations_research::sat::EncodingNode::depth</a></div><div class="ttdeci">int depth() const</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8h_source.html#l00126">encoding.h:126</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_a7f57c0d3f4a1efca82d8c0721556b9d7"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#a7f57c0d3f4a1efca82d8c0721556b9d7">operations_research::sat::EncodingNode::weight</a></div><div class="ttdeci">Coefficient weight() const</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8h_source.html#l00121">encoding.h:121</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_a8d59d3e1fa9887ff055c7a6853055198"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#a8d59d3e1fa9887ff055c7a6853055198">operations_research::sat::EncodingNode::literal</a></div><div class="ttdeci">Literal literal(int i) const</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8h_source.html#l00084">encoding.h:84</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_a903b410531434c46abc6516983c6d4d0"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#a903b410531434c46abc6516983c6d4d0">operations_research::sat::EncodingNode::DebugString</a></div><div class="ttdeci">std::string DebugString(const VariablesAssignment &assignment) const</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00154">encoding.cc:154</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_ab4a971df4b55922bdbff74843db10dd1"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#ab4a971df4b55922bdbff74843db10dd1">operations_research::sat::EncodingNode::child_a</a></div><div class="ttdeci">EncodingNode * child_a() const</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8h_source.html#l00131">encoding.h:131</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_ac92f797a3120e43647b75cc41aa9033e"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#ac92f797a3120e43647b75cc41aa9033e">operations_research::sat::EncodingNode::set_weight</a></div><div class="ttdeci">void set_weight(Coefficient w)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8h_source.html#l00117">encoding.h:117</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_ad43b46262f3e4103bd59aae627925fdf"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#ad43b46262f3e4103bd59aae627925fdf">operations_research::sat::EncodingNode::GreaterThan</a></div><div class="ttdeci">Literal GreaterThan(int i) const</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8h_source.html#l00080">encoding.h:80</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_ad9823fa53cc58fc4444d3b2eaadb885c"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#ad9823fa53cc58fc4444d3b2eaadb885c">operations_research::sat::EncodingNode::set_depth</a></div><div class="ttdeci">void set_depth(int depth)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8h_source.html#l00125">encoding.h:125</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_af9593d4a5ff4274efaf429cb4f9e57cc"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#af9593d4a5ff4274efaf429cb4f9e57cc">operations_research::sat::EncodingNode::size</a></div><div class="ttdeci">int size() const</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8h_source.html#l00083">encoding.h:83</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_encoding_node_html_afcc0ba7af448641ff70c751416efb4ae"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_encoding_node.html#afcc0ba7af448641ff70c751416efb4ae">operations_research::sat::EncodingNode::EncodingNode</a></div><div class="ttdeci">EncodingNode()</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8h_source.html#l00059">encoding.h:59</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_literal_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_literal.html">operations_research::sat::Literal</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00067">sat_base.h:67</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_literal_html_a886e9c024f7209181c0a850b6e90c644"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644">operations_research::sat::Literal::Negated</a></div><div class="ttdeci">Literal Negated() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00094">sat_base.h:94</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html">operations_research::sat::SatSolver</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00061">sat_solver.h:61</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a0b58ef3a397720b272662f8bc45585cb"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a0b58ef3a397720b272662f8bc45585cb">operations_research::sat::SatSolver::SetNumVariables</a></div><div class="ttdeci">void SetNumVariables(int num_variables)</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00085">sat_solver.cc:85</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a0e8b0117614d340615ab66abec430d78"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a0e8b0117614d340615ab66abec430d78">operations_research::sat::SatSolver::AddTernaryClause</a></div><div class="ttdeci">bool AddTernaryClause(Literal a, Literal b, Literal c)</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00193">sat_solver.cc:193</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a1a5e26554d014197de9434d2c39e07e9"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a1a5e26554d014197de9434d2c39e07e9">operations_research::sat::SatSolver::parameters</a></div><div class="ttdeci">const SatParameters & parameters() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00131">sat_solver.cc:131</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a4793952607a98dfddfbcc17abfabbb4b"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a4793952607a98dfddfbcc17abfabbb4b">operations_research::sat::SatSolver::Assignment</a></div><div class="ttdeci">const VariablesAssignment & Assignment() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00378">sat_solver.h:378</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a9d3beb2afe4ae647674b054bf29290e2"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a9d3beb2afe4ae647674b054bf29290e2">operations_research::sat::SatSolver::NumVariables</a></div><div class="ttdeci">int NumVariables() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00086">sat_solver.h:86</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a9da38c8d2910442d551db5e360423029"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a9da38c8d2910442d551db5e360423029">operations_research::sat::SatSolver::ResetToLevelZero</a></div><div class="ttdeci">bool ResetToLevelZero()</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00579">sat_solver.cc:579</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_aac912e9410b8989493f492fcbb2d9094"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#aac912e9410b8989493f492fcbb2d9094">operations_research::sat::SatSolver::AddBinaryClause</a></div><div class="ttdeci">bool AddBinaryClause(Literal a, Literal b)</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00189">sat_solver.cc:189</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_ac035378cea0ed7b0978105547402faa8"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#ac035378cea0ed7b0978105547402faa8">operations_research::sat::SatSolver::Backtrack</a></div><div class="ttdeci">void Backtrack(int target_level)</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00991">sat_solver.cc:991</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_ad2a33e1d9335cce63548abed6b5c8aab"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#ad2a33e1d9335cce63548abed6b5c8aab">operations_research::sat::SatSolver::IsModelUnsat</a></div><div class="ttdeci">bool IsModelUnsat() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00139">sat_solver.h:139</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_afbbbc2f0845a82a5a5cfb3f00a61abe9"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#afbbbc2f0845a82a5a5cfb3f00a61abe9">operations_research::sat::SatSolver::AddUnitClause</a></div><div class="ttdeci">bool AddUnitClause(Literal true_literal)</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00185">sat_solver.cc:185</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_variables_assignment_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_variables_assignment.html">operations_research::sat::VariablesAssignment</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00125">sat_base.h:125</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_variables_assignment_html_a5300129913f51dcb0b1c531e3248490e"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_variables_assignment.html#a5300129913f51dcb0b1c531e3248490e">operations_research::sat::VariablesAssignment::LiteralIsTrue</a></div><div class="ttdeci">bool LiteralIsTrue(Literal literal) const</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00153">sat_base.h:153</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_variables_assignment_html_acfd1646011e643f58fd7dc66d9cc90a5"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_variables_assignment.html#acfd1646011e643f58fd7dc66d9cc90a5">operations_research::sat::VariablesAssignment::LiteralIsFalse</a></div><div class="ttdeci">bool LiteralIsFalse(Literal literal) const</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00150">sat_base.h:150</a></div></div>
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<div class="ttc" id="aconstraint__solver_2table_8cc_html_a9293e4d29cac928301645070dd307683"><div class="ttname"><a href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a></div><div class="ttdeci">int64_t b</div><div class="ttdef"><b>Definition:</b> <a href="constraint__solver_2table_8cc_source.html#l00047">constraint_solver/table.cc:47</a></div></div>
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<div class="ttc" id="aconstraint__solver_2table_8cc_html_acb18315d548212835cd8ed4287e6c0b6"><div class="ttname"><a href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a></div><div class="ttdeci">int64_t a</div><div class="ttdef"><b>Definition:</b> <a href="constraint__solver_2table_8cc_source.html#l00046">constraint_solver/table.cc:46</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="aencoding_8h_html"><div class="ttname"><a href="encoding_8h.html">encoding.h</a></div></div>
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<div class="ttc" id="agscip__solver_8cc_html_a1ba5ca0f61f2fa13bd23bf0f89004f35"><div class="ttname"><a href="gscip__solver_8cc.html#a1ba5ca0f61f2fa13bd23bf0f89004f35">upper_bound</a></div><div class="ttdeci">double upper_bound</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8cc_source.html#l00137">gscip_solver.cc:137</a></div></div>
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<div class="ttc" id="agscip__solver_8cc_html_a1e2f9a2352c1d9a6cada9544898fceec"><div class="ttname"><a href="gscip__solver_8cc.html#a1e2f9a2352c1d9a6cada9544898fceec">lower_bound</a></div><div class="ttdeci">double lower_bound</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8cc_source.html#l00136">gscip_solver.cc:136</a></div></div>
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<div class="ttc" id="alocal__search_8cc_html_a750b5d744c39a06bfb13e6eb010e35d0"><div class="ttname"><a href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a></div><div class="ttdeci">int index</div><div class="ttdef"><b>Definition:</b> <a href="local__search_8cc_source.html#l02750">local_search.cc:2750</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1math__opt_html_ab61209db5b13f0d424da009e414298fc"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#ab61209db5b13f0d424da009e414298fc">operations_research::math_opt::Coefficient</a></div><div class="ttdeci">std::tuple< int64_t, int64_t, const double > Coefficient</div><div class="ttdef"><b>Definition:</b> <a href="sparse__collection__matchers_8h_source.html#l00061">sparse_collection_matchers.h:61</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a1c9d74b9b207b6e5513334dd135a00a9"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a1c9d74b9b207b6e5513334dd135a00a9">operations_research::sat::ComputeCoreMinWeight</a></div><div class="ttdeci">Coefficient ComputeCoreMinWeight(const std::vector< EncodingNode * > &nodes, const std::vector< Literal > &core)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00501">encoding.cc:501</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a29ff75f2188e0ac1c58fa4b0cf793a00"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a29ff75f2188e0ac1c58fa4b0cf793a00">operations_research::sat::MergeAllNodesWithDeque</a></div><div class="ttdeci">EncodingNode * MergeAllNodesWithDeque(Coefficient upper_bound, const std::vector< EncodingNode * > &nodes, SatSolver *solver, std::deque< EncodingNode > *repository)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00335">encoding.cc:335</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a377e4b11a03d712029888c83b492c1cb"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a377e4b11a03d712029888c83b492c1cb">operations_research::sat::LazyMergeAllNodeWithPQAndIncreaseLb</a></div><div class="ttdeci">EncodingNode * LazyMergeAllNodeWithPQAndIncreaseLb(Coefficient weight, const std::vector< EncodingNode * > &nodes, SatSolver *solver, std::deque< EncodingNode > *repository)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00357">encoding.cc:357</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a3c7b9fb850d243d90ea59790db13a676"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a3c7b9fb850d243d90ea59790db13a676">operations_research::sat::ReduceNodesAndExtractAssumptions</a></div><div class="ttdeci">std::vector< Literal > ReduceNodesAndExtractAssumptions(Coefficient upper_bound, Coefficient stratified_lower_bound, Coefficient *lower_bound, std::vector< EncodingNode * > *nodes, SatSolver *solver)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00447">encoding.cc:447</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a6af701ea48c91ef8a59a67b5b8d355c2"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a6af701ea48c91ef8a59a67b5b8d355c2">operations_research::sat::IncreaseNodeSize</a></div><div class="ttdeci">void IncreaseNodeSize(EncodingNode *node, SatSolver *solver)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00189">encoding.cc:189</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a99e372550892ddd117f7a23e4fd73518"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a99e372550892ddd117f7a23e4fd73518">operations_research::sat::LazyMerge</a></div><div class="ttdeci">EncodingNode LazyMerge(EncodingNode *a, EncodingNode *b, SatSolver *solver)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00179">encoding.cc:179</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_aa357501e62925d41514301a6fd211c3e"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#aa357501e62925d41514301a6fd211c3e">operations_research::sat::FullMerge</a></div><div class="ttdeci">EncodingNode FullMerge(Coefficient upper_bound, EncodingNode *a, EncodingNode *b, SatSolver *solver)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00284">encoding.cc:284</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_accf33b62b1612d7a8abf3014a2df933c"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#accf33b62b1612d7a8abf3014a2df933c">operations_research::sat::ProcessCore</a></div><div class="ttdeci">bool ProcessCore(const std::vector< Literal > &core, Coefficient min_weight, std::deque< EncodingNode > *repository, std::vector< EncodingNode * > *nodes, SatSolver *solver)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00528">encoding.cc:528</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_ad6c9cfad7e2fa7ae1bbff31720394436"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#ad6c9cfad7e2fa7ae1bbff31720394436">operations_research::sat::MaxNodeWeightSmallerThan</a></div><div class="ttdeci">Coefficient MaxNodeWeightSmallerThan(const std::vector< EncodingNode * > &nodes, Coefficient upper_bound)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00516">encoding.cc:516</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_ae6a6bf1bcc04b9d64b9d9f4178e34333"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#ae6a6bf1bcc04b9d64b9d9f4178e34333">operations_research::sat::ProcessCoreWithAlternativeEncoding</a></div><div class="ttdeci">bool ProcessCoreWithAlternativeEncoding(const std::vector< Literal > &core, Coefficient min_weight, std::deque< EncodingNode > *repository, std::vector< EncodingNode * > *nodes, SatSolver *solver)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00576">encoding.cc:576</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_aea70549adb843d22d06bef763a0960c8"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#aea70549adb843d22d06bef763a0960c8">operations_research::sat::CreateInitialEncodingNodes</a></div><div class="ttdeci">std::vector< EncodingNode * > CreateInitialEncodingNodes(const std::vector< Literal > &literals, const std::vector< Coefficient > &coeffs, Coefficient *offset, std::deque< EncodingNode > *repository)</div><div class="ttdef"><b>Definition:</b> <a href="encoding_8cc_source.html#l00385">encoding.cc:385</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_afd482f2c4b9533b4d1f7379a578e9b18"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#afd482f2c4b9533b4d1f7379a578e9b18">operations_research::sat::kCoefficientMax</a></div><div class="ttdeci">const Coefficient kCoefficientMax(std::numeric_limits< Coefficient::ValueType >::max())</div></div>
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<div class="ttc" id="anamespaceoperations__research_html"><div class="ttname"><a href="namespaceoperations__research.html">operations_research</a></div><div class="ttdoc">Collection of objects used to extend the Constraint Solver library.</div><div class="ttdef"><b>Definition:</b> <a href="dense__doubly__linked__list_8h_source.html#l00021">dense_doubly_linked_list.h:21</a></div></div>
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<div class="ttc" id="aoptimization_8cc_html_af63dcc00f2023fdf498e0829e6fb8a6b"><div class="ttname"><a href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a></div><div class="ttdeci">Literal literal</div><div class="ttdef"><b>Definition:</b> <a href="optimization_8cc_source.html#l00089">optimization.cc:89</a></div></div>
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<div class="ttc" id="apb__constraint_8h_html"><div class="ttname"><a href="pb__constraint_8h.html">pb_constraint.h</a></div></div>
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