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<div class="headertitle"><div class="title">cp_model_presolve.h</div></div>
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<a href="cp__model__presolve_8h.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">#ifndef OR_TOOLS_SAT_CP_MODEL_PRESOLVE_H_</span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#define OR_TOOLS_SAT_CP_MODEL_PRESOLVE_H_</span></div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <cstdint></span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include <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 "<a class="code" href="cp__model_8pb_8h.html">ortools/sat/cp_model.pb.h</a>"</span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include "<a class="code" href="cp__model__utils_8h.html">ortools/sat/cp_model_utils.h</a>"</span></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include "<a class="code" href="presolve__context_8h.html">ortools/sat/presolve_context.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="presolve__util_8h.html">ortools/sat/presolve_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="sat__parameters_8pb_8h.html">ortools/sat/sat_parameters.pb.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="affine__relation_8h.html">ortools/util/affine_relation.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="bitset_8h.html">ortools/util/bitset.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="sorted__interval__list_8h.html">ortools/util/sorted_interval_list.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="time__limit_8h.html">ortools/util/time_limit.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"> 33</span><span class="comment">// Replaces all the instance of a variable i (and the literals referring to it)</span></div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="comment">// by mapping[i]. The definition of variables i is also moved to its new index.</span></div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="comment">// Variables with a negative mapping value are ignored and it is an error if</span></div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="comment">// such variable is referenced anywhere (this is CHECKed).</span></div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="comment">//</span></div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="comment">// The image of the mapping should be dense in [0, new_num_variables), this is</span></div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="comment">// also CHECKed.</span></div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ae82ca1b371f76400eefb8e94246c5fe2">ApplyVariableMapping</a>(<span class="keyword">const</span> std::vector<int>& mapping,</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">const</span> PresolveContext& <a class="code hl_variable" href="gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6">context</a>);</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span><span class="comment">// Presolves the initial content of presolved_model.</span></div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="comment">//</span></div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><span class="comment">// This also creates a mapping model that encode the correspondence between the</span></div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="comment">// two problems. This works as follow:</span></div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="comment">// - The first variables of mapping_model are in one to one correspondence with</span></div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="comment">// the variables of the initial model.</span></div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span><span class="comment">// - The presolved_model variables are in one to one correspondence with the</span></div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span><span class="comment">// variable at the indices given by postsolve_mapping in the mapping model.</span></div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span><span class="comment">// - Fixing one of the two sets of variables and solving the model will assign</span></div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="comment">// the other set to a feasible solution of the other problem. Moreover, the</span></div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span><span class="comment">// objective value of these solutions will be the same. Note that solving such</span></div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span><span class="comment">// problems will take little time in practice because the propagation will</span></div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span><span class="comment">// basically do all the work.</span></div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span><span class="comment">//</span></div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="comment">// Note(user): an optimization model can be transformed into a decision problem,</span></div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="comment">// if for instance the objective is fixed, or independent from the rest of the</span></div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><span class="comment">// problem.</span></div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span><span class="comment">//</span></div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span><span class="comment">// TODO(user): Identify disconnected components and returns a vector of</span></div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="comment">// presolved model? If we go this route, it may be nicer to store the indices</span></div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span><span class="comment">// inside the model. We can add a IntegerVariableProto::initial_index;</span></div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_cp_model_presolver.html"> 64</a></span><span class="keyword">class </span><a class="code hl_class" href="classoperations__research_1_1sat_1_1_cp_model_presolver.html">CpModelPresolver</a> {</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keyword">public</span>:</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_presolver.html#a7ebb6a65cb3d0da1dcf19929c38640e0">CpModelPresolver</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_presolve_context.html">PresolveContext</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6">context</a>,</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> std::vector<int>* postsolve_mapping);</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> </div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="comment">// Returns false if a non-recoverable error was encountered.</span></div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="comment">// TODO(user): Make sure this can never run into this case provided that the</span></div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="comment">// initial model is valid!</span></div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_presolver.html#a4357280dffaba15fcb7f932afe0aea3f">Presolve</a>();</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> <span class="comment">// Executes presolve method for the given constraint. Public for testing only.</span></div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_presolver.html#ab37522044009144ac6eff3b3d4c1d271">PresolveOneConstraint</a>(<span class="keywordtype">int</span> c);</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> </div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="comment">// Public for testing only.</span></div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_presolver.html#a6c402792bbe83aa90b75033080755f9b">RemoveEmptyConstraints</a>();</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> </div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keyword">private</span>:</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="keywordtype">void</span> PresolveToFixPoint();</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> </div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="comment">// Runs the probing.</span></div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="keywordtype">void</span> Probe();</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> </div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="comment">// Presolve functions.</span></div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="comment">// They should return false only if the constraint <-> variable graph didn't</span></div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="comment">// change. This is just an optimization, returning true is always correct.</span></div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="comment">// Invariant about UNSAT: All these functions should abort right away if</span></div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="comment">// context_.IsUnsat() is true. And the only way to change the status to unsat</span></div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="comment">// is through ABSL_MUST_USE_RESULT function that should also abort right away</span></div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="comment">// the current code. This way we shouldn't keep doing computation on an</span></div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="comment">// inconsistent state.</span></div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="comment">// TODO(user): Make these public and unit test.</span></div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordtype">bool</span> ConvertIntMax(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keywordtype">bool</span> PresolveAllDiff(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="keywordtype">bool</span> PresolveAutomaton(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="keywordtype">bool</span> PresolveElement(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keywordtype">bool</span> PresolveIntAbs(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keywordtype">bool</span> PresolveIntDiv(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keywordtype">bool</span> PresolveIntMax(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="keywordtype">bool</span> PresolveIntMin(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordtype">bool</span> PresolveIntMod(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordtype">bool</span> PresolveIntProd(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keywordtype">bool</span> PresolveInterval(<span class="keywordtype">int</span> c, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="keywordtype">bool</span> PresolveInverse(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keywordtype">bool</span> PresolveLinMax(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="keywordtype">bool</span> PresolveLinMin(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordtype">bool</span> PresolveTable(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> </div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keywordtype">bool</span> PresolveCumulative(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keywordtype">bool</span> PresolveNoOverlap(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keywordtype">bool</span> PresolveNoOverlap2D(<span class="keywordtype">int</span> c, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keywordtype">bool</span> PresolveReservoir(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> </div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keywordtype">bool</span> PresolveCircuit(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="keywordtype">bool</span> PresolveRoutes(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="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="keywordtype">bool</span> PresolveAtMostOrExactlyOne(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordtype">bool</span> PresolveAtMostOne(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="keywordtype">bool</span> PresolveExactlyOne(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> </div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordtype">bool</span> PresolveBoolAnd(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keywordtype">bool</span> PresolveBoolOr(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <span class="keywordtype">bool</span> PresolveBoolXor(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="keywordtype">bool</span> PresolveEnforcementLiteral(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="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> <span class="comment">// Regroups terms and substitute affine relations.</span></div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="comment">// Returns true if the set of variables in the expression changed.</span></div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="keyword">template</span> <<span class="keyword">typename</span> ProtoWithVarsAndCoeffs></div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keywordtype">bool</span> CanonicalizeLinearExpressionInternal(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>,</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> ProtoWithVarsAndCoeffs* <a class="code hl_variable" href="cp__model__fz__solver_8cc.html#aed003f5eb5197bc586b7ef2c36a63da2">proto</a>,</div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> int64_t* offset);</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordtype">bool</span> CanonicalizeLinearExpression(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>,</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_expression_proto.html">LinearExpressionProto</a>* exp);</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> </div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="comment">// For the linear constraints, we have more than one function.</span></div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keywordtype">bool</span> CanonicalizeLinear(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keywordtype">bool</span> PropagateDomainsInLinear(<span class="keywordtype">int</span> c, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <span class="keywordtype">bool</span> RemoveSingletonInLinear(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="keywordtype">bool</span> PresolveSmallLinear(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> <span class="keywordtype">bool</span> PresolveLinearOnBooleans(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keywordtype">void</span> PresolveLinearEqualityModuloTwo(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="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> <span class="comment">// Scheduling helpers.</span></div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordtype">void</span> AddLinearConstraintFromInterval(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> </div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> <span class="comment">// SetPPC is short for set packing, partitioning and covering constraints.</span></div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="comment">// These are sum of booleans <=, = and >= 1 respectively.</span></div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keywordtype">bool</span> ProcessSetPPC();</div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> </div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="comment">// Removes dominated constraints or fixes some variables for given pair of</span></div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="comment">// setppc constraints. This assumes that literals in constraint c1 is subset</span></div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> <span class="comment">// of literals in constraint c2.</span></div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <span class="keywordtype">bool</span> ProcessSetPPCSubset(<span class="keywordtype">int</span> c1, <span class="keywordtype">int</span> c2, <span class="keyword">const</span> std::vector<int>& c2_minus_c1,</div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="keyword">const</span> std::vector<int>& original_constraint_index,</div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> std::vector<bool>* marked_for_removal);</div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> </div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="keywordtype">void</span> PresolvePureSatPart();</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> </div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="comment">// Extracts AtMostOne constraint from Linear constraint.</span></div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <span class="keywordtype">void</span> ExtractAtMostOneFromLinear(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> </div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> <span class="keywordtype">void</span> DivideLinearByGcd(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> </div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keywordtype">void</span> ExtractEnforcementLiteralFromLinearConstraint(<span class="keywordtype">int</span> ct_index,</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="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">// Extracts cliques from bool_and and small at_most_one constraints and</span></div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> <span class="comment">// transforms them into maximal cliques.</span></div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> <span class="keywordtype">void</span> TransformIntoMaxCliques();</div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> </div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="comment">// Converts bool_or and at_most_one of size 2 to bool_and.</span></div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="keywordtype">void</span> ExtractBoolAnd();</div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> </div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> <span class="keywordtype">void</span> ExpandObjective();</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> </div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> <span class="keywordtype">void</span> TryToSimplifyDomain(<span class="keywordtype">int</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> </div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> <span class="keywordtype">void</span> MergeNoOverlapConstraints();</div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> </div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <span class="comment">// Boths function are responsible for dealing with affine relations.</span></div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="comment">// The second one returns false on UNSAT.</span></div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <span class="keywordtype">void</span> EncodeAllAffineRelations();</div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <span class="keywordtype">bool</span> PresolveAffineRelationIfAny(<span class="keywordtype">int</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> </div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="keywordtype">bool</span> ExploitEquivalenceRelations(<span class="keywordtype">int</span> c, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="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> ABSL_MUST_USE_RESULT <span class="keywordtype">bool</span> RemoveConstraint(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> ABSL_MUST_USE_RESULT <span class="keywordtype">bool</span> MarkConstraintAsFalse(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="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> std::vector<int>* postsolve_mapping_;</div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_presolve_context.html">PresolveContext</a>* context_;</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <a class="code hl_class" href="classoperations__research_1_1_solver_logger.html">SolverLogger</a>* logger_;</div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> </div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> <span class="comment">// Used by CanonicalizeLinearExpressionInternal().</span></div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> std::vector<std::pair<int, int64_t>> tmp_terms_;</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 helper class perform copy with simplification from a model and a</span></div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span><span class="comment">// partial assignment to another model. The purpose is to miminize the size of</span></div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span><span class="comment">// the copied model, as well as to reduce the pressure on the memory sub-system.</span></div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span><span class="comment">//</span></div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span><span class="comment">// It is currently used by the LNS part, but could be used with any other scheme</span></div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span><span class="comment">// that generates partial assignments.</span></div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_model_copy.html"> 209</a></span><span class="keyword">class </span><a class="code hl_class" href="classoperations__research_1_1sat_1_1_model_copy.html">ModelCopy</a> {</div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> <span class="keyword">public</span>:</div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> <span class="keyword">explicit</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_model_copy.html#a4dc4003514ad43b655e41524c32352f1">ModelCopy</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_presolve_context.html">PresolveContext</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6">context</a>);</div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> </div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> <span class="comment">// Copies all constraints from in_model to working model of the context.</span></div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="comment">// During the process, it will read variable domains from the context, and</span></div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <span class="comment">// simplify constraints to minimize the size of the copied model.</span></div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <span class="comment">// Thus it is important that the context->working_model already have the</span></div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> <span class="comment">// variables part copied.</span></div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <span class="comment">// It returns false iff the model is proven infeasible.</span></div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> <span class="comment">// It does not clear the constraints part of the working model of the context.</span></div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_model_copy.html#ad74e75903c729a01bd681095bd51ff4e">ImportAndSimplifyConstraints</a>(</div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_cp_model_proto.html">CpModelProto</a>& in_model,</div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <span class="keyword">const</span> std::vector<int>& ignored_constraints);</div>
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> </div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <span class="keyword">private</span>:</div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="comment">// Overwrites the out_model to be unsat. Returns false.</span></div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="keywordtype">bool</span> CreateUnsatModel();</div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> </div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <span class="keywordtype">void</span> CopyEnforcementLiterals(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& orig,</div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* dest);</div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="keywordtype">bool</span> OneEnforcementLiteralIsFalse(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>) <span class="keyword">const</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">// All these functions return false if the constraint is found infeasible.</span></div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <span class="keywordtype">bool</span> CopyBoolOr(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <span class="keywordtype">bool</span> CopyBoolAnd(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <span class="keywordtype">bool</span> CopyLinear(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> <span class="keywordtype">bool</span> CopyAtMostOne(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="keywordtype">bool</span> CopyExactlyOne(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <span class="keywordtype">bool</span> CopyInterval(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>, <span class="keywordtype">int</span> c);</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> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_presolve_context.html">PresolveContext</a>* context_;</div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> int64_t skipped_non_zero_ = 0;</div>
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<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> </div>
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<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <span class="comment">// Temp vectors.</span></div>
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<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> std::vector<int> non_fixed_variables_;</div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> std::vector<int64_t> non_fixed_coefficients_;</div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> absl::flat_hash_map<int, int> interval_mapping_;</div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="keywordtype">int</span> starting_constraint_index_ = 0;</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> std::vector<int> temp_enforcement_literals_;</div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> std::vector<int> temp_literals_;</div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span>};</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> </div>
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<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span><span class="comment">// Import the constraints from the in_model to the presolve context.</span></div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span><span class="comment">// It performs on the fly simplification, and returns false if the</span></div>
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span><span class="comment">// model is proved infeasible.</span></div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a980f3e04f0fac2f0f8a7ff4c73572922">ImportConstraintsWithBasicPresolveIntoContext</a>(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_cp_model_proto.html">CpModelProto</a>& in_model,</div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_presolve_context.html">PresolveContext</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6">context</a>);</div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> </div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span><span class="comment">// Copies the non constraint, non variables part of the model.</span></div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a8e28f522e1d211cabbdcff4fd3028593">CopyEverythingExceptVariablesAndConstraintsFieldsIntoContext</a>(</div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_cp_model_proto.html">CpModelProto</a>& in_model, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_presolve_context.html">PresolveContext</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6">context</a>);</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> </div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span><span class="comment">// Convenient wrapper to call the full presolve.</span></div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a5921e7fd881f9a30b1ccb2c90ed672c8">PresolveCpModel</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_presolve_context.html">PresolveContext</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6">context</a>,</div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> std::vector<int>* postsolve_mapping);</div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> </div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span><span class="comment">// Returns the index of duplicate constraints in the given proto in the first</span></div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span><span class="comment">// element of each pair. The second element of each pair is the "representative"</span></div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span><span class="comment">// that is the first constraint in the proto in a set of duplicate constraints.</span></div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span><span class="comment">//</span></div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span><span class="comment">// Empty constraints are ignored. We also do a bit more:</span></div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span><span class="comment">// - We ignore names when comparing constraint.</span></div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span><span class="comment">// - For linear constraints, we ignore the domain. This is because we can</span></div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span><span class="comment">// just merge them if the constraints are the same.</span></div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span><span class="comment">//</span></div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span><span class="comment">// Visible here for testing. This is meant to be called at the end of the</span></div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span><span class="comment">// presolve where constraints have been canonicalized.</span></div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span>std::vector<std::pair<int, int>> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a98b74f23742287a604f9850f26bcc06a">FindDuplicateConstraints</a>(</div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_cp_model_proto.html">CpModelProto</a>& <a class="code hl_variable" href="cp__model__solver_8cc.html#a6ac76d8a372013f67c4973012948ec84">model_proto</a>);</div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> </div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span>} <span class="comment">// namespace sat</span></div>
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<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span>} <span class="comment">// namespace operations_research</span></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="preprocessor">#endif </span><span class="comment">// OR_TOOLS_SAT_CP_MODEL_PRESOLVE_H_</span></div>
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<div class="ttc" id="aaffine__relation_8h_html"><div class="ttname"><a href="affine__relation_8h.html">affine_relation.h</a></div></div>
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<div class="ttc" id="abitset_8h_html"><div class="ttname"><a href="bitset_8h.html">bitset.h</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_solver_logger_html"><div class="ttname"><a href="classoperations__research_1_1_solver_logger.html">operations_research::SolverLogger</a></div><div class="ttdef"><b>Definition:</b> <a href="util_2logging_8h_source.html#l00033">util/logging.h:33</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_constraint_proto_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_constraint_proto.html">operations_research::sat::ConstraintProto</a></div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l03941">cp_model.pb.h:3942</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_presolver_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_presolver.html">operations_research::sat::CpModelPresolver</a></div><div class="ttdef"><b>Definition:</b> <a href="cp__model__presolve_8h_source.html#l00064">cp_model_presolve.h:64</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_presolver_html_a4357280dffaba15fcb7f932afe0aea3f"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_presolver.html#a4357280dffaba15fcb7f932afe0aea3f">operations_research::sat::CpModelPresolver::Presolve</a></div><div class="ttdeci">bool Presolve()</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__presolve_8cc_source.html#l06817">cp_model_presolve.cc:6817</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_presolver_html_a6c402792bbe83aa90b75033080755f9b"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_presolver.html#a6c402792bbe83aa90b75033080755f9b">operations_research::sat::CpModelPresolver::RemoveEmptyConstraints</a></div><div class="ttdeci">void RemoveEmptyConstraints()</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__presolve_8cc_source.html#l00067">cp_model_presolve.cc:67</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_presolver_html_a7ebb6a65cb3d0da1dcf19929c38640e0"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_presolver.html#a7ebb6a65cb3d0da1dcf19929c38640e0">operations_research::sat::CpModelPresolver::CpModelPresolver</a></div><div class="ttdeci">CpModelPresolver(PresolveContext *context, std::vector< int > *postsolve_mapping)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__presolve_8cc_source.html#l06772">cp_model_presolve.cc:6772</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_presolver_html_ab37522044009144ac6eff3b3d4c1d271"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_presolver.html#ab37522044009144ac6eff3b3d4c1d271">operations_research::sat::CpModelPresolver::PresolveOneConstraint</a></div><div class="ttdeci">bool PresolveOneConstraint(int c)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__presolve_8cc_source.html#l05457">cp_model_presolve.cc:5457</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_proto_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_proto.html">operations_research::sat::CpModelProto</a></div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l06083">cp_model.pb.h:6084</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_expression_proto_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_expression_proto.html">operations_research::sat::LinearExpressionProto</a></div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l00766">cp_model.pb.h:767</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_model_copy_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_model_copy.html">operations_research::sat::ModelCopy</a></div><div class="ttdef"><b>Definition:</b> <a href="cp__model__presolve_8h_source.html#l00209">cp_model_presolve.h:209</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_model_copy_html_a4dc4003514ad43b655e41524c32352f1"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_model_copy.html#a4dc4003514ad43b655e41524c32352f1">operations_research::sat::ModelCopy::ModelCopy</a></div><div class="ttdeci">ModelCopy(PresolveContext *context)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__presolve_8cc_source.html#l06460">cp_model_presolve.cc:6460</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_model_copy_html_ad74e75903c729a01bd681095bd51ff4e"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_model_copy.html#ad74e75903c729a01bd681095bd51ff4e">operations_research::sat::ModelCopy::ImportAndSimplifyConstraints</a></div><div class="ttdeci">bool ImportAndSimplifyConstraints(const CpModelProto &in_model, const std::vector< int > &ignored_constraints)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__presolve_8cc_source.html#l06463">cp_model_presolve.cc:6463</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_presolve_context_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_presolve_context.html">operations_research::sat::PresolveContext</a></div><div class="ttdef"><b>Definition:</b> <a href="presolve__context_8h_source.html#l00071">presolve_context.h:71</a></div></div>
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<div class="ttc" id="acp__model_8pb_8h_html"><div class="ttname"><a href="cp__model_8pb_8h.html">cp_model.pb.h</a></div></div>
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<div class="ttc" id="acp__model__fz__solver_8cc_html_aed003f5eb5197bc586b7ef2c36a63da2"><div class="ttname"><a href="cp__model__fz__solver_8cc.html#aed003f5eb5197bc586b7ef2c36a63da2">proto</a></div><div class="ttdeci">CpModelProto proto</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__fz__solver_8cc_source.html#l00115">cp_model_fz_solver.cc:115</a></div></div>
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<div class="ttc" id="acp__model__solver_8cc_html_a6ac76d8a372013f67c4973012948ec84"><div class="ttname"><a href="cp__model__solver_8cc.html#a6ac76d8a372013f67c4973012948ec84">model_proto</a></div><div class="ttdeci">CpModelProto const * model_proto</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__solver_8cc_source.html#l02011">cp_model_solver.cc:2011</a></div></div>
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<div class="ttc" id="acp__model__utils_8h_html"><div class="ttname"><a href="cp__model__utils_8h.html">cp_model_utils.h</a></div></div>
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<div class="ttc" id="ademon__profiler_8cc_html_a05da18ca9c7b657a4a6ea24e07c9b695"><div class="ttname"><a href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a></div><div class="ttdeci">const Constraint * ct</div><div class="ttdef"><b>Definition:</b> <a href="demon__profiler_8cc_source.html#l00043">demon_profiler.cc:43</a></div></div>
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<div class="ttc" id="aexpr__array_8cc_html_a472a99923cbe11ae7b5a5d157d9ad465"><div class="ttname"><a href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a></div><div class="ttdeci">IntVar * var</div><div class="ttdef"><b>Definition:</b> <a href="expr__array_8cc_source.html#l01874">expr_array.cc:1874</a></div></div>
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<div class="ttc" id="agurobi__interface_8cc_html_a5f287b83a753915ae862fed64f8640a6"><div class="ttname"><a href="gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6">context</a></div><div class="ttdeci">GurobiMPCallbackContext * context</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__interface_8cc_source.html#l00513">gurobi_interface.cc:513</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a5921e7fd881f9a30b1ccb2c90ed672c8"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a5921e7fd881f9a30b1ccb2c90ed672c8">operations_research::sat::PresolveCpModel</a></div><div class="ttdeci">bool PresolveCpModel(PresolveContext *context, std::vector< int > *postsolve_mapping)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__presolve_8cc_source.html#l06766">cp_model_presolve.cc:6766</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a8e28f522e1d211cabbdcff4fd3028593"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a8e28f522e1d211cabbdcff4fd3028593">operations_research::sat::CopyEverythingExceptVariablesAndConstraintsFieldsIntoContext</a></div><div class="ttdeci">void CopyEverythingExceptVariablesAndConstraintsFieldsIntoContext(const CpModelProto &in_model, PresolveContext *context)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__presolve_8cc_source.html#l06739">cp_model_presolve.cc:6739</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a980f3e04f0fac2f0f8a7ff4c73572922"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a980f3e04f0fac2f0f8a7ff4c73572922">operations_research::sat::ImportConstraintsWithBasicPresolveIntoContext</a></div><div class="ttdeci">bool ImportConstraintsWithBasicPresolveIntoContext(const CpModelProto &in_model, PresolveContext *context)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__presolve_8cc_source.html#l06728">cp_model_presolve.cc:6728</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a98b74f23742287a604f9850f26bcc06a"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a98b74f23742287a604f9850f26bcc06a">operations_research::sat::FindDuplicateConstraints</a></div><div class="ttdeci">std::vector< std::pair< int, int > > FindDuplicateConstraints(const CpModelProto &model_proto)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__presolve_8cc_source.html#l07280">cp_model_presolve.cc:7280</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_ae82ca1b371f76400eefb8e94246c5fe2"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#ae82ca1b371f76400eefb8e94246c5fe2">operations_research::sat::ApplyVariableMapping</a></div><div class="ttdeci">void ApplyVariableMapping(const std::vector< int > &mapping, const PresolveContext &context)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__presolve_8cc_source.html#l07159">cp_model_presolve.cc:7159</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html"><div class="ttname"><a href="namespaceoperations__research.html">operations_research</a></div><div class="ttdoc">Collection of objects used to extend the Constraint Solver library.</div><div class="ttdef"><b>Definition:</b> <a href="dense__doubly__linked__list_8h_source.html#l00021">dense_doubly_linked_list.h:21</a></div></div>
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<div class="ttc" id="apresolve__context_8h_html"><div class="ttname"><a href="presolve__context_8h.html">presolve_context.h</a></div></div>
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<div class="ttc" id="apresolve__util_8h_html"><div class="ttname"><a href="presolve__util_8h.html">presolve_util.h</a></div></div>
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<div class="ttc" id="asat__parameters_8pb_8h_html"><div class="ttname"><a href="sat__parameters_8pb_8h.html">sat_parameters.pb.h</a></div></div>
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<div class="ttc" id="asorted__interval__list_8h_html"><div class="ttname"><a href="sorted__interval__list_8h.html">sorted_interval_list.h</a></div></div>
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<div class="ttc" id="atime__limit_8h_html"><div class="ttname"><a href="time__limit_8h.html">time_limit.h</a></div></div>
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<li class="navelem"><a class="el" href="dir_a7cc1eeded8f693d0da6c729bc88c45a.html">ortools</a></li><li class="navelem"><a class="el" href="dir_dddac007a45022d9da6ea1dee012c3b9.html">sat</a></li><li class="navelem"><a class="el" href="cp__model__presolve_8h.html">cp_model_presolve.h</a></li>
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