238 lines
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238 lines
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<div class="headertitle"><div class="title">sat_solver_utils.cc</div></div>
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<a href="sat__solver__utils_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="sat__solver__utils_8h.html">ortools/linear_solver/sat_solver_utils.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 "absl/memory/memory.h"</span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include "<a class="code" href="parameters_8pb_8h.html">ortools/glop/parameters.pb.h</a>"</span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include "<a class="code" href="preprocessor_8h.html">ortools/glop/preprocessor.h</a>"</span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include "<a class="code" href="lp__data_2proto__utils_8h.html">ortools/lp_data/proto_utils.h</a>"</span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceoperations__research.html">operations_research</a> {</div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"><a class="line" href="sat__solver__utils_8cc.html#a1f20ca1e3ad7b674577c94e6228d30f4"> 23</a></span><span class="preprocessor">#define ADD_LP_PREPROCESSOR(name) \</span></div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor"> names.push_back(#name); \</span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor"> lp_preprocessors.push_back(absl::make_unique<name>(&glop_params));</span></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"><a class="line" href="namespaceoperations__research.html#a5877c7654e3d8c4978843f37d2134feb"> 27</a></span><a class="code hl_enumeration" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493">glop::ProblemStatus</a> <a class="code hl_function" href="namespaceoperations__research.html#a5877c7654e3d8c4978843f37d2134feb">ApplyMipPresolveSteps</a>(</div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1glop_1_1_glop_parameters.html">glop::GlopParameters</a>& glop_params, <a class="code hl_class" href="classoperations__research_1_1_m_p_model_proto.html">MPModelProto</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>,</div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> std::vector<std::unique_ptr<glop::Preprocessor>>* for_postsolve,</div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</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="l00031" name="l00031"></a><span class="lineno"> 31</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a> != <span class="keyword">nullptr</span>);</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">// TODO(user): General constraints are currently not supported.</span></div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <span class="keywordflow">if</span> (!<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->general_constraint().empty()) {</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493afaee4ca3c30ee18148ce3ada37466498">glop::ProblemStatus::INIT</a>;</div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> }</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <span class="comment">// We need to copy the hint because LinearProgramToMPModelProto() loose it.</span></div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> hint_is_present = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->has_solution_hint();</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">const</span> <span class="keyword">auto</span> copy_of_hint = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->solution_hint();</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> </div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="comment">// TODO(user): Remove this back and forth conversion. We could convert</span></div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="comment">// the LinearProgram directly to a CpModelProto, or we could have a custom</span></div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="comment">// implementation of these presolve steps.</span></div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <a class="code hl_class" href="classoperations__research_1_1glop_1_1_linear_program.html">glop::LinearProgram</a> lp;</div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <a class="code hl_function" href="namespaceoperations__research_1_1glop.html#a4066bdd6e74f798c189fa8e830fcd37b">glop::MPModelProtoToLinearProgram</a>(*<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>, &lp);</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="comment">// These presolve might change the problem size.</span></div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="comment">// TODO(user): transform the hint instead of disabling presolve.</span></div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">if</span> (!hint_is_present) {</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keyword">const</span> std::string header =</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="stringliteral">"Running basic LP presolve, initial problem dimensions: "</span>;</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <a class="code hl_define" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger, <span class="stringliteral">""</span>);</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <a class="code hl_define" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger, header, lp.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#adcc58612f6a1dc35ff3ffdb34188f299">GetDimensionString</a>());</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> std::vector<std::string> names;</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> std::vector<std::unique_ptr<glop::Preprocessor>> lp_preprocessors;</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <a class="code hl_define" href="sat__solver__utils_8cc.html#a1f20ca1e3ad7b674577c94e6228d30f4">ADD_LP_PREPROCESSOR</a>(<a class="code hl_class" href="classoperations__research_1_1glop_1_1_fixed_variable_preprocessor.html">glop::FixedVariablePreprocessor</a>);</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <a class="code hl_define" href="sat__solver__utils_8cc.html#a1f20ca1e3ad7b674577c94e6228d30f4">ADD_LP_PREPROCESSOR</a>(<a class="code hl_class" href="classoperations__research_1_1glop_1_1_singleton_preprocessor.html">glop::SingletonPreprocessor</a>);</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <a class="code hl_define" href="sat__solver__utils_8cc.html#a1f20ca1e3ad7b674577c94e6228d30f4">ADD_LP_PREPROCESSOR</a>(<a class="code hl_class" href="classoperations__research_1_1glop_1_1_forcing_and_implied_free_constraint_preprocessor.html">glop::ForcingAndImpliedFreeConstraintPreprocessor</a>);</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <a class="code hl_define" href="sat__solver__utils_8cc.html#a1f20ca1e3ad7b674577c94e6228d30f4">ADD_LP_PREPROCESSOR</a>(<a class="code hl_class" href="classoperations__research_1_1glop_1_1_free_constraint_preprocessor.html">glop::FreeConstraintPreprocessor</a>);</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> </div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="comment">// TODO(user): Usually it is good to run the ImpliedFreePreprocessor before</span></div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="comment">// this one. However this seems to cause problem on atm20-100.mps. Moreover,</span></div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="comment">// for the conversion, it is better to have tight bounds even if the bound</span></div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="comment">// propagator is supposed to undo what this presolve would have done.</span></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="sat__solver__utils_8cc.html#a1f20ca1e3ad7b674577c94e6228d30f4">ADD_LP_PREPROCESSOR</a>(<a class="code hl_class" href="classoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor.html">glop::UnconstrainedVariablePreprocessor</a>);</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="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < lp_preprocessors.size(); ++i) {</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="keyword">auto</span>& preprocessor = lp_preprocessors[i];</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> preprocessor->UseInMipContext();</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> need_postsolve = preprocessor->Run(&lp);</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> names[i].resize(header.size(), <span class="charliteral">' '</span>); <span class="comment">// padding.</span></div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <a class="code hl_define" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger, names[i], lp.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#adcc58612f6a1dc35ff3ffdb34188f299">GetDimensionString</a>());</div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keyword">const</span> <a class="code hl_enumeration" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493">glop::ProblemStatus</a> status = preprocessor->status();</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keywordflow">if</span> (status != <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493afaee4ca3c30ee18148ce3ada37466498">glop::ProblemStatus::INIT</a>) <span class="keywordflow">return</span> status;</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="keywordflow">if</span> (need_postsolve) for_postsolve->push_back(std::move(preprocessor));</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> }</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> }</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="comment">// Finally, we make sure all domains contain zero.</span></div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="keywordflow">if</span> (!hint_is_present) {</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keyword">auto</span> shift_bounds =</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> absl::make_unique<glop::ShiftVariableBoundsPreprocessor>(&glop_params);</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> shift_bounds->UseInMipContext();</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> need_postsolve = shift_bounds->Run(&lp);</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="keywordflow">if</span> (shift_bounds->status() != <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493afaee4ca3c30ee18148ce3ada37466498">glop::ProblemStatus::INIT</a>) {</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="keywordflow">return</span> shift_bounds->status();</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> }</div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keywordflow">if</span> (need_postsolve) {</div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> for_postsolve->push_back(std::move(shift_bounds));</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> }</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> }</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> </div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <a class="code hl_function" href="namespaceoperations__research_1_1glop.html#a8750840afdd5774223821fd504df04c5">glop::LinearProgramToMPModelProto</a>(lp, <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</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> <span class="comment">// Restore the hint, note that none of the presolve steps we run here change</span></div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="comment">// the number of variables in the model.</span></div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keywordflow">if</span> (hint_is_present) {</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> *<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->mutable_solution_hint() = copy_of_hint;</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> }</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> </div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493afaee4ca3c30ee18148ce3ada37466498">glop::ProblemStatus::INIT</a>;</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> </div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span><span class="preprocessor">#undef ADD_LP_PREPROCESSOR</span></div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> </div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span>} <span class="comment">// namespace operations_research</span></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#l00492">base/logging.h:492</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html">operations_research::MPModelProto</a></div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l02800">linear_solver.pb.h:2801</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_1glop_1_1_fixed_variable_preprocessor_html"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_fixed_variable_preprocessor.html">operations_research::glop::FixedVariablePreprocessor</a></div><div class="ttdef"><b>Definition:</b> <a href="preprocessor_8h_source.html#l00521">preprocessor.h:521</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_forcing_and_implied_free_constraint_preprocessor_html"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_forcing_and_implied_free_constraint_preprocessor.html">operations_research::glop::ForcingAndImpliedFreeConstraintPreprocessor</a></div><div class="ttdef"><b>Definition:</b> <a href="preprocessor_8h_source.html#l00556">preprocessor.h:556</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_free_constraint_preprocessor_html"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_free_constraint_preprocessor.html">operations_research::glop::FreeConstraintPreprocessor</a></div><div class="ttdef"><b>Definition:</b> <a href="preprocessor_8h_source.html#l00751">preprocessor.h:751</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_glop_parameters_html"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_glop_parameters.html">operations_research::glop::GlopParameters</a></div><div class="ttdef"><b>Definition:</b> <a href="parameters_8pb_8h_source.html#l00194">parameters.pb.h:195</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html">operations_research::glop::LinearProgram</a></div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8h_source.html#l00055">lp_data.h:55</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_adcc58612f6a1dc35ff3ffdb34188f299"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#adcc58612f6a1dc35ff3ffdb34188f299">operations_research::glop::LinearProgram::GetDimensionString</a></div><div class="ttdeci">std::string GetDimensionString() const</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00425">lp_data.cc:425</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_singleton_preprocessor_html"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_singleton_preprocessor.html">operations_research::glop::SingletonPreprocessor</a></div><div class="ttdef"><b>Definition:</b> <a href="preprocessor_8h_source.html#l00432">preprocessor.h:432</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor_html"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor.html">operations_research::glop::UnconstrainedVariablePreprocessor</a></div><div class="ttdef"><b>Definition:</b> <a href="preprocessor_8h_source.html#l00699">preprocessor.h:699</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="alp__data_2proto__utils_8h_html"><div class="ttname"><a href="lp__data_2proto__utils_8h.html">proto_utils.h</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a4066bdd6e74f798c189fa8e830fcd37b"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a4066bdd6e74f798c189fa8e830fcd37b">operations_research::glop::MPModelProtoToLinearProgram</a></div><div class="ttdeci">void MPModelProtoToLinearProgram(const MPModelProto &input, LinearProgram *output)</div><div class="ttdef"><b>Definition:</b> <a href="proto__utils_8cc_source.html#l00051">proto_utils.cc:51</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a8750840afdd5774223821fd504df04c5"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a8750840afdd5774223821fd504df04c5">operations_research::glop::LinearProgramToMPModelProto</a></div><div class="ttdeci">void LinearProgramToMPModelProto(const LinearProgram &input, MPModelProto *output)</div><div class="ttdef"><b>Definition:</b> <a href="proto__utils_8cc_source.html#l00020">proto_utils.cc:20</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a884f3b645d22471e5ed3320e182cd493"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493">operations_research::glop::ProblemStatus</a></div><div class="ttdeci">ProblemStatus</div><div class="ttdef"><b>Definition:</b> <a href="lp__types_8h_source.html#l00102">lp_types.h:102</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a884f3b645d22471e5ed3320e182cd493afaee4ca3c30ee18148ce3ada37466498"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493afaee4ca3c30ee18148ce3ada37466498">operations_research::glop::ProblemStatus::INIT</a></div><div class="ttdeci">@ INIT</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_a5877c7654e3d8c4978843f37d2134feb"><div class="ttname"><a href="namespaceoperations__research.html#a5877c7654e3d8c4978843f37d2134feb">operations_research::ApplyMipPresolveSteps</a></div><div class="ttdeci">glop::ProblemStatus ApplyMipPresolveSteps(const glop::GlopParameters &glop_params, MPModelProto *model, std::vector< std::unique_ptr< glop::Preprocessor > > *for_postsolve, SolverLogger *logger)</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver__utils_8cc_source.html#l00027">sat_solver_utils.cc:27</a></div></div>
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<div class="ttc" id="aparameters_8pb_8h_html"><div class="ttname"><a href="parameters_8pb_8h.html">parameters.pb.h</a></div></div>
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<div class="ttc" id="apreprocessor_8h_html"><div class="ttname"><a href="preprocessor_8h.html">preprocessor.h</a></div></div>
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<div class="ttc" id="asat__solver__utils_8cc_html_a1f20ca1e3ad7b674577c94e6228d30f4"><div class="ttname"><a href="sat__solver__utils_8cc.html#a1f20ca1e3ad7b674577c94e6228d30f4">ADD_LP_PREPROCESSOR</a></div><div class="ttdeci">#define ADD_LP_PREPROCESSOR(name)</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver__utils_8cc_source.html#l00023">sat_solver_utils.cc:23</a></div></div>
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<div class="ttc" id="asat__solver__utils_8h_html"><div class="ttname"><a href="sat__solver__utils_8h.html">sat_solver_utils.h</a></div></div>
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<div class="ttc" id="autil_2logging_8h_html_a5f67b653dd99ddbe5e3367e3b4b7b532"><div class="ttname"><a href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a></div><div class="ttdeci">#define SOLVER_LOG(logger,...)</div><div class="ttdef"><b>Definition:</b> <a href="util_2logging_8h_source.html#l00069">util/logging.h:69</a></div></div>
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