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1426 lines
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<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 name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2010-2018 Google LLC</span></div>
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<div class="line"><a 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 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 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 name="l00005"></a><span class="lineno"> 5</span> <span class="comment">//</span></div>
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<div class="line"><a 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 name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div>
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<div class="line"><a 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 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 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 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 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 name="l00013"></a><span class="lineno"> 13</span>  </div>
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<div class="line"><a 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 name="l00015"></a><span class="lineno"> 15</span>  </div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <stdlib.h></span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  </div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <algorithm></span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <cmath></span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <limits></span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <string></span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <vector></span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  </div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "absl/strings/str_cat.h"</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</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 name="l00026"></a><span class="lineno"> 26</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 name="l00027"></a><span class="lineno"> 27</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 name="l00028"></a><span class="lineno"> 28</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 name="l00029"></a><span class="lineno"> 29</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 name="l00030"></a><span class="lineno"> 30</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 name="l00031"></a><span class="lineno"> 31</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 name="l00032"></a><span class="lineno"> 32</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 name="l00033"></a><span class="lineno"> 33</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 name="l00034"></a><span class="lineno"> 34</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 name="l00035"></a><span class="lineno"> 35</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 name="l00036"></a><span class="lineno"> 36</span>  </div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">namespace </span><a class="code" href="namespaceoperations__research.html">operations_research</a> {</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">namespace </span>sat {</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  </div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">using</span> glop::ColIndex;</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">using</span> <a class="code" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">glop::Fractional</a>;</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">using</span> <a class="code" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">glop::kInfinity</a>;</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">using</span> glop::RowIndex;</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  </div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">using</span> operations_research::MPConstraintProto;</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">using</span> operations_research::MPModelProto;</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">using</span> operations_research::MPVariableProto;</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  </div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  </div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</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 name="l00052"></a><span class="lineno"> 52</span>  MPConstraintProto* mp_constraint) {</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</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 name="l00054"></a><span class="lineno"> 54</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 name="l00055"></a><span class="lineno"> 55</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 name="l00056"></a><span class="lineno"> 56</span>  mp_constraint->set_coefficient(</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  i, mp_constraint->coefficient(i) / var_scaling[var_index]);</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  }</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> }</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  </div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</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 name="l00062"></a><span class="lineno"> 62</span>  MPModelProto* mp_model) {</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</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 name="l00064"></a><span class="lineno"> 64</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 name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> scaling = var_scaling[i];</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">const</span> MPVariableProto& mp_var = mp_model->variable(i);</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> old_lb = mp_var.lower_bound();</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</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 name="l00069"></a><span class="lineno"> 69</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 name="l00070"></a><span class="lineno"> 70</span>  mp_model->mutable_variable(i)->set_lower_bound(old_lb * scaling);</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  mp_model->mutable_variable(i)->set_upper_bound(old_ub * scaling);</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  mp_model->mutable_variable(i)->set_objective_coefficient(old_obj / scaling);</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  }</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">for</span> (MPConstraintProto& mp_constraint : *mp_model->mutable_constraint()) {</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  ScaleConstraint(var_scaling, &mp_constraint);</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  }</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">for</span> (MPGeneralConstraintProto& general_constraint :</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  *mp_model->mutable_general_constraint()) {</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">switch</span> (general_constraint.general_constraint_case()) {</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">case</span> MPGeneralConstraintProto::kIndicatorConstraint:</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  ScaleConstraint(var_scaling,</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  general_constraint.mutable_indicator_constraint()</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  ->mutable_constraint());</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">break</span>;</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">case</span> MPGeneralConstraintProto::kAndConstraint:</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">case</span> MPGeneralConstraintProto::kOrConstraint:</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="comment">// These constraints have only Boolean variables and no constants. They</span></div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">// don't need scaling.</span></div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">break</span>;</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">default</span>:</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" 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 name="l00092"></a><span class="lineno"> 92</span>  << general_constraint.general_constraint_case();</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  }</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> }</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  </div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> } <span class="comment">// namespace</span></div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  </div>
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<div class="line"><a name="l00099"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#ac71665cf974c4a75adc4c9ad251ae853"> 99</a></span> std::vector<double> <a class="code" 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 name="l00100"></a><span class="lineno"> 100</span>  MPModelProto* mp_model) {</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</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 name="l00102"></a><span class="lineno"> 102</span>  std::vector<double> var_scaling(num_variables, 1.0);</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</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 name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">if</span> (mp_model->variable(i).is_integer()) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> lb = mp_model->variable(i).lower_bound();</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> ub = mp_model->variable(i).upper_bound();</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> magnitude = <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::max</a>(std::abs(lb), std::abs(ub));</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</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 name="l00109"></a><span class="lineno"> 109</span>  var_scaling[i] = <a class="code" href="alldiff__cst_8cc.html#a021e695f54a13bd809c34b2f4ca87c37">std::min</a>(scaling, max_bound / magnitude);</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  }</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  ApplyVarScaling(var_scaling, mp_model);</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">return</span> var_scaling;</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> }</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  </div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</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 name="l00116"></a><span class="lineno"> 116</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 name="l00117"></a><span class="lineno"> 117</span> <span class="comment">// seems to do the job.</span></div>
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<div class="line"><a name="l00118"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#af8b326626fb8ca0efd32ff0564d35731"> 118</a></span> <span class="keywordtype">int</span> <a class="code" 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 name="l00119"></a><span class="lineno"> 119</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> initial_x = x;</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  x = std::abs(x);</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  x -= std::floor(x);</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordtype">int</span> q = 1;</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordtype">int</span> prev_q = 0;</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">while</span> (q < limit) {</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</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 name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">return</span> q;</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  }</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  x = 1 / x;</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</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 name="l00130"></a><span class="lineno"> 130</span>  prev_q = q;</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  q = new_q;</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  x -= std::floor(x);</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  }</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> }</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  </div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  </div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</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 name="l00140"></a><span class="lineno"> 140</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 name="l00141"></a><span class="lineno"> 141</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</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 name="l00143"></a><span class="lineno"> 143</span> <span class="keywordtype">double</span> GetIntegralityMultiplier(<span class="keyword">const</span> MPModelProto& mp_model,</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">const</span> std::vector<double>& var_scaling, <span class="keywordtype">int</span> <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>,</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordtype">int</span> ct_index, <span class="keywordtype">double</span> tolerance) {</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <a class="code" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(!mp_model.variable(<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>).is_integer());</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keyword">const</span> MPConstraintProto& <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> = mp_model.constraint(ct_index);</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordtype">double</span> multiplier = 1.0;</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordtype">double</span> var_coeff = 0.0;</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> max_multiplier = 1e4;</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index().size(); ++i) {</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">if</span> (<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> == <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index(i)) {</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  var_coeff = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.coefficient(i);</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">continue</span>;</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  }</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  </div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <a class="code" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(mp_model.variable(<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index(i)).is_integer());</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="comment">// This actually compute the smallest multiplier to make all other</span></div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="comment">// terms in the constraint integer.</span></div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> coeff =</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  multiplier * <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.coefficient(i) / var_scaling[<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index(i)];</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  multiplier *=</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <a class="code" 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 name="l00164"></a><span class="lineno"> 164</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 name="l00165"></a><span class="lineno"> 165</span>  }</div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <a class="code" href="base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0">DCHECK_NE</a>(var_coeff, 0.0);</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  </div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="comment">// The constraint bound need to be infinite or integer.</span></div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8">bound</a> : {<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.lower_bound(), <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.upper_bound()}) {</div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">if</span> (!std::isfinite(<a class="code" href="routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8">bound</a>)) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">if</span> (std::abs(std::round(<a class="code" href="routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8">bound</a> * multiplier) - <a class="code" href="routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8">bound</a> * multiplier) ></div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  tolerance * multiplier) {</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">return</span> 0.0;</div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  }</div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  }</div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">return</span> std::abs(multiplier * var_coeff);</div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> }</div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  </div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> } <span class="comment">// namespace</span></div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  </div>
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<div class="line"><a name="l00181"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a0ff539f8974998682c8a976ec9a83166"> 181</a></span> <span class="keywordtype">void</span> <a class="code" href="namespaceoperations__research_1_1sat.html#a0ff539f8974998682c8a976ec9a83166">RemoveNearZeroTerms</a>(<span class="keyword">const</span> SatParameters& params, MPModelProto* mp_model) {</div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</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 name="l00183"></a><span class="lineno"> 183</span>  </div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</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 name="l00185"></a><span class="lineno"> 185</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 name="l00186"></a><span class="lineno"> 186</span>  <span class="comment">// bound.</span></div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  std::vector<double> max_bounds(num_variables);</div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</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 name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordtype">double</span> <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> = std::abs(mp_model->variable(i).lower_bound());</div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> = <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::max</a>(<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>, std::abs(mp_model->variable(i).upper_bound()));</div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> = <a class="code" href="alldiff__cst_8cc.html#a021e695f54a13bd809c34b2f4ca87c37">std::min</a>(<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>, params.mip_max_bound());</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  max_bounds[i] = <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>;</div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  }</div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  </div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</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 name="l00196"></a><span class="lineno"> 196</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 name="l00197"></a><span class="lineno"> 197</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 name="l00198"></a><span class="lineno"> 198</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 name="l00199"></a><span class="lineno"> 199</span>  <span class="comment">// depends on the size of the constraint.</span></div>
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> num_removed = 0;</div>
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordtype">double</span> largest_removed = 0.0;</div>
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> num_constraints = mp_model->constraint_size();</div>
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</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 name="l00204"></a><span class="lineno"> 204</span>  MPConstraintProto* <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> = mp_model->mutable_constraint(c);</div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordtype">int</span> new_size = 0;</div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> size = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->var_index().size();</div>
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">if</span> (size == 0) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> threshold =</div>
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  params.mip_wanted_precision() / <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 name="l00210"></a><span class="lineno"> 210</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 name="l00211"></a><span class="lineno"> 211</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->var_index(i);</div>
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> coeff = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->coefficient(i);</div>
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">if</span> (std::abs(coeff) * max_bounds[<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>] < threshold) {</div>
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  largest_removed = <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::max</a>(largest_removed, std::abs(coeff));</div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">continue</span>;</div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  }</div>
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->set_var_index(new_size, <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->set_coefficient(new_size, coeff);</div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  ++new_size;</div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  }</div>
|
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  num_removed += size - new_size;</div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->mutable_var_index()->Truncate(new_size);</div>
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|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->mutable_coefficient()->Truncate(new_size);</div>
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|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  }</div>
|
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<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  </div>
|
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<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> log_info = <a class="code" href="vlog__is__on_8h.html#a956152cad330225654d128f35c00efce">VLOG_IS_ON</a>(1) || params.log_search_progress();</div>
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|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordflow">if</span> (log_info && num_removed > 0) {</div>
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|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>) << <span class="stringliteral">"Removed "</span> << num_removed</div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  << <span class="stringliteral">" near zero terms with largest magnitude of "</span></div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  << largest_removed << <span class="stringliteral">"."</span>;</div>
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<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  }</div>
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<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> }</div>
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<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  </div>
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<div class="line"><a name="l00234"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a5d3559f28aa3f4859177d4c13950cf1a"> 234</a></span> std::vector<double> <a class="code" href="namespaceoperations__research_1_1sat.html#a5d3559f28aa3f4859177d4c13950cf1a">DetectImpliedIntegers</a>(<span class="keywordtype">bool</span> log_info,</div>
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<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  MPModelProto* mp_model) {</div>
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<div class="line"><a name="l00236"></a><span class="lineno"> 236</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 name="l00237"></a><span class="lineno"> 237</span>  std::vector<double> var_scaling(num_variables, 1.0);</div>
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|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  </div>
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<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordtype">int</span> initial_num_integers = 0;</div>
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<div class="line"><a name="l00240"></a><span class="lineno"> 240</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 name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">if</span> (mp_model->variable(i).is_integer()) ++initial_num_integers;</div>
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|
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  }</div>
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<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <a class="code" 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 name="l00244"></a><span class="lineno"> 244</span>  </div>
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<div class="line"><a name="l00245"></a><span class="lineno"> 245</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 name="l00246"></a><span class="lineno"> 246</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> tolerance = 1e-6;</div>
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<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  std::vector<int> constraint_queue;</div>
|
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<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  </div>
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<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> num_constraints = mp_model->constraint_size();</div>
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|
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  std::vector<int> constraint_to_num_non_integer(num_constraints, 0);</div>
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<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  std::vector<std::vector<int>> var_to_constraints(num_variables);</div>
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<div class="line"><a name="l00252"></a><span class="lineno"> 252</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 name="l00253"></a><span class="lineno"> 253</span>  <span class="keyword">const</span> MPConstraintProto& mp_constraint = mp_model->constraint(i);</div>
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<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  </div>
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> : mp_constraint.var_index()) {</div>
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|
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">if</span> (!mp_model->variable(<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>).is_integer()) {</div>
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|
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  var_to_constraints[<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>].push_back(i);</div>
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|
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  constraint_to_num_non_integer[i]++;</div>
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|
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  }</div>
|
|
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  }</div>
|
|
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">if</span> (constraint_to_num_non_integer[i] == 1) {</div>
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|
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  constraint_queue.push_back(i);</div>
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|
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  }</div>
|
|
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  }</div>
|
|
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <a class="code" 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 name="l00266"></a><span class="lineno"> 266</span>  << num_constraints;</div>
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|
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  </div>
|
|
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keywordtype">int</span> num_detected = 0;</div>
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|
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keywordtype">double</span> max_scaling = 0.0;</div>
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|
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keyword">auto</span> scale_and_mark_as_integer = [&](<span class="keywordtype">int</span> <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <span class="keywordtype">double</span> scaling) <span class="keyword">mutable</span> {</div>
|
|
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <a class="code" href="base_2logging_8h.html#ab25e01a2942b821d66371fc68d53f2eb">CHECK_NE</a>(<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, -1);</div>
|
|
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <a class="code" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!mp_model->variable(<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>).is_integer());</div>
|
|
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <a class="code" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(var_scaling[<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>], 1.0);</div>
|
|
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">if</span> (scaling != 1.0) {</div>
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|
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <a class="code" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(2) << <span class="stringliteral">"Scaled "</span> << <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> << <span class="stringliteral">" by "</span> << scaling;</div>
|
|
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  }</div>
|
|
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  </div>
|
|
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  ++num_detected;</div>
|
|
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  max_scaling = <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::max</a>(max_scaling, scaling);</div>
|
|
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  </div>
|
|
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="comment">// Scale the variable right away and mark it as implied integer.</span></div>
|
|
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="comment">// Note that the constraints will be scaled later.</span></div>
|
|
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  var_scaling[<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>] = scaling;</div>
|
|
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  mp_model->mutable_variable(<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>)->set_is_integer(<span class="keyword">true</span>);</div>
|
|
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  </div>
|
|
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="comment">// Update the queue of constraints with a single non-integer.</span></div>
|
|
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> ct_index : var_to_constraints[<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>]) {</div>
|
|
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  constraint_to_num_non_integer[ct_index]--;</div>
|
|
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">if</span> (constraint_to_num_non_integer[ct_index] == 1) {</div>
|
|
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  constraint_queue.push_back(ct_index);</div>
|
|
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  }</div>
|
|
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  }</div>
|
|
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  };</div>
|
|
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  </div>
|
|
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="keywordtype">int</span> num_fail_due_to_rhs = 0;</div>
|
|
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordtype">int</span> num_fail_due_to_large_multiplier = 0;</div>
|
|
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordtype">int</span> num_processed_constraints = 0;</div>
|
|
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keywordflow">while</span> (!constraint_queue.empty()) {</div>
|
|
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> top_ct_index = constraint_queue.back();</div>
|
|
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  constraint_queue.pop_back();</div>
|
|
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  </div>
|
|
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="comment">// The non integer variable was already made integer by one other</span></div>
|
|
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="comment">// constraint.</span></div>
|
|
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keywordflow">if</span> (constraint_to_num_non_integer[top_ct_index] == 0) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  </div>
|
|
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="comment">// Ignore non-equality here.</span></div>
|
|
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="keyword">const</span> MPConstraintProto& <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> = mp_model->constraint(top_ct_index);</div>
|
|
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.lower_bound() + tolerance < <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.upper_bound()) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  </div>
|
|
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  ++num_processed_constraints;</div>
|
|
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  </div>
|
|
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="comment">// This will be set to the unique non-integer term of this constraint.</span></div>
|
|
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="keywordtype">int</span> <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = -1;</div>
|
|
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordtype">double</span> var_coeff;</div>
|
|
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  </div>
|
|
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="comment">// We are looking for a "multiplier" so that the unique non-integer term</span></div>
|
|
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="comment">// in this constraint (i.e. var * var_coeff) times this multiplier is an</span></div>
|
|
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="comment">// integer.</span></div>
|
|
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="comment">//</span></div>
|
|
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="comment">// If this is set to zero or becomes too large, we fail to detect a new</span></div>
|
|
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="comment">// implied integer and ignore this constraint.</span></div>
|
|
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keywordtype">double</span> multiplier = 1.0;</div>
|
|
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> max_multiplier = 1e4;</div>
|
|
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  </div>
|
|
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index().size(); ++i) {</div>
|
|
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keywordflow">if</span> (!mp_model->variable(<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index(i)).is_integer()) {</div>
|
|
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <a class="code" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, -1);</div>
|
|
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index(i);</div>
|
|
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  var_coeff = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.coefficient(i);</div>
|
|
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="comment">// This actually compute the smallest multiplier to make all other</span></div>
|
|
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="comment">// terms in the constraint integer.</span></div>
|
|
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> coeff =</div>
|
|
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  multiplier * <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.coefficient(i) / var_scaling[<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.var_index(i)];</div>
|
|
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  multiplier *=</div>
|
|
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <a class="code" href="namespaceoperations__research_1_1sat.html#af8b326626fb8ca0efd32ff0564d35731">FindRationalFactor</a>(coeff, <span class="comment">/*limit=*/</span>100, multiplier * tolerance);</div>
|
|
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keywordflow">if</span> (multiplier == 0 || multiplier > max_multiplier) {</div>
|
|
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  }</div>
|
|
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  }</div>
|
|
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  }</div>
|
|
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  </div>
|
|
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keywordflow">if</span> (multiplier == 0 || multiplier > max_multiplier) {</div>
|
|
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  ++num_fail_due_to_large_multiplier;</div>
|
|
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  }</div>
|
|
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  </div>
|
|
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="comment">// These "rhs" fail could be handled by shifting the variable.</span></div>
|
|
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> rhs = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.lower_bound();</div>
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<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keywordflow">if</span> (std::abs(std::round(rhs * multiplier) - rhs * multiplier) ></div>
|
|
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  tolerance * multiplier) {</div>
|
|
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  ++num_fail_due_to_rhs;</div>
|
|
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  }</div>
|
|
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  </div>
|
|
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="comment">// We want to multiply the variable so that it is integer. We know that</span></div>
|
|
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="comment">// coeff * multiplier is an integer, so we just multiply by that.</span></div>
|
|
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="comment">//</span></div>
|
|
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="comment">// But if a variable appear in more than one equality, we want to find the</span></div>
|
|
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="comment">// smallest integrality factor! See diameterc-msts-v40a100d5i.mps</span></div>
|
|
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="comment">// for an instance of this.</span></div>
|
|
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keywordtype">double</span> best_scaling = std::abs(var_coeff * multiplier);</div>
|
|
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> ct_index : var_to_constraints[<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>]) {</div>
|
|
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keywordflow">if</span> (ct_index == top_ct_index) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordflow">if</span> (constraint_to_num_non_integer[ct_index] != 1) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  </div>
|
|
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="comment">// Ignore non-equality here.</span></div>
|
|
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keyword">const</span> MPConstraintProto& <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> = mp_model->constraint(top_ct_index);</div>
|
|
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.lower_bound() + tolerance < <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.upper_bound()) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  </div>
|
|
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> multiplier = GetIntegralityMultiplier(</div>
|
|
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  *mp_model, var_scaling, <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, ct_index, tolerance);</div>
|
|
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keywordflow">if</span> (multiplier != 0.0 && multiplier < best_scaling) {</div>
|
|
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  best_scaling = multiplier;</div>
|
|
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  }</div>
|
|
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  }</div>
|
|
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  </div>
|
|
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  scale_and_mark_as_integer(<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, best_scaling);</div>
|
|
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  }</div>
|
|
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  </div>
|
|
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="comment">// Process continuous variables that only appear as the unique non integer</span></div>
|
|
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="comment">// in a set of non-equality constraints.</span></div>
|
|
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="comment">//</span></div>
|
|
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="comment">// Note that turning to integer such variable cannot in turn trigger new</span></div>
|
|
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="comment">// integer detection, so there is no point doing that in a loop.</span></div>
|
|
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordtype">int</span> num_in_inequalities = 0;</div>
|
|
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keywordtype">int</span> num_to_be_handled = 0;</div>
|
|
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = 0; <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> < num_variables; ++<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div>
|
|
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keywordflow">if</span> (mp_model->variable(<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>).is_integer()) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  </div>
|
|
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="comment">// This should be presolved and not happen.</span></div>
|
|
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keywordflow">if</span> (var_to_constraints[<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>].empty()) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  </div>
|
|
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="keywordtype">bool</span> ok = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> ct_index : var_to_constraints[<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>]) {</div>
|
|
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="keywordflow">if</span> (constraint_to_num_non_integer[ct_index] != 1) {</div>
|
|
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  ok = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  }</div>
|
|
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  }</div>
|
|
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keywordflow">if</span> (!ok) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  </div>
|
|
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  std::vector<double> scaled_coeffs;</div>
|
|
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> ct_index : var_to_constraints[<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>]) {</div>
|
|
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> multiplier = GetIntegralityMultiplier(</div>
|
|
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  *mp_model, var_scaling, <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, ct_index, tolerance);</div>
|
|
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">if</span> (multiplier == 0.0) {</div>
|
|
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  ok = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  }</div>
|
|
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  scaled_coeffs.push_back(multiplier);</div>
|
|
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  }</div>
|
|
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="keywordflow">if</span> (!ok) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  </div>
|
|
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="comment">// The situation is a bit tricky here, we have a bunch of coeffs c_i, and we</span></div>
|
|
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="comment">// know that X * c_i can take integer value without changing the constraint</span></div>
|
|
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="comment">// i meaning.</span></div>
|
|
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="comment">//</span></div>
|
|
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="comment">// For now we take the min, and scale only if all c_i / min are integer.</span></div>
|
|
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="keywordtype">double</span> scaling = scaled_coeffs[0];</div>
|
|
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">double</span> c : scaled_coeffs) {</div>
|
|
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  scaling = <a class="code" href="alldiff__cst_8cc.html#a021e695f54a13bd809c34b2f4ca87c37">std::min</a>(scaling, c);</div>
|
|
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  }</div>
|
|
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <a class="code" href="base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6">CHECK_GT</a>(scaling, 0.0);</div>
|
|
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">double</span> c : scaled_coeffs) {</div>
|
|
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> fraction = c / scaling;</div>
|
|
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="keywordflow">if</span> (std::abs(std::round(fraction) - fraction) > tolerance) {</div>
|
|
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  ok = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  }</div>
|
|
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  }</div>
|
|
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="keywordflow">if</span> (!ok) {</div>
|
|
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="comment">// TODO(user): be smarter! we should be able to handle these cases.</span></div>
|
|
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  ++num_to_be_handled;</div>
|
|
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  }</div>
|
|
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  </div>
|
|
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="comment">// Tricky, we also need the bound of the scaled variable to be integer.</span></div>
|
|
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8">bound</a> : {mp_model->variable(<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>).lower_bound(),</div>
|
|
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  mp_model->variable(<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>).upper_bound()}) {</div>
|
|
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keywordflow">if</span> (!std::isfinite(<a class="code" href="routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8">bound</a>)) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="keywordflow">if</span> (std::abs(std::round(<a class="code" href="routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8">bound</a> * scaling) - <a class="code" href="routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8">bound</a> * scaling) ></div>
|
|
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  tolerance * scaling) {</div>
|
|
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  ok = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  }</div>
|
|
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  }</div>
|
|
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="keywordflow">if</span> (!ok) {</div>
|
|
<div class="line"><a name="l00449"></a><span class="lineno"> 449</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 name="l00450"></a><span class="lineno"> 450</span>  <span class="comment">// integer.</span></div>
|
|
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  ++num_to_be_handled;</div>
|
|
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  }</div>
|
|
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  </div>
|
|
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  ++num_in_inequalities;</div>
|
|
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  scale_and_mark_as_integer(<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, scaling);</div>
|
|
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  }</div>
|
|
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <a class="code" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(1) << <span class="stringliteral">"num_new_integer: "</span> << num_detected</div>
|
|
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  << <span class="stringliteral">" num_processed_constraints: "</span> << num_processed_constraints</div>
|
|
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  << <span class="stringliteral">" num_rhs_fail: "</span> << num_fail_due_to_rhs</div>
|
|
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  << <span class="stringliteral">" num_multiplier_fail: "</span> << num_fail_due_to_large_multiplier;</div>
|
|
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  </div>
|
|
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keywordflow">if</span> (log_info && num_to_be_handled > 0) {</div>
|
|
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>) << <span class="stringliteral">"Missed "</span> << num_to_be_handled</div>
|
|
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  << <span class="stringliteral">" potential implied integer."</span>;</div>
|
|
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  }</div>
|
|
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  </div>
|
|
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> num_integers = initial_num_integers + num_detected;</div>
|
|
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <a class="code" href="base_2logging_8h.html#a09f7d88282cf92c9f231270ac113e5c6">LOG_IF</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>, log_info) << <span class="stringliteral">"Num integers: "</span> << num_integers << <span class="stringliteral">"/"</span></div>
|
|
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  << num_variables << <span class="stringliteral">" (implied: "</span> << num_detected</div>
|
|
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  << <span class="stringliteral">" in_inequalities: "</span> << num_in_inequalities</div>
|
|
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  << <span class="stringliteral">" max_scaling: "</span> << max_scaling << <span class="stringliteral">")"</span></div>
|
|
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  << (num_integers == num_variables ? <span class="stringliteral">" [IP] "</span></div>
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<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  : <span class="stringliteral">" [MIP] "</span>);</div>
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<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  </div>
|
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<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  ApplyVarScaling(var_scaling, mp_model);</div>
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<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="keywordflow">return</span> var_scaling;</div>
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<div class="line"><a name="l00478"></a><span class="lineno"> 478</span> }</div>
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<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  </div>
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<div class="line"><a name="l00480"></a><span class="lineno"> 480</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  </div>
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<div class="line"><a name="l00482"></a><span class="lineno"> 482</span> <span class="comment">// We use a class to reuse the temporay memory.</span></div>
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<div class="line"><a name="l00483"></a><span class="lineno"> 483</span> <span class="keyword">struct </span>ConstraintScaler {</div>
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<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <span class="comment">// Scales an individual constraint.</span></div>
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<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  ConstraintProto* AddConstraint(<span class="keyword">const</span> MPModelProto& mp_model,</div>
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<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="keyword">const</span> MPConstraintProto& mp_constraint,</div>
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<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  CpModelProto* cp_model);</div>
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<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  </div>
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<div class="line"><a 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" href="sat_2lp__utils_8cc.html#a2a1a02478d02cd8e42a1afece079d4a2">max_relative_coeff_error</a> = 0.0;</div>
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<div class="line"><a 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" href="sat_2lp__utils_8cc.html#ac353d235bf529bb3a9c0830da2efa892">max_relative_rhs_error</a> = 0.0;</div>
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<div class="line"><a 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" href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a">max_scaling_factor</a> = 0.0;</div>
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<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  </div>
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<div class="line"><a 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" href="sat_2lp__utils_8cc.html#a6585434cd23846627340ae066aa546f6">wanted_precision</a> = 1e-6;</div>
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<div class="line"><a name="l00494"></a><span class="lineno"><a class="line" href="sat_2lp__utils_8cc.html#a6a1f817dc422c6adab9def33880bcf4a"> 494</a></span>  <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> <a class="code" href="sat_2lp__utils_8cc.html#a6a1f817dc422c6adab9def33880bcf4a">scaling_target</a> = <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a>{1} << 50;</div>
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<div class="line"><a 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" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a>;</div>
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<div class="line"><a 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" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>;</div>
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<div class="line"><a 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" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>;</div>
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<div class="line"><a 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" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>;</div>
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<div class="line"><a name="l00499"></a><span class="lineno"> 499</span> };</div>
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<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  </div>
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<div class="line"><a name="l00501"></a><span class="lineno"> 501</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  </div>
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<div class="line"><a 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" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>,</div>
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<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <span class="keywordtype">double</span> tolerance) {</div>
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<div class="line"><a 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 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" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>) {</div>
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<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  multiplier *=</div>
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<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <a class="code" 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 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 name="l00510"></a><span class="lineno"> 510</span>  }</div>
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<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="keywordflow">return</span> multiplier;</div>
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<div class="line"><a name="l00512"></a><span class="lineno"> 512</span> }</div>
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<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  </div>
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<div class="line"><a name="l00514"></a><span class="lineno"> 514</span> } <span class="comment">// namespace</span></div>
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<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  </div>
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<div class="line"><a name="l00516"></a><span class="lineno"> 516</span> ConstraintProto* ConstraintScaler::AddConstraint(</div>
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<div class="line"><a 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 name="l00518"></a><span class="lineno"> 518</span>  CpModelProto* cp_model) {</div>
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<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <span class="keywordflow">if</span> (mp_constraint.lower_bound() == -<a class="code" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a> &&</div>
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<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  mp_constraint.upper_bound() == <a class="code" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a>) {</div>
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<div class="line"><a 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 name="l00522"></a><span class="lineno"> 522</span>  }</div>
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<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  </div>
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<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <span class="keyword">auto</span>* constraint = cp_model->add_constraints();</div>
|
|
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  constraint->set_name(mp_constraint.name());</div>
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<div class="line"><a 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 name="l00527"></a><span class="lineno"> 527</span>  </div>
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<div class="line"><a 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 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 name="l00530"></a><span class="lineno"> 530</span>  <a class="code" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a>.clear();</div>
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<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.clear();</div>
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<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <a class="code" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>.clear();</div>
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<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <a class="code" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>.clear();</div>
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<div class="line"><a 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 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 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 name="l00537"></a><span class="lineno"> 537</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> lb = var_proto.domain(0);</div>
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<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> ub = var_proto.domain(var_proto.domain_size() - 1);</div>
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<div class="line"><a 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 name="l00540"></a><span class="lineno"> 540</span>  </div>
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<div class="line"><a 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 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 name="l00543"></a><span class="lineno"> 543</span>  </div>
|
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<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <a class="code" 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 name="l00545"></a><span class="lineno"> 545</span>  <a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.push_back(coeff);</div>
|
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<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <a class="code" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>.push_back(lb);</div>
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<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <a class="code" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>.push_back(ub);</div>
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<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  }</div>
|
|
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  </div>
|
|
<div class="line"><a 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>
|
|
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  <a class="code" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> lb = mp_constraint.lower_bound();</div>
|
|
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <a class="code" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> ub = mp_constraint.upper_bound();</div>
|
|
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> ct_norm = <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::max</a>(1.0, <a class="code" href="alldiff__cst_8cc.html#a021e695f54a13bd809c34b2f4ca87c37">std::min</a>(std::abs(lb), std::abs(ub)));</div>
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<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  </div>
|
|
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <span class="keywordtype">double</span> scaling_factor = <a class="code" href="namespaceoperations__research.html#afd62b70eb0f46a86016aeda8edea45fa">GetBestScalingOfDoublesToInt64</a>(</div>
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|
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, <a class="code" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>, <a class="code" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>, <a class="code" href="sat_2lp__utils_8cc.html#a6a1f817dc422c6adab9def33880bcf4a">scaling_target</a>);</div>
|
|
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  </div>
|
|
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  <span class="comment">// Returns the smallest factor of the form 2^i that gives us a relative sum</span></div>
|
|
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  <span class="comment">// error of wanted_precision and still make sure we will have no integer</span></div>
|
|
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  <span class="comment">// overflow.</span></div>
|
|
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="comment">//</span></div>
|
|
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  <span class="comment">// TODO(user): Make this faster.</span></div>
|
|
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  <span class="keywordtype">double</span> x = <a class="code" href="alldiff__cst_8cc.html#a021e695f54a13bd809c34b2f4ca87c37">std::min</a>(scaling_factor, 1.0);</div>
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|
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="keywordtype">double</span> relative_coeff_error;</div>
|
|
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  <span class="keywordtype">double</span> scaled_sum_error;</div>
|
|
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  <span class="keywordflow">for</span> (; x <= scaling_factor; x *= 2) {</div>
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<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  <a class="code" href="namespaceoperations__research.html#a46f21c3da23685e58b31d880b2144458">ComputeScalingErrors</a>(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, <a class="code" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>, <a class="code" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>, x,</div>
|
|
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  &relative_coeff_error, &scaled_sum_error);</div>
|
|
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  <span class="keywordflow">if</span> (scaled_sum_error < <a class="code" href="sat_2lp__utils_8cc.html#a6585434cd23846627340ae066aa546f6">wanted_precision</a> * x * ct_norm) <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  }</div>
|
|
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  scaling_factor = x;</div>
|
|
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  </div>
|
|
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  <span class="comment">// Because we deal with an approximate input, scaling with a power of 2 might</span></div>
|
|
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  <span class="comment">// not be the best choice. It is also possible user used rational coeff and</span></div>
|
|
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <span class="comment">// then converted them to double (1/2, 1/3, 4/5, etc...). This scaling will</span></div>
|
|
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <span class="comment">// recover such rational input and might result in a smaller overall</span></div>
|
|
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="comment">// coefficient which is good.</span></div>
|
|
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> integer_factor = FindFractionalScaling(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, 1e-8);</div>
|
|
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="keywordflow">if</span> (integer_factor != 0 && integer_factor < scaling_factor) {</div>
|
|
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  <a class="code" href="namespaceoperations__research.html#a46f21c3da23685e58b31d880b2144458">ComputeScalingErrors</a>(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, <a class="code" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>, <a class="code" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>, x,</div>
|
|
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  &relative_coeff_error, &scaled_sum_error);</div>
|
|
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  <span class="keywordflow">if</span> (scaled_sum_error < <a class="code" href="sat_2lp__utils_8cc.html#a6585434cd23846627340ae066aa546f6">wanted_precision</a> * integer_factor * ct_norm) {</div>
|
|
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  scaling_factor = integer_factor;</div>
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|
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  }</div>
|
|
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  }</div>
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<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  </div>
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<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> gcd = <a class="code" href="namespaceoperations__research.html#a4256c1ce10497f58f5c8b3d2abc57525">ComputeGcdOfRoundedDoubles</a>(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, scaling_factor);</div>
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<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  <a class="code" href="sat_2lp__utils_8cc.html#a2a1a02478d02cd8e42a1afece079d4a2">max_relative_coeff_error</a> =</div>
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<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::max</a>(relative_coeff_error, <a class="code" href="sat_2lp__utils_8cc.html#a2a1a02478d02cd8e42a1afece079d4a2">max_relative_coeff_error</a>);</div>
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<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <a class="code" href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a">max_scaling_factor</a> = <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::max</a>(scaling_factor / gcd, <a class="code" href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a">max_scaling_factor</a>);</div>
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<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  </div>
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<div class="line"><a name="l00592"></a><span class="lineno"> 592</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 name="l00593"></a><span class="lineno"> 593</span>  <span class="comment">// we made no error at all during our scaling.</span></div>
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<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  <span class="keywordtype">bool</span> relax_bound = scaled_sum_error > 0;</div>
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<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  </div>
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<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.size(); ++i) {</div>
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<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> scaled_value = <a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>[i] * scaling_factor;</div>
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<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> = <span class="keyword">static_cast<</span><a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a><span class="keyword">></span>(std::round(scaled_value)) / gcd;</div>
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<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> != 0) {</div>
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<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  <span class="keywordflow">if</span> (!mp_model.variable(<a class="code" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a>[i]).is_integer()) {</div>
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<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  relax_bound = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  }</div>
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<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  arg->add_vars(<a class="code" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a>[i]);</div>
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<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  arg->add_coeffs(<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>);</div>
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<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  }</div>
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<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  }</div>
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<div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  <a class="code" href="sat_2lp__utils_8cc.html#ac353d235bf529bb3a9c0830da2efa892">max_relative_rhs_error</a> = <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::max</a>(</div>
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<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  <a class="code" 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 name="l00609"></a><span class="lineno"> 609</span>  </div>
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<div class="line"><a name="l00610"></a><span class="lineno"> 610</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 name="l00611"></a><span class="lineno"> 611</span>  <span class="comment">// on an int64, if the scaled bounds are too large, the constraint is either</span></div>
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<div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  <span class="comment">// always true or always false.</span></div>
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<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  <span class="keywordflow">if</span> (relax_bound) {</div>
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<div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  lb -= <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::max</a>(std::abs(lb), 1.0) * <a class="code" href="sat_2lp__utils_8cc.html#a6585434cd23846627340ae066aa546f6">wanted_precision</a>;</div>
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<div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  }</div>
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<div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  <span class="keyword">const</span> <a class="code" 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 name="l00617"></a><span class="lineno"> 617</span>  <span class="keywordflow">if</span> (lb == -<a class="code" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a> || scaled_lb <= <a class="code" href="integral__types_8h.html#af458164b470cbba416d5ed579e00ff60">kint64min</a>) {</div>
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<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  arg->add_domain(<a class="code" href="integral__types_8h.html#af458164b470cbba416d5ed579e00ff60">kint64min</a>);</div>
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<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  arg->add_domain(<a class="code" href="namespaceoperations__research_1_1sat.html#a29b96869d2a821cf1d2e6099e7a0f51b">CeilRatio</a>(IntegerValue(<span class="keyword">static_cast<</span><a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a><span class="keyword">></span>(scaled_lb)),</div>
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<div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  IntegerValue(gcd))</div>
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<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  .<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>());</div>
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<div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  }</div>
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<div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  </div>
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<div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  <span class="keywordflow">if</span> (relax_bound) {</div>
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<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  ub += <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::max</a>(std::abs(ub), 1.0) * <a class="code" href="sat_2lp__utils_8cc.html#a6585434cd23846627340ae066aa546f6">wanted_precision</a>;</div>
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<div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  }</div>
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<div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  <span class="keyword">const</span> <a class="code" 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 name="l00629"></a><span class="lineno"> 629</span>  <span class="keywordflow">if</span> (ub == <a class="code" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a> || scaled_ub >= <a class="code" href="integral__types_8h.html#a74ea76ea27f48fb1b6e148e1577b3719">kint64max</a>) {</div>
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<div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  arg->add_domain(<a class="code" href="integral__types_8h.html#a74ea76ea27f48fb1b6e148e1577b3719">kint64max</a>);</div>
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<div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  arg->add_domain(<a class="code" href="namespaceoperations__research_1_1sat.html#a07823d046b027c81155f8a2f322cf813">FloorRatio</a>(IntegerValue(<span class="keyword">static_cast<</span><a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a><span class="keyword">></span>(scaled_ub)),</div>
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<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  IntegerValue(gcd))</div>
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<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  .<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>());</div>
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<div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  }</div>
|
|
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  </div>
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<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <span class="keywordflow">return</span> constraint;</div>
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<div class="line"><a name="l00638"></a><span class="lineno"> 638</span> }</div>
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<div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  </div>
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<div class="line"><a name="l00640"></a><span class="lineno"> 640</span> } <span class="comment">// namespace</span></div>
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<div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  </div>
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<div class="line"><a name="l00642"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#adead4997e96ccdef87190f43c5de938f"> 642</a></span> <span class="keywordtype">bool</span> <a class="code" href="namespaceoperations__research_1_1sat.html#adead4997e96ccdef87190f43c5de938f">ConvertMPModelProtoToCpModelProto</a>(<span class="keyword">const</span> SatParameters& params,</div>
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<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  <span class="keyword">const</span> MPModelProto& mp_model,</div>
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|
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  CpModelProto* cp_model) {</div>
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<div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  <a class="code" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(cp_model != <span class="keyword">nullptr</span>);</div>
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<div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  cp_model->Clear();</div>
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|
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  cp_model->set_name(mp_model.name());</div>
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<div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  </div>
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<div class="line"><a name="l00649"></a><span class="lineno"> 649</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 name="l00650"></a><span class="lineno"> 650</span>  <span class="comment">// unbounded variable.</span></div>
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|
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  <span class="comment">//</span></div>
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<div class="line"><a name="l00652"></a><span class="lineno"> 652</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 name="l00653"></a><span class="lineno"> 653</span>  <span class="comment">// MIP problem that we cannot "convert" because of this. Note however than we</span></div>
|
|
<div class="line"><a name="l00654"></a><span class="lineno"> 654</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 name="l00655"></a><span class="lineno"> 655</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 name="l00656"></a><span class="lineno"> 656</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 name="l00657"></a><span class="lineno"> 657</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 name="l00658"></a><span class="lineno"> 658</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 name="l00659"></a><span class="lineno"> 659</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 name="l00660"></a><span class="lineno"> 660</span>  <span class="comment">// trouble.</span></div>
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<div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> kMaxVariableBound = <span class="keyword">static_cast<</span><a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a><span class="keyword">></span>(params.mip_max_bound());</div>
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<div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  </div>
|
|
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <span class="keywordtype">int</span> num_truncated_bounds = 0;</div>
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<div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  <span class="keywordtype">int</span> num_small_domains = 0;</div>
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<div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> kSmallDomainSize = 1000;</div>
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<div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> kWantedPrecision = params.mip_wanted_precision();</div>
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<div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  </div>
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<div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  <span class="comment">// Add the variables.</span></div>
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<div class="line"><a name="l00669"></a><span class="lineno"> 669</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 name="l00670"></a><span class="lineno"> 670</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 name="l00671"></a><span class="lineno"> 671</span>  <span class="keyword">const</span> MPVariableProto& mp_var = mp_model.variable(i);</div>
|
|
<div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  IntegerVariableProto* cp_var = cp_model->add_variables();</div>
|
|
<div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  cp_var->set_name(mp_var.name());</div>
|
|
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  </div>
|
|
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  <span class="comment">// Deal with the corner case of a domain far away from zero.</span></div>
|
|
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  <span class="comment">//</span></div>
|
|
<div class="line"><a name="l00677"></a><span class="lineno"> 677</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 name="l00678"></a><span class="lineno"> 678</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 name="l00679"></a><span class="lineno"> 679</span>  <span class="comment">// bit of work as it requires some postsolve.</span></div>
|
|
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  <span class="keywordflow">if</span> (mp_var.lower_bound() > kMaxVariableBound) {</div>
|
|
<div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  <span class="comment">// Fix var to its lower bound.</span></div>
|
|
<div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  ++num_truncated_bounds;</div>
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|
<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> = <span class="keyword">static_cast<</span><a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a><span class="keyword">></span>(std::round(mp_var.lower_bound()));</div>
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|
<div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  cp_var->add_domain(<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>);</div>
|
|
<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  cp_var->add_domain(<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>);</div>
|
|
<div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mp_var.upper_bound() < -kMaxVariableBound) {</div>
|
|
<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  <span class="comment">// Fix var to its upper_bound.</span></div>
|
|
<div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  ++num_truncated_bounds;</div>
|
|
<div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> = <span class="keyword">static_cast<</span><a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a><span class="keyword">></span>(std::round(mp_var.upper_bound()));</div>
|
|
<div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  cp_var->add_domain(<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>);</div>
|
|
<div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  cp_var->add_domain(<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>);</div>
|
|
<div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  }</div>
|
|
<div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  </div>
|
|
<div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  <span class="comment">// Note that we must process the lower bound first.</span></div>
|
|
<div class="line"><a name="l00697"></a><span class="lineno"> 697</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 name="l00698"></a><span class="lineno"> 698</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8">bound</a> = lower ? mp_var.lower_bound() : mp_var.upper_bound();</div>
|
|
<div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  <span class="keywordflow">if</span> (std::abs(<a class="code" href="routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8">bound</a>) >= kMaxVariableBound) {</div>
|
|
<div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  ++num_truncated_bounds;</div>
|
|
<div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  cp_var->add_domain(<a class="code" href="routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8">bound</a> < 0 ? -kMaxVariableBound : kMaxVariableBound);</div>
|
|
<div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  }</div>
|
|
<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  </div>
|
|
<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  <span class="comment">// Note that the cast is "perfect" because we forbid large values.</span></div>
|
|
<div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  cp_var->add_domain(</div>
|
|
<div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  <span class="keyword">static_cast<</span><a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a><span class="keyword">></span>(lower ? std::ceil(<a class="code" href="routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8">bound</a> - kWantedPrecision)</div>
|
|
<div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  : std::floor(<a class="code" href="routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8">bound</a> + kWantedPrecision)));</div>
|
|
<div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  }</div>
|
|
<div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  </div>
|
|
<div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  <span class="keywordflow">if</span> (cp_var->domain(0) > cp_var->domain(1)) {</div>
|
|
<div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" 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 name="l00713"></a><span class="lineno"> 713</span>  << mp_var.ShortDebugString();</div>
|
|
<div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  }</div>
|
|
<div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  </div>
|
|
<div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  <span class="comment">// Notify if a continuous variable has a small domain as this is likely to</span></div>
|
|
<div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  <span class="comment">// make an all integer solution far from a continuous one.</span></div>
|
|
<div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  <span class="keywordflow">if</span> (!mp_var.is_integer() && cp_var->domain(0) != cp_var->domain(1) &&</div>
|
|
<div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  cp_var->domain(1) - cp_var->domain(0) < kSmallDomainSize) {</div>
|
|
<div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  ++num_small_domains;</div>
|
|
<div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  }</div>
|
|
<div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  }</div>
|
|
<div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  </div>
|
|
<div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  <a class="code" href="base_2logging_8h.html#a09f7d88282cf92c9f231270ac113e5c6">LOG_IF</a>(<a class="code" href="log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7">WARNING</a>, num_truncated_bounds > 0)</div>
|
|
<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  << num_truncated_bounds << <span class="stringliteral">" bounds were truncated to "</span></div>
|
|
<div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  << kMaxVariableBound << <span class="stringliteral">"."</span>;</div>
|
|
<div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  <a class="code" href="base_2logging_8h.html#a09f7d88282cf92c9f231270ac113e5c6">LOG_IF</a>(<a class="code" href="log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7">WARNING</a>, num_small_domains > 0)</div>
|
|
<div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  << num_small_domains << <span class="stringliteral">" continuous variable domain with fewer than "</span></div>
|
|
<div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  << kSmallDomainSize << <span class="stringliteral">" values."</span>;</div>
|
|
<div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  </div>
|
|
<div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  ConstraintScaler scaler;</div>
|
|
<div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> kScalingTarget = <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a>{1} << params.mip_max_activity_exponent();</div>
|
|
<div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  scaler.wanted_precision = kWantedPrecision;</div>
|
|
<div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  scaler.scaling_target = kScalingTarget;</div>
|
|
<div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  </div>
|
|
<div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  <span class="comment">// Add the constraints. We scale each of them individually.</span></div>
|
|
<div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> MPConstraintProto& mp_constraint : mp_model.constraint()) {</div>
|
|
<div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  scaler.AddConstraint(mp_model, mp_constraint, cp_model);</div>
|
|
<div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  }</div>
|
|
<div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> MPGeneralConstraintProto& general_constraint :</div>
|
|
<div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  mp_model.general_constraint()) {</div>
|
|
<div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  <span class="keywordflow">switch</span> (general_constraint.general_constraint_case()) {</div>
|
|
<div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  <span class="keywordflow">case</span> MPGeneralConstraintProto::kIndicatorConstraint: {</div>
|
|
<div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  <span class="keyword">const</span> <span class="keyword">auto</span>& indicator_constraint =</div>
|
|
<div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  general_constraint.indicator_constraint();</div>
|
|
<div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  <span class="keyword">const</span> MPConstraintProto& mp_constraint =</div>
|
|
<div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  indicator_constraint.constraint();</div>
|
|
<div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  ConstraintProto* <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> =</div>
|
|
<div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  scaler.AddConstraint(mp_model, mp_constraint, cp_model);</div>
|
|
<div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> == <span class="keyword">nullptr</span>) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  </div>
|
|
<div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  <span class="comment">// Add the indicator.</span></div>
|
|
<div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = indicator_constraint.var_index();</div>
|
|
<div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> = indicator_constraint.var_value();</div>
|
|
<div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->add_enforcement_literal(<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> == 1 ? <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> : <a class="code" href="namespaceoperations__research_1_1sat.html#ae0803b8198728cd4f6e58498d9c60091">NegatedRef</a>(<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>));</div>
|
|
<div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  }</div>
|
|
<div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  <span class="keywordflow">case</span> MPGeneralConstraintProto::kAndConstraint: {</div>
|
|
<div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  <span class="keyword">const</span> <span class="keyword">auto</span>& and_constraint = general_constraint.and_constraint();</div>
|
|
<div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  <span class="keyword">const</span> std::string& <a class="code" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a> = general_constraint.name();</div>
|
|
<div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  </div>
|
|
<div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  ConstraintProto* ct_pos = cp_model->add_constraints();</div>
|
|
<div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  ct_pos->set_name(<a class="code" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>.empty() ? <span class="stringliteral">""</span> : absl::StrCat(<a class="code" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>, <span class="stringliteral">"_pos"</span>));</div>
|
|
<div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  ct_pos->add_enforcement_literal(and_constraint.resultant_var_index());</div>
|
|
<div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  *ct_pos->mutable_bool_and()->mutable_literals() =</div>
|
|
<div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  and_constraint.var_index();</div>
|
|
<div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  </div>
|
|
<div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  ConstraintProto* ct_neg = cp_model->add_constraints();</div>
|
|
<div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  ct_neg->set_name(<a class="code" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>.empty() ? <span class="stringliteral">""</span> : absl::StrCat(<a class="code" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>, <span class="stringliteral">"_neg"</span>));</div>
|
|
<div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  ct_neg->add_enforcement_literal(</div>
|
|
<div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  <a class="code" href="namespaceoperations__research_1_1sat.html#ae0803b8198728cd4f6e58498d9c60091">NegatedRef</a>(and_constraint.resultant_var_index()));</div>
|
|
<div class="line"><a name="l00773"></a><span class="lineno"> 773</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 name="l00774"></a><span class="lineno"> 774</span>  ct_neg->mutable_bool_or()->add_literals(<a class="code" href="namespaceoperations__research_1_1sat.html#ae0803b8198728cd4f6e58498d9c60091">NegatedRef</a>(var_index));</div>
|
|
<div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  }</div>
|
|
<div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  }</div>
|
|
<div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  <span class="keywordflow">case</span> MPGeneralConstraintProto::kOrConstraint: {</div>
|
|
<div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  <span class="keyword">const</span> <span class="keyword">auto</span>& or_constraint = general_constraint.or_constraint();</div>
|
|
<div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  <span class="keyword">const</span> std::string& <a class="code" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a> = general_constraint.name();</div>
|
|
<div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  </div>
|
|
<div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  ConstraintProto* ct_pos = cp_model->add_constraints();</div>
|
|
<div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  ct_pos->set_name(<a class="code" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>.empty() ? <span class="stringliteral">""</span> : absl::StrCat(<a class="code" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>, <span class="stringliteral">"_pos"</span>));</div>
|
|
<div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  ct_pos->add_enforcement_literal(or_constraint.resultant_var_index());</div>
|
|
<div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  *ct_pos->mutable_bool_or()->mutable_literals() =</div>
|
|
<div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  or_constraint.var_index();</div>
|
|
<div class="line"><a name="l00787"></a><span class="lineno"> 787</span>  </div>
|
|
<div class="line"><a name="l00788"></a><span class="lineno"> 788</span>  ConstraintProto* ct_neg = cp_model->add_constraints();</div>
|
|
<div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  ct_neg->set_name(<a class="code" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>.empty() ? <span class="stringliteral">""</span> : absl::StrCat(<a class="code" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>, <span class="stringliteral">"_neg"</span>));</div>
|
|
<div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  ct_neg->add_enforcement_literal(</div>
|
|
<div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  <a class="code" href="namespaceoperations__research_1_1sat.html#ae0803b8198728cd4f6e58498d9c60091">NegatedRef</a>(or_constraint.resultant_var_index()));</div>
|
|
<div class="line"><a name="l00792"></a><span class="lineno"> 792</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 name="l00793"></a><span class="lineno"> 793</span>  ct_neg->mutable_bool_and()->add_literals(<a class="code" href="namespaceoperations__research_1_1sat.html#ae0803b8198728cd4f6e58498d9c60091">NegatedRef</a>(var_index));</div>
|
|
<div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  }</div>
|
|
<div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  }</div>
|
|
<div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  <span class="keywordflow">default</span>:</div>
|
|
<div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" href="log__severity_8h.html#ac9bcbe19995a8140cd4ec61773cd6e67">ERROR</a>) << <span class="stringliteral">"Can't convert general constraints of type "</span></div>
|
|
<div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  << general_constraint.general_constraint_case()</div>
|
|
<div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  << <span class="stringliteral">" to CpModelProto."</span>;</div>
|
|
<div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  }</div>
|
|
<div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  }</div>
|
|
<div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  </div>
|
|
<div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  <span class="comment">// Display the error/scaling on the constraints.</span></div>
|
|
<div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> log_info = <a class="code" href="vlog__is__on_8h.html#a956152cad330225654d128f35c00efce">VLOG_IS_ON</a>(1) || params.log_search_progress();</div>
|
|
<div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  <a class="code" href="base_2logging_8h.html#a09f7d88282cf92c9f231270ac113e5c6">LOG_IF</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>, log_info) << <span class="stringliteral">"Maximum constraint coefficient relative error: "</span></div>
|
|
<div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  << scaler.max_relative_coeff_error;</div>
|
|
<div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  <a class="code" href="base_2logging_8h.html#a09f7d88282cf92c9f231270ac113e5c6">LOG_IF</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>, log_info)</div>
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<div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  << <span class="stringliteral">"Maximum constraint worst-case activity relative error: "</span></div>
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|
<div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  << scaler.max_relative_rhs_error</div>
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|
<div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  << (scaler.max_relative_rhs_error > params.mip_check_precision()</div>
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<div class="line"><a name="l00813"></a><span class="lineno"> 813</span>  ? <span class="stringliteral">" [Potentially IMPRECISE]"</span></div>
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|
<div class="line"><a name="l00814"></a><span class="lineno"> 814</span>  : <span class="stringliteral">""</span>);</div>
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|
<div class="line"><a name="l00815"></a><span class="lineno"> 815</span>  <a class="code" href="base_2logging_8h.html#a09f7d88282cf92c9f231270ac113e5c6">LOG_IF</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>, log_info) << <span class="stringliteral">"Maximum constraint scaling factor: "</span></div>
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|
<div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  << scaler.max_scaling_factor;</div>
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|
<div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  </div>
|
|
<div class="line"><a name="l00818"></a><span class="lineno"> 818</span>  <span class="comment">// Add the objective.</span></div>
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|
<div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  std::vector<int> <a class="code" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a>;</div>
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|
<div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  std::vector<double> <a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>;</div>
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|
<div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  std::vector<double> <a class="code" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>;</div>
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|
<div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  std::vector<double> <a class="code" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>;</div>
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|
<div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  <span class="keywordtype">double</span> min_magnitude = std::numeric_limits<double>::infinity();</div>
|
|
<div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  <span class="keywordtype">double</span> max_magnitude = 0.0;</div>
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|
<div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  <span class="keywordtype">double</span> l1_norm = 0.0;</div>
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|
<div class="line"><a name="l00826"></a><span class="lineno"> 826</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 name="l00827"></a><span class="lineno"> 827</span>  <span class="keyword">const</span> MPVariableProto& mp_var = mp_model.variable(i);</div>
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|
<div class="line"><a name="l00828"></a><span class="lineno"> 828</span>  <span class="keywordflow">if</span> (mp_var.objective_coefficient() == 0.0) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00829"></a><span class="lineno"> 829</span>  </div>
|
|
<div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  <span class="keyword">const</span> <span class="keyword">auto</span>& var_proto = cp_model->variables(i);</div>
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|
<div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> lb = var_proto.domain(0);</div>
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|
<div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> ub = var_proto.domain(var_proto.domain_size() - 1);</div>
|
|
<div class="line"><a name="l00833"></a><span class="lineno"> 833</span>  <span class="keywordflow">if</span> (lb == 0 && ub == 0) <span class="keywordflow">continue</span>;</div>
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|
<div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  </div>
|
|
<div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  <a class="code" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a>.push_back(i);</div>
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|
<div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  <a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.push_back(mp_var.objective_coefficient());</div>
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|
<div class="line"><a name="l00837"></a><span class="lineno"> 837</span>  <a class="code" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>.push_back(lb);</div>
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|
<div class="line"><a name="l00838"></a><span class="lineno"> 838</span>  <a class="code" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>.push_back(ub);</div>
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|
<div class="line"><a name="l00839"></a><span class="lineno"> 839</span>  min_magnitude = <a class="code" href="alldiff__cst_8cc.html#a021e695f54a13bd809c34b2f4ca87c37">std::min</a>(min_magnitude, std::abs(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.back()));</div>
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|
<div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  max_magnitude = <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::max</a>(max_magnitude, std::abs(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.back()));</div>
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|
<div class="line"><a name="l00841"></a><span class="lineno"> 841</span>  l1_norm += std::abs(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.back());</div>
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|
<div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  }</div>
|
|
<div class="line"><a name="l00843"></a><span class="lineno"> 843</span>  <span class="keywordflow">if</span> (!<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.empty()) {</div>
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|
<div class="line"><a name="l00844"></a><span class="lineno"> 844</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> average_magnitude =</div>
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|
<div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  l1_norm / <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.size());</div>
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|
<div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  <a class="code" href="base_2logging_8h.html#a09f7d88282cf92c9f231270ac113e5c6">LOG_IF</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>, log_info) << <span class="stringliteral">"Objective magnitude in ["</span> << min_magnitude</div>
|
|
<div class="line"><a name="l00847"></a><span class="lineno"> 847</span>  << <span class="stringliteral">", "</span> << max_magnitude</div>
|
|
<div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  << <span class="stringliteral">"] average = "</span> << average_magnitude;</div>
|
|
<div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  }</div>
|
|
<div class="line"><a name="l00850"></a><span class="lineno"> 850</span>  <span class="keywordflow">if</span> (!<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.empty() || mp_model.objective_offset() != 0.0) {</div>
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|
<div class="line"><a name="l00851"></a><span class="lineno"> 851</span>  <span class="keywordtype">double</span> scaling_factor = <a class="code" href="namespaceoperations__research.html#afd62b70eb0f46a86016aeda8edea45fa">GetBestScalingOfDoublesToInt64</a>(</div>
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|
<div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  <a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, <a class="code" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>, <a class="code" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>, kScalingTarget);</div>
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|
<div class="line"><a name="l00853"></a><span class="lineno"> 853</span>  </div>
|
|
<div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  <span class="comment">// Returns the smallest factor of the form 2^i that gives us an absolute</span></div>
|
|
<div class="line"><a name="l00855"></a><span class="lineno"> 855</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 name="l00856"></a><span class="lineno"> 856</span>  <span class="comment">// overflow.</span></div>
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|
<div class="line"><a name="l00857"></a><span class="lineno"> 857</span>  <span class="comment">//</span></div>
|
|
<div class="line"><a name="l00858"></a><span class="lineno"> 858</span>  <span class="comment">// TODO(user): Make this faster.</span></div>
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|
<div class="line"><a name="l00859"></a><span class="lineno"> 859</span>  <span class="keywordtype">double</span> x = <a class="code" href="alldiff__cst_8cc.html#a021e695f54a13bd809c34b2f4ca87c37">std::min</a>(scaling_factor, 1.0);</div>
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|
<div class="line"><a name="l00860"></a><span class="lineno"> 860</span>  <span class="keywordtype">double</span> relative_coeff_error;</div>
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|
<div class="line"><a name="l00861"></a><span class="lineno"> 861</span>  <span class="keywordtype">double</span> scaled_sum_error;</div>
|
|
<div class="line"><a name="l00862"></a><span class="lineno"> 862</span>  <span class="keywordflow">for</span> (; x <= scaling_factor; x *= 2) {</div>
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|
<div class="line"><a name="l00863"></a><span class="lineno"> 863</span>  <a class="code" href="namespaceoperations__research.html#a46f21c3da23685e58b31d880b2144458">ComputeScalingErrors</a>(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, <a class="code" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>, <a class="code" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>, x,</div>
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|
<div class="line"><a name="l00864"></a><span class="lineno"> 864</span>  &relative_coeff_error, &scaled_sum_error);</div>
|
|
<div class="line"><a name="l00865"></a><span class="lineno"> 865</span>  <span class="keywordflow">if</span> (scaled_sum_error < kWantedPrecision * x) <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00866"></a><span class="lineno"> 866</span>  }</div>
|
|
<div class="line"><a name="l00867"></a><span class="lineno"> 867</span>  scaling_factor = x;</div>
|
|
<div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  </div>
|
|
<div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  <span class="comment">// Same remark as for the constraint.</span></div>
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|
<div class="line"><a name="l00870"></a><span class="lineno"> 870</span>  <span class="comment">// TODO(user): Extract common code.</span></div>
|
|
<div class="line"><a name="l00871"></a><span class="lineno"> 871</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> integer_factor = FindFractionalScaling(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, 1e-8);</div>
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|
<div class="line"><a name="l00872"></a><span class="lineno"> 872</span>  <span class="keywordflow">if</span> (integer_factor != 0 && integer_factor < scaling_factor) {</div>
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|
<div class="line"><a name="l00873"></a><span class="lineno"> 873</span>  <a class="code" href="namespaceoperations__research.html#a46f21c3da23685e58b31d880b2144458">ComputeScalingErrors</a>(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, <a class="code" href="sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0">lower_bounds</a>, <a class="code" href="sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3">upper_bounds</a>, x,</div>
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|
<div class="line"><a name="l00874"></a><span class="lineno"> 874</span>  &relative_coeff_error, &scaled_sum_error);</div>
|
|
<div class="line"><a name="l00875"></a><span class="lineno"> 875</span>  <span class="keywordflow">if</span> (scaled_sum_error < kWantedPrecision * integer_factor) {</div>
|
|
<div class="line"><a name="l00876"></a><span class="lineno"> 876</span>  scaling_factor = integer_factor;</div>
|
|
<div class="line"><a name="l00877"></a><span class="lineno"> 877</span>  }</div>
|
|
<div class="line"><a name="l00878"></a><span class="lineno"> 878</span>  }</div>
|
|
<div class="line"><a name="l00879"></a><span class="lineno"> 879</span>  </div>
|
|
<div class="line"><a name="l00880"></a><span class="lineno"> 880</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> gcd = <a class="code" href="namespaceoperations__research.html#a4256c1ce10497f58f5c8b3d2abc57525">ComputeGcdOfRoundedDoubles</a>(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, scaling_factor);</div>
|
|
<div class="line"><a name="l00881"></a><span class="lineno"> 881</span>  </div>
|
|
<div class="line"><a name="l00882"></a><span class="lineno"> 882</span>  <span class="comment">// Display the objective error/scaling.</span></div>
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|
<div class="line"><a name="l00883"></a><span class="lineno"> 883</span>  <a class="code" href="base_2logging_8h.html#a09f7d88282cf92c9f231270ac113e5c6">LOG_IF</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>, log_info)</div>
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|
<div class="line"><a name="l00884"></a><span class="lineno"> 884</span>  << <span class="stringliteral">"Objective coefficient relative error: "</span> << relative_coeff_error</div>
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|
<div class="line"><a name="l00885"></a><span class="lineno"> 885</span>  << (relative_coeff_error > params.mip_check_precision() ? <span class="stringliteral">" [IMPRECISE]"</span></div>
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|
<div class="line"><a name="l00886"></a><span class="lineno"> 886</span>  : <span class="stringliteral">""</span>);</div>
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|
<div class="line"><a name="l00887"></a><span class="lineno"> 887</span>  <a class="code" href="base_2logging_8h.html#a09f7d88282cf92c9f231270ac113e5c6">LOG_IF</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>, log_info) << <span class="stringliteral">"Objective worst-case absolute error: "</span></div>
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|
<div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  << scaled_sum_error / scaling_factor;</div>
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|
<div class="line"><a name="l00889"></a><span class="lineno"> 889</span>  <a class="code" href="base_2logging_8h.html#a09f7d88282cf92c9f231270ac113e5c6">LOG_IF</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>, log_info) << <span class="stringliteral">"Objective scaling factor: "</span></div>
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|
<div class="line"><a name="l00890"></a><span class="lineno"> 890</span>  << scaling_factor / gcd;</div>
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|
<div class="line"><a name="l00891"></a><span class="lineno"> 891</span>  </div>
|
|
<div class="line"><a name="l00892"></a><span class="lineno"> 892</span>  <span class="comment">// Note that here we set the scaling factor for the inverse operation of</span></div>
|
|
<div class="line"><a name="l00893"></a><span class="lineno"> 893</span>  <span class="comment">// getting the "true" objective value from the scaled one. Hence the</span></div>
|
|
<div class="line"><a name="l00894"></a><span class="lineno"> 894</span>  <span class="comment">// inverse.</span></div>
|
|
<div class="line"><a name="l00895"></a><span class="lineno"> 895</span>  <span class="keyword">auto</span>* objective = cp_model->mutable_objective();</div>
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|
<div class="line"><a name="l00896"></a><span class="lineno"> 896</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> mult = mp_model.maximize() ? -1 : 1;</div>
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|
<div class="line"><a name="l00897"></a><span class="lineno"> 897</span>  objective->set_offset(mp_model.objective_offset() * scaling_factor / gcd *</div>
|
|
<div class="line"><a name="l00898"></a><span class="lineno"> 898</span>  mult);</div>
|
|
<div class="line"><a name="l00899"></a><span class="lineno"> 899</span>  objective->set_scaling_factor(1.0 / scaling_factor * gcd * mult);</div>
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<div class="line"><a name="l00900"></a><span class="lineno"> 900</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.size(); ++i) {</div>
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<div class="line"><a name="l00901"></a><span class="lineno"> 901</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> =</div>
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|
<div class="line"><a name="l00902"></a><span class="lineno"> 902</span>  <span class="keyword">static_cast<</span><a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a><span class="keyword">></span>(std::round(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>[i] * scaling_factor)) /</div>
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<div class="line"><a name="l00903"></a><span class="lineno"> 903</span>  gcd;</div>
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<div class="line"><a name="l00904"></a><span class="lineno"> 904</span>  <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> != 0) {</div>
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<div class="line"><a name="l00905"></a><span class="lineno"> 905</span>  objective->add_vars(<a class="code" href="sat_2lp__utils_8cc.html#a742ae1554f2decd63d35be3e6ff4f58d">var_indices</a>[i]);</div>
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<div class="line"><a name="l00906"></a><span class="lineno"> 906</span>  objective->add_coeffs(<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> * mult);</div>
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|
<div class="line"><a name="l00907"></a><span class="lineno"> 907</span>  }</div>
|
|
<div class="line"><a name="l00908"></a><span class="lineno"> 908</span>  }</div>
|
|
<div class="line"><a name="l00909"></a><span class="lineno"> 909</span>  }</div>
|
|
<div class="line"><a name="l00910"></a><span class="lineno"> 910</span>  </div>
|
|
<div class="line"><a name="l00911"></a><span class="lineno"> 911</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00912"></a><span class="lineno"> 912</span> }</div>
|
|
<div class="line"><a name="l00913"></a><span class="lineno"> 913</span>  </div>
|
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<div class="line"><a name="l00914"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a7b33067a7dffa07cd5748bc4552c85a1"> 914</a></span> <span class="keywordtype">bool</span> <a class="code" href="namespaceoperations__research_1_1sat.html#a7b33067a7dffa07cd5748bc4552c85a1">ConvertBinaryMPModelProtoToBooleanProblem</a>(<span class="keyword">const</span> MPModelProto& mp_model,</div>
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<div class="line"><a name="l00915"></a><span class="lineno"> 915</span>  LinearBooleanProblem* problem) {</div>
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<div class="line"><a name="l00916"></a><span class="lineno"> 916</span>  <a class="code" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(problem != <span class="keyword">nullptr</span>);</div>
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<div class="line"><a name="l00917"></a><span class="lineno"> 917</span>  problem->Clear();</div>
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<div class="line"><a name="l00918"></a><span class="lineno"> 918</span>  problem->set_name(mp_model.name());</div>
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<div class="line"><a name="l00919"></a><span class="lineno"> 919</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 name="l00920"></a><span class="lineno"> 920</span>  problem->set_num_variables(num_variables);</div>
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<div class="line"><a name="l00921"></a><span class="lineno"> 921</span>  </div>
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<div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  <span class="comment">// Test if the variables are binary variables.</span></div>
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<div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  <span class="comment">// Add constraints for the fixed variables.</span></div>
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<div class="line"><a name="l00924"></a><span class="lineno"> 924</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 name="l00925"></a><span class="lineno"> 925</span>  <span class="keyword">const</span> MPVariableProto& mp_var = mp_model.variable(var_id);</div>
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<div class="line"><a name="l00926"></a><span class="lineno"> 926</span>  problem->add_var_names(mp_var.name());</div>
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<div class="line"><a name="l00927"></a><span class="lineno"> 927</span>  </div>
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<div class="line"><a name="l00928"></a><span class="lineno"> 928</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 name="l00929"></a><span class="lineno"> 929</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 name="l00930"></a><span class="lineno"> 930</span>  <span class="comment">// before aborting the function and returning false.</span></div>
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<div class="line"><a name="l00931"></a><span class="lineno"> 931</span>  <span class="keywordtype">bool</span> is_binary = mp_var.is_integer();</div>
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<div class="line"><a name="l00932"></a><span class="lineno"> 932</span>  </div>
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<div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  <span class="keyword">const</span> <a class="code" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> lb = mp_var.lower_bound();</div>
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<div class="line"><a name="l00934"></a><span class="lineno"> 934</span>  <span class="keyword">const</span> <a class="code" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> ub = mp_var.upper_bound();</div>
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<div class="line"><a name="l00935"></a><span class="lineno"> 935</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 name="l00936"></a><span class="lineno"> 936</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 name="l00937"></a><span class="lineno"> 937</span>  <span class="keywordflow">if</span> (is_binary) {</div>
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<div class="line"><a name="l00938"></a><span class="lineno"> 938</span>  <span class="comment">// 4 cases.</span></div>
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<div class="line"><a name="l00939"></a><span class="lineno"> 939</span>  <span class="keywordflow">if</span> (lb <= 0.0 && ub >= 1.0) {</div>
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<div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  <span class="comment">// Binary variable. Ok.</span></div>
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<div class="line"><a name="l00941"></a><span class="lineno"> 941</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 name="l00942"></a><span class="lineno"> 942</span>  <span class="comment">// Fixed variable at 1.</span></div>
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<div class="line"><a name="l00943"></a><span class="lineno"> 943</span>  LinearBooleanConstraint* constraint = problem->add_constraints();</div>
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<div class="line"><a name="l00944"></a><span class="lineno"> 944</span>  constraint->set_lower_bound(1);</div>
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<div class="line"><a name="l00945"></a><span class="lineno"> 945</span>  constraint->set_upper_bound(1);</div>
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<div class="line"><a name="l00946"></a><span class="lineno"> 946</span>  constraint->add_literals(var_id + 1);</div>
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<div class="line"><a name="l00947"></a><span class="lineno"> 947</span>  constraint->add_coefficients(1);</div>
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<div class="line"><a name="l00948"></a><span class="lineno"> 948</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 name="l00949"></a><span class="lineno"> 949</span>  <span class="comment">// Fixed variable at 0.</span></div>
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<div class="line"><a name="l00950"></a><span class="lineno"> 950</span>  LinearBooleanConstraint* constraint = problem->add_constraints();</div>
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<div class="line"><a name="l00951"></a><span class="lineno"> 951</span>  constraint->set_lower_bound(0);</div>
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<div class="line"><a name="l00952"></a><span class="lineno"> 952</span>  constraint->set_upper_bound(0);</div>
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<div class="line"><a name="l00953"></a><span class="lineno"> 953</span>  constraint->add_literals(var_id + 1);</div>
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<div class="line"><a name="l00954"></a><span class="lineno"> 954</span>  constraint->add_coefficients(1);</div>
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<div class="line"><a name="l00955"></a><span class="lineno"> 955</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00956"></a><span class="lineno"> 956</span>  <span class="comment">// No possible integer value!</span></div>
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<div class="line"><a name="l00957"></a><span class="lineno"> 957</span>  is_binary = <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00958"></a><span class="lineno"> 958</span>  }</div>
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<div class="line"><a name="l00959"></a><span class="lineno"> 959</span>  }</div>
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<div class="line"><a name="l00960"></a><span class="lineno"> 960</span>  </div>
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<div class="line"><a name="l00961"></a><span class="lineno"> 961</span>  <span class="comment">// Abort if the variable is not binary.</span></div>
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<div class="line"><a name="l00962"></a><span class="lineno"> 962</span>  <span class="keywordflow">if</span> (!is_binary) {</div>
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<div class="line"><a name="l00963"></a><span class="lineno"> 963</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" 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 name="l00964"></a><span class="lineno"> 964</span>  << mp_var.name() << <span class="stringliteral">" is not binary. "</span></div>
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<div class="line"><a name="l00965"></a><span class="lineno"> 965</span>  << <span class="stringliteral">"lb: "</span> << lb << <span class="stringliteral">" ub: "</span> << ub;</div>
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<div class="line"><a name="l00966"></a><span class="lineno"> 966</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00967"></a><span class="lineno"> 967</span>  }</div>
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<div class="line"><a name="l00968"></a><span class="lineno"> 968</span>  }</div>
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<div class="line"><a name="l00969"></a><span class="lineno"> 969</span>  </div>
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<div class="line"><a name="l00970"></a><span class="lineno"> 970</span>  <span class="comment">// Variables needed to scale the double coefficients into int64.</span></div>
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<div class="line"><a name="l00971"></a><span class="lineno"> 971</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> kInt64Max = <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::numeric_limits<int64>::max</a>();</div>
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<div class="line"><a name="l00972"></a><span class="lineno"> 972</span>  <span class="keywordtype">double</span> max_relative_error = 0.0;</div>
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<div class="line"><a name="l00973"></a><span class="lineno"> 973</span>  <span class="keywordtype">double</span> max_bound_error = 0.0;</div>
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<div class="line"><a name="l00974"></a><span class="lineno"> 974</span>  <span class="keywordtype">double</span> <a class="code" href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a">max_scaling_factor</a> = 0.0;</div>
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<div class="line"><a name="l00975"></a><span class="lineno"> 975</span>  <span class="keywordtype">double</span> relative_error = 0.0;</div>
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<div class="line"><a name="l00976"></a><span class="lineno"> 976</span>  <span class="keywordtype">double</span> scaling_factor = 0.0;</div>
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<div class="line"><a name="l00977"></a><span class="lineno"> 977</span>  std::vector<double> <a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>;</div>
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<div class="line"><a name="l00978"></a><span class="lineno"> 978</span>  </div>
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<div class="line"><a name="l00979"></a><span class="lineno"> 979</span>  <span class="comment">// Add all constraints.</span></div>
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<div class="line"><a name="l00980"></a><span class="lineno"> 980</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> MPConstraintProto& mp_constraint : mp_model.constraint()) {</div>
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<div class="line"><a name="l00981"></a><span class="lineno"> 981</span>  LinearBooleanConstraint* constraint = problem->add_constraints();</div>
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<div class="line"><a name="l00982"></a><span class="lineno"> 982</span>  constraint->set_name(mp_constraint.name());</div>
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<div class="line"><a name="l00983"></a><span class="lineno"> 983</span>  </div>
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<div class="line"><a name="l00984"></a><span class="lineno"> 984</span>  <span class="comment">// First scale the coefficients of the constraints.</span></div>
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<div class="line"><a name="l00985"></a><span class="lineno"> 985</span>  <a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.clear();</div>
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<div class="line"><a name="l00986"></a><span class="lineno"> 986</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 name="l00987"></a><span class="lineno"> 987</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 name="l00988"></a><span class="lineno"> 988</span>  <a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.push_back(mp_constraint.coefficient(i));</div>
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<div class="line"><a name="l00989"></a><span class="lineno"> 989</span>  }</div>
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<div class="line"><a name="l00990"></a><span class="lineno"> 990</span>  <a class="code" href="namespaceoperations__research.html#afd62b70eb0f46a86016aeda8edea45fa">GetBestScalingOfDoublesToInt64</a>(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, kInt64Max, &scaling_factor,</div>
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<div class="line"><a name="l00991"></a><span class="lineno"> 991</span>  &relative_error);</div>
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<div class="line"><a name="l00992"></a><span class="lineno"> 992</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> gcd = <a class="code" href="namespaceoperations__research.html#a4256c1ce10497f58f5c8b3d2abc57525">ComputeGcdOfRoundedDoubles</a>(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, scaling_factor);</div>
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<div class="line"><a name="l00993"></a><span class="lineno"> 993</span>  max_relative_error = <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::max</a>(relative_error, max_relative_error);</div>
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<div class="line"><a name="l00994"></a><span class="lineno"> 994</span>  <a class="code" href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a">max_scaling_factor</a> = <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::max</a>(scaling_factor / gcd, <a class="code" href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a">max_scaling_factor</a>);</div>
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<div class="line"><a name="l00995"></a><span class="lineno"> 995</span>  </div>
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<div class="line"><a name="l00996"></a><span class="lineno"> 996</span>  <span class="keywordtype">double</span> bound_error = 0.0;</div>
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<div class="line"><a name="l00997"></a><span class="lineno"> 997</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 name="l00998"></a><span class="lineno"> 998</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 name="l00999"></a><span class="lineno"> 999</span>  bound_error += std::abs(round(scaled_value) - scaled_value);</div>
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<div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> = <span class="keyword">static_cast<</span><a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a><span class="keyword">></span>(round(scaled_value)) / gcd;</div>
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<div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>  <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> != 0) {</div>
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<div class="line"><a name="l01002"></a><span class="lineno"> 1002</span>  constraint->add_literals(mp_constraint.var_index(i) + 1);</div>
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<div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>  constraint->add_coefficients(<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>);</div>
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<div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>  }</div>
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<div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>  }</div>
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<div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>  max_bound_error = <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::max</a>(max_bound_error, bound_error);</div>
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<div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>  </div>
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<div class="line"><a name="l01008"></a><span class="lineno"> 1008</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 name="l01009"></a><span class="lineno"> 1009</span>  <span class="comment">// GetBestScalingOfDoublesToInt64() because we know that the sum of absolute</span></div>
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<div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>  <span class="comment">// coefficients of the constraint fit on an int64. If one of the scaled</span></div>
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<div class="line"><a name="l01011"></a><span class="lineno"> 1011</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 name="l01012"></a><span class="lineno"> 1012</span>  <span class="comment">// constraint is just trivial or unsatisfiable.</span></div>
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<div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>  <span class="keyword">const</span> <a class="code" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> lb = mp_constraint.lower_bound();</div>
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<div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>  <span class="keywordflow">if</span> (lb != -<a class="code" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a>) {</div>
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<div class="line"><a name="l01015"></a><span class="lineno"> 1015</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 name="l01016"></a><span class="lineno"> 1016</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" 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 name="l01017"></a><span class="lineno"> 1017</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>  }</div>
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<div class="line"><a name="l01019"></a><span class="lineno"> 1019</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 name="l01020"></a><span class="lineno"> 1020</span>  <span class="comment">// Otherwise, the constraint is not needed.</span></div>
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<div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>  constraint->set_lower_bound(</div>
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<div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>  <span class="keyword">static_cast<</span><a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a><span class="keyword">></span>(round(lb * scaling_factor - bound_error)) / gcd);</div>
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<div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>  }</div>
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|
<div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>  }</div>
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<div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>  <span class="keyword">const</span> <a class="code" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> ub = mp_constraint.upper_bound();</div>
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<div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>  <span class="keywordflow">if</span> (ub != <a class="code" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a>) {</div>
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|
<div class="line"><a name="l01027"></a><span class="lineno"> 1027</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 name="l01028"></a><span class="lineno"> 1028</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" 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 name="l01029"></a><span class="lineno"> 1029</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>  }</div>
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<div class="line"><a name="l01031"></a><span class="lineno"> 1031</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 name="l01032"></a><span class="lineno"> 1032</span>  <span class="comment">// Otherwise, the constraint is not needed.</span></div>
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<div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>  constraint->set_upper_bound(</div>
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|
<div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>  <span class="keyword">static_cast<</span><a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a><span class="keyword">></span>(round(ub * scaling_factor + bound_error)) / gcd);</div>
|
|
<div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>  }</div>
|
|
<div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>  }</div>
|
|
<div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>  }</div>
|
|
<div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>  </div>
|
|
<div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>  <span class="comment">// Display the error/scaling without taking into account the objective first.</span></div>
|
|
<div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>) << <span class="stringliteral">"Maximum constraint relative error: "</span> << max_relative_error;</div>
|
|
<div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>) << <span class="stringliteral">"Maximum constraint bound error: "</span> << max_bound_error;</div>
|
|
<div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>) << <span class="stringliteral">"Maximum constraint scaling factor: "</span> << <a class="code" href="sat_2lp__utils_8cc.html#a24a6b02429aaf5b933eac21ba118ee3a">max_scaling_factor</a>;</div>
|
|
<div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>  </div>
|
|
<div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>  <span class="comment">// Add the objective.</span></div>
|
|
<div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>  <a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.clear();</div>
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|
<div class="line"><a name="l01046"></a><span class="lineno"> 1046</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 name="l01047"></a><span class="lineno"> 1047</span>  <span class="keyword">const</span> MPVariableProto& mp_var = mp_model.variable(var_id);</div>
|
|
<div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>  <a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>.push_back(mp_var.objective_coefficient());</div>
|
|
<div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>  }</div>
|
|
<div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>  <a class="code" href="namespaceoperations__research.html#afd62b70eb0f46a86016aeda8edea45fa">GetBestScalingOfDoublesToInt64</a>(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, kInt64Max, &scaling_factor,</div>
|
|
<div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>  &relative_error);</div>
|
|
<div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> gcd = <a class="code" href="namespaceoperations__research.html#a4256c1ce10497f58f5c8b3d2abc57525">ComputeGcdOfRoundedDoubles</a>(<a class="code" href="sat_2lp__utils_8cc.html#ab1734711414da2e668957d24a41b1ddf">coefficients</a>, scaling_factor);</div>
|
|
<div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>  max_relative_error = <a class="code" href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">std::max</a>(relative_error, max_relative_error);</div>
|
|
<div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>  </div>
|
|
<div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>  <span class="comment">// Display the objective error/scaling.</span></div>
|
|
<div class="line"><a name="l01056"></a><span class="lineno"> 1056</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>) << <span class="stringliteral">"objective relative error: "</span> << relative_error;</div>
|
|
<div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>) << <span class="stringliteral">"objective scaling factor: "</span> << scaling_factor / gcd;</div>
|
|
<div class="line"><a name="l01058"></a><span class="lineno"> 1058</span>  </div>
|
|
<div class="line"><a name="l01059"></a><span class="lineno"> 1059</span>  LinearObjective* objective = problem->mutable_objective();</div>
|
|
<div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>  objective->set_offset(mp_model.objective_offset() * scaling_factor / gcd);</div>
|
|
<div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>  </div>
|
|
<div class="line"><a name="l01062"></a><span class="lineno"> 1062</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 name="l01063"></a><span class="lineno"> 1063</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 name="l01064"></a><span class="lineno"> 1064</span>  objective->set_scaling_factor(1.0 / scaling_factor * gcd);</div>
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|
<div class="line"><a name="l01065"></a><span class="lineno"> 1065</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 name="l01066"></a><span class="lineno"> 1066</span>  <span class="keyword">const</span> MPVariableProto& mp_var = mp_model.variable(var_id);</div>
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|
<div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>  <span class="keyword">const</span> <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> = <span class="keyword">static_cast<</span><a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a><span class="keyword">></span>(round(</div>
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|
<div class="line"><a name="l01068"></a><span class="lineno"> 1068</span>  mp_var.objective_coefficient() * scaling_factor)) /</div>
|
|
<div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>  gcd;</div>
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|
<div class="line"><a name="l01070"></a><span class="lineno"> 1070</span>  <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> != 0) {</div>
|
|
<div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>  objective->add_literals(var_id + 1);</div>
|
|
<div class="line"><a name="l01072"></a><span class="lineno"> 1072</span>  objective->add_coefficients(<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>);</div>
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|
<div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>  }</div>
|
|
<div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>  }</div>
|
|
<div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>  </div>
|
|
<div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>  <span class="comment">// If the problem was a maximization one, we need to modify the objective.</span></div>
|
|
<div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>  <span class="keywordflow">if</span> (mp_model.maximize()) <a class="code" href="namespaceoperations__research_1_1sat.html#aaf57d784624873d840a2589efa6ff1a1">ChangeOptimizationDirection</a>(problem);</div>
|
|
<div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>  </div>
|
|
<div class="line"><a name="l01079"></a><span class="lineno"> 1079</span>  <span class="comment">// Test the precision of the conversion.</span></div>
|
|
<div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> kRelativeTolerance = 1e-8;</div>
|
|
<div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>  <span class="keywordflow">if</span> (max_relative_error > kRelativeTolerance) {</div>
|
|
<div class="line"><a name="l01082"></a><span class="lineno"> 1082</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" href="log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7">WARNING</a>) << <span class="stringliteral">"The relative error during double -> int64 conversion "</span></div>
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|
<div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>  << <span class="stringliteral">"is too high!"</span>;</div>
|
|
<div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l01085"></a><span class="lineno"> 1085</span>  }</div>
|
|
<div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l01087"></a><span class="lineno"> 1087</span> }</div>
|
|
<div class="line"><a name="l01088"></a><span class="lineno"> 1088</span>  </div>
|
|
<div class="line"><a name="l01089"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a4591e100a0f29a249169e5833995cd31"> 1089</a></span> <span class="keywordtype">void</span> <a class="code" href="namespaceoperations__research_1_1sat.html#a4591e100a0f29a249169e5833995cd31">ConvertBooleanProblemToLinearProgram</a>(<span class="keyword">const</span> LinearBooleanProblem& problem,</div>
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|
<div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>  <a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html">glop::LinearProgram</a>* lp) {</div>
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|
<div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>  lp-><a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html#aa71d36872f416feaa853788a7a7a7ef8">Clear</a>();</div>
|
|
<div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < problem.num_variables(); ++i) {</div>
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|
<div class="line"><a name="l01093"></a><span class="lineno"> 1093</span>  <span class="keyword">const</span> ColIndex <a class="code" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a> = lp-><a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html#a695ac3d8db5a986f572711f2ef3a6a39">CreateNewVariable</a>();</div>
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|
<div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>  lp-><a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html#a7ddcdc56f25d075e18d62ddbcd3389b2">SetVariableType</a>(<a class="code" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>, <a class="code" 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 name="l01095"></a><span class="lineno"> 1095</span>  lp-><a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093">SetVariableBounds</a>(<a class="code" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>, 0.0, 1.0);</div>
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|
<div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>  }</div>
|
|
<div class="line"><a name="l01097"></a><span class="lineno"> 1097</span>  </div>
|
|
<div class="line"><a name="l01098"></a><span class="lineno"> 1098</span>  <span class="comment">// Variables name are optional.</span></div>
|
|
<div class="line"><a name="l01099"></a><span class="lineno"> 1099</span>  <span class="keywordflow">if</span> (problem.var_names_size() != 0) {</div>
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|
<div class="line"><a name="l01100"></a><span class="lineno"> 1100</span>  <a class="code" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(problem.var_names_size(), problem.num_variables());</div>
|
|
<div class="line"><a name="l01101"></a><span class="lineno"> 1101</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < problem.num_variables(); ++i) {</div>
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|
<div class="line"><a name="l01102"></a><span class="lineno"> 1102</span>  lp-><a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html#a45e12b3d1e2daa3e00bab9d7bf72f444">SetVariableName</a>(ColIndex(i), problem.var_names(i));</div>
|
|
<div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>  }</div>
|
|
<div class="line"><a name="l01104"></a><span class="lineno"> 1104</span>  }</div>
|
|
<div class="line"><a name="l01105"></a><span class="lineno"> 1105</span>  </div>
|
|
<div class="line"><a name="l01106"></a><span class="lineno"> 1106</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> LinearBooleanConstraint& constraint : problem.constraints()) {</div>
|
|
<div class="line"><a name="l01107"></a><span class="lineno"> 1107</span>  <span class="keyword">const</span> RowIndex constraint_index = lp-><a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html#ad9d564651057c77b3f2ca1293134557f">CreateNewConstraint</a>();</div>
|
|
<div class="line"><a name="l01108"></a><span class="lineno"> 1108</span>  lp-><a class="code" 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 name="l01109"></a><span class="lineno"> 1109</span>  <span class="keywordtype">double</span> sum = 0.0;</div>
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|
<div class="line"><a name="l01110"></a><span class="lineno"> 1110</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 name="l01111"></a><span class="lineno"> 1111</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a> = constraint.literals(i);</div>
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|
<div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> coeff = constraint.coefficients(i);</div>
|
|
<div class="line"><a name="l01113"></a><span class="lineno"> 1113</span>  <span class="keyword">const</span> ColIndex variable_index = ColIndex(abs(<a class="code" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>) - 1);</div>
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|
<div class="line"><a name="l01114"></a><span class="lineno"> 1114</span>  <span class="keywordflow">if</span> (<a class="code" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a> < 0) {</div>
|
|
<div class="line"><a name="l01115"></a><span class="lineno"> 1115</span>  sum += coeff;</div>
|
|
<div class="line"><a name="l01116"></a><span class="lineno"> 1116</span>  lp-><a class="code" 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 name="l01117"></a><span class="lineno"> 1117</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l01118"></a><span class="lineno"> 1118</span>  lp-><a class="code" 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 name="l01119"></a><span class="lineno"> 1119</span>  }</div>
|
|
<div class="line"><a name="l01120"></a><span class="lineno"> 1120</span>  }</div>
|
|
<div class="line"><a name="l01121"></a><span class="lineno"> 1121</span>  lp-><a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html#a62b98dec38b6506442f9fc63f1a9b88f">SetConstraintBounds</a>(</div>
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|
<div class="line"><a name="l01122"></a><span class="lineno"> 1122</span>  constraint_index,</div>
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|
<div class="line"><a name="l01123"></a><span class="lineno"> 1123</span>  constraint.has_lower_bound() ? constraint.lower_bound() - sum</div>
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|
<div class="line"><a name="l01124"></a><span class="lineno"> 1124</span>  : -<a class="code" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a>,</div>
|
|
<div class="line"><a name="l01125"></a><span class="lineno"> 1125</span>  constraint.has_upper_bound() ? constraint.upper_bound() - sum</div>
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|
<div class="line"><a name="l01126"></a><span class="lineno"> 1126</span>  : <a class="code" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">kInfinity</a>);</div>
|
|
<div class="line"><a name="l01127"></a><span class="lineno"> 1127</span>  }</div>
|
|
<div class="line"><a name="l01128"></a><span class="lineno"> 1128</span>  </div>
|
|
<div class="line"><a name="l01129"></a><span class="lineno"> 1129</span>  <span class="comment">// Objective.</span></div>
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|
<div class="line"><a name="l01130"></a><span class="lineno"> 1130</span>  {</div>
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|
<div class="line"><a name="l01131"></a><span class="lineno"> 1131</span>  <span class="keywordtype">double</span> sum = 0.0;</div>
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|
<div class="line"><a name="l01132"></a><span class="lineno"> 1132</span>  <span class="keyword">const</span> LinearObjective& objective = problem.objective();</div>
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|
<div class="line"><a name="l01133"></a><span class="lineno"> 1133</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> scaling_factor = objective.scaling_factor();</div>
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|
<div class="line"><a name="l01134"></a><span class="lineno"> 1134</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < objective.literals_size(); ++i) {</div>
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|
<div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a> = objective.literals(i);</div>
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|
<div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> coeff =</div>
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|
<div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>  <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(objective.coefficients(i)) * scaling_factor;</div>
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|
<div class="line"><a name="l01138"></a><span class="lineno"> 1138</span>  <span class="keyword">const</span> ColIndex variable_index = ColIndex(abs(<a class="code" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>) - 1);</div>
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|
<div class="line"><a name="l01139"></a><span class="lineno"> 1139</span>  <span class="keywordflow">if</span> (<a class="code" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a> < 0) {</div>
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|
<div class="line"><a name="l01140"></a><span class="lineno"> 1140</span>  sum += coeff;</div>
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<div class="line"><a name="l01141"></a><span class="lineno"> 1141</span>  lp-><a class="code" 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 name="l01142"></a><span class="lineno"> 1142</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l01143"></a><span class="lineno"> 1143</span>  lp-><a class="code" 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 name="l01144"></a><span class="lineno"> 1144</span>  }</div>
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<div class="line"><a name="l01145"></a><span class="lineno"> 1145</span>  }</div>
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<div class="line"><a name="l01146"></a><span class="lineno"> 1146</span>  lp-><a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html#a2a29cc40908e09b0c565ceea15b77d89">SetObjectiveOffset</a>((sum + objective.offset()) * scaling_factor);</div>
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<div class="line"><a name="l01147"></a><span class="lineno"> 1147</span>  lp-><a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html#ae3201a343d8df987411b55830bff7fa3">SetMaximizationProblem</a>(scaling_factor < 0);</div>
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<div class="line"><a name="l01148"></a><span class="lineno"> 1148</span>  }</div>
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<div class="line"><a name="l01149"></a><span class="lineno"> 1149</span>  </div>
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<div class="line"><a name="l01150"></a><span class="lineno"> 1150</span>  lp-><a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html#abfc30f91ab75c6f4552003f777672e74">CleanUp</a>();</div>
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<div class="line"><a name="l01151"></a><span class="lineno"> 1151</span> }</div>
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<div class="line"><a name="l01152"></a><span class="lineno"> 1152</span>  </div>
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<div class="line"><a name="l01153"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#ab7cca71116da1e5640ad896f2bf46028"> 1153</a></span> <span class="keywordtype">int</span> <a class="code" href="namespaceoperations__research_1_1sat.html#ab7cca71116da1e5640ad896f2bf46028">FixVariablesFromSat</a>(<span class="keyword">const</span> <a class="code" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>& solver, <a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html">glop::LinearProgram</a>* lp) {</div>
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<div class="line"><a name="l01154"></a><span class="lineno"> 1154</span>  <span class="keywordtype">int</span> num_fixed_variables = 0;</div>
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<div class="line"><a name="l01155"></a><span class="lineno"> 1155</span>  <span class="keyword">const</span> <a class="code" href="classoperations__research_1_1sat_1_1_trail.html">Trail</a>& trail = solver.<a class="code" href="classoperations__research_1_1sat_1_1_sat_solver.html#a01fd4c9f5286534866c6c5ee2c160fe9">LiteralTrail</a>();</div>
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<div class="line"><a name="l01156"></a><span class="lineno"> 1156</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < trail.<a class="code" href="classoperations__research_1_1sat_1_1_trail.html#a8ef12397d1682615bc3108c397734179">Index</a>(); ++i) {</div>
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<div class="line"><a name="l01157"></a><span class="lineno"> 1157</span>  <span class="keyword">const</span> BooleanVariable <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = trail[i].Variable();</div>
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<div class="line"><a name="l01158"></a><span class="lineno"> 1158</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> = trail[i].IsPositive() ? 1.0 : 0.0;</div>
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<div class="line"><a name="l01159"></a><span class="lineno"> 1159</span>  <span class="keywordflow">if</span> (trail.<a class="code" href="classoperations__research_1_1sat_1_1_trail.html#a29be1a6b9ba823a6fffb927609d18599">Info</a>(<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>).<a class="code" href="structoperations__research_1_1sat_1_1_assignment_info.html#afefd28242df91e46e762af1f7eaf623f">level</a> == 0) {</div>
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<div class="line"><a name="l01160"></a><span class="lineno"> 1160</span>  ++num_fixed_variables;</div>
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<div class="line"><a name="l01161"></a><span class="lineno"> 1161</span>  lp-><a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093">SetVariableBounds</a>(ColIndex(<a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>.value()), <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>, <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>);</div>
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|
<div class="line"><a name="l01162"></a><span class="lineno"> 1162</span>  }</div>
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|
<div class="line"><a name="l01163"></a><span class="lineno"> 1163</span>  }</div>
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|
<div class="line"><a name="l01164"></a><span class="lineno"> 1164</span>  <span class="keywordflow">return</span> num_fixed_variables;</div>
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|
<div class="line"><a name="l01165"></a><span class="lineno"> 1165</span> }</div>
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|
<div class="line"><a name="l01166"></a><span class="lineno"> 1166</span>  </div>
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<div class="line"><a name="l01167"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a0ce1f2f17b7ce984fbfc526d6c04f337"> 1167</a></span> <span class="keywordtype">bool</span> <a class="code" href="namespaceoperations__research_1_1sat.html#a0ce1f2f17b7ce984fbfc526d6c04f337">SolveLpAndUseSolutionForSatAssignmentPreference</a>(</div>
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|
<div class="line"><a name="l01168"></a><span class="lineno"> 1168</span>  <span class="keyword">const</span> <a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html">glop::LinearProgram</a>& lp, <a class="code" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* sat_solver,</div>
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|
<div class="line"><a name="l01169"></a><span class="lineno"> 1169</span>  <span class="keywordtype">double</span> max_time_in_seconds) {</div>
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|
<div class="line"><a name="l01170"></a><span class="lineno"> 1170</span>  <a class="code" href="classoperations__research_1_1glop_1_1_l_p_solver.html">glop::LPSolver</a> solver;</div>
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|
<div class="line"><a name="l01171"></a><span class="lineno"> 1171</span>  glop::GlopParameters glop_parameters;</div>
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|
<div class="line"><a name="l01172"></a><span class="lineno"> 1172</span>  glop_parameters.set_max_time_in_seconds(max_time_in_seconds);</div>
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|
<div class="line"><a name="l01173"></a><span class="lineno"> 1173</span>  solver.<a class="code" 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 name="l01174"></a><span class="lineno"> 1174</span>  <span class="keyword">const</span> <a class="code" href="namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9">glop::ProblemStatus</a>& status = solver.<a class="code" href="classoperations__research_1_1glop_1_1_l_p_solver.html#ad0677fd7b636de2bffe3cffca65dcd20">Solve</a>(lp);</div>
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|
<div class="line"><a name="l01175"></a><span class="lineno"> 1175</span>  <span class="keywordflow">if</span> (status != <a class="code" href="namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9af00c8dbdd6e1f11bdae06be94277d293">glop::ProblemStatus::OPTIMAL</a> &&</div>
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|
<div class="line"><a name="l01176"></a><span class="lineno"> 1176</span>  status != <a class="code" href="namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a0beacd9ca195de65e685252f1b46b954">glop::ProblemStatus::IMPRECISE</a> &&</div>
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|
<div class="line"><a name="l01177"></a><span class="lineno"> 1177</span>  status != <a class="code" href="namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a2dcc8f5d91cb2aa2065b8305bf2d5cbd">glop::ProblemStatus::PRIMAL_FEASIBLE</a>) {</div>
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|
<div class="line"><a name="l01178"></a><span class="lineno"> 1178</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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|
<div class="line"><a name="l01179"></a><span class="lineno"> 1179</span>  }</div>
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|
<div class="line"><a name="l01180"></a><span class="lineno"> 1180</span>  <span class="keywordflow">for</span> (ColIndex <a class="code" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>(0); <a class="code" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a> < lp.<a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871">num_variables</a>(); ++<a class="code" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>) {</div>
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|
<div class="line"><a name="l01181"></a><span class="lineno"> 1181</span>  <span class="keyword">const</span> <a class="code" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a>& <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> = solver.<a class="code" href="classoperations__research_1_1glop_1_1_l_p_solver.html#a79f4b1dff56ea4e839e0d380019c4869">variable_values</a>()[<a class="code" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>];</div>
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|
<div class="line"><a name="l01182"></a><span class="lineno"> 1182</span>  sat_solver-><a class="code" href="classoperations__research_1_1sat_1_1_sat_solver.html#a955786dcbe82b7c4dc9924a5473ac1e8">SetAssignmentPreference</a>(</div>
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|
<div class="line"><a name="l01183"></a><span class="lineno"> 1183</span>  <a class="code" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a>(BooleanVariable(<a class="code" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>.value()), round(<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>) == 1),</div>
|
|
<div class="line"><a name="l01184"></a><span class="lineno"> 1184</span>  1 - std::abs(<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> - round(<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>)));</div>
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|
<div class="line"><a name="l01185"></a><span class="lineno"> 1185</span>  }</div>
|
|
<div class="line"><a name="l01186"></a><span class="lineno"> 1186</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l01187"></a><span class="lineno"> 1187</span> }</div>
|
|
<div class="line"><a name="l01188"></a><span class="lineno"> 1188</span>  </div>
|
|
<div class="line"><a name="l01189"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#aa46871f0150f3db9f9fdcbd1049aadaa"> 1189</a></span> <span class="keywordtype">bool</span> <a class="code" href="namespaceoperations__research_1_1sat.html#aa46871f0150f3db9f9fdcbd1049aadaa">SolveLpAndUseIntegerVariableToStartLNS</a>(<span class="keyword">const</span> <a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html">glop::LinearProgram</a>& lp,</div>
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|
<div class="line"><a name="l01190"></a><span class="lineno"> 1190</span>  LinearBooleanProblem* problem) {</div>
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|
<div class="line"><a name="l01191"></a><span class="lineno"> 1191</span>  <a class="code" href="classoperations__research_1_1glop_1_1_l_p_solver.html">glop::LPSolver</a> solver;</div>
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|
<div class="line"><a name="l01192"></a><span class="lineno"> 1192</span>  <span class="keyword">const</span> <a class="code" href="namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9">glop::ProblemStatus</a>& status = solver.<a class="code" href="classoperations__research_1_1glop_1_1_l_p_solver.html#ad0677fd7b636de2bffe3cffca65dcd20">Solve</a>(lp);</div>
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|
<div class="line"><a name="l01193"></a><span class="lineno"> 1193</span>  <span class="keywordflow">if</span> (status != <a class="code" href="namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9af00c8dbdd6e1f11bdae06be94277d293">glop::ProblemStatus::OPTIMAL</a> &&</div>
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|
<div class="line"><a name="l01194"></a><span class="lineno"> 1194</span>  status != <a class="code" href="namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a2dcc8f5d91cb2aa2065b8305bf2d5cbd">glop::ProblemStatus::PRIMAL_FEASIBLE</a>)</div>
|
|
<div class="line"><a name="l01195"></a><span class="lineno"> 1195</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l01196"></a><span class="lineno"> 1196</span>  <span class="keywordtype">int</span> num_variable_fixed = 0;</div>
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|
<div class="line"><a name="l01197"></a><span class="lineno"> 1197</span>  <span class="keywordflow">for</span> (ColIndex <a class="code" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>(0); <a class="code" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a> < lp.<a class="code" href="classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871">num_variables</a>(); ++<a class="code" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>) {</div>
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|
<div class="line"><a name="l01198"></a><span class="lineno"> 1198</span>  <span class="keyword">const</span> <a class="code" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> tolerance = 1e-5;</div>
|
|
<div class="line"><a name="l01199"></a><span class="lineno"> 1199</span>  <span class="keyword">const</span> <a class="code" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a>& <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> = solver.<a class="code" href="classoperations__research_1_1glop_1_1_l_p_solver.html#a79f4b1dff56ea4e839e0d380019c4869">variable_values</a>()[<a class="code" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>];</div>
|
|
<div class="line"><a name="l01200"></a><span class="lineno"> 1200</span>  <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> > 1 - tolerance) {</div>
|
|
<div class="line"><a name="l01201"></a><span class="lineno"> 1201</span>  ++num_variable_fixed;</div>
|
|
<div class="line"><a name="l01202"></a><span class="lineno"> 1202</span>  LinearBooleanConstraint* constraint = problem->add_constraints();</div>
|
|
<div class="line"><a name="l01203"></a><span class="lineno"> 1203</span>  constraint->set_lower_bound(1);</div>
|
|
<div class="line"><a name="l01204"></a><span class="lineno"> 1204</span>  constraint->set_upper_bound(1);</div>
|
|
<div class="line"><a name="l01205"></a><span class="lineno"> 1205</span>  constraint->add_coefficients(1);</div>
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|
<div class="line"><a name="l01206"></a><span class="lineno"> 1206</span>  constraint->add_literals(<a class="code" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>.value() + 1);</div>
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<div class="line"><a name="l01207"></a><span class="lineno"> 1207</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a> < tolerance) {</div>
|
|
<div class="line"><a name="l01208"></a><span class="lineno"> 1208</span>  ++num_variable_fixed;</div>
|
|
<div class="line"><a name="l01209"></a><span class="lineno"> 1209</span>  LinearBooleanConstraint* constraint = problem->add_constraints();</div>
|
|
<div class="line"><a name="l01210"></a><span class="lineno"> 1210</span>  constraint->set_lower_bound(0);</div>
|
|
<div class="line"><a name="l01211"></a><span class="lineno"> 1211</span>  constraint->set_upper_bound(0);</div>
|
|
<div class="line"><a name="l01212"></a><span class="lineno"> 1212</span>  constraint->add_coefficients(1);</div>
|
|
<div class="line"><a name="l01213"></a><span class="lineno"> 1213</span>  constraint->add_literals(<a class="code" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>.value() + 1);</div>
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|
<div class="line"><a name="l01214"></a><span class="lineno"> 1214</span>  }</div>
|
|
<div class="line"><a name="l01215"></a><span class="lineno"> 1215</span>  }</div>
|
|
<div class="line"><a name="l01216"></a><span class="lineno"> 1216</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>) << <span class="stringliteral">"LNS with "</span> << num_variable_fixed << <span class="stringliteral">" fixed variables."</span>;</div>
|
|
<div class="line"><a name="l01217"></a><span class="lineno"> 1217</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l01218"></a><span class="lineno"> 1218</span> }</div>
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|
<div class="line"><a name="l01219"></a><span class="lineno"> 1219</span>  </div>
|
|
<div class="line"><a name="l01220"></a><span class="lineno"> 1220</span> } <span class="comment">// namespace sat</span></div>
|
|
<div class="line"><a name="l01221"></a><span class="lineno"> 1221</span> } <span class="comment">// namespace operations_research</span></div>
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<div class="ttc" id="aalldiff__cst_8cc_html_a021e695f54a13bd809c34b2f4ca87c37"><div class="ttname"><a href="alldiff__cst_8cc.html#a021e695f54a13bd809c34b2f4ca87c37">min</a></div><div class="ttdeci">int64 min</div><div class="ttdef"><b>Definition:</b> <a href="alldiff__cst_8cc_source.html#l00138">alldiff_cst.cc:138</a></div></div>
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<div class="ttc" id="aalldiff__cst_8cc_html_a9d0c202d5fdd62f4fa2c613339ff168a"><div class="ttname"><a href="alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a">max</a></div><div class="ttdeci">int64 max</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#l00479">base/logging.h:479</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a3e1cfef60e774a81f30eaddf26a3a274"><div class="ttname"><a href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a></div><div class="ttdeci">#define CHECK(condition)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00495">base/logging.h:495</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a46e69120fbd3b36e6960e096d23b66f0"><div class="ttname"><a href="base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0">DCHECK_NE</a></div><div class="ttdeci">#define DCHECK_NE(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00886">base/logging.h:886</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#l00697">base/logging.h:697</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#l00702">base/logging.h:702</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#l00698">base/logging.h:698</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#l00420">base/logging.h:420</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#l00884">base/logging.h:884</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#l00978">base/logging.h:978</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_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_a79f4b1dff56ea4e839e0d380019c4869"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_l_p_solver.html#a79f4b1dff56ea4e839e0d380019c4869">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#l00121">lp_solver.cc:121</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#l00113">lp_solver.cc:113</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#l00054">lp_data.h:54</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#l00248">lp_data.cc:248</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#l00244">lp_data.cc:244</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#l00330">lp_data.cc:330</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#l00316">lp_data.cc:316</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#l00231">lp_data.cc:231</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#l00308">lp_data.cc:308</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#l00161">lp_data.cc:161</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#l00235">lp_data.cc:235</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#l00133">lp_data.cc:133</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#l00325">lp_data.cc:325</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#l00346">lp_data.cc:346</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#l00204">lp_data.h:204</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#l00190">lp_data.cc:190</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#l00342">lp_data.cc:342</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#l00064">sat_base.h:64</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#l00057">sat_solver.h:57</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a01fd4c9f5286534866c6c5ee2c160fe9"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a01fd4c9f5286534866c6c5ee2c160fe9">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#l00361">sat_solver.h:361</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#l00150">sat_solver.h:150</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#l00233">sat_base.h:233</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_trail_html_a29be1a6b9ba823a6fffb927609d18599"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_trail.html#a29be1a6b9ba823a6fffb927609d18599">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#l00381">sat_base.h:381</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#l00378">sat_base.h:378</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#l00808">default_search.cc:808</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#l00042">demon_profiler.cc:42</a></div></div>
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<div class="ttc" id="ademon__profiler_8cc_html_a21edc7ca4cc5802c8779d68556bc09cf"><div class="ttname"><a href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a></div><div class="ttdeci">int64 value</div><div class="ttdef"><b>Definition:</b> <a href="demon__profiler_8cc_source.html#l00043">demon_profiler.cc:43</a></div></div>
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<div class="ttc" id="aexpr__array_8cc_html_a472a99923cbe11ae7b5a5d157d9ad465"><div class="ttname"><a href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a></div><div class="ttdeci">IntVar * var</div><div class="ttdef"><b>Definition:</b> <a href="expr__array_8cc_source.html#l01858">expr_array.cc:1858</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="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="aintegral__types_8h_html_a74ea76ea27f48fb1b6e148e1577b3719"><div class="ttname"><a href="integral__types_8h.html#a74ea76ea27f48fb1b6e148e1577b3719">kint64max</a></div><div class="ttdeci">static const int64 kint64max</div><div class="ttdef"><b>Definition:</b> <a href="integral__types_8h_source.html#l00053">integral_types.h:53</a></div></div>
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<div class="ttc" id="aintegral__types_8h_html_a7cde0074dfd288f2d70c0e035dacb28a"><div class="ttname"><a href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a></div><div class="ttdeci">int64_t int64</div><div class="ttdef"><b>Definition:</b> <a href="integral__types_8h_source.html#l00034">integral_types.h:34</a></div></div>
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<div class="ttc" id="aintegral__types_8h_html_af458164b470cbba416d5ed579e00ff60"><div class="ttname"><a href="integral__types_8h.html#af458164b470cbba416d5ed579e00ff60">kint64min</a></div><div class="ttdeci">static const int64 kint64min</div><div class="ttdef"><b>Definition:</b> <a href="integral__types_8h_source.html#l00052">integral_types.h:52</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#l00176">markowitz.cc:176</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#l00077">lp_types.h:77</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9">operations_research::glop::ProblemStatus</a></div><div class="ttdeci">ProblemStatus</div><div class="ttdef"><b>Definition:</b> <a href="lp__types_8h_source.html#l00101">lp_types.h:101</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9a0beacd9ca195de65e685252f1b46b954"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a0beacd9ca195de65e685252f1b46b954">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_ae8a885303349cb7807c7c87b405bc0c9a2dcc8f5d91cb2aa2065b8305bf2d5cbd"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a2dcc8f5d91cb2aa2065b8305bf2d5cbd">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_ae8a885303349cb7807c7c87b405bc0c9af00c8dbdd6e1f11bdae06be94277d293"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9af00c8dbdd6e1f11bdae06be94277d293">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#l00083">lp_types.h:83</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#l00090">integer.h:90</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#l01167">sat/lp_utils.cc:1167</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a0ff539f8974998682c8a976ec9a83166"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a0ff539f8974998682c8a976ec9a83166">operations_research::sat::RemoveNearZeroTerms</a></div><div class="ttdeci">void RemoveNearZeroTerms(const SatParameters &params, MPModelProto *mp_model)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00181">sat/lp_utils.cc:181</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#l00081">integer.h:81</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#l01089">sat/lp_utils.cc:1089</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a5d3559f28aa3f4859177d4c13950cf1a"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a5d3559f28aa3f4859177d4c13950cf1a">operations_research::sat::DetectImpliedIntegers</a></div><div class="ttdeci">std::vector< double > DetectImpliedIntegers(bool log_info, MPModelProto *mp_model)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00234">sat/lp_utils.cc:234</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#l00914">sat/lp_utils.cc:914</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#l01189">sat/lp_utils.cc:1189</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#l00209">boolean_problem.cc:209</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#l01153">sat/lp_utils.cc:1153</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#l00099">sat/lp_utils.cc:99</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_adead4997e96ccdef87190f43c5de938f"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#adead4997e96ccdef87190f43c5de938f">operations_research::sat::ConvertMPModelProtoToCpModelProto</a></div><div class="ttdeci">bool ConvertMPModelProtoToCpModelProto(const SatParameters &params, const MPModelProto &mp_model, CpModelProto *cp_model)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2lp__utils_8cc_source.html#l00642">sat/lp_utils.cc:642</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#l00032">cp_model_utils.h:32</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#l00118">sat/lp_utils.cc:118</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">The vehicle routing library lets one model and solve generic vehicle routing problems ranging from th...</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_a4256c1ce10497f58f5c8b3d2abc57525"><div class="ttname"><a href="namespaceoperations__research.html#a4256c1ce10497f58f5c8b3d2abc57525">operations_research::ComputeGcdOfRoundedDoubles</a></div><div class="ttdeci">int64 ComputeGcdOfRoundedDoubles(const std::vector< double > &x, double scaling_factor)</div><div class="ttdef"><b>Definition:</b> <a href="fp__utils_8cc_source.html#l00189">fp_utils.cc:189</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#l00159">fp_utils.cc:159</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html_afd62b70eb0f46a86016aeda8edea45fa"><div class="ttname"><a href="namespaceoperations__research.html#afd62b70eb0f46a86016aeda8edea45fa">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 max_absolute_sum)</div><div class="ttdef"><b>Definition:</b> <a href="fp__utils_8cc_source.html#l00168">fp_utils.cc:168</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#l00084">optimization.cc:84</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__search_8cc_html_a204f9b990226e8288e1aaecbb496cbf8"><div class="ttname"><a href="routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8">bound</a></div><div class="ttdeci">int64 bound</div><div class="ttdef"><b>Definition:</b> <a href="routing__search_8cc_source.html#l00972">routing_search.cc:972</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_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_a6a1f817dc422c6adab9def33880bcf4a"><div class="ttname"><a href="sat_2lp__utils_8cc.html#a6a1f817dc422c6adab9def33880bcf4a">scaling_target</a></div><div class="ttdeci">int64 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_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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<div class="ttc" id="asat__base_8h_html"><div class="ttname"><a href="sat__base_8h.html">sat_base.h</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_assignment_info_html_afefd28242df91e46e762af1f7eaf623f"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_assignment_info.html#afefd28242df91e46e762af1f7eaf623f">operations_research::sat::AssignmentInfo::level</a></div><div class="ttdeci">uint32 level</div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00199">sat_base.h:199</a></div></div>
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<div class="ttc" id="avlog__is__on_8h_html_a956152cad330225654d128f35c00efce"><div class="ttname"><a href="vlog__is__on_8h.html#a956152cad330225654d128f35c00efce">VLOG_IS_ON</a></div><div class="ttdeci">#define VLOG_IS_ON(verboselevel)</div><div class="ttdef"><b>Definition:</b> <a href="vlog__is__on_8h_source.html#l00041">vlog_is_on.h:41</a></div></div>
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