1529 lines
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1529 lines
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<div class="headertitle"><div class="title">sat/lp_utils.cc</div></div>
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<a href="sat_2lp__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_2lp__utils_8h.html">ortools/sat/lp_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 <stdlib.h></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include <algorithm></span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include <cmath></span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include <cstdint></span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include <limits></span></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include <string></span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include <vector></span></div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include "absl/strings/str_cat.h"</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="int__type_8h.html">ortools/base/int_type.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="integral__types_8h.html">ortools/base/integral_types.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="base_2logging_8h.html">ortools/base/logging.h</a>"</span></div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include "<a class="code" href="lp__solver_8h.html">ortools/glop/lp_solver.h</a>"</span></div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</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="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor">#include "<a class="code" href="lp__types_8h.html">ortools/lp_data/lp_types.h</a>"</span></div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#include "<a class="code" href="boolean__problem_8h.html">ortools/sat/boolean_problem.h</a>"</span></div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</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="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="preprocessor">#include "<a class="code" href="integer_8h.html">ortools/sat/integer.h</a>"</span></div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="preprocessor">#include "<a class="code" href="sat__base_8h.html">ortools/sat/sat_base.h</a>"</span></div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="preprocessor">#include "<a class="code" href="fp__utils_8h.html">ortools/util/fp_utils.h</a>"</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="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="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="keyword">namespace </span>sat {</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> </div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="keyword">using</span> glop::ColIndex;</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="keyword">using</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">glop::Fractional</a>;</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span><span class="keyword">using</span> <a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">glop::kInfinity</a>;</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="keyword">using</span> glop::RowIndex;</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> </div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="keyword">using</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_constraint_proto.html">operations_research::MPConstraintProto</a>;</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="keyword">using</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_model_proto.html">operations_research::MPModelProto</a>;</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="keyword">using</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_variable_proto.html">operations_research::MPVariableProto</a>;</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> </div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span><span class="keyword">namespace </span>{</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> </div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="keywordtype">void</span> ScaleConstraint(<span class="keyword">const</span> std::vector<double>& var_scaling,</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> MPConstraintProto* mp_constraint) {</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_terms = mp_constraint->coefficient_size();</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_terms; ++i) {</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">const</span> <span class="keywordtype">int</span> var_index = mp_constraint->var_index(i);</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> mp_constraint->set_coefficient(</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> i, mp_constraint->coefficient(i) / var_scaling[var_index]);</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> }</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span>}</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> </div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="keywordtype">void</span> ApplyVarScaling(<span class="keyword">const</span> std::vector<double> var_scaling,</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> MPModelProto* mp_model) {</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_variables = mp_model->variable_size();</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_variables; ++i) {</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">const</span> <span class="keywordtype">double</span> scaling = var_scaling[i];</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="keyword">const</span> MPVariableProto& mp_var = mp_model->variable(i);</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keyword">const</span> <span class="keywordtype">double</span> old_lb = mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a9748ce3280b2d4c16a2cd38a480b9c7c">lower_bound</a>();</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="keyword">const</span> <span class="keywordtype">double</span> old_ub = mp_var.upper_bound();</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="keyword">const</span> <span class="keywordtype">double</span> old_obj = mp_var.objective_coefficient();</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> mp_model->mutable_variable(i)->set_lower_bound(old_lb * scaling);</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> mp_model->mutable_variable(i)->set_upper_bound(old_ub * scaling);</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> mp_model->mutable_variable(i)->set_objective_coefficient(old_obj / scaling);</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="keywordflow">for</span> (MPConstraintProto& mp_constraint : *mp_model->mutable_constraint()) {</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> ScaleConstraint(var_scaling, &mp_constraint);</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="keywordflow">for</span> (MPGeneralConstraintProto& general_constraint :</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> *mp_model->mutable_general_constraint()) {</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keywordflow">switch</span> (general_constraint.general_constraint_case()) {</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classoperations__research_1_1_m_p_general_constraint_proto.html#a62ad97ce87eebedbf02689673fdd7ba8adb73cf3a9cba115e1da4c121570552df">MPGeneralConstraintProto::kIndicatorConstraint</a>:</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> ScaleConstraint(var_scaling,</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> general_constraint.mutable_indicator_constraint()</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> ->mutable_constraint());</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classoperations__research_1_1_m_p_general_constraint_proto.html#a62ad97ce87eebedbf02689673fdd7ba8aec4b4d410cc58785223094f8ff100eb7">MPGeneralConstraintProto::kAndConstraint</a>:</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classoperations__research_1_1_m_p_general_constraint_proto.html#a62ad97ce87eebedbf02689673fdd7ba8ace5d280d5b6fc0a47041b6e62e4f45b3">MPGeneralConstraintProto::kOrConstraint</a>:</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="comment">// These constraints have only Boolean variables and no constants. They</span></div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="comment">// don't need scaling.</span></div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordflow">default</span>:</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#acdd38e3c9f22f127d7776920e3079eda">FATAL</a>) << <span class="stringliteral">"Scaling unsupported for general constraint of type "</span></div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> << general_constraint.general_constraint_case();</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> }</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span>}</div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> </div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span>} <span class="comment">// namespace</span></div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> </div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#ac71665cf974c4a75adc4c9ad251ae853"> 100</a></span>std::vector<double> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ac71665cf974c4a75adc4c9ad251ae853">ScaleContinuousVariables</a>(<span class="keywordtype">double</span> scaling, <span class="keywordtype">double</span> max_bound,</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_model_proto.html">MPModelProto</a>* mp_model) {</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_variables = mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a233b16fc13c9664e5b818158019af13d">variable_size</a>();</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> std::vector<double> var_scaling(num_variables, 1.0);</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_variables; ++i) {</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="keywordflow">if</span> (mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(i).<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a90a6759a08c3d72c4193a0a75aa581bc">is_integer</a>()) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keyword">const</span> <span class="keywordtype">double</span> lb = mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(i).<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a9748ce3280b2d4c16a2cd38a480b9c7c">lower_bound</a>();</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keyword">const</span> <span class="keywordtype">double</span> ub = mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(i).<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a5158072d27a176fc38524893183d6527">upper_bound</a>();</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keyword">const</span> <span class="keywordtype">double</span> magnitude = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(std::abs(lb), std::abs(ub));</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="keywordflow">if</span> (magnitude == 0 || magnitude > max_bound) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> var_scaling[i] = <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(scaling, max_bound / magnitude);</div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> }</div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> ApplyVarScaling(var_scaling, mp_model);</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="keywordflow">return</span> var_scaling;</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span>}</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> </div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span><span class="comment">// This uses the best rational approximation of x via continuous fractions. It</span></div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span><span class="comment">// is probably not the best implementation, but according to the unit test, it</span></div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span><span class="comment">// seems to do the job.</span></div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#af8b326626fb8ca0efd32ff0564d35731"> 119</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#af8b326626fb8ca0efd32ff0564d35731">FindRationalFactor</a>(<span class="keywordtype">double</span> x, <span class="keywordtype">int</span> limit, <span class="keywordtype">double</span> tolerance) {</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="keyword">const</span> <span class="keywordtype">double</span> initial_x = x;</div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> x = std::abs(x);</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> x -= std::floor(x);</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordtype">int</span> q = 1;</div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="keywordtype">int</span> prev_q = 0;</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keywordflow">while</span> (q < limit) {</div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordflow">if</span> (std::abs(q * initial_x - std::round(q * initial_x)) < q * tolerance) {</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keywordflow">return</span> q;</div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> }</div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> x = 1 / x;</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keyword">const</span> <span class="keywordtype">int</span> new_q = prev_q + <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(std::floor(x)) * q;</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> prev_q = q;</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> q = new_q;</div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> x -= std::floor(x);</div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> }</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span>}</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> </div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span><span class="keyword">namespace </span>{</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">// Returns a factor such that factor * var only need to take integer values to</span></div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span><span class="comment">// satisfy the given constraint. Return 0.0 if we didn't find such factor.</span></div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span><span class="comment">//</span></div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span><span class="comment">// Precondition: var must be the only non-integer in the given constraint.</span></div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span><span class="keywordtype">double</span> GetIntegralityMultiplier(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_model_proto.html">MPModelProto</a>& mp_model,</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> <span class="keyword">const</span> std::vector<double>& var_scaling, <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="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keywordtype">int</span> ct_index, <span class="keywordtype">double</span> tolerance) {</div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(!mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>).<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a90a6759a08c3d72c4193a0a75aa581bc">is_integer</a>());</div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_constraint_proto.html">MPConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> = mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a1a8302446f7835e502a5aced4f29b3bf">constraint</a>(ct_index);</div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordtype">double</span> multiplier = 1.0;</div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="keywordtype">double</span> var_coeff = 0.0;</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> <span class="keyword">const</span> <span class="keywordtype">double</span> max_multiplier = 1e4;</div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index().size(); ++i) {</div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> == <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index(i)) {</div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> var_coeff = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.coefficient(i);</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> }</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> </div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index(i)).<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a90a6759a08c3d72c4193a0a75aa581bc">is_integer</a>());</div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="comment">// This actually compute the smallest multiplier to make all other</span></div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="comment">// terms in the constraint integer.</span></div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <span class="keyword">const</span> <span class="keywordtype">double</span> coeff =</div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> multiplier * <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.coefficient(i) / var_scaling[<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index(i)];</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> multiplier *=</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#af8b326626fb8ca0efd32ff0564d35731">FindRationalFactor</a>(coeff, <span class="comment">/*limit=*/</span>100, multiplier * tolerance);</div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <span class="keywordflow">if</span> (multiplier == 0 || multiplier > max_multiplier) <span class="keywordflow">return</span> 0.0;</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> <a class="code hl_define" href="base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0">DCHECK_NE</a>(var_coeff, 0.0);</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="comment">// The constraint bound need to be infinite or integer.</span></div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code hl_variable" href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a> : {<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.lower_bound(), <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.upper_bound()}) {</div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> <span class="keywordflow">if</span> (!std::isfinite(<a class="code hl_variable" href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a>)) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <span class="keywordflow">if</span> (std::abs(std::round(<a class="code hl_variable" href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a> * multiplier) - <a class="code hl_variable" href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a> * multiplier) ></div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> tolerance * multiplier) {</div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> <span class="keywordflow">return</span> 0.0;</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> }</div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="keywordflow">return</span> std::abs(multiplier * var_coeff);</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> </div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span>} <span class="comment">// namespace</span></div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> </div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a8163165c60b5914e1e8476c56b048664"> 182</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a8163165c60b5914e1e8476c56b048664">RemoveNearZeroTerms</a>(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_parameters.html">SatParameters</a>& params, <a class="code hl_class" href="classoperations__research_1_1_m_p_model_proto.html">MPModelProto</a>* mp_model,</div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</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="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_variables = mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a233b16fc13c9664e5b818158019af13d">variable_size</a>();</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> </div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="comment">// Compute for each variable its current maximum magnitude. Note that we will</span></div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <span class="comment">// only scale variable with a coefficient >= 1, so it is safe to use this</span></div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <span class="comment">// bound.</span></div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> std::vector<double> max_bounds(num_variables);</div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_variables; ++i) {</div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <span class="keywordtype">double</span> <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = std::abs(mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(i).<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a9748ce3280b2d4c16a2cd38a480b9c7c">lower_bound</a>());</div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>, std::abs(mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(i).<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a5158072d27a176fc38524893183d6527">upper_bound</a>()));</div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>, params.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#acacea4a8ea1bcb7601a0564fe006801d">mip_max_bound</a>());</div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> max_bounds[i] = <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>;</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> }</div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> </div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <span class="comment">// We want the maximum absolute error while setting coefficients to zero to</span></div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <span class="comment">// not exceed our mip wanted precision. So for a binary variable we might set</span></div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> <span class="comment">// to zero coefficient around 1e-7. But for large domain, we need lower coeff</span></div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> <span class="comment">// than that, around 1e-12 with the default params.mip_max_bound(). This also</span></div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <span class="comment">// depends on the size of the constraint.</span></div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> int64_t num_removed = 0;</div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> <span class="keywordtype">double</span> largest_removed = 0.0;</div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_constraints = mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#ae3687769a11bd922a263d0135f84a064">constraint_size</a>();</div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> c = 0; c < num_constraints; ++c) {</div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_constraint_proto.html">MPConstraintProto</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> = mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a1615418d90b3ab3c4bbd2d886e8cac37">mutable_constraint</a>(c);</div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <span class="keywordtype">int</span> new_size = 0;</div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> <span class="keyword">const</span> <span class="keywordtype">int</span> size = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->var_index().size();</div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> <span class="keywordflow">if</span> (size == 0) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> <span class="keyword">const</span> <span class="keywordtype">double</span> threshold =</div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> params.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a3b48343e26eed9200efcffbdc71b359a">mip_wanted_precision</a>() / <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(size);</div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < size; ++i) {</div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->var_index(i);</div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> <span class="keyword">const</span> <span class="keywordtype">double</span> coeff = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->coefficient(i);</div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="keywordflow">if</span> (std::abs(coeff) * max_bounds[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>] < threshold) {</div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> largest_removed = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(largest_removed, std::abs(coeff));</div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> }</div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->set_var_index(new_size, <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->set_coefficient(new_size, coeff);</div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> ++new_size;</div>
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<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> }</div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> num_removed += size - new_size;</div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->mutable_var_index()->Truncate(new_size);</div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->mutable_coefficient()->Truncate(new_size);</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> </div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="keywordflow">if</span> (num_removed > 0) {</div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <a class="code hl_define" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger, <span class="stringliteral">"Removed "</span>, num_removed,</div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> <span class="stringliteral">" near zero terms with largest magnitude of "</span>, largest_removed,</div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <span class="stringliteral">"."</span>);</div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> }</div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span>}</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"><a class="line" href="namespaceoperations__research_1_1sat.html#ae188c568fdffc07e6443ba7eb11cff1b"> 235</a></span>std::vector<double> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ae188c568fdffc07e6443ba7eb11cff1b">DetectImpliedIntegers</a>(<a class="code hl_class" href="classoperations__research_1_1_m_p_model_proto.html">MPModelProto</a>* mp_model,</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</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="l00237" name="l00237"></a><span class="lineno"> 237</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_variables = mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a233b16fc13c9664e5b818158019af13d">variable_size</a>();</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> std::vector<double> var_scaling(num_variables, 1.0);</div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> </div>
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="keywordtype">int</span> initial_num_integers = 0;</div>
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<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_variables; ++i) {</div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> <span class="keywordflow">if</span> (mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(i).<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a90a6759a08c3d72c4193a0a75aa581bc">is_integer</a>()) ++initial_num_integers;</div>
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> }</div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(1) << <span class="stringliteral">"Initial num integers: "</span> << initial_num_integers;</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">// We will process all equality constraints with exactly one non-integer.</span></div>
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<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <span class="keyword">const</span> <span class="keywordtype">double</span> tolerance = 1e-6;</div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> std::vector<int> constraint_queue;</div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> </div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_constraints = mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#ae3687769a11bd922a263d0135f84a064">constraint_size</a>();</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> std::vector<int> constraint_to_num_non_integer(num_constraints, 0);</div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> std::vector<std::vector<int>> var_to_constraints(num_variables);</div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_constraints; ++i) {</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_constraint_proto.html">MPConstraintProto</a>& mp_constraint = mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a1a8302446f7835e502a5aced4f29b3bf">constraint</a>(i);</div>
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<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> </div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> : mp_constraint.<a class="code hl_function" href="classoperations__research_1_1_m_p_constraint_proto.html#a422ccbcb51f6edc2f80ffe7cd7ccacb7">var_index</a>()) {</div>
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> <span class="keywordflow">if</span> (!mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>).<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a90a6759a08c3d72c4193a0a75aa581bc">is_integer</a>()) {</div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> var_to_constraints[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>].push_back(i);</div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> constraint_to_num_non_integer[i]++;</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> }</div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> <span class="keywordflow">if</span> (constraint_to_num_non_integer[i] == 1) {</div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> constraint_queue.push_back(i);</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> }</div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(1) << <span class="stringliteral">"Initial constraint queue: "</span> << constraint_queue.size() << <span class="stringliteral">" / "</span></div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> << num_constraints;</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="keywordtype">int</span> num_detected = 0;</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> <span class="keywordtype">double</span> max_scaling = 0.0;</div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> <span class="keyword">auto</span> scale_and_mark_as_integer = [&](<span class="keywordtype">int</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <span class="keywordtype">double</span> scaling) <span class="keyword">mutable</span> {</div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> <a class="code hl_define" href="base_2logging_8h.html#ab25e01a2942b821d66371fc68d53f2eb">CHECK_NE</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, -1);</div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>).<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a90a6759a08c3d72c4193a0a75aa581bc">is_integer</a>());</div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> <a class="code hl_define" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(var_scaling[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>], 1.0);</div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> <span class="keywordflow">if</span> (scaling != 1.0) {</div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(2) << <span class="stringliteral">"Scaled "</span> << <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> << <span class="stringliteral">" by "</span> << scaling;</div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> }</div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> </div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> ++num_detected;</div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> max_scaling = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(max_scaling, scaling);</div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> </div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> <span class="comment">// Scale the variable right away and mark it as implied integer.</span></div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> <span class="comment">// Note that the constraints will be scaled later.</span></div>
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<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> var_scaling[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>] = scaling;</div>
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<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a6255cadc7041d64f5e850a5e3786b3fd">mutable_variable</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>)-><a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a03ba55fe410af563250a79463d9eb7c6">set_is_integer</a>(<span class="keyword">true</span>);</div>
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<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> </div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> <span class="comment">// Update the queue of constraints with a single non-integer.</span></div>
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<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> ct_index : var_to_constraints[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>]) {</div>
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<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> constraint_to_num_non_integer[ct_index]--;</div>
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<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> <span class="keywordflow">if</span> (constraint_to_num_non_integer[ct_index] == 1) {</div>
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<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> constraint_queue.push_back(ct_index);</div>
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<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> }</div>
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<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> }</div>
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<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> };</div>
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<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> </div>
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<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> <span class="keywordtype">int</span> num_fail_due_to_rhs = 0;</div>
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<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> <span class="keywordtype">int</span> num_fail_due_to_large_multiplier = 0;</div>
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<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span> <span class="keywordtype">int</span> num_processed_constraints = 0;</div>
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<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> <span class="keywordflow">while</span> (!constraint_queue.empty()) {</div>
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<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> <span class="keyword">const</span> <span class="keywordtype">int</span> top_ct_index = constraint_queue.back();</div>
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<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> constraint_queue.pop_back();</div>
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<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> </div>
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<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> <span class="comment">// The non integer variable was already made integer by one other</span></div>
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<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> <span class="comment">// constraint.</span></div>
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<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> <span class="keywordflow">if</span> (constraint_to_num_non_integer[top_ct_index] == 0) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> </div>
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<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> <span class="comment">// Ignore non-equality here.</span></div>
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<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_constraint_proto.html">MPConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> = mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a1a8302446f7835e502a5aced4f29b3bf">constraint</a>(top_ct_index);</div>
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<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.lower_bound() + tolerance < <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.upper_bound()) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> </div>
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<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> ++num_processed_constraints;</div>
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<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> </div>
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<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> <span class="comment">// This will be set to the unique non-integer term of this constraint.</span></div>
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<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = -1;</div>
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<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> <span class="keywordtype">double</span> var_coeff;</div>
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<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> </div>
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<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> <span class="comment">// We are looking for a "multiplier" so that the unique non-integer term</span></div>
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<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> <span class="comment">// in this constraint (i.e. var * var_coeff) times this multiplier is an</span></div>
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<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> <span class="comment">// integer.</span></div>
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<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> <span class="comment">// If this is set to zero or becomes too large, we fail to detect a new</span></div>
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<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> <span class="comment">// implied integer and ignore this constraint.</span></div>
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<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> <span class="keywordtype">double</span> multiplier = 1.0;</div>
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<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> <span class="keyword">const</span> <span class="keywordtype">double</span> max_multiplier = 1e4;</div>
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<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> </div>
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<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index().size(); ++i) {</div>
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<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> <span class="keywordflow">if</span> (!mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index(i)).<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a90a6759a08c3d72c4193a0a75aa581bc">is_integer</a>()) {</div>
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<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> <a class="code hl_define" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, -1);</div>
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<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index(i);</div>
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<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> var_coeff = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.coefficient(i);</div>
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<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> <span class="comment">// This actually compute the smallest multiplier to make all other</span></div>
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<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> <span class="comment">// terms in the constraint integer.</span></div>
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<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> <span class="keyword">const</span> <span class="keywordtype">double</span> coeff =</div>
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<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> multiplier * <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.coefficient(i) / var_scaling[<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index(i)];</div>
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<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> multiplier *=</div>
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<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#af8b326626fb8ca0efd32ff0564d35731">FindRationalFactor</a>(coeff, <span class="comment">/*limit=*/</span>100, multiplier * tolerance);</div>
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<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> <span class="keywordflow">if</span> (multiplier == 0 || multiplier > max_multiplier) {</div>
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<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> }</div>
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<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> }</div>
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<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> }</div>
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<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> </div>
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<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> <span class="keywordflow">if</span> (multiplier == 0 || multiplier > max_multiplier) {</div>
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<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> ++num_fail_due_to_large_multiplier;</div>
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<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> }</div>
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<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> </div>
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<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span> <span class="comment">// These "rhs" fail could be handled by shifting the variable.</span></div>
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<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> <span class="keyword">const</span> <span class="keywordtype">double</span> rhs = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.lower_bound();</div>
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<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span> <span class="keywordflow">if</span> (std::abs(std::round(rhs * multiplier) - rhs * multiplier) ></div>
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<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> tolerance * multiplier) {</div>
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<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> ++num_fail_due_to_rhs;</div>
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<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span> }</div>
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<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> </div>
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<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> <span class="comment">// We want to multiply the variable so that it is integer. We know that</span></div>
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<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> <span class="comment">// coeff * multiplier is an integer, so we just multiply by that.</span></div>
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<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> <span class="comment">// But if a variable appear in more than one equality, we want to find the</span></div>
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<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> <span class="comment">// smallest integrality factor! See diameterc-msts-v40a100d5i.mps</span></div>
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<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span> <span class="comment">// for an instance of this.</span></div>
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<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> <span class="keywordtype">double</span> best_scaling = std::abs(var_coeff * multiplier);</div>
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<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> ct_index : var_to_constraints[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>]) {</div>
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<div class="line"><a id="l00365" name="l00365"></a><span class="lineno"> 365</span> <span class="keywordflow">if</span> (ct_index == top_ct_index) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span> <span class="keywordflow">if</span> (constraint_to_num_non_integer[ct_index] != 1) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00367" name="l00367"></a><span class="lineno"> 367</span> </div>
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<div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span> <span class="comment">// Ignore non-equality here.</span></div>
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<div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_constraint_proto.html">MPConstraintProto</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> = mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a1a8302446f7835e502a5aced4f29b3bf">constraint</a>(top_ct_index);</div>
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<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.lower_bound() + tolerance < <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.upper_bound()) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span> </div>
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<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span> <span class="keyword">const</span> <span class="keywordtype">double</span> multiplier = GetIntegralityMultiplier(</div>
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<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> *mp_model, var_scaling, <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, ct_index, tolerance);</div>
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<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span> <span class="keywordflow">if</span> (multiplier != 0.0 && multiplier < best_scaling) {</div>
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<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> best_scaling = multiplier;</div>
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<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> }</div>
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<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> }</div>
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<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> </div>
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<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> scale_and_mark_as_integer(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, best_scaling);</div>
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<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> }</div>
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<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> </div>
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<div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> <span class="comment">// Process continuous variables that only appear as the unique non integer</span></div>
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<div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span> <span class="comment">// in a set of non-equality constraints.</span></div>
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<div class="line"><a id="l00384" name="l00384"></a><span class="lineno"> 384</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00385" name="l00385"></a><span class="lineno"> 385</span> <span class="comment">// Note that turning to integer such variable cannot in turn trigger new</span></div>
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<div class="line"><a id="l00386" name="l00386"></a><span class="lineno"> 386</span> <span class="comment">// integer detection, so there is no point doing that in a loop.</span></div>
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<div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span> <span class="keywordtype">int</span> num_in_inequalities = 0;</div>
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<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"> 388</span> <span class="keywordtype">int</span> num_to_be_handled = 0;</div>
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<div class="line"><a id="l00389" name="l00389"></a><span class="lineno"> 389</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = 0; <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> < num_variables; ++<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div>
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<div class="line"><a id="l00390" name="l00390"></a><span class="lineno"> 390</span> <span class="keywordflow">if</span> (mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>).<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a90a6759a08c3d72c4193a0a75aa581bc">is_integer</a>()) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"> 391</span> </div>
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<div class="line"><a id="l00392" name="l00392"></a><span class="lineno"> 392</span> <span class="comment">// This should be presolved and not happen.</span></div>
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<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span> <span class="keywordflow">if</span> (var_to_constraints[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>].empty()) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span> </div>
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<div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span> <span class="keywordtype">bool</span> ok = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00396" name="l00396"></a><span class="lineno"> 396</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> ct_index : var_to_constraints[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>]) {</div>
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<div class="line"><a id="l00397" name="l00397"></a><span class="lineno"> 397</span> <span class="keywordflow">if</span> (constraint_to_num_non_integer[ct_index] != 1) {</div>
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<div class="line"><a id="l00398" name="l00398"></a><span class="lineno"> 398</span> ok = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00399" name="l00399"></a><span class="lineno"> 399</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00400" name="l00400"></a><span class="lineno"> 400</span> }</div>
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<div class="line"><a id="l00401" name="l00401"></a><span class="lineno"> 401</span> }</div>
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<div class="line"><a id="l00402" name="l00402"></a><span class="lineno"> 402</span> <span class="keywordflow">if</span> (!ok) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00403" name="l00403"></a><span class="lineno"> 403</span> </div>
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<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</span> std::vector<double> scaled_coeffs;</div>
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<div class="line"><a id="l00405" name="l00405"></a><span class="lineno"> 405</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> ct_index : var_to_constraints[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>]) {</div>
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<div class="line"><a id="l00406" name="l00406"></a><span class="lineno"> 406</span> <span class="keyword">const</span> <span class="keywordtype">double</span> multiplier = GetIntegralityMultiplier(</div>
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<div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span> *mp_model, var_scaling, <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, ct_index, tolerance);</div>
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<div class="line"><a id="l00408" name="l00408"></a><span class="lineno"> 408</span> <span class="keywordflow">if</span> (multiplier == 0.0) {</div>
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<div class="line"><a id="l00409" name="l00409"></a><span class="lineno"> 409</span> ok = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00410" name="l00410"></a><span class="lineno"> 410</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> }</div>
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<div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> scaled_coeffs.push_back(multiplier);</div>
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<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</span> }</div>
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<div class="line"><a id="l00414" name="l00414"></a><span class="lineno"> 414</span> <span class="keywordflow">if</span> (!ok) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span> </div>
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<div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span> <span class="comment">// The situation is a bit tricky here, we have a bunch of coeffs c_i, and we</span></div>
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<div class="line"><a id="l00417" name="l00417"></a><span class="lineno"> 417</span> <span class="comment">// know that X * c_i can take integer value without changing the constraint</span></div>
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|
<div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> <span class="comment">// i meaning.</span></div>
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|
<div class="line"><a id="l00419" name="l00419"></a><span class="lineno"> 419</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00420" name="l00420"></a><span class="lineno"> 420</span> <span class="comment">// For now we take the min, and scale only if all c_i / min are integer.</span></div>
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<div class="line"><a id="l00421" name="l00421"></a><span class="lineno"> 421</span> <span class="keywordtype">double</span> scaling = scaled_coeffs[0];</div>
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<div class="line"><a id="l00422" name="l00422"></a><span class="lineno"> 422</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">double</span> c : scaled_coeffs) {</div>
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<div class="line"><a id="l00423" name="l00423"></a><span class="lineno"> 423</span> scaling = <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(scaling, c);</div>
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<div class="line"><a id="l00424" name="l00424"></a><span class="lineno"> 424</span> }</div>
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<div class="line"><a id="l00425" name="l00425"></a><span class="lineno"> 425</span> <a class="code hl_define" href="base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6">CHECK_GT</a>(scaling, 0.0);</div>
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<div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">double</span> c : scaled_coeffs) {</div>
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<div class="line"><a id="l00427" name="l00427"></a><span class="lineno"> 427</span> <span class="keyword">const</span> <span class="keywordtype">double</span> fraction = c / scaling;</div>
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<div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</span> <span class="keywordflow">if</span> (std::abs(std::round(fraction) - fraction) > tolerance) {</div>
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<div class="line"><a id="l00429" name="l00429"></a><span class="lineno"> 429</span> ok = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00430" name="l00430"></a><span class="lineno"> 430</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00431" name="l00431"></a><span class="lineno"> 431</span> }</div>
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|
<div class="line"><a id="l00432" name="l00432"></a><span class="lineno"> 432</span> }</div>
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<div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span> <span class="keywordflow">if</span> (!ok) {</div>
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<div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</span> <span class="comment">// TODO(user): be smarter! we should be able to handle these cases.</span></div>
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|
<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span> ++num_to_be_handled;</div>
|
|
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a id="l00437" name="l00437"></a><span class="lineno"> 437</span> }</div>
|
|
<div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span> </div>
|
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<div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span> <span class="comment">// Tricky, we also need the bound of the scaled variable to be integer.</span></div>
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|
<div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code hl_variable" href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a> : {mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>).<a class="code hl_variable" href="gscip__solver_8cc.html#a1e2f9a2352c1d9a6cada9544898fceec">lower_bound</a>(),</div>
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|
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span> mp_model-><a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>).<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a5158072d27a176fc38524893183d6527">upper_bound</a>()}) {</div>
|
|
<div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span> <span class="keywordflow">if</span> (!std::isfinite(<a class="code hl_variable" href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a>)) <span class="keywordflow">continue</span>;</div>
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|
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span> <span class="keywordflow">if</span> (std::abs(std::round(<a class="code hl_variable" href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a> * scaling) - <a class="code hl_variable" href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a> * scaling) ></div>
|
|
<div class="line"><a id="l00444" name="l00444"></a><span class="lineno"> 444</span> tolerance * scaling) {</div>
|
|
<div class="line"><a id="l00445" name="l00445"></a><span class="lineno"> 445</span> ok = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00446" name="l00446"></a><span class="lineno"> 446</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00447" name="l00447"></a><span class="lineno"> 447</span> }</div>
|
|
<div class="line"><a id="l00448" name="l00448"></a><span class="lineno"> 448</span> }</div>
|
|
<div class="line"><a id="l00449" name="l00449"></a><span class="lineno"> 449</span> <span class="keywordflow">if</span> (!ok) {</div>
|
|
<div class="line"><a id="l00450" name="l00450"></a><span class="lineno"> 450</span> <span class="comment">// TODO(user): If we scale more we migth be able to turn it into an</span></div>
|
|
<div class="line"><a id="l00451" name="l00451"></a><span class="lineno"> 451</span> <span class="comment">// integer.</span></div>
|
|
<div class="line"><a id="l00452" name="l00452"></a><span class="lineno"> 452</span> ++num_to_be_handled;</div>
|
|
<div class="line"><a id="l00453" name="l00453"></a><span class="lineno"> 453</span> <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a id="l00454" name="l00454"></a><span class="lineno"> 454</span> }</div>
|
|
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno"> 455</span> </div>
|
|
<div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span> ++num_in_inequalities;</div>
|
|
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span> scale_and_mark_as_integer(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, scaling);</div>
|
|
<div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span> }</div>
|
|
<div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(1) << <span class="stringliteral">"num_new_integer: "</span> << num_detected</div>
|
|
<div class="line"><a id="l00460" name="l00460"></a><span class="lineno"> 460</span> << <span class="stringliteral">" num_processed_constraints: "</span> << num_processed_constraints</div>
|
|
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span> << <span class="stringliteral">" num_rhs_fail: "</span> << num_fail_due_to_rhs</div>
|
|
<div class="line"><a id="l00462" name="l00462"></a><span class="lineno"> 462</span> << <span class="stringliteral">" num_multiplier_fail: "</span> << num_fail_due_to_large_multiplier;</div>
|
|
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span> </div>
|
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<div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</span> <span class="keywordflow">if</span> (num_to_be_handled > 0) {</div>
|
|
<div class="line"><a id="l00465" name="l00465"></a><span class="lineno"> 465</span> <a class="code hl_define" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger, <span class="stringliteral">"Missed "</span>, num_to_be_handled,</div>
|
|
<div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> <span class="stringliteral">" potential implied integer."</span>);</div>
|
|
<div class="line"><a id="l00467" name="l00467"></a><span class="lineno"> 467</span> }</div>
|
|
<div class="line"><a id="l00468" name="l00468"></a><span class="lineno"> 468</span> </div>
|
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<div class="line"><a id="l00469" name="l00469"></a><span class="lineno"> 469</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_integers = initial_num_integers + num_detected;</div>
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|
<div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span> <a class="code hl_define" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger, <span class="stringliteral">"Num integers: "</span>, num_integers, <span class="stringliteral">"/"</span>, num_variables,</div>
|
|
<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span> <span class="stringliteral">" (implied: "</span>, num_detected,</div>
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<div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span> <span class="stringliteral">" in_inequalities: "</span>, num_in_inequalities,</div>
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<div class="line"><a id="l00473" name="l00473"></a><span class="lineno"> 473</span> <span class="stringliteral">" max_scaling: "</span>, max_scaling, <span class="stringliteral">")"</span>,</div>
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<div class="line"><a id="l00474" name="l00474"></a><span class="lineno"> 474</span> (num_integers == num_variables ? <span class="stringliteral">" [IP] "</span> : <span class="stringliteral">" [MIP] "</span>));</div>
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<div class="line"><a id="l00475" name="l00475"></a><span class="lineno"> 475</span> </div>
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<div class="line"><a id="l00476" name="l00476"></a><span class="lineno"> 476</span> ApplyVarScaling(var_scaling, mp_model);</div>
|
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<div class="line"><a id="l00477" name="l00477"></a><span class="lineno"> 477</span> <span class="keywordflow">return</span> var_scaling;</div>
|
|
<div class="line"><a id="l00478" name="l00478"></a><span class="lineno"> 478</span>}</div>
|
|
<div class="line"><a id="l00479" name="l00479"></a><span class="lineno"> 479</span> </div>
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|
<div class="line"><a id="l00480" name="l00480"></a><span class="lineno"> 480</span><span class="keyword">namespace </span>{</div>
|
|
<div class="line"><a id="l00481" name="l00481"></a><span class="lineno"> 481</span> </div>
|
|
<div class="line"><a id="l00482" name="l00482"></a><span class="lineno"> 482</span><span class="comment">// We use a class to reuse the temporary memory.</span></div>
|
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<div class="line"><a id="l00483" name="l00483"></a><span class="lineno"> 483</span><span class="keyword">struct </span>ConstraintScaler {</div>
|
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<div class="line"><a id="l00484" name="l00484"></a><span class="lineno"> 484</span> <span class="comment">// Scales an individual constraint.</span></div>
|
|
<div class="line"><a id="l00485" name="l00485"></a><span class="lineno"> 485</span> ConstraintProto* AddConstraint(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_model_proto.html">MPModelProto</a>& mp_model,</div>
|
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<div class="line"><a id="l00486" name="l00486"></a><span class="lineno"> 486</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_constraint_proto.html">MPConstraintProto</a>& mp_constraint,</div>
|
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<div class="line"><a id="l00487" name="l00487"></a><span class="lineno"> 487</span> CpModelProto* cp_model);</div>
|
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<div class="line"><a id="l00488" name="l00488"></a><span class="lineno"> 488</span> </div>
|
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<div class="line"><a id="l00489" name="l00489"></a><span class="lineno"><a class="line" href="sat_2lp__utils_8cc.html#a2a1a02478d02cd8e42a1afece079d4a2"> 489</a></span> <span class="keywordtype">double</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a2a1a02478d02cd8e42a1afece079d4a2">max_relative_coeff_error</a> = 0.0;</div>
|
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<div class="line"><a id="l00490" name="l00490"></a><span class="lineno"><a class="line" href="sat_2lp__utils_8cc.html#ac353d235bf529bb3a9c0830da2efa892"> 490</a></span> <span class="keywordtype">double</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ac353d235bf529bb3a9c0830da2efa892">max_relative_rhs_error</a> = 0.0;</div>
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<div class="line"><a id="l00491" name="l00491"></a><span class="lineno"><a class="line" href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a"> 491</a></span> <span class="keywordtype">double</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a">max_scaling_factor</a> = 0.0;</div>
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<div class="line"><a id="l00492" name="l00492"></a><span class="lineno"> 492</span> </div>
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<div class="line"><a id="l00493" name="l00493"></a><span class="lineno"><a class="line" href="sat_2lp__utils_8cc.html#a6585434cd23846627340ae066aa546f6"> 493</a></span> <span class="keywordtype">double</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a6585434cd23846627340ae066aa546f6">wanted_precision</a> = 1e-6;</div>
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<div class="line"><a id="l00494" name="l00494"></a><span class="lineno"><a class="line" href="sat_2lp__utils_8cc.html#a29fe8faef79a8a488024bae1a14f9e37"> 494</a></span> int64_t <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a29fe8faef79a8a488024bae1a14f9e37">scaling_target</a> = int64_t{1} << 50;</div>
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<div class="line"><a id="l00495" name="l00495"></a><span class="lineno"><a class="line" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d"> 495</a></span> std::vector<int> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a>;</div>
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<div class="line"><a id="l00496" name="l00496"></a><span class="lineno"><a class="line" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf"> 496</a></span> std::vector<double> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>;</div>
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<div class="line"><a id="l00497" name="l00497"></a><span class="lineno"><a class="line" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0"> 497</a></span> std::vector<double> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>;</div>
|
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<div class="line"><a id="l00498" name="l00498"></a><span class="lineno"><a class="line" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3"> 498</a></span> std::vector<double> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>;</div>
|
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<div class="line"><a id="l00499" name="l00499"></a><span class="lineno"> 499</span>};</div>
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<div class="line"><a id="l00500" name="l00500"></a><span class="lineno"> 500</span> </div>
|
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<div class="line"><a id="l00501" name="l00501"></a><span class="lineno"> 501</span><span class="keyword">namespace </span>{</div>
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<div class="line"><a id="l00502" name="l00502"></a><span class="lineno"> 502</span> </div>
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<div class="line"><a id="l00503" name="l00503"></a><span class="lineno"> 503</span><span class="keywordtype">double</span> FindFractionalScaling(<span class="keyword">const</span> std::vector<double>& <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>,</div>
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<div class="line"><a id="l00504" name="l00504"></a><span class="lineno"> 504</span> <span class="keywordtype">double</span> tolerance) {</div>
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<div class="line"><a id="l00505" name="l00505"></a><span class="lineno"> 505</span> <span class="keywordtype">double</span> multiplier = 1.0;</div>
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<div class="line"><a id="l00506" name="l00506"></a><span class="lineno"> 506</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">double</span> coeff : <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>) {</div>
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<div class="line"><a id="l00507" name="l00507"></a><span class="lineno"> 507</span> multiplier *=</div>
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<div class="line"><a id="l00508" name="l00508"></a><span class="lineno"> 508</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#af8b326626fb8ca0efd32ff0564d35731">FindRationalFactor</a>(coeff, <span class="comment">/*limit=*/</span>1e8, multiplier * tolerance);</div>
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<div class="line"><a id="l00509" name="l00509"></a><span class="lineno"> 509</span> <span class="keywordflow">if</span> (multiplier == 0.0) <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00510" name="l00510"></a><span class="lineno"> 510</span> }</div>
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<div class="line"><a id="l00511" name="l00511"></a><span class="lineno"> 511</span> <span class="keywordflow">return</span> multiplier;</div>
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<div class="line"><a id="l00512" name="l00512"></a><span class="lineno"> 512</span>}</div>
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<div class="line"><a id="l00513" name="l00513"></a><span class="lineno"> 513</span> </div>
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<div class="line"><a id="l00514" name="l00514"></a><span class="lineno"> 514</span>} <span class="comment">// namespace</span></div>
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<div class="line"><a id="l00515" name="l00515"></a><span class="lineno"> 515</span> </div>
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<div class="line"><a id="l00516" name="l00516"></a><span class="lineno"> 516</span>ConstraintProto* ConstraintScaler::AddConstraint(</div>
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<div class="line"><a id="l00517" name="l00517"></a><span class="lineno"> 517</span> <span class="keyword">const</span> MPModelProto& mp_model, <span class="keyword">const</span> MPConstraintProto& mp_constraint,</div>
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<div class="line"><a id="l00518" name="l00518"></a><span class="lineno"> 518</span> CpModelProto* cp_model) {</div>
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<div class="line"><a id="l00519" name="l00519"></a><span class="lineno"> 519</span> <span class="keywordflow">if</span> (mp_constraint.lower_bound() == -<a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a> &&</div>
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<div class="line"><a id="l00520" name="l00520"></a><span class="lineno"> 520</span> mp_constraint.upper_bound() == <a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a>) {</div>
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<div class="line"><a id="l00521" name="l00521"></a><span class="lineno"> 521</span> <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div>
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<div class="line"><a id="l00522" name="l00522"></a><span class="lineno"> 522</span> }</div>
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<div class="line"><a id="l00523" name="l00523"></a><span class="lineno"> 523</span> </div>
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<div class="line"><a id="l00524" name="l00524"></a><span class="lineno"> 524</span> <span class="keyword">auto</span>* constraint = cp_model->add_constraints();</div>
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<div class="line"><a id="l00525" name="l00525"></a><span class="lineno"> 525</span> constraint->set_name(mp_constraint.name());</div>
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<div class="line"><a id="l00526" name="l00526"></a><span class="lineno"> 526</span> <span class="keyword">auto</span>* arg = constraint->mutable_linear();</div>
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<div class="line"><a id="l00527" name="l00527"></a><span class="lineno"> 527</span> </div>
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<div class="line"><a id="l00528" name="l00528"></a><span class="lineno"> 528</span> <span class="comment">// First scale the coefficients of the constraints so that the constraint</span></div>
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<div class="line"><a id="l00529" name="l00529"></a><span class="lineno"> 529</span> <span class="comment">// sum can always be computed without integer overflow.</span></div>
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<div class="line"><a id="l00530" name="l00530"></a><span class="lineno"> 530</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a>.clear();</div>
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<div class="line"><a id="l00531" name="l00531"></a><span class="lineno"> 531</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.clear();</div>
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<div class="line"><a id="l00532" name="l00532"></a><span class="lineno"> 532</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>.clear();</div>
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<div class="line"><a id="l00533" name="l00533"></a><span class="lineno"> 533</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>.clear();</div>
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<div class="line"><a id="l00534" name="l00534"></a><span class="lineno"> 534</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_coeffs = mp_constraint.coefficient_size();</div>
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<div class="line"><a id="l00535" name="l00535"></a><span class="lineno"> 535</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_coeffs; ++i) {</div>
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<div class="line"><a id="l00536" name="l00536"></a><span class="lineno"> 536</span> <span class="keyword">const</span> <span class="keyword">auto</span>& var_proto = cp_model->variables(mp_constraint.var_index(i));</div>
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<div class="line"><a id="l00537" name="l00537"></a><span class="lineno"> 537</span> <span class="keyword">const</span> int64_t lb = var_proto.domain(0);</div>
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<div class="line"><a id="l00538" name="l00538"></a><span class="lineno"> 538</span> <span class="keyword">const</span> int64_t ub = var_proto.domain(var_proto.domain_size() - 1);</div>
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<div class="line"><a id="l00539" name="l00539"></a><span class="lineno"> 539</span> <span class="keywordflow">if</span> (lb == 0 && ub == 0) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00540" name="l00540"></a><span class="lineno"> 540</span> </div>
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<div class="line"><a id="l00541" name="l00541"></a><span class="lineno"> 541</span> <span class="keyword">const</span> <span class="keywordtype">double</span> coeff = mp_constraint.coefficient(i);</div>
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<div class="line"><a id="l00542" name="l00542"></a><span class="lineno"> 542</span> <span class="keywordflow">if</span> (coeff == 0.0) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00543" name="l00543"></a><span class="lineno"> 543</span> </div>
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<div class="line"><a id="l00544" name="l00544"></a><span class="lineno"> 544</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a>.push_back(mp_constraint.var_index(i));</div>
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<div class="line"><a id="l00545" name="l00545"></a><span class="lineno"> 545</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.push_back(coeff);</div>
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<div class="line"><a id="l00546" name="l00546"></a><span class="lineno"> 546</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>.push_back(lb);</div>
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<div class="line"><a id="l00547" name="l00547"></a><span class="lineno"> 547</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>.push_back(ub);</div>
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<div class="line"><a id="l00548" name="l00548"></a><span class="lineno"> 548</span> }</div>
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<div class="line"><a id="l00549" name="l00549"></a><span class="lineno"> 549</span> </div>
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<div class="line"><a id="l00550" name="l00550"></a><span class="lineno"> 550</span> <span class="comment">// We compute the worst case error relative to the magnitude of the bounds.</span></div>
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<div class="line"><a id="l00551" name="l00551"></a><span class="lineno"> 551</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> lb = mp_constraint.lower_bound();</div>
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<div class="line"><a id="l00552" name="l00552"></a><span class="lineno"> 552</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> ub = mp_constraint.upper_bound();</div>
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<div class="line"><a id="l00553" name="l00553"></a><span class="lineno"> 553</span> <span class="keyword">const</span> <span class="keywordtype">double</span> ct_norm = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(1.0, <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(std::abs(lb), std::abs(ub)));</div>
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<div class="line"><a id="l00554" name="l00554"></a><span class="lineno"> 554</span> </div>
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<div class="line"><a id="l00555" name="l00555"></a><span class="lineno"> 555</span> <span class="keywordtype">double</span> scaling_factor = <a class="code hl_function" href="namespaceoperations__research.html#aae3359f1c2367d44e5cf9be5d5abc89f">GetBestScalingOfDoublesToInt64</a>(</div>
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<div class="line"><a id="l00556" name="l00556"></a><span class="lineno"> 556</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a29fe8faef79a8a488024bae1a14f9e37">scaling_target</a>);</div>
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<div class="line"><a id="l00557" name="l00557"></a><span class="lineno"> 557</span> <span class="keywordflow">if</span> (scaling_factor == 0.0) {</div>
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<div class="line"><a id="l00558" name="l00558"></a><span class="lineno"> 558</span> <span class="comment">// TODO(user): Report error properly instead of ignoring constraint. Note</span></div>
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<div class="line"><a id="l00559" name="l00559"></a><span class="lineno"> 559</span> <span class="comment">// however that this likely indicate a coefficient of inf in the constraint,</span></div>
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<div class="line"><a id="l00560" name="l00560"></a><span class="lineno"> 560</span> <span class="comment">// so we should probably abort before reaching here.</span></div>
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<div class="line"><a id="l00561" name="l00561"></a><span class="lineno"> 561</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(DFATAL) << <span class="stringliteral">"Scaling factor of zero while scaling constraint: "</span></div>
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<div class="line"><a id="l00562" name="l00562"></a><span class="lineno"> 562</span> << mp_constraint.ShortDebugString();</div>
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<div class="line"><a id="l00563" name="l00563"></a><span class="lineno"> 563</span> <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div>
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<div class="line"><a id="l00564" name="l00564"></a><span class="lineno"> 564</span> }</div>
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<div class="line"><a id="l00565" name="l00565"></a><span class="lineno"> 565</span> </div>
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<div class="line"><a id="l00566" name="l00566"></a><span class="lineno"> 566</span> <span class="comment">// Returns the smallest factor of the form 2^i that gives us a relative sum</span></div>
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<div class="line"><a id="l00567" name="l00567"></a><span class="lineno"> 567</span> <span class="comment">// error of wanted_precision and still make sure we will have no integer</span></div>
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<div class="line"><a id="l00568" name="l00568"></a><span class="lineno"> 568</span> <span class="comment">// overflow.</span></div>
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<div class="line"><a id="l00569" name="l00569"></a><span class="lineno"> 569</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00570" name="l00570"></a><span class="lineno"> 570</span> <span class="comment">// TODO(user): Make this faster.</span></div>
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<div class="line"><a id="l00571" name="l00571"></a><span class="lineno"> 571</span> <span class="keywordtype">double</span> x = <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(scaling_factor, 1.0);</div>
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<div class="line"><a id="l00572" name="l00572"></a><span class="lineno"> 572</span> <span class="keywordtype">double</span> relative_coeff_error;</div>
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<div class="line"><a id="l00573" name="l00573"></a><span class="lineno"> 573</span> <span class="keywordtype">double</span> scaled_sum_error;</div>
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<div class="line"><a id="l00574" name="l00574"></a><span class="lineno"> 574</span> <span class="keywordflow">for</span> (; x <= scaling_factor; x *= 2) {</div>
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<div class="line"><a id="l00575" name="l00575"></a><span class="lineno"> 575</span> <a class="code hl_function" href="namespaceoperations__research.html#a46f21c3da23685e58b31d880b2144458">ComputeScalingErrors</a>(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>, x,</div>
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<div class="line"><a id="l00576" name="l00576"></a><span class="lineno"> 576</span> &relative_coeff_error, &scaled_sum_error);</div>
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<div class="line"><a id="l00577" name="l00577"></a><span class="lineno"> 577</span> <span class="keywordflow">if</span> (scaled_sum_error < <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a6585434cd23846627340ae066aa546f6">wanted_precision</a> * x * ct_norm) <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00578" name="l00578"></a><span class="lineno"> 578</span> }</div>
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<div class="line"><a id="l00579" name="l00579"></a><span class="lineno"> 579</span> scaling_factor = x;</div>
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<div class="line"><a id="l00580" name="l00580"></a><span class="lineno"> 580</span> </div>
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<div class="line"><a id="l00581" name="l00581"></a><span class="lineno"> 581</span> <span class="comment">// Because we deal with an approximate input, scaling with a power of 2 might</span></div>
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<div class="line"><a id="l00582" name="l00582"></a><span class="lineno"> 582</span> <span class="comment">// not be the best choice. It is also possible user used rational coeff and</span></div>
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<div class="line"><a id="l00583" name="l00583"></a><span class="lineno"> 583</span> <span class="comment">// then converted them to double (1/2, 1/3, 4/5, etc...). This scaling will</span></div>
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<div class="line"><a id="l00584" name="l00584"></a><span class="lineno"> 584</span> <span class="comment">// recover such rational input and might result in a smaller overall</span></div>
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<div class="line"><a id="l00585" name="l00585"></a><span class="lineno"> 585</span> <span class="comment">// coefficient which is good.</span></div>
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<div class="line"><a id="l00586" name="l00586"></a><span class="lineno"> 586</span> <span class="keyword">const</span> <span class="keywordtype">double</span> integer_factor = FindFractionalScaling(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, 1e-8);</div>
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<div class="line"><a id="l00587" name="l00587"></a><span class="lineno"> 587</span> <span class="keywordflow">if</span> (integer_factor != 0 && integer_factor < scaling_factor) {</div>
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<div class="line"><a id="l00588" name="l00588"></a><span class="lineno"> 588</span> <a class="code hl_function" href="namespaceoperations__research.html#a46f21c3da23685e58b31d880b2144458">ComputeScalingErrors</a>(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>, x,</div>
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<div class="line"><a id="l00589" name="l00589"></a><span class="lineno"> 589</span> &relative_coeff_error, &scaled_sum_error);</div>
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<div class="line"><a id="l00590" name="l00590"></a><span class="lineno"> 590</span> <span class="keywordflow">if</span> (scaled_sum_error < <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a6585434cd23846627340ae066aa546f6">wanted_precision</a> * integer_factor * ct_norm) {</div>
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<div class="line"><a id="l00591" name="l00591"></a><span class="lineno"> 591</span> scaling_factor = integer_factor;</div>
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<div class="line"><a id="l00592" name="l00592"></a><span class="lineno"> 592</span> }</div>
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<div class="line"><a id="l00593" name="l00593"></a><span class="lineno"> 593</span> }</div>
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<div class="line"><a id="l00594" name="l00594"></a><span class="lineno"> 594</span> </div>
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<div class="line"><a id="l00595" name="l00595"></a><span class="lineno"> 595</span> <span class="keyword">const</span> int64_t gcd = <a class="code hl_function" href="namespaceoperations__research.html#aae2e6ed909e0cd5f240b885800f55c87">ComputeGcdOfRoundedDoubles</a>(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, scaling_factor);</div>
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<div class="line"><a id="l00596" name="l00596"></a><span class="lineno"> 596</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a2a1a02478d02cd8e42a1afece079d4a2">max_relative_coeff_error</a> =</div>
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<div class="line"><a id="l00597" name="l00597"></a><span class="lineno"> 597</span> <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(relative_coeff_error, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a2a1a02478d02cd8e42a1afece079d4a2">max_relative_coeff_error</a>);</div>
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<div class="line"><a id="l00598" name="l00598"></a><span class="lineno"> 598</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a">max_scaling_factor</a> = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(scaling_factor / gcd, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a">max_scaling_factor</a>);</div>
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<div class="line"><a id="l00599" name="l00599"></a><span class="lineno"> 599</span> </div>
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<div class="line"><a id="l00600" name="l00600"></a><span class="lineno"> 600</span> <span class="comment">// We do not relax the constraint bound if all variables are integer and</span></div>
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<div class="line"><a id="l00601" name="l00601"></a><span class="lineno"> 601</span> <span class="comment">// we made no error at all during our scaling.</span></div>
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<div class="line"><a id="l00602" name="l00602"></a><span class="lineno"> 602</span> <span class="keywordtype">bool</span> relax_bound = scaled_sum_error > 0;</div>
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<div class="line"><a id="l00603" name="l00603"></a><span class="lineno"> 603</span> </div>
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<div class="line"><a id="l00604" name="l00604"></a><span class="lineno"> 604</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.size(); ++i) {</div>
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<div class="line"><a id="l00605" name="l00605"></a><span class="lineno"> 605</span> <span class="keyword">const</span> <span class="keywordtype">double</span> scaled_value = <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>[i] * scaling_factor;</div>
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<div class="line"><a id="l00606" name="l00606"></a><span class="lineno"> 606</span> <span class="keyword">const</span> int64_t <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::round(scaled_value)) / gcd;</div>
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<div class="line"><a id="l00607" name="l00607"></a><span class="lineno"> 607</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> != 0) {</div>
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<div class="line"><a id="l00608" name="l00608"></a><span class="lineno"> 608</span> <span class="keywordflow">if</span> (!mp_model.variable(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a>[i]).is_integer()) {</div>
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<div class="line"><a id="l00609" name="l00609"></a><span class="lineno"> 609</span> relax_bound = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00610" name="l00610"></a><span class="lineno"> 610</span> }</div>
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<div class="line"><a id="l00611" name="l00611"></a><span class="lineno"> 611</span> arg->add_vars(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a>[i]);</div>
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<div class="line"><a id="l00612" name="l00612"></a><span class="lineno"> 612</span> arg->add_coeffs(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
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<div class="line"><a id="l00613" name="l00613"></a><span class="lineno"> 613</span> }</div>
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<div class="line"><a id="l00614" name="l00614"></a><span class="lineno"> 614</span> }</div>
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<div class="line"><a id="l00615" name="l00615"></a><span class="lineno"> 615</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ac353d235bf529bb3a9c0830da2efa892">max_relative_rhs_error</a> = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(</div>
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<div class="line"><a id="l00616" name="l00616"></a><span class="lineno"> 616</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ac353d235bf529bb3a9c0830da2efa892">max_relative_rhs_error</a>, scaled_sum_error / (scaling_factor * ct_norm));</div>
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<div class="line"><a id="l00617" name="l00617"></a><span class="lineno"> 617</span> </div>
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<div class="line"><a id="l00618" name="l00618"></a><span class="lineno"> 618</span> <span class="comment">// Add the constraint bounds. Because we are sure the scaled constraint fit</span></div>
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<div class="line"><a id="l00619" name="l00619"></a><span class="lineno"> 619</span> <span class="comment">// on an int64_t, if the scaled bounds are too large, the constraint is either</span></div>
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<div class="line"><a id="l00620" name="l00620"></a><span class="lineno"> 620</span> <span class="comment">// always true or always false.</span></div>
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<div class="line"><a id="l00621" name="l00621"></a><span class="lineno"> 621</span> <span class="keywordflow">if</span> (relax_bound) {</div>
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<div class="line"><a id="l00622" name="l00622"></a><span class="lineno"> 622</span> lb -= <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(std::abs(lb), 1.0) * <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a6585434cd23846627340ae066aa546f6">wanted_precision</a>;</div>
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<div class="line"><a id="l00623" name="l00623"></a><span class="lineno"> 623</span> }</div>
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<div class="line"><a id="l00624" name="l00624"></a><span class="lineno"> 624</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> scaled_lb = std::ceil(lb * scaling_factor);</div>
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<div class="line"><a id="l00625" name="l00625"></a><span class="lineno"> 625</span> <span class="keywordflow">if</span> (lb == <a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a> || scaled_lb >= <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::numeric_limits<int64_t>::max</a>()) {</div>
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<div class="line"><a id="l00626" name="l00626"></a><span class="lineno"> 626</span> <span class="comment">// Corner case: infeasible model.</span></div>
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<div class="line"><a id="l00627" name="l00627"></a><span class="lineno"> 627</span> arg->add_domain(<a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::numeric_limits<int64_t>::max</a>());</div>
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<div class="line"><a id="l00628" name="l00628"></a><span class="lineno"> 628</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (lb == -<a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a> ||</div>
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<div class="line"><a id="l00629" name="l00629"></a><span class="lineno"> 629</span> scaled_lb <= <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::numeric_limits<int64_t>::min</a>()) {</div>
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<div class="line"><a id="l00630" name="l00630"></a><span class="lineno"> 630</span> arg->add_domain(<a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::numeric_limits<int64_t>::min</a>());</div>
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<div class="line"><a id="l00631" name="l00631"></a><span class="lineno"> 631</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00632" name="l00632"></a><span class="lineno"> 632</span> arg->add_domain(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a29b96869d2a821cf1d2e6099e7a0f51b">CeilRatio</a>(IntegerValue(<span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(scaled_lb)),</div>
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<div class="line"><a id="l00633" name="l00633"></a><span class="lineno"> 633</span> IntegerValue(gcd))</div>
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<div class="line"><a id="l00634" name="l00634"></a><span class="lineno"> 634</span> .<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>());</div>
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<div class="line"><a id="l00635" name="l00635"></a><span class="lineno"> 635</span> }</div>
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<div class="line"><a id="l00636" name="l00636"></a><span class="lineno"> 636</span> </div>
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<div class="line"><a id="l00637" name="l00637"></a><span class="lineno"> 637</span> <span class="keywordflow">if</span> (relax_bound) {</div>
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<div class="line"><a id="l00638" name="l00638"></a><span class="lineno"> 638</span> ub += <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(std::abs(ub), 1.0) * <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a6585434cd23846627340ae066aa546f6">wanted_precision</a>;</div>
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<div class="line"><a id="l00639" name="l00639"></a><span class="lineno"> 639</span> }</div>
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<div class="line"><a id="l00640" name="l00640"></a><span class="lineno"> 640</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> scaled_ub = std::floor(ub * scaling_factor);</div>
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<div class="line"><a id="l00641" name="l00641"></a><span class="lineno"> 641</span> <span class="keywordflow">if</span> (ub == -<a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a> || scaled_ub <= <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::numeric_limits<int64_t>::min</a>()) {</div>
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|
<div class="line"><a id="l00642" name="l00642"></a><span class="lineno"> 642</span> <span class="comment">// Corner case: infeasible model.</span></div>
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<div class="line"><a id="l00643" name="l00643"></a><span class="lineno"> 643</span> arg->add_domain(<a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::numeric_limits<int64_t>::min</a>());</div>
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<div class="line"><a id="l00644" name="l00644"></a><span class="lineno"> 644</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ub == <a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a> ||</div>
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<div class="line"><a id="l00645" name="l00645"></a><span class="lineno"> 645</span> scaled_ub >= <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::numeric_limits<int64_t>::max</a>()) {</div>
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<div class="line"><a id="l00646" name="l00646"></a><span class="lineno"> 646</span> arg->add_domain(<a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::numeric_limits<int64_t>::max</a>());</div>
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<div class="line"><a id="l00647" name="l00647"></a><span class="lineno"> 647</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00648" name="l00648"></a><span class="lineno"> 648</span> arg->add_domain(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a07823d046b027c81155f8a2f322cf813">FloorRatio</a>(IntegerValue(<span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(scaled_ub)),</div>
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<div class="line"><a id="l00649" name="l00649"></a><span class="lineno"> 649</span> IntegerValue(gcd))</div>
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<div class="line"><a id="l00650" name="l00650"></a><span class="lineno"> 650</span> .<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>());</div>
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<div class="line"><a id="l00651" name="l00651"></a><span class="lineno"> 651</span> }</div>
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<div class="line"><a id="l00652" name="l00652"></a><span class="lineno"> 652</span> </div>
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<div class="line"><a id="l00653" name="l00653"></a><span class="lineno"> 653</span> <span class="keywordflow">return</span> constraint;</div>
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<div class="line"><a id="l00654" name="l00654"></a><span class="lineno"> 654</span>}</div>
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<div class="line"><a id="l00655" name="l00655"></a><span class="lineno"> 655</span> </div>
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<div class="line"><a id="l00656" name="l00656"></a><span class="lineno"> 656</span>} <span class="comment">// namespace</span></div>
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<div class="line"><a id="l00657" name="l00657"></a><span class="lineno"> 657</span> </div>
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<div class="line"><a id="l00658" name="l00658"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a8344143223766ba5898fdba30d6f61d8"> 658</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a8344143223766ba5898fdba30d6f61d8">ConvertMPModelProtoToCpModelProto</a>(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_parameters.html">SatParameters</a>& params,</div>
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<div class="line"><a id="l00659" name="l00659"></a><span class="lineno"> 659</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_model_proto.html">MPModelProto</a>& mp_model,</div>
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<div class="line"><a id="l00660" name="l00660"></a><span class="lineno"> 660</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_cp_model_proto.html">CpModelProto</a>* cp_model,</div>
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<div class="line"><a id="l00661" name="l00661"></a><span class="lineno"> 661</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="l00662" name="l00662"></a><span class="lineno"> 662</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(cp_model != <span class="keyword">nullptr</span>);</div>
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<div class="line"><a id="l00663" name="l00663"></a><span class="lineno"> 663</span> cp_model-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_proto.html#aa0d2b6ddea7cb960b90423ac48f555bf">Clear</a>();</div>
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<div class="line"><a id="l00664" name="l00664"></a><span class="lineno"> 664</span> cp_model-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_proto.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">set_name</a>(mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a24dcbf29c0d6cd766009a182a6484e3b">name</a>());</div>
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<div class="line"><a id="l00665" name="l00665"></a><span class="lineno"> 665</span> </div>
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<div class="line"><a id="l00666" name="l00666"></a><span class="lineno"> 666</span> <span class="comment">// To make sure we cannot have integer overflow, we use this bound for any</span></div>
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<div class="line"><a id="l00667" name="l00667"></a><span class="lineno"> 667</span> <span class="comment">// unbounded variable.</span></div>
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<div class="line"><a id="l00668" name="l00668"></a><span class="lineno"> 668</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00669" name="l00669"></a><span class="lineno"> 669</span> <span class="comment">// TODO(user): This could be made larger if needed, so be smarter if we have</span></div>
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<div class="line"><a id="l00670" name="l00670"></a><span class="lineno"> 670</span> <span class="comment">// MIP problem that we cannot "convert" because of this. Note however than we</span></div>
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<div class="line"><a id="l00671" name="l00671"></a><span class="lineno"> 671</span> <span class="comment">// cannot go that much further because we need to make sure we will not run</span></div>
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<div class="line"><a id="l00672" name="l00672"></a><span class="lineno"> 672</span> <span class="comment">// into overflow if we add a big linear combination of such variables. It</span></div>
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<div class="line"><a id="l00673" name="l00673"></a><span class="lineno"> 673</span> <span class="comment">// should always be possible for a user to scale its problem so that all</span></div>
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<div class="line"><a id="l00674" name="l00674"></a><span class="lineno"> 674</span> <span class="comment">// relevant quantities are a couple of millions. A LP/MIP solver have a</span></div>
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<div class="line"><a id="l00675" name="l00675"></a><span class="lineno"> 675</span> <span class="comment">// similar condition in disguise because problem with a difference of more</span></div>
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<div class="line"><a id="l00676" name="l00676"></a><span class="lineno"> 676</span> <span class="comment">// than 6 magnitudes between the variable values will likely run into numeric</span></div>
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<div class="line"><a id="l00677" name="l00677"></a><span class="lineno"> 677</span> <span class="comment">// trouble.</span></div>
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<div class="line"><a id="l00678" name="l00678"></a><span class="lineno"> 678</span> <span class="keyword">const</span> int64_t kMaxVariableBound =</div>
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<div class="line"><a id="l00679" name="l00679"></a><span class="lineno"> 679</span> <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(params.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#acacea4a8ea1bcb7601a0564fe006801d">mip_max_bound</a>());</div>
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<div class="line"><a id="l00680" name="l00680"></a><span class="lineno"> 680</span> </div>
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<div class="line"><a id="l00681" name="l00681"></a><span class="lineno"> 681</span> <span class="keywordtype">int</span> num_truncated_bounds = 0;</div>
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<div class="line"><a id="l00682" name="l00682"></a><span class="lineno"> 682</span> <span class="keywordtype">int</span> num_small_domains = 0;</div>
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<div class="line"><a id="l00683" name="l00683"></a><span class="lineno"> 683</span> <span class="keyword">const</span> int64_t kSmallDomainSize = 1000;</div>
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<div class="line"><a id="l00684" name="l00684"></a><span class="lineno"> 684</span> <span class="keyword">const</span> <span class="keywordtype">double</span> kWantedPrecision = params.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a3b48343e26eed9200efcffbdc71b359a">mip_wanted_precision</a>();</div>
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<div class="line"><a id="l00685" name="l00685"></a><span class="lineno"> 685</span> </div>
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<div class="line"><a id="l00686" name="l00686"></a><span class="lineno"> 686</span> <span class="comment">// Add the variables.</span></div>
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<div class="line"><a id="l00687" name="l00687"></a><span class="lineno"> 687</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_variables = mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a233b16fc13c9664e5b818158019af13d">variable_size</a>();</div>
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<div class="line"><a id="l00688" name="l00688"></a><span class="lineno"> 688</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_variables; ++i) {</div>
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<div class="line"><a id="l00689" name="l00689"></a><span class="lineno"> 689</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_variable_proto.html">MPVariableProto</a>& mp_var = mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(i);</div>
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<div class="line"><a id="l00690" name="l00690"></a><span class="lineno"> 690</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_variable_proto.html">IntegerVariableProto</a>* cp_var = cp_model-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_proto.html#ad03d1e2f94c4ca4c8004ac5355e6504a">add_variables</a>();</div>
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<div class="line"><a id="l00691" name="l00691"></a><span class="lineno"> 691</span> cp_var-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">set_name</a>(mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a24dcbf29c0d6cd766009a182a6484e3b">name</a>());</div>
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<div class="line"><a id="l00692" name="l00692"></a><span class="lineno"> 692</span> </div>
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<div class="line"><a id="l00693" name="l00693"></a><span class="lineno"> 693</span> <span class="comment">// Deal with the corner case of a domain far away from zero.</span></div>
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|
<div class="line"><a id="l00694" name="l00694"></a><span class="lineno"> 694</span> <span class="comment">//</span></div>
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|
<div class="line"><a id="l00695" name="l00695"></a><span class="lineno"> 695</span> <span class="comment">// TODO(user): We should deal with these case by shifting the domain so</span></div>
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|
<div class="line"><a id="l00696" name="l00696"></a><span class="lineno"> 696</span> <span class="comment">// that it includes zero instead of just fixing the variable. But that is a</span></div>
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|
<div class="line"><a id="l00697" name="l00697"></a><span class="lineno"> 697</span> <span class="comment">// bit of work as it requires some postsolve.</span></div>
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|
<div class="line"><a id="l00698" name="l00698"></a><span class="lineno"> 698</span> <span class="keywordflow">if</span> (mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a9748ce3280b2d4c16a2cd38a480b9c7c">lower_bound</a>() > kMaxVariableBound) {</div>
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<div class="line"><a id="l00699" name="l00699"></a><span class="lineno"> 699</span> <span class="comment">// Fix var to its lower bound.</span></div>
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<div class="line"><a id="l00700" name="l00700"></a><span class="lineno"> 700</span> ++num_truncated_bounds;</div>
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|
<div class="line"><a id="l00701" name="l00701"></a><span class="lineno"> 701</span> <span class="keyword">const</span> int64_t <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> =</div>
|
|
<div class="line"><a id="l00702" name="l00702"></a><span class="lineno"> 702</span> <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::round(mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a9748ce3280b2d4c16a2cd38a480b9c7c">lower_bound</a>()));</div>
|
|
<div class="line"><a id="l00703" name="l00703"></a><span class="lineno"> 703</span> cp_var-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#a2266c77ad6db8de45560357c1436e558">add_domain</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
|
|
<div class="line"><a id="l00704" name="l00704"></a><span class="lineno"> 704</span> cp_var-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#a2266c77ad6db8de45560357c1436e558">add_domain</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
|
|
<div class="line"><a id="l00705" name="l00705"></a><span class="lineno"> 705</span> <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a id="l00706" name="l00706"></a><span class="lineno"> 706</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a5158072d27a176fc38524893183d6527">upper_bound</a>() < -kMaxVariableBound) {</div>
|
|
<div class="line"><a id="l00707" name="l00707"></a><span class="lineno"> 707</span> <span class="comment">// Fix var to its upper_bound.</span></div>
|
|
<div class="line"><a id="l00708" name="l00708"></a><span class="lineno"> 708</span> ++num_truncated_bounds;</div>
|
|
<div class="line"><a id="l00709" name="l00709"></a><span class="lineno"> 709</span> <span class="keyword">const</span> int64_t <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> =</div>
|
|
<div class="line"><a id="l00710" name="l00710"></a><span class="lineno"> 710</span> <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::round(mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a5158072d27a176fc38524893183d6527">upper_bound</a>()));</div>
|
|
<div class="line"><a id="l00711" name="l00711"></a><span class="lineno"> 711</span> cp_var-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#a2266c77ad6db8de45560357c1436e558">add_domain</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
|
|
<div class="line"><a id="l00712" name="l00712"></a><span class="lineno"> 712</span> cp_var-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#a2266c77ad6db8de45560357c1436e558">add_domain</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
|
|
<div class="line"><a id="l00713" name="l00713"></a><span class="lineno"> 713</span> <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a id="l00714" name="l00714"></a><span class="lineno"> 714</span> }</div>
|
|
<div class="line"><a id="l00715" name="l00715"></a><span class="lineno"> 715</span> </div>
|
|
<div class="line"><a id="l00716" name="l00716"></a><span class="lineno"> 716</span> <span class="comment">// Note that we must process the lower bound first.</span></div>
|
|
<div class="line"><a id="l00717" name="l00717"></a><span class="lineno"> 717</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">bool</span> lower : {<span class="keyword">true</span>, <span class="keyword">false</span>}) {</div>
|
|
<div class="line"><a id="l00718" name="l00718"></a><span class="lineno"> 718</span> <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code hl_variable" href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a> = lower ? mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a9748ce3280b2d4c16a2cd38a480b9c7c">lower_bound</a>() : mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a5158072d27a176fc38524893183d6527">upper_bound</a>();</div>
|
|
<div class="line"><a id="l00719" name="l00719"></a><span class="lineno"> 719</span> <span class="keywordflow">if</span> (std::abs(<a class="code hl_variable" href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a>) >= kMaxVariableBound) {</div>
|
|
<div class="line"><a id="l00720" name="l00720"></a><span class="lineno"> 720</span> ++num_truncated_bounds;</div>
|
|
<div class="line"><a id="l00721" name="l00721"></a><span class="lineno"> 721</span> cp_var-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#a2266c77ad6db8de45560357c1436e558">add_domain</a>(<a class="code hl_variable" href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a> < 0 ? -kMaxVariableBound : kMaxVariableBound);</div>
|
|
<div class="line"><a id="l00722" name="l00722"></a><span class="lineno"> 722</span> <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a id="l00723" name="l00723"></a><span class="lineno"> 723</span> }</div>
|
|
<div class="line"><a id="l00724" name="l00724"></a><span class="lineno"> 724</span> </div>
|
|
<div class="line"><a id="l00725" name="l00725"></a><span class="lineno"> 725</span> <span class="comment">// Note that the cast is "perfect" because we forbid large values.</span></div>
|
|
<div class="line"><a id="l00726" name="l00726"></a><span class="lineno"> 726</span> cp_var-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#a2266c77ad6db8de45560357c1436e558">add_domain</a>(</div>
|
|
<div class="line"><a id="l00727" name="l00727"></a><span class="lineno"> 727</span> <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(lower ? std::ceil(<a class="code hl_variable" href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a> - kWantedPrecision)</div>
|
|
<div class="line"><a id="l00728" name="l00728"></a><span class="lineno"> 728</span> : std::floor(<a class="code hl_variable" href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a> + kWantedPrecision)));</div>
|
|
<div class="line"><a id="l00729" name="l00729"></a><span class="lineno"> 729</span> }</div>
|
|
<div class="line"><a id="l00730" name="l00730"></a><span class="lineno"> 730</span> </div>
|
|
<div class="line"><a id="l00731" name="l00731"></a><span class="lineno"> 731</span> <span class="keywordflow">if</span> (cp_var-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#aa9cb4e4ba977c364365487c63ed32446">domain</a>(0) > cp_var-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#aa9cb4e4ba977c364365487c63ed32446">domain</a>(1)) {</div>
|
|
<div class="line"><a id="l00732" name="l00732"></a><span class="lineno"> 732</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7">WARNING</a>) << <span class="stringliteral">"Variable #"</span> << i << <span class="stringliteral">" cannot take integer value. "</span></div>
|
|
<div class="line"><a id="l00733" name="l00733"></a><span class="lineno"> 733</span> << mp_var.ShortDebugString();</div>
|
|
<div class="line"><a id="l00734" name="l00734"></a><span class="lineno"> 734</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00735" name="l00735"></a><span class="lineno"> 735</span> }</div>
|
|
<div class="line"><a id="l00736" name="l00736"></a><span class="lineno"> 736</span> </div>
|
|
<div class="line"><a id="l00737" name="l00737"></a><span class="lineno"> 737</span> <span class="comment">// Notify if a continuous variable has a small domain as this is likely to</span></div>
|
|
<div class="line"><a id="l00738" name="l00738"></a><span class="lineno"> 738</span> <span class="comment">// make an all integer solution far from a continuous one.</span></div>
|
|
<div class="line"><a id="l00739" name="l00739"></a><span class="lineno"> 739</span> <span class="keywordflow">if</span> (!mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a90a6759a08c3d72c4193a0a75aa581bc">is_integer</a>() && cp_var-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#aa9cb4e4ba977c364365487c63ed32446">domain</a>(0) != cp_var-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#aa9cb4e4ba977c364365487c63ed32446">domain</a>(1) &&</div>
|
|
<div class="line"><a id="l00740" name="l00740"></a><span class="lineno"> 740</span> cp_var-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#aa9cb4e4ba977c364365487c63ed32446">domain</a>(1) - cp_var-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#aa9cb4e4ba977c364365487c63ed32446">domain</a>(0) < kSmallDomainSize) {</div>
|
|
<div class="line"><a id="l00741" name="l00741"></a><span class="lineno"> 741</span> ++num_small_domains;</div>
|
|
<div class="line"><a id="l00742" name="l00742"></a><span class="lineno"> 742</span> }</div>
|
|
<div class="line"><a id="l00743" name="l00743"></a><span class="lineno"> 743</span> }</div>
|
|
<div class="line"><a id="l00744" name="l00744"></a><span class="lineno"> 744</span> </div>
|
|
<div class="line"><a id="l00745" name="l00745"></a><span class="lineno"> 745</span> <a class="code hl_define" href="base_2logging_8h.html#a09f7d88282cf92c9f231270ac113e5c6">LOG_IF</a>(<a class="code hl_variable" href="log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7">WARNING</a>, num_truncated_bounds > 0)</div>
|
|
<div class="line"><a id="l00746" name="l00746"></a><span class="lineno"> 746</span> << num_truncated_bounds << <span class="stringliteral">" bounds were truncated to "</span></div>
|
|
<div class="line"><a id="l00747" name="l00747"></a><span class="lineno"> 747</span> << kMaxVariableBound << <span class="stringliteral">"."</span>;</div>
|
|
<div class="line"><a id="l00748" name="l00748"></a><span class="lineno"> 748</span> <a class="code hl_define" href="base_2logging_8h.html#a09f7d88282cf92c9f231270ac113e5c6">LOG_IF</a>(<a class="code hl_variable" href="log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7">WARNING</a>, num_small_domains > 0)</div>
|
|
<div class="line"><a id="l00749" name="l00749"></a><span class="lineno"> 749</span> << num_small_domains << <span class="stringliteral">" continuous variable domain with fewer than "</span></div>
|
|
<div class="line"><a id="l00750" name="l00750"></a><span class="lineno"> 750</span> << kSmallDomainSize << <span class="stringliteral">" values."</span>;</div>
|
|
<div class="line"><a id="l00751" name="l00751"></a><span class="lineno"> 751</span> </div>
|
|
<div class="line"><a id="l00752" name="l00752"></a><span class="lineno"> 752</span> ConstraintScaler scaler;</div>
|
|
<div class="line"><a id="l00753" name="l00753"></a><span class="lineno"> 753</span> <span class="keyword">const</span> int64_t kScalingTarget = int64_t{1}</div>
|
|
<div class="line"><a id="l00754" name="l00754"></a><span class="lineno"> 754</span> << params.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#ab87d9887d29cb46057a3ebe347338938">mip_max_activity_exponent</a>();</div>
|
|
<div class="line"><a id="l00755" name="l00755"></a><span class="lineno"> 755</span> scaler.wanted_precision = kWantedPrecision;</div>
|
|
<div class="line"><a id="l00756" name="l00756"></a><span class="lineno"> 756</span> scaler.scaling_target = kScalingTarget;</div>
|
|
<div class="line"><a id="l00757" name="l00757"></a><span class="lineno"> 757</span> </div>
|
|
<div class="line"><a id="l00758" name="l00758"></a><span class="lineno"> 758</span> <span class="comment">// Add the constraints. We scale each of them individually.</span></div>
|
|
<div class="line"><a id="l00759" name="l00759"></a><span class="lineno"> 759</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_constraint_proto.html">MPConstraintProto</a>& mp_constraint : mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a1a8302446f7835e502a5aced4f29b3bf">constraint</a>()) {</div>
|
|
<div class="line"><a id="l00760" name="l00760"></a><span class="lineno"> 760</span> scaler.AddConstraint(mp_model, mp_constraint, cp_model);</div>
|
|
<div class="line"><a id="l00761" name="l00761"></a><span class="lineno"> 761</span> }</div>
|
|
<div class="line"><a id="l00762" name="l00762"></a><span class="lineno"> 762</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_general_constraint_proto.html">MPGeneralConstraintProto</a>& general_constraint :</div>
|
|
<div class="line"><a id="l00763" name="l00763"></a><span class="lineno"> 763</span> mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#ac25215d204acbcae9cbaf127f97ba1ee">general_constraint</a>()) {</div>
|
|
<div class="line"><a id="l00764" name="l00764"></a><span class="lineno"> 764</span> <span class="keywordflow">switch</span> (general_constraint.general_constraint_case()) {</div>
|
|
<div class="line"><a id="l00765" name="l00765"></a><span class="lineno"> 765</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classoperations__research_1_1_m_p_general_constraint_proto.html#a62ad97ce87eebedbf02689673fdd7ba8adb73cf3a9cba115e1da4c121570552df">MPGeneralConstraintProto::kIndicatorConstraint</a>: {</div>
|
|
<div class="line"><a id="l00766" name="l00766"></a><span class="lineno"> 766</span> <span class="keyword">const</span> <span class="keyword">auto</span>& indicator_constraint =</div>
|
|
<div class="line"><a id="l00767" name="l00767"></a><span class="lineno"> 767</span> general_constraint.indicator_constraint();</div>
|
|
<div class="line"><a id="l00768" name="l00768"></a><span class="lineno"> 768</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_constraint_proto.html">MPConstraintProto</a>& mp_constraint =</div>
|
|
<div class="line"><a id="l00769" name="l00769"></a><span class="lineno"> 769</span> indicator_constraint.constraint();</div>
|
|
<div class="line"><a id="l00770" name="l00770"></a><span class="lineno"> 770</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>
|
|
<div class="line"><a id="l00771" name="l00771"></a><span class="lineno"> 771</span> scaler.AddConstraint(mp_model, mp_constraint, cp_model);</div>
|
|
<div class="line"><a id="l00772" name="l00772"></a><span class="lineno"> 772</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> == <span class="keyword">nullptr</span>) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a id="l00773" name="l00773"></a><span class="lineno"> 773</span> </div>
|
|
<div class="line"><a id="l00774" name="l00774"></a><span class="lineno"> 774</span> <span class="comment">// Add the indicator.</span></div>
|
|
<div class="line"><a id="l00775" name="l00775"></a><span class="lineno"> 775</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = indicator_constraint.var_index();</div>
|
|
<div class="line"><a id="l00776" name="l00776"></a><span class="lineno"> 776</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = indicator_constraint.var_value();</div>
|
|
<div class="line"><a id="l00777" name="l00777"></a><span class="lineno"> 777</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->add_enforcement_literal(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> == 1 ? <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> : <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ae0803b8198728cd4f6e58498d9c60091">NegatedRef</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>));</div>
|
|
<div class="line"><a id="l00778" name="l00778"></a><span class="lineno"> 778</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00779" name="l00779"></a><span class="lineno"> 779</span> }</div>
|
|
<div class="line"><a id="l00780" name="l00780"></a><span class="lineno"> 780</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classoperations__research_1_1_m_p_general_constraint_proto.html#a62ad97ce87eebedbf02689673fdd7ba8aec4b4d410cc58785223094f8ff100eb7">MPGeneralConstraintProto::kAndConstraint</a>: {</div>
|
|
<div class="line"><a id="l00781" name="l00781"></a><span class="lineno"> 781</span> <span class="keyword">const</span> <span class="keyword">auto</span>& and_constraint = general_constraint.and_constraint();</div>
|
|
<div class="line"><a id="l00782" name="l00782"></a><span class="lineno"> 782</span> <span class="keyword">const</span> std::string& <a class="code hl_variable" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a> = general_constraint.name();</div>
|
|
<div class="line"><a id="l00783" name="l00783"></a><span class="lineno"> 783</span> </div>
|
|
<div class="line"><a id="l00784" name="l00784"></a><span class="lineno"> 784</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* ct_pos = cp_model-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_proto.html#ac01de597eeeff5521a8bf54568bf1373">add_constraints</a>();</div>
|
|
<div class="line"><a id="l00785" name="l00785"></a><span class="lineno"> 785</span> ct_pos-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_constraint_proto.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">set_name</a>(<a class="code hl_variable" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>.empty() ? <span class="stringliteral">""</span> : absl::StrCat(<a class="code hl_variable" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>, <span class="stringliteral">"_pos"</span>));</div>
|
|
<div class="line"><a id="l00786" name="l00786"></a><span class="lineno"> 786</span> ct_pos-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_constraint_proto.html#acfab2074ffdcaf9686057126c5e29d38">add_enforcement_literal</a>(and_constraint.resultant_var_index());</div>
|
|
<div class="line"><a id="l00787" name="l00787"></a><span class="lineno"> 787</span> *ct_pos-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_constraint_proto.html#a962fe3316eafe5815027312585d5c4d6">mutable_bool_and</a>()-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_bool_argument_proto.html#a7e9ec85488cc2f768942885d54b2df8c">mutable_literals</a>() =</div>
|
|
<div class="line"><a id="l00788" name="l00788"></a><span class="lineno"> 788</span> and_constraint.var_index();</div>
|
|
<div class="line"><a id="l00789" name="l00789"></a><span class="lineno"> 789</span> </div>
|
|
<div class="line"><a id="l00790" name="l00790"></a><span class="lineno"> 790</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* ct_neg = cp_model-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_proto.html#ac01de597eeeff5521a8bf54568bf1373">add_constraints</a>();</div>
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|
<div class="line"><a id="l00791" name="l00791"></a><span class="lineno"> 791</span> ct_neg-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_constraint_proto.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">set_name</a>(<a class="code hl_variable" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>.empty() ? <span class="stringliteral">""</span> : absl::StrCat(<a class="code hl_variable" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>, <span class="stringliteral">"_neg"</span>));</div>
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|
<div class="line"><a id="l00792" name="l00792"></a><span class="lineno"> 792</span> ct_neg-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_constraint_proto.html#acfab2074ffdcaf9686057126c5e29d38">add_enforcement_literal</a>(</div>
|
|
<div class="line"><a id="l00793" name="l00793"></a><span class="lineno"> 793</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ae0803b8198728cd4f6e58498d9c60091">NegatedRef</a>(and_constraint.resultant_var_index()));</div>
|
|
<div class="line"><a id="l00794" name="l00794"></a><span class="lineno"> 794</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> var_index : and_constraint.var_index()) {</div>
|
|
<div class="line"><a id="l00795" name="l00795"></a><span class="lineno"> 795</span> ct_neg-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_constraint_proto.html#ae26e2a099b411b50dd1d4c6605837d0a">mutable_bool_or</a>()-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_bool_argument_proto.html#a9abd20cd5c98c0a4535d168a1c7bb18e">add_literals</a>(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ae0803b8198728cd4f6e58498d9c60091">NegatedRef</a>(var_index));</div>
|
|
<div class="line"><a id="l00796" name="l00796"></a><span class="lineno"> 796</span> }</div>
|
|
<div class="line"><a id="l00797" name="l00797"></a><span class="lineno"> 797</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00798" name="l00798"></a><span class="lineno"> 798</span> }</div>
|
|
<div class="line"><a id="l00799" name="l00799"></a><span class="lineno"> 799</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classoperations__research_1_1_m_p_general_constraint_proto.html#a62ad97ce87eebedbf02689673fdd7ba8ace5d280d5b6fc0a47041b6e62e4f45b3">MPGeneralConstraintProto::kOrConstraint</a>: {</div>
|
|
<div class="line"><a id="l00800" name="l00800"></a><span class="lineno"> 800</span> <span class="keyword">const</span> <span class="keyword">auto</span>& or_constraint = general_constraint.or_constraint();</div>
|
|
<div class="line"><a id="l00801" name="l00801"></a><span class="lineno"> 801</span> <span class="keyword">const</span> std::string& <a class="code hl_variable" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a> = general_constraint.name();</div>
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|
<div class="line"><a id="l00802" name="l00802"></a><span class="lineno"> 802</span> </div>
|
|
<div class="line"><a id="l00803" name="l00803"></a><span class="lineno"> 803</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* ct_pos = cp_model-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_proto.html#ac01de597eeeff5521a8bf54568bf1373">add_constraints</a>();</div>
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|
<div class="line"><a id="l00804" name="l00804"></a><span class="lineno"> 804</span> ct_pos-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_constraint_proto.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">set_name</a>(<a class="code hl_variable" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>.empty() ? <span class="stringliteral">""</span> : absl::StrCat(<a class="code hl_variable" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>, <span class="stringliteral">"_pos"</span>));</div>
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|
<div class="line"><a id="l00805" name="l00805"></a><span class="lineno"> 805</span> ct_pos-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_constraint_proto.html#acfab2074ffdcaf9686057126c5e29d38">add_enforcement_literal</a>(or_constraint.resultant_var_index());</div>
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|
<div class="line"><a id="l00806" name="l00806"></a><span class="lineno"> 806</span> *ct_pos-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_constraint_proto.html#ae26e2a099b411b50dd1d4c6605837d0a">mutable_bool_or</a>()-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_bool_argument_proto.html#a7e9ec85488cc2f768942885d54b2df8c">mutable_literals</a>() =</div>
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|
<div class="line"><a id="l00807" name="l00807"></a><span class="lineno"> 807</span> or_constraint.var_index();</div>
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|
<div class="line"><a id="l00808" name="l00808"></a><span class="lineno"> 808</span> </div>
|
|
<div class="line"><a id="l00809" name="l00809"></a><span class="lineno"> 809</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_constraint_proto.html">ConstraintProto</a>* ct_neg = cp_model-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_proto.html#ac01de597eeeff5521a8bf54568bf1373">add_constraints</a>();</div>
|
|
<div class="line"><a id="l00810" name="l00810"></a><span class="lineno"> 810</span> ct_neg-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_constraint_proto.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">set_name</a>(<a class="code hl_variable" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>.empty() ? <span class="stringliteral">""</span> : absl::StrCat(<a class="code hl_variable" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>, <span class="stringliteral">"_neg"</span>));</div>
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|
<div class="line"><a id="l00811" name="l00811"></a><span class="lineno"> 811</span> ct_neg-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_constraint_proto.html#acfab2074ffdcaf9686057126c5e29d38">add_enforcement_literal</a>(</div>
|
|
<div class="line"><a id="l00812" name="l00812"></a><span class="lineno"> 812</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ae0803b8198728cd4f6e58498d9c60091">NegatedRef</a>(or_constraint.resultant_var_index()));</div>
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|
<div class="line"><a id="l00813" name="l00813"></a><span class="lineno"> 813</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> var_index : or_constraint.var_index()) {</div>
|
|
<div class="line"><a id="l00814" name="l00814"></a><span class="lineno"> 814</span> ct_neg-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_constraint_proto.html#a962fe3316eafe5815027312585d5c4d6">mutable_bool_and</a>()-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_bool_argument_proto.html#a9abd20cd5c98c0a4535d168a1c7bb18e">add_literals</a>(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ae0803b8198728cd4f6e58498d9c60091">NegatedRef</a>(var_index));</div>
|
|
<div class="line"><a id="l00815" name="l00815"></a><span class="lineno"> 815</span> }</div>
|
|
<div class="line"><a id="l00816" name="l00816"></a><span class="lineno"> 816</span> <span class="keywordflow">break</span>;</div>
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|
<div class="line"><a id="l00817" name="l00817"></a><span class="lineno"> 817</span> }</div>
|
|
<div class="line"><a id="l00818" name="l00818"></a><span class="lineno"> 818</span> <span class="keywordflow">default</span>:</div>
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|
<div class="line"><a id="l00819" name="l00819"></a><span class="lineno"> 819</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#ac9bcbe19995a8140cd4ec61773cd6e67">ERROR</a>) << <span class="stringliteral">"Can't convert general constraints of type "</span></div>
|
|
<div class="line"><a id="l00820" name="l00820"></a><span class="lineno"> 820</span> << general_constraint.general_constraint_case()</div>
|
|
<div class="line"><a id="l00821" name="l00821"></a><span class="lineno"> 821</span> << <span class="stringliteral">" to CpModelProto."</span>;</div>
|
|
<div class="line"><a id="l00822" name="l00822"></a><span class="lineno"> 822</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00823" name="l00823"></a><span class="lineno"> 823</span> }</div>
|
|
<div class="line"><a id="l00824" name="l00824"></a><span class="lineno"> 824</span> }</div>
|
|
<div class="line"><a id="l00825" name="l00825"></a><span class="lineno"> 825</span> </div>
|
|
<div class="line"><a id="l00826" name="l00826"></a><span class="lineno"> 826</span> <span class="comment">// Display the error/scaling on the constraints.</span></div>
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|
<div class="line"><a id="l00827" name="l00827"></a><span class="lineno"> 827</span> <a class="code hl_define" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger, <span class="stringliteral">"Maximum constraint coefficient relative error: "</span>,</div>
|
|
<div class="line"><a id="l00828" name="l00828"></a><span class="lineno"> 828</span> scaler.max_relative_coeff_error);</div>
|
|
<div class="line"><a id="l00829" name="l00829"></a><span class="lineno"> 829</span> <a class="code hl_define" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger, <span class="stringliteral">"Maximum constraint worst-case activity relative error: "</span>,</div>
|
|
<div class="line"><a id="l00830" name="l00830"></a><span class="lineno"> 830</span> scaler.max_relative_rhs_error,</div>
|
|
<div class="line"><a id="l00831" name="l00831"></a><span class="lineno"> 831</span> (scaler.max_relative_rhs_error > params.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a189f7da98fc562957090a3c24e549909">mip_check_precision</a>()</div>
|
|
<div class="line"><a id="l00832" name="l00832"></a><span class="lineno"> 832</span> ? <span class="stringliteral">" [Potentially IMPRECISE]"</span></div>
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|
<div class="line"><a id="l00833" name="l00833"></a><span class="lineno"> 833</span> : <span class="stringliteral">""</span>));</div>
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|
<div class="line"><a id="l00834" name="l00834"></a><span class="lineno"> 834</span> <a class="code hl_define" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger,</div>
|
|
<div class="line"><a id="l00835" name="l00835"></a><span class="lineno"> 835</span> <span class="stringliteral">"Maximum constraint scaling factor: "</span>, scaler.max_scaling_factor);</div>
|
|
<div class="line"><a id="l00836" name="l00836"></a><span class="lineno"> 836</span> </div>
|
|
<div class="line"><a id="l00837" name="l00837"></a><span class="lineno"> 837</span> <span class="comment">// Add the objective.</span></div>
|
|
<div class="line"><a id="l00838" name="l00838"></a><span class="lineno"> 838</span> std::vector<int> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a>;</div>
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|
<div class="line"><a id="l00839" name="l00839"></a><span class="lineno"> 839</span> std::vector<double> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>;</div>
|
|
<div class="line"><a id="l00840" name="l00840"></a><span class="lineno"> 840</span> std::vector<double> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>;</div>
|
|
<div class="line"><a id="l00841" name="l00841"></a><span class="lineno"> 841</span> std::vector<double> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>;</div>
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|
<div class="line"><a id="l00842" name="l00842"></a><span class="lineno"> 842</span> <span class="keywordtype">double</span> min_magnitude = std::numeric_limits<double>::infinity();</div>
|
|
<div class="line"><a id="l00843" name="l00843"></a><span class="lineno"> 843</span> <span class="keywordtype">double</span> max_magnitude = 0.0;</div>
|
|
<div class="line"><a id="l00844" name="l00844"></a><span class="lineno"> 844</span> <span class="keywordtype">double</span> l1_norm = 0.0;</div>
|
|
<div class="line"><a id="l00845" name="l00845"></a><span class="lineno"> 845</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_variables; ++i) {</div>
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|
<div class="line"><a id="l00846" name="l00846"></a><span class="lineno"> 846</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_variable_proto.html">MPVariableProto</a>& mp_var = mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(i);</div>
|
|
<div class="line"><a id="l00847" name="l00847"></a><span class="lineno"> 847</span> <span class="keywordflow">if</span> (mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a45d214423bb4cd180eff038c9efcf638">objective_coefficient</a>() == 0.0) <span class="keywordflow">continue</span>;</div>
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|
<div class="line"><a id="l00848" name="l00848"></a><span class="lineno"> 848</span> </div>
|
|
<div class="line"><a id="l00849" name="l00849"></a><span class="lineno"> 849</span> <span class="keyword">const</span> <span class="keyword">auto</span>& var_proto = cp_model-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_proto.html#a6a4544ca20489d70e302f5d6d374a012">variables</a>(i);</div>
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|
<div class="line"><a id="l00850" name="l00850"></a><span class="lineno"> 850</span> <span class="keyword">const</span> int64_t lb = var_proto.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#aa9cb4e4ba977c364365487c63ed32446">domain</a>(0);</div>
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|
<div class="line"><a id="l00851" name="l00851"></a><span class="lineno"> 851</span> <span class="keyword">const</span> int64_t ub = var_proto.domain(var_proto.domain_size() - 1);</div>
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|
<div class="line"><a id="l00852" name="l00852"></a><span class="lineno"> 852</span> <span class="keywordflow">if</span> (lb == 0 && ub == 0) <span class="keywordflow">continue</span>;</div>
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|
<div class="line"><a id="l00853" name="l00853"></a><span class="lineno"> 853</span> </div>
|
|
<div class="line"><a id="l00854" name="l00854"></a><span class="lineno"> 854</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a>.push_back(i);</div>
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|
<div class="line"><a id="l00855" name="l00855"></a><span class="lineno"> 855</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.push_back(mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a45d214423bb4cd180eff038c9efcf638">objective_coefficient</a>());</div>
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|
<div class="line"><a id="l00856" name="l00856"></a><span class="lineno"> 856</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>.push_back(lb);</div>
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|
<div class="line"><a id="l00857" name="l00857"></a><span class="lineno"> 857</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>.push_back(ub);</div>
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|
<div class="line"><a id="l00858" name="l00858"></a><span class="lineno"> 858</span> min_magnitude = <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(min_magnitude, std::abs(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.back()));</div>
|
|
<div class="line"><a id="l00859" name="l00859"></a><span class="lineno"> 859</span> max_magnitude = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(max_magnitude, std::abs(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.back()));</div>
|
|
<div class="line"><a id="l00860" name="l00860"></a><span class="lineno"> 860</span> l1_norm += std::abs(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.back());</div>
|
|
<div class="line"><a id="l00861" name="l00861"></a><span class="lineno"> 861</span> }</div>
|
|
<div class="line"><a id="l00862" name="l00862"></a><span class="lineno"> 862</span> <span class="keywordflow">if</span> (!<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.empty()) {</div>
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|
<div class="line"><a id="l00863" name="l00863"></a><span class="lineno"> 863</span> <span class="keyword">const</span> <span class="keywordtype">double</span> average_magnitude =</div>
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|
<div class="line"><a id="l00864" name="l00864"></a><span class="lineno"> 864</span> l1_norm / <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.size());</div>
|
|
<div class="line"><a id="l00865" name="l00865"></a><span class="lineno"> 865</span> <a class="code hl_define" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger, <span class="stringliteral">"Objective magnitude in ["</span>, min_magnitude, <span class="stringliteral">", "</span>,</div>
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|
<div class="line"><a id="l00866" name="l00866"></a><span class="lineno"> 866</span> max_magnitude, <span class="stringliteral">"] average = "</span>, average_magnitude);</div>
|
|
<div class="line"><a id="l00867" name="l00867"></a><span class="lineno"> 867</span> }</div>
|
|
<div class="line"><a id="l00868" name="l00868"></a><span class="lineno"> 868</span> <span class="keywordflow">if</span> (!<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.empty() || mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a6f3611559b9d19eb580c5768c963bd99">objective_offset</a>() != 0.0) {</div>
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|
<div class="line"><a id="l00869" name="l00869"></a><span class="lineno"> 869</span> <span class="keywordtype">double</span> scaling_factor = <a class="code hl_function" href="namespaceoperations__research.html#aae3359f1c2367d44e5cf9be5d5abc89f">GetBestScalingOfDoublesToInt64</a>(</div>
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|
<div class="line"><a id="l00870" name="l00870"></a><span class="lineno"> 870</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>, kScalingTarget);</div>
|
|
<div class="line"><a id="l00871" name="l00871"></a><span class="lineno"> 871</span> <span class="keywordflow">if</span> (scaling_factor == 0.0) {</div>
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<div class="line"><a id="l00872" name="l00872"></a><span class="lineno"> 872</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#ac9bcbe19995a8140cd4ec61773cd6e67">ERROR</a>) << <span class="stringliteral">"Scaling factor of zero while scaling objective! This "</span></div>
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<div class="line"><a id="l00873" name="l00873"></a><span class="lineno"> 873</span> <span class="stringliteral">"likely indicate an infinite coefficient in the objective."</span>;</div>
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<div class="line"><a id="l00874" name="l00874"></a><span class="lineno"> 874</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00875" name="l00875"></a><span class="lineno"> 875</span> }</div>
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<div class="line"><a id="l00876" name="l00876"></a><span class="lineno"> 876</span> </div>
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<div class="line"><a id="l00877" name="l00877"></a><span class="lineno"> 877</span> <span class="comment">// Returns the smallest factor of the form 2^i that gives us an absolute</span></div>
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|
<div class="line"><a id="l00878" name="l00878"></a><span class="lineno"> 878</span> <span class="comment">// error of kWantedPrecision and still make sure we will have no integer</span></div>
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|
<div class="line"><a id="l00879" name="l00879"></a><span class="lineno"> 879</span> <span class="comment">// overflow.</span></div>
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|
<div class="line"><a id="l00880" name="l00880"></a><span class="lineno"> 880</span> <span class="comment">//</span></div>
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|
<div class="line"><a id="l00881" name="l00881"></a><span class="lineno"> 881</span> <span class="comment">// TODO(user): Make this faster.</span></div>
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|
<div class="line"><a id="l00882" name="l00882"></a><span class="lineno"> 882</span> <span class="keywordtype">double</span> x = <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(scaling_factor, 1.0);</div>
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<div class="line"><a id="l00883" name="l00883"></a><span class="lineno"> 883</span> <span class="keywordtype">double</span> relative_coeff_error;</div>
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|
<div class="line"><a id="l00884" name="l00884"></a><span class="lineno"> 884</span> <span class="keywordtype">double</span> scaled_sum_error;</div>
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<div class="line"><a id="l00885" name="l00885"></a><span class="lineno"> 885</span> <span class="keywordflow">for</span> (; x <= scaling_factor; x *= 2) {</div>
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<div class="line"><a id="l00886" name="l00886"></a><span class="lineno"> 886</span> <a class="code hl_function" href="namespaceoperations__research.html#a46f21c3da23685e58b31d880b2144458">ComputeScalingErrors</a>(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>, x,</div>
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|
<div class="line"><a id="l00887" name="l00887"></a><span class="lineno"> 887</span> &relative_coeff_error, &scaled_sum_error);</div>
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|
<div class="line"><a id="l00888" name="l00888"></a><span class="lineno"> 888</span> <span class="keywordflow">if</span> (scaled_sum_error < kWantedPrecision * x) <span class="keywordflow">break</span>;</div>
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|
<div class="line"><a id="l00889" name="l00889"></a><span class="lineno"> 889</span> }</div>
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|
<div class="line"><a id="l00890" name="l00890"></a><span class="lineno"> 890</span> scaling_factor = x;</div>
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|
<div class="line"><a id="l00891" name="l00891"></a><span class="lineno"> 891</span> </div>
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|
<div class="line"><a id="l00892" name="l00892"></a><span class="lineno"> 892</span> <span class="comment">// Same remark as for the constraint.</span></div>
|
|
<div class="line"><a id="l00893" name="l00893"></a><span class="lineno"> 893</span> <span class="comment">// TODO(user): Extract common code.</span></div>
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|
<div class="line"><a id="l00894" name="l00894"></a><span class="lineno"> 894</span> <span class="keyword">const</span> <span class="keywordtype">double</span> integer_factor = FindFractionalScaling(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, 1e-8);</div>
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|
<div class="line"><a id="l00895" name="l00895"></a><span class="lineno"> 895</span> <span class="keywordflow">if</span> (integer_factor != 0 && integer_factor < scaling_factor) {</div>
|
|
<div class="line"><a id="l00896" name="l00896"></a><span class="lineno"> 896</span> <a class="code hl_function" href="namespaceoperations__research.html#a46f21c3da23685e58b31d880b2144458">ComputeScalingErrors</a>(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>, x,</div>
|
|
<div class="line"><a id="l00897" name="l00897"></a><span class="lineno"> 897</span> &relative_coeff_error, &scaled_sum_error);</div>
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|
<div class="line"><a id="l00898" name="l00898"></a><span class="lineno"> 898</span> <span class="keywordflow">if</span> (scaled_sum_error < kWantedPrecision * integer_factor) {</div>
|
|
<div class="line"><a id="l00899" name="l00899"></a><span class="lineno"> 899</span> scaling_factor = integer_factor;</div>
|
|
<div class="line"><a id="l00900" name="l00900"></a><span class="lineno"> 900</span> }</div>
|
|
<div class="line"><a id="l00901" name="l00901"></a><span class="lineno"> 901</span> }</div>
|
|
<div class="line"><a id="l00902" name="l00902"></a><span class="lineno"> 902</span> </div>
|
|
<div class="line"><a id="l00903" name="l00903"></a><span class="lineno"> 903</span> <span class="keyword">const</span> int64_t gcd =</div>
|
|
<div class="line"><a id="l00904" name="l00904"></a><span class="lineno"> 904</span> <a class="code hl_function" href="namespaceoperations__research.html#aae2e6ed909e0cd5f240b885800f55c87">ComputeGcdOfRoundedDoubles</a>(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, scaling_factor);</div>
|
|
<div class="line"><a id="l00905" name="l00905"></a><span class="lineno"> 905</span> </div>
|
|
<div class="line"><a id="l00906" name="l00906"></a><span class="lineno"> 906</span> <span class="comment">// Display the objective error/scaling.</span></div>
|
|
<div class="line"><a id="l00907" name="l00907"></a><span class="lineno"> 907</span> <a class="code hl_define" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(</div>
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|
<div class="line"><a id="l00908" name="l00908"></a><span class="lineno"> 908</span> logger, <span class="stringliteral">"Objective coefficient relative error: "</span>, relative_coeff_error,</div>
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|
<div class="line"><a id="l00909" name="l00909"></a><span class="lineno"> 909</span> (relative_coeff_error > params.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a189f7da98fc562957090a3c24e549909">mip_check_precision</a>() ? <span class="stringliteral">" [IMPRECISE]"</span></div>
|
|
<div class="line"><a id="l00910" name="l00910"></a><span class="lineno"> 910</span> : <span class="stringliteral">""</span>));</div>
|
|
<div class="line"><a id="l00911" name="l00911"></a><span class="lineno"> 911</span> <a class="code hl_define" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger, <span class="stringliteral">"Objective worst-case absolute error: "</span>,</div>
|
|
<div class="line"><a id="l00912" name="l00912"></a><span class="lineno"> 912</span> scaled_sum_error / scaling_factor);</div>
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|
<div class="line"><a id="l00913" name="l00913"></a><span class="lineno"> 913</span> <a class="code hl_define" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger, <span class="stringliteral">"Objective scaling factor: "</span>, scaling_factor / gcd);</div>
|
|
<div class="line"><a id="l00914" name="l00914"></a><span class="lineno"> 914</span> </div>
|
|
<div class="line"><a id="l00915" name="l00915"></a><span class="lineno"> 915</span> <span class="comment">// Note that here we set the scaling factor for the inverse operation of</span></div>
|
|
<div class="line"><a id="l00916" name="l00916"></a><span class="lineno"> 916</span> <span class="comment">// getting the "true" objective value from the scaled one. Hence the</span></div>
|
|
<div class="line"><a id="l00917" name="l00917"></a><span class="lineno"> 917</span> <span class="comment">// inverse.</span></div>
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|
<div class="line"><a id="l00918" name="l00918"></a><span class="lineno"> 918</span> <span class="keyword">auto</span>* objective = cp_model-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_proto.html#ad3badc7aa3d94e81e0126edbfa452fda">mutable_objective</a>();</div>
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|
<div class="line"><a id="l00919" name="l00919"></a><span class="lineno"> 919</span> <span class="keyword">const</span> <span class="keywordtype">int</span> mult = mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#ad3c37b53f974ee5f215d410d93841d63">maximize</a>() ? -1 : 1;</div>
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|
<div class="line"><a id="l00920" name="l00920"></a><span class="lineno"> 920</span> objective->set_offset(mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a6f3611559b9d19eb580c5768c963bd99">objective_offset</a>() * scaling_factor / gcd *</div>
|
|
<div class="line"><a id="l00921" name="l00921"></a><span class="lineno"> 921</span> mult);</div>
|
|
<div class="line"><a id="l00922" name="l00922"></a><span class="lineno"> 922</span> objective->set_scaling_factor(1.0 / scaling_factor * gcd * mult);</div>
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|
<div class="line"><a id="l00923" name="l00923"></a><span class="lineno"> 923</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.size(); ++i) {</div>
|
|
<div class="line"><a id="l00924" name="l00924"></a><span class="lineno"> 924</span> <span class="keyword">const</span> int64_t <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> =</div>
|
|
<div class="line"><a id="l00925" name="l00925"></a><span class="lineno"> 925</span> <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::round(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>[i] * scaling_factor)) /</div>
|
|
<div class="line"><a id="l00926" name="l00926"></a><span class="lineno"> 926</span> gcd;</div>
|
|
<div class="line"><a id="l00927" name="l00927"></a><span class="lineno"> 927</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> != 0) {</div>
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|
<div class="line"><a id="l00928" name="l00928"></a><span class="lineno"> 928</span> objective->add_vars(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a>[i]);</div>
|
|
<div class="line"><a id="l00929" name="l00929"></a><span class="lineno"> 929</span> objective->add_coeffs(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> * mult);</div>
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|
<div class="line"><a id="l00930" name="l00930"></a><span class="lineno"> 930</span> }</div>
|
|
<div class="line"><a id="l00931" name="l00931"></a><span class="lineno"> 931</span> }</div>
|
|
<div class="line"><a id="l00932" name="l00932"></a><span class="lineno"> 932</span> }</div>
|
|
<div class="line"><a id="l00933" name="l00933"></a><span class="lineno"> 933</span> </div>
|
|
<div class="line"><a id="l00934" name="l00934"></a><span class="lineno"> 934</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00935" name="l00935"></a><span class="lineno"> 935</span>}</div>
|
|
<div class="line"><a id="l00936" name="l00936"></a><span class="lineno"> 936</span> </div>
|
|
<div class="line"><a id="l00937" name="l00937"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a7b33067a7dffa07cd5748bc4552c85a1"> 937</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a7b33067a7dffa07cd5748bc4552c85a1">ConvertBinaryMPModelProtoToBooleanProblem</a>(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_model_proto.html">MPModelProto</a>& mp_model,</div>
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|
<div class="line"><a id="l00938" name="l00938"></a><span class="lineno"> 938</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html">LinearBooleanProblem</a>* problem) {</div>
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|
<div class="line"><a id="l00939" name="l00939"></a><span class="lineno"> 939</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(problem != <span class="keyword">nullptr</span>);</div>
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|
<div class="line"><a id="l00940" name="l00940"></a><span class="lineno"> 940</span> problem-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#aa0d2b6ddea7cb960b90423ac48f555bf">Clear</a>();</div>
|
|
<div class="line"><a id="l00941" name="l00941"></a><span class="lineno"> 941</span> problem-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">set_name</a>(mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a24dcbf29c0d6cd766009a182a6484e3b">name</a>());</div>
|
|
<div class="line"><a id="l00942" name="l00942"></a><span class="lineno"> 942</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_variables = mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a233b16fc13c9664e5b818158019af13d">variable_size</a>();</div>
|
|
<div class="line"><a id="l00943" name="l00943"></a><span class="lineno"> 943</span> problem-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#a9c49f41aac27b985f50e0205c845a572">set_num_variables</a>(num_variables);</div>
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|
<div class="line"><a id="l00944" name="l00944"></a><span class="lineno"> 944</span> </div>
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|
<div class="line"><a id="l00945" name="l00945"></a><span class="lineno"> 945</span> <span class="comment">// Test if the variables are binary variables.</span></div>
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|
<div class="line"><a id="l00946" name="l00946"></a><span class="lineno"> 946</span> <span class="comment">// Add constraints for the fixed variables.</span></div>
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|
<div class="line"><a id="l00947" name="l00947"></a><span class="lineno"> 947</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> var_id(0); var_id < num_variables; ++var_id) {</div>
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|
<div class="line"><a id="l00948" name="l00948"></a><span class="lineno"> 948</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_variable_proto.html">MPVariableProto</a>& mp_var = mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(var_id);</div>
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|
<div class="line"><a id="l00949" name="l00949"></a><span class="lineno"> 949</span> problem-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#aab21a516e3dd1fd8618bad2121dbce43">add_var_names</a>(mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a24dcbf29c0d6cd766009a182a6484e3b">name</a>());</div>
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|
<div class="line"><a id="l00950" name="l00950"></a><span class="lineno"> 950</span> </div>
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|
<div class="line"><a id="l00951" name="l00951"></a><span class="lineno"> 951</span> <span class="comment">// This will be changed to false as soon as we detect the variable to be</span></div>
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|
<div class="line"><a id="l00952" name="l00952"></a><span class="lineno"> 952</span> <span class="comment">// non-binary. This is done this way so we can display a nice error message</span></div>
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|
<div class="line"><a id="l00953" name="l00953"></a><span class="lineno"> 953</span> <span class="comment">// before aborting the function and returning false.</span></div>
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|
<div class="line"><a id="l00954" name="l00954"></a><span class="lineno"> 954</span> <span class="keywordtype">bool</span> is_binary = mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a90a6759a08c3d72c4193a0a75aa581bc">is_integer</a>();</div>
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|
<div class="line"><a id="l00955" name="l00955"></a><span class="lineno"> 955</span> </div>
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|
<div class="line"><a id="l00956" name="l00956"></a><span class="lineno"> 956</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> lb = mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a9748ce3280b2d4c16a2cd38a480b9c7c">lower_bound</a>();</div>
|
|
<div class="line"><a id="l00957" name="l00957"></a><span class="lineno"> 957</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> ub = mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a5158072d27a176fc38524893183d6527">upper_bound</a>();</div>
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|
<div class="line"><a id="l00958" name="l00958"></a><span class="lineno"> 958</span> <span class="keywordflow">if</span> (lb <= -1.0) is_binary = <span class="keyword">false</span>;</div>
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|
<div class="line"><a id="l00959" name="l00959"></a><span class="lineno"> 959</span> <span class="keywordflow">if</span> (ub >= 2.0) is_binary = <span class="keyword">false</span>;</div>
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|
<div class="line"><a id="l00960" name="l00960"></a><span class="lineno"> 960</span> <span class="keywordflow">if</span> (is_binary) {</div>
|
|
<div class="line"><a id="l00961" name="l00961"></a><span class="lineno"> 961</span> <span class="comment">// 4 cases.</span></div>
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|
<div class="line"><a id="l00962" name="l00962"></a><span class="lineno"> 962</span> <span class="keywordflow">if</span> (lb <= 0.0 && ub >= 1.0) {</div>
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|
<div class="line"><a id="l00963" name="l00963"></a><span class="lineno"> 963</span> <span class="comment">// Binary variable. Ok.</span></div>
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|
<div class="line"><a id="l00964" name="l00964"></a><span class="lineno"> 964</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (lb <= 1.0 && ub >= 1.0) {</div>
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|
<div class="line"><a id="l00965" name="l00965"></a><span class="lineno"> 965</span> <span class="comment">// Fixed variable at 1.</span></div>
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|
<div class="line"><a id="l00966" name="l00966"></a><span class="lineno"> 966</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html">LinearBooleanConstraint</a>* constraint = problem-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#a6856053080805ee6b73c5c6ad1ea790e">add_constraints</a>();</div>
|
|
<div class="line"><a id="l00967" name="l00967"></a><span class="lineno"> 967</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a7bfd395572164d0db0b65e1f0c3e0f70">set_lower_bound</a>(1);</div>
|
|
<div class="line"><a id="l00968" name="l00968"></a><span class="lineno"> 968</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a686d9582678106855c2cb13931813662">set_upper_bound</a>(1);</div>
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<div class="line"><a id="l00969" name="l00969"></a><span class="lineno"> 969</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a9abd20cd5c98c0a4535d168a1c7bb18e">add_literals</a>(var_id + 1);</div>
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<div class="line"><a id="l00970" name="l00970"></a><span class="lineno"> 970</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a0b5c32523f34a0ccc95d2340f6aaca3d">add_coefficients</a>(1);</div>
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<div class="line"><a id="l00971" name="l00971"></a><span class="lineno"> 971</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (lb <= 0.0 && ub >= 0.0) {</div>
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<div class="line"><a id="l00972" name="l00972"></a><span class="lineno"> 972</span> <span class="comment">// Fixed variable at 0.</span></div>
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<div class="line"><a id="l00973" name="l00973"></a><span class="lineno"> 973</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html">LinearBooleanConstraint</a>* constraint = problem-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#a6856053080805ee6b73c5c6ad1ea790e">add_constraints</a>();</div>
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<div class="line"><a id="l00974" name="l00974"></a><span class="lineno"> 974</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a7bfd395572164d0db0b65e1f0c3e0f70">set_lower_bound</a>(0);</div>
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<div class="line"><a id="l00975" name="l00975"></a><span class="lineno"> 975</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a686d9582678106855c2cb13931813662">set_upper_bound</a>(0);</div>
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<div class="line"><a id="l00976" name="l00976"></a><span class="lineno"> 976</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a9abd20cd5c98c0a4535d168a1c7bb18e">add_literals</a>(var_id + 1);</div>
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<div class="line"><a id="l00977" name="l00977"></a><span class="lineno"> 977</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a0b5c32523f34a0ccc95d2340f6aaca3d">add_coefficients</a>(1);</div>
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<div class="line"><a id="l00978" name="l00978"></a><span class="lineno"> 978</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00979" name="l00979"></a><span class="lineno"> 979</span> <span class="comment">// No possible integer value!</span></div>
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<div class="line"><a id="l00980" name="l00980"></a><span class="lineno"> 980</span> is_binary = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00981" name="l00981"></a><span class="lineno"> 981</span> }</div>
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<div class="line"><a id="l00982" name="l00982"></a><span class="lineno"> 982</span> }</div>
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<div class="line"><a id="l00983" name="l00983"></a><span class="lineno"> 983</span> </div>
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<div class="line"><a id="l00984" name="l00984"></a><span class="lineno"> 984</span> <span class="comment">// Abort if the variable is not binary.</span></div>
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<div class="line"><a id="l00985" name="l00985"></a><span class="lineno"> 985</span> <span class="keywordflow">if</span> (!is_binary) {</div>
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<div class="line"><a id="l00986" name="l00986"></a><span class="lineno"> 986</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7">WARNING</a>) << <span class="stringliteral">"The variable #"</span> << var_id << <span class="stringliteral">" with name "</span></div>
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<div class="line"><a id="l00987" name="l00987"></a><span class="lineno"> 987</span> << mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a24dcbf29c0d6cd766009a182a6484e3b">name</a>() << <span class="stringliteral">" is not binary. "</span></div>
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<div class="line"><a id="l00988" name="l00988"></a><span class="lineno"> 988</span> << <span class="stringliteral">"lb: "</span> << lb << <span class="stringliteral">" ub: "</span> << ub;</div>
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<div class="line"><a id="l00989" name="l00989"></a><span class="lineno"> 989</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00990" name="l00990"></a><span class="lineno"> 990</span> }</div>
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<div class="line"><a id="l00991" name="l00991"></a><span class="lineno"> 991</span> }</div>
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<div class="line"><a id="l00992" name="l00992"></a><span class="lineno"> 992</span> </div>
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<div class="line"><a id="l00993" name="l00993"></a><span class="lineno"> 993</span> <span class="comment">// Variables needed to scale the double coefficients into int64_t.</span></div>
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<div class="line"><a id="l00994" name="l00994"></a><span class="lineno"> 994</span> <span class="keyword">const</span> int64_t kInt64Max = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::numeric_limits<int64_t>::max</a>();</div>
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<div class="line"><a id="l00995" name="l00995"></a><span class="lineno"> 995</span> <span class="keywordtype">double</span> max_relative_error = 0.0;</div>
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<div class="line"><a id="l00996" name="l00996"></a><span class="lineno"> 996</span> <span class="keywordtype">double</span> max_bound_error = 0.0;</div>
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<div class="line"><a id="l00997" name="l00997"></a><span class="lineno"> 997</span> <span class="keywordtype">double</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a">max_scaling_factor</a> = 0.0;</div>
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<div class="line"><a id="l00998" name="l00998"></a><span class="lineno"> 998</span> <span class="keywordtype">double</span> relative_error = 0.0;</div>
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<div class="line"><a id="l00999" name="l00999"></a><span class="lineno"> 999</span> <span class="keywordtype">double</span> scaling_factor = 0.0;</div>
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<div class="line"><a id="l01000" name="l01000"></a><span class="lineno"> 1000</span> std::vector<double> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>;</div>
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<div class="line"><a id="l01001" name="l01001"></a><span class="lineno"> 1001</span> </div>
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<div class="line"><a id="l01002" name="l01002"></a><span class="lineno"> 1002</span> <span class="comment">// Add all constraints.</span></div>
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<div class="line"><a id="l01003" name="l01003"></a><span class="lineno"> 1003</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_constraint_proto.html">MPConstraintProto</a>& mp_constraint : mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a1a8302446f7835e502a5aced4f29b3bf">constraint</a>()) {</div>
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<div class="line"><a id="l01004" name="l01004"></a><span class="lineno"> 1004</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html">LinearBooleanConstraint</a>* constraint = problem-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#a6856053080805ee6b73c5c6ad1ea790e">add_constraints</a>();</div>
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<div class="line"><a id="l01005" name="l01005"></a><span class="lineno"> 1005</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">set_name</a>(mp_constraint.name());</div>
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<div class="line"><a id="l01006" name="l01006"></a><span class="lineno"> 1006</span> </div>
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<div class="line"><a id="l01007" name="l01007"></a><span class="lineno"> 1007</span> <span class="comment">// First scale the coefficients of the constraints.</span></div>
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|
<div class="line"><a id="l01008" name="l01008"></a><span class="lineno"> 1008</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.clear();</div>
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|
<div class="line"><a id="l01009" name="l01009"></a><span class="lineno"> 1009</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_coeffs = mp_constraint.coefficient_size();</div>
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<div class="line"><a id="l01010" name="l01010"></a><span class="lineno"> 1010</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_coeffs; ++i) {</div>
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<div class="line"><a id="l01011" name="l01011"></a><span class="lineno"> 1011</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.push_back(mp_constraint.coefficient(i));</div>
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<div class="line"><a id="l01012" name="l01012"></a><span class="lineno"> 1012</span> }</div>
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<div class="line"><a id="l01013" name="l01013"></a><span class="lineno"> 1013</span> <a class="code hl_function" href="namespaceoperations__research.html#aae3359f1c2367d44e5cf9be5d5abc89f">GetBestScalingOfDoublesToInt64</a>(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, kInt64Max, &scaling_factor,</div>
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<div class="line"><a id="l01014" name="l01014"></a><span class="lineno"> 1014</span> &relative_error);</div>
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<div class="line"><a id="l01015" name="l01015"></a><span class="lineno"> 1015</span> <span class="keyword">const</span> int64_t gcd =</div>
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<div class="line"><a id="l01016" name="l01016"></a><span class="lineno"> 1016</span> <a class="code hl_function" href="namespaceoperations__research.html#aae2e6ed909e0cd5f240b885800f55c87">ComputeGcdOfRoundedDoubles</a>(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, scaling_factor);</div>
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|
<div class="line"><a id="l01017" name="l01017"></a><span class="lineno"> 1017</span> max_relative_error = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(relative_error, max_relative_error);</div>
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<div class="line"><a id="l01018" name="l01018"></a><span class="lineno"> 1018</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a">max_scaling_factor</a> = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(scaling_factor / gcd, <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a">max_scaling_factor</a>);</div>
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<div class="line"><a id="l01019" name="l01019"></a><span class="lineno"> 1019</span> </div>
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<div class="line"><a id="l01020" name="l01020"></a><span class="lineno"> 1020</span> <span class="keywordtype">double</span> bound_error = 0.0;</div>
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<div class="line"><a id="l01021" name="l01021"></a><span class="lineno"> 1021</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_coeffs; ++i) {</div>
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<div class="line"><a id="l01022" name="l01022"></a><span class="lineno"> 1022</span> <span class="keyword">const</span> <span class="keywordtype">double</span> scaled_value = mp_constraint.coefficient(i) * scaling_factor;</div>
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<div class="line"><a id="l01023" name="l01023"></a><span class="lineno"> 1023</span> bound_error += std::abs(round(scaled_value) - scaled_value);</div>
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<div class="line"><a id="l01024" name="l01024"></a><span class="lineno"> 1024</span> <span class="keyword">const</span> int64_t <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(round(scaled_value)) / gcd;</div>
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<div class="line"><a id="l01025" name="l01025"></a><span class="lineno"> 1025</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> != 0) {</div>
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<div class="line"><a id="l01026" name="l01026"></a><span class="lineno"> 1026</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a9abd20cd5c98c0a4535d168a1c7bb18e">add_literals</a>(mp_constraint.var_index(i) + 1);</div>
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<div class="line"><a id="l01027" name="l01027"></a><span class="lineno"> 1027</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a0b5c32523f34a0ccc95d2340f6aaca3d">add_coefficients</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
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<div class="line"><a id="l01028" name="l01028"></a><span class="lineno"> 1028</span> }</div>
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<div class="line"><a id="l01029" name="l01029"></a><span class="lineno"> 1029</span> }</div>
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<div class="line"><a id="l01030" name="l01030"></a><span class="lineno"> 1030</span> max_bound_error = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(max_bound_error, bound_error);</div>
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<div class="line"><a id="l01031" name="l01031"></a><span class="lineno"> 1031</span> </div>
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<div class="line"><a id="l01032" name="l01032"></a><span class="lineno"> 1032</span> <span class="comment">// Add the bounds. Note that we do not pass them to</span></div>
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<div class="line"><a id="l01033" name="l01033"></a><span class="lineno"> 1033</span> <span class="comment">// GetBestScalingOfDoublesToInt64() because we know that the sum of absolute</span></div>
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<div class="line"><a id="l01034" name="l01034"></a><span class="lineno"> 1034</span> <span class="comment">// coefficients of the constraint fit on an int64_t. If one of the scaled</span></div>
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<div class="line"><a id="l01035" name="l01035"></a><span class="lineno"> 1035</span> <span class="comment">// bound overflows, we don't care by how much because in this case the</span></div>
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<div class="line"><a id="l01036" name="l01036"></a><span class="lineno"> 1036</span> <span class="comment">// constraint is just trivial or unsatisfiable.</span></div>
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<div class="line"><a id="l01037" name="l01037"></a><span class="lineno"> 1037</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> lb = mp_constraint.lower_bound();</div>
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<div class="line"><a id="l01038" name="l01038"></a><span class="lineno"> 1038</span> <span class="keywordflow">if</span> (lb != -<a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a>) {</div>
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<div class="line"><a id="l01039" name="l01039"></a><span class="lineno"> 1039</span> <span class="keywordflow">if</span> (lb * scaling_factor > <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(kInt64Max)) {</div>
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<div class="line"><a id="l01040" name="l01040"></a><span class="lineno"> 1040</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7">WARNING</a>) << <span class="stringliteral">"A constraint is trivially unsatisfiable."</span>;</div>
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<div class="line"><a id="l01041" name="l01041"></a><span class="lineno"> 1041</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l01042" name="l01042"></a><span class="lineno"> 1042</span> }</div>
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<div class="line"><a id="l01043" name="l01043"></a><span class="lineno"> 1043</span> <span class="keywordflow">if</span> (lb * scaling_factor > -<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(kInt64Max)) {</div>
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<div class="line"><a id="l01044" name="l01044"></a><span class="lineno"> 1044</span> <span class="comment">// Otherwise, the constraint is not needed.</span></div>
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<div class="line"><a id="l01045" name="l01045"></a><span class="lineno"> 1045</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a7bfd395572164d0db0b65e1f0c3e0f70">set_lower_bound</a>(</div>
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<div class="line"><a id="l01046" name="l01046"></a><span class="lineno"> 1046</span> <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(round(lb * scaling_factor - bound_error)) /</div>
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<div class="line"><a id="l01047" name="l01047"></a><span class="lineno"> 1047</span> gcd);</div>
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<div class="line"><a id="l01048" name="l01048"></a><span class="lineno"> 1048</span> }</div>
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<div class="line"><a id="l01049" name="l01049"></a><span class="lineno"> 1049</span> }</div>
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<div class="line"><a id="l01050" name="l01050"></a><span class="lineno"> 1050</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> ub = mp_constraint.upper_bound();</div>
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<div class="line"><a id="l01051" name="l01051"></a><span class="lineno"> 1051</span> <span class="keywordflow">if</span> (ub != <a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a>) {</div>
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<div class="line"><a id="l01052" name="l01052"></a><span class="lineno"> 1052</span> <span class="keywordflow">if</span> (ub * scaling_factor < -<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(kInt64Max)) {</div>
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<div class="line"><a id="l01053" name="l01053"></a><span class="lineno"> 1053</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7">WARNING</a>) << <span class="stringliteral">"A constraint is trivially unsatisfiable."</span>;</div>
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<div class="line"><a id="l01054" name="l01054"></a><span class="lineno"> 1054</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l01055" name="l01055"></a><span class="lineno"> 1055</span> }</div>
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<div class="line"><a id="l01056" name="l01056"></a><span class="lineno"> 1056</span> <span class="keywordflow">if</span> (ub * scaling_factor < <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(kInt64Max)) {</div>
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|
<div class="line"><a id="l01057" name="l01057"></a><span class="lineno"> 1057</span> <span class="comment">// Otherwise, the constraint is not needed.</span></div>
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<div class="line"><a id="l01058" name="l01058"></a><span class="lineno"> 1058</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a686d9582678106855c2cb13931813662">set_upper_bound</a>(</div>
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|
<div class="line"><a id="l01059" name="l01059"></a><span class="lineno"> 1059</span> <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(round(ub * scaling_factor + bound_error)) /</div>
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<div class="line"><a id="l01060" name="l01060"></a><span class="lineno"> 1060</span> gcd);</div>
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|
<div class="line"><a id="l01061" name="l01061"></a><span class="lineno"> 1061</span> }</div>
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<div class="line"><a id="l01062" name="l01062"></a><span class="lineno"> 1062</span> }</div>
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<div class="line"><a id="l01063" name="l01063"></a><span class="lineno"> 1063</span> }</div>
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<div class="line"><a id="l01064" name="l01064"></a><span class="lineno"> 1064</span> </div>
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<div class="line"><a id="l01065" name="l01065"></a><span class="lineno"> 1065</span> <span class="comment">// Display the error/scaling without taking into account the objective first.</span></div>
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<div class="line"><a id="l01066" name="l01066"></a><span class="lineno"> 1066</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>) << <span class="stringliteral">"Maximum constraint relative error: "</span> << max_relative_error;</div>
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<div class="line"><a id="l01067" name="l01067"></a><span class="lineno"> 1067</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>) << <span class="stringliteral">"Maximum constraint bound error: "</span> << max_bound_error;</div>
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<div class="line"><a id="l01068" name="l01068"></a><span class="lineno"> 1068</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>) << <span class="stringliteral">"Maximum constraint scaling factor: "</span> << <a class="code hl_variable" href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a">max_scaling_factor</a>;</div>
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<div class="line"><a id="l01069" name="l01069"></a><span class="lineno"> 1069</span> </div>
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<div class="line"><a id="l01070" name="l01070"></a><span class="lineno"> 1070</span> <span class="comment">// Add the objective.</span></div>
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<div class="line"><a id="l01071" name="l01071"></a><span class="lineno"> 1071</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.clear();</div>
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<div class="line"><a id="l01072" name="l01072"></a><span class="lineno"> 1072</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> var_id = 0; var_id < num_variables; ++var_id) {</div>
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<div class="line"><a id="l01073" name="l01073"></a><span class="lineno"> 1073</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_variable_proto.html">MPVariableProto</a>& mp_var = mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(var_id);</div>
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<div class="line"><a id="l01074" name="l01074"></a><span class="lineno"> 1074</span> <a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.push_back(mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a45d214423bb4cd180eff038c9efcf638">objective_coefficient</a>());</div>
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<div class="line"><a id="l01075" name="l01075"></a><span class="lineno"> 1075</span> }</div>
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<div class="line"><a id="l01076" name="l01076"></a><span class="lineno"> 1076</span> <a class="code hl_function" href="namespaceoperations__research.html#aae3359f1c2367d44e5cf9be5d5abc89f">GetBestScalingOfDoublesToInt64</a>(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, kInt64Max, &scaling_factor,</div>
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<div class="line"><a id="l01077" name="l01077"></a><span class="lineno"> 1077</span> &relative_error);</div>
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<div class="line"><a id="l01078" name="l01078"></a><span class="lineno"> 1078</span> <span class="keyword">const</span> int64_t gcd = <a class="code hl_function" href="namespaceoperations__research.html#aae2e6ed909e0cd5f240b885800f55c87">ComputeGcdOfRoundedDoubles</a>(<a class="code hl_variable" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, scaling_factor);</div>
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<div class="line"><a id="l01079" name="l01079"></a><span class="lineno"> 1079</span> max_relative_error = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(relative_error, max_relative_error);</div>
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<div class="line"><a id="l01080" name="l01080"></a><span class="lineno"> 1080</span> </div>
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<div class="line"><a id="l01081" name="l01081"></a><span class="lineno"> 1081</span> <span class="comment">// Display the objective error/scaling.</span></div>
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<div class="line"><a id="l01082" name="l01082"></a><span class="lineno"> 1082</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>) << <span class="stringliteral">"objective relative error: "</span> << relative_error;</div>
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<div class="line"><a id="l01083" name="l01083"></a><span class="lineno"> 1083</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>) << <span class="stringliteral">"objective scaling factor: "</span> << scaling_factor / gcd;</div>
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<div class="line"><a id="l01084" name="l01084"></a><span class="lineno"> 1084</span> </div>
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<div class="line"><a id="l01085" name="l01085"></a><span class="lineno"> 1085</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_objective.html">LinearObjective</a>* objective = problem-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#ae9827e8df25379290d5db3127d9f94d5">mutable_objective</a>();</div>
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<div class="line"><a id="l01086" name="l01086"></a><span class="lineno"> 1086</span> objective-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_objective.html#ac7453c28e1da85ea4728b31419c0d6b7">set_offset</a>(mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a6f3611559b9d19eb580c5768c963bd99">objective_offset</a>() * scaling_factor / gcd);</div>
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<div class="line"><a id="l01087" name="l01087"></a><span class="lineno"> 1087</span> </div>
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<div class="line"><a id="l01088" name="l01088"></a><span class="lineno"> 1088</span> <span class="comment">// Note that here we set the scaling factor for the inverse operation of</span></div>
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<div class="line"><a id="l01089" name="l01089"></a><span class="lineno"> 1089</span> <span class="comment">// getting the "true" objective value from the scaled one. Hence the inverse.</span></div>
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<div class="line"><a id="l01090" name="l01090"></a><span class="lineno"> 1090</span> objective-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_objective.html#af02334eb54337092e11b9a74312a4c25">set_scaling_factor</a>(1.0 / scaling_factor * gcd);</div>
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<div class="line"><a id="l01091" name="l01091"></a><span class="lineno"> 1091</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> var_id = 0; var_id < num_variables; ++var_id) {</div>
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<div class="line"><a id="l01092" name="l01092"></a><span class="lineno"> 1092</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_variable_proto.html">MPVariableProto</a>& mp_var = mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">variable</a>(var_id);</div>
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<div class="line"><a id="l01093" name="l01093"></a><span class="lineno"> 1093</span> <span class="keyword">const</span> int64_t <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> =</div>
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<div class="line"><a id="l01094" name="l01094"></a><span class="lineno"> 1094</span> <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(</div>
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<div class="line"><a id="l01095" name="l01095"></a><span class="lineno"> 1095</span> round(mp_var.<a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a45d214423bb4cd180eff038c9efcf638">objective_coefficient</a>() * scaling_factor)) /</div>
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<div class="line"><a id="l01096" name="l01096"></a><span class="lineno"> 1096</span> gcd;</div>
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<div class="line"><a id="l01097" name="l01097"></a><span class="lineno"> 1097</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> != 0) {</div>
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<div class="line"><a id="l01098" name="l01098"></a><span class="lineno"> 1098</span> objective-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_objective.html#a9abd20cd5c98c0a4535d168a1c7bb18e">add_literals</a>(var_id + 1);</div>
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<div class="line"><a id="l01099" name="l01099"></a><span class="lineno"> 1099</span> objective-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_objective.html#a0b5c32523f34a0ccc95d2340f6aaca3d">add_coefficients</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
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|
<div class="line"><a id="l01100" name="l01100"></a><span class="lineno"> 1100</span> }</div>
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<div class="line"><a id="l01101" name="l01101"></a><span class="lineno"> 1101</span> }</div>
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<div class="line"><a id="l01102" name="l01102"></a><span class="lineno"> 1102</span> </div>
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<div class="line"><a id="l01103" name="l01103"></a><span class="lineno"> 1103</span> <span class="comment">// If the problem was a maximization one, we need to modify the objective.</span></div>
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|
<div class="line"><a id="l01104" name="l01104"></a><span class="lineno"> 1104</span> <span class="keywordflow">if</span> (mp_model.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#ad3c37b53f974ee5f215d410d93841d63">maximize</a>()) <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aaf57d784624873d840a2589efa6ff1a1">ChangeOptimizationDirection</a>(problem);</div>
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<div class="line"><a id="l01105" name="l01105"></a><span class="lineno"> 1105</span> </div>
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<div class="line"><a id="l01106" name="l01106"></a><span class="lineno"> 1106</span> <span class="comment">// Test the precision of the conversion.</span></div>
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<div class="line"><a id="l01107" name="l01107"></a><span class="lineno"> 1107</span> <span class="keyword">const</span> <span class="keywordtype">double</span> kRelativeTolerance = 1e-8;</div>
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<div class="line"><a id="l01108" name="l01108"></a><span class="lineno"> 1108</span> <span class="keywordflow">if</span> (max_relative_error > kRelativeTolerance) {</div>
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<div class="line"><a id="l01109" name="l01109"></a><span class="lineno"> 1109</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7">WARNING</a>) << <span class="stringliteral">"The relative error during double -> int64_t conversion "</span></div>
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<div class="line"><a id="l01110" name="l01110"></a><span class="lineno"> 1110</span> << <span class="stringliteral">"is too high!"</span>;</div>
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<div class="line"><a id="l01111" name="l01111"></a><span class="lineno"> 1111</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l01112" name="l01112"></a><span class="lineno"> 1112</span> }</div>
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<div class="line"><a id="l01113" name="l01113"></a><span class="lineno"> 1113</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l01114" name="l01114"></a><span class="lineno"> 1114</span>}</div>
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<div class="line"><a id="l01115" name="l01115"></a><span class="lineno"> 1115</span> </div>
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<div class="line"><a id="l01116" name="l01116"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a4591e100a0f29a249169e5833995cd31"> 1116</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a4591e100a0f29a249169e5833995cd31">ConvertBooleanProblemToLinearProgram</a>(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html">LinearBooleanProblem</a>& problem,</div>
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<div class="line"><a id="l01117" name="l01117"></a><span class="lineno"> 1117</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="l01118" name="l01118"></a><span class="lineno"> 1118</span> lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#aa71d36872f416feaa853788a7a7a7ef8">Clear</a>();</div>
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<div class="line"><a id="l01119" name="l01119"></a><span class="lineno"> 1119</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < problem.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#aad5531f45ca462be2f1b7ee7a5cb1372">num_variables</a>(); ++i) {</div>
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<div class="line"><a id="l01120" name="l01120"></a><span class="lineno"> 1120</span> <span class="keyword">const</span> ColIndex <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a> = lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a695ac3d8db5a986f572711f2ef3a6a39">CreateNewVariable</a>();</div>
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<div class="line"><a id="l01121" name="l01121"></a><span class="lineno"> 1121</span> lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a7ddcdc56f25d075e18d62ddbcd3389b2">SetVariableType</a>(<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>, <a class="code hl_enumvalue" href="classoperations__research_1_1glop_1_1_linear_program.html#ac62972ff1b21a037e56530cde67309aba5d5cd46919fa987731fb2edefe0f2a0c">glop::LinearProgram::VariableType::INTEGER</a>);</div>
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<div class="line"><a id="l01122" name="l01122"></a><span class="lineno"> 1122</span> lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093">SetVariableBounds</a>(<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>, 0.0, 1.0);</div>
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<div class="line"><a id="l01123" name="l01123"></a><span class="lineno"> 1123</span> }</div>
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<div class="line"><a id="l01124" name="l01124"></a><span class="lineno"> 1124</span> </div>
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<div class="line"><a id="l01125" name="l01125"></a><span class="lineno"> 1125</span> <span class="comment">// Variables name are optional.</span></div>
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<div class="line"><a id="l01126" name="l01126"></a><span class="lineno"> 1126</span> <span class="keywordflow">if</span> (problem.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#a7d71d78013f83bc05711ba8bf7a60eb2">var_names_size</a>() != 0) {</div>
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<div class="line"><a id="l01127" name="l01127"></a><span class="lineno"> 1127</span> <a class="code hl_define" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(problem.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#a7d71d78013f83bc05711ba8bf7a60eb2">var_names_size</a>(), problem.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#aad5531f45ca462be2f1b7ee7a5cb1372">num_variables</a>());</div>
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<div class="line"><a id="l01128" name="l01128"></a><span class="lineno"> 1128</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < problem.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#aad5531f45ca462be2f1b7ee7a5cb1372">num_variables</a>(); ++i) {</div>
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<div class="line"><a id="l01129" name="l01129"></a><span class="lineno"> 1129</span> lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a45e12b3d1e2daa3e00bab9d7bf72f444">SetVariableName</a>(ColIndex(i), problem.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#ad142870eaf4c9ce09c346a4f51b5be60">var_names</a>(i));</div>
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<div class="line"><a id="l01130" name="l01130"></a><span class="lineno"> 1130</span> }</div>
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<div class="line"><a id="l01131" name="l01131"></a><span class="lineno"> 1131</span> }</div>
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<div class="line"><a id="l01132" name="l01132"></a><span class="lineno"> 1132</span> </div>
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<div class="line"><a id="l01133" name="l01133"></a><span class="lineno"> 1133</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html">LinearBooleanConstraint</a>& constraint : problem.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#ad0c9bce45c918e9aa67b70f53519ca37">constraints</a>()) {</div>
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<div class="line"><a id="l01134" name="l01134"></a><span class="lineno"> 1134</span> <span class="keyword">const</span> RowIndex constraint_index = lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#ad9d564651057c77b3f2ca1293134557f">CreateNewConstraint</a>();</div>
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<div class="line"><a id="l01135" name="l01135"></a><span class="lineno"> 1135</span> lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a1c4c019028d8b012b9d10e0a17bfaf4e">SetConstraintName</a>(constraint_index, constraint.name());</div>
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<div class="line"><a id="l01136" name="l01136"></a><span class="lineno"> 1136</span> <span class="keywordtype">double</span> sum = 0.0;</div>
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<div class="line"><a id="l01137" name="l01137"></a><span class="lineno"> 1137</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < constraint.literals_size(); ++i) {</div>
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<div class="line"><a id="l01138" name="l01138"></a><span class="lineno"> 1138</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a> = constraint.literals(i);</div>
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<div class="line"><a id="l01139" name="l01139"></a><span class="lineno"> 1139</span> <span class="keyword">const</span> <span class="keywordtype">double</span> coeff = constraint.coefficients(i);</div>
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<div class="line"><a id="l01140" name="l01140"></a><span class="lineno"> 1140</span> <span class="keyword">const</span> ColIndex variable_index = ColIndex(abs(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>) - 1);</div>
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<div class="line"><a id="l01141" name="l01141"></a><span class="lineno"> 1141</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a> < 0) {</div>
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<div class="line"><a id="l01142" name="l01142"></a><span class="lineno"> 1142</span> sum += coeff;</div>
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<div class="line"><a id="l01143" name="l01143"></a><span class="lineno"> 1143</span> lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a2d695f450ae446d5d9c225b991f8d88e">SetCoefficient</a>(constraint_index, variable_index, -coeff);</div>
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<div class="line"><a id="l01144" name="l01144"></a><span class="lineno"> 1144</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l01145" name="l01145"></a><span class="lineno"> 1145</span> lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a2d695f450ae446d5d9c225b991f8d88e">SetCoefficient</a>(constraint_index, variable_index, coeff);</div>
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<div class="line"><a id="l01146" name="l01146"></a><span class="lineno"> 1146</span> }</div>
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<div class="line"><a id="l01147" name="l01147"></a><span class="lineno"> 1147</span> }</div>
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<div class="line"><a id="l01148" name="l01148"></a><span class="lineno"> 1148</span> lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a62b98dec38b6506442f9fc63f1a9b88f">SetConstraintBounds</a>(</div>
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|
<div class="line"><a id="l01149" name="l01149"></a><span class="lineno"> 1149</span> constraint_index,</div>
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<div class="line"><a id="l01150" name="l01150"></a><span class="lineno"> 1150</span> constraint.has_lower_bound() ? constraint.lower_bound() - sum</div>
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|
<div class="line"><a id="l01151" name="l01151"></a><span class="lineno"> 1151</span> : -<a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a>,</div>
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|
<div class="line"><a id="l01152" name="l01152"></a><span class="lineno"> 1152</span> constraint.has_upper_bound() ? constraint.upper_bound() - sum</div>
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|
<div class="line"><a id="l01153" name="l01153"></a><span class="lineno"> 1153</span> : <a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a>);</div>
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|
<div class="line"><a id="l01154" name="l01154"></a><span class="lineno"> 1154</span> }</div>
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|
<div class="line"><a id="l01155" name="l01155"></a><span class="lineno"> 1155</span> </div>
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<div class="line"><a id="l01156" name="l01156"></a><span class="lineno"> 1156</span> <span class="comment">// Objective.</span></div>
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<div class="line"><a id="l01157" name="l01157"></a><span class="lineno"> 1157</span> {</div>
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<div class="line"><a id="l01158" name="l01158"></a><span class="lineno"> 1158</span> <span class="keywordtype">double</span> sum = 0.0;</div>
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<div class="line"><a id="l01159" name="l01159"></a><span class="lineno"> 1159</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_objective.html">LinearObjective</a>& objective = problem.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#a9fd8f81a798fd34a843b007c10e40d6b">objective</a>();</div>
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|
<div class="line"><a id="l01160" name="l01160"></a><span class="lineno"> 1160</span> <span class="keyword">const</span> <span class="keywordtype">double</span> scaling_factor = objective.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_objective.html#a9e32504c3f1bddb0f25f1386ecf7987b">scaling_factor</a>();</div>
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|
<div class="line"><a id="l01161" name="l01161"></a><span class="lineno"> 1161</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < objective.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_objective.html#a72d41feda9a93c11089d3d99d6270999">literals_size</a>(); ++i) {</div>
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<div class="line"><a id="l01162" name="l01162"></a><span class="lineno"> 1162</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a> = objective.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_objective.html#ae257a6514082fdcf3a9f33dda44c40b7">literals</a>(i);</div>
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<div class="line"><a id="l01163" name="l01163"></a><span class="lineno"> 1163</span> <span class="keyword">const</span> <span class="keywordtype">double</span> coeff =</div>
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<div class="line"><a id="l01164" name="l01164"></a><span class="lineno"> 1164</span> <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(objective.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_objective.html#a63e564949c709325f7c31376b8db8b64">coefficients</a>(i)) * scaling_factor;</div>
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|
<div class="line"><a id="l01165" name="l01165"></a><span class="lineno"> 1165</span> <span class="keyword">const</span> ColIndex variable_index = ColIndex(abs(<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>) - 1);</div>
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|
<div class="line"><a id="l01166" name="l01166"></a><span class="lineno"> 1166</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a> < 0) {</div>
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|
<div class="line"><a id="l01167" name="l01167"></a><span class="lineno"> 1167</span> sum += coeff;</div>
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|
<div class="line"><a id="l01168" name="l01168"></a><span class="lineno"> 1168</span> lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9">SetObjectiveCoefficient</a>(variable_index, -coeff);</div>
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|
<div class="line"><a id="l01169" name="l01169"></a><span class="lineno"> 1169</span> } <span class="keywordflow">else</span> {</div>
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|
<div class="line"><a id="l01170" name="l01170"></a><span class="lineno"> 1170</span> lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9">SetObjectiveCoefficient</a>(variable_index, coeff);</div>
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|
<div class="line"><a id="l01171" name="l01171"></a><span class="lineno"> 1171</span> }</div>
|
|
<div class="line"><a id="l01172" name="l01172"></a><span class="lineno"> 1172</span> }</div>
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|
<div class="line"><a id="l01173" name="l01173"></a><span class="lineno"> 1173</span> lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a2a29cc40908e09b0c565ceea15b77d89">SetObjectiveOffset</a>((sum + objective.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_objective.html#a96ffc785b7b2135c7980c985883ffdd3">offset</a>()) * scaling_factor);</div>
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|
<div class="line"><a id="l01174" name="l01174"></a><span class="lineno"> 1174</span> lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#ae3201a343d8df987411b55830bff7fa3">SetMaximizationProblem</a>(scaling_factor < 0);</div>
|
|
<div class="line"><a id="l01175" name="l01175"></a><span class="lineno"> 1175</span> }</div>
|
|
<div class="line"><a id="l01176" name="l01176"></a><span class="lineno"> 1176</span> </div>
|
|
<div class="line"><a id="l01177" name="l01177"></a><span class="lineno"> 1177</span> lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#abfc30f91ab75c6f4552003f777672e74">CleanUp</a>();</div>
|
|
<div class="line"><a id="l01178" name="l01178"></a><span class="lineno"> 1178</span>}</div>
|
|
<div class="line"><a id="l01179" name="l01179"></a><span class="lineno"> 1179</span> </div>
|
|
<div class="line"><a id="l01180" name="l01180"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#ab7cca71116da1e5640ad896f2bf46028"> 1180</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ab7cca71116da1e5640ad896f2bf46028">FixVariablesFromSat</a>(<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>& solver, <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="l01181" name="l01181"></a><span class="lineno"> 1181</span> <span class="keywordtype">int</span> num_fixed_variables = 0;</div>
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|
<div class="line"><a id="l01182" name="l01182"></a><span class="lineno"> 1182</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_trail.html">Trail</a>& trail = solver.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a5b06f24fb581de78b321dfd793931439">LiteralTrail</a>();</div>
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|
<div class="line"><a id="l01183" name="l01183"></a><span class="lineno"> 1183</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < trail.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#a8ef12397d1682615bc3108c397734179">Index</a>(); ++i) {</div>
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|
<div class="line"><a id="l01184" name="l01184"></a><span class="lineno"> 1184</span> <span class="keyword">const</span> BooleanVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = trail[i].Variable();</div>
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|
<div class="line"><a id="l01185" name="l01185"></a><span class="lineno"> 1185</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = trail[i].IsPositive() ? 1.0 : 0.0;</div>
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|
<div class="line"><a id="l01186" name="l01186"></a><span class="lineno"> 1186</span> <span class="keywordflow">if</span> (trail.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_trail.html#aba78b12088909fb59dbdd0cb064412ae">Info</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>).<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_assignment_info.html#a6a330c3b2adf87bfa27e9a9450d8bc40">level</a> == 0) {</div>
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|
<div class="line"><a id="l01187" name="l01187"></a><span class="lineno"> 1187</span> ++num_fixed_variables;</div>
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|
<div class="line"><a id="l01188" name="l01188"></a><span class="lineno"> 1188</span> lp-><a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093">SetVariableBounds</a>(ColIndex(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>.value()), <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>, <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
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|
<div class="line"><a id="l01189" name="l01189"></a><span class="lineno"> 1189</span> }</div>
|
|
<div class="line"><a id="l01190" name="l01190"></a><span class="lineno"> 1190</span> }</div>
|
|
<div class="line"><a id="l01191" name="l01191"></a><span class="lineno"> 1191</span> <span class="keywordflow">return</span> num_fixed_variables;</div>
|
|
<div class="line"><a id="l01192" name="l01192"></a><span class="lineno"> 1192</span>}</div>
|
|
<div class="line"><a id="l01193" name="l01193"></a><span class="lineno"> 1193</span> </div>
|
|
<div class="line"><a id="l01194" name="l01194"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a0ce1f2f17b7ce984fbfc526d6c04f337"> 1194</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a0ce1f2f17b7ce984fbfc526d6c04f337">SolveLpAndUseSolutionForSatAssignmentPreference</a>(</div>
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|
<div class="line"><a id="l01195" name="l01195"></a><span class="lineno"> 1195</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1glop_1_1_linear_program.html">glop::LinearProgram</a>& lp, <a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* sat_solver,</div>
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|
<div class="line"><a id="l01196" name="l01196"></a><span class="lineno"> 1196</span> <span class="keywordtype">double</span> max_time_in_seconds) {</div>
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|
<div class="line"><a id="l01197" name="l01197"></a><span class="lineno"> 1197</span> <a class="code hl_class" href="classoperations__research_1_1glop_1_1_l_p_solver.html">glop::LPSolver</a> solver;</div>
|
|
<div class="line"><a id="l01198" name="l01198"></a><span class="lineno"> 1198</span> <a class="code hl_class" href="classoperations__research_1_1glop_1_1_glop_parameters.html">glop::GlopParameters</a> glop_parameters;</div>
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|
<div class="line"><a id="l01199" name="l01199"></a><span class="lineno"> 1199</span> glop_parameters.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_glop_parameters.html#ad7217afa0f5bd97642d0d2291068c7f9">set_max_time_in_seconds</a>(max_time_in_seconds);</div>
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|
<div class="line"><a id="l01200" name="l01200"></a><span class="lineno"> 1200</span> solver.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_l_p_solver.html#ae7202d055b6b172a8a1da4f5b136f9ea">SetParameters</a>(glop_parameters);</div>
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|
<div class="line"><a id="l01201" name="l01201"></a><span class="lineno"> 1201</span> <span class="keyword">const</span> <a class="code hl_enumeration" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493">glop::ProblemStatus</a>& status = solver.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_l_p_solver.html#ad0677fd7b636de2bffe3cffca65dcd20">Solve</a>(lp);</div>
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|
<div class="line"><a id="l01202" name="l01202"></a><span class="lineno"> 1202</span> <span class="keywordflow">if</span> (status != <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493af00c8dbdd6e1f11bdae06be94277d293">glop::ProblemStatus::OPTIMAL</a> &&</div>
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|
<div class="line"><a id="l01203" name="l01203"></a><span class="lineno"> 1203</span> status != <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493a0beacd9ca195de65e685252f1b46b954">glop::ProblemStatus::IMPRECISE</a> &&</div>
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|
<div class="line"><a id="l01204" name="l01204"></a><span class="lineno"> 1204</span> status != <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493a2dcc8f5d91cb2aa2065b8305bf2d5cbd">glop::ProblemStatus::PRIMAL_FEASIBLE</a>) {</div>
|
|
<div class="line"><a id="l01205" name="l01205"></a><span class="lineno"> 1205</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l01206" name="l01206"></a><span class="lineno"> 1206</span> }</div>
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|
<div class="line"><a id="l01207" name="l01207"></a><span class="lineno"> 1207</span> <span class="keywordflow">for</span> (ColIndex <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>(0); <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a> < lp.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871">num_variables</a>(); ++<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>) {</div>
|
|
<div class="line"><a id="l01208" name="l01208"></a><span class="lineno"> 1208</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = solver.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_l_p_solver.html#ac5d36607cb29127a9ce5f6d6e7c140eb">variable_values</a>()[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>];</div>
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|
<div class="line"><a id="l01209" name="l01209"></a><span class="lineno"> 1209</span> sat_solver-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a955786dcbe82b7c4dc9924a5473ac1e8">SetAssignmentPreference</a>(</div>
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<div class="line"><a id="l01210" name="l01210"></a><span class="lineno"> 1210</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(BooleanVariable(<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>.value()), round(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>) == 1),</div>
|
|
<div class="line"><a id="l01211" name="l01211"></a><span class="lineno"> 1211</span> 1 - std::abs(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> - round(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>)));</div>
|
|
<div class="line"><a id="l01212" name="l01212"></a><span class="lineno"> 1212</span> }</div>
|
|
<div class="line"><a id="l01213" name="l01213"></a><span class="lineno"> 1213</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l01214" name="l01214"></a><span class="lineno"> 1214</span>}</div>
|
|
<div class="line"><a id="l01215" name="l01215"></a><span class="lineno"> 1215</span> </div>
|
|
<div class="line"><a id="l01216" name="l01216"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#aa46871f0150f3db9f9fdcbd1049aadaa"> 1216</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aa46871f0150f3db9f9fdcbd1049aadaa">SolveLpAndUseIntegerVariableToStartLNS</a>(<span class="keyword">const</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="l01217" name="l01217"></a><span class="lineno"> 1217</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html">LinearBooleanProblem</a>* problem) {</div>
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<div class="line"><a id="l01218" name="l01218"></a><span class="lineno"> 1218</span> <a class="code hl_class" href="classoperations__research_1_1glop_1_1_l_p_solver.html">glop::LPSolver</a> solver;</div>
|
|
<div class="line"><a id="l01219" name="l01219"></a><span class="lineno"> 1219</span> <span class="keyword">const</span> <a class="code hl_enumeration" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493">glop::ProblemStatus</a>& status = solver.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_l_p_solver.html#ad0677fd7b636de2bffe3cffca65dcd20">Solve</a>(lp);</div>
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|
<div class="line"><a id="l01220" name="l01220"></a><span class="lineno"> 1220</span> <span class="keywordflow">if</span> (status != <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493af00c8dbdd6e1f11bdae06be94277d293">glop::ProblemStatus::OPTIMAL</a> &&</div>
|
|
<div class="line"><a id="l01221" name="l01221"></a><span class="lineno"> 1221</span> status != <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493a2dcc8f5d91cb2aa2065b8305bf2d5cbd">glop::ProblemStatus::PRIMAL_FEASIBLE</a>)</div>
|
|
<div class="line"><a id="l01222" name="l01222"></a><span class="lineno"> 1222</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l01223" name="l01223"></a><span class="lineno"> 1223</span> <span class="keywordtype">int</span> num_variable_fixed = 0;</div>
|
|
<div class="line"><a id="l01224" name="l01224"></a><span class="lineno"> 1224</span> <span class="keywordflow">for</span> (ColIndex <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>(0); <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a> < lp.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871">num_variables</a>(); ++<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>) {</div>
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<div class="line"><a id="l01225" name="l01225"></a><span class="lineno"> 1225</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> tolerance = 1e-5;</div>
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<div class="line"><a id="l01226" name="l01226"></a><span class="lineno"> 1226</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = solver.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_l_p_solver.html#ac5d36607cb29127a9ce5f6d6e7c140eb">variable_values</a>()[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>];</div>
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<div class="line"><a id="l01227" name="l01227"></a><span class="lineno"> 1227</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> > 1 - tolerance) {</div>
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<div class="line"><a id="l01228" name="l01228"></a><span class="lineno"> 1228</span> ++num_variable_fixed;</div>
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<div class="line"><a id="l01229" name="l01229"></a><span class="lineno"> 1229</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html">LinearBooleanConstraint</a>* constraint = problem-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#a6856053080805ee6b73c5c6ad1ea790e">add_constraints</a>();</div>
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<div class="line"><a id="l01230" name="l01230"></a><span class="lineno"> 1230</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a7bfd395572164d0db0b65e1f0c3e0f70">set_lower_bound</a>(1);</div>
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<div class="line"><a id="l01231" name="l01231"></a><span class="lineno"> 1231</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a686d9582678106855c2cb13931813662">set_upper_bound</a>(1);</div>
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<div class="line"><a id="l01232" name="l01232"></a><span class="lineno"> 1232</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a0b5c32523f34a0ccc95d2340f6aaca3d">add_coefficients</a>(1);</div>
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<div class="line"><a id="l01233" name="l01233"></a><span class="lineno"> 1233</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a9abd20cd5c98c0a4535d168a1c7bb18e">add_literals</a>(<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>.value() + 1);</div>
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<div class="line"><a id="l01234" name="l01234"></a><span class="lineno"> 1234</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> < tolerance) {</div>
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<div class="line"><a id="l01235" name="l01235"></a><span class="lineno"> 1235</span> ++num_variable_fixed;</div>
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<div class="line"><a id="l01236" name="l01236"></a><span class="lineno"> 1236</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html">LinearBooleanConstraint</a>* constraint = problem-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#a6856053080805ee6b73c5c6ad1ea790e">add_constraints</a>();</div>
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<div class="line"><a id="l01237" name="l01237"></a><span class="lineno"> 1237</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a7bfd395572164d0db0b65e1f0c3e0f70">set_lower_bound</a>(0);</div>
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<div class="line"><a id="l01238" name="l01238"></a><span class="lineno"> 1238</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a686d9582678106855c2cb13931813662">set_upper_bound</a>(0);</div>
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<div class="line"><a id="l01239" name="l01239"></a><span class="lineno"> 1239</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a0b5c32523f34a0ccc95d2340f6aaca3d">add_coefficients</a>(1);</div>
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<div class="line"><a id="l01240" name="l01240"></a><span class="lineno"> 1240</span> constraint-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a9abd20cd5c98c0a4535d168a1c7bb18e">add_literals</a>(<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>.value() + 1);</div>
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<div class="line"><a id="l01241" name="l01241"></a><span class="lineno"> 1241</span> }</div>
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<div class="line"><a id="l01242" name="l01242"></a><span class="lineno"> 1242</span> }</div>
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<div class="line"><a id="l01243" name="l01243"></a><span class="lineno"> 1243</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>) << <span class="stringliteral">"LNS with "</span> << num_variable_fixed << <span class="stringliteral">" fixed variables."</span>;</div>
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<div class="line"><a id="l01244" name="l01244"></a><span class="lineno"> 1244</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l01245" name="l01245"></a><span class="lineno"> 1245</span>}</div>
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<div class="line"><a id="l01246" name="l01246"></a><span class="lineno"> 1246</span> </div>
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<div class="line"><a id="l01247" name="l01247"></a><span class="lineno"> 1247</span>} <span class="comment">// namespace sat</span></div>
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<div class="line"><a id="l01248" name="l01248"></a><span class="lineno"> 1248</span>} <span class="comment">// namespace operations_research</span></div>
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<div class="ttc" id="aalldiff__cst_8cc_html_a26e6db9bcc64b584051ecc28171ed11f"><div class="ttname"><a href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">max</a></div><div class="ttdeci">int64_t max</div><div class="ttdef"><b>Definition:</b> <a href="alldiff__cst_8cc_source.html#l00140">alldiff_cst.cc:140</a></div></div>
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<div class="ttc" id="aalldiff__cst_8cc_html_ad10edae0a852d72fb76afb1c77735045"><div class="ttname"><a href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">min</a></div><div class="ttdeci">int64_t min</div><div class="ttdef"><b>Definition:</b> <a href="alldiff__cst_8cc_source.html#l00139">alldiff_cst.cc:139</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html"><div class="ttname"><a href="base_2logging_8h.html">logging.h</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a09f7d88282cf92c9f231270ac113e5c6"><div class="ttname"><a href="base_2logging_8h.html#a09f7d88282cf92c9f231270ac113e5c6">LOG_IF</a></div><div class="ttdeci">#define LOG_IF(severity, condition)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00475">base/logging.h:475</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a3e1cfef60e774a81f30eaddf26a3a274"><div class="ttname"><a href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a></div><div class="ttdeci">#define CHECK(condition)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00491">base/logging.h:491</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a46e69120fbd3b36e6960e096d23b66f0"><div class="ttname"><a href="base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0">DCHECK_NE</a></div><div class="ttdeci">#define DCHECK_NE(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00887">base/logging.h:887</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a7c0ce053b28d53aa4eaf3eb7fb71663b"><div class="ttname"><a href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a></div><div class="ttdeci">#define CHECK_EQ(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00698">base/logging.h:698</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a7e03ec13560fa94a8fea569960d7efc6"><div class="ttname"><a href="base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6">CHECK_GT</a></div><div class="ttdeci">#define CHECK_GT(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00703">base/logging.h:703</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_ab25e01a2942b821d66371fc68d53f2eb"><div class="ttname"><a href="base_2logging_8h.html#ab25e01a2942b821d66371fc68d53f2eb">CHECK_NE</a></div><div class="ttdeci">#define CHECK_NE(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00699">base/logging.h:699</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_accad43a85d781d53381cd53a9894b6ae"><div class="ttname"><a href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a></div><div class="ttdeci">#define LOG(severity)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00416">base/logging.h:416</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_ae17f8119c108cf3070bad3449c7e0006"><div class="ttname"><a href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a></div><div class="ttdeci">#define DCHECK(condition)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00885">base/logging.h:885</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_afcaa7cadd41741bb855c2ada1d2ef927"><div class="ttname"><a href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a></div><div class="ttdeci">#define VLOG(verboselevel)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00979">base/logging.h:979</a></div></div>
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<div class="ttc" id="aboolean__problem_8h_html"><div class="ttname"><a href="boolean__problem_8h.html">boolean_problem.h</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_constraint_proto_html"><div class="ttname"><a href="classoperations__research_1_1_m_p_constraint_proto.html">operations_research::MPConstraintProto</a></div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l00507">linear_solver.pb.h:508</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_constraint_proto_html_a422ccbcb51f6edc2f80ffe7cd7ccacb7"><div class="ttname"><a href="classoperations__research_1_1_m_p_constraint_proto.html#a422ccbcb51f6edc2f80ffe7cd7ccacb7">operations_research::MPConstraintProto::var_index</a></div><div class="ttdeci">::PROTOBUF_NAMESPACE_ID::int32 var_index(int index) const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l04965">linear_solver.pb.h:4965</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_general_constraint_proto_html"><div class="ttname"><a href="classoperations__research_1_1_m_p_general_constraint_proto.html">operations_research::MPGeneralConstraintProto</a></div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l00761">linear_solver.pb.h:762</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_general_constraint_proto_html_a62ad97ce87eebedbf02689673fdd7ba8ace5d280d5b6fc0a47041b6e62e4f45b3"><div class="ttname"><a href="classoperations__research_1_1_m_p_general_constraint_proto.html#a62ad97ce87eebedbf02689673fdd7ba8ace5d280d5b6fc0a47041b6e62e4f45b3">operations_research::MPGeneralConstraintProto::kOrConstraint</a></div><div class="ttdeci">@ kOrConstraint</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l00817">linear_solver.pb.h:817</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_general_constraint_proto_html_a62ad97ce87eebedbf02689673fdd7ba8adb73cf3a9cba115e1da4c121570552df"><div class="ttname"><a href="classoperations__research_1_1_m_p_general_constraint_proto.html#a62ad97ce87eebedbf02689673fdd7ba8adb73cf3a9cba115e1da4c121570552df">operations_research::MPGeneralConstraintProto::kIndicatorConstraint</a></div><div class="ttdeci">@ kIndicatorConstraint</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l00812">linear_solver.pb.h:812</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_general_constraint_proto_html_a62ad97ce87eebedbf02689673fdd7ba8aec4b4d410cc58785223094f8ff100eb7"><div class="ttname"><a href="classoperations__research_1_1_m_p_general_constraint_proto.html#a62ad97ce87eebedbf02689673fdd7ba8aec4b4d410cc58785223094f8ff100eb7">operations_research::MPGeneralConstraintProto::kAndConstraint</a></div><div class="ttdeci">@ kAndConstraint</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l00816">linear_solver.pb.h:816</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#l02767">linear_solver.pb.h:2768</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_a1615418d90b3ab3c4bbd2d886e8cac37"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#a1615418d90b3ab3c4bbd2d886e8cac37">operations_research::MPModelProto::mutable_constraint</a></div><div class="ttdeci">::operations_research::MPConstraintProto * mutable_constraint(int index)</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l06966">linear_solver.pb.h:6966</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_a1a8302446f7835e502a5aced4f29b3bf"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#a1a8302446f7835e502a5aced4f29b3bf">operations_research::MPModelProto::constraint</a></div><div class="ttdeci">const ::operations_research::MPConstraintProto & constraint(int index) const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l06978">linear_solver.pb.h:6978</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_a233b16fc13c9664e5b818158019af13d"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#a233b16fc13c9664e5b818158019af13d">operations_research::MPModelProto::variable_size</a></div><div class="ttdeci">int variable_size() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l06920">linear_solver.pb.h:6920</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_a24dcbf29c0d6cd766009a182a6484e3b"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#a24dcbf29c0d6cd766009a182a6484e3b">operations_research::MPModelProto::name</a></div><div class="ttdeci">const std::string & name() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l07194">linear_solver.pb.h:7194</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_a39eeefb1884c54ecb292df0d83f9b267"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#a39eeefb1884c54ecb292df0d83f9b267">operations_research::MPModelProto::variable</a></div><div class="ttdeci">const ::operations_research::MPVariableProto & variable(int index) const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l06938">linear_solver.pb.h:6938</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_a6255cadc7041d64f5e850a5e3786b3fd"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#a6255cadc7041d64f5e850a5e3786b3fd">operations_research::MPModelProto::mutable_variable</a></div><div class="ttdeci">::operations_research::MPVariableProto * mutable_variable(int index)</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l06926">linear_solver.pb.h:6926</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_a6f3611559b9d19eb580c5768c963bd99"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#a6f3611559b9d19eb580c5768c963bd99">operations_research::MPModelProto::objective_offset</a></div><div class="ttdeci">double objective_offset() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l07079">linear_solver.pb.h:7079</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_ac25215d204acbcae9cbaf127f97ba1ee"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#ac25215d204acbcae9cbaf127f97ba1ee">operations_research::MPModelProto::general_constraint</a></div><div class="ttdeci">const ::operations_research::MPGeneralConstraintProto & general_constraint(int index) const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l07018">linear_solver.pb.h:7018</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_ad3c37b53f974ee5f215d410d93841d63"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#ad3c37b53f974ee5f215d410d93841d63">operations_research::MPModelProto::maximize</a></div><div class="ttdeci">bool maximize() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l07051">linear_solver.pb.h:7051</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_ae3687769a11bd922a263d0135f84a064"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#ae3687769a11bd922a263d0135f84a064">operations_research::MPModelProto::constraint_size</a></div><div class="ttdeci">int constraint_size() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l06960">linear_solver.pb.h:6960</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_variable_proto_html"><div class="ttname"><a href="classoperations__research_1_1_m_p_variable_proto.html">operations_research::MPVariableProto</a></div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l00272">linear_solver.pb.h:273</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_variable_proto_html_a03ba55fe410af563250a79463d9eb7c6"><div class="ttname"><a href="classoperations__research_1_1_m_p_variable_proto.html#a03ba55fe410af563250a79463d9eb7c6">operations_research::MPVariableProto::set_is_integer</a></div><div class="ttdeci">void set_is_integer(bool value)</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l04857">linear_solver.pb.h:4857</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_variable_proto_html_a24dcbf29c0d6cd766009a182a6484e3b"><div class="ttname"><a href="classoperations__research_1_1_m_p_variable_proto.html#a24dcbf29c0d6cd766009a182a6484e3b">operations_research::MPVariableProto::name</a></div><div class="ttdeci">const std::string & name() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l04874">linear_solver.pb.h:4874</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_variable_proto_html_a45d214423bb4cd180eff038c9efcf638"><div class="ttname"><a href="classoperations__research_1_1_m_p_variable_proto.html#a45d214423bb4cd180eff038c9efcf638">operations_research::MPVariableProto::objective_coefficient</a></div><div class="ttdeci">double objective_coefficient() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l04821">linear_solver.pb.h:4821</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_variable_proto_html_a5158072d27a176fc38524893183d6527"><div class="ttname"><a href="classoperations__research_1_1_m_p_variable_proto.html#a5158072d27a176fc38524893183d6527">operations_research::MPVariableProto::upper_bound</a></div><div class="ttdeci">double upper_bound() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l04793">linear_solver.pb.h:4793</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_variable_proto_html_a90a6759a08c3d72c4193a0a75aa581bc"><div class="ttname"><a href="classoperations__research_1_1_m_p_variable_proto.html#a90a6759a08c3d72c4193a0a75aa581bc">operations_research::MPVariableProto::is_integer</a></div><div class="ttdeci">bool is_integer() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l04849">linear_solver.pb.h:4849</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_variable_proto_html_a9748ce3280b2d4c16a2cd38a480b9c7c"><div class="ttname"><a href="classoperations__research_1_1_m_p_variable_proto.html#a9748ce3280b2d4c16a2cd38a480b9c7c">operations_research::MPVariableProto::lower_bound</a></div><div class="ttdeci">double lower_bound() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l04765">linear_solver.pb.h:4765</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_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_glop_parameters_html_ad7217afa0f5bd97642d0d2291068c7f9"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_glop_parameters.html#ad7217afa0f5bd97642d0d2291068c7f9">operations_research::glop::GlopParameters::set_max_time_in_seconds</a></div><div class="ttdeci">void set_max_time_in_seconds(double value)</div><div class="ttdef"><b>Definition:</b> <a href="parameters_8pb_8h_source.html#l02059">parameters.pb.h:2059</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_l_p_solver_html"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_l_p_solver.html">operations_research::glop::LPSolver</a></div><div class="ttdef"><b>Definition:</b> <a href="lp__solver_8h_source.html#l00029">lp_solver.h:29</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_l_p_solver_html_ac5d36607cb29127a9ce5f6d6e7c140eb"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_l_p_solver.html#ac5d36607cb29127a9ce5f6d6e7c140eb">operations_research::glop::LPSolver::variable_values</a></div><div class="ttdeci">const DenseRow & variable_values() const</div><div class="ttdef"><b>Definition:</b> <a href="lp__solver_8h_source.html#l00100">lp_solver.h:100</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_l_p_solver_html_ad0677fd7b636de2bffe3cffca65dcd20"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_l_p_solver.html#ad0677fd7b636de2bffe3cffca65dcd20">operations_research::glop::LPSolver::Solve</a></div><div class="ttdeci">ABSL_MUST_USE_RESULT ProblemStatus Solve(const LinearProgram &lp)</div><div class="ttdef"><b>Definition:</b> <a href="lp__solver_8cc_source.html#l00132">lp_solver.cc:132</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_l_p_solver_html_ae7202d055b6b172a8a1da4f5b136f9ea"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_l_p_solver.html#ae7202d055b6b172a8a1da4f5b136f9ea">operations_research::glop::LPSolver::SetParameters</a></div><div class="ttdeci">void SetParameters(const GlopParameters &parameters)</div><div class="ttdef"><b>Definition:</b> <a href="lp__solver_8cc_source.html#l00116">lp_solver.cc:116</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_a0fe7ba825c8c6cd1efdcff6dec631093"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093">operations_research::glop::LinearProgram::SetVariableBounds</a></div><div class="ttdeci">void SetVariableBounds(ColIndex col, Fractional lower_bound, Fractional upper_bound)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00249">lp_data.cc:249</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a1c4c019028d8b012b9d10e0a17bfaf4e"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a1c4c019028d8b012b9d10e0a17bfaf4e">operations_research::glop::LinearProgram::SetConstraintName</a></div><div class="ttdeci">void SetConstraintName(RowIndex row, absl::string_view name)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00245">lp_data.cc:245</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a2a29cc40908e09b0c565ceea15b77d89"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a2a29cc40908e09b0c565ceea15b77d89">operations_research::glop::LinearProgram::SetObjectiveOffset</a></div><div class="ttdeci">void SetObjectiveOffset(Fractional objective_offset)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00331">lp_data.cc:331</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a2d695f450ae446d5d9c225b991f8d88e"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a2d695f450ae446d5d9c225b991f8d88e">operations_research::glop::LinearProgram::SetCoefficient</a></div><div class="ttdeci">void SetCoefficient(RowIndex row, ColIndex col, Fractional value)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00317">lp_data.cc:317</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a45e12b3d1e2daa3e00bab9d7bf72f444"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a45e12b3d1e2daa3e00bab9d7bf72f444">operations_research::glop::LinearProgram::SetVariableName</a></div><div class="ttdeci">void SetVariableName(ColIndex col, absl::string_view name)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00232">lp_data.cc:232</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a62b98dec38b6506442f9fc63f1a9b88f"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a62b98dec38b6506442f9fc63f1a9b88f">operations_research::glop::LinearProgram::SetConstraintBounds</a></div><div class="ttdeci">void SetConstraintBounds(RowIndex row, Fractional lower_bound, Fractional upper_bound)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00309">lp_data.cc:309</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a695ac3d8db5a986f572711f2ef3a6a39"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a695ac3d8db5a986f572711f2ef3a6a39">operations_research::glop::LinearProgram::CreateNewVariable</a></div><div class="ttdeci">ColIndex CreateNewVariable()</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00162">lp_data.cc:162</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a7ddcdc56f25d075e18d62ddbcd3389b2"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a7ddcdc56f25d075e18d62ddbcd3389b2">operations_research::glop::LinearProgram::SetVariableType</a></div><div class="ttdeci">void SetVariableType(ColIndex col, VariableType type)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00236">lp_data.cc:236</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_aa71d36872f416feaa853788a7a7a7ef8"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#aa71d36872f416feaa853788a7a7a7ef8">operations_research::glop::LinearProgram::Clear</a></div><div class="ttdeci">void Clear()</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00134">lp_data.cc:134</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_ab5af7f232cddcd91f70be84c0d398ba9"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9">operations_research::glop::LinearProgram::SetObjectiveCoefficient</a></div><div class="ttdeci">void SetObjectiveCoefficient(ColIndex col, Fractional value)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00326">lp_data.cc:326</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_abfc30f91ab75c6f4552003f777672e74"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#abfc30f91ab75c6f4552003f777672e74">operations_research::glop::LinearProgram::CleanUp</a></div><div class="ttdeci">void CleanUp()</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00347">lp_data.cc:347</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_ac62972ff1b21a037e56530cde67309aba5d5cd46919fa987731fb2edefe0f2a0c"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#ac62972ff1b21a037e56530cde67309aba5d5cd46919fa987731fb2edefe0f2a0c">operations_research::glop::LinearProgram::VariableType::INTEGER</a></div><div class="ttdeci">@ INTEGER</div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_acd8437353d8dc686a75c98b5897dd871"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871">operations_research::glop::LinearProgram::num_variables</a></div><div class="ttdeci">ColIndex num_variables() const</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8h_source.html#l00205">lp_data.h:205</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_ad9d564651057c77b3f2ca1293134557f"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#ad9d564651057c77b3f2ca1293134557f">operations_research::glop::LinearProgram::CreateNewConstraint</a></div><div class="ttdeci">RowIndex CreateNewConstraint()</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00191">lp_data.cc:191</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_ae3201a343d8df987411b55830bff7fa3"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#ae3201a343d8df987411b55830bff7fa3">operations_research::glop::LinearProgram::SetMaximizationProblem</a></div><div class="ttdeci">void SetMaximizationProblem(bool maximize)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00343">lp_data.cc:343</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_bool_argument_proto_html_a7e9ec85488cc2f768942885d54b2df8c"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_bool_argument_proto.html#a7e9ec85488cc2f768942885d54b2df8c">operations_research::sat::BoolArgumentProto::mutable_literals</a></div><div class="ttdeci">::PROTOBUF_NAMESPACE_ID::RepeatedField< ::PROTOBUF_NAMESPACE_ID::int32 > * mutable_literals()</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l06973">cp_model.pb.h:6973</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_bool_argument_proto_html_a9abd20cd5c98c0a4535d168a1c7bb18e"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_bool_argument_proto.html#a9abd20cd5c98c0a4535d168a1c7bb18e">operations_research::sat::BoolArgumentProto::add_literals</a></div><div class="ttdeci">void add_literals(::PROTOBUF_NAMESPACE_ID::int32 value)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l06955">cp_model.pb.h:6955</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_constraint_proto_html_a74f7eb449a6e182b73c8b4a1dbf15ce6"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_constraint_proto.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">operations_research::sat::ConstraintProto::set_name</a></div><div class="ttdeci">void set_name(ArgT0 &&arg0, ArgT... args)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_constraint_proto_html_a962fe3316eafe5815027312585d5c4d6"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_constraint_proto.html#a962fe3316eafe5815027312585d5c4d6">operations_research::sat::ConstraintProto::mutable_bool_and</a></div><div class="ttdeci">::operations_research::sat::BoolArgumentProto * mutable_bool_and()</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l09556">cp_model.pb.h:9556</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_constraint_proto_html_acfab2074ffdcaf9686057126c5e29d38"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_constraint_proto.html#acfab2074ffdcaf9686057126c5e29d38">operations_research::sat::ConstraintProto::add_enforcement_literal</a></div><div class="ttdeci">void add_enforcement_literal(::PROTOBUF_NAMESPACE_ID::int32 value)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l09391">cp_model.pb.h:9391</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_constraint_proto_html_ae26e2a099b411b50dd1d4c6605837d0a"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_constraint_proto.html#ae26e2a099b411b50dd1d4c6605837d0a">operations_research::sat::ConstraintProto::mutable_bool_or</a></div><div class="ttdeci">::operations_research::sat::BoolArgumentProto * mutable_bool_or()</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l09482">cp_model.pb.h:9482</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_cp_model_proto_html_a6a4544ca20489d70e302f5d6d374a012"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_proto.html#a6a4544ca20489d70e302f5d6d374a012">operations_research::sat::CpModelProto::variables</a></div><div class="ttdeci">const ::operations_research::sat::IntegerVariableProto & variables(int index) const</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l12170">cp_model.pb.h:12170</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_proto_html_a74f7eb449a6e182b73c8b4a1dbf15ce6"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_proto.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">operations_research::sat::CpModelProto::set_name</a></div><div class="ttdeci">void set_name(ArgT0 &&arg0, ArgT... args)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_proto_html_aa0d2b6ddea7cb960b90423ac48f555bf"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_proto.html#aa0d2b6ddea7cb960b90423ac48f555bf">operations_research::sat::CpModelProto::Clear</a></div><div class="ttdeci">PROTOBUF_ATTRIBUTE_REINITIALIZES void Clear() final</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8cc_source.html#l09719">cp_model.pb.cc:9719</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_proto_html_ac01de597eeeff5521a8bf54568bf1373"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_proto.html#ac01de597eeeff5521a8bf54568bf1373">operations_research::sat::CpModelProto::add_constraints</a></div><div class="ttdeci">::operations_research::sat::ConstraintProto * add_constraints()</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l12217">cp_model.pb.h:12217</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_proto_html_ad03d1e2f94c4ca4c8004ac5355e6504a"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_proto.html#ad03d1e2f94c4ca4c8004ac5355e6504a">operations_research::sat::CpModelProto::add_variables</a></div><div class="ttdeci">::operations_research::sat::IntegerVariableProto * add_variables()</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l12177">cp_model.pb.h:12177</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_proto_html_ad3badc7aa3d94e81e0126edbfa452fda"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_proto.html#ad3badc7aa3d94e81e0126edbfa452fda">operations_research::sat::CpModelProto::mutable_objective</a></div><div class="ttdeci">::operations_research::sat::CpObjectiveProto * mutable_objective()</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l12293">cp_model.pb.h:12293</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_variable_proto_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_variable_proto.html">operations_research::sat::IntegerVariableProto</a></div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l00268">cp_model.pb.h:269</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_variable_proto_html_a2266c77ad6db8de45560357c1436e558"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#a2266c77ad6db8de45560357c1436e558">operations_research::sat::IntegerVariableProto::add_domain</a></div><div class="ttdeci">void add_domain(::PROTOBUF_NAMESPACE_ID::int64 value)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l06904">cp_model.pb.h:6904</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_variable_proto_html_a74f7eb449a6e182b73c8b4a1dbf15ce6"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">operations_research::sat::IntegerVariableProto::set_name</a></div><div class="ttdeci">void set_name(ArgT0 &&arg0, ArgT... args)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_variable_proto_html_aa9cb4e4ba977c364365487c63ed32446"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_variable_proto.html#aa9cb4e4ba977c364365487c63ed32446">operations_research::sat::IntegerVariableProto::domain</a></div><div class="ttdeci">::PROTOBUF_NAMESPACE_ID::int64 domain(int index) const</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l06893">cp_model.pb.h:6893</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_constraint_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html">operations_research::sat::LinearBooleanConstraint</a></div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l00083">boolean_problem.pb.h:84</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_constraint_html_a0b5c32523f34a0ccc95d2340f6aaca3d"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a0b5c32523f34a0ccc95d2340f6aaca3d">operations_research::sat::LinearBooleanConstraint::add_coefficients</a></div><div class="ttdeci">void add_coefficients(::PROTOBUF_NAMESPACE_ID::int64 value)</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01058">boolean_problem.pb.h:1058</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_constraint_html_a686d9582678106855c2cb13931813662"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a686d9582678106855c2cb13931813662">operations_research::sat::LinearBooleanConstraint::set_upper_bound</a></div><div class="ttdeci">void set_upper_bound(::PROTOBUF_NAMESPACE_ID::int64 value)</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01132">boolean_problem.pb.h:1132</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_constraint_html_a74f7eb449a6e182b73c8b4a1dbf15ce6"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">operations_research::sat::LinearBooleanConstraint::set_name</a></div><div class="ttdeci">void set_name(ArgT0 &&arg0, ArgT... args)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_constraint_html_a7bfd395572164d0db0b65e1f0c3e0f70"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a7bfd395572164d0db0b65e1f0c3e0f70">operations_research::sat::LinearBooleanConstraint::set_lower_bound</a></div><div class="ttdeci">void set_lower_bound(::PROTOBUF_NAMESPACE_ID::int64 value)</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01104">boolean_problem.pb.h:1104</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_constraint_html_a9abd20cd5c98c0a4535d168a1c7bb18e"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_constraint.html#a9abd20cd5c98c0a4535d168a1c7bb18e">operations_research::sat::LinearBooleanConstraint::add_literals</a></div><div class="ttdeci">void add_literals(::PROTOBUF_NAMESPACE_ID::int32 value)</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01011">boolean_problem.pb.h:1011</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_problem_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html">operations_research::sat::LinearBooleanProblem</a></div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l00702">boolean_problem.pb.h:703</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_problem_html_a6856053080805ee6b73c5c6ad1ea790e"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#a6856053080805ee6b73c5c6ad1ea790e">operations_research::sat::LinearBooleanProblem::add_constraints</a></div><div class="ttdeci">::operations_research::sat::LinearBooleanConstraint * add_constraints()</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01519">boolean_problem.pb.h:1519</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_problem_html_a74f7eb449a6e182b73c8b4a1dbf15ce6"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">operations_research::sat::LinearBooleanProblem::set_name</a></div><div class="ttdeci">void set_name(ArgT0 &&arg0, ArgT... args)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_problem_html_a7d71d78013f83bc05711ba8bf7a60eb2"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#a7d71d78013f83bc05711ba8bf7a60eb2">operations_research::sat::LinearBooleanProblem::var_names_size</a></div><div class="ttdeci">int var_names_size() const</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01624">boolean_problem.pb.h:1624</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_problem_html_a9c49f41aac27b985f50e0205c845a572"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#a9c49f41aac27b985f50e0205c845a572">operations_research::sat::LinearBooleanProblem::set_num_variables</a></div><div class="ttdeci">void set_num_variables(::PROTOBUF_NAMESPACE_ID::int32 value)</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01485">boolean_problem.pb.h:1485</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_problem_html_a9fd8f81a798fd34a843b007c10e40d6b"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#a9fd8f81a798fd34a843b007c10e40d6b">operations_research::sat::LinearBooleanProblem::objective</a></div><div class="ttdeci">const ::operations_research::sat::LinearObjective & objective() const</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01548">boolean_problem.pb.h:1548</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_problem_html_aa0d2b6ddea7cb960b90423ac48f555bf"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#aa0d2b6ddea7cb960b90423ac48f555bf">operations_research::sat::LinearBooleanProblem::Clear</a></div><div class="ttdeci">PROTOBUF_ATTRIBUTE_REINITIALIZES void Clear() final</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8cc_source.html#l01150">boolean_problem.pb.cc:1150</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_problem_html_aab21a516e3dd1fd8618bad2121dbce43"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#aab21a516e3dd1fd8618bad2121dbce43">operations_research::sat::LinearBooleanProblem::add_var_names</a></div><div class="ttdeci">std::string * add_var_names()</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01630">boolean_problem.pb.h:1630</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_problem_html_aad5531f45ca462be2f1b7ee7a5cb1372"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#aad5531f45ca462be2f1b7ee7a5cb1372">operations_research::sat::LinearBooleanProblem::num_variables</a></div><div class="ttdeci">::PROTOBUF_NAMESPACE_ID::int32 num_variables() const</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01477">boolean_problem.pb.h:1477</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_problem_html_ad0c9bce45c918e9aa67b70f53519ca37"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#ad0c9bce45c918e9aa67b70f53519ca37">operations_research::sat::LinearBooleanProblem::constraints</a></div><div class="ttdeci">const ::operations_research::sat::LinearBooleanConstraint & constraints(int index) const</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01512">boolean_problem.pb.h:1512</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_problem_html_ad142870eaf4c9ce09c346a4f51b5be60"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#ad142870eaf4c9ce09c346a4f51b5be60">operations_research::sat::LinearBooleanProblem::var_names</a></div><div class="ttdeci">const std::string & var_names(int index) const</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01638">boolean_problem.pb.h:1638</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_boolean_problem_html_ae9827e8df25379290d5db3127d9f94d5"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_boolean_problem.html#ae9827e8df25379290d5db3127d9f94d5">operations_research::sat::LinearBooleanProblem::mutable_objective</a></div><div class="ttdeci">::operations_research::sat::LinearObjective * mutable_objective()</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01595">boolean_problem.pb.h:1595</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_objective_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_objective.html">operations_research::sat::LinearObjective</a></div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l00321">boolean_problem.pb.h:322</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_objective_html_a0b5c32523f34a0ccc95d2340f6aaca3d"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_objective.html#a0b5c32523f34a0ccc95d2340f6aaca3d">operations_research::sat::LinearObjective::add_coefficients</a></div><div class="ttdeci">void add_coefficients(::PROTOBUF_NAMESPACE_ID::int64 value)</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01270">boolean_problem.pb.h:1270</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_objective_html_a63e564949c709325f7c31376b8db8b64"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_objective.html#a63e564949c709325f7c31376b8db8b64">operations_research::sat::LinearObjective::coefficients</a></div><div class="ttdeci">::PROTOBUF_NAMESPACE_ID::int64 coefficients(int index) const</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01259">boolean_problem.pb.h:1259</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_objective_html_a72d41feda9a93c11089d3d99d6270999"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_objective.html#a72d41feda9a93c11089d3d99d6270999">operations_research::sat::LinearObjective::literals_size</a></div><div class="ttdeci">int literals_size() const</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01203">boolean_problem.pb.h:1203</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_objective_html_a96ffc785b7b2135c7980c985883ffdd3"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_objective.html#a96ffc785b7b2135c7980c985883ffdd3">operations_research::sat::LinearObjective::offset</a></div><div class="ttdeci">double offset() const</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01308">boolean_problem.pb.h:1308</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_objective_html_a9abd20cd5c98c0a4535d168a1c7bb18e"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_objective.html#a9abd20cd5c98c0a4535d168a1c7bb18e">operations_research::sat::LinearObjective::add_literals</a></div><div class="ttdeci">void add_literals(::PROTOBUF_NAMESPACE_ID::int32 value)</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01223">boolean_problem.pb.h:1223</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_objective_html_a9e32504c3f1bddb0f25f1386ecf7987b"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_objective.html#a9e32504c3f1bddb0f25f1386ecf7987b">operations_research::sat::LinearObjective::scaling_factor</a></div><div class="ttdeci">double scaling_factor() const</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01336">boolean_problem.pb.h:1336</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_objective_html_ac7453c28e1da85ea4728b31419c0d6b7"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_objective.html#ac7453c28e1da85ea4728b31419c0d6b7">operations_research::sat::LinearObjective::set_offset</a></div><div class="ttdeci">void set_offset(double value)</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01316">boolean_problem.pb.h:1316</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_objective_html_ae257a6514082fdcf3a9f33dda44c40b7"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_objective.html#ae257a6514082fdcf3a9f33dda44c40b7">operations_research::sat::LinearObjective::literals</a></div><div class="ttdeci">::PROTOBUF_NAMESPACE_ID::int32 literals(int index) const</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01212">boolean_problem.pb.h:1212</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_objective_html_af02334eb54337092e11b9a74312a4c25"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_objective.html#af02334eb54337092e11b9a74312a4c25">operations_research::sat::LinearObjective::set_scaling_factor</a></div><div class="ttdeci">void set_scaling_factor(double value)</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8pb_8h_source.html#l01344">boolean_problem.pb.h:1344</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_literal_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_literal.html">operations_research::sat::Literal</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00065">sat_base.h:65</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html">operations_research::sat::SatParameters</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l00347">sat_parameters.pb.h:348</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_a189f7da98fc562957090a3c24e549909"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#a189f7da98fc562957090a3c24e549909">operations_research::sat::SatParameters::mip_check_precision</a></div><div class="ttdeci">double mip_check_precision() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l08305">sat_parameters.pb.h:8305</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_a3b48343e26eed9200efcffbdc71b359a"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#a3b48343e26eed9200efcffbdc71b359a">operations_research::sat::SatParameters::mip_wanted_precision</a></div><div class="ttdeci">double mip_wanted_precision() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l08249">sat_parameters.pb.h:8249</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_ab87d9887d29cb46057a3ebe347338938"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#ab87d9887d29cb46057a3ebe347338938">operations_research::sat::SatParameters::mip_max_activity_exponent</a></div><div class="ttdeci">::PROTOBUF_NAMESPACE_ID::int32 mip_max_activity_exponent() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l08277">sat_parameters.pb.h:8277</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_acacea4a8ea1bcb7601a0564fe006801d"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#acacea4a8ea1bcb7601a0564fe006801d">operations_research::sat::SatParameters::mip_max_bound</a></div><div class="ttdeci">double mip_max_bound() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l08165">sat_parameters.pb.h:8165</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html">operations_research::sat::SatSolver</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00058">sat_solver.h:58</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a5b06f24fb581de78b321dfd793931439"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a5b06f24fb581de78b321dfd793931439">operations_research::sat::SatSolver::LiteralTrail</a></div><div class="ttdeci">const Trail & LiteralTrail() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00362">sat_solver.h:362</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a955786dcbe82b7c4dc9924a5473ac1e8"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a955786dcbe82b7c4dc9924a5473ac1e8">operations_research::sat::SatSolver::SetAssignmentPreference</a></div><div class="ttdeci">void SetAssignmentPreference(Literal literal, double weight)</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00151">sat_solver.h:151</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_trail_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_trail.html">operations_research::sat::Trail</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00234">sat_base.h:234</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_trail_html_a8ef12397d1682615bc3108c397734179"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_trail.html#a8ef12397d1682615bc3108c397734179">operations_research::sat::Trail::Index</a></div><div class="ttdeci">int Index() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00379">sat_base.h:379</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_trail_html_aba78b12088909fb59dbdd0cb064412ae"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_trail.html#aba78b12088909fb59dbdd0cb064412ae">operations_research::sat::Trail::Info</a></div><div class="ttdeci">const AssignmentInfo & Info(BooleanVariable var) const</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00382">sat_base.h:382</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="adefault__search_8cc_html_ac673bc430bdc3fdaa09f7becf98ef267"><div class="ttname"><a href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a></div><div class="ttdeci">const std::string name</div><div class="ttdef"><b>Definition:</b> <a href="default__search_8cc_source.html#l00813">default_search.cc:813</a></div></div>
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<div class="ttc" id="ademon__profiler_8cc_html_a05da18ca9c7b657a4a6ea24e07c9b695"><div class="ttname"><a href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a></div><div class="ttdeci">const Constraint * ct</div><div class="ttdef"><b>Definition:</b> <a href="demon__profiler_8cc_source.html#l00043">demon_profiler.cc:43</a></div></div>
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<div class="ttc" id="ademon__profiler_8cc_html_ac072af30c4ffbc834bb4c681f6ecb514"><div class="ttname"><a href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a></div><div class="ttdeci">int64_t value</div><div class="ttdef"><b>Definition:</b> <a href="demon__profiler_8cc_source.html#l00044">demon_profiler.cc:44</a></div></div>
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<div class="ttc" id="aexpr__array_8cc_html_a472a99923cbe11ae7b5a5d157d9ad465"><div class="ttname"><a href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a></div><div class="ttdeci">IntVar * var</div><div class="ttdef"><b>Definition:</b> <a href="expr__array_8cc_source.html#l01874">expr_array.cc:1874</a></div></div>
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<div class="ttc" id="afp__utils_8h_html"><div class="ttname"><a href="fp__utils_8h.html">fp_utils.h</a></div></div>
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<div class="ttc" id="agscip__solver_8cc_html_a1e2f9a2352c1d9a6cada9544898fceec"><div class="ttname"><a href="gscip__solver_8cc.html#a1e2f9a2352c1d9a6cada9544898fceec">lower_bound</a></div><div class="ttdeci">double lower_bound</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8cc_source.html#l00125">gscip_solver.cc:125</a></div></div>
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<div class="ttc" id="aint__type_8h_html"><div class="ttname"><a href="int__type_8h.html">int_type.h</a></div></div>
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<div class="ttc" id="ainteger_8h_html"><div class="ttname"><a href="integer_8h.html">integer.h</a></div></div>
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<div class="ttc" id="aintegral__types_8h_html"><div class="ttname"><a href="integral__types_8h.html">integral_types.h</a></div></div>
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<div class="ttc" id="alog__severity_8h_html_a50e5762f38854b37ee3e2851bc1bb0e7"><div class="ttname"><a href="log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7">WARNING</a></div><div class="ttdeci">const int WARNING</div><div class="ttdef"><b>Definition:</b> <a href="log__severity_8h_source.html#l00031">log_severity.h:31</a></div></div>
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<div class="ttc" id="alog__severity_8h_html_ab4a2cbab234914b320b7fae11b6e8cb9"><div class="ttname"><a href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a></div><div class="ttdeci">const int INFO</div><div class="ttdef"><b>Definition:</b> <a href="log__severity_8h_source.html#l00031">log_severity.h:31</a></div></div>
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<div class="ttc" id="alog__severity_8h_html_ac9bcbe19995a8140cd4ec61773cd6e67"><div class="ttname"><a href="log__severity_8h.html#ac9bcbe19995a8140cd4ec61773cd6e67">ERROR</a></div><div class="ttdeci">const int ERROR</div><div class="ttdef"><b>Definition:</b> <a href="log__severity_8h_source.html#l00032">log_severity.h:32</a></div></div>
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<div class="ttc" id="alog__severity_8h_html_acdd38e3c9f22f127d7776920e3079eda"><div class="ttname"><a href="log__severity_8h.html#acdd38e3c9f22f127d7776920e3079eda">FATAL</a></div><div class="ttdeci">const int FATAL</div><div class="ttdef"><b>Definition:</b> <a href="log__severity_8h_source.html#l00032">log_severity.h:32</a></div></div>
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<div class="ttc" id="alp__solver_8h_html"><div class="ttname"><a href="lp__solver_8h.html">lp_solver.h</a></div></div>
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<div class="ttc" id="alp__types_8h_html"><div class="ttname"><a href="lp__types_8h.html">lp_types.h</a></div></div>
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<div class="ttc" id="amarkowitz_8cc_html_aa9d6c98fdf8d89b0e2321fda02adc82c"><div class="ttname"><a href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a></div><div class="ttdeci">ColIndex col</div><div class="ttdef"><b>Definition:</b> <a href="markowitz_8cc_source.html#l00183">markowitz.cc:183</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a733947145e3e1631165b618b05c9ccb7"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">operations_research::glop::Fractional</a></div><div class="ttdeci">double Fractional</div><div class="ttdef"><b>Definition:</b> <a href="lp__types_8h_source.html#l00078">lp_types.h:78</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_a884f3b645d22471e5ed3320e182cd493a0beacd9ca195de65e685252f1b46b954"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493a0beacd9ca195de65e685252f1b46b954">operations_research::glop::ProblemStatus::IMPRECISE</a></div><div class="ttdeci">@ IMPRECISE</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a884f3b645d22471e5ed3320e182cd493a2dcc8f5d91cb2aa2065b8305bf2d5cbd"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493a2dcc8f5d91cb2aa2065b8305bf2d5cbd">operations_research::glop::ProblemStatus::PRIMAL_FEASIBLE</a></div><div class="ttdeci">@ PRIMAL_FEASIBLE</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a884f3b645d22471e5ed3320e182cd493af00c8dbdd6e1f11bdae06be94277d293"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493af00c8dbdd6e1f11bdae06be94277d293">operations_research::glop::ProblemStatus::OPTIMAL</a></div><div class="ttdeci">@ OPTIMAL</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_af9a790b7e8c5b0c6d55b336177378e78"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">operations_research::glop::kInfinity</a></div><div class="ttdeci">const double kInfinity</div><div class="ttdef"><b>Definition:</b> <a href="lp__types_8h_source.html#l00084">lp_types.h:84</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a07823d046b027c81155f8a2f322cf813"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a07823d046b027c81155f8a2f322cf813">operations_research::sat::FloorRatio</a></div><div class="ttdeci">IntegerValue FloorRatio(IntegerValue dividend, IntegerValue positive_divisor)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00091">integer.h:91</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a0ce1f2f17b7ce984fbfc526d6c04f337"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a0ce1f2f17b7ce984fbfc526d6c04f337">operations_research::sat::SolveLpAndUseSolutionForSatAssignmentPreference</a></div><div class="ttdeci">bool SolveLpAndUseSolutionForSatAssignmentPreference(const glop::LinearProgram &lp, SatSolver *sat_solver, double max_time_in_seconds)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l01194">sat/lp_utils.cc:1194</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a29b96869d2a821cf1d2e6099e7a0f51b"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a29b96869d2a821cf1d2e6099e7a0f51b">operations_research::sat::CeilRatio</a></div><div class="ttdeci">IntegerValue CeilRatio(IntegerValue dividend, IntegerValue positive_divisor)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00082">integer.h:82</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a4591e100a0f29a249169e5833995cd31"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a4591e100a0f29a249169e5833995cd31">operations_research::sat::ConvertBooleanProblemToLinearProgram</a></div><div class="ttdeci">void ConvertBooleanProblemToLinearProgram(const LinearBooleanProblem &problem, glop::LinearProgram *lp)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l01116">sat/lp_utils.cc:1116</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a7b33067a7dffa07cd5748bc4552c85a1"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a7b33067a7dffa07cd5748bc4552c85a1">operations_research::sat::ConvertBinaryMPModelProtoToBooleanProblem</a></div><div class="ttdeci">bool ConvertBinaryMPModelProtoToBooleanProblem(const MPModelProto &mp_model, LinearBooleanProblem *problem)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00937">sat/lp_utils.cc:937</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a8163165c60b5914e1e8476c56b048664"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a8163165c60b5914e1e8476c56b048664">operations_research::sat::RemoveNearZeroTerms</a></div><div class="ttdeci">void RemoveNearZeroTerms(const SatParameters &params, MPModelProto *mp_model, SolverLogger *logger)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00182">sat/lp_utils.cc:182</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a8344143223766ba5898fdba30d6f61d8"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a8344143223766ba5898fdba30d6f61d8">operations_research::sat::ConvertMPModelProtoToCpModelProto</a></div><div class="ttdeci">bool ConvertMPModelProtoToCpModelProto(const SatParameters &params, const MPModelProto &mp_model, CpModelProto *cp_model, SolverLogger *logger)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00658">sat/lp_utils.cc:658</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_aa46871f0150f3db9f9fdcbd1049aadaa"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#aa46871f0150f3db9f9fdcbd1049aadaa">operations_research::sat::SolveLpAndUseIntegerVariableToStartLNS</a></div><div class="ttdeci">bool SolveLpAndUseIntegerVariableToStartLNS(const glop::LinearProgram &lp, LinearBooleanProblem *problem)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l01216">sat/lp_utils.cc:1216</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_aaf57d784624873d840a2589efa6ff1a1"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#aaf57d784624873d840a2589efa6ff1a1">operations_research::sat::ChangeOptimizationDirection</a></div><div class="ttdeci">void ChangeOptimizationDirection(LinearBooleanProblem *problem)</div><div class="ttdef"><b>Definition:</b> <a href="boolean__problem_8cc_source.html#l00210">boolean_problem.cc:210</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_ab7cca71116da1e5640ad896f2bf46028"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#ab7cca71116da1e5640ad896f2bf46028">operations_research::sat::FixVariablesFromSat</a></div><div class="ttdeci">int FixVariablesFromSat(const SatSolver &solver, glop::LinearProgram *lp)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l01180">sat/lp_utils.cc:1180</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_ac71665cf974c4a75adc4c9ad251ae853"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#ac71665cf974c4a75adc4c9ad251ae853">operations_research::sat::ScaleContinuousVariables</a></div><div class="ttdeci">std::vector< double > ScaleContinuousVariables(double scaling, double max_bound, MPModelProto *mp_model)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00100">sat/lp_utils.cc:100</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_ae0803b8198728cd4f6e58498d9c60091"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#ae0803b8198728cd4f6e58498d9c60091">operations_research::sat::NegatedRef</a></div><div class="ttdeci">int NegatedRef(int ref)</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__utils_8h_source.html#l00034">cp_model_utils.h:34</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_ae188c568fdffc07e6443ba7eb11cff1b"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#ae188c568fdffc07e6443ba7eb11cff1b">operations_research::sat::DetectImpliedIntegers</a></div><div class="ttdeci">std::vector< double > DetectImpliedIntegers(MPModelProto *mp_model, SolverLogger *logger)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00235">sat/lp_utils.cc:235</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_af8b326626fb8ca0efd32ff0564d35731"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#af8b326626fb8ca0efd32ff0564d35731">operations_research::sat::FindRationalFactor</a></div><div class="ttdeci">int FindRationalFactor(double x, int limit, double tolerance)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00119">sat/lp_utils.cc:119</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="anamespaceoperations__research_html_a46f21c3da23685e58b31d880b2144458"><div class="ttname"><a href="namespaceoperations__research.html#a46f21c3da23685e58b31d880b2144458">operations_research::ComputeScalingErrors</a></div><div class="ttdeci">void ComputeScalingErrors(const std::vector< double > &input, const std::vector< double > &lb, const std::vector< double > &ub, double scaling_factor, double *max_relative_coeff_error, double *max_scaled_sum_error)</div><div class="ttdef"><b>Definition:</b> <a href="fp__utils_8cc_source.html#l00170">fp_utils.cc:170</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html_aae2e6ed909e0cd5f240b885800f55c87"><div class="ttname"><a href="namespaceoperations__research.html#aae2e6ed909e0cd5f240b885800f55c87">operations_research::ComputeGcdOfRoundedDoubles</a></div><div class="ttdeci">int64_t ComputeGcdOfRoundedDoubles(const std::vector< double > &x, double scaling_factor)</div><div class="ttdef"><b>Definition:</b> <a href="fp__utils_8cc_source.html#l00200">fp_utils.cc:200</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html_aae3359f1c2367d44e5cf9be5d5abc89f"><div class="ttname"><a href="namespaceoperations__research.html#aae3359f1c2367d44e5cf9be5d5abc89f">operations_research::GetBestScalingOfDoublesToInt64</a></div><div class="ttdeci">double GetBestScalingOfDoublesToInt64(const std::vector< double > &input, const std::vector< double > &lb, const std::vector< double > &ub, int64_t max_absolute_sum)</div><div class="ttdef"><b>Definition:</b> <a href="fp__utils_8cc_source.html#l00179">fp_utils.cc:179</a></div></div>
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<div class="ttc" id="aoptimization_8cc_html_af63dcc00f2023fdf498e0829e6fb8a6b"><div class="ttname"><a href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a></div><div class="ttdeci">Literal literal</div><div class="ttdef"><b>Definition:</b> <a href="optimization_8cc_source.html#l00085">optimization.cc:85</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="arouting__filters_8cc_html_a4f1e8002734902ae1c65ccc3fc30c98e"><div class="ttname"><a href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a></div><div class="ttdeci">int64_t bound</div><div class="ttdef"><b>Definition:</b> <a href="routing__filters_8cc_source.html#l00984">routing_filters.cc:984</a></div></div>
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<div class="ttc" id="asat_2lp__utils_8cc_html_a24a6b02429aaf5b933eac21ba118ee3a"><div class="ttname"><a href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a">max_scaling_factor</a></div><div class="ttdeci">double max_scaling_factor</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00491">sat/lp_utils.cc:491</a></div></div>
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<div class="ttc" id="asat_2lp__utils_8cc_html_a29fe8faef79a8a488024bae1a14f9e37"><div class="ttname"><a href="sat_2lp__utils_8cc.html#a29fe8faef79a8a488024bae1a14f9e37">scaling_target</a></div><div class="ttdeci">int64_t scaling_target</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00494">sat/lp_utils.cc:494</a></div></div>
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<div class="ttc" id="asat_2lp__utils_8cc_html_a2a1a02478d02cd8e42a1afece079d4a2"><div class="ttname"><a href="sat_2lp__utils_8cc.html#a2a1a02478d02cd8e42a1afece079d4a2">max_relative_coeff_error</a></div><div class="ttdeci">double max_relative_coeff_error</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00489">sat/lp_utils.cc:489</a></div></div>
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<div class="ttc" id="asat_2lp__utils_8cc_html_a561d7bf12fc7674b3fe0ad2ba2e175a0"><div class="ttname"><a href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a></div><div class="ttdeci">std::vector< double > lower_bounds</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00497">sat/lp_utils.cc:497</a></div></div>
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<div class="ttc" id="asat_2lp__utils_8cc_html_a6585434cd23846627340ae066aa546f6"><div class="ttname"><a href="sat_2lp__utils_8cc.html#a6585434cd23846627340ae066aa546f6">wanted_precision</a></div><div class="ttdeci">double wanted_precision</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00493">sat/lp_utils.cc:493</a></div></div>
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<div class="ttc" id="asat_2lp__utils_8cc_html_a742ae1554f2decd63d35be3e6ff4f58d"><div class="ttname"><a href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a></div><div class="ttdeci">std::vector< int > var_indices</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00495">sat/lp_utils.cc:495</a></div></div>
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<div class="ttc" id="asat_2lp__utils_8cc_html_a88215c8581662c40eec0fb8621c44af3"><div class="ttname"><a href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a></div><div class="ttdeci">std::vector< double > upper_bounds</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00498">sat/lp_utils.cc:498</a></div></div>
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<div class="ttc" id="asat_2lp__utils_8cc_html_ab1734711414da2e668957d24a41b1ddf"><div class="ttname"><a href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a></div><div class="ttdeci">std::vector< double > coefficients</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00496">sat/lp_utils.cc:496</a></div></div>
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<div class="ttc" id="asat_2lp__utils_8cc_html_ac353d235bf529bb3a9c0830da2efa892"><div class="ttname"><a href="sat_2lp__utils_8cc.html#ac353d235bf529bb3a9c0830da2efa892">max_relative_rhs_error</a></div><div class="ttdeci">double max_relative_rhs_error</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00490">sat/lp_utils.cc:490</a></div></div>
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<div class="ttc" id="asat_2lp__utils_8h_html"><div class="ttname"><a href="sat_2lp__utils_8h.html">lp_utils.h</a></div></div>
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