736 lines
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736 lines
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<div class="headertitle"><div class="title">circuit.cc</div></div>
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<a href="circuit_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="circuit_8h.html">ortools/sat/circuit.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 <functional></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <utility></span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include <vector></span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include "absl/container/flat_hash_map.h"</span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include "absl/meta/type_traits.h"</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 "<a class="code" href="map__util_8h.html">ortools/base/map_util.h</a>"</span></div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include "<a class="code" href="integer_8h.html">ortools/sat/integer.h</a>"</span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include "<a class="code" href="sat_2model_8h.html">ortools/sat/model.h</a>"</span></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</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="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_circuit_propagator.html#ab724d1b4067da7ec830cb4d1b8284ee7"> 33</a></span><a class="code hl_function" href="classoperations__research_1_1sat_1_1_circuit_propagator.html#ab724d1b4067da7ec830cb4d1b8284ee7">CircuitPropagator::CircuitPropagator</a>(<span class="keyword">const</span> <span class="keywordtype">int</span> num_nodes,</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">const</span> std::vector<int>& tails,</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">const</span> std::vector<int>& heads,</div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">const</span> std::vector<Literal>& literals,</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_circuit_propagator_1_1_options.html">Options</a> options, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)</div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> : num_nodes_(num_nodes),</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> options_(options),</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> trail_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_trail.html">Trail</a>>()),</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> assignment_(trail_-><a class="code hl_class" href="classoperations__research_1_1_assignment.html">Assignment</a>()) {</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#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!tails.empty()) << <span class="stringliteral">"Empty constraint, shouldn't be constructed!"</span>;</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> next_.resize(num_nodes_, -1);</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> prev_.resize(num_nodes_, -1);</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> next_literal_.resize(num_nodes_);</div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> must_be_in_cycle_.resize(num_nodes_);</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> absl::flat_hash_map<LiteralIndex, int> literal_to_watch_index;</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_arcs = tails.size();</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> graph_.reserve(num_arcs);</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> self_arcs_.resize(num_nodes_,</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_encoder.html">IntegerEncoder</a>>()-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_encoder.html#a299520ab923d28b4ee3051fe476d69fe">GetFalseLiteral</a>());</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> <a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a> = 0; <a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a> < num_arcs; ++<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>) {</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="routing__flow_8cc.html#afca32f65388659a4b0956496169488b4">head</a> = heads[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>];</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a> = tails[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>];</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</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> = literals[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>];</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordflow">if</span> (assignment_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#acfd1646011e643f58fd7dc66d9cc90a5">LiteralIsFalse</a>(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>)) <span class="keywordflow">continue</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"> 59</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a> == <a class="code hl_variable" href="routing__flow_8cc.html#afca32f65388659a4b0956496169488b4">head</a>) {</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> self_arcs_[<a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a>] = <a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>;</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> graph_[{<a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a>, <a class="code hl_variable" href="routing__flow_8cc.html#afca32f65388659a4b0956496169488b4">head</a>}] = <a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>;</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> }</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> </div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</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>(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>)) {</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keywordflow">if</span> (next_[<a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a>] != -1 || prev_[<a class="code hl_variable" href="routing__flow_8cc.html#afca32f65388659a4b0956496169488b4">head</a>] != -1) {</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(1) << <span class="stringliteral">"Trivially UNSAT or duplicate arcs while adding "</span> << <a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a></div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> << <span class="stringliteral">" -> "</span> << <a class="code hl_variable" href="routing__flow_8cc.html#afca32f65388659a4b0956496169488b4">head</a>;</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>>()->NotifyThatModelIsUnsat();</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> }</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> AddArc(<a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a>, <a class="code hl_variable" href="routing__flow_8cc.html#afca32f65388659a4b0956496169488b4">head</a>, <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>);</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keywordflow">continue</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"> 75</span> </div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="comment">// Tricky: For self-arc, we watch instead when the arc become false.</span></div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a> watched_literal = <a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a> == <a class="code hl_variable" href="routing__flow_8cc.html#afca32f65388659a4b0956496169488b4">head</a> ? <a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>.Negated() : <a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>;</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="keywordtype">int</span> watch_index = <a class="code hl_function" href="namespacegtl.html#a795ebdb62731938c8c31b221f0f074b4">gtl::FindWithDefault</a>(literal_to_watch_index,</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> watched_literal.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a4a11c7c4d7706c09de5e18707c3b5c62">Index</a>(), -1);</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keywordflow">if</span> (watch_index == -1) {</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> watch_index = watch_index_to_literal_.size();</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> literal_to_watch_index[watched_literal.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_literal.html#a4a11c7c4d7706c09de5e18707c3b5c62">Index</a>()] = watch_index;</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> watch_index_to_literal_.push_back(watched_literal);</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> watch_index_to_arcs_.push_back(std::vector<Arc>());</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> watch_index_to_arcs_[watch_index].push_back({<a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a>, <a class="code hl_variable" href="routing__flow_8cc.html#afca32f65388659a4b0956496169488b4">head</a>});</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> }</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> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> node = 0; node < num_nodes_; ++node) {</div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</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>(self_arcs_[node])) {</div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="comment">// For the multiple_subcircuit_through_zero case, must_be_in_cycle_ will</span></div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="comment">// be const and only contains zero.</span></div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="keywordflow">if</span> (node == 0 || !options_.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_circuit_propagator_1_1_options.html#af1123baeaa5412b68d37d8adf43ccb7c">multiple_subcircuit_through_zero</a>) {</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> must_be_in_cycle_[rev_must_be_in_cycle_size_++] = node;</div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> }</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> }</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>}</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"><a class="line" href="classoperations__research_1_1sat_1_1_circuit_propagator.html#a6ee8ed57254aec3ae99d399bae5b3736"> 100</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_circuit_propagator.html#a6ee8ed57254aec3ae99d399bae5b3736">CircuitPropagator::RegisterWith</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html">GenericLiteralWatcher</a>* watcher) {</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <span class="keywordtype">id</span> = watcher-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html#adeee4ac52bfe0f1b48ee8958bb88b4e3">Register</a>(<span class="keyword">this</span>);</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> w = 0; w < watch_index_to_literal_.size(); ++w) {</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> watcher-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html#a8f6dd74a841475ccb390614d2b212170">WatchLiteral</a>(watch_index_to_literal_[w], <span class="keywordtype">id</span>, w);</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> }</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> watcher-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html#a8b8fcdc97976ca46ea04a03fd874d9b3">RegisterReversibleClass</a>(<span class="keywordtype">id</span>, <span class="keyword">this</span>);</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> watcher-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html#a8963fd33e7bd70e749b2a37060ef1274">RegisterReversibleInt</a>(<span class="keywordtype">id</span>, &propagation_trail_index_);</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> watcher-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html#a8963fd33e7bd70e749b2a37060ef1274">RegisterReversibleInt</a>(<span class="keywordtype">id</span>, &rev_must_be_in_cycle_size_);</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> </div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="comment">// This is needed in case a Literal is used for more than one arc, we may</span></div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="comment">// propagate it to false/true here, and it might trigger more propagation.</span></div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="comment">// TODO(user): come up with a test that fail when this is not here.</span></div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> watcher-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html#aef66ce77e5b87afecf1c5696f44d4d1c">NotifyThatPropagatorMayNotReachFixedPointInOnePass</a>(<span class="keywordtype">id</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> </div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_circuit_propagator.html#a176d2c659864433ccd869b5fba8d57af"> 116</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_circuit_propagator.html#a176d2c659864433ccd869b5fba8d57af">CircuitPropagator::SetLevel</a>(<span class="keywordtype">int</span> level) {</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keywordflow">if</span> (level == level_ends_.size()) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> <span class="keywordflow">if</span> (level > level_ends_.size()) {</div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keywordflow">while</span> (level > level_ends_.size()) {</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> level_ends_.push_back(added_arcs_.size());</div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> }</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> }</div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> </div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="comment">// Backtrack.</span></div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = level_ends_[level]; i < added_arcs_.size(); ++i) {</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research.html#a7deeae530369e107f9d91c1a189f451f">Arc</a> <a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a> = added_arcs_[i];</div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> next_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.tail] = -1;</div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> prev_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.head] = -1;</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> }</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> added_arcs_.resize(level_ends_[level]);</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> level_ends_.resize(level);</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"> 134</span> </div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span><span class="keywordtype">void</span> CircuitPropagator::FillReasonForPath(<span class="keywordtype">int</span> start_node,</div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> std::vector<Literal>* reason)<span class="keyword"> const </span>{</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#ab25e01a2942b821d66371fc68d53f2eb">CHECK_NE</a>(start_node, -1);</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> reason->clear();</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="keywordtype">int</span> node = start_node;</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="keywordflow">while</span> (next_[node] != -1) {</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keywordflow">if</span> (next_literal_[node] != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>) {</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> reason->push_back(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(next_literal_[node]).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> node = next_[node];</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> <span class="keywordflow">if</span> (node == start_node) <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> }</div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span>}</div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> </div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span><span class="comment">// If multiple_subcircuit_through_zero is true, we never fill next_[0] and</span></div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span><span class="comment">// prev_[0].</span></div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span><span class="keywordtype">void</span> CircuitPropagator::AddArc(<span class="keywordtype">int</span> <a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a>, <span class="keywordtype">int</span> <a class="code hl_variable" href="routing__flow_8cc.html#afca32f65388659a4b0956496169488b4">head</a>, LiteralIndex literal_index) {</div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a> != 0 || !options_.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_circuit_propagator_1_1_options.html#af1123baeaa5412b68d37d8adf43ccb7c">multiple_subcircuit_through_zero</a>) {</div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> next_[<a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a>] = <a class="code hl_variable" href="routing__flow_8cc.html#afca32f65388659a4b0956496169488b4">head</a>;</div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> next_literal_[<a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a>] = literal_index;</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> }</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="routing__flow_8cc.html#afca32f65388659a4b0956496169488b4">head</a> != 0 || !options_.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_circuit_propagator_1_1_options.html#af1123baeaa5412b68d37d8adf43ccb7c">multiple_subcircuit_through_zero</a>) {</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> prev_[<a class="code hl_variable" href="routing__flow_8cc.html#afca32f65388659a4b0956496169488b4">head</a>] = <a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a>;</div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> }</div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span>}</div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> </div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_circuit_propagator.html#a45321337f970685d9847db005c4b3de1"> 161</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_circuit_propagator.html#a45321337f970685d9847db005c4b3de1">CircuitPropagator::IncrementalPropagate</a>(</div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="keyword">const</span> std::vector<int>& watch_indices) {</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> w : watch_indices) {</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</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> = watch_index_to_literal_[w];</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="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research.html#a7deeae530369e107f9d91c1a189f451f">Arc</a> <a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a> : watch_index_to_arcs_[w]) {</div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="comment">// Special case for self-arc.</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> (<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.tail == <a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.head) {</div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> must_be_in_cycle_[rev_must_be_in_cycle_size_++] = <a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.tail;</div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> }</div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> </div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <span class="comment">// Get rid of the trivial conflicts: At most one incoming and one outgoing</span></div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> <span class="comment">// arc for each nodes.</span></div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> <span class="keywordflow">if</span> (next_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.tail] != -1) {</div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> std::vector<Literal>* conflict = trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#ab932e215c6dff3fe8f077d4d6a409c0c">MutableConflict</a>();</div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordflow">if</span> (next_literal_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.tail] != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>) {</div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> *conflict = {<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(next_literal_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.tail]).<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="l00178" name="l00178"></a><span class="lineno"> 178</span> <a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>.Negated()};</div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> *conflict = {<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>.Negated()};</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> }</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> }</div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="keywordflow">if</span> (prev_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.head] != -1) {</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> std::vector<Literal>* conflict = trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#ab932e215c6dff3fe8f077d4d6a409c0c">MutableConflict</a>();</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="keywordflow">if</span> (next_literal_[prev_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.head]] != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>) {</div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> *conflict = {<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(next_literal_[prev_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.head]]).<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="l00188" name="l00188"></a><span class="lineno"> 188</span> <a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>.Negated()};</div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> *conflict = {<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>.Negated()};</div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> }</div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</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> </div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="comment">// Add the arc.</span></div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> AddArc(<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.tail, <a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.head, <a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>.Index());</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> added_arcs_.push_back(<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>);</div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> }</div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> }</div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> <span class="keywordflow">return</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_circuit_propagator.html#ac1fe9b1f2b978c4283e42f12e586eb1e">Propagate</a>();</div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span>}</div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> </div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span><span class="comment">// This function assumes that next_, prev_, next_literal_ and must_be_in_cycle_</span></div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span><span class="comment">// are all up to date.</span></div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_circuit_propagator.html#ac1fe9b1f2b978c4283e42f12e586eb1e"> 205</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_circuit_propagator.html#ac1fe9b1f2b978c4283e42f12e586eb1e">CircuitPropagator::Propagate</a>() {</div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> processed_.assign(num_nodes_, <span class="keyword">false</span>);</div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> n = 0; n < num_nodes_; ++n) {</div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> <span class="keywordflow">if</span> (processed_[n]) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> <span class="keywordflow">if</span> (next_[n] == n) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> <span class="keywordflow">if</span> (next_[n] == -1 && prev_[n] == -1) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> </div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <span class="comment">// TODO(user): both this and the loop on must_be_in_cycle_ might take some</span></div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> <span class="comment">// time on large graph. Optimize if this become an issue.</span></div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> in_current_path_.assign(num_nodes_, <span class="keyword">false</span>);</div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> </div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <span class="comment">// Find the start and end of the path containing node n. If this is a</span></div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <span class="comment">// circuit, we will have start_node == end_node.</span></div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> <span class="keywordtype">int</span> start_node = n;</div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> <span class="keywordtype">int</span> end_node = n;</div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> in_current_path_[n] = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> processed_[n] = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> <span class="keywordflow">while</span> (next_[end_node] != -1) {</div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> end_node = next_[end_node];</div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> in_current_path_[end_node] = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> processed_[end_node] = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> <span class="keywordflow">if</span> (end_node == n) <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> }</div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="keywordflow">while</span> (prev_[start_node] != -1) {</div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> start_node = prev_[start_node];</div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> in_current_path_[start_node] = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> processed_[start_node] = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <span class="keywordflow">if</span> (start_node == n) <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> }</div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> </div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="comment">// TODO(user): we can fail early in more case, like no more possible path</span></div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <span class="comment">// to any of the mandatory node.</span></div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <span class="keywordflow">if</span> (options_.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_circuit_propagator_1_1_options.html#af1123baeaa5412b68d37d8adf43ccb7c">multiple_subcircuit_through_zero</a>) {</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <span class="comment">// Any cycle must contain zero.</span></div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> <span class="keywordflow">if</span> (start_node == end_node && !in_current_path_[0]) {</div>
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> FillReasonForPath(start_node, trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#ab932e215c6dff3fe8f077d4d6a409c0c">MutableConflict</a>());</div>
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<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> }</div>
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> </div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> <span class="comment">// An incomplete path cannot be closed except if one of the end-points</span></div>
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<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <span class="comment">// is zero.</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> (start_node != end_node && start_node != 0 && end_node != 0) {</div>
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<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <span class="keyword">const</span> <span class="keyword">auto</span> it = graph_.find({end_node, start_node});</div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <span class="keywordflow">if</span> (it == graph_.end()) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</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> = it->second;</div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</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>(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>)) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> </div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> std::vector<Literal>* reason = trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#a39e628d11fd17d1fd771210f8c8b1d2d">GetEmptyVectorToStoreReason</a>();</div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> FillReasonForPath(start_node, reason);</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <span class="keywordflow">if</span> (!trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#aa390738a7cb0521a9c1951f3108c0251">EnqueueWithStoredReason</a>(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>.Negated())) {</div>
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<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> <span class="keywordflow">return</span> <span class="keyword">false</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> </div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <span class="comment">// None of the other propagation below are valid in case of multiple</span></div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> <span class="comment">// circuits.</span></div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> }</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="comment">// Check if we miss any node that must be in the circuit. Note that the ones</span></div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> <span class="comment">// for which self_arcs_[i] is kFalseLiteralIndex are first. This is good as</span></div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> <span class="comment">// it will produce shorter reason. Otherwise we prefer the first that was</span></div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> <span class="comment">// assigned in the trail.</span></div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> <span class="keywordtype">bool</span> miss_some_nodes = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> LiteralIndex extra_reason = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a969b5056550d96847f8c35f19fd17f50">kFalseLiteralIndex</a>;</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < rev_must_be_in_cycle_size_; ++i) {</div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> <span class="keyword">const</span> <span class="keywordtype">int</span> node = must_be_in_cycle_[i];</div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> <span class="keywordflow">if</span> (!in_current_path_[node]) {</div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> miss_some_nodes = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> extra_reason = self_arcs_[node].Index();</div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> <span class="keywordflow">break</span>;</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> }</div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> </div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> <span class="keywordflow">if</span> (miss_some_nodes) {</div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> <span class="comment">// A circuit that miss a mandatory node is a conflict.</span></div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> <span class="keywordflow">if</span> (start_node == end_node) {</div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> FillReasonForPath(start_node, trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#ab932e215c6dff3fe8f077d4d6a409c0c">MutableConflict</a>());</div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> <span class="keywordflow">if</span> (extra_reason != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a969b5056550d96847f8c35f19fd17f50">kFalseLiteralIndex</a>) {</div>
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<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#ab932e215c6dff3fe8f077d4d6a409c0c">MutableConflict</a>()->push_back(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(extra_reason));</div>
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<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> }</div>
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<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> }</div>
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<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> </div>
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<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> <span class="comment">// We have an unclosed path. Propagate the fact that it cannot</span></div>
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<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> <span class="comment">// be closed into a cycle, i.e. not(end_node -> start_node).</span></div>
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<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> <span class="keywordflow">if</span> (start_node != end_node) {</div>
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<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> <span class="keyword">const</span> <span class="keyword">auto</span> it = graph_.find({end_node, start_node});</div>
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<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> <span class="keywordflow">if</span> (it == graph_.end()) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</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> = it->second;</div>
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<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</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>(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>)) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> </div>
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<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> std::vector<Literal>* reason = trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#a39e628d11fd17d1fd771210f8c8b1d2d">GetEmptyVectorToStoreReason</a>();</div>
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<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span> FillReasonForPath(start_node, reason);</div>
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<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> <span class="keywordflow">if</span> (extra_reason != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a969b5056550d96847f8c35f19fd17f50">kFalseLiteralIndex</a>) {</div>
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<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> reason->push_back(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(extra_reason));</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="keyword">const</span> <span class="keywordtype">bool</span> ok = trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#aa390738a7cb0521a9c1951f3108c0251">EnqueueWithStoredReason</a>(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>.Negated());</div>
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<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> <span class="keywordflow">if</span> (!ok) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> }</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> </div>
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<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> <span class="comment">// If we have a cycle, we can propagate all the other nodes to point to</span></div>
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<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> <span class="comment">// themselves. Otherwise there is nothing else to do.</span></div>
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<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> <span class="keywordflow">if</span> (start_node != end_node) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> BooleanVariable variable_with_same_reason = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#add67896a84f6372a648154c5770a0ae0">kNoBooleanVariable</a>;</div>
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<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> node = 0; node < num_nodes_; ++node) {</div>
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<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> <span class="keywordflow">if</span> (in_current_path_[node]) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</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>(self_arcs_[node])) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> </div>
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<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> <span class="comment">// This shouldn't happen because ExactlyOnePerRowAndPerColumn() should</span></div>
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<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> <span class="comment">// have executed first and propagated self_arcs_[node] to false.</span></div>
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<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> <a class="code hl_define" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(next_[node], -1);</div>
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<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> </div>
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<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> <span class="comment">// We should have detected that above (miss_some_nodes == true). But we</span></div>
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<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> <span class="comment">// still need this for corner cases where the same literal is used for</span></div>
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<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> <span class="comment">// many arcs, and we just propagated it here.</span></div>
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<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</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>(self_arcs_[node])) {</div>
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<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> FillReasonForPath(start_node, trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#ab932e215c6dff3fe8f077d4d6a409c0c">MutableConflict</a>());</div>
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<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#ab932e215c6dff3fe8f077d4d6a409c0c">MutableConflict</a>()->push_back(self_arcs_[node]);</div>
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<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> }</div>
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<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> </div>
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<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> <span class="comment">// Propagate.</span></div>
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<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</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>(self_arcs_[node]);</div>
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<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> <span class="keywordflow">if</span> (variable_with_same_reason == <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#add67896a84f6372a648154c5770a0ae0">kNoBooleanVariable</a>) {</div>
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<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> variable_with_same_reason = <a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>.Variable();</div>
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<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> FillReasonForPath(start_node, trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#a39e628d11fd17d1fd771210f8c8b1d2d">GetEmptyVectorToStoreReason</a>());</div>
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<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> ok = trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#aa390738a7cb0521a9c1951f3108c0251">EnqueueWithStoredReason</a>(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>);</div>
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<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> <span class="keywordflow">if</span> (!ok) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#a4086a48ef9859b6ed0a5e9dd08d622c7">EnqueueWithSameReasonAs</a>(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>, variable_with_same_reason);</div>
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<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> }</div>
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<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> }</div>
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<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> }</div>
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<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span>}</div>
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<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> </div>
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<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#a23247af46794e2b13e7ff3018a48800d"> 344</a></span><a class="code hl_function" href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#a23247af46794e2b13e7ff3018a48800d">CircuitCoveringPropagator::CircuitCoveringPropagator</a>(</div>
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<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> std::vector<std::vector<Literal>> graph,</div>
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<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> <span class="keyword">const</span> std::vector<int>& distinguished_nodes, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)</div>
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<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> : graph_(<a class="code hl_namespace" href="namespacestd.html">std</a>::move(graph)),</div>
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<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> num_nodes_(graph_.size()),</div>
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<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span> trail_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_trail.html">Trail</a>>()) {</div>
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<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> node_is_distinguished_.resize(num_nodes_, <span class="keyword">false</span>);</div>
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<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> node : distinguished_nodes) {</div>
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<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> node_is_distinguished_[node] = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> }</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> </div>
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<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#a6ee8ed57254aec3ae99d399bae5b3736"> 356</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#a6ee8ed57254aec3ae99d399bae5b3736">CircuitCoveringPropagator::RegisterWith</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html">GenericLiteralWatcher</a>* watcher) {</div>
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<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> <span class="keyword">const</span> <span class="keywordtype">int</span> watcher_id = watcher-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html#adeee4ac52bfe0f1b48ee8958bb88b4e3">Register</a>(<span class="keyword">this</span>);</div>
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<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> </div>
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<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> <span class="comment">// Fill fixed_arcs_ with arcs that are initially fixed to true,</span></div>
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<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> <span class="comment">// assign arcs to watch indices.</span></div>
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<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> node1 = 0; node1 < num_nodes_; node1++) {</div>
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<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> node2 = 0; node2 < num_nodes_; node2++) {</div>
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<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a> l = graph_[node1][node2];</div>
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<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> <span class="keywordflow">if</span> (trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#a4793952607a98dfddfbcc17abfabbb4b">Assignment</a>().<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#acfd1646011e643f58fd7dc66d9cc90a5">LiteralIsFalse</a>(l)) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00365" name="l00365"></a><span class="lineno"> 365</span> <span class="keywordflow">if</span> (trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#a4793952607a98dfddfbcc17abfabbb4b">Assignment</a>().<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#a5300129913f51dcb0b1c531e3248490e">LiteralIsTrue</a>(l)) {</div>
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<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span> fixed_arcs_.emplace_back(node1, node2);</div>
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<div class="line"><a id="l00367" name="l00367"></a><span class="lineno"> 367</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span> watcher-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html#a8f6dd74a841475ccb390614d2b212170">WatchLiteral</a>(l, watcher_id, watch_index_to_arc_.size());</div>
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<div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> watch_index_to_arc_.emplace_back(node1, node2);</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> }</div>
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<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> watcher-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html#a8b8fcdc97976ca46ea04a03fd874d9b3">RegisterReversibleClass</a>(watcher_id, <span class="keyword">this</span>);</div>
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<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span>}</div>
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<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> </div>
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<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#a176d2c659864433ccd869b5fba8d57af"> 376</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#a176d2c659864433ccd869b5fba8d57af">CircuitCoveringPropagator::SetLevel</a>(<span class="keywordtype">int</span> level) {</div>
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<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> <span class="keywordflow">if</span> (level == level_ends_.size()) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> <span class="keywordflow">if</span> (level > level_ends_.size()) {</div>
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<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> <span class="keywordflow">while</span> (level > level_ends_.size()) {</div>
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<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> level_ends_.push_back(fixed_arcs_.size());</div>
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<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> }</div>
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<div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span> <span class="comment">// Backtrack.</span></div>
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<div class="line"><a id="l00384" name="l00384"></a><span class="lineno"> 384</span> fixed_arcs_.resize(level_ends_[level]);</div>
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<div class="line"><a id="l00385" name="l00385"></a><span class="lineno"> 385</span> level_ends_.resize(level);</div>
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<div class="line"><a id="l00386" name="l00386"></a><span class="lineno"> 386</span> }</div>
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<div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span>}</div>
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<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"> 388</span> </div>
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<div class="line"><a id="l00389" name="l00389"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#a45321337f970685d9847db005c4b3de1"> 389</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#a45321337f970685d9847db005c4b3de1">CircuitCoveringPropagator::IncrementalPropagate</a>(</div>
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<div class="line"><a id="l00390" name="l00390"></a><span class="lineno"> 390</span> <span class="keyword">const</span> std::vector<int>& watch_indices) {</div>
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<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"> 391</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> w : watch_indices) {</div>
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<div class="line"><a id="l00392" name="l00392"></a><span class="lineno"> 392</span> <span class="keyword">const</span> <span class="keyword">auto</span>& <a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a> = watch_index_to_arc_[w];</div>
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<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span> fixed_arcs_.push_back(<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>);</div>
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<div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span> }</div>
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<div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span> <span class="keywordflow">return</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#ac1fe9b1f2b978c4283e42f12e586eb1e">Propagate</a>();</div>
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<div class="line"><a id="l00396" name="l00396"></a><span class="lineno"> 396</span>}</div>
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<div class="line"><a id="l00397" name="l00397"></a><span class="lineno"> 397</span> </div>
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<div class="line"><a id="l00398" name="l00398"></a><span class="lineno"> 398</span><span class="keywordtype">void</span> CircuitCoveringPropagator::FillFixedPathInReason(</div>
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<div class="line"><a id="l00399" name="l00399"></a><span class="lineno"> 399</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a>, <span class="keywordtype">int</span> <a class="code hl_variable" href="sparse__submatrix_8cc.html#a4d53eac2ef2732c28fa9fb663e0c19a7">end</a>, std::vector<Literal>* reason) {</div>
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<div class="line"><a id="l00400" name="l00400"></a><span class="lineno"> 400</span> reason->clear();</div>
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<div class="line"><a id="l00401" name="l00401"></a><span class="lineno"> 401</span> <span class="keywordtype">int</span> current = <a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a>;</div>
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<div class="line"><a id="l00402" name="l00402"></a><span class="lineno"> 402</span> <span class="keywordflow">do</span> {</div>
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<div class="line"><a id="l00403" name="l00403"></a><span class="lineno"> 403</span> <a class="code hl_define" href="base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0">DCHECK_NE</a>(next_[current], -1);</div>
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<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#a4793952607a98dfddfbcc17abfabbb4b">Assignment</a>().<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#a5300129913f51dcb0b1c531e3248490e">LiteralIsTrue</a>(graph_[current][next_[current]]));</div>
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<div class="line"><a id="l00405" name="l00405"></a><span class="lineno"> 405</span> reason->push_back(graph_[current][next_[current]].Negated());</div>
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<div class="line"><a id="l00406" name="l00406"></a><span class="lineno"> 406</span> current = next_[current];</div>
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<div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span> } <span class="keywordflow">while</span> (current != <a class="code hl_variable" href="sparse__submatrix_8cc.html#a4d53eac2ef2732c28fa9fb663e0c19a7">end</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="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#ac1fe9b1f2b978c4283e42f12e586eb1e"> 410</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#ac1fe9b1f2b978c4283e42f12e586eb1e">CircuitCoveringPropagator::Propagate</a>() {</div>
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<div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> <span class="comment">// Gather next_ and prev_ from fixed arcs.</span></div>
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<div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> next_.assign(num_nodes_, -1);</div>
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<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</span> prev_.assign(num_nodes_, -1);</div>
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<div class="line"><a id="l00414" name="l00414"></a><span class="lineno"> 414</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& <a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a> : fixed_arcs_) {</div>
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<div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span> <span class="comment">// Two arcs go out of arc.first, forbidden.</span></div>
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<div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span> <span class="keywordflow">if</span> (next_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.first] != -1) {</div>
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<div class="line"><a id="l00417" name="l00417"></a><span class="lineno"> 417</span> *trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#ab932e215c6dff3fe8f077d4d6a409c0c">MutableConflict</a>() = {</div>
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<div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> graph_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.first][next_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.first]].Negated(),</div>
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<div class="line"><a id="l00419" name="l00419"></a><span class="lineno"> 419</span> graph_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.first][<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.second].Negated()};</div>
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<div class="line"><a id="l00420" name="l00420"></a><span class="lineno"> 420</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00421" name="l00421"></a><span class="lineno"> 421</span> }</div>
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<div class="line"><a id="l00422" name="l00422"></a><span class="lineno"> 422</span> next_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.first] = <a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.second;</div>
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<div class="line"><a id="l00423" name="l00423"></a><span class="lineno"> 423</span> <span class="comment">// Two arcs come into arc.second, forbidden.</span></div>
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<div class="line"><a id="l00424" name="l00424"></a><span class="lineno"> 424</span> <span class="keywordflow">if</span> (prev_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.second] != -1) {</div>
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<div class="line"><a id="l00425" name="l00425"></a><span class="lineno"> 425</span> *trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#ab932e215c6dff3fe8f077d4d6a409c0c">MutableConflict</a>() = {</div>
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<div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span> graph_[prev_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.second]][<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.second].Negated(),</div>
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<div class="line"><a id="l00427" name="l00427"></a><span class="lineno"> 427</span> graph_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.first][<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.second].Negated()};</div>
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<div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00429" name="l00429"></a><span class="lineno"> 429</span> }</div>
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<div class="line"><a id="l00430" name="l00430"></a><span class="lineno"> 430</span> prev_[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.second] = <a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>.first;</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> </div>
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<div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span> <span class="comment">// For every node, find partial path/circuit in which the node is.</span></div>
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<div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</span> <span class="comment">// Use visited_ to visit each path/circuit only once.</span></div>
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<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span> visited_.assign(num_nodes_, <span class="keyword">false</span>);</div>
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<div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> node = 0; node < num_nodes_; node++) {</div>
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<div class="line"><a id="l00437" name="l00437"></a><span class="lineno"> 437</span> <span class="comment">// Skip if already visited, isolated or loop.</span></div>
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<div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span> <span class="keywordflow">if</span> (visited_[node]) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span> <span class="keywordflow">if</span> (prev_[node] == -1 && next_[node] == -1) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> <span class="keywordflow">if</span> (prev_[node] == node) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span> </div>
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<div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span> <span class="comment">// Find start of path/circuit.</span></div>
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<div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a> = node;</div>
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<div class="line"><a id="l00444" name="l00444"></a><span class="lineno"> 444</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> current = prev_[node]; current != -1 && current != node;</div>
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<div class="line"><a id="l00445" name="l00445"></a><span class="lineno"> 445</span> current = prev_[current]) {</div>
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<div class="line"><a id="l00446" name="l00446"></a><span class="lineno"> 446</span> <a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a> = current;</div>
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<div class="line"><a id="l00447" name="l00447"></a><span class="lineno"> 447</span> }</div>
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<div class="line"><a id="l00448" name="l00448"></a><span class="lineno"> 448</span> </div>
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<div class="line"><a id="l00449" name="l00449"></a><span class="lineno"> 449</span> <span class="comment">// Find distinguished node of path. Fail if there are several,</span></div>
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<div class="line"><a id="l00450" name="l00450"></a><span class="lineno"> 450</span> <span class="comment">// fail if this is a non loop circuit and there are none.</span></div>
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<div class="line"><a id="l00451" name="l00451"></a><span class="lineno"> 451</span> <span class="keywordtype">int</span> distinguished = node_is_distinguished_[<a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a>] ? <a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a> : -1;</div>
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<div class="line"><a id="l00452" name="l00452"></a><span class="lineno"> 452</span> <span class="keywordtype">int</span> current = next_[<a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a>];</div>
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<div class="line"><a id="l00453" name="l00453"></a><span class="lineno"> 453</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="sparse__submatrix_8cc.html#a4d53eac2ef2732c28fa9fb663e0c19a7">end</a> = <a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a>;</div>
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<div class="line"><a id="l00454" name="l00454"></a><span class="lineno"> 454</span> visited_[<a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a>] = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00455" name="l00455"></a><span class="lineno"> 455</span> <span class="keywordflow">while</span> (current != -1 && current != <a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a>) {</div>
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<div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span> <span class="keywordflow">if</span> (node_is_distinguished_[current]) {</div>
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<div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span> <span class="keywordflow">if</span> (distinguished != -1) {</div>
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<div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span> FillFixedPathInReason(distinguished, current,</div>
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<div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</span> trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#ab932e215c6dff3fe8f077d4d6a409c0c">MutableConflict</a>());</div>
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<div class="line"><a id="l00460" name="l00460"></a><span class="lineno"> 460</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span> }</div>
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<div class="line"><a id="l00462" name="l00462"></a><span class="lineno"> 462</span> distinguished = current;</div>
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<div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span> }</div>
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<div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</span> visited_[current] = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00465" name="l00465"></a><span class="lineno"> 465</span> <a class="code hl_variable" href="sparse__submatrix_8cc.html#a4d53eac2ef2732c28fa9fb663e0c19a7">end</a> = current;</div>
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<div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> current = next_[current];</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">// Circuit with no distinguished nodes, forbidden.</span></div>
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<div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a> == current && distinguished == -1) {</div>
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<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span> FillFixedPathInReason(<a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a>, <a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a>, trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#ab932e215c6dff3fe8f077d4d6a409c0c">MutableConflict</a>());</div>
|
|
<div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00473" name="l00473"></a><span class="lineno"> 473</span> }</div>
|
|
<div class="line"><a id="l00474" name="l00474"></a><span class="lineno"> 474</span> </div>
|
|
<div class="line"><a id="l00475" name="l00475"></a><span class="lineno"> 475</span> <span class="comment">// Path with no distinguished node: forbid to close it.</span></div>
|
|
<div class="line"><a id="l00476" name="l00476"></a><span class="lineno"> 476</span> <span class="keywordflow">if</span> (current == -1 && distinguished == -1 &&</div>
|
|
<div class="line"><a id="l00477" name="l00477"></a><span class="lineno"> 477</span> !trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#a4793952607a98dfddfbcc17abfabbb4b">Assignment</a>().<a class="code hl_function" href="classoperations__research_1_1sat_1_1_variables_assignment.html#acfd1646011e643f58fd7dc66d9cc90a5">LiteralIsFalse</a>(graph_[<a class="code hl_variable" href="sparse__submatrix_8cc.html#a4d53eac2ef2732c28fa9fb663e0c19a7">end</a>][<a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a>])) {</div>
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<div class="line"><a id="l00478" name="l00478"></a><span class="lineno"> 478</span> <span class="keyword">auto</span>* reason = trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#a39e628d11fd17d1fd771210f8c8b1d2d">GetEmptyVectorToStoreReason</a>();</div>
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|
<div class="line"><a id="l00479" name="l00479"></a><span class="lineno"> 479</span> FillFixedPathInReason(<a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a>, <a class="code hl_variable" href="sparse__submatrix_8cc.html#a4d53eac2ef2732c28fa9fb663e0c19a7">end</a>, reason);</div>
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<div class="line"><a id="l00480" name="l00480"></a><span class="lineno"> 480</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> ok =</div>
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<div class="line"><a id="l00481" name="l00481"></a><span class="lineno"> 481</span> trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#aa390738a7cb0521a9c1951f3108c0251">EnqueueWithStoredReason</a>(graph_[<a class="code hl_variable" href="sparse__submatrix_8cc.html#a4d53eac2ef2732c28fa9fb663e0c19a7">end</a>][<a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a>].Negated());</div>
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<div class="line"><a id="l00482" name="l00482"></a><span class="lineno"> 482</span> <span class="keywordflow">if</span> (!ok) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00483" name="l00483"></a><span class="lineno"> 483</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">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00486" name="l00486"></a><span class="lineno"> 486</span>}</div>
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<div class="line"><a id="l00487" name="l00487"></a><span class="lineno"> 487</span> </div>
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<div class="line"><a id="l00488" name="l00488"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a56eb4b0de637f0345f0062c3a32489fa"> 488</a></span>std::function<void(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>*)> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a56eb4b0de637f0345f0062c3a32489fa">ExactlyOnePerRowAndPerColumn</a>(</div>
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<div class="line"><a id="l00489" name="l00489"></a><span class="lineno"> 489</span> <span class="keyword">const</span> std::vector<std::vector<Literal>>& graph) {</div>
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<div class="line"><a id="l00490" name="l00490"></a><span class="lineno"> 490</span> <span class="keywordflow">return</span> [=](<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00491" name="l00491"></a><span class="lineno"> 491</span> <span class="keyword">const</span> <span class="keywordtype">int</span> n = graph.size();</div>
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<div class="line"><a id="l00492" name="l00492"></a><span class="lineno"> 492</span> std::vector<Literal> exactly_one_constraint;</div>
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<div class="line"><a id="l00493" name="l00493"></a><span class="lineno"> 493</span> exactly_one_constraint.reserve(n);</div>
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<div class="line"><a id="l00494" name="l00494"></a><span class="lineno"> 494</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">bool</span> transpose : {<span class="keyword">false</span>, <span class="keyword">true</span>}) {</div>
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<div class="line"><a id="l00495" name="l00495"></a><span class="lineno"> 495</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="l00496" name="l00496"></a><span class="lineno"> 496</span> exactly_one_constraint.clear();</div>
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<div class="line"><a id="l00497" name="l00497"></a><span class="lineno"> 497</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j < n; ++j) {</div>
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<div class="line"><a id="l00498" name="l00498"></a><span class="lineno"> 498</span> exactly_one_constraint.push_back(transpose ? graph[j][i]</div>
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<div class="line"><a id="l00499" name="l00499"></a><span class="lineno"> 499</span> : graph[i][j]);</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"> 501</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Add(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#accfda9e32067da0a88da8e325cf39c7c">ExactlyOneConstraint</a>(exactly_one_constraint));</div>
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<div class="line"><a id="l00502" name="l00502"></a><span class="lineno"> 502</span> }</div>
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<div class="line"><a id="l00503" name="l00503"></a><span class="lineno"> 503</span> }</div>
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<div class="line"><a id="l00504" name="l00504"></a><span class="lineno"> 504</span> };</div>
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<div class="line"><a id="l00505" name="l00505"></a><span class="lineno"> 505</span>}</div>
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<div class="line"><a id="l00506" name="l00506"></a><span class="lineno"> 506</span> </div>
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<div class="line"><a id="l00507" name="l00507"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a3c25e2ace66c05a1078d9d8128ca33c3"> 507</a></span>std::function<void(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>*)> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a3c25e2ace66c05a1078d9d8128ca33c3">SubcircuitConstraint</a>(</div>
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<div class="line"><a id="l00508" name="l00508"></a><span class="lineno"> 508</span> <span class="keywordtype">int</span> num_nodes, <span class="keyword">const</span> std::vector<int>& tails, <span class="keyword">const</span> std::vector<int>& heads,</div>
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<div class="line"><a id="l00509" name="l00509"></a><span class="lineno"> 509</span> <span class="keyword">const</span> std::vector<Literal>& literals,</div>
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<div class="line"><a id="l00510" name="l00510"></a><span class="lineno"> 510</span> <span class="keywordtype">bool</span> multiple_subcircuit_through_zero) {</div>
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<div class="line"><a id="l00511" name="l00511"></a><span class="lineno"> 511</span> <span class="keywordflow">return</span> [=](<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00512" name="l00512"></a><span class="lineno"> 512</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_arcs = tails.size();</div>
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<div class="line"><a id="l00513" name="l00513"></a><span class="lineno"> 513</span> <a class="code hl_define" href="base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6">CHECK_GT</a>(num_arcs, 0);</div>
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<div class="line"><a id="l00514" name="l00514"></a><span class="lineno"> 514</span> <a class="code hl_define" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(heads.size(), num_arcs);</div>
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<div class="line"><a id="l00515" name="l00515"></a><span class="lineno"> 515</span> <a class="code hl_define" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(literals.size(), num_arcs);</div>
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<div class="line"><a id="l00516" name="l00516"></a><span class="lineno"> 516</span> </div>
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<div class="line"><a id="l00517" name="l00517"></a><span class="lineno"> 517</span> <span class="comment">// If a node has no outgoing or no incoming arc, the model will be unsat</span></div>
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<div class="line"><a id="l00518" name="l00518"></a><span class="lineno"> 518</span> <span class="comment">// as soon as we add the corresponding ExactlyOneConstraint().</span></div>
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<div class="line"><a id="l00519" name="l00519"></a><span class="lineno"> 519</span> <span class="keyword">auto</span> sat_solver = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>>();</div>
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<div class="line"><a id="l00520" name="l00520"></a><span class="lineno"> 520</span> </div>
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<div class="line"><a id="l00521" name="l00521"></a><span class="lineno"> 521</span> std::vector<std::vector<Literal>> exactly_one_incoming(num_nodes);</div>
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<div class="line"><a id="l00522" name="l00522"></a><span class="lineno"> 522</span> std::vector<std::vector<Literal>> exactly_one_outgoing(num_nodes);</div>
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<div class="line"><a id="l00523" name="l00523"></a><span class="lineno"> 523</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> <a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a> = 0; <a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a> < num_arcs; <a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>++) {</div>
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<div class="line"><a id="l00524" name="l00524"></a><span class="lineno"> 524</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a> = tails[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>];</div>
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<div class="line"><a id="l00525" name="l00525"></a><span class="lineno"> 525</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="routing__flow_8cc.html#afca32f65388659a4b0956496169488b4">head</a> = heads[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>];</div>
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<div class="line"><a id="l00526" name="l00526"></a><span class="lineno"> 526</span> exactly_one_outgoing[<a class="code hl_variable" href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a>].push_back(literals[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>]);</div>
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<div class="line"><a id="l00527" name="l00527"></a><span class="lineno"> 527</span> exactly_one_incoming[<a class="code hl_variable" href="routing__flow_8cc.html#afca32f65388659a4b0956496169488b4">head</a>].push_back(literals[<a class="code hl_variable" href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a>]);</div>
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<div class="line"><a id="l00528" name="l00528"></a><span class="lineno"> 528</span> }</div>
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<div class="line"><a id="l00529" name="l00529"></a><span class="lineno"> 529</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < exactly_one_incoming.size(); ++i) {</div>
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<div class="line"><a id="l00530" name="l00530"></a><span class="lineno"> 530</span> <span class="keywordflow">if</span> (i == 0 && multiple_subcircuit_through_zero) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00531" name="l00531"></a><span class="lineno"> 531</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Add(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#accfda9e32067da0a88da8e325cf39c7c">ExactlyOneConstraint</a>(exactly_one_incoming[i]));</div>
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<div class="line"><a id="l00532" name="l00532"></a><span class="lineno"> 532</span> <span class="keywordflow">if</span> (sat_solver->IsModelUnsat()) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00533" name="l00533"></a><span class="lineno"> 533</span> }</div>
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<div class="line"><a id="l00534" name="l00534"></a><span class="lineno"> 534</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < exactly_one_outgoing.size(); ++i) {</div>
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<div class="line"><a id="l00535" name="l00535"></a><span class="lineno"> 535</span> <span class="keywordflow">if</span> (i == 0 && multiple_subcircuit_through_zero) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00536" name="l00536"></a><span class="lineno"> 536</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Add(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#accfda9e32067da0a88da8e325cf39c7c">ExactlyOneConstraint</a>(exactly_one_outgoing[i]));</div>
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<div class="line"><a id="l00537" name="l00537"></a><span class="lineno"> 537</span> <span class="keywordflow">if</span> (sat_solver->IsModelUnsat()) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00538" name="l00538"></a><span class="lineno"> 538</span> }</div>
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<div class="line"><a id="l00539" name="l00539"></a><span class="lineno"> 539</span> </div>
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<div class="line"><a id="l00540" name="l00540"></a><span class="lineno"> 540</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_circuit_propagator_1_1_options.html">CircuitPropagator::Options</a> options;</div>
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<div class="line"><a id="l00541" name="l00541"></a><span class="lineno"> 541</span> options.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_circuit_propagator_1_1_options.html#af1123baeaa5412b68d37d8adf43ccb7c">multiple_subcircuit_through_zero</a> = multiple_subcircuit_through_zero;</div>
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<div class="line"><a id="l00542" name="l00542"></a><span class="lineno"> 542</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_circuit_propagator.html">CircuitPropagator</a>* constraint = <span class="keyword">new</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_circuit_propagator.html">CircuitPropagator</a>(</div>
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<div class="line"><a id="l00543" name="l00543"></a><span class="lineno"> 543</span> num_nodes, tails, heads, literals, options, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00544" name="l00544"></a><span class="lineno"> 544</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_circuit_propagator.html#a6ee8ed57254aec3ae99d399bae5b3736">RegisterWith</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html">GenericLiteralWatcher</a>>());</div>
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<div class="line"><a id="l00545" name="l00545"></a><span class="lineno"> 545</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->TakeOwnership(constraint);</div>
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<div class="line"><a id="l00546" name="l00546"></a><span class="lineno"> 546</span> };</div>
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<div class="line"><a id="l00547" name="l00547"></a><span class="lineno"> 547</span>}</div>
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<div class="line"><a id="l00548" name="l00548"></a><span class="lineno"> 548</span> </div>
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<div class="line"><a id="l00549" name="l00549"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a438f7ec8890517aa946e815414b6c10e"> 549</a></span>std::function<void(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>*)> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a438f7ec8890517aa946e815414b6c10e">CircuitCovering</a>(</div>
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<div class="line"><a id="l00550" name="l00550"></a><span class="lineno"> 550</span> <span class="keyword">const</span> std::vector<std::vector<Literal>>& graph,</div>
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<div class="line"><a id="l00551" name="l00551"></a><span class="lineno"> 551</span> <span class="keyword">const</span> std::vector<int>& distinguished_nodes) {</div>
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<div class="line"><a id="l00552" name="l00552"></a><span class="lineno"> 552</span> <span class="keywordflow">return</span> [=](<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00553" name="l00553"></a><span class="lineno"> 553</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html">CircuitCoveringPropagator</a>* constraint =</div>
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<div class="line"><a id="l00554" name="l00554"></a><span class="lineno"> 554</span> <span class="keyword">new</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html">CircuitCoveringPropagator</a>(graph, distinguished_nodes, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00555" name="l00555"></a><span class="lineno"> 555</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#a6ee8ed57254aec3ae99d399bae5b3736">RegisterWith</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html">GenericLiteralWatcher</a>>());</div>
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<div class="line"><a id="l00556" name="l00556"></a><span class="lineno"> 556</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->TakeOwnership(constraint);</div>
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<div class="line"><a id="l00557" name="l00557"></a><span class="lineno"> 557</span> };</div>
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<div class="line"><a id="l00558" name="l00558"></a><span class="lineno"> 558</span>}</div>
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<div class="line"><a id="l00559" name="l00559"></a><span class="lineno"> 559</span> </div>
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<div class="line"><a id="l00560" name="l00560"></a><span class="lineno"> 560</span>} <span class="comment">// namespace sat</span></div>
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<div class="line"><a id="l00561" name="l00561"></a><span class="lineno"> 561</span>} <span class="comment">// namespace operations_research</span></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_a46e69120fbd3b36e6960e096d23b66f0"><div class="ttname"><a href="base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0">DCHECK_NE</a></div><div class="ttdeci">#define DCHECK_NE(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00892">base/logging.h:892</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_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="abase_2logging_8h_html_ae17f8119c108cf3070bad3449c7e0006"><div class="ttname"><a href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a></div><div class="ttdeci">#define DCHECK(condition)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00890">base/logging.h:890</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_afcaa7cadd41741bb855c2ada1d2ef927"><div class="ttname"><a href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a></div><div class="ttdeci">#define VLOG(verboselevel)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00984">base/logging.h:984</a></div></div>
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<div class="ttc" id="acircuit_8h_html"><div class="ttname"><a href="circuit_8h.html">circuit.h</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_assignment_html"><div class="ttname"><a href="classoperations__research_1_1_assignment.html">operations_research::Assignment</a></div><div class="ttdoc">An Assignment is a variable -> domains mapping, used to report solutions to the user.</div><div class="ttdef"><b>Definition:</b> <a href="constraint__solver_8h_source.html#l05081">constraint_solver.h:5081</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_circuit_covering_propagator_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html">operations_research::sat::CircuitCoveringPropagator</a></div><div class="ttdef"><b>Definition:</b> <a href="circuit_8h_source.html#l00133">circuit.h:133</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_circuit_covering_propagator_html_a176d2c659864433ccd869b5fba8d57af"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#a176d2c659864433ccd869b5fba8d57af">operations_research::sat::CircuitCoveringPropagator::SetLevel</a></div><div class="ttdeci">void SetLevel(int level) final</div><div class="ttdef"><b>Definition:</b> <a href="circuit_8cc_source.html#l00376">circuit.cc:376</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_circuit_covering_propagator_html_a23247af46794e2b13e7ff3018a48800d"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#a23247af46794e2b13e7ff3018a48800d">operations_research::sat::CircuitCoveringPropagator::CircuitCoveringPropagator</a></div><div class="ttdeci">CircuitCoveringPropagator(std::vector< std::vector< Literal > > graph, const std::vector< int > &distinguished_nodes, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="circuit_8cc_source.html#l00344">circuit.cc:344</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_circuit_covering_propagator_html_a45321337f970685d9847db005c4b3de1"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#a45321337f970685d9847db005c4b3de1">operations_research::sat::CircuitCoveringPropagator::IncrementalPropagate</a></div><div class="ttdeci">bool IncrementalPropagate(const std::vector< int > &watch_indices) final</div><div class="ttdef"><b>Definition:</b> <a href="circuit_8cc_source.html#l00389">circuit.cc:389</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_circuit_covering_propagator_html_a6ee8ed57254aec3ae99d399bae5b3736"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#a6ee8ed57254aec3ae99d399bae5b3736">operations_research::sat::CircuitCoveringPropagator::RegisterWith</a></div><div class="ttdeci">void RegisterWith(GenericLiteralWatcher *watcher)</div><div class="ttdef"><b>Definition:</b> <a href="circuit_8cc_source.html#l00356">circuit.cc:356</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_circuit_covering_propagator_html_ac1fe9b1f2b978c4283e42f12e586eb1e"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_circuit_covering_propagator.html#ac1fe9b1f2b978c4283e42f12e586eb1e">operations_research::sat::CircuitCoveringPropagator::Propagate</a></div><div class="ttdeci">bool Propagate() final</div><div class="ttdef"><b>Definition:</b> <a href="circuit_8cc_source.html#l00410">circuit.cc:410</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_circuit_propagator_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_circuit_propagator.html">operations_research::sat::CircuitPropagator</a></div><div class="ttdef"><b>Definition:</b> <a href="circuit_8h_source.html#l00046">circuit.h:46</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_circuit_propagator_html_a176d2c659864433ccd869b5fba8d57af"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_circuit_propagator.html#a176d2c659864433ccd869b5fba8d57af">operations_research::sat::CircuitPropagator::SetLevel</a></div><div class="ttdeci">void SetLevel(int level) final</div><div class="ttdef"><b>Definition:</b> <a href="circuit_8cc_source.html#l00116">circuit.cc:116</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_circuit_propagator_html_a45321337f970685d9847db005c4b3de1"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_circuit_propagator.html#a45321337f970685d9847db005c4b3de1">operations_research::sat::CircuitPropagator::IncrementalPropagate</a></div><div class="ttdeci">bool IncrementalPropagate(const std::vector< int > &watch_indices) final</div><div class="ttdef"><b>Definition:</b> <a href="circuit_8cc_source.html#l00161">circuit.cc:161</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_circuit_propagator_html_a6ee8ed57254aec3ae99d399bae5b3736"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_circuit_propagator.html#a6ee8ed57254aec3ae99d399bae5b3736">operations_research::sat::CircuitPropagator::RegisterWith</a></div><div class="ttdeci">void RegisterWith(GenericLiteralWatcher *watcher)</div><div class="ttdef"><b>Definition:</b> <a href="circuit_8cc_source.html#l00100">circuit.cc:100</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_circuit_propagator_html_ab724d1b4067da7ec830cb4d1b8284ee7"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_circuit_propagator.html#ab724d1b4067da7ec830cb4d1b8284ee7">operations_research::sat::CircuitPropagator::CircuitPropagator</a></div><div class="ttdeci">CircuitPropagator(int num_nodes, const std::vector< int > &tails, const std::vector< int > &heads, const std::vector< Literal > &literals, Options options, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="circuit_8cc_source.html#l00033">circuit.cc:33</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_circuit_propagator_html_ac1fe9b1f2b978c4283e42f12e586eb1e"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_circuit_propagator.html#ac1fe9b1f2b978c4283e42f12e586eb1e">operations_research::sat::CircuitPropagator::Propagate</a></div><div class="ttdeci">bool Propagate() final</div><div class="ttdef"><b>Definition:</b> <a href="circuit_8cc_source.html#l00205">circuit.cc:205</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_generic_literal_watcher_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html">operations_research::sat::GenericLiteralWatcher</a></div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01228">integer.h:1228</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_generic_literal_watcher_html_a8963fd33e7bd70e749b2a37060ef1274"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html#a8963fd33e7bd70e749b2a37060ef1274">operations_research::sat::GenericLiteralWatcher::RegisterReversibleInt</a></div><div class="ttdeci">void RegisterReversibleInt(int id, int *rev)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cc_source.html#l02072">integer.cc:2072</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_generic_literal_watcher_html_a8b8fcdc97976ca46ea04a03fd874d9b3"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html#a8b8fcdc97976ca46ea04a03fd874d9b3">operations_research::sat::GenericLiteralWatcher::RegisterReversibleClass</a></div><div class="ttdeci">void RegisterReversibleClass(int id, ReversibleInterface *rev)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cc_source.html#l02067">integer.cc:2067</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_generic_literal_watcher_html_a8f6dd74a841475ccb390614d2b212170"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html#a8f6dd74a841475ccb390614d2b212170">operations_research::sat::GenericLiteralWatcher::WatchLiteral</a></div><div class="ttdeci">void WatchLiteral(Literal l, int id, int watch_index=-1)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01561">integer.h:1561</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_generic_literal_watcher_html_adeee4ac52bfe0f1b48ee8958bb88b4e3"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html#adeee4ac52bfe0f1b48ee8958bb88b4e3">operations_research::sat::GenericLiteralWatcher::Register</a></div><div class="ttdeci">int Register(PropagatorInterface *propagator)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cc_source.html#l02028">integer.cc:2028</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_generic_literal_watcher_html_aef66ce77e5b87afecf1c5696f44d4d1c"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html#aef66ce77e5b87afecf1c5696f44d4d1c">operations_research::sat::GenericLiteralWatcher::NotifyThatPropagatorMayNotReachFixedPointInOnePass</a></div><div class="ttdeci">void NotifyThatPropagatorMayNotReachFixedPointInOnePass(int id)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cc_source.html#l02058">integer.cc:2058</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_encoder_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_encoder.html">operations_research::sat::IntegerEncoder</a></div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00362">integer.h:362</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_encoder_html_a299520ab923d28b4ee3051fe476d69fe"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_encoder.html#a299520ab923d28b4ee3051fe476d69fe">operations_research::sat::IntegerEncoder::GetFalseLiteral</a></div><div class="ttdeci">Literal GetFalseLiteral()</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00533">integer.h:533</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_literal_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_literal.html">operations_research::sat::Literal</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00067">sat_base.h:67</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_literal_html_a4a11c7c4d7706c09de5e18707c3b5c62"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_literal.html#a4a11c7c4d7706c09de5e18707c3b5c62">operations_research::sat::Literal::Index</a></div><div class="ttdeci">LiteralIndex Index() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00087">sat_base.h:87</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_literal_html_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_model_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_model.html">operations_research::sat::Model</a></div><div class="ttdoc">Class that owns everything related to a particular optimization model.</div><div class="ttdef"><b>Definition:</b> <a href="sat_2model_8h_source.html#l00042">sat/model.h:42</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_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_trail_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_trail.html">operations_research::sat::Trail</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00236">sat_base.h:236</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_trail_html_a39e628d11fd17d1fd771210f8c8b1d2d"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_trail.html#a39e628d11fd17d1fd771210f8c8b1d2d">operations_research::sat::Trail::GetEmptyVectorToStoreReason</a></div><div class="ttdeci">std::vector< Literal > * GetEmptyVectorToStoreReason(int trail_index) const</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00323">sat_base.h:323</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_trail_html_a4086a48ef9859b6ed0a5e9dd08d622c7"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_trail.html#a4086a48ef9859b6ed0a5e9dd08d622c7">operations_research::sat::Trail::EnqueueWithSameReasonAs</a></div><div class="ttdeci">void EnqueueWithSameReasonAs(Literal true_literal, BooleanVariable reference_var)</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00275">sat_base.h:275</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_trail_html_a4793952607a98dfddfbcc17abfabbb4b"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_trail.html#a4793952607a98dfddfbcc17abfabbb4b">operations_research::sat::Trail::Assignment</a></div><div class="ttdeci">const VariablesAssignment & Assignment() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00383">sat_base.h:383</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_trail_html_aa390738a7cb0521a9c1951f3108c0251"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_trail.html#aa390738a7cb0521a9c1951f3108c0251">operations_research::sat::Trail::EnqueueWithStoredReason</a></div><div class="ttdeci">ABSL_MUST_USE_RESULT bool EnqueueWithStoredReason(Literal true_literal)</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00287">sat_base.h:287</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_trail_html_ab932e215c6dff3fe8f077d4d6a409c0c"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_trail.html#ab932e215c6dff3fe8f077d4d6a409c0c">operations_research::sat::Trail::MutableConflict</a></div><div class="ttdeci">std::vector< Literal > * MutableConflict()</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00364">sat_base.h:364</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="agurobi__interface_8cc_html_a0728f23c9a47655d38e0bf1a2f200bcf"><div class="ttname"><a href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a></div><div class="ttdeci">GRBmodel * model</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__interface_8cc_source.html#l00274">gurobi_interface.cc:274</a></div></div>
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<div class="ttc" id="ainteger_8h_html"><div class="ttname"><a href="integer_8h.html">integer.h</a></div></div>
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<div class="ttc" id="alocal__search_8cc_html_a30b5726116ac85ea64777e5d6e333894"><div class="ttname"><a href="local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894">arc</a></div><div class="ttdeci">int arc</div><div class="ttdef"><b>Definition:</b> <a href="local__search_8cc_source.html#l02751">local_search.cc:2751</a></div></div>
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<div class="ttc" id="amap__util_8h_html"><div class="ttname"><a href="map__util_8h.html">map_util.h</a></div></div>
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<div class="ttc" id="anamespacegtl_html_a795ebdb62731938c8c31b221f0f074b4"><div class="ttname"><a href="namespacegtl.html#a795ebdb62731938c8c31b221f0f074b4">gtl::FindWithDefault</a></div><div class="ttdeci">const Collection::value_type::second_type & FindWithDefault(const Collection &collection, const typename Collection::value_type::first_type &key, const typename Collection::value_type::second_type &value)</div><div class="ttdef"><b>Definition:</b> <a href="map__util_8h_source.html#l00029">map_util.h:29</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a2dbcb7017d468a17bdb30252af5c6c31"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">operations_research::sat::kNoLiteralIndex</a></div><div class="ttdeci">const LiteralIndex kNoLiteralIndex(-1)</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a3c25e2ace66c05a1078d9d8128ca33c3"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a3c25e2ace66c05a1078d9d8128ca33c3">operations_research::sat::SubcircuitConstraint</a></div><div class="ttdeci">std::function< void(Model *)> SubcircuitConstraint(int num_nodes, const std::vector< int > &tails, const std::vector< int > &heads, const std::vector< Literal > &literals, bool multiple_subcircuit_through_zero)</div><div class="ttdef"><b>Definition:</b> <a href="circuit_8cc_source.html#l00507">circuit.cc:507</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a438f7ec8890517aa946e815414b6c10e"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a438f7ec8890517aa946e815414b6c10e">operations_research::sat::CircuitCovering</a></div><div class="ttdeci">std::function< void(Model *)> CircuitCovering(const std::vector< std::vector< Literal > > &graph, const std::vector< int > &distinguished_nodes)</div><div class="ttdef"><b>Definition:</b> <a href="circuit_8cc_source.html#l00549">circuit.cc:549</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a56eb4b0de637f0345f0062c3a32489fa"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a56eb4b0de637f0345f0062c3a32489fa">operations_research::sat::ExactlyOnePerRowAndPerColumn</a></div><div class="ttdeci">std::function< void(Model *)> ExactlyOnePerRowAndPerColumn(const std::vector< std::vector< Literal > > &graph)</div><div class="ttdef"><b>Definition:</b> <a href="circuit_8cc_source.html#l00488">circuit.cc:488</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a969b5056550d96847f8c35f19fd17f50"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a969b5056550d96847f8c35f19fd17f50">operations_research::sat::kFalseLiteralIndex</a></div><div class="ttdeci">const LiteralIndex kFalseLiteralIndex(-3)</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_accfda9e32067da0a88da8e325cf39c7c"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#accfda9e32067da0a88da8e325cf39c7c">operations_research::sat::ExactlyOneConstraint</a></div><div class="ttdeci">std::function< void(Model *)> ExactlyOneConstraint(const std::vector< Literal > &literals)</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00907">sat_solver.h:907</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_add67896a84f6372a648154c5770a0ae0"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#add67896a84f6372a648154c5770a0ae0">operations_research::sat::kNoBooleanVariable</a></div><div class="ttdeci">const BooleanVariable kNoBooleanVariable(-1)</div></div>
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<div class="ttc" id="anamespaceoperations__research_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="anamespaceoperations__research_html_a7deeae530369e107f9d91c1a189f451f"><div class="ttname"><a href="namespaceoperations__research.html#a7deeae530369e107f9d91c1a189f451f">operations_research::Arc</a></div><div class="ttdeci">std::pair< int64_t, int64_t > Arc</div><div class="ttdef"><b>Definition:</b> <a href="search_8cc_source.html#l03434">search.cc:3434</a></div></div>
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<div class="ttc" id="anamespacestd_html"><div class="ttname"><a href="namespacestd.html">std</a></div><div class="ttdoc">STL namespace.</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="arouting__flow_8cc_html_a64e7efc5529154ba56903e75f5300990"><div class="ttname"><a href="routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990">tail</a></div><div class="ttdeci">int64_t tail</div><div class="ttdef"><b>Definition:</b> <a href="routing__flow_8cc_source.html#l00149">routing_flow.cc:149</a></div></div>
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<div class="ttc" id="arouting__flow_8cc_html_afca32f65388659a4b0956496169488b4"><div class="ttname"><a href="routing__flow_8cc.html#afca32f65388659a4b0956496169488b4">head</a></div><div class="ttdeci">int64_t head</div><div class="ttdef"><b>Definition:</b> <a href="routing__flow_8cc_source.html#l00150">routing_flow.cc:150</a></div></div>
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<div class="ttc" id="asat_2model_8h_html"><div class="ttname"><a href="sat_2model_8h.html">model.h</a></div></div>
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<div class="ttc" id="asat__base_8h_html"><div class="ttname"><a href="sat__base_8h.html">sat_base.h</a></div></div>
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<div class="ttc" id="asat__solver_8h_html"><div class="ttname"><a href="sat__solver_8h.html">sat_solver.h</a></div></div>
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<div class="ttc" id="asparse__submatrix_8cc_html_a4d53eac2ef2732c28fa9fb663e0c19a7"><div class="ttname"><a href="sparse__submatrix_8cc.html#a4d53eac2ef2732c28fa9fb663e0c19a7">end</a></div><div class="ttdeci">std::optional< int64_t > end</div><div class="ttdef"><b>Definition:</b> <a href="sparse__submatrix_8cc_source.html#l00036">sparse_submatrix.cc:36</a></div></div>
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<div class="ttc" id="asparse__submatrix_8cc_html_a9b7656b922ea4ec96097d7380c0e61fe"><div class="ttname"><a href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a></div><div class="ttdeci">int64_t start</div><div class="ttdef"><b>Definition:</b> <a href="sparse__submatrix_8cc_source.html#l00035">sparse_submatrix.cc:35</a></div></div>
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<div class="ttc" id="astrong__integers_8h_html"><div class="ttname"><a href="strong__integers_8h.html">strong_integers.h</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_circuit_propagator_1_1_options_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_circuit_propagator_1_1_options.html">operations_research::sat::CircuitPropagator::Options</a></div><div class="ttdef"><b>Definition:</b> <a href="circuit_8h_source.html#l00048">circuit.h:48</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_circuit_propagator_1_1_options_html_af1123baeaa5412b68d37d8adf43ccb7c"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_circuit_propagator_1_1_options.html#af1123baeaa5412b68d37d8adf43ccb7c">operations_research::sat::CircuitPropagator::Options::multiple_subcircuit_through_zero</a></div><div class="ttdeci">bool multiple_subcircuit_through_zero</div><div class="ttdef"><b>Definition:</b> <a href="circuit_8h_source.html#l00051">circuit.h:51</a></div></div>
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