2020-09-02 09:42:51 +02:00
<!-- HTML header for doxygen 1.8.18 -->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
< html xmlns = "http://www.w3.org/1999/xhtml" >
< head >
< meta http-equiv = "Content-Type" content = "text/xhtml;charset=UTF-8" / >
< meta http-equiv = "X-UA-Compatible" content = "IE=9" / >
2022-01-17 21:42:14 +01:00
< meta name = "generator" content = "Doxygen 1.9.3" / >
2020-09-02 09:42:51 +02:00
< meta name = "viewport" content = "width=device-width, initial-scale=1" / >
< title > OR-Tools: precedences.cc Source File< / title >
< link href = "tabs.css" rel = "stylesheet" type = "text/css" / >
< script type = "text/javascript" src = "jquery.js" > < / script >
< script type = "text/javascript" src = "dynsections.js" > < / script >
< link href = "navtree.css" rel = "stylesheet" type = "text/css" / >
< script type = "text/javascript" src = "resize.js" > < / script >
< script type = "text/javascript" src = "navtreedata.js" > < / script >
< script type = "text/javascript" src = "navtree.js" > < / script >
< link href = "search/search.css" rel = "stylesheet" type = "text/css" / >
< script type = "text/javascript" src = "search/searchdata.js" > < / script >
< script type = "text/javascript" src = "search/search.js" > < / script >
< link href = "doxygen.css" rel = "stylesheet" type = "text/css" / >
< link href = "styleSheet.tmp.css" rel = "stylesheet" type = "text/css" / >
< / head >
< body >
< div id = "top" > <!-- do not remove this div, it is closed by doxygen! -->
< div id = "titlearea" >
< table cellspacing = "0" cellpadding = "0" >
< tbody >
< tr style = "height: 56px;" >
< td id = "projectlogo" > < img alt = "Logo" src = "orLogo.png" / > < / td >
< td id = "projectalign" style = "padding-left: 0.5em;" >
< div id = "projectname" > OR-Tools
2022-03-04 00:11:33 +01:00
  < span id = "projectnumber" > 9.3< / span >
2020-09-02 09:42:51 +02:00
< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
<!-- end header part -->
2022-01-17 21:42:14 +01:00
<!-- Generated by Doxygen 1.9.3 -->
2020-09-02 09:42:51 +02:00
< script type = "text/javascript" >
2022-01-17 21:42:14 +01:00
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699& dn=expat.txt MIT */
var searchBox = new SearchBox("searchBox", "search",'Search','.html');
2020-09-02 09:42:51 +02:00
/* @license-end */
< / script >
< script type = "text/javascript" src = "menudata.js" > < / script >
< script type = "text/javascript" src = "menu.js" > < / script >
< script type = "text/javascript" >
2022-01-17 21:42:14 +01:00
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699& dn=expat.txt MIT */
2020-09-02 09:42:51 +02:00
$(function() {
initMenu('',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
});
2022-01-17 21:42:14 +01:00
/* @license-end */
< / script >
2020-09-02 09:42:51 +02:00
< div id = "main-nav" > < / div >
< / div > <!-- top -->
< div id = "side-nav" class = "ui-resizable side-nav-resizable" >
< div id = "nav-tree" >
< div id = "nav-tree-contents" >
< div id = "nav-sync" class = "sync" > < / div >
< / div >
< / div >
< div id = "splitbar" style = "-moz-user-select:none;"
class="ui-resizable-handle">
< / div >
< / div >
< script type = "text/javascript" >
2022-01-17 21:42:14 +01:00
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699& dn=expat.txt MIT */
$(document).ready(function(){initNavTree('precedences_8cc_source.html',''); initResizable(); });
2020-09-02 09:42:51 +02:00
/* @license-end */
< / script >
< div id = "doc-content" >
<!-- window showing the filter options -->
< div id = "MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
< / div >
<!-- iframe showing the search results (closed by default) -->
< div id = "MSearchResultsWindow" >
< iframe src = "javascript:void(0)" frameborder = "0"
name="MSearchResults" id="MSearchResults">
< / iframe >
< / div >
< div class = "header" >
2022-01-17 21:42:14 +01:00
< div class = "headertitle" > < div class = "title" > precedences.cc< / div > < / div >
2020-09-02 09:42:51 +02:00
< / div > <!-- header -->
< div class = "contents" >
2022-01-17 21:42:14 +01:00
< a href = "precedences_8cc.html" > Go to the documentation of this file.< / a > < div class = "fragment" > < div class = "line" > < a id = "l00001" name = "l00001" > < / a > < span class = "lineno" > 1< / span > < span class = "comment" > // Copyright 2010-2021 Google LLC< / span > < / div >
< div class = "line" > < a id = "l00002" name = "l00002" > < / a > < span class = "lineno" > 2< / span > < span class = "comment" > // Licensed under the Apache License, Version 2.0 (the " License" );< / span > < / div >
< div class = "line" > < a id = "l00003" name = "l00003" > < / a > < span class = "lineno" > 3< / span > < span class = "comment" > // you may not use this file except in compliance with the License.< / span > < / div >
< div class = "line" > < a id = "l00004" name = "l00004" > < / a > < span class = "lineno" > 4< / span > < span class = "comment" > // You may obtain a copy of the License at< / span > < / div >
< div class = "line" > < a id = "l00005" name = "l00005" > < / a > < span class = "lineno" > 5< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00006" name = "l00006" > < / a > < span class = "lineno" > 6< / span > < span class = "comment" > // http://www.apache.org/licenses/LICENSE-2.0< / span > < / div >
< div class = "line" > < a id = "l00007" name = "l00007" > < / a > < span class = "lineno" > 7< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00008" name = "l00008" > < / a > < span class = "lineno" > 8< / span > < span class = "comment" > // Unless required by applicable law or agreed to in writing, software< / span > < / div >
< div class = "line" > < a id = "l00009" name = "l00009" > < / a > < span class = "lineno" > 9< / span > < span class = "comment" > // distributed under the License is distributed on an " AS IS" BASIS,< / span > < / div >
< div class = "line" > < a id = "l00010" name = "l00010" > < / a > < span class = "lineno" > 10< / span > < span class = "comment" > // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.< / span > < / div >
< div class = "line" > < a id = "l00011" name = "l00011" > < / a > < span class = "lineno" > 11< / span > < span class = "comment" > // See the License for the specific language governing permissions and< / span > < / div >
< div class = "line" > < a id = "l00012" name = "l00012" > < / a > < span class = "lineno" > 12< / span > < span class = "comment" > // limitations under the License.< / span > < / div >
< div class = "line" > < a id = "l00013" name = "l00013" > < / a > < span class = "lineno" > 13< / span > < / div >
< div class = "line" > < a id = "l00014" name = "l00014" > < / a > < span class = "lineno" > 14< / span > < span class = "preprocessor" > #include " < a class = "code" href = "precedences_8h.html" > ortools/sat/precedences.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00015" name = "l00015" > < / a > < span class = "lineno" > 15< / span > < / div >
< div class = "line" > < a id = "l00016" name = "l00016" > < / a > < span class = "lineno" > 16< / span > < span class = "preprocessor" > #include < algorithm> < / span > < / div >
2022-03-04 00:11:33 +01:00
< div class = "line" > < a id = "l00017" name = "l00017" > < / a > < span class = "lineno" > 17< / span > < span class = "preprocessor" > #include < deque> < / span > < / div >
< div class = "line" > < a id = "l00018" name = "l00018" > < / a > < span class = "lineno" > 18< / span > < span class = "preprocessor" > #include < vector> < / span > < / div >
< div class = "line" > < a id = "l00019" name = "l00019" > < / a > < span class = "lineno" > 19< / span > < / div >
< div class = "line" > < a id = "l00020" name = "l00020" > < / a > < span class = "lineno" > 20< / span > < span class = "preprocessor" > #include " absl/container/btree_set.h" < / span > < / div >
< div class = "line" > < a id = "l00021" name = "l00021" > < / a > < span class = "lineno" > 21< / span > < span class = "preprocessor" > #include " absl/container/inlined_vector.h" < / span > < / div >
< div class = "line" > < a id = "l00022" name = "l00022" > < / a > < span class = "lineno" > 22< / span > < span class = "preprocessor" > #include " absl/types/span.h" < / span > < / div >
< div class = "line" > < a id = "l00023" name = "l00023" > < / a > < span class = "lineno" > 23< / span > < span class = "preprocessor" > #include " < a class = "code" href = "cleanup_8h.html" > ortools/base/cleanup.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00024" name = "l00024" > < / a > < span class = "lineno" > 24< / span > < span class = "preprocessor" > #include " < a class = "code" href = "base_2logging_8h.html" > ortools/base/logging.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00025" name = "l00025" > < / a > < span class = "lineno" > 25< / span > < span class = "preprocessor" > #include " < a class = "code" href = "map__util_8h.html" > ortools/base/map_util.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00026" name = "l00026" > < / a > < span class = "lineno" > 26< / span > < span class = "preprocessor" > #include " < a class = "code" href = "stl__util_8h.html" > ortools/base/stl_util.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00027" name = "l00027" > < / a > < span class = "lineno" > 27< / span > < span class = "preprocessor" > #include " < a class = "code" href = "strong__vector_8h.html" > ortools/base/strong_vector.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00028" name = "l00028" > < / a > < span class = "lineno" > 28< / span > < span class = "preprocessor" > #include " < a class = "code" href = "clause_8h.html" > ortools/sat/clause.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00029" name = "l00029" > < / a > < span class = "lineno" > 29< / span > < span class = "preprocessor" > #include " < a class = "code" href = "cp__constraints_8h.html" > ortools/sat/cp_constraints.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00030" name = "l00030" > < / a > < span class = "lineno" > 30< / span > < span class = "preprocessor" > #include " < a class = "code" href = "integer_8h.html" > ortools/sat/integer.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00031" name = "l00031" > < / a > < span class = "lineno" > 31< / span > < span class = "preprocessor" > #include " < a class = "code" href = "sat_2model_8h.html" > ortools/sat/model.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00032" name = "l00032" > < / a > < span class = "lineno" > 32< / span > < span class = "preprocessor" > #include " < a class = "code" href = "sat__base_8h.html" > ortools/sat/sat_base.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00033" name = "l00033" > < / a > < span class = "lineno" > 33< / span > < span class = "preprocessor" > #include " < a class = "code" href = "sat__solver_8h.html" > ortools/sat/sat_solver.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00034" name = "l00034" > < / a > < span class = "lineno" > 34< / span > < span class = "preprocessor" > #include " < a class = "code" href = "bitset_8h.html" > ortools/util/bitset.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00035" name = "l00035" > < / a > < span class = "lineno" > 35< / span > < span class = "preprocessor" > #include " < a class = "code" href = "strong__integers_8h.html" > ortools/util/strong_integers.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00036" name = "l00036" > < / a > < span class = "lineno" > 36< / span > < span class = "preprocessor" > #include " < a class = "code" href = "time__limit_8h.html" > ortools/util/time_limit.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00037" name = "l00037" > < / a > < span class = "lineno" > 37< / span > < / div >
< div class = "line" > < a id = "l00038" name = "l00038" > < / a > < span class = "lineno" > 38< / span > < span class = "keyword" > namespace < / span > < a class = "code hl_namespace" href = "namespaceoperations__research.html" > operations_research< / a > {< / div >
< div class = "line" > < a id = "l00039" name = "l00039" > < / a > < span class = "lineno" > 39< / span > < span class = "keyword" > namespace < / span > sat {< / div >
2022-01-17 21:42:14 +01:00
< div class = "line" > < a id = "l00040" name = "l00040" > < / a > < span class = "lineno" > 40< / span > < / div >
2022-03-04 00:11:33 +01:00
< div class = "line" > < a id = "l00041" name = "l00041" > < / a > < span class = "lineno" > 41< / span > < span class = "keyword" > namespace < / span > {< / div >
2022-01-17 21:42:14 +01:00
< div class = "line" > < a id = "l00042" name = "l00042" > < / a > < span class = "lineno" > 42< / span > < / div >
2022-03-04 00:11:33 +01:00
< div class = "line" > < a id = "l00043" name = "l00043" > < / a > < span class = "lineno" > 43< / span > < span class = "keywordtype" > void< / span > AppendLowerBoundReasonIfValid(IntegerVariable < a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ,< / div >
< div class = "line" > < a id = "l00044" name = "l00044" > < / a > < span class = "lineno" > 44< / span > < span class = "keyword" > const< / span > IntegerTrail& i_trail,< / div >
< div class = "line" > < a id = "l00045" name = "l00045" > < / a > < span class = "lineno" > 45< / span > std::vector< IntegerLiteral> * reason) {< / div >
< div class = "line" > < a id = "l00046" name = "l00046" > < / a > < span class = "lineno" > 46< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > != < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > ) {< / div >
< div class = "line" > < a id = "l00047" name = "l00047" > < / a > < span class = "lineno" > 47< / span > reason-> push_back(i_trail.LowerBoundAsLiteral(< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ));< / div >
< div class = "line" > < a id = "l00048" name = "l00048" > < / a > < span class = "lineno" > 48< / span > }< / div >
< div class = "line" > < a id = "l00049" name = "l00049" > < / a > < span class = "lineno" > 49< / span > }< / div >
< div class = "line" > < a id = "l00050" name = "l00050" > < / a > < span class = "lineno" > 50< / span > < / div >
< div class = "line" > < a id = "l00051" name = "l00051" > < / a > < span class = "lineno" > 51< / span > } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a id = "l00052" name = "l00052" > < / a > < span class = "lineno" > 52< / span > < / div >
< div class = "line" > < a id = "l00053" name = "l00053" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#a1f591be5334541874ba049873235f0a9" > 53< / a > < / span > < span class = "keywordtype" > bool< / span > < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#ac1fe9b1f2b978c4283e42f12e586eb1e" > PrecedencesPropagator::Propagate< / a > (< a class = "code hl_class" href = "classoperations__research_1_1sat_1_1_trail.html" > Trail< / a > * trail) { < span class = "keywordflow" > return< / span > < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#ac1fe9b1f2b978c4283e42f12e586eb1e" > Propagate< / a > (); }< / div >
< div class = "line" > < a id = "l00054" name = "l00054" > < / a > < span class = "lineno" > 54< / span > < / div >
< div class = "line" > < a id = "l00055" name = "l00055" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#ac1fe9b1f2b978c4283e42f12e586eb1e" > 55< / a > < / span > < span class = "keywordtype" > bool< / span > < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#ac1fe9b1f2b978c4283e42f12e586eb1e" > PrecedencesPropagator::Propagate< / a > () {< / div >
< div class = "line" > < a id = "l00056" name = "l00056" > < / a > < span class = "lineno" > 56< / span > < span class = "keywordflow" > while< / span > (propagation_trail_index_ < trail_-> < a class = "code hl_typedef" href = "namespaceoperations__research_1_1glop.html#ac89c7b45754e9a6bdabc08bea586fc4e" > Index< / a > ()) {< / div >
< div class = "line" > < a id = "l00057" name = "l00057" > < / a > < span class = "lineno" > 57< / span > < span class = "keyword" > const< / span > < a class = "code hl_class" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > < a class = "code hl_variable" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > = (*trail_)[< a class = "code hl_variable" href = "classoperations__research_1_1sat_1_1_sat_propagator.html#a06e2c6f3432a89d0160b831d48afd8b7" > propagation_trail_index_< / a > ++];< / div >
< div class = "line" > < a id = "l00058" name = "l00058" > < / a > < span class = "lineno" > 58< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > .Index() > = literal_to_new_impacted_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ()) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00059" name = "l00059" > < / a > < span class = "lineno" > 59< / span > < / div >
< div class = "line" > < a id = "l00060" name = "l00060" > < / a > < span class = "lineno" > 60< / span > < span class = "comment" > // IMPORTANT: Because of the way Untrail() work, we need to add all the< / span > < / div >
< div class = "line" > < a id = "l00061" name = "l00061" > < / a > < span class = "lineno" > 61< / span > < span class = "comment" > // potential arcs before we can abort. It is why we iterate twice here.< / span > < / div >
< div class = "line" > < a id = "l00062" name = "l00062" > < / a > < span class = "lineno" > 62< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > arc_index :< / div >
< div class = "line" > < a id = "l00063" name = "l00063" > < / a > < span class = "lineno" > 63< / span > literal_to_new_impacted_arcs_[< a class = "code hl_variable" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > .Index()]) {< / div >
< div class = "line" > < a id = "l00064" name = "l00064" > < / a > < span class = "lineno" > 64< / span > < span class = "keywordflow" > if< / span > (--arc_counts_[arc_index] == 0) {< / div >
< div class = "line" > < a id = "l00065" name = "l00065" > < / a > < span class = "lineno" > 65< / span > < span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > = arcs_[arc_index];< / div >
< div class = "line" > < a id = "l00066" name = "l00066" > < / a > < span class = "lineno" > 66< / span > impacted_arcs_[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .tail_var].< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (arc_index);< / div >
< div class = "line" > < a id = "l00067" name = "l00067" > < / a > < span class = "lineno" > 67< / span > }< / div >
< div class = "line" > < a id = "l00068" name = "l00068" > < / a > < span class = "lineno" > 68< / span > }< / div >
< div class = "line" > < a id = "l00069" name = "l00069" > < / a > < span class = "lineno" > 69< / span > < / div >
< div class = "line" > < a id = "l00070" name = "l00070" > < / a > < span class = "lineno" > 70< / span > < span class = "comment" > // Iterate again to check for a propagation and indirectly update< / span > < / div >
< div class = "line" > < a id = "l00071" name = "l00071" > < / a > < span class = "lineno" > 71< / span > < span class = "comment" > // modified_vars_.< / span > < / div >
< div class = "line" > < a id = "l00072" name = "l00072" > < / a > < span class = "lineno" > 72< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > arc_index :< / div >
< div class = "line" > < a id = "l00073" name = "l00073" > < / a > < span class = "lineno" > 73< / span > literal_to_new_impacted_arcs_[< a class = "code hl_variable" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > .Index()]) {< / div >
< div class = "line" > < a id = "l00074" name = "l00074" > < / a > < span class = "lineno" > 74< / span > < span class = "keywordflow" > if< / span > (arc_counts_[arc_index] > 0) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00075" name = "l00075" > < / a > < span class = "lineno" > 75< / span > < span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > = arcs_[arc_index];< / div >
< div class = "line" > < a id = "l00076" name = "l00076" > < / a > < span class = "lineno" > 76< / span > < span class = "keywordflow" > if< / span > (integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a309d057e12c8d4d393f13975eea2e2a9" > IsCurrentlyIgnored< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var)) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00077" name = "l00077" > < / a > < span class = "lineno" > 77< / span > < span class = "keyword" > const< / span > IntegerValue new_head_lb =< / div >
< div class = "line" > < a id = "l00078" name = "l00078" > < / a > < span class = "lineno" > 78< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9" > LowerBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .tail_var) + ArcOffset(< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > );< / div >
< div class = "line" > < a id = "l00079" name = "l00079" > < / a > < span class = "lineno" > 79< / span > < span class = "keywordflow" > if< / span > (new_head_lb > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9" > LowerBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var)) {< / div >
< div class = "line" > < a id = "l00080" name = "l00080" > < / a > < span class = "lineno" > 80< / span > < span class = "keywordflow" > if< / span > (!EnqueueAndCheck(< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > , new_head_lb, trail_)) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00081" name = "l00081" > < / a > < span class = "lineno" > 81< / span > }< / div >
< div class = "line" > < a id = "l00082" name = "l00082" > < / a > < span class = "lineno" > 82< / span > }< / div >
< div class = "line" > < a id = "l00083" name = "l00083" > < / a > < span class = "lineno" > 83< / span > }< / div >
< div class = "line" > < a id = "l00084" name = "l00084" > < / a > < span class = "lineno" > 84< / span > < / div >
< div class = "line" > < a id = "l00085" name = "l00085" > < / a > < span class = "lineno" > 85< / span > < span class = "comment" > // Do the actual propagation of the IntegerVariable bounds.< / span > < / div >
< div class = "line" > < a id = "l00086" name = "l00086" > < / a > < span class = "lineno" > 86< / span > InitializeBFQueueWithModifiedNodes();< / div >
< div class = "line" > < a id = "l00087" name = "l00087" > < / a > < span class = "lineno" > 87< / span > < span class = "keywordflow" > if< / span > (!BellmanFordTarjan(trail_)) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00088" name = "l00088" > < / a > < span class = "lineno" > 88< / span > < / div >
< div class = "line" > < a id = "l00089" name = "l00089" > < / a > < span class = "lineno" > 89< / span > < span class = "comment" > // We can only test that no propagation is left if we didn' t enqueue new< / span > < / div >
< div class = "line" > < a id = "l00090" name = "l00090" > < / a > < span class = "lineno" > 90< / span > < span class = "comment" > // literal in the presence of optional variables.< / span > < / div >
< div class = "line" > < a id = "l00091" name = "l00091" > < / a > < span class = "lineno" > 91< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00092" name = "l00092" > < / a > < span class = "lineno" > 92< / span > < span class = "comment" > // TODO(user): Because of our code to deal with InPropagationLoop(), this is< / span > < / div >
< div class = "line" > < a id = "l00093" name = "l00093" > < / a > < span class = "lineno" > 93< / span > < span class = "comment" > // not always true. Find a cleaner way to DCHECK() while not failing in this< / span > < / div >
< div class = "line" > < a id = "l00094" name = "l00094" > < / a > < span class = "lineno" > 94< / span > < span class = "comment" > // corner case.< / span > < / div >
< div class = "line" > < a id = "l00095" name = "l00095" > < / a > < span class = "lineno" > 95< / span > < span class = "keywordflow" > if< / span > (< span class = "comment" > /*DISABLES CODE*/< / span > (< span class = "keyword" > false< / span > ) & & < / div >
< div class = "line" > < a id = "l00096" name = "l00096" > < / a > < span class = "lineno" > 96< / span > < a class = "code hl_variable" href = "classoperations__research_1_1sat_1_1_sat_propagator.html#a06e2c6f3432a89d0160b831d48afd8b7" > propagation_trail_index_< / a > == trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_trail.html#a8ef12397d1682615bc3108c397734179" > Index< / a > ()) {< / div >
< div class = "line" > < a id = "l00097" name = "l00097" > < / a > < span class = "lineno" > 97< / span > < a class = "code hl_define" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (NoPropagationLeft(*trail_));< / div >
< div class = "line" > < a id = "l00098" name = "l00098" > < / a > < span class = "lineno" > 98< / span > }< / div >
< div class = "line" > < a id = "l00099" name = "l00099" > < / a > < span class = "lineno" > 99< / span > < / div >
< div class = "line" > < a id = "l00100" name = "l00100" > < / a > < span class = "lineno" > 100< / span > < span class = "comment" > // Propagate the presence literals of the arcs that can' t be added.< / span > < / div >
< div class = "line" > < a id = "l00101" name = "l00101" > < / a > < span class = "lineno" > 101< / span > PropagateOptionalArcs(trail_);< / div >
< div class = "line" > < a id = "l00102" name = "l00102" > < / a > < span class = "lineno" > 102< / span > < / div >
< div class = "line" > < a id = "l00103" name = "l00103" > < / a > < span class = "lineno" > 103< / span > < span class = "comment" > // Clean-up modified_vars_ to do as little as possible on the next call.< / span > < / div >
< div class = "line" > < a id = "l00104" name = "l00104" > < / a > < span class = "lineno" > 104< / span > modified_vars_.< a class = "code hl_function" href = "classoperations__research_1_1_sparse_bitset.html#ae09e38958e558d2c776bc555a0dc2fc7" > ClearAndResize< / a > (integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#af88a18429909498405c450015f0a223a" > NumIntegerVariables< / a > ());< / div >
< div class = "line" > < a id = "l00105" name = "l00105" > < / a > < span class = "lineno" > 105< / span > < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00106" name = "l00106" > < / a > < span class = "lineno" > 106< / span > }< / div >
< div class = "line" > < a id = "l00107" name = "l00107" > < / a > < span class = "lineno" > 107< / span > < / div >
< div class = "line" > < a id = "l00108" name = "l00108" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#af3c64e10aa2bb2cc1d3615d800f7c71c" > 108< / a > < / span > < span class = "keywordtype" > bool< / span > < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#af3c64e10aa2bb2cc1d3615d800f7c71c" > PrecedencesPropagator::PropagateOutgoingArcs< / a > (IntegerVariable < a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ) {< / div >
< div class = "line" > < a id = "l00109" name = "l00109" > < / a > < span class = "lineno" > 109< / span > < a class = "code hl_define" href = "base_2logging_8h.html#ab25e01a2942b821d66371fc68d53f2eb" > CHECK_NE< / a > (< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > , < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > );< / div >
< div class = "line" > < a id = "l00110" name = "l00110" > < / a > < span class = "lineno" > 110< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > > = impacted_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ()) < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00111" name = "l00111" > < / a > < span class = "lineno" > 111< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > arc_index : impacted_arcs_[< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]) {< / div >
< div class = "line" > < a id = "l00112" name = "l00112" > < / a > < span class = "lineno" > 112< / span > < span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > = arcs_[arc_index];< / div >
< div class = "line" > < a id = "l00113" name = "l00113" > < / a > < span class = "lineno" > 113< / span > < span class = "keywordflow" > if< / span > (integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a309d057e12c8d4d393f13975eea2e2a9" > IsCurrentlyIgnored< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var)) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00114" name = "l00114" > < / a > < span class = "lineno" > 114< / span > < span class = "keyword" > const< / span > IntegerValue new_head_lb =< / div >
< div class = "line" > < a id = "l00115" name = "l00115" > < / a > < span class = "lineno" > 115< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9" > LowerBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .tail_var) + ArcOffset(< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > );< / div >
< div class = "line" > < a id = "l00116" name = "l00116" > < / a > < span class = "lineno" > 116< / span > < span class = "keywordflow" > if< / span > (new_head_lb > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9" > LowerBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var)) {< / div >
< div class = "line" > < a id = "l00117" name = "l00117" > < / a > < span class = "lineno" > 117< / span > < span class = "keywordflow" > if< / span > (!EnqueueAndCheck(< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > , new_head_lb, trail_)) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00118" name = "l00118" > < / a > < span class = "lineno" > 118< / span > }< / div >
< div class = "line" > < a id = "l00119" name = "l00119" > < / a > < span class = "lineno" > 119< / span > }< / div >
< div class = "line" > < a id = "l00120" name = "l00120" > < / a > < span class = "lineno" > 120< / span > < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00121" name = "l00121" > < / a > < span class = "lineno" > 121< / span > }< / div >
< div class = "line" > < a id = "l00122" name = "l00122" > < / a > < span class = "lineno" > 122< / span > < / div >
< div class = "line" > < a id = "l00123" name = "l00123" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#ae20e3965a974e3a5fe816c033a94e568" > 123< / a > < / span > < span class = "keywordtype" > void< / span > < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#ae20e3965a974e3a5fe816c033a94e568" > PrecedencesPropagator::Untrail< / a > (< span class = "keyword" > const< / span > < a class = "code hl_class" href = "classoperations__research_1_1sat_1_1_trail.html" > Trail< / a > & trail, < span class = "keywordtype" > int< / span > trail_index) {< / div >
< div class = "line" > < a id = "l00124" name = "l00124" > < / a > < span class = "lineno" > 124< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "classoperations__research_1_1sat_1_1_sat_propagator.html#a06e2c6f3432a89d0160b831d48afd8b7" > propagation_trail_index_< / a > > trail_index) {< / div >
< div class = "line" > < a id = "l00125" name = "l00125" > < / a > < span class = "lineno" > 125< / span > < span class = "comment" > // This means that we already propagated all there is to propagate< / span > < / div >
< div class = "line" > < a id = "l00126" name = "l00126" > < / a > < span class = "lineno" > 126< / span > < span class = "comment" > // at the level trail_index, so we can safely clear modified_vars_ in case< / span > < / div >
< div class = "line" > < a id = "l00127" name = "l00127" > < / a > < span class = "lineno" > 127< / span > < span class = "comment" > // it wasn' t already done.< / span > < / div >
< div class = "line" > < a id = "l00128" name = "l00128" > < / a > < span class = "lineno" > 128< / span > modified_vars_.< a class = "code hl_function" href = "classoperations__research_1_1_sparse_bitset.html#ae09e38958e558d2c776bc555a0dc2fc7" > ClearAndResize< / a > (integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#af88a18429909498405c450015f0a223a" > NumIntegerVariables< / a > ());< / div >
< div class = "line" > < a id = "l00129" name = "l00129" > < / a > < span class = "lineno" > 129< / span > }< / div >
< div class = "line" > < a id = "l00130" name = "l00130" > < / a > < span class = "lineno" > 130< / span > < span class = "keywordflow" > while< / span > (< a class = "code hl_variable" href = "classoperations__research_1_1sat_1_1_sat_propagator.html#a06e2c6f3432a89d0160b831d48afd8b7" > propagation_trail_index_< / a > > trail_index) {< / div >
< div class = "line" > < a id = "l00131" name = "l00131" > < / a > < span class = "lineno" > 131< / span > < span class = "keyword" > const< / span > < a class = "code hl_class" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > < a class = "code hl_variable" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > = trail[--< a class = "code hl_variable" href = "classoperations__research_1_1sat_1_1_sat_propagator.html#a06e2c6f3432a89d0160b831d48afd8b7" > propagation_trail_index_< / a > ];< / div >
< div class = "line" > < a id = "l00132" name = "l00132" > < / a > < span class = "lineno" > 132< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > .Index() > = literal_to_new_impacted_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ()) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00133" name = "l00133" > < / a > < span class = "lineno" > 133< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > arc_index :< / div >
< div class = "line" > < a id = "l00134" name = "l00134" > < / a > < span class = "lineno" > 134< / span > literal_to_new_impacted_arcs_[< a class = "code hl_variable" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > .Index()]) {< / div >
< div class = "line" > < a id = "l00135" name = "l00135" > < / a > < span class = "lineno" > 135< / span > < span class = "keywordflow" > if< / span > (arc_counts_[arc_index]++ == 0) {< / div >
< div class = "line" > < a id = "l00136" name = "l00136" > < / a > < span class = "lineno" > 136< / span > < span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > = arcs_[arc_index];< / div >
< div class = "line" > < a id = "l00137" name = "l00137" > < / a > < span class = "lineno" > 137< / span > impacted_arcs_[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .tail_var].< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a058bda4957df6a97b1ea6c9fd783f672" > pop_back< / a > ();< / div >
< div class = "line" > < a id = "l00138" name = "l00138" > < / a > < span class = "lineno" > 138< / span > }< / div >
< div class = "line" > < a id = "l00139" name = "l00139" > < / a > < span class = "lineno" > 139< / span > }< / div >
< div class = "line" > < a id = "l00140" name = "l00140" > < / a > < span class = "lineno" > 140< / span > }< / div >
< div class = "line" > < a id = "l00141" name = "l00141" > < / a > < span class = "lineno" > 141< / span > }< / div >
< div class = "line" > < a id = "l00142" name = "l00142" > < / a > < span class = "lineno" > 142< / span > < / div >
< div class = "line" > < a id = "l00143" name = "l00143" > < / a > < span class = "lineno" > 143< / span > < span class = "comment" > // Instead of simply sorting the IntegerPrecedences returned by .var,< / span > < / div >
< div class = "line" > < a id = "l00144" name = "l00144" > < / a > < span class = "lineno" > 144< / span > < span class = "comment" > // experiments showed that it is faster to regroup all the same .var " by hand" < / span > < / div >
< div class = "line" > < a id = "l00145" name = "l00145" > < / a > < span class = "lineno" > 145< / span > < span class = "comment" > // by first computing how many times they appear and then apply the sorting< / span > < / div >
< div class = "line" > < a id = "l00146" name = "l00146" > < / a > < span class = "lineno" > 146< / span > < span class = "comment" > // permutation.< / span > < / div >
< div class = "line" > < a id = "l00147" name = "l00147" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#a880ad5f7514aee33f81302d8af2a7be2" > 147< / a > < / span > < span class = "keywordtype" > void< / span > < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#a880ad5f7514aee33f81302d8af2a7be2" > PrecedencesPropagator::ComputePrecedences< / a > (< / div >
< div class = "line" > < a id = "l00148" name = "l00148" > < / a > < span class = "lineno" > 148< / span > < span class = "keyword" > const< / span > std::vector< IntegerVariable> & vars,< / div >
< div class = "line" > < a id = "l00149" name = "l00149" > < / a > < span class = "lineno" > 149< / span > std::vector< IntegerPrecedences> * output) {< / div >
< div class = "line" > < a id = "l00150" name = "l00150" > < / a > < span class = "lineno" > 150< / span > tmp_sorted_vars_.clear();< / div >
< div class = "line" > < a id = "l00151" name = "l00151" > < / a > < span class = "lineno" > 151< / span > tmp_precedences_.clear();< / div >
< div class = "line" > < a id = "l00152" name = "l00152" > < / a > < span class = "lineno" > 152< / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > < a class = "code hl_variable" href = "local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > = 0; < a class = "code hl_variable" href = "local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > < vars.size(); ++< a class = "code hl_variable" href = "local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > ) {< / div >
< div class = "line" > < a id = "l00153" name = "l00153" > < / a > < span class = "lineno" > 153< / span > < span class = "keyword" > const< / span > IntegerVariable < a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > = vars[< a class = "code hl_variable" href = "local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > ];< / div >
< div class = "line" > < a id = "l00154" name = "l00154" > < / a > < span class = "lineno" > 154< / span > < a class = "code hl_define" href = "base_2logging_8h.html#ab25e01a2942b821d66371fc68d53f2eb" > CHECK_NE< / a > (< a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > , < a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > );< / div >
< div class = "line" > < a id = "l00155" name = "l00155" > < / a > < span class = "lineno" > 155< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > > = impacted_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ()) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00156" name = "l00156" > < / a > < span class = "lineno" > 156< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > arc_index : impacted_arcs_[< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]) {< / div >
< div class = "line" > < a id = "l00157" name = "l00157" > < / a > < span class = "lineno" > 157< / span > < span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > = arcs_[arc_index];< / div >
< div class = "line" > < a id = "l00158" name = "l00158" > < / a > < span class = "lineno" > 158< / span > < span class = "keywordflow" > if< / span > (integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a309d057e12c8d4d393f13975eea2e2a9" > IsCurrentlyIgnored< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var)) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00159" name = "l00159" > < / a > < span class = "lineno" > 159< / span > < / div >
< div class = "line" > < a id = "l00160" name = "l00160" > < / a > < span class = "lineno" > 160< / span > IntegerValue offset = < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .offset;< / div >
< div class = "line" > < a id = "l00161" name = "l00161" > < / a > < span class = "lineno" > 161< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .offset_var != < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > ) {< / div >
< div class = "line" > < a id = "l00162" name = "l00162" > < / a > < span class = "lineno" > 162< / span > offset += integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9" > LowerBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .offset_var);< / div >
< div class = "line" > < a id = "l00163" name = "l00163" > < / a > < span class = "lineno" > 163< / span > }< / div >
< div class = "line" > < a id = "l00164" name = "l00164" > < / a > < span class = "lineno" > 164< / span > < / div >
< div class = "line" > < a id = "l00165" name = "l00165" > < / a > < span class = "lineno" > 165< / span > < span class = "comment" > // TODO(user): it seems better to ignore negative min offset as we will< / span > < / div >
< div class = "line" > < a id = "l00166" name = "l00166" > < / a > < span class = "lineno" > 166< / span > < span class = "comment" > // often have relation of the form interval_start > = interval_end -< / span > < / div >
< div class = "line" > < a id = "l00167" name = "l00167" > < / a > < span class = "lineno" > 167< / span > < span class = "comment" > // offset, and such relation are usually not useful. Revisit this in case< / span > < / div >
< div class = "line" > < a id = "l00168" name = "l00168" > < / a > < span class = "lineno" > 168< / span > < span class = "comment" > // we see problems where we can propagate more without this test.< / span > < / div >
< div class = "line" > < a id = "l00169" name = "l00169" > < / a > < span class = "lineno" > 169< / span > < span class = "keywordflow" > if< / span > (offset < 0) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00170" name = "l00170" > < / a > < span class = "lineno" > 170< / span > < / div >
< div class = "line" > < a id = "l00171" name = "l00171" > < / a > < span class = "lineno" > 171< / span > < span class = "keywordflow" > if< / span > (var_to_degree_[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var] == 0) {< / div >
< div class = "line" > < a id = "l00172" name = "l00172" > < / a > < span class = "lineno" > 172< / span > tmp_sorted_vars_.push_back(< / div >
< div class = "line" > < a id = "l00173" name = "l00173" > < / a > < span class = "lineno" > 173< / span > {< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var, integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9" > LowerBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var)});< / div >
< div class = "line" > < a id = "l00174" name = "l00174" > < / a > < span class = "lineno" > 174< / span > } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a id = "l00175" name = "l00175" > < / a > < span class = "lineno" > 175< / span > < span class = "comment" > // This " seen" mechanism is needed because we may have multi-arc and we< / span > < / div >
< div class = "line" > < a id = "l00176" name = "l00176" > < / a > < span class = "lineno" > 176< / span > < span class = "comment" > // don' t want any duplicates in the " is_before" relation. Note that it< / span > < / div >
< div class = "line" > < a id = "l00177" name = "l00177" > < / a > < span class = "lineno" > 177< / span > < span class = "comment" > // works because var_to_last_index_ is reset by the var_to_degree_ == 0< / span > < / div >
< div class = "line" > < a id = "l00178" name = "l00178" > < / a > < span class = "lineno" > 178< / span > < span class = "comment" > // case.< / span > < / div >
< div class = "line" > < a id = "l00179" name = "l00179" > < / a > < span class = "lineno" > 179< / span > < span class = "keywordflow" > if< / span > (var_to_last_index_[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var] == < a class = "code hl_variable" href = "local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > ) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00180" name = "l00180" > < / a > < span class = "lineno" > 180< / span > }< / div >
< div class = "line" > < a id = "l00181" name = "l00181" > < / a > < span class = "lineno" > 181< / span > var_to_last_index_[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var] = < a class = "code hl_variable" href = "local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > ;< / div >
< div class = "line" > < a id = "l00182" name = "l00182" > < / a > < span class = "lineno" > 182< / span > var_to_degree_[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var]++;< / div >
< div class = "line" > < a id = "l00183" name = "l00183" > < / a > < span class = "lineno" > 183< / span > tmp_precedences_.push_back(< / div >
< div class = "line" > < a id = "l00184" name = "l00184" > < / a > < span class = "lineno" > 184< / span > {< a class = "code hl_variable" href = "local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > , < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var, arc_index.value(), offset});< / div >
< div class = "line" > < a id = "l00185" name = "l00185" > < / a > < span class = "lineno" > 185< / span > }< / div >
< div class = "line" > < a id = "l00186" name = "l00186" > < / a > < span class = "lineno" > 186< / span > }< / div >
< div class = "line" > < a id = "l00187" name = "l00187" > < / a > < span class = "lineno" > 187< / span > < / div >
< div class = "line" > < a id = "l00188" name = "l00188" > < / a > < span class = "lineno" > 188< / span > < span class = "comment" > // This order is a topological order for the precedences relation order< / span > < / div >
< div class = "line" > < a id = "l00189" name = "l00189" > < / a > < span class = "lineno" > 189< / span > < span class = "comment" > // provided that all the offset between the involved IntegerVariable are< / span > < / div >
< div class = "line" > < a id = "l00190" name = "l00190" > < / a > < span class = "lineno" > 190< / span > < span class = "comment" > // positive.< / span > < / div >
< div class = "line" > < a id = "l00191" name = "l00191" > < / a > < span class = "lineno" > 191< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00192" name = "l00192" > < / a > < span class = "lineno" > 192< / span > < span class = "comment" > // TODO(user): use an order that is always topological? This is not clear< / span > < / div >
< div class = "line" > < a id = "l00193" name = "l00193" > < / a > < span class = "lineno" > 193< / span > < span class = "comment" > // since it may be slower to compute and not worth it because the order below< / span > < / div >
< div class = "line" > < a id = "l00194" name = "l00194" > < / a > < span class = "lineno" > 194< / span > < span class = "comment" > // is more natural and may work better.< / span > < / div >
< div class = "line" > < a id = "l00195" name = "l00195" > < / a > < span class = "lineno" > 195< / span > std::sort(tmp_sorted_vars_.begin(), tmp_sorted_vars_.end());< / div >
< div class = "line" > < a id = "l00196" name = "l00196" > < / a > < span class = "lineno" > 196< / span > < / div >
< div class = "line" > < a id = "l00197" name = "l00197" > < / a > < span class = "lineno" > 197< / span > < span class = "comment" > // Permute tmp_precedences_ into the output to put it in the correct order.< / span > < / div >
< div class = "line" > < a id = "l00198" name = "l00198" > < / a > < span class = "lineno" > 198< / span > < span class = "comment" > // For that we transform var_to_degree_ to point to the first position of< / span > < / div >
< div class = "line" > < a id = "l00199" name = "l00199" > < / a > < span class = "lineno" > 199< / span > < span class = "comment" > // each lbvar in the output vector.< / span > < / div >
< div class = "line" > < a id = "l00200" name = "l00200" > < / a > < span class = "lineno" > 200< / span > < span class = "keywordtype" > int< / span > < a class = "code hl_variable" href = "sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe" > start< / a > = 0;< / div >
< div class = "line" > < a id = "l00201" name = "l00201" > < / a > < span class = "lineno" > 201< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > SortedVar pair : tmp_sorted_vars_) {< / div >
< div class = "line" > < a id = "l00202" name = "l00202" > < / a > < span class = "lineno" > 202< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > degree = var_to_degree_[pair.var];< / div >
< div class = "line" > < a id = "l00203" name = "l00203" > < / a > < span class = "lineno" > 203< / span > < span class = "keywordflow" > if< / span > (degree > 1) {< / div >
< div class = "line" > < a id = "l00204" name = "l00204" > < / a > < span class = "lineno" > 204< / span > var_to_degree_[pair.var] = < a class = "code hl_variable" href = "sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe" > start< / a > ;< / div >
< div class = "line" > < a id = "l00205" name = "l00205" > < / a > < span class = "lineno" > 205< / span > < a class = "code hl_variable" href = "sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe" > start< / a > += degree;< / div >
< div class = "line" > < a id = "l00206" name = "l00206" > < / a > < span class = "lineno" > 206< / span > } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a id = "l00207" name = "l00207" > < / a > < span class = "lineno" > 207< / span > < span class = "comment" > // Optimization: we remove degree one relations.< / span > < / div >
< div class = "line" > < a id = "l00208" name = "l00208" > < / a > < span class = "lineno" > 208< / span > var_to_degree_[pair.var] = -1;< / div >
< div class = "line" > < a id = "l00209" name = "l00209" > < / a > < span class = "lineno" > 209< / span > }< / div >
< div class = "line" > < a id = "l00210" name = "l00210" > < / a > < span class = "lineno" > 210< / span > }< / div >
< div class = "line" > < a id = "l00211" name = "l00211" > < / a > < span class = "lineno" > 211< / span > output-> < a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (< a class = "code hl_variable" href = "sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe" > start< / a > );< / div >
< div class = "line" > < a id = "l00212" name = "l00212" > < / a > < span class = "lineno" > 212< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_struct" href = "structoperations__research_1_1sat_1_1_precedences_propagator_1_1_integer_precedences.html" > IntegerPrecedences< / a > & precedence : tmp_precedences_) {< / div >
< div class = "line" > < a id = "l00213" name = "l00213" > < / a > < span class = "lineno" > 213< / span > < span class = "keywordflow" > if< / span > (var_to_degree_[precedence.var] < 0) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00214" name = "l00214" > < / a > < span class = "lineno" > 214< / span > (*output)[var_to_degree_[precedence.var]++] = precedence;< / div >
< div class = "line" > < a id = "l00215" name = "l00215" > < / a > < span class = "lineno" > 215< / span > }< / div >
< div class = "line" > < a id = "l00216" name = "l00216" > < / a > < span class = "lineno" > 216< / span > < / div >
< div class = "line" > < a id = "l00217" name = "l00217" > < / a > < span class = "lineno" > 217< / span > < span class = "comment" > // Cleanup var_to_degree_, note that we don' t need to clean< / span > < / div >
< div class = "line" > < a id = "l00218" name = "l00218" > < / a > < span class = "lineno" > 218< / span > < span class = "comment" > // var_to_last_index_.< / span > < / div >
< div class = "line" > < a id = "l00219" name = "l00219" > < / a > < span class = "lineno" > 219< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > SortedVar pair : tmp_sorted_vars_) {< / div >
< div class = "line" > < a id = "l00220" name = "l00220" > < / a > < span class = "lineno" > 220< / span > var_to_degree_[pair.var] = 0;< / div >
< div class = "line" > < a id = "l00221" name = "l00221" > < / a > < span class = "lineno" > 221< / span > }< / div >
< div class = "line" > < a id = "l00222" name = "l00222" > < / a > < span class = "lineno" > 222< / span > }< / div >
< div class = "line" > < a id = "l00223" name = "l00223" > < / a > < span class = "lineno" > 223< / span > < / div >
< div class = "line" > < a id = "l00224" name = "l00224" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#a09ebe3a2f1825d6366649cd157e5020f" > 224< / a > < / span > < span class = "keywordtype" > void< / span > < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#a09ebe3a2f1825d6366649cd157e5020f" > PrecedencesPropagator::AddPrecedenceReason< / a > (< / div >
< div class = "line" > < a id = "l00225" name = "l00225" > < / a > < span class = "lineno" > 225< / span > < span class = "keywordtype" > int< / span > arc_index, IntegerValue min_offset,< / div >
< div class = "line" > < a id = "l00226" name = "l00226" > < / a > < span class = "lineno" > 226< / span > std::vector< Literal> * literal_reason,< / div >
< div class = "line" > < a id = "l00227" name = "l00227" > < / a > < span class = "lineno" > 227< / span > std::vector< IntegerLiteral> * integer_reason)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a id = "l00228" name = "l00228" > < / a > < span class = "lineno" > 228< / span > < span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > = arcs_[< a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > (arc_index)];< / div >
< div class = "line" > < a id = "l00229" name = "l00229" > < / a > < span class = "lineno" > 229< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_class" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > l : < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .presence_literals) {< / div >
< div class = "line" > < a id = "l00230" name = "l00230" > < / a > < span class = "lineno" > 230< / span > literal_reason-> < a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (l.< a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644" > Negated< / a > ());< / div >
< div class = "line" > < a id = "l00231" name = "l00231" > < / a > < span class = "lineno" > 231< / span > }< / div >
< div class = "line" > < a id = "l00232" name = "l00232" > < / a > < span class = "lineno" > 232< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .offset_var != < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > ) {< / div >
< div class = "line" > < a id = "l00233" name = "l00233" > < / a > < span class = "lineno" > 233< / span > < span class = "comment" > // Reason for ArcOffset(arc) to be > = min_offset.< / span > < / div >
< div class = "line" > < a id = "l00234" name = "l00234" > < / a > < span class = "lineno" > 234< / span > integer_reason-> push_back(< a class = "code hl_function" href = "structoperations__research_1_1sat_1_1_integer_literal.html#a6c233aafac25ea66d69de93a83c9be63" > IntegerLiteral::GreaterOrEqual< / a > (< / div >
< div class = "line" > < a id = "l00235" name = "l00235" > < / a > < span class = "lineno" > 235< / span > < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .offset_var, min_offset - < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .offset));< / div >
< div class = "line" > < a id = "l00236" name = "l00236" > < / a > < span class = "lineno" > 236< / span > }< / div >
< div class = "line" > < a id = "l00237" name = "l00237" > < / a > < span class = "lineno" > 237< / span > }< / div >
< div class = "line" > < a id = "l00238" name = "l00238" > < / a > < span class = "lineno" > 238< / span > < / div >
< div class = "line" > < a id = "l00239" name = "l00239" > < / a > < span class = "lineno" > 239< / span > < span class = "keywordtype" > void< / span > PrecedencesPropagator::AdjustSizeFor(IntegerVariable i) {< / div >
< div class = "line" > < a id = "l00240" name = "l00240" > < / a > < span class = "lineno" > 240< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > < a class = "code hl_variable" href = "local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > = < a class = "code hl_variable" href = "alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f" > std::max< / a > (i.value(), < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22" > NegationOf< / a > (i).< a class = "code hl_variable" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ());< / div >
< div class = "line" > < a id = "l00241" name = "l00241" > < / a > < span class = "lineno" > 241< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > > = impacted_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ()) {< / div >
< div class = "line" > < a id = "l00242" name = "l00242" > < / a > < span class = "lineno" > 242< / span > < span class = "comment" > // TODO(user): only watch lower bound of the relevant variable instead< / span > < / div >
< div class = "line" > < a id = "l00243" name = "l00243" > < / a > < span class = "lineno" > 243< / span > < span class = "comment" > // of watching everything in [0, max_index_of_variable_used_in_this_class).< / span > < / div >
< div class = "line" > < a id = "l00244" name = "l00244" > < / a > < span class = "lineno" > 244< / span > < span class = "keywordflow" > for< / span > (IntegerVariable < a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > (impacted_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ()); < a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > < = < a class = "code hl_variable" href = "local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > ; ++< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ) {< / div >
< div class = "line" > < a id = "l00245" name = "l00245" > < / a > < span class = "lineno" > 245< / span > watcher_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_generic_literal_watcher.html#aaede7c755aad90772efda6db087f3413" > WatchLowerBound< / a > (< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > , watcher_id_);< / div >
< div class = "line" > < a id = "l00246" name = "l00246" > < / a > < span class = "lineno" > 246< / span > }< / div >
< div class = "line" > < a id = "l00247" name = "l00247" > < / a > < span class = "lineno" > 247< / span > impacted_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > + 1);< / div >
< div class = "line" > < a id = "l00248" name = "l00248" > < / a > < span class = "lineno" > 248< / span > impacted_potential_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > + 1);< / div >
< div class = "line" > < a id = "l00249" name = "l00249" > < / a > < span class = "lineno" > 249< / span > var_to_degree_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > + 1);< / div >
< div class = "line" > < a id = "l00250" name = "l00250" > < / a > < span class = "lineno" > 250< / span > var_to_last_index_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > + 1);< / div >
< div class = "line" > < a id = "l00251" name = "l00251" > < / a > < span class = "lineno" > 251< / span > }< / div >
< div class = "line" > < a id = "l00252" name = "l00252" > < / a > < span class = "lineno" > 252< / span > }< / div >
< div class = "line" > < a id = "l00253" name = "l00253" > < / a > < span class = "lineno" > 253< / span > < / div >
< div class = "line" > < a id = "l00254" name = "l00254" > < / a > < span class = "lineno" > 254< / span > < span class = "keywordtype" > void< / span > PrecedencesPropagator::AddArc(< / div >
< div class = "line" > < a id = "l00255" name = "l00255" > < / a > < span class = "lineno" > 255< / span > IntegerVariable < a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > , IntegerVariable < a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > , IntegerValue offset,< / div >
< div class = "line" > < a id = "l00256" name = "l00256" > < / a > < span class = "lineno" > 256< / span > IntegerVariable offset_var, absl::Span< const Literal> presence_literals) {< / div >
< div class = "line" > < a id = "l00257" name = "l00257" > < / a > < span class = "lineno" > 257< / span > < a class = "code hl_define" href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > (trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_trail.html#ad63c4461a1384629cb99413c6df8b9ca" > CurrentDecisionLevel< / a > (), 0);< / div >
< div class = "line" > < a id = "l00258" name = "l00258" > < / a > < span class = "lineno" > 258< / span > AdjustSizeFor(< a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > );< / div >
< div class = "line" > < a id = "l00259" name = "l00259" > < / a > < span class = "lineno" > 259< / span > AdjustSizeFor(< a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > );< / div >
< div class = "line" > < a id = "l00260" name = "l00260" > < / a > < span class = "lineno" > 260< / span > < span class = "keywordflow" > if< / span > (offset_var != < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > ) AdjustSizeFor(offset_var);< / div >
< div class = "line" > < a id = "l00261" name = "l00261" > < / a > < span class = "lineno" > 261< / span > < / div >
< div class = "line" > < a id = "l00262" name = "l00262" > < / a > < span class = "lineno" > 262< / span > < span class = "comment" > // This arc is present iff all the literals here are true.< / span > < / div >
< div class = "line" > < a id = "l00263" name = "l00263" > < / a > < span class = "lineno" > 263< / span > absl::InlinedVector< Literal, 6> enforcement_literals;< / div >
< div class = "line" > < a id = "l00264" name = "l00264" > < / a > < span class = "lineno" > 264< / span > {< / div >
< div class = "line" > < a id = "l00265" name = "l00265" > < / a > < span class = "lineno" > 265< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > Literal l : presence_literals) {< / div >
< div class = "line" > < a id = "l00266" name = "l00266" > < / a > < span class = "lineno" > 266< / span > enforcement_literals.push_back(l);< / div >
< div class = "line" > < a id = "l00267" name = "l00267" > < / a > < span class = "lineno" > 267< / span > }< / div >
< div class = "line" > < a id = "l00268" name = "l00268" > < / a > < span class = "lineno" > 268< / span > < span class = "keywordflow" > if< / span > (integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#acc1aaae243ed4381e84f8309aacb3bbc" > IsOptional< / a > (< a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > )) {< / div >
< div class = "line" > < a id = "l00269" name = "l00269" > < / a > < span class = "lineno" > 269< / span > enforcement_literals.push_back(< / div >
< div class = "line" > < a id = "l00270" name = "l00270" > < / a > < span class = "lineno" > 270< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ac8db20a5dab063aa3ca64a4ae1202d4c" > IsIgnoredLiteral< / a > (< a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > ).< a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644" > Negated< / a > ());< / div >
< div class = "line" > < a id = "l00271" name = "l00271" > < / a > < span class = "lineno" > 271< / span > }< / div >
< div class = "line" > < a id = "l00272" name = "l00272" > < / a > < span class = "lineno" > 272< / span > < span class = "keywordflow" > if< / span > (integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#acc1aaae243ed4381e84f8309aacb3bbc" > IsOptional< / a > (< a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > )) {< / div >
< div class = "line" > < a id = "l00273" name = "l00273" > < / a > < span class = "lineno" > 273< / span > enforcement_literals.push_back(< / div >
< div class = "line" > < a id = "l00274" name = "l00274" > < / a > < span class = "lineno" > 274< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ac8db20a5dab063aa3ca64a4ae1202d4c" > IsIgnoredLiteral< / a > (< a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > ).< a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644" > Negated< / a > ());< / div >
< div class = "line" > < a id = "l00275" name = "l00275" > < / a > < span class = "lineno" > 275< / span > }< / div >
< div class = "line" > < a id = "l00276" name = "l00276" > < / a > < span class = "lineno" > 276< / span > < span class = "keywordflow" > if< / span > (offset_var != < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > & & < / div >
< div class = "line" > < a id = "l00277" name = "l00277" > < / a > < span class = "lineno" > 277< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#acc1aaae243ed4381e84f8309aacb3bbc" > IsOptional< / a > (offset_var)) {< / div >
< div class = "line" > < a id = "l00278" name = "l00278" > < / a > < span class = "lineno" > 278< / span > enforcement_literals.push_back(< / div >
< div class = "line" > < a id = "l00279" name = "l00279" > < / a > < span class = "lineno" > 279< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ac8db20a5dab063aa3ca64a4ae1202d4c" > IsIgnoredLiteral< / a > (offset_var).< a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644" > Negated< / a > ());< / div >
< div class = "line" > < a id = "l00280" name = "l00280" > < / a > < span class = "lineno" > 280< / span > }< / div >
< div class = "line" > < a id = "l00281" name = "l00281" > < / a > < span class = "lineno" > 281< / span > < a class = "code hl_function" href = "namespacegtl.html#a288a1dc92da5d3ad62d4bc4cec9e8b1d" > gtl::STLSortAndRemoveDuplicates< / a > (& enforcement_literals);< / div >
< div class = "line" > < a id = "l00282" name = "l00282" > < / a > < span class = "lineno" > 282< / span > < span class = "keywordtype" > int< / span > new_size = 0;< / div >
< div class = "line" > < a id = "l00283" name = "l00283" > < / a > < span class = "lineno" > 283< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > Literal l : enforcement_literals) {< / div >
< div class = "line" > < a id = "l00284" name = "l00284" > < / a > < span class = "lineno" > 284< / span > < span class = "keywordflow" > if< / span > (trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_trail.html#a4793952607a98dfddfbcc17abfabbb4b" > Assignment< / a > ().< a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_variables_assignment.html#a5300129913f51dcb0b1c531e3248490e" > LiteralIsTrue< / a > (Literal(l))) {< / div >
< div class = "line" > < a id = "l00285" name = "l00285" > < / a > < span class = "lineno" > 285< / span > < span class = "keywordflow" > continue< / span > ; < span class = "comment" > // At true, ignore this literal.< / span > < / div >
< div class = "line" > < a id = "l00286" name = "l00286" > < / a > < span class = "lineno" > 286< / span > } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_trail.html#a4793952607a98dfddfbcc17abfabbb4b" > Assignment< / a > ().< a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_variables_assignment.html#acfd1646011e643f58fd7dc66d9cc90a5" > LiteralIsFalse< / a > (Literal(l))) {< / div >
< div class = "line" > < a id = "l00287" name = "l00287" > < / a > < span class = "lineno" > 287< / span > < span class = "keywordflow" > return< / span > ; < span class = "comment" > // At false, ignore completely this arc.< / span > < / div >
< div class = "line" > < a id = "l00288" name = "l00288" > < / a > < span class = "lineno" > 288< / span > }< / div >
< div class = "line" > < a id = "l00289" name = "l00289" > < / a > < span class = "lineno" > 289< / span > enforcement_literals[new_size++] = l;< / div >
< div class = "line" > < a id = "l00290" name = "l00290" > < / a > < span class = "lineno" > 290< / span > }< / div >
< div class = "line" > < a id = "l00291" name = "l00291" > < / a > < span class = "lineno" > 291< / span > enforcement_literals.resize(new_size);< / div >
< div class = "line" > < a id = "l00292" name = "l00292" > < / a > < span class = "lineno" > 292< / span > }< / div >
< div class = "line" > < a id = "l00293" name = "l00293" > < / a > < span class = "lineno" > 293< / span > < / div >
< div class = "line" > < a id = "l00294" name = "l00294" > < / a > < span class = "lineno" > 294< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > == < a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > ) {< / div >
< div class = "line" > < a id = "l00295" name = "l00295" > < / a > < span class = "lineno" > 295< / span > < span class = "comment" > // A self-arc is either plain SAT or plain UNSAT or it forces something on< / span > < / div >
< div class = "line" > < a id = "l00296" name = "l00296" > < / a > < span class = "lineno" > 296< / span > < span class = "comment" > // the given offset_var or presence_literal_index. In any case it could be< / span > < / div >
< div class = "line" > < a id = "l00297" name = "l00297" > < / a > < span class = "lineno" > 297< / span > < span class = "comment" > // presolved in something more efficient.< / span > < / div >
< div class = "line" > < a id = "l00298" name = "l00298" > < / a > < span class = "lineno" > 298< / span > < a class = "code hl_define" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Self arc! This could be presolved. " < / span > < / div >
< div class = "line" > < a id = "l00299" name = "l00299" > < / a > < span class = "lineno" > 299< / span > < < < span class = "stringliteral" > " var:" < / span > < < < a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > < < < span class = "stringliteral" > " offset:" < / span > < < offset< / div >
< div class = "line" > < a id = "l00300" name = "l00300" > < / a > < span class = "lineno" > 300< / span > < < < span class = "stringliteral" > " offset_var:" < / span > < < offset_var< / div >
< div class = "line" > < a id = "l00301" name = "l00301" > < / a > < span class = "lineno" > 301< / span > < < < span class = "stringliteral" > " conditioned_by:" < / span > < < presence_literals;< / div >
< div class = "line" > < a id = "l00302" name = "l00302" > < / a > < span class = "lineno" > 302< / span > }< / div >
< div class = "line" > < a id = "l00303" name = "l00303" > < / a > < span class = "lineno" > 303< / span > < / div >
< div class = "line" > < a id = "l00304" name = "l00304" > < / a > < span class = "lineno" > 304< / span > < span class = "comment" > // Remove the offset_var if it is fixed.< / span > < / div >
< div class = "line" > < a id = "l00305" name = "l00305" > < / a > < span class = "lineno" > 305< / span > < span class = "comment" > // TODO(user): We should also handle the case where tail or head is fixed.< / span > < / div >
< div class = "line" > < a id = "l00306" name = "l00306" > < / a > < span class = "lineno" > 306< / span > < span class = "keywordflow" > if< / span > (offset_var != < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > ) {< / div >
< div class = "line" > < a id = "l00307" name = "l00307" > < / a > < span class = "lineno" > 307< / span > < span class = "keyword" > const< / span > IntegerValue lb = integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9" > LowerBound< / a > (offset_var);< / div >
< div class = "line" > < a id = "l00308" name = "l00308" > < / a > < span class = "lineno" > 308< / span > < span class = "keywordflow" > if< / span > (lb == integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac" > UpperBound< / a > (offset_var)) {< / div >
< div class = "line" > < a id = "l00309" name = "l00309" > < / a > < span class = "lineno" > 309< / span > offset += lb;< / div >
< div class = "line" > < a id = "l00310" name = "l00310" > < / a > < span class = "lineno" > 310< / span > offset_var = < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > ;< / div >
2022-01-17 21:42:14 +01:00
< div class = "line" > < a id = "l00311" name = "l00311" > < / a > < span class = "lineno" > 311< / span > }< / div >
< div class = "line" > < a id = "l00312" name = "l00312" > < / a > < span class = "lineno" > 312< / span > }< / div >
< div class = "line" > < a id = "l00313" name = "l00313" > < / a > < span class = "lineno" > 313< / span > < / div >
2022-03-04 00:11:33 +01:00
< div class = "line" > < a id = "l00314" name = "l00314" > < / a > < span class = "lineno" > 314< / span > < span class = "comment" > // Deal first with impacted_potential_arcs_/potential_arcs_.< / span > < / div >
< div class = "line" > < a id = "l00315" name = "l00315" > < / a > < span class = "lineno" > 315< / span > < span class = "keywordflow" > if< / span > (!enforcement_literals.empty()) {< / div >
< div class = "line" > < a id = "l00316" name = "l00316" > < / a > < span class = "lineno" > 316< / span > < span class = "keyword" > const< / span > OptionalArcIndex arc_index(potential_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ());< / div >
< div class = "line" > < a id = "l00317" name = "l00317" > < / a > < span class = "lineno" > 317< / span > potential_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (< / div >
< div class = "line" > < a id = "l00318" name = "l00318" > < / a > < span class = "lineno" > 318< / span > {< a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > , < a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > , offset, offset_var, enforcement_literals});< / div >
< div class = "line" > < a id = "l00319" name = "l00319" > < / a > < span class = "lineno" > 319< / span > impacted_potential_arcs_[< a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > ].< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (arc_index);< / div >
< div class = "line" > < a id = "l00320" name = "l00320" > < / a > < span class = "lineno" > 320< / span > impacted_potential_arcs_[< a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22" > NegationOf< / a > (< a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > )].< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (arc_index);< / div >
< div class = "line" > < a id = "l00321" name = "l00321" > < / a > < span class = "lineno" > 321< / span > < span class = "keywordflow" > if< / span > (offset_var != < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > ) {< / div >
< div class = "line" > < a id = "l00322" name = "l00322" > < / a > < span class = "lineno" > 322< / span > impacted_potential_arcs_[offset_var].< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (arc_index);< / div >
< div class = "line" > < a id = "l00323" name = "l00323" > < / a > < span class = "lineno" > 323< / span > }< / div >
< div class = "line" > < a id = "l00324" name = "l00324" > < / a > < span class = "lineno" > 324< / span > }< / div >
< div class = "line" > < a id = "l00325" name = "l00325" > < / a > < span class = "lineno" > 325< / span > < / div >
< div class = "line" > < a id = "l00326" name = "l00326" > < / a > < span class = "lineno" > 326< / span > < span class = "comment" > // Now deal with impacted_arcs_/arcs_.< / span > < / div >
< div class = "line" > < a id = "l00327" name = "l00327" > < / a > < span class = "lineno" > 327< / span > < span class = "keyword" > struct < / span > InternalArc {< / div >
< div class = "line" > < a id = "l00328" name = "l00328" > < / a > < span class = "lineno" > 328< / span > IntegerVariable tail_var;< / div >
< div class = "line" > < a id = "l00329" name = "l00329" > < / a > < span class = "lineno" > 329< / span > IntegerVariable head_var;< / div >
< div class = "line" > < a id = "l00330" name = "l00330" > < / a > < span class = "lineno" > 330< / span > IntegerVariable offset_var;< / div >
< div class = "line" > < a id = "l00331" name = "l00331" > < / a > < span class = "lineno" > 331< / span > };< / div >
< div class = "line" > < a id = "l00332" name = "l00332" > < / a > < span class = "lineno" > 332< / span > std::vector< InternalArc> to_add;< / div >
< div class = "line" > < a id = "l00333" name = "l00333" > < / a > < span class = "lineno" > 333< / span > < span class = "keywordflow" > if< / span > (offset_var == < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > ) {< / div >
< div class = "line" > < a id = "l00334" name = "l00334" > < / a > < span class = "lineno" > 334< / span > < span class = "comment" > // a + offset < = b and -b + offset < = -a< / span > < / div >
< div class = "line" > < a id = "l00335" name = "l00335" > < / a > < span class = "lineno" > 335< / span > to_add.push_back({< a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > , < a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > , < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > });< / div >
< div class = "line" > < a id = "l00336" name = "l00336" > < / a > < span class = "lineno" > 336< / span > to_add.push_back({< a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22" > NegationOf< / a > (< a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > ), < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22" > NegationOf< / a > (< a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > ), < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > });< / div >
< div class = "line" > < a id = "l00337" name = "l00337" > < / a > < span class = "lineno" > 337< / span > } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a id = "l00338" name = "l00338" > < / a > < span class = "lineno" > 338< / span > < span class = "comment" > // tail (a) and offset_var (b) are symmetric, so we add:< / span > < / div >
< div class = "line" > < a id = "l00339" name = "l00339" > < / a > < span class = "lineno" > 339< / span > < span class = "comment" > // - a + b + offset < = c< / span > < / div >
< div class = "line" > < a id = "l00340" name = "l00340" > < / a > < span class = "lineno" > 340< / span > to_add.push_back({< a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > , < a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > , offset_var});< / div >
< div class = "line" > < a id = "l00341" name = "l00341" > < / a > < span class = "lineno" > 341< / span > to_add.push_back({offset_var, < a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > , < a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > });< / div >
< div class = "line" > < a id = "l00342" name = "l00342" > < / a > < span class = "lineno" > 342< / span > < span class = "comment" > // - a - c + offset < = -b< / span > < / div >
< div class = "line" > < a id = "l00343" name = "l00343" > < / a > < span class = "lineno" > 343< / span > to_add.push_back({< a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > , < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22" > NegationOf< / a > (offset_var), < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22" > NegationOf< / a > (< a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > )});< / div >
< div class = "line" > < a id = "l00344" name = "l00344" > < / a > < span class = "lineno" > 344< / span > to_add.push_back({< a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22" > NegationOf< / a > (< a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > ), < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22" > NegationOf< / a > (offset_var), < a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > });< / div >
< div class = "line" > < a id = "l00345" name = "l00345" > < / a > < span class = "lineno" > 345< / span > < span class = "comment" > // - b - c + offset < = -a< / span > < / div >
< div class = "line" > < a id = "l00346" name = "l00346" > < / a > < span class = "lineno" > 346< / span > to_add.push_back({offset_var, < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22" > NegationOf< / a > (< a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > ), < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22" > NegationOf< / a > (< a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > )});< / div >
< div class = "line" > < a id = "l00347" name = "l00347" > < / a > < span class = "lineno" > 347< / span > to_add.push_back({< a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22" > NegationOf< / a > (< a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > ), < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22" > NegationOf< / a > (< a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > ), offset_var});< / div >
< div class = "line" > < a id = "l00348" name = "l00348" > < / a > < span class = "lineno" > 348< / span > }< / div >
< div class = "line" > < a id = "l00349" name = "l00349" > < / a > < span class = "lineno" > 349< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > InternalArc < a class = "code hl_variable" href = "constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6" > a< / a > : to_add) {< / div >
< div class = "line" > < a id = "l00350" name = "l00350" > < / a > < span class = "lineno" > 350< / span > < span class = "comment" > // Since we add a new arc, we will need to consider its tail during the next< / span > < / div >
< div class = "line" > < a id = "l00351" name = "l00351" > < / a > < span class = "lineno" > 351< / span > < span class = "comment" > // propagation. Note that the size of modified_vars_ will be automatically< / span > < / div >
< div class = "line" > < a id = "l00352" name = "l00352" > < / a > < span class = "lineno" > 352< / span > < span class = "comment" > // updated when new integer variables are created since we register it with< / span > < / div >
< div class = "line" > < a id = "l00353" name = "l00353" > < / a > < span class = "lineno" > 353< / span > < span class = "comment" > // IntegerTrail in this class constructor.< / span > < / div >
< div class = "line" > < a id = "l00354" name = "l00354" > < / a > < span class = "lineno" > 354< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00355" name = "l00355" > < / a > < span class = "lineno" > 355< / span > < span class = "comment" > // TODO(user): Adding arcs and then calling Untrail() before Propagate()< / span > < / div >
< div class = "line" > < a id = "l00356" name = "l00356" > < / a > < span class = "lineno" > 356< / span > < span class = "comment" > // will cause this mecanism to break. Find a more robust implementation.< / span > < / div >
< div class = "line" > < a id = "l00357" name = "l00357" > < / a > < span class = "lineno" > 357< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00358" name = "l00358" > < / a > < span class = "lineno" > 358< / span > < span class = "comment" > // TODO(user): In some rare corner case, rescanning the whole list of arc< / span > < / div >
< div class = "line" > < a id = "l00359" name = "l00359" > < / a > < span class = "lineno" > 359< / span > < span class = "comment" > // leaving tail_var can make AddVar() have a quadratic complexity where it< / span > < / div >
< div class = "line" > < a id = "l00360" name = "l00360" > < / a > < span class = "lineno" > 360< / span > < span class = "comment" > // shouldn' t. A better solution would be to see if this new arc currently< / span > < / div >
< div class = "line" > < a id = "l00361" name = "l00361" > < / a > < span class = "lineno" > 361< / span > < span class = "comment" > // propagate something, and if it does, just update the lower bound of< / span > < / div >
< div class = "line" > < a id = "l00362" name = "l00362" > < / a > < span class = "lineno" > 362< / span > < span class = "comment" > // a.head_var and let the normal " is modified" mecanism handle any eventual< / span > < / div >
< div class = "line" > < a id = "l00363" name = "l00363" > < / a > < span class = "lineno" > 363< / span > < span class = "comment" > // follow up propagations.< / span > < / div >
< div class = "line" > < a id = "l00364" name = "l00364" > < / a > < span class = "lineno" > 364< / span > modified_vars_.< a class = "code hl_function" href = "classoperations__research_1_1_sparse_bitset.html#a41f798a04019147982b29c576ff9d8b7" > Set< / a > (< a class = "code hl_variable" href = "constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6" > a< / a > .tail_var);< / div >
< div class = "line" > < a id = "l00365" name = "l00365" > < / a > < span class = "lineno" > 365< / span > < / div >
< div class = "line" > < a id = "l00366" name = "l00366" > < / a > < span class = "lineno" > 366< / span > < span class = "comment" > // If a.head_var is optional, we can potentially remove some literal from< / span > < / div >
< div class = "line" > < a id = "l00367" name = "l00367" > < / a > < span class = "lineno" > 367< / span > < span class = "comment" > // enforcement_literals.< / span > < / div >
< div class = "line" > < a id = "l00368" name = "l00368" > < / a > < span class = "lineno" > 368< / span > < span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > arc_index(arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ());< / div >
< div class = "line" > < a id = "l00369" name = "l00369" > < / a > < span class = "lineno" > 369< / span > arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (< / div >
< div class = "line" > < a id = "l00370" name = "l00370" > < / a > < span class = "lineno" > 370< / span > {< a class = "code hl_variable" href = "constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6" > a< / a > .tail_var, < a class = "code hl_variable" href = "constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6" > a< / a > .head_var, offset, < a class = "code hl_variable" href = "constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6" > a< / a > .offset_var, enforcement_literals});< / div >
< div class = "line" > < a id = "l00371" name = "l00371" > < / a > < span class = "lineno" > 371< / span > < span class = "keyword" > auto< / span > & presence_literals = arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#af71e6c1eccbc12e9339c00a86a981a43" > back< / a > ().presence_literals;< / div >
< div class = "line" > < a id = "l00372" name = "l00372" > < / a > < span class = "lineno" > 372< / span > < span class = "keywordflow" > if< / span > (integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#acc1aaae243ed4381e84f8309aacb3bbc" > IsOptional< / a > (< a class = "code hl_variable" href = "constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6" > a< / a > .head_var)) {< / div >
< div class = "line" > < a id = "l00373" name = "l00373" > < / a > < span class = "lineno" > 373< / span > < span class = "comment" > // TODO(user): More generally, we can remove any literal that is implied< / span > < / div >
< div class = "line" > < a id = "l00374" name = "l00374" > < / a > < span class = "lineno" > 374< / span > < span class = "comment" > // by to_remove.< / span > < / div >
< div class = "line" > < a id = "l00375" name = "l00375" > < / a > < span class = "lineno" > 375< / span > < span class = "keyword" > const< / span > Literal to_remove =< / div >
< div class = "line" > < a id = "l00376" name = "l00376" > < / a > < span class = "lineno" > 376< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ac8db20a5dab063aa3ca64a4ae1202d4c" > IsIgnoredLiteral< / a > (< a class = "code hl_variable" href = "constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6" > a< / a > .head_var).< a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644" > Negated< / a > ();< / div >
< div class = "line" > < a id = "l00377" name = "l00377" > < / a > < span class = "lineno" > 377< / span > < span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > it = std::find(presence_literals.begin(),< / div >
< div class = "line" > < a id = "l00378" name = "l00378" > < / a > < span class = "lineno" > 378< / span > presence_literals.end(), to_remove);< / div >
< div class = "line" > < a id = "l00379" name = "l00379" > < / a > < span class = "lineno" > 379< / span > < span class = "keywordflow" > if< / span > (it != presence_literals.end()) presence_literals.erase(it);< / div >
< div class = "line" > < a id = "l00380" name = "l00380" > < / a > < span class = "lineno" > 380< / span > }< / div >
< div class = "line" > < a id = "l00381" name = "l00381" > < / a > < span class = "lineno" > 381< / span > < / div >
< div class = "line" > < a id = "l00382" name = "l00382" > < / a > < span class = "lineno" > 382< / span > < span class = "keywordflow" > if< / span > (presence_literals.empty()) {< / div >
< div class = "line" > < a id = "l00383" name = "l00383" > < / a > < span class = "lineno" > 383< / span > impacted_arcs_[< a class = "code hl_variable" href = "constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6" > a< / a > .tail_var].< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (arc_index);< / div >
< div class = "line" > < a id = "l00384" name = "l00384" > < / a > < span class = "lineno" > 384< / span > } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a id = "l00385" name = "l00385" > < / a > < span class = "lineno" > 385< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > Literal l : presence_literals) {< / div >
< div class = "line" > < a id = "l00386" name = "l00386" > < / a > < span class = "lineno" > 386< / span > < span class = "keywordflow" > if< / span > (l.Index() > = literal_to_new_impacted_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ()) {< / div >
< div class = "line" > < a id = "l00387" name = "l00387" > < / a > < span class = "lineno" > 387< / span > literal_to_new_impacted_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (l.Index().value() + 1);< / div >
< div class = "line" > < a id = "l00388" name = "l00388" > < / a > < span class = "lineno" > 388< / span > }< / div >
< div class = "line" > < a id = "l00389" name = "l00389" > < / a > < span class = "lineno" > 389< / span > literal_to_new_impacted_arcs_[l.Index()].< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (arc_index);< / div >
< div class = "line" > < a id = "l00390" name = "l00390" > < / a > < span class = "lineno" > 390< / span > }< / div >
< div class = "line" > < a id = "l00391" name = "l00391" > < / a > < span class = "lineno" > 391< / span > }< / div >
< div class = "line" > < a id = "l00392" name = "l00392" > < / a > < span class = "lineno" > 392< / span > arc_counts_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (presence_literals.size());< / div >
< div class = "line" > < a id = "l00393" name = "l00393" > < / a > < span class = "lineno" > 393< / span > }< / div >
< div class = "line" > < a id = "l00394" name = "l00394" > < / a > < span class = "lineno" > 394< / span > }< / div >
< div class = "line" > < a id = "l00395" name = "l00395" > < / a > < span class = "lineno" > 395< / span > < / div >
< div class = "line" > < a id = "l00396" name = "l00396" > < / a > < span class = "lineno" > 396< / span > < span class = "comment" > // TODO(user): On jobshop problems with a lot of tasks per machine (500), this< / span > < / div >
< div class = "line" > < a id = "l00397" name = "l00397" > < / a > < span class = "lineno" > 397< / span > < span class = "comment" > // takes up a big chunck of the running time even before we find a solution.< / span > < / div >
< div class = "line" > < a id = "l00398" name = "l00398" > < / a > < span class = "lineno" > 398< / span > < span class = "comment" > // This is because, for each lower bound changed, we inspect 500 arcs even< / span > < / div >
< div class = "line" > < a id = "l00399" name = "l00399" > < / a > < span class = "lineno" > 399< / span > < span class = "comment" > // though they will never be propagated because the other bound is still at the< / span > < / div >
< div class = "line" > < a id = "l00400" name = "l00400" > < / a > < span class = "lineno" > 400< / span > < span class = "comment" > // horizon. Find an even sparser algorithm?< / span > < / div >
< div class = "line" > < a id = "l00401" name = "l00401" > < / a > < span class = "lineno" > 401< / span > < span class = "keywordtype" > void< / span > PrecedencesPropagator::PropagateOptionalArcs(Trail* trail) {< / div >
< div class = "line" > < a id = "l00402" name = "l00402" > < / a > < span class = "lineno" > 402< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > IntegerVariable < a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > : modified_vars_.< a class = "code hl_function" href = "classoperations__research_1_1_sparse_bitset.html#a7187b794b93178bdf96f632d1f5d8c03" > PositionsSetAtLeastOnce< / a > ()) {< / div >
< div class = "line" > < a id = "l00403" name = "l00403" > < / a > < span class = "lineno" > 403< / span > < span class = "comment" > // The variables are not in increasing order, so we need to continue.< / span > < / div >
< div class = "line" > < a id = "l00404" name = "l00404" > < / a > < span class = "lineno" > 404< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > > = impacted_potential_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ()) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00405" name = "l00405" > < / a > < span class = "lineno" > 405< / span > < / div >
< div class = "line" > < a id = "l00406" name = "l00406" > < / a > < span class = "lineno" > 406< / span > < span class = "comment" > // Note that we can currently check the same ArcInfo up to 3 times, one for< / span > < / div >
< div class = "line" > < a id = "l00407" name = "l00407" > < / a > < span class = "lineno" > 407< / span > < span class = "comment" > // each of the arc variables: tail, NegationOf(head) and offset_var.< / span > < / div >
< div class = "line" > < a id = "l00408" name = "l00408" > < / a > < span class = "lineno" > 408< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > OptionalArcIndex arc_index : impacted_potential_arcs_[< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]) {< / div >
< div class = "line" > < a id = "l00409" name = "l00409" > < / a > < span class = "lineno" > 409< / span > < span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > = potential_arcs_[arc_index];< / div >
< div class = "line" > < a id = "l00410" name = "l00410" > < / a > < span class = "lineno" > 410< / span > < span class = "keywordtype" > int< / span > num_not_true = 0;< / div >
< div class = "line" > < a id = "l00411" name = "l00411" > < / a > < span class = "lineno" > 411< / span > Literal to_propagate;< / div >
< div class = "line" > < a id = "l00412" name = "l00412" > < / a > < span class = "lineno" > 412< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > Literal l : < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .presence_literals) {< / div >
< div class = "line" > < a id = "l00413" name = "l00413" > < / a > < span class = "lineno" > 413< / span > < span class = "keywordflow" > if< / span > (!trail-> Assignment().LiteralIsTrue(l)) {< / div >
< div class = "line" > < a id = "l00414" name = "l00414" > < / a > < span class = "lineno" > 414< / span > ++num_not_true;< / div >
< div class = "line" > < a id = "l00415" name = "l00415" > < / a > < span class = "lineno" > 415< / span > to_propagate = l;< / div >
< div class = "line" > < a id = "l00416" name = "l00416" > < / a > < span class = "lineno" > 416< / span > }< / div >
< div class = "line" > < a id = "l00417" name = "l00417" > < / a > < span class = "lineno" > 417< / span > }< / div >
< div class = "line" > < a id = "l00418" name = "l00418" > < / a > < span class = "lineno" > 418< / span > < span class = "keywordflow" > if< / span > (num_not_true != 1) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00419" name = "l00419" > < / a > < span class = "lineno" > 419< / span > < span class = "keywordflow" > if< / span > (trail-> Assignment().LiteralIsFalse(to_propagate)) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00420" name = "l00420" > < / a > < span class = "lineno" > 420< / span > < / div >
< div class = "line" > < a id = "l00421" name = "l00421" > < / a > < span class = "lineno" > 421< / span > < span class = "comment" > // Test if this arc can be present or not.< / span > < / div >
< div class = "line" > < a id = "l00422" name = "l00422" > < / a > < span class = "lineno" > 422< / span > < span class = "comment" > // Important arc.tail_var can be different from var here.< / span > < / div >
< div class = "line" > < a id = "l00423" name = "l00423" > < / a > < span class = "lineno" > 423< / span > < span class = "keyword" > const< / span > IntegerValue tail_lb = integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9" > LowerBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .tail_var);< / div >
< div class = "line" > < a id = "l00424" name = "l00424" > < / a > < span class = "lineno" > 424< / span > < span class = "keyword" > const< / span > IntegerValue head_ub = integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac" > UpperBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var);< / div >
< div class = "line" > < a id = "l00425" name = "l00425" > < / a > < span class = "lineno" > 425< / span > < span class = "keywordflow" > if< / span > (tail_lb + ArcOffset(< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > ) > head_ub) {< / div >
< div class = "line" > < a id = "l00426" name = "l00426" > < / a > < span class = "lineno" > 426< / span > integer_reason_.clear();< / div >
< div class = "line" > < a id = "l00427" name = "l00427" > < / a > < span class = "lineno" > 427< / span > integer_reason_.push_back(< / div >
< div class = "line" > < a id = "l00428" name = "l00428" > < / a > < span class = "lineno" > 428< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a615d87982145007855f2102262cf773c" > LowerBoundAsLiteral< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .tail_var));< / div >
< div class = "line" > < a id = "l00429" name = "l00429" > < / a > < span class = "lineno" > 429< / span > integer_reason_.push_back(< / div >
< div class = "line" > < a id = "l00430" name = "l00430" > < / a > < span class = "lineno" > 430< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ac0a2e8c6619af74b42472bfa9a9e6465" > UpperBoundAsLiteral< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var));< / div >
< div class = "line" > < a id = "l00431" name = "l00431" > < / a > < span class = "lineno" > 431< / span > AppendLowerBoundReasonIfValid(< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .offset_var, *integer_trail_,< / div >
< div class = "line" > < a id = "l00432" name = "l00432" > < / a > < span class = "lineno" > 432< / span > & integer_reason_);< / div >
< div class = "line" > < a id = "l00433" name = "l00433" > < / a > < span class = "lineno" > 433< / span > literal_reason_.clear();< / div >
< div class = "line" > < a id = "l00434" name = "l00434" > < / a > < span class = "lineno" > 434< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > Literal l : < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .presence_literals) {< / div >
< div class = "line" > < a id = "l00435" name = "l00435" > < / a > < span class = "lineno" > 435< / span > < span class = "keywordflow" > if< / span > (l != to_propagate) literal_reason_.push_back(l.Negated());< / div >
< div class = "line" > < a id = "l00436" name = "l00436" > < / a > < span class = "lineno" > 436< / span > }< / div >
< div class = "line" > < a id = "l00437" name = "l00437" > < / a > < span class = "lineno" > 437< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a79322fd8dff49ab2eab22c0570aba594" > EnqueueLiteral< / a > (to_propagate.Negated(), literal_reason_,< / div >
< div class = "line" > < a id = "l00438" name = "l00438" > < / a > < span class = "lineno" > 438< / span > integer_reason_);< / div >
< div class = "line" > < a id = "l00439" name = "l00439" > < / a > < span class = "lineno" > 439< / span > }< / div >
< div class = "line" > < a id = "l00440" name = "l00440" > < / a > < span class = "lineno" > 440< / span > }< / div >
< div class = "line" > < a id = "l00441" name = "l00441" > < / a > < span class = "lineno" > 441< / span > }< / div >
< div class = "line" > < a id = "l00442" name = "l00442" > < / a > < span class = "lineno" > 442< / span > }< / div >
< div class = "line" > < a id = "l00443" name = "l00443" > < / a > < span class = "lineno" > 443< / span > < / div >
< div class = "line" > < a id = "l00444" name = "l00444" > < / a > < span class = "lineno" > 444< / span > IntegerValue PrecedencesPropagator::ArcOffset(< span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > )< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a id = "l00445" name = "l00445" > < / a > < span class = "lineno" > 445< / span > < span class = "keywordflow" > return< / span > < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .offset + (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .offset_var == < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > < / div >
< div class = "line" > < a id = "l00446" name = "l00446" > < / a > < span class = "lineno" > 446< / span > ? IntegerValue(0)< / div >
< div class = "line" > < a id = "l00447" name = "l00447" > < / a > < span class = "lineno" > 447< / span > : integer_trail_-> < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a3ad49ae9019c528851f6fd084479a567" > LowerBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .offset_var));< / div >
< div class = "line" > < a id = "l00448" name = "l00448" > < / a > < span class = "lineno" > 448< / span > }< / div >
< div class = "line" > < a id = "l00449" name = "l00449" > < / a > < span class = "lineno" > 449< / span > < / div >
< div class = "line" > < a id = "l00450" name = "l00450" > < / a > < span class = "lineno" > 450< / span > < span class = "keywordtype" > bool< / span > PrecedencesPropagator::EnqueueAndCheck(< span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > ,< / div >
< div class = "line" > < a id = "l00451" name = "l00451" > < / a > < span class = "lineno" > 451< / span > IntegerValue new_head_lb,< / div >
< div class = "line" > < a id = "l00452" name = "l00452" > < / a > < span class = "lineno" > 452< / span > Trail* trail) {< / div >
< div class = "line" > < a id = "l00453" name = "l00453" > < / a > < span class = "lineno" > 453< / span > < a class = "code hl_define" href = "base_2logging_8h.html#ab4f56aa24c4c9cddc47a6abd2d747f9a" > DCHECK_GT< / a > (new_head_lb, integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9" > LowerBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var));< / div >
< div class = "line" > < a id = "l00454" name = "l00454" > < / a > < span class = "lineno" > 454< / span > < / div >
< div class = "line" > < a id = "l00455" name = "l00455" > < / a > < span class = "lineno" > 455< / span > < span class = "comment" > // Compute the reason for new_head_lb.< / span > < / div >
< div class = "line" > < a id = "l00456" name = "l00456" > < / a > < span class = "lineno" > 456< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00457" name = "l00457" > < / a > < span class = "lineno" > 457< / span > < span class = "comment" > // TODO(user): do like for clause and keep the negation of< / span > < / div >
< div class = "line" > < a id = "l00458" name = "l00458" > < / a > < span class = "lineno" > 458< / span > < span class = "comment" > // arc.presence_literals? I think we could change the integer.h API to accept< / span > < / div >
< div class = "line" > < a id = "l00459" name = "l00459" > < / a > < span class = "lineno" > 459< / span > < span class = "comment" > // true literal like for IntegerVariable, it is really confusing currently.< / span > < / div >
< div class = "line" > < a id = "l00460" name = "l00460" > < / a > < span class = "lineno" > 460< / span > literal_reason_.clear();< / div >
< div class = "line" > < a id = "l00461" name = "l00461" > < / a > < span class = "lineno" > 461< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > Literal l : < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .presence_literals) {< / div >
< div class = "line" > < a id = "l00462" name = "l00462" > < / a > < span class = "lineno" > 462< / span > literal_reason_.push_back(l.Negated());< / div >
< div class = "line" > < a id = "l00463" name = "l00463" > < / a > < span class = "lineno" > 463< / span > }< / div >
< div class = "line" > < a id = "l00464" name = "l00464" > < / a > < span class = "lineno" > 464< / span > < / div >
< div class = "line" > < a id = "l00465" name = "l00465" > < / a > < span class = "lineno" > 465< / span > integer_reason_.clear();< / div >
< div class = "line" > < a id = "l00466" name = "l00466" > < / a > < span class = "lineno" > 466< / span > integer_reason_.push_back(integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a615d87982145007855f2102262cf773c" > LowerBoundAsLiteral< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .tail_var));< / div >
< div class = "line" > < a id = "l00467" name = "l00467" > < / a > < span class = "lineno" > 467< / span > AppendLowerBoundReasonIfValid(< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .offset_var, *integer_trail_,< / div >
< div class = "line" > < a id = "l00468" name = "l00468" > < / a > < span class = "lineno" > 468< / span > & integer_reason_);< / div >
< div class = "line" > < a id = "l00469" name = "l00469" > < / a > < span class = "lineno" > 469< / span > < / div >
< div class = "line" > < a id = "l00470" name = "l00470" > < / a > < span class = "lineno" > 470< / span > < span class = "comment" > // The code works without this block since Enqueue() below can already take< / span > < / div >
< div class = "line" > < a id = "l00471" name = "l00471" > < / a > < span class = "lineno" > 471< / span > < span class = "comment" > // care of conflicts. However, it is better to deal with the conflict< / span > < / div >
< div class = "line" > < a id = "l00472" name = "l00472" > < / a > < span class = "lineno" > 472< / span > < span class = "comment" > // ourselves because we can be smarter about the reason this way.< / span > < / div >
< div class = "line" > < a id = "l00473" name = "l00473" > < / a > < span class = "lineno" > 473< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00474" name = "l00474" > < / a > < span class = "lineno" > 474< / span > < span class = "comment" > // The reason for a " precedence" conflict is always a linear reason< / span > < / div >
< div class = "line" > < a id = "l00475" name = "l00475" > < / a > < span class = "lineno" > 475< / span > < span class = "comment" > // involving the tail lower_bound, the head upper bound and eventually the< / span > < / div >
< div class = "line" > < a id = "l00476" name = "l00476" > < / a > < span class = "lineno" > 476< / span > < span class = "comment" > // size lower bound. Because of that, we can use the RelaxLinearReason()< / span > < / div >
< div class = "line" > < a id = "l00477" name = "l00477" > < / a > < span class = "lineno" > 477< / span > < span class = "comment" > // code.< / span > < / div >
< div class = "line" > < a id = "l00478" name = "l00478" > < / a > < span class = "lineno" > 478< / span > < span class = "keywordflow" > if< / span > (new_head_lb > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac" > UpperBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var)) {< / div >
< div class = "line" > < a id = "l00479" name = "l00479" > < / a > < span class = "lineno" > 479< / span > < span class = "keyword" > const< / span > IntegerValue slack =< / div >
< div class = "line" > < a id = "l00480" name = "l00480" > < / a > < span class = "lineno" > 480< / span > new_head_lb - integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac" > UpperBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var) - 1;< / div >
< div class = "line" > < a id = "l00481" name = "l00481" > < / a > < span class = "lineno" > 481< / span > integer_reason_.push_back(< / div >
< div class = "line" > < a id = "l00482" name = "l00482" > < / a > < span class = "lineno" > 482< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ac0a2e8c6619af74b42472bfa9a9e6465" > UpperBoundAsLiteral< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var));< / div >
< div class = "line" > < a id = "l00483" name = "l00483" > < / a > < span class = "lineno" > 483< / span > std::vector< IntegerValue> coeffs(integer_reason_.size(), IntegerValue(1));< / div >
< div class = "line" > < a id = "l00484" name = "l00484" > < / a > < span class = "lineno" > 484< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#aa981297d0a648cd5c3fef40e2edebf8a" > RelaxLinearReason< / a > (slack, coeffs, & integer_reason_);< / div >
< div class = "line" > < a id = "l00485" name = "l00485" > < / a > < span class = "lineno" > 485< / span > < / div >
< div class = "line" > < a id = "l00486" name = "l00486" > < / a > < span class = "lineno" > 486< / span > < span class = "keywordflow" > if< / span > (!integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#acc1aaae243ed4381e84f8309aacb3bbc" > IsOptional< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var)) {< / div >
< div class = "line" > < a id = "l00487" name = "l00487" > < / a > < span class = "lineno" > 487< / span > < span class = "keywordflow" > return< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a6d55b5b9adc499095dd57dd0c2b6c7df" > ReportConflict< / a > (literal_reason_, integer_reason_);< / div >
< div class = "line" > < a id = "l00488" name = "l00488" > < / a > < span class = "lineno" > 488< / span > } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a id = "l00489" name = "l00489" > < / a > < span class = "lineno" > 489< / span > < a class = "code hl_define" href = "base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274" > CHECK< / a > (!integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a309d057e12c8d4d393f13975eea2e2a9" > IsCurrentlyIgnored< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var));< / div >
< div class = "line" > < a id = "l00490" name = "l00490" > < / a > < span class = "lineno" > 490< / span > < span class = "keyword" > const< / span > Literal l = integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ac8db20a5dab063aa3ca64a4ae1202d4c" > IsIgnoredLiteral< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var);< / div >
< div class = "line" > < a id = "l00491" name = "l00491" > < / a > < span class = "lineno" > 491< / span > < span class = "keywordflow" > if< / span > (trail-> Assignment().LiteralIsFalse(l)) {< / div >
< div class = "line" > < a id = "l00492" name = "l00492" > < / a > < span class = "lineno" > 492< / span > literal_reason_.push_back(l);< / div >
< div class = "line" > < a id = "l00493" name = "l00493" > < / a > < span class = "lineno" > 493< / span > < span class = "keywordflow" > return< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a6d55b5b9adc499095dd57dd0c2b6c7df" > ReportConflict< / a > (literal_reason_, integer_reason_);< / div >
< div class = "line" > < a id = "l00494" name = "l00494" > < / a > < span class = "lineno" > 494< / span > } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a id = "l00495" name = "l00495" > < / a > < span class = "lineno" > 495< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a79322fd8dff49ab2eab22c0570aba594" > EnqueueLiteral< / a > (l, literal_reason_, integer_reason_);< / div >
< div class = "line" > < a id = "l00496" name = "l00496" > < / a > < span class = "lineno" > 496< / span > < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00497" name = "l00497" > < / a > < span class = "lineno" > 497< / span > }< / div >
< div class = "line" > < a id = "l00498" name = "l00498" > < / a > < span class = "lineno" > 498< / span > }< / div >
< div class = "line" > < a id = "l00499" name = "l00499" > < / a > < span class = "lineno" > 499< / span > }< / div >
< div class = "line" > < a id = "l00500" name = "l00500" > < / a > < span class = "lineno" > 500< / span > < / div >
< div class = "line" > < a id = "l00501" name = "l00501" > < / a > < span class = "lineno" > 501< / span > < span class = "keywordflow" > return< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a05e837bb93eeabbbd94e8f690dd59d32" > Enqueue< / a > (< / div >
< div class = "line" > < a id = "l00502" name = "l00502" > < / a > < span class = "lineno" > 502< / span > < a class = "code hl_function" href = "structoperations__research_1_1sat_1_1_integer_literal.html#a6c233aafac25ea66d69de93a83c9be63" > IntegerLiteral::GreaterOrEqual< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var, new_head_lb),< / div >
< div class = "line" > < a id = "l00503" name = "l00503" > < / a > < span class = "lineno" > 503< / span > literal_reason_, integer_reason_);< / div >
< div class = "line" > < a id = "l00504" name = "l00504" > < / a > < span class = "lineno" > 504< / span > }< / div >
< div class = "line" > < a id = "l00505" name = "l00505" > < / a > < span class = "lineno" > 505< / span > < / div >
< div class = "line" > < a id = "l00506" name = "l00506" > < / a > < span class = "lineno" > 506< / span > < span class = "keywordtype" > bool< / span > PrecedencesPropagator::NoPropagationLeft(< span class = "keyword" > const< / span > Trail& trail)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a id = "l00507" name = "l00507" > < / a > < span class = "lineno" > 507< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > num_nodes = impacted_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ();< / div >
< div class = "line" > < a id = "l00508" name = "l00508" > < / a > < span class = "lineno" > 508< / span > < span class = "keywordflow" > for< / span > (IntegerVariable < a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > (0); < a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > < num_nodes; ++< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ) {< / div >
< div class = "line" > < a id = "l00509" name = "l00509" > < / a > < span class = "lineno" > 509< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > arc_index : impacted_arcs_[< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]) {< / div >
< div class = "line" > < a id = "l00510" name = "l00510" > < / a > < span class = "lineno" > 510< / span > < span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > = arcs_[arc_index];< / div >
< div class = "line" > < a id = "l00511" name = "l00511" > < / a > < span class = "lineno" > 511< / span > < span class = "keywordflow" > if< / span > (integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a309d057e12c8d4d393f13975eea2e2a9" > IsCurrentlyIgnored< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var)) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00512" name = "l00512" > < / a > < span class = "lineno" > 512< / span > < span class = "keywordflow" > if< / span > (integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9" > LowerBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .tail_var) + ArcOffset(< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > ) > < / div >
< div class = "line" > < a id = "l00513" name = "l00513" > < / a > < span class = "lineno" > 513< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9" > LowerBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var)) {< / div >
< div class = "line" > < a id = "l00514" name = "l00514" > < / a > < span class = "lineno" > 514< / span > < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00515" name = "l00515" > < / a > < span class = "lineno" > 515< / span > }< / div >
< div class = "line" > < a id = "l00516" name = "l00516" > < / a > < span class = "lineno" > 516< / span > }< / div >
< div class = "line" > < a id = "l00517" name = "l00517" > < / a > < span class = "lineno" > 517< / span > }< / div >
< div class = "line" > < a id = "l00518" name = "l00518" > < / a > < span class = "lineno" > 518< / span > < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00519" name = "l00519" > < / a > < span class = "lineno" > 519< / span > }< / div >
< div class = "line" > < a id = "l00520" name = "l00520" > < / a > < span class = "lineno" > 520< / span > < / div >
< div class = "line" > < a id = "l00521" name = "l00521" > < / a > < span class = "lineno" > 521< / span > < span class = "keywordtype" > void< / span > PrecedencesPropagator::InitializeBFQueueWithModifiedNodes() {< / div >
< div class = "line" > < a id = "l00522" name = "l00522" > < / a > < span class = "lineno" > 522< / span > < span class = "comment" > // Sparse clear of the queue. TODO(user): only use the sparse version if< / span > < / div >
< div class = "line" > < a id = "l00523" name = "l00523" > < / a > < span class = "lineno" > 523< / span > < span class = "comment" > // queue.size() is small or use SparseBitset.< / span > < / div >
< div class = "line" > < a id = "l00524" name = "l00524" > < / a > < span class = "lineno" > 524< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > num_nodes = impacted_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ();< / div >
< div class = "line" > < a id = "l00525" name = "l00525" > < / a > < span class = "lineno" > 525< / span > bf_in_queue_.resize(num_nodes, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a id = "l00526" name = "l00526" > < / a > < span class = "lineno" > 526< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > node : bf_queue_) bf_in_queue_[node] = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00527" name = "l00527" > < / a > < span class = "lineno" > 527< / span > bf_queue_.clear();< / div >
< div class = "line" > < a id = "l00528" name = "l00528" > < / a > < span class = "lineno" > 528< / span > < a class = "code hl_define" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (std::none_of(bf_in_queue_.begin(), bf_in_queue_.end(),< / div >
< div class = "line" > < a id = "l00529" name = "l00529" > < / a > < span class = "lineno" > 529< / span > [](< span class = "keywordtype" > bool< / span > v) { return v; }));< / div >
< div class = "line" > < a id = "l00530" name = "l00530" > < / a > < span class = "lineno" > 530< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > IntegerVariable < a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > : modified_vars_.< a class = "code hl_function" href = "classoperations__research_1_1_sparse_bitset.html#a7187b794b93178bdf96f632d1f5d8c03" > PositionsSetAtLeastOnce< / a > ()) {< / div >
< div class = "line" > < a id = "l00531" name = "l00531" > < / a > < span class = "lineno" > 531< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > > = num_nodes) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00532" name = "l00532" > < / a > < span class = "lineno" > 532< / span > bf_queue_.push_back(< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > .value());< / div >
< div class = "line" > < a id = "l00533" name = "l00533" > < / a > < span class = "lineno" > 533< / span > bf_in_queue_[< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > .value()] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00534" name = "l00534" > < / a > < span class = "lineno" > 534< / span > }< / div >
< div class = "line" > < a id = "l00535" name = "l00535" > < / a > < span class = "lineno" > 535< / span > }< / div >
< div class = "line" > < a id = "l00536" name = "l00536" > < / a > < span class = "lineno" > 536< / span > < / div >
< div class = "line" > < a id = "l00537" name = "l00537" > < / a > < span class = "lineno" > 537< / span > < span class = "keywordtype" > void< / span > PrecedencesPropagator::CleanUpMarkedArcsAndParents() {< / div >
< div class = "line" > < a id = "l00538" name = "l00538" > < / a > < span class = "lineno" > 538< / span > < span class = "comment" > // To be sparse, we use the fact that each node with a parent must be in< / span > < / div >
< div class = "line" > < a id = "l00539" name = "l00539" > < / a > < span class = "lineno" > 539< / span > < span class = "comment" > // modified_vars_.< / span > < / div >
< div class = "line" > < a id = "l00540" name = "l00540" > < / a > < span class = "lineno" > 540< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > num_nodes = impacted_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ();< / div >
< div class = "line" > < a id = "l00541" name = "l00541" > < / a > < span class = "lineno" > 541< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > IntegerVariable < a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > : modified_vars_.< a class = "code hl_function" href = "classoperations__research_1_1_sparse_bitset.html#a7187b794b93178bdf96f632d1f5d8c03" > PositionsSetAtLeastOnce< / a > ()) {< / div >
< div class = "line" > < a id = "l00542" name = "l00542" > < / a > < span class = "lineno" > 542< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > > = num_nodes) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00543" name = "l00543" > < / a > < span class = "lineno" > 543< / span > < span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > parent_arc_index = bf_parent_arc_of_[< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > .value()];< / div >
< div class = "line" > < a id = "l00544" name = "l00544" > < / a > < span class = "lineno" > 544< / span > < span class = "keywordflow" > if< / span > (parent_arc_index != -1) {< / div >
< div class = "line" > < a id = "l00545" name = "l00545" > < / a > < span class = "lineno" > 545< / span > arcs_[parent_arc_index].is_marked = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00546" name = "l00546" > < / a > < span class = "lineno" > 546< / span > bf_parent_arc_of_[< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > .value()] = -1;< / div >
< div class = "line" > < a id = "l00547" name = "l00547" > < / a > < span class = "lineno" > 547< / span > bf_can_be_skipped_[< a class = "code hl_variable" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > .value()] = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00548" name = "l00548" > < / a > < span class = "lineno" > 548< / span > }< / div >
< div class = "line" > < a id = "l00549" name = "l00549" > < / a > < span class = "lineno" > 549< / span > }< / div >
< div class = "line" > < a id = "l00550" name = "l00550" > < / a > < span class = "lineno" > 550< / span > < a class = "code hl_define" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (std::none_of(bf_parent_arc_of_.begin(), bf_parent_arc_of_.end(),< / div >
< div class = "line" > < a id = "l00551" name = "l00551" > < / a > < span class = "lineno" > 551< / span > [](< a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > v) { return v != -1; }));< / div >
< div class = "line" > < a id = "l00552" name = "l00552" > < / a > < span class = "lineno" > 552< / span > < a class = "code hl_define" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (std::none_of(bf_can_be_skipped_.begin(), bf_can_be_skipped_.end(),< / div >
< div class = "line" > < a id = "l00553" name = "l00553" > < / a > < span class = "lineno" > 553< / span > [](< span class = "keywordtype" > bool< / span > v) { return v; }));< / div >
< div class = "line" > < a id = "l00554" name = "l00554" > < / a > < span class = "lineno" > 554< / span > }< / div >
< div class = "line" > < a id = "l00555" name = "l00555" > < / a > < span class = "lineno" > 555< / span > < / div >
< div class = "line" > < a id = "l00556" name = "l00556" > < / a > < span class = "lineno" > 556< / span > < span class = "keywordtype" > bool< / span > PrecedencesPropagator::DisassembleSubtree(< / div >
< div class = "line" > < a id = "l00557" name = "l00557" > < / a > < span class = "lineno" > 557< / span > < span class = "keywordtype" > int< / span > source, < span class = "keywordtype" > int< / span > target, std::vector< bool> * can_be_skipped) {< / div >
< div class = "line" > < a id = "l00558" name = "l00558" > < / a > < span class = "lineno" > 558< / span > < span class = "comment" > // Note that we explore a tree, so we can do it in any order, and the one< / span > < / div >
< div class = "line" > < a id = "l00559" name = "l00559" > < / a > < span class = "lineno" > 559< / span > < span class = "comment" > // below seems to be the fastest.< / span > < / div >
< div class = "line" > < a id = "l00560" name = "l00560" > < / a > < span class = "lineno" > 560< / span > tmp_vector_.clear();< / div >
< div class = "line" > < a id = "l00561" name = "l00561" > < / a > < span class = "lineno" > 561< / span > tmp_vector_.push_back(source);< / div >
< div class = "line" > < a id = "l00562" name = "l00562" > < / a > < span class = "lineno" > 562< / span > < span class = "keywordflow" > while< / span > (!tmp_vector_.empty()) {< / div >
< div class = "line" > < a id = "l00563" name = "l00563" > < / a > < span class = "lineno" > 563< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > < a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > = tmp_vector_.back();< / div >
< div class = "line" > < a id = "l00564" name = "l00564" > < / a > < span class = "lineno" > 564< / span > tmp_vector_.pop_back();< / div >
< div class = "line" > < a id = "l00565" name = "l00565" > < / a > < span class = "lineno" > 565< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > arc_index : impacted_arcs_[IntegerVariable(< a class = "code hl_variable" href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > )]) {< / div >
< div class = "line" > < a id = "l00566" name = "l00566" > < / a > < span class = "lineno" > 566< / span > < span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > = arcs_[arc_index];< / div >
< div class = "line" > < a id = "l00567" name = "l00567" > < / a > < span class = "lineno" > 567< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .is_marked) {< / div >
< div class = "line" > < a id = "l00568" name = "l00568" > < / a > < span class = "lineno" > 568< / span > < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .is_marked = < span class = "keyword" > false< / span > ; < span class = "comment" > // mutable.< / span > < / div >
< div class = "line" > < a id = "l00569" name = "l00569" > < / a > < span class = "lineno" > 569< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var.value() == target) < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00570" name = "l00570" > < / a > < span class = "lineno" > 570< / span > < a class = "code hl_define" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (!(*can_be_skipped)[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var.value()]);< / div >
< div class = "line" > < a id = "l00571" name = "l00571" > < / a > < span class = "lineno" > 571< / span > (*can_be_skipped)[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var.value()] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00572" name = "l00572" > < / a > < span class = "lineno" > 572< / span > tmp_vector_.push_back(< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var.value());< / div >
< div class = "line" > < a id = "l00573" name = "l00573" > < / a > < span class = "lineno" > 573< / span > }< / div >
< div class = "line" > < a id = "l00574" name = "l00574" > < / a > < span class = "lineno" > 574< / span > }< / div >
< div class = "line" > < a id = "l00575" name = "l00575" > < / a > < span class = "lineno" > 575< / span > }< / div >
< div class = "line" > < a id = "l00576" name = "l00576" > < / a > < span class = "lineno" > 576< / span > < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00577" name = "l00577" > < / a > < span class = "lineno" > 577< / span > }< / div >
< div class = "line" > < a id = "l00578" name = "l00578" > < / a > < span class = "lineno" > 578< / span > < / div >
< div class = "line" > < a id = "l00579" name = "l00579" > < / a > < span class = "lineno" > 579< / span > < span class = "keywordtype" > void< / span > PrecedencesPropagator::AnalyzePositiveCycle(< / div >
< div class = "line" > < a id = "l00580" name = "l00580" > < / a > < span class = "lineno" > 580< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > first_arc, Trail* trail, std::vector< Literal> * must_be_all_true,< / div >
< div class = "line" > < a id = "l00581" name = "l00581" > < / a > < span class = "lineno" > 581< / span > std::vector< Literal> * literal_reason,< / div >
< div class = "line" > < a id = "l00582" name = "l00582" > < / a > < span class = "lineno" > 582< / span > std::vector< IntegerLiteral> * integer_reason) {< / div >
< div class = "line" > < a id = "l00583" name = "l00583" > < / a > < span class = "lineno" > 583< / span > must_be_all_true-> clear();< / div >
< div class = "line" > < a id = "l00584" name = "l00584" > < / a > < span class = "lineno" > 584< / span > literal_reason-> clear();< / div >
< div class = "line" > < a id = "l00585" name = "l00585" > < / a > < span class = "lineno" > 585< / span > integer_reason-> clear();< / div >
< div class = "line" > < a id = "l00586" name = "l00586" > < / a > < span class = "lineno" > 586< / span > < / div >
< div class = "line" > < a id = "l00587" name = "l00587" > < / a > < span class = "lineno" > 587< / span > < span class = "comment" > // Follow bf_parent_arc_of_[] to find the cycle containing first_arc.< / span > < / div >
< div class = "line" > < a id = "l00588" name = "l00588" > < / a > < span class = "lineno" > 588< / span > < span class = "keyword" > const< / span > IntegerVariable first_arc_head = arcs_[first_arc].head_var;< / div >
< div class = "line" > < a id = "l00589" name = "l00589" > < / a > < span class = "lineno" > 589< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > arc_index = first_arc;< / div >
< div class = "line" > < a id = "l00590" name = "l00590" > < / a > < span class = "lineno" > 590< / span > std::vector< ArcIndex> arc_on_cycle;< / div >
< div class = "line" > < a id = "l00591" name = "l00591" > < / a > < span class = "lineno" > 591< / span > < / div >
< div class = "line" > < a id = "l00592" name = "l00592" > < / a > < span class = "lineno" > 592< / span > < span class = "comment" > // Just to be safe and avoid an infinite loop we use the fact that the maximum< / span > < / div >
< div class = "line" > < a id = "l00593" name = "l00593" > < / a > < span class = "lineno" > 593< / span > < span class = "comment" > // cycle size on a graph with n nodes is of size n. If we have more in the< / span > < / div >
< div class = "line" > < a id = "l00594" name = "l00594" > < / a > < span class = "lineno" > 594< / span > < span class = "comment" > // code below, it means first_arc is not part of a cycle according to< / span > < / div >
< div class = "line" > < a id = "l00595" name = "l00595" > < / a > < span class = "lineno" > 595< / span > < span class = "comment" > // bf_parent_arc_of_[], which should never happen.< / span > < / div >
< div class = "line" > < a id = "l00596" name = "l00596" > < / a > < span class = "lineno" > 596< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > num_nodes = impacted_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ();< / div >
< div class = "line" > < a id = "l00597" name = "l00597" > < / a > < span class = "lineno" > 597< / span > < span class = "keywordflow" > while< / span > (arc_on_cycle.size() < = num_nodes) {< / div >
< div class = "line" > < a id = "l00598" name = "l00598" > < / a > < span class = "lineno" > 598< / span > arc_on_cycle.push_back(arc_index);< / div >
< div class = "line" > < a id = "l00599" name = "l00599" > < / a > < span class = "lineno" > 599< / span > < span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > = arcs_[arc_index];< / div >
< div class = "line" > < a id = "l00600" name = "l00600" > < / a > < span class = "lineno" > 600< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .tail_var == first_arc_head) < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a id = "l00601" name = "l00601" > < / a > < span class = "lineno" > 601< / span > arc_index = bf_parent_arc_of_[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .tail_var.value()];< / div >
< div class = "line" > < a id = "l00602" name = "l00602" > < / a > < span class = "lineno" > 602< / span > < a class = "code hl_define" href = "base_2logging_8h.html#ab25e01a2942b821d66371fc68d53f2eb" > CHECK_NE< / a > (arc_index, < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > (-1));< / div >
< div class = "line" > < a id = "l00603" name = "l00603" > < / a > < span class = "lineno" > 603< / span > }< / div >
< div class = "line" > < a id = "l00604" name = "l00604" > < / a > < span class = "lineno" > 604< / span > < a class = "code hl_define" href = "base_2logging_8h.html#ab25e01a2942b821d66371fc68d53f2eb" > CHECK_NE< / a > (arc_on_cycle.size(), num_nodes + 1) < < < span class = "stringliteral" > " Infinite loop." < / span > ;< / div >
< div class = "line" > < a id = "l00605" name = "l00605" > < / a > < span class = "lineno" > 605< / span > < / div >
< div class = "line" > < a id = "l00606" name = "l00606" > < / a > < span class = "lineno" > 606< / span > < span class = "comment" > // Compute the reason for this cycle.< / span > < / div >
< div class = "line" > < a id = "l00607" name = "l00607" > < / a > < span class = "lineno" > 607< / span > IntegerValue sum(0);< / div >
< div class = "line" > < a id = "l00608" name = "l00608" > < / a > < span class = "lineno" > 608< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > arc_index : arc_on_cycle) {< / div >
< div class = "line" > < a id = "l00609" name = "l00609" > < / a > < span class = "lineno" > 609< / span > < span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > = arcs_[arc_index];< / div >
< div class = "line" > < a id = "l00610" name = "l00610" > < / a > < span class = "lineno" > 610< / span > sum += ArcOffset(< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > );< / div >
< div class = "line" > < a id = "l00611" name = "l00611" > < / a > < span class = "lineno" > 611< / span > AppendLowerBoundReasonIfValid(< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .offset_var, *integer_trail_,< / div >
< div class = "line" > < a id = "l00612" name = "l00612" > < / a > < span class = "lineno" > 612< / span > integer_reason);< / div >
< div class = "line" > < a id = "l00613" name = "l00613" > < / a > < span class = "lineno" > 613< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > Literal l : < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .presence_literals) {< / div >
< div class = "line" > < a id = "l00614" name = "l00614" > < / a > < span class = "lineno" > 614< / span > literal_reason-> push_back(l.Negated());< / div >
< div class = "line" > < a id = "l00615" name = "l00615" > < / a > < span class = "lineno" > 615< / span > }< / div >
< div class = "line" > < a id = "l00616" name = "l00616" > < / a > < span class = "lineno" > 616< / span > < / div >
< div class = "line" > < a id = "l00617" name = "l00617" > < / a > < span class = "lineno" > 617< / span > < span class = "comment" > // If the cycle happens to contain optional variable not yet ignored, then< / span > < / div >
< div class = "line" > < a id = "l00618" name = "l00618" > < / a > < span class = "lineno" > 618< / span > < span class = "comment" > // it is not a conflict anymore, but we can infer that these variable must< / span > < / div >
< div class = "line" > < a id = "l00619" name = "l00619" > < / a > < span class = "lineno" > 619< / span > < span class = "comment" > // all be ignored. This is because since we propagated them even if they< / span > < / div >
< div class = "line" > < a id = "l00620" name = "l00620" > < / a > < span class = "lineno" > 620< / span > < span class = "comment" > // where not present for sure, their presence literal must form a cycle< / span > < / div >
< div class = "line" > < a id = "l00621" name = "l00621" > < / a > < span class = "lineno" > 621< / span > < span class = "comment" > // together (i.e. they are all absent or present at the same time).< / span > < / div >
< div class = "line" > < a id = "l00622" name = "l00622" > < / a > < span class = "lineno" > 622< / span > < span class = "keywordflow" > if< / span > (integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#acc1aaae243ed4381e84f8309aacb3bbc" > IsOptional< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var)) {< / div >
< div class = "line" > < a id = "l00623" name = "l00623" > < / a > < span class = "lineno" > 623< / span > must_be_all_true-> push_back(< / div >
< div class = "line" > < a id = "l00624" name = "l00624" > < / a > < span class = "lineno" > 624< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ac8db20a5dab063aa3ca64a4ae1202d4c" > IsIgnoredLiteral< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var));< / div >
< div class = "line" > < a id = "l00625" name = "l00625" > < / a > < span class = "lineno" > 625< / span > }< / div >
< div class = "line" > < a id = "l00626" name = "l00626" > < / a > < span class = "lineno" > 626< / span > }< / div >
< div class = "line" > < a id = "l00627" name = "l00627" > < / a > < span class = "lineno" > 627< / span > < / div >
< div class = "line" > < a id = "l00628" name = "l00628" > < / a > < span class = "lineno" > 628< / span > < span class = "comment" > // TODO(user): what if the sum overflow? this is just a check so I guess< / span > < / div >
< div class = "line" > < a id = "l00629" name = "l00629" > < / a > < span class = "lineno" > 629< / span > < span class = "comment" > // we don' t really care, but fix the issue.< / span > < / div >
< div class = "line" > < a id = "l00630" name = "l00630" > < / a > < span class = "lineno" > 630< / span > < a class = "code hl_define" href = "base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6" > CHECK_GT< / a > (sum, 0);< / div >
< div class = "line" > < a id = "l00631" name = "l00631" > < / a > < span class = "lineno" > 631< / span > }< / div >
< div class = "line" > < a id = "l00632" name = "l00632" > < / a > < span class = "lineno" > 632< / span > < / div >
< div class = "line" > < a id = "l00633" name = "l00633" > < / a > < span class = "lineno" > 633< / span > < span class = "comment" > // Note that in our settings it is important to use an algorithm that tries to< / span > < / div >
< div class = "line" > < a id = "l00634" name = "l00634" > < / a > < span class = "lineno" > 634< / span > < span class = "comment" > // minimize the number of integer_trail_-> Enqueue() as much as possible.< / span > < / div >
< div class = "line" > < a id = "l00635" name = "l00635" > < / a > < span class = "lineno" > 635< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00636" name = "l00636" > < / a > < span class = "lineno" > 636< / span > < span class = "comment" > // TODO(user): The current algorithm is quite efficient, but there is probably< / span > < / div >
< div class = "line" > < a id = "l00637" name = "l00637" > < / a > < span class = "lineno" > 637< / span > < span class = "comment" > // still room for improvements.< / span > < / div >
< div class = "line" > < a id = "l00638" name = "l00638" > < / a > < span class = "lineno" > 638< / span > < span class = "keywordtype" > bool< / span > PrecedencesPropagator::BellmanFordTarjan(Trail* trail) {< / div >
< div class = "line" > < a id = "l00639" name = "l00639" > < / a > < span class = "lineno" > 639< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > num_nodes = impacted_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ();< / div >
2022-01-17 21:42:14 +01:00
< div class = "line" > < a id = "l00640" name = "l00640" > < / a > < span class = "lineno" > 640< / span > < / div >
2022-03-04 00:11:33 +01:00
< div class = "line" > < a id = "l00641" name = "l00641" > < / a > < span class = "lineno" > 641< / span > < span class = "comment" > // These vector are reset by CleanUpMarkedArcsAndParents() so resize is ok.< / span > < / div >
< div class = "line" > < a id = "l00642" name = "l00642" > < / a > < span class = "lineno" > 642< / span > bf_can_be_skipped_.resize(num_nodes, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a id = "l00643" name = "l00643" > < / a > < span class = "lineno" > 643< / span > bf_parent_arc_of_.resize(num_nodes, < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > (-1));< / div >
< div class = "line" > < a id = "l00644" name = "l00644" > < / a > < span class = "lineno" > 644< / span > < span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > cleanup =< / div >
< div class = "line" > < a id = "l00645" name = "l00645" > < / a > < span class = "lineno" > 645< / span > < a class = "code hl_function" href = "namespaceabsl.html#a01547ab811df98c71089487f394ec259" > ::absl::MakeCleanup< / a > ([< span class = "keyword" > this< / span > ]() { CleanUpMarkedArcsAndParents(); });< / div >
< div class = "line" > < a id = "l00646" name = "l00646" > < / a > < span class = "lineno" > 646< / span > < / div >
< div class = "line" > < a id = "l00647" name = "l00647" > < / a > < span class = "lineno" > 647< / span > < span class = "comment" > // The queue initialization is done by InitializeBFQueueWithModifiedNodes().< / span > < / div >
< div class = "line" > < a id = "l00648" name = "l00648" > < / a > < span class = "lineno" > 648< / span > < span class = "keywordflow" > while< / span > (!bf_queue_.empty()) {< / div >
< div class = "line" > < a id = "l00649" name = "l00649" > < / a > < span class = "lineno" > 649< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > node = bf_queue_.front();< / div >
< div class = "line" > < a id = "l00650" name = "l00650" > < / a > < span class = "lineno" > 650< / span > bf_queue_.pop_front();< / div >
< div class = "line" > < a id = "l00651" name = "l00651" > < / a > < span class = "lineno" > 651< / span > bf_in_queue_[node] = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00652" name = "l00652" > < / a > < span class = "lineno" > 652< / span > < / div >
< div class = "line" > < a id = "l00653" name = "l00653" > < / a > < span class = "lineno" > 653< / span > < span class = "comment" > // TODO(user): we don' t need bf_can_be_skipped_ since we can detect this< / span > < / div >
< div class = "line" > < a id = "l00654" name = "l00654" > < / a > < span class = "lineno" > 654< / span > < span class = "comment" > // if this node has a parent arc which is not marked. Investigate if it is< / span > < / div >
< div class = "line" > < a id = "l00655" name = "l00655" > < / a > < span class = "lineno" > 655< / span > < span class = "comment" > // faster without the vector< bool> .< / span > < / div >
< div class = "line" > < a id = "l00656" name = "l00656" > < / a > < span class = "lineno" > 656< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00657" name = "l00657" > < / a > < span class = "lineno" > 657< / span > < span class = "comment" > // TODO(user): An alternative algorithm is to remove all these nodes from< / span > < / div >
< div class = "line" > < a id = "l00658" name = "l00658" > < / a > < span class = "lineno" > 658< / span > < span class = "comment" > // the queue instead of simply marking them. This should also lead to a< / span > < / div >
< div class = "line" > < a id = "l00659" name = "l00659" > < / a > < span class = "lineno" > 659< / span > < span class = "comment" > // better " relaxation" order of the arcs. It is however a bit more work to< / span > < / div >
< div class = "line" > < a id = "l00660" name = "l00660" > < / a > < span class = "lineno" > 660< / span > < span class = "comment" > // remove them since we need to track their position.< / span > < / div >
< div class = "line" > < a id = "l00661" name = "l00661" > < / a > < span class = "lineno" > 661< / span > < span class = "keywordflow" > if< / span > (bf_can_be_skipped_[node]) {< / div >
< div class = "line" > < a id = "l00662" name = "l00662" > < / a > < span class = "lineno" > 662< / span > < a class = "code hl_define" href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > (bf_parent_arc_of_[node], -1);< / div >
< div class = "line" > < a id = "l00663" name = "l00663" > < / a > < span class = "lineno" > 663< / span > < a class = "code hl_define" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (!arcs_[bf_parent_arc_of_[node]].is_marked);< / div >
< div class = "line" > < a id = "l00664" name = "l00664" > < / a > < span class = "lineno" > 664< / span > < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00665" name = "l00665" > < / a > < span class = "lineno" > 665< / span > }< / div >
< div class = "line" > < a id = "l00666" name = "l00666" > < / a > < span class = "lineno" > 666< / span > < / div >
< div class = "line" > < a id = "l00667" name = "l00667" > < / a > < span class = "lineno" > 667< / span > < span class = "keyword" > const< / span > IntegerValue tail_lb =< / div >
< div class = "line" > < a id = "l00668" name = "l00668" > < / a > < span class = "lineno" > 668< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9" > LowerBound< / a > (IntegerVariable(node));< / div >
< div class = "line" > < a id = "l00669" name = "l00669" > < / a > < span class = "lineno" > 669< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > arc_index : impacted_arcs_[IntegerVariable(node)]) {< / div >
< div class = "line" > < a id = "l00670" name = "l00670" > < / a > < span class = "lineno" > 670< / span > < span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > = arcs_[arc_index];< / div >
< div class = "line" > < a id = "l00671" name = "l00671" > < / a > < span class = "lineno" > 671< / span > < a class = "code hl_define" href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .tail_var, node);< / div >
< div class = "line" > < a id = "l00672" name = "l00672" > < / a > < span class = "lineno" > 672< / span > < span class = "keyword" > const< / span > IntegerValue candidate = tail_lb + ArcOffset(< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > );< / div >
< div class = "line" > < a id = "l00673" name = "l00673" > < / a > < span class = "lineno" > 673< / span > < span class = "keywordflow" > if< / span > (candidate > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9" > LowerBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var)) {< / div >
< div class = "line" > < a id = "l00674" name = "l00674" > < / a > < span class = "lineno" > 674< / span > < span class = "keywordflow" > if< / span > (integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a309d057e12c8d4d393f13975eea2e2a9" > IsCurrentlyIgnored< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var)) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00675" name = "l00675" > < / a > < span class = "lineno" > 675< / span > < span class = "keywordflow" > if< / span > (!EnqueueAndCheck(< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > , candidate, trail)) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00676" name = "l00676" > < / a > < span class = "lineno" > 676< / span > < / div >
< div class = "line" > < a id = "l00677" name = "l00677" > < / a > < span class = "lineno" > 677< / span > < span class = "comment" > // This is the Tarjan contribution to Bellman-Ford. This code detect< / span > < / div >
< div class = "line" > < a id = "l00678" name = "l00678" > < / a > < span class = "lineno" > 678< / span > < span class = "comment" > // positive cycle, and because it disassemble the subtree while doing< / span > < / div >
< div class = "line" > < a id = "l00679" name = "l00679" > < / a > < span class = "lineno" > 679< / span > < span class = "comment" > // so, the cost is amortized during the algorithm execution. Another< / span > < / div >
< div class = "line" > < a id = "l00680" name = "l00680" > < / a > < span class = "lineno" > 680< / span > < span class = "comment" > // advantages is that it will mark the node explored here as skippable< / span > < / div >
< div class = "line" > < a id = "l00681" name = "l00681" > < / a > < span class = "lineno" > 681< / span > < span class = "comment" > // which will avoid to propagate them too early (knowing that they will< / span > < / div >
< div class = "line" > < a id = "l00682" name = "l00682" > < / a > < span class = "lineno" > 682< / span > < span class = "comment" > // need to be propagated again later).< / span > < / div >
< div class = "line" > < a id = "l00683" name = "l00683" > < / a > < span class = "lineno" > 683< / span > < span class = "keywordflow" > if< / span > (DisassembleSubtree(< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var.value(), < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .tail_var.value(),< / div >
< div class = "line" > < a id = "l00684" name = "l00684" > < / a > < span class = "lineno" > 684< / span > & bf_can_be_skipped_)) {< / div >
< div class = "line" > < a id = "l00685" name = "l00685" > < / a > < span class = "lineno" > 685< / span > std::vector< Literal> must_be_all_true;< / div >
< div class = "line" > < a id = "l00686" name = "l00686" > < / a > < span class = "lineno" > 686< / span > AnalyzePositiveCycle(arc_index, trail, & must_be_all_true,< / div >
< div class = "line" > < a id = "l00687" name = "l00687" > < / a > < span class = "lineno" > 687< / span > & literal_reason_, & integer_reason_);< / div >
< div class = "line" > < a id = "l00688" name = "l00688" > < / a > < span class = "lineno" > 688< / span > < span class = "keywordflow" > if< / span > (must_be_all_true.empty()) {< / div >
< div class = "line" > < a id = "l00689" name = "l00689" > < / a > < span class = "lineno" > 689< / span > < span class = "keywordflow" > return< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a6d55b5b9adc499095dd57dd0c2b6c7df" > ReportConflict< / a > (literal_reason_,< / div >
< div class = "line" > < a id = "l00690" name = "l00690" > < / a > < span class = "lineno" > 690< / span > integer_reason_);< / div >
< div class = "line" > < a id = "l00691" name = "l00691" > < / a > < span class = "lineno" > 691< / span > } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a id = "l00692" name = "l00692" > < / a > < span class = "lineno" > 692< / span > < a class = "code hl_function" href = "namespacegtl.html#a288a1dc92da5d3ad62d4bc4cec9e8b1d" > gtl::STLSortAndRemoveDuplicates< / a > (& must_be_all_true);< / div >
< div class = "line" > < a id = "l00693" name = "l00693" > < / a > < span class = "lineno" > 693< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > Literal l : must_be_all_true) {< / div >
< div class = "line" > < a id = "l00694" name = "l00694" > < / a > < span class = "lineno" > 694< / span > < span class = "keywordflow" > if< / span > (trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_trail.html#a4793952607a98dfddfbcc17abfabbb4b" > Assignment< / a > ().< a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_variables_assignment.html#acfd1646011e643f58fd7dc66d9cc90a5" > LiteralIsFalse< / a > (l)) {< / div >
< div class = "line" > < a id = "l00695" name = "l00695" > < / a > < span class = "lineno" > 695< / span > literal_reason_.push_back(l);< / div >
< div class = "line" > < a id = "l00696" name = "l00696" > < / a > < span class = "lineno" > 696< / span > < span class = "keywordflow" > return< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a6d55b5b9adc499095dd57dd0c2b6c7df" > ReportConflict< / a > (literal_reason_,< / div >
< div class = "line" > < a id = "l00697" name = "l00697" > < / a > < span class = "lineno" > 697< / span > integer_reason_);< / div >
< div class = "line" > < a id = "l00698" name = "l00698" > < / a > < span class = "lineno" > 698< / span > }< / div >
< div class = "line" > < a id = "l00699" name = "l00699" > < / a > < span class = "lineno" > 699< / span > }< / div >
< div class = "line" > < a id = "l00700" name = "l00700" > < / a > < span class = "lineno" > 700< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > Literal l : must_be_all_true) {< / div >
< div class = "line" > < a id = "l00701" name = "l00701" > < / a > < span class = "lineno" > 701< / span > < span class = "keywordflow" > if< / span > (trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_trail.html#a4793952607a98dfddfbcc17abfabbb4b" > Assignment< / a > ().< a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_variables_assignment.html#a5300129913f51dcb0b1c531e3248490e" > LiteralIsTrue< / a > (l)) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00702" name = "l00702" > < / a > < span class = "lineno" > 702< / span > integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#a79322fd8dff49ab2eab22c0570aba594" > EnqueueLiteral< / a > (l, literal_reason_,< / div >
< div class = "line" > < a id = "l00703" name = "l00703" > < / a > < span class = "lineno" > 703< / span > integer_reason_);< / div >
< div class = "line" > < a id = "l00704" name = "l00704" > < / a > < span class = "lineno" > 704< / span > }< / div >
< div class = "line" > < a id = "l00705" name = "l00705" > < / a > < span class = "lineno" > 705< / span > < / div >
< div class = "line" > < a id = "l00706" name = "l00706" > < / a > < span class = "lineno" > 706< / span > < span class = "comment" > // We just marked some optional variable as ignored, no need< / span > < / div >
< div class = "line" > < a id = "l00707" name = "l00707" > < / a > < span class = "lineno" > 707< / span > < span class = "comment" > // to update bf_parent_arc_of_[].< / span > < / div >
< div class = "line" > < a id = "l00708" name = "l00708" > < / a > < span class = "lineno" > 708< / span > < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00709" name = "l00709" > < / a > < span class = "lineno" > 709< / span > }< / div >
< div class = "line" > < a id = "l00710" name = "l00710" > < / a > < span class = "lineno" > 710< / span > }< / div >
< div class = "line" > < a id = "l00711" name = "l00711" > < / a > < span class = "lineno" > 711< / span > < / div >
< div class = "line" > < a id = "l00712" name = "l00712" > < / a > < span class = "lineno" > 712< / span > < span class = "comment" > // We need to enforce the invariant that only the arc_index in< / span > < / div >
< div class = "line" > < a id = "l00713" name = "l00713" > < / a > < span class = "lineno" > 713< / span > < span class = "comment" > // bf_parent_arc_of_[] are marked (but not necessarily all of them< / span > < / div >
< div class = "line" > < a id = "l00714" name = "l00714" > < / a > < span class = "lineno" > 714< / span > < span class = "comment" > // since we unmark some in DisassembleSubtree()).< / span > < / div >
< div class = "line" > < a id = "l00715" name = "l00715" > < / a > < span class = "lineno" > 715< / span > < span class = "keywordflow" > if< / span > (bf_parent_arc_of_[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var.value()] != -1) {< / div >
< div class = "line" > < a id = "l00716" name = "l00716" > < / a > < span class = "lineno" > 716< / span > arcs_[bf_parent_arc_of_[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var.value()]].is_marked = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00717" name = "l00717" > < / a > < span class = "lineno" > 717< / span > }< / div >
< div class = "line" > < a id = "l00718" name = "l00718" > < / a > < span class = "lineno" > 718< / span > < / div >
< div class = "line" > < a id = "l00719" name = "l00719" > < / a > < span class = "lineno" > 719< / span > < span class = "comment" > // Tricky: We just enqueued the fact that the lower-bound of head is< / span > < / div >
< div class = "line" > < a id = "l00720" name = "l00720" > < / a > < span class = "lineno" > 720< / span > < span class = "comment" > // candidate. However, because the domain of head may be discrete, it is< / span > < / div >
< div class = "line" > < a id = "l00721" name = "l00721" > < / a > < span class = "lineno" > 721< / span > < span class = "comment" > // possible that the lower-bound of head is now higher than candidate!< / span > < / div >
< div class = "line" > < a id = "l00722" name = "l00722" > < / a > < span class = "lineno" > 722< / span > < span class = "comment" > // If this is the case, we don' t update bf_parent_arc_of_[] so that we< / span > < / div >
< div class = "line" > < a id = "l00723" name = "l00723" > < / a > < span class = "lineno" > 723< / span > < span class = "comment" > // don' t wrongly detect a positive weight cycle because of this " extra< / span > < / div >
< div class = "line" > < a id = "l00724" name = "l00724" > < / a > < span class = "lineno" > 724< / span > < span class = "comment" > // push" .< / span > < / div >
< div class = "line" > < a id = "l00725" name = "l00725" > < / a > < span class = "lineno" > 725< / span > < span class = "keyword" > const< / span > IntegerValue new_bound = integer_trail_-> < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9" > LowerBound< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var);< / div >
< div class = "line" > < a id = "l00726" name = "l00726" > < / a > < span class = "lineno" > 726< / span > < span class = "keywordflow" > if< / span > (new_bound == candidate) {< / div >
< div class = "line" > < a id = "l00727" name = "l00727" > < / a > < span class = "lineno" > 727< / span > bf_parent_arc_of_[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var.value()] = arc_index;< / div >
< div class = "line" > < a id = "l00728" name = "l00728" > < / a > < span class = "lineno" > 728< / span > arcs_[arc_index].is_marked = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00729" name = "l00729" > < / a > < span class = "lineno" > 729< / span > } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a id = "l00730" name = "l00730" > < / a > < span class = "lineno" > 730< / span > < span class = "comment" > // We still unmark any previous dependency, since we have pushed the< / span > < / div >
< div class = "line" > < a id = "l00731" name = "l00731" > < / a > < span class = "lineno" > 731< / span > < span class = "comment" > // value of arc.head_var further.< / span > < / div >
< div class = "line" > < a id = "l00732" name = "l00732" > < / a > < span class = "lineno" > 732< / span > bf_parent_arc_of_[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var.value()] = -1;< / div >
< div class = "line" > < a id = "l00733" name = "l00733" > < / a > < span class = "lineno" > 733< / span > }< / div >
< div class = "line" > < a id = "l00734" name = "l00734" > < / a > < span class = "lineno" > 734< / span > < / div >
< div class = "line" > < a id = "l00735" name = "l00735" > < / a > < span class = "lineno" > 735< / span > < span class = "comment" > // We do not re-enqueue if we are in a propagation loop and new_bound< / span > < / div >
< div class = "line" > < a id = "l00736" name = "l00736" > < / a > < span class = "lineno" > 736< / span > < span class = "comment" > // was not pushed to candidate or higher.< / span > < / div >
< div class = "line" > < a id = "l00737" name = "l00737" > < / a > < span class = "lineno" > 737< / span > bf_can_be_skipped_[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var.value()] = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00738" name = "l00738" > < / a > < span class = "lineno" > 738< / span > < span class = "keywordflow" > if< / span > (!bf_in_queue_[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var.value()] & & new_bound > = candidate) {< / div >
< div class = "line" > < a id = "l00739" name = "l00739" > < / a > < span class = "lineno" > 739< / span > bf_queue_.push_back(< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var.value());< / div >
< div class = "line" > < a id = "l00740" name = "l00740" > < / a > < span class = "lineno" > 740< / span > bf_in_queue_[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var.value()] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00741" name = "l00741" > < / a > < span class = "lineno" > 741< / span > }< / div >
< div class = "line" > < a id = "l00742" name = "l00742" > < / a > < span class = "lineno" > 742< / span > }< / div >
< div class = "line" > < a id = "l00743" name = "l00743" > < / a > < span class = "lineno" > 743< / span > }< / div >
< div class = "line" > < a id = "l00744" name = "l00744" > < / a > < span class = "lineno" > 744< / span > }< / div >
< div class = "line" > < a id = "l00745" name = "l00745" > < / a > < span class = "lineno" > 745< / span > < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00746" name = "l00746" > < / a > < span class = "lineno" > 746< / span > }< / div >
< div class = "line" > < a id = "l00747" name = "l00747" > < / a > < span class = "lineno" > 747< / span > < / div >
< div class = "line" > < a id = "l00748" name = "l00748" > < / a > < span class = "lineno" > 748< / span > < span class = "keywordtype" > int< / span > PrecedencesPropagator::AddGreaterThanAtLeastOneOfConstraintsFromClause(< / div >
< div class = "line" > < a id = "l00749" name = "l00749" > < / a > < span class = "lineno" > 749< / span > < span class = "keyword" > const< / span > absl::Span< const Literal> clause, Model* < a class = "code hl_variable" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > ) {< / div >
< div class = "line" > < a id = "l00750" name = "l00750" > < / a > < span class = "lineno" > 750< / span > < a class = "code hl_define" href = "base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b" > CHECK_EQ< / a > (< a class = "code hl_variable" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > -> GetOrCreate< Trail> ()-> CurrentDecisionLevel(), 0);< / div >
< div class = "line" > < a id = "l00751" name = "l00751" > < / a > < span class = "lineno" > 751< / span > < span class = "keywordflow" > if< / span > (clause.size() < 2) < span class = "keywordflow" > return< / span > 0;< / div >
< div class = "line" > < a id = "l00752" name = "l00752" > < / a > < span class = "lineno" > 752< / span > < / div >
< div class = "line" > < a id = "l00753" name = "l00753" > < / a > < span class = "lineno" > 753< / span > < span class = "comment" > // Collect all arcs impacted by this clause.< / span > < / div >
< div class = "line" > < a id = "l00754" name = "l00754" > < / a > < span class = "lineno" > 754< / span > std::vector< ArcInfo> infos;< / div >
< div class = "line" > < a id = "l00755" name = "l00755" > < / a > < span class = "lineno" > 755< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > Literal l : clause) {< / div >
< div class = "line" > < a id = "l00756" name = "l00756" > < / a > < span class = "lineno" > 756< / span > < span class = "keywordflow" > if< / span > (l.Index() > = literal_to_new_impacted_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ()) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00757" name = "l00757" > < / a > < span class = "lineno" > 757< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > arc_index : literal_to_new_impacted_arcs_[l.Index()]) {< / div >
< div class = "line" > < a id = "l00758" name = "l00758" > < / a > < span class = "lineno" > 758< / span > < span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > = arcs_[arc_index];< / div >
< div class = "line" > < a id = "l00759" name = "l00759" > < / a > < span class = "lineno" > 759< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .presence_literals.size() != 1) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00760" name = "l00760" > < / a > < span class = "lineno" > 760< / span > < / div >
< div class = "line" > < a id = "l00761" name = "l00761" > < / a > < span class = "lineno" > 761< / span > < span class = "comment" > // TODO(user): Support variable offset.< / span > < / div >
< div class = "line" > < a id = "l00762" name = "l00762" > < / a > < span class = "lineno" > 762< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .offset_var != < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > ) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00763" name = "l00763" > < / a > < span class = "lineno" > 763< / span > infos.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > );< / div >
< div class = "line" > < a id = "l00764" name = "l00764" > < / a > < span class = "lineno" > 764< / span > }< / div >
< div class = "line" > < a id = "l00765" name = "l00765" > < / a > < span class = "lineno" > 765< / span > }< / div >
< div class = "line" > < a id = "l00766" name = "l00766" > < / a > < span class = "lineno" > 766< / span > < span class = "keywordflow" > if< / span > (infos.size() < = 1) < span class = "keywordflow" > return< / span > 0;< / div >
< div class = "line" > < a id = "l00767" name = "l00767" > < / a > < span class = "lineno" > 767< / span > < / div >
< div class = "line" > < a id = "l00768" name = "l00768" > < / a > < span class = "lineno" > 768< / span > < span class = "comment" > // Stable sort by head_var so that for a same head_var, the entry are sorted< / span > < / div >
< div class = "line" > < a id = "l00769" name = "l00769" > < / a > < span class = "lineno" > 769< / span > < span class = "comment" > // by Literal as they appear in clause.< / span > < / div >
< div class = "line" > < a id = "l00770" name = "l00770" > < / a > < span class = "lineno" > 770< / span > std::stable_sort(infos.begin(), infos.end(),< / div >
< div class = "line" > < a id = "l00771" name = "l00771" > < / a > < span class = "lineno" > 771< / span > [](< span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6" > a< / a > , < span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683" > b< / a > ) {< / div >
< div class = "line" > < a id = "l00772" name = "l00772" > < / a > < span class = "lineno" > 772< / span > return a.head_var < b.head_var;< / div >
< div class = "line" > < a id = "l00773" name = "l00773" > < / a > < span class = "lineno" > 773< / span > });< / div >
< div class = "line" > < a id = "l00774" name = "l00774" > < / a > < span class = "lineno" > 774< / span > < / div >
< div class = "line" > < a id = "l00775" name = "l00775" > < / a > < span class = "lineno" > 775< / span > < span class = "comment" > // We process ArcInfo with the same head_var toghether.< / span > < / div >
< div class = "line" > < a id = "l00776" name = "l00776" > < / a > < span class = "lineno" > 776< / span > < span class = "keywordtype" > int< / span > num_added_constraints = 0;< / div >
< div class = "line" > < a id = "l00777" name = "l00777" > < / a > < span class = "lineno" > 777< / span > < span class = "keyword" > auto< / span > * solver = < a class = "code hl_variable" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > -> GetOrCreate< SatSolver> ();< / div >
< div class = "line" > < a id = "l00778" name = "l00778" > < / a > < span class = "lineno" > 778< / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < infos.size();) {< / div >
< div class = "line" > < a id = "l00779" name = "l00779" > < / a > < span class = "lineno" > 779< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > < a class = "code hl_variable" href = "sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe" > start< / a > = i;< / div >
< div class = "line" > < a id = "l00780" name = "l00780" > < / a > < span class = "lineno" > 780< / span > < span class = "keyword" > const< / span > IntegerVariable head_var = infos[< a class = "code hl_variable" href = "sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe" > start< / a > ].head_var;< / div >
< div class = "line" > < a id = "l00781" name = "l00781" > < / a > < span class = "lineno" > 781< / span > < span class = "keywordflow" > for< / span > (i++; i < infos.size() & & infos[i].head_var == head_var; ++i) {< / div >
< div class = "line" > < a id = "l00782" name = "l00782" > < / a > < span class = "lineno" > 782< / span > }< / div >
< div class = "line" > < a id = "l00783" name = "l00783" > < / a > < span class = "lineno" > 783< / span > < span class = "keyword" > const< / span > absl::Span< ArcInfo> arcs(& infos[< a class = "code hl_variable" href = "sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe" > start< / a > ], i - < a class = "code hl_variable" href = "sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe" > start< / a > );< / div >
< div class = "line" > < a id = "l00784" name = "l00784" > < / a > < span class = "lineno" > 784< / span > < / div >
< div class = "line" > < a id = "l00785" name = "l00785" > < / a > < span class = "lineno" > 785< / span > < span class = "comment" > // Skip single arcs since it will already be fully propagated.< / span > < / div >
< div class = "line" > < a id = "l00786" name = "l00786" > < / a > < span class = "lineno" > 786< / span > < span class = "keywordflow" > if< / span > (arcs.size() < 2) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00787" name = "l00787" > < / a > < span class = "lineno" > 787< / span > < / div >
< div class = "line" > < a id = "l00788" name = "l00788" > < / a > < span class = "lineno" > 788< / span > < span class = "comment" > // Heuristic. Look for full or almost full clauses. We could add< / span > < / div >
< div class = "line" > < a id = "l00789" name = "l00789" > < / a > < span class = "lineno" > 789< / span > < span class = "comment" > // GreaterThanAtLeastOneOf() with more enforcement literals. TODO(user):< / span > < / div >
< div class = "line" > < a id = "l00790" name = "l00790" > < / a > < span class = "lineno" > 790< / span > < span class = "comment" > // experiments.< / span > < / div >
< div class = "line" > < a id = "l00791" name = "l00791" > < / a > < span class = "lineno" > 791< / span > < span class = "keywordflow" > if< / span > (arcs.size() + 1 < clause.size()) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00792" name = "l00792" > < / a > < span class = "lineno" > 792< / span > < / div >
< div class = "line" > < a id = "l00793" name = "l00793" > < / a > < span class = "lineno" > 793< / span > std::vector< IntegerVariable> vars;< / div >
< div class = "line" > < a id = "l00794" name = "l00794" > < / a > < span class = "lineno" > 794< / span > std::vector< IntegerValue> offsets;< / div >
< div class = "line" > < a id = "l00795" name = "l00795" > < / a > < span class = "lineno" > 795< / span > std::vector< Literal> selectors;< / div >
< div class = "line" > < a id = "l00796" name = "l00796" > < / a > < span class = "lineno" > 796< / span > std::vector< Literal> enforcements;< / div >
< div class = "line" > < a id = "l00797" name = "l00797" > < / a > < span class = "lineno" > 797< / span > < / div >
< div class = "line" > < a id = "l00798" name = "l00798" > < / a > < span class = "lineno" > 798< / span > < span class = "keywordtype" > int< / span > j = 0;< / div >
< div class = "line" > < a id = "l00799" name = "l00799" > < / a > < span class = "lineno" > 799< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > Literal l : clause) {< / div >
< div class = "line" > < a id = "l00800" name = "l00800" > < / a > < span class = "lineno" > 800< / span > < span class = "keywordtype" > bool< / span > added = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00801" name = "l00801" > < / a > < span class = "lineno" > 801< / span > < span class = "keywordflow" > for< / span > (; j < arcs.size() & & l == arcs[j].presence_literals.front(); ++j) {< / div >
< div class = "line" > < a id = "l00802" name = "l00802" > < / a > < span class = "lineno" > 802< / span > added = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00803" name = "l00803" > < / a > < span class = "lineno" > 803< / span > vars.push_back(arcs[j].tail_var);< / div >
< div class = "line" > < a id = "l00804" name = "l00804" > < / a > < span class = "lineno" > 804< / span > offsets.push_back(arcs[j].offset);< / div >
2022-01-17 21:42:14 +01:00
< div class = "line" > < a id = "l00805" name = "l00805" > < / a > < span class = "lineno" > 805< / span > < / div >
2022-03-04 00:11:33 +01:00
< div class = "line" > < a id = "l00806" name = "l00806" > < / a > < span class = "lineno" > 806< / span > < span class = "comment" > // Note that duplicate selector are supported.< / span > < / div >
< div class = "line" > < a id = "l00807" name = "l00807" > < / a > < span class = "lineno" > 807< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00808" name = "l00808" > < / a > < span class = "lineno" > 808< / span > < span class = "comment" > // TODO(user): If we support variable offset, we should regroup the arcs< / span > < / div >
< div class = "line" > < a id = "l00809" name = "l00809" > < / a > < span class = "lineno" > 809< / span > < span class = "comment" > // into one (tail + offset < = head) though, instead of having too< / span > < / div >
< div class = "line" > < a id = "l00810" name = "l00810" > < / a > < span class = "lineno" > 810< / span > < span class = "comment" > // identical entries.< / span > < / div >
< div class = "line" > < a id = "l00811" name = "l00811" > < / a > < span class = "lineno" > 811< / span > selectors.push_back(l);< / div >
< div class = "line" > < a id = "l00812" name = "l00812" > < / a > < span class = "lineno" > 812< / span > }< / div >
< div class = "line" > < a id = "l00813" name = "l00813" > < / a > < span class = "lineno" > 813< / span > < span class = "keywordflow" > if< / span > (!added) {< / div >
< div class = "line" > < a id = "l00814" name = "l00814" > < / a > < span class = "lineno" > 814< / span > enforcements.push_back(l.Negated());< / div >
< div class = "line" > < a id = "l00815" name = "l00815" > < / a > < span class = "lineno" > 815< / span > }< / div >
< div class = "line" > < a id = "l00816" name = "l00816" > < / a > < span class = "lineno" > 816< / span > }< / div >
2022-01-17 21:42:14 +01:00
< div class = "line" > < a id = "l00817" name = "l00817" > < / a > < span class = "lineno" > 817< / span > < / div >
2022-03-04 00:11:33 +01:00
< div class = "line" > < a id = "l00818" name = "l00818" > < / a > < span class = "lineno" > 818< / span > < span class = "comment" > // No point adding a constraint if there is not at least two different< / span > < / div >
< div class = "line" > < a id = "l00819" name = "l00819" > < / a > < span class = "lineno" > 819< / span > < span class = "comment" > // literals in selectors.< / span > < / div >
< div class = "line" > < a id = "l00820" name = "l00820" > < / a > < span class = "lineno" > 820< / span > < span class = "keywordflow" > if< / span > (enforcements.size() + 1 == clause.size()) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00821" name = "l00821" > < / a > < span class = "lineno" > 821< / span > < / div >
< div class = "line" > < a id = "l00822" name = "l00822" > < / a > < span class = "lineno" > 822< / span > ++num_added_constraints;< / div >
< div class = "line" > < a id = "l00823" name = "l00823" > < / a > < span class = "lineno" > 823< / span > < a class = "code hl_variable" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > -> Add(< a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a76ccbd25cf01d0ca822a1078a7193607" > GreaterThanAtLeastOneOf< / a > (head_var, vars, offsets, selectors,< / div >
< div class = "line" > < a id = "l00824" name = "l00824" > < / a > < span class = "lineno" > 824< / span > enforcements));< / div >
< div class = "line" > < a id = "l00825" name = "l00825" > < / a > < span class = "lineno" > 825< / span > < span class = "keywordflow" > if< / span > (!solver-> FinishPropagation()) < span class = "keywordflow" > return< / span > num_added_constraints;< / div >
< div class = "line" > < a id = "l00826" name = "l00826" > < / a > < span class = "lineno" > 826< / span > }< / div >
< div class = "line" > < a id = "l00827" name = "l00827" > < / a > < span class = "lineno" > 827< / span > < span class = "keywordflow" > return< / span > num_added_constraints;< / div >
< div class = "line" > < a id = "l00828" name = "l00828" > < / a > < span class = "lineno" > 828< / span > }< / div >
< div class = "line" > < a id = "l00829" name = "l00829" > < / a > < span class = "lineno" > 829< / span > < / div >
< div class = "line" > < a id = "l00830" name = "l00830" > < / a > < span class = "lineno" > 830< / span > < span class = "keywordtype" > int< / span > PrecedencesPropagator::< / div >
< div class = "line" > < a id = "l00831" name = "l00831" > < / a > < span class = "lineno" > 831< / span > AddGreaterThanAtLeastOneOfConstraintsWithClauseAutoDetection(Model* < a class = "code hl_variable" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > ) {< / div >
< div class = "line" > < a id = "l00832" name = "l00832" > < / a > < span class = "lineno" > 832< / span > < span class = "keyword" > auto< / span > * < a class = "code hl_variable" href = "cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21" > time_limit< / a > = < a class = "code hl_variable" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > -> GetOrCreate< TimeLimit> ();< / div >
< div class = "line" > < a id = "l00833" name = "l00833" > < / a > < span class = "lineno" > 833< / span > < span class = "keyword" > auto< / span > * solver = < a class = "code hl_variable" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > -> GetOrCreate< SatSolver> ();< / div >
< div class = "line" > < a id = "l00834" name = "l00834" > < / a > < span class = "lineno" > 834< / span > < / div >
< div class = "line" > < a id = "l00835" name = "l00835" > < / a > < span class = "lineno" > 835< / span > < span class = "comment" > // Fill the set of incoming conditional arcs for each variables.< / span > < / div >
< div class = "line" > < a id = "l00836" name = "l00836" > < / a > < span class = "lineno" > 836< / span > < a class = "code hl_class" href = "classabsl_1_1_strong_vector.html" > absl::StrongVector< IntegerVariable, std::vector< ArcIndex> < / a > > incoming_arcs_;< / div >
< div class = "line" > < a id = "l00837" name = "l00837" > < / a > < span class = "lineno" > 837< / span > < span class = "keywordflow" > for< / span > (< a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > arc_index(0); arc_index < arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > (); ++arc_index) {< / div >
< div class = "line" > < a id = "l00838" name = "l00838" > < / a > < span class = "lineno" > 838< / span > < span class = "keyword" > const< / span > ArcInfo& < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > = arcs_[arc_index];< / div >
< div class = "line" > < a id = "l00839" name = "l00839" > < / a > < span class = "lineno" > 839< / span > < / div >
< div class = "line" > < a id = "l00840" name = "l00840" > < / a > < span class = "lineno" > 840< / span > < span class = "comment" > // Only keep arc that have a fixed offset and a single presence_literals.< / span > < / div >
< div class = "line" > < a id = "l00841" name = "l00841" > < / a > < span class = "lineno" > 841< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .offset_var != < a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > kNoIntegerVariable< / a > ) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00842" name = "l00842" > < / a > < span class = "lineno" > 842< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .tail_var == < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00843" name = "l00843" > < / a > < span class = "lineno" > 843< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .presence_literals.size() != 1) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00844" name = "l00844" > < / a > < span class = "lineno" > 844< / span > < / div >
< div class = "line" > < a id = "l00845" name = "l00845" > < / a > < span class = "lineno" > 845< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var > = incoming_arcs_.size()) {< / div >
< div class = "line" > < a id = "l00846" name = "l00846" > < / a > < span class = "lineno" > 846< / span > incoming_arcs_.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var.value() + 1);< / div >
< div class = "line" > < a id = "l00847" name = "l00847" > < / a > < span class = "lineno" > 847< / span > }< / div >
< div class = "line" > < a id = "l00848" name = "l00848" > < / a > < span class = "lineno" > 848< / span > incoming_arcs_[< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > .head_var].push_back(arc_index);< / div >
< div class = "line" > < a id = "l00849" name = "l00849" > < / a > < span class = "lineno" > 849< / span > }< / div >
< div class = "line" > < a id = "l00850" name = "l00850" > < / a > < span class = "lineno" > 850< / span > < / div >
< div class = "line" > < a id = "l00851" name = "l00851" > < / a > < span class = "lineno" > 851< / span > < span class = "keywordtype" > int< / span > num_added_constraints = 0;< / div >
< div class = "line" > < a id = "l00852" name = "l00852" > < / a > < span class = "lineno" > 852< / span > < span class = "keywordflow" > for< / span > (IntegerVariable target(0); target < incoming_arcs_.size(); ++target) {< / div >
< div class = "line" > < a id = "l00853" name = "l00853" > < / a > < span class = "lineno" > 853< / span > < span class = "keywordflow" > if< / span > (incoming_arcs_[target].size() < = 1) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00854" name = "l00854" > < / a > < span class = "lineno" > 854< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21" > time_limit< / a > -> LimitReached()) < span class = "keywordflow" > return< / span > num_added_constraints;< / div >
< div class = "line" > < a id = "l00855" name = "l00855" > < / a > < span class = "lineno" > 855< / span > < / div >
< div class = "line" > < a id = "l00856" name = "l00856" > < / a > < span class = "lineno" > 856< / span > < span class = "comment" > // Detect set of incoming arcs for which at least one must be present.< / span > < / div >
< div class = "line" > < a id = "l00857" name = "l00857" > < / a > < span class = "lineno" > 857< / span > < span class = "comment" > // TODO(user): Find more than one disjoint set of incoming arcs.< / span > < / div >
< div class = "line" > < a id = "l00858" name = "l00858" > < / a > < span class = "lineno" > 858< / span > < span class = "comment" > // TODO(user): call MinimizeCoreWithPropagation() on the clause.< / span > < / div >
< div class = "line" > < a id = "l00859" name = "l00859" > < / a > < span class = "lineno" > 859< / span > solver-> Backtrack(0);< / div >
< div class = "line" > < a id = "l00860" name = "l00860" > < / a > < span class = "lineno" > 860< / span > < span class = "keywordflow" > if< / span > (solver-> IsModelUnsat()) < span class = "keywordflow" > return< / span > num_added_constraints;< / div >
< div class = "line" > < a id = "l00861" name = "l00861" > < / a > < span class = "lineno" > 861< / span > std::vector< Literal> clause;< / div >
< div class = "line" > < a id = "l00862" name = "l00862" > < / a > < span class = "lineno" > 862< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > arc_index : incoming_arcs_[target]) {< / div >
< div class = "line" > < a id = "l00863" name = "l00863" > < / a > < span class = "lineno" > 863< / span > < span class = "keyword" > const< / span > Literal < a class = "code hl_variable" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > = arcs_[arc_index].presence_literals.< a class = "code hl_function" href = "classabsl_1_1_strong_vector.html#a6a48363b4355f6f5b441637774f79a59" > front< / a > ();< / div >
< div class = "line" > < a id = "l00864" name = "l00864" > < / a > < span class = "lineno" > 864< / span > < span class = "keywordflow" > if< / span > (solver-> Assignment().LiteralIsFalse(< a class = "code hl_variable" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > )) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a id = "l00865" name = "l00865" > < / a > < span class = "lineno" > 865< / span > < / div >
< div class = "line" > < a id = "l00866" name = "l00866" > < / a > < span class = "lineno" > 866< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > old_level = solver-> CurrentDecisionLevel();< / div >
< div class = "line" > < a id = "l00867" name = "l00867" > < / a > < span class = "lineno" > 867< / span > solver-> EnqueueDecisionAndBacktrackOnConflict(< a class = "code hl_variable" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > .Negated());< / div >
< div class = "line" > < a id = "l00868" name = "l00868" > < / a > < span class = "lineno" > 868< / span > < span class = "keywordflow" > if< / span > (solver-> IsModelUnsat()) < span class = "keywordflow" > return< / span > num_added_constraints;< / div >
< div class = "line" > < a id = "l00869" name = "l00869" > < / a > < span class = "lineno" > 869< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > new_level = solver-> CurrentDecisionLevel();< / div >
< div class = "line" > < a id = "l00870" name = "l00870" > < / a > < span class = "lineno" > 870< / span > < span class = "keywordflow" > if< / span > (new_level < = old_level) {< / div >
< div class = "line" > < a id = "l00871" name = "l00871" > < / a > < span class = "lineno" > 871< / span > clause = solver-> GetLastIncompatibleDecisions();< / div >
< div class = "line" > < a id = "l00872" name = "l00872" > < / a > < span class = "lineno" > 872< / span > < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a id = "l00873" name = "l00873" > < / a > < span class = "lineno" > 873< / span > }< / div >
< div class = "line" > < a id = "l00874" name = "l00874" > < / a > < span class = "lineno" > 874< / span > }< / div >
< div class = "line" > < a id = "l00875" name = "l00875" > < / a > < span class = "lineno" > 875< / span > solver-> Backtrack(0);< / div >
< div class = "line" > < a id = "l00876" name = "l00876" > < / a > < span class = "lineno" > 876< / span > < / div >
< div class = "line" > < a id = "l00877" name = "l00877" > < / a > < span class = "lineno" > 877< / span > < span class = "keywordflow" > if< / span > (clause.size() > 1) {< / div >
< div class = "line" > < a id = "l00878" name = "l00878" > < / a > < span class = "lineno" > 878< / span > < span class = "comment" > // Extract the set of arc for which at least one must be present.< / span > < / div >
< div class = "line" > < a id = "l00879" name = "l00879" > < / a > < span class = "lineno" > 879< / span > < span class = "keyword" > const< / span > absl::btree_set< Literal> clause_set(clause.begin(), clause.end());< / div >
< div class = "line" > < a id = "l00880" name = "l00880" > < / a > < span class = "lineno" > 880< / span > std::vector< ArcIndex> arcs_in_clause;< / div >
< div class = "line" > < a id = "l00881" name = "l00881" > < / a > < span class = "lineno" > 881< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > arc_index : incoming_arcs_[target]) {< / div >
< div class = "line" > < a id = "l00882" name = "l00882" > < / a > < span class = "lineno" > 882< / span > < span class = "keyword" > const< / span > Literal < a class = "code hl_variable" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > (arcs_[arc_index].presence_literals.front());< / div >
< div class = "line" > < a id = "l00883" name = "l00883" > < / a > < span class = "lineno" > 883< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_function" href = "namespacegtl.html#aae28e97bd1fa93cb0032642550da7455" > gtl::ContainsKey< / a > (clause_set, < a class = "code hl_variable" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > .Negated())) {< / div >
< div class = "line" > < a id = "l00884" name = "l00884" > < / a > < span class = "lineno" > 884< / span > arcs_in_clause.push_back(arc_index);< / div >
< div class = "line" > < a id = "l00885" name = "l00885" > < / a > < span class = "lineno" > 885< / span > }< / div >
2022-01-17 21:42:14 +01:00
< div class = "line" > < a id = "l00886" name = "l00886" > < / a > < span class = "lineno" > 886< / span > }< / div >
2022-03-04 00:11:33 +01:00
< div class = "line" > < a id = "l00887" name = "l00887" > < / a > < span class = "lineno" > 887< / span > < / div >
< div class = "line" > < a id = "l00888" name = "l00888" > < / a > < span class = "lineno" > 888< / span > < a class = "code hl_define" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (2) < < arcs_in_clause.size() < < < span class = "stringliteral" > " /" < / span > < < incoming_arcs_[target].size();< / div >
< div class = "line" > < a id = "l00889" name = "l00889" > < / a > < span class = "lineno" > 889< / span > < / div >
< div class = "line" > < a id = "l00890" name = "l00890" > < / a > < span class = "lineno" > 890< / span > ++num_added_constraints;< / div >
< div class = "line" > < a id = "l00891" name = "l00891" > < / a > < span class = "lineno" > 891< / span > std::vector< IntegerVariable> vars;< / div >
< div class = "line" > < a id = "l00892" name = "l00892" > < / a > < span class = "lineno" > 892< / span > std::vector< IntegerValue> offsets;< / div >
< div class = "line" > < a id = "l00893" name = "l00893" > < / a > < span class = "lineno" > 893< / span > std::vector< Literal> selectors;< / div >
< div class = "line" > < a id = "l00894" name = "l00894" > < / a > < span class = "lineno" > 894< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > ArcIndex< / a > < a class = "code hl_variable" href = "constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6" > a< / a > : arcs_in_clause) {< / div >
< div class = "line" > < a id = "l00895" name = "l00895" > < / a > < span class = "lineno" > 895< / span > vars.push_back(arcs_[< a class = "code hl_variable" href = "constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6" > a< / a > ].tail_var);< / div >
< div class = "line" > < a id = "l00896" name = "l00896" > < / a > < span class = "lineno" > 896< / span > offsets.push_back(arcs_[< a class = "code hl_variable" href = "constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6" > a< / a > ].offset);< / div >
< div class = "line" > < a id = "l00897" name = "l00897" > < / a > < span class = "lineno" > 897< / span > selectors.push_back(Literal(arcs_[< a class = "code hl_variable" href = "constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6" > a< / a > ].presence_literals.front()));< / div >
< div class = "line" > < a id = "l00898" name = "l00898" > < / a > < span class = "lineno" > 898< / span > }< / div >
< div class = "line" > < a id = "l00899" name = "l00899" > < / a > < span class = "lineno" > 899< / span > < a class = "code hl_variable" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > -> Add(< a class = "code hl_function" href = "namespaceoperations__research_1_1sat.html#a76ccbd25cf01d0ca822a1078a7193607" > GreaterThanAtLeastOneOf< / a > (target, vars, offsets, selectors));< / div >
< div class = "line" > < a id = "l00900" name = "l00900" > < / a > < span class = "lineno" > 900< / span > < span class = "keywordflow" > if< / span > (!solver-> FinishPropagation()) < span class = "keywordflow" > return< / span > num_added_constraints;< / div >
< div class = "line" > < a id = "l00901" name = "l00901" > < / a > < span class = "lineno" > 901< / span > }< / div >
< div class = "line" > < a id = "l00902" name = "l00902" > < / a > < span class = "lineno" > 902< / span > }< / div >
< div class = "line" > < a id = "l00903" name = "l00903" > < / a > < span class = "lineno" > 903< / span > < / div >
< div class = "line" > < a id = "l00904" name = "l00904" > < / a > < span class = "lineno" > 904< / span > < span class = "keywordflow" > return< / span > num_added_constraints;< / div >
< div class = "line" > < a id = "l00905" name = "l00905" > < / a > < span class = "lineno" > 905< / span > }< / div >
< div class = "line" > < a id = "l00906" name = "l00906" > < / a > < span class = "lineno" > 906< / span > < / div >
< div class = "line" > < a id = "l00907" name = "l00907" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#ab802de47d15374aab8e3721d5fc508e5" > 907< / a > < / span > < span class = "keywordtype" > int< / span > < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#ab802de47d15374aab8e3721d5fc508e5" > PrecedencesPropagator::AddGreaterThanAtLeastOneOfConstraints< / a > (< a class = "code hl_class" href = "classoperations__research_1_1sat_1_1_model.html" > Model< / a > * < a class = "code hl_variable" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > ) {< / div >
< div class = "line" > < a id = "l00908" name = "l00908" > < / a > < span class = "lineno" > 908< / span > < a class = "code hl_define" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Detecting GreaterThanAtLeastOneOf() constraints..." < / span > ;< / div >
< div class = "line" > < a id = "l00909" name = "l00909" > < / a > < span class = "lineno" > 909< / span > < span class = "keyword" > auto< / span > * < a class = "code hl_variable" href = "cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21" > time_limit< / a > = < a class = "code hl_variable" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > -> GetOrCreate< < a class = "code hl_class" href = "classoperations__research_1_1_time_limit.html" > TimeLimit< / a > > ();< / div >
< div class = "line" > < a id = "l00910" name = "l00910" > < / a > < span class = "lineno" > 910< / span > < span class = "keyword" > auto< / span > * solver = < a class = "code hl_variable" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > -> GetOrCreate< < a class = "code hl_class" href = "classoperations__research_1_1sat_1_1_sat_solver.html" > SatSolver< / a > > ();< / div >
< div class = "line" > < a id = "l00911" name = "l00911" > < / a > < span class = "lineno" > 911< / span > < span class = "keyword" > auto< / span > * < a class = "code hl_variable" href = "cp__model__solver_8cc.html#a21696c8707868a3d522d1bee261f4185" > clauses< / a > = < a class = "code hl_variable" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > -> GetOrCreate< < a class = "code hl_class" href = "classoperations__research_1_1sat_1_1_literal_watchers.html" > LiteralWatchers< / a > > ();< / div >
< div class = "line" > < a id = "l00912" name = "l00912" > < / a > < span class = "lineno" > 912< / span > < span class = "keywordtype" > int< / span > num_added_constraints = 0;< / div >
< div class = "line" > < a id = "l00913" name = "l00913" > < / a > < span class = "lineno" > 913< / span > < / div >
< div class = "line" > < a id = "l00914" name = "l00914" > < / a > < span class = "lineno" > 914< / span > < span class = "comment" > // We have two possible approaches. For now, we prefer the first one except if< / span > < / div >
< div class = "line" > < a id = "l00915" name = "l00915" > < / a > < span class = "lineno" > 915< / span > < span class = "comment" > // there is too many clauses in the problem.< / span > < / div >
< div class = "line" > < a id = "l00916" name = "l00916" > < / a > < span class = "lineno" > 916< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00917" name = "l00917" > < / a > < span class = "lineno" > 917< / span > < span class = "comment" > // TODO(user): Do more extensive experiment. Remove the second approach as< / span > < / div >
< div class = "line" > < a id = "l00918" name = "l00918" > < / a > < span class = "lineno" > 918< / span > < span class = "comment" > // it is more time consuming? or identify when it make sense. Note that the< / span > < / div >
< div class = "line" > < a id = "l00919" name = "l00919" > < / a > < span class = "lineno" > 919< / span > < span class = "comment" > // first approach also allows to use " incomplete" at least one between arcs.< / span > < / div >
< div class = "line" > < a id = "l00920" name = "l00920" > < / a > < span class = "lineno" > 920< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "cp__model__solver_8cc.html#a21696c8707868a3d522d1bee261f4185" > clauses< / a > -> AllClausesInCreationOrder().size() < 1e6) {< / div >
< div class = "line" > < a id = "l00921" name = "l00921" > < / a > < span class = "lineno" > 921< / span > < span class = "comment" > // TODO(user): This does not take into account clause of size 2 since they< / span > < / div >
< div class = "line" > < a id = "l00922" name = "l00922" > < / a > < span class = "lineno" > 922< / span > < span class = "comment" > // are stored in the BinaryImplicationGraph instead. Some ideas specific< / span > < / div >
< div class = "line" > < a id = "l00923" name = "l00923" > < / a > < span class = "lineno" > 923< / span > < span class = "comment" > // to size 2:< / span > < / div >
< div class = "line" > < a id = "l00924" name = "l00924" > < / a > < span class = "lineno" > 924< / span > < span class = "comment" > // - There can be a lot of such clauses, but it might be nice to consider< / span > < / div >
< div class = "line" > < a id = "l00925" name = "l00925" > < / a > < span class = "lineno" > 925< / span > < span class = "comment" > // them. we need to experiments.< / span > < / div >
< div class = "line" > < a id = "l00926" name = "l00926" > < / a > < span class = "lineno" > 926< / span > < span class = "comment" > // - The automatic clause detection might be a better approach and it< / span > < / div >
< div class = "line" > < a id = "l00927" name = "l00927" > < / a > < span class = "lineno" > 927< / span > < span class = "comment" > // could be combined with probing.< / span > < / div >
< div class = "line" > < a id = "l00928" name = "l00928" > < / a > < span class = "lineno" > 928< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code hl_class" href = "classoperations__research_1_1sat_1_1_sat_clause.html" > SatClause< / a > * clause : < a class = "code hl_variable" href = "cp__model__solver_8cc.html#a21696c8707868a3d522d1bee261f4185" > clauses< / a > -> AllClausesInCreationOrder()) {< / div >
< div class = "line" > < a id = "l00929" name = "l00929" > < / a > < span class = "lineno" > 929< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21" > time_limit< / a > -> LimitReached()) < span class = "keywordflow" > return< / span > num_added_constraints;< / div >
< div class = "line" > < a id = "l00930" name = "l00930" > < / a > < span class = "lineno" > 930< / span > < span class = "keywordflow" > if< / span > (solver-> IsModelUnsat()) < span class = "keywordflow" > return< / span > num_added_constraints;< / div >
< div class = "line" > < a id = "l00931" name = "l00931" > < / a > < span class = "lineno" > 931< / span > num_added_constraints += AddGreaterThanAtLeastOneOfConstraintsFromClause(< / div >
< div class = "line" > < a id = "l00932" name = "l00932" > < / a > < span class = "lineno" > 932< / span > clause-> AsSpan(), < a class = "code hl_variable" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > );< / div >
< div class = "line" > < a id = "l00933" name = "l00933" > < / a > < span class = "lineno" > 933< / span > }< / div >
< div class = "line" > < a id = "l00934" name = "l00934" > < / a > < span class = "lineno" > 934< / span > < / div >
< div class = "line" > < a id = "l00935" name = "l00935" > < / a > < span class = "lineno" > 935< / span > < span class = "comment" > // It is common that there is only two alternatives to push a variable.< / span > < / div >
< div class = "line" > < a id = "l00936" name = "l00936" > < / a > < span class = "lineno" > 936< / span > < span class = "comment" > // In this case, our presolve most likely made sure that the two are< / span > < / div >
< div class = "line" > < a id = "l00937" name = "l00937" > < / a > < span class = "lineno" > 937< / span > < span class = "comment" > // controlled by a single Boolean. This allows to detect this and add the< / span > < / div >
< div class = "line" > < a id = "l00938" name = "l00938" > < / a > < span class = "lineno" > 938< / span > < span class = "comment" > // appropriate greater than at least one of.< / span > < / div >
< div class = "line" > < a id = "l00939" name = "l00939" > < / a > < span class = "lineno" > 939< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > num_booleans = solver-> NumVariables();< / div >
< div class = "line" > < a id = "l00940" name = "l00940" > < / a > < span class = "lineno" > 940< / span > < span class = "keywordflow" > if< / span > (num_booleans < 1e6) {< / div >
< div class = "line" > < a id = "l00941" name = "l00941" > < / a > < span class = "lineno" > 941< / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < num_booleans; ++i) {< / div >
< div class = "line" > < a id = "l00942" name = "l00942" > < / a > < span class = "lineno" > 942< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21" > time_limit< / a > -> LimitReached()) < span class = "keywordflow" > return< / span > num_added_constraints;< / div >
< div class = "line" > < a id = "l00943" name = "l00943" > < / a > < span class = "lineno" > 943< / span > < span class = "keywordflow" > if< / span > (solver-> IsModelUnsat()) < span class = "keywordflow" > return< / span > num_added_constraints;< / div >
< div class = "line" > < a id = "l00944" name = "l00944" > < / a > < span class = "lineno" > 944< / span > num_added_constraints +=< / div >
< div class = "line" > < a id = "l00945" name = "l00945" > < / a > < span class = "lineno" > 945< / span > AddGreaterThanAtLeastOneOfConstraintsFromClause(< / div >
< div class = "line" > < a id = "l00946" name = "l00946" > < / a > < span class = "lineno" > 946< / span > {< a class = "code hl_class" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > (BooleanVariable(i), < span class = "keyword" > true< / span > ),< / div >
< div class = "line" > < a id = "l00947" name = "l00947" > < / a > < span class = "lineno" > 947< / span > < a class = "code hl_class" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > (BooleanVariable(i), < span class = "keyword" > false< / span > )},< / div >
< div class = "line" > < a id = "l00948" name = "l00948" > < / a > < span class = "lineno" > 948< / span > < a class = "code hl_variable" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > );< / div >
< div class = "line" > < a id = "l00949" name = "l00949" > < / a > < span class = "lineno" > 949< / span > }< / div >
< div class = "line" > < a id = "l00950" name = "l00950" > < / a > < span class = "lineno" > 950< / span > }< / div >
< div class = "line" > < a id = "l00951" name = "l00951" > < / a > < span class = "lineno" > 951< / span > < / div >
< div class = "line" > < a id = "l00952" name = "l00952" > < / a > < span class = "lineno" > 952< / span > } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a id = "l00953" name = "l00953" > < / a > < span class = "lineno" > 953< / span > num_added_constraints +=< / div >
< div class = "line" > < a id = "l00954" name = "l00954" > < / a > < span class = "lineno" > 954< / span > AddGreaterThanAtLeastOneOfConstraintsWithClauseAutoDetection(< a class = "code hl_variable" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > );< / div >
< div class = "line" > < a id = "l00955" name = "l00955" > < / a > < span class = "lineno" > 955< / span > }< / div >
< div class = "line" > < a id = "l00956" name = "l00956" > < / a > < span class = "lineno" > 956< / span > < / div >
< div class = "line" > < a id = "l00957" name = "l00957" > < / a > < span class = "lineno" > 957< / span > < a class = "code hl_define" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Added " < / span > < < num_added_constraints< / div >
< div class = "line" > < a id = "l00958" name = "l00958" > < / a > < span class = "lineno" > 958< / span > < < < span class = "stringliteral" > " GreaterThanAtLeastOneOf() constraints." < / span > ;< / div >
< div class = "line" > < a id = "l00959" name = "l00959" > < / a > < span class = "lineno" > 959< / span > < span class = "keywordflow" > return< / span > num_added_constraints;< / div >
< div class = "line" > < a id = "l00960" name = "l00960" > < / a > < span class = "lineno" > 960< / span > }< / div >
< div class = "line" > < a id = "l00961" name = "l00961" > < / a > < span class = "lineno" > 961< / span > < / div >
< div class = "line" > < a id = "l00962" name = "l00962" > < / a > < span class = "lineno" > 962< / span > } < span class = "comment" > // namespace sat< / span > < / div >
< div class = "line" > < a id = "l00963" name = "l00963" > < / a > < span class = "lineno" > 963< / span > } < span class = "comment" > // namespace operations_research< / span > < / div >
2022-01-17 21:42:14 +01:00
< div class = "ttc" id = "aalldiff__cst_8cc_html_a26e6db9bcc64b584051ecc28171ed11f" > < div class = "ttname" > < a href = "alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f" > max< / a > < / div > < div class = "ttdeci" > int64_t max< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "alldiff__cst_8cc_source.html#l00140" > alldiff_cst.cc:140< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html" > < div class = "ttname" > < a href = "base_2logging_8h.html" > logging.h< / a > < / div > < / div >
< 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 >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "abase_2logging_8h_html_a46e69120fbd3b36e6960e096d23b66f0" > < div class = "ttname" > < a href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > < / div > < div class = "ttdeci" > #define DCHECK_NE(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00892" > base/logging.h:892< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_a7c0ce053b28d53aa4eaf3eb7fb71663b" > < div class = "ttname" > < a href = "base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b" > CHECK_EQ< / a > < / div > < div class = "ttdeci" > #define CHECK_EQ(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00703" > base/logging.h:703< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_a7e03ec13560fa94a8fea569960d7efc6" > < div class = "ttname" > < a href = "base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6" > CHECK_GT< / a > < / div > < div class = "ttdeci" > #define CHECK_GT(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00708" > base/logging.h:708< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_ab25e01a2942b821d66371fc68d53f2eb" > < div class = "ttname" > < a href = "base_2logging_8h.html#ab25e01a2942b821d66371fc68d53f2eb" > CHECK_NE< / a > < / div > < div class = "ttdeci" > #define CHECK_NE(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00704" > base/logging.h:704< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_ab4f56aa24c4c9cddc47a6abd2d747f9a" > < div class = "ttname" > < a href = "base_2logging_8h.html#ab4f56aa24c4c9cddc47a6abd2d747f9a" > DCHECK_GT< / a > < / div > < div class = "ttdeci" > #define DCHECK_GT(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00896" > base/logging.h:896< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_ae17f8119c108cf3070bad3449c7e0006" > < div class = "ttname" > < a href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > < / div > < div class = "ttdeci" > #define DCHECK(condition)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00890" > base/logging.h:890< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_ae89df3243bbb8341130c7b3f44145ea0" > < div class = "ttname" > < a href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > < / div > < div class = "ttdeci" > #define DCHECK_EQ(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00891" > base/logging.h:891< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_afcaa7cadd41741bb855c2ada1d2ef927" > < div class = "ttname" > < a href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > < / div > < div class = "ttdeci" > #define VLOG(verboselevel)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00984" > base/logging.h:984< / a > < / div > < / div >
< div class = "ttc" id = "abitset_8h_html" > < div class = "ttname" > < a href = "bitset_8h.html" > bitset.h< / a > < / div > < / div >
2022-01-17 21:42:14 +01:00
< div class = "ttc" id = "aclassabsl_1_1_strong_vector_html" > < div class = "ttname" > < a href = "classabsl_1_1_strong_vector.html" > absl::StrongVector< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "strong__vector_8h_source.html#l00076" > strong_vector.h:76< / a > < / div > < / div >
< div class = "ttc" id = "aclassabsl_1_1_strong_vector_html_a058bda4957df6a97b1ea6c9fd783f672" > < div class = "ttname" > < a href = "classabsl_1_1_strong_vector.html#a058bda4957df6a97b1ea6c9fd783f672" > absl::StrongVector::pop_back< / a > < / div > < div class = "ttdeci" > void pop_back()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "strong__vector_8h_source.html#l00168" > strong_vector.h:168< / a > < / div > < / div >
< div class = "ttc" id = "aclassabsl_1_1_strong_vector_html_a4e3670a285a3642eaa07f66766cffa72" > < div class = "ttname" > < a href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > absl::StrongVector::resize< / a > < / div > < div class = "ttdeci" > void resize(size_type new_size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "strong__vector_8h_source.html#l00150" > strong_vector.h:150< / a > < / div > < / div >
< div class = "ttc" id = "aclassabsl_1_1_strong_vector_html_a60304b65bf89363bcc3165d3cde67f86" > < div class = "ttname" > < a href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > absl::StrongVector::size< / a > < / div > < div class = "ttdeci" > size_type size() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "strong__vector_8h_source.html#l00147" > strong_vector.h:147< / a > < / div > < / div >
< div class = "ttc" id = "aclassabsl_1_1_strong_vector_html_a6a48363b4355f6f5b441637774f79a59" > < div class = "ttname" > < a href = "classabsl_1_1_strong_vector.html#a6a48363b4355f6f5b441637774f79a59" > absl::StrongVector::front< / a > < / div > < div class = "ttdeci" > reference front()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "strong__vector_8h_source.html#l00172" > strong_vector.h:172< / a > < / div > < / div >
< div class = "ttc" id = "aclassabsl_1_1_strong_vector_html_a9263000d449fdccb6cb70b303063e60b" > < div class = "ttname" > < a href = "classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b" > absl::StrongVector::push_back< / a > < / div > < div class = "ttdeci" > void push_back(const value_type & x)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "strong__vector_8h_source.html#l00158" > strong_vector.h:158< / a > < / div > < / div >
< div class = "ttc" id = "aclassabsl_1_1_strong_vector_html_af71e6c1eccbc12e9339c00a86a981a43" > < div class = "ttname" > < a href = "classabsl_1_1_strong_vector.html#af71e6c1eccbc12e9339c00a86a981a43" > absl::StrongVector::back< / a > < / div > < div class = "ttdeci" > reference back()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "strong__vector_8h_source.html#l00174" > strong_vector.h:174< / a > < / div > < / div >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1_sparse_bitset_html_a41f798a04019147982b29c576ff9d8b7" > < div class = "ttname" > < a href = "classoperations__research_1_1_sparse_bitset.html#a41f798a04019147982b29c576ff9d8b7" > operations_research::SparseBitset::Set< / a > < / div > < div class = "ttdeci" > void Set(IntegerType index)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bitset_8h_source.html#l00809" > bitset.h:809< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_sparse_bitset_html_a7187b794b93178bdf96f632d1f5d8c03" > < div class = "ttname" > < a href = "classoperations__research_1_1_sparse_bitset.html#a7187b794b93178bdf96f632d1f5d8c03" > operations_research::SparseBitset::PositionsSetAtLeastOnce< / a > < / div > < div class = "ttdeci" > const std::vector< IntegerType > & PositionsSetAtLeastOnce() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bitset_8h_source.html#l00819" > bitset.h:819< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_sparse_bitset_html_ae09e38958e558d2c776bc555a0dc2fc7" > < div class = "ttname" > < a href = "classoperations__research_1_1_sparse_bitset.html#ae09e38958e558d2c776bc555a0dc2fc7" > operations_research::SparseBitset::ClearAndResize< / a > < / div > < div class = "ttdeci" > void ClearAndResize(IntegerType size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bitset_8h_source.html#l00784" > bitset.h:784< / a > < / div > < / div >
2022-01-17 21:42:14 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1_time_limit_html" > < div class = "ttname" > < a href = "classoperations__research_1_1_time_limit.html" > operations_research::TimeLimit< / a > < / div > < div class = "ttdoc" > A simple class to enforce both an elapsed time limit and a deterministic time limit in the same threa...< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "time__limit_8h_source.html#l00106" > time_limit.h:106< / a > < / div > < / div >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_generic_literal_watcher_html_aaede7c755aad90772efda6db087f3413" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_generic_literal_watcher.html#aaede7c755aad90772efda6db087f3413" > operations_research::sat::GenericLiteralWatcher::WatchLowerBound< / a > < / div > < div class = "ttdeci" > void WatchLowerBound(IntegerVariable var, int id, int watch_index=-1)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8h_source.html#l01569" > integer.h:1569< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_integer_trail_html_a05e837bb93eeabbbd94e8f690dd59d32" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_integer_trail.html#a05e837bb93eeabbbd94e8f690dd59d32" > operations_research::sat::IntegerTrail::Enqueue< / a > < / div > < div class = "ttdeci" > ABSL_MUST_USE_RESULT bool Enqueue(IntegerLiteral i_lit, absl::Span< const Literal > literal_reason, absl::Span< const IntegerLiteral > integer_reason)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8cc_source.html#l01048" > integer.cc:1048< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_integer_trail_html_a309d057e12c8d4d393f13975eea2e2a9" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_integer_trail.html#a309d057e12c8d4d393f13975eea2e2a9" > operations_research::sat::IntegerTrail::IsCurrentlyIgnored< / a > < / div > < div class = "ttdeci" > bool IsCurrentlyIgnored(IntegerVariable i) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8h_source.html#l00705" > integer.h:705< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_integer_trail_html_a615d87982145007855f2102262cf773c" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_integer_trail.html#a615d87982145007855f2102262cf773c" > operations_research::sat::IntegerTrail::LowerBoundAsLiteral< / a > < / div > < div class = "ttdeci" > IntegerLiteral LowerBoundAsLiteral(IntegerVariable i) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8h_source.html#l01477" > integer.h:1477< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_integer_trail_html_a6d55b5b9adc499095dd57dd0c2b6c7df" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_integer_trail.html#a6d55b5b9adc499095dd57dd0c2b6c7df" > operations_research::sat::IntegerTrail::ReportConflict< / a > < / div > < div class = "ttdeci" > bool ReportConflict(absl::Span< const Literal > literal_reason, absl::Span< const IntegerLiteral > integer_reason)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8h_source.html#l00924" > integer.h:924< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_integer_trail_html_a79322fd8dff49ab2eab22c0570aba594" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_integer_trail.html#a79322fd8dff49ab2eab22c0570aba594" > operations_research::sat::IntegerTrail::EnqueueLiteral< / a > < / div > < div class = "ttdeci" > void EnqueueLiteral(Literal literal, absl::Span< const Literal > literal_reason, absl::Span< const IntegerLiteral > integer_reason)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8cc_source.html#l01162" > integer.cc:1162< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_integer_trail_html_a8b6d5a25e6ad3d28a85b1924471e2cac" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac" > operations_research::sat::IntegerTrail::UpperBound< / a > < / div > < div class = "ttdeci" > IntegerValue UpperBound(IntegerVariable i) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8h_source.html#l01449" > integer.h:1449< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_integer_trail_html_aa981297d0a648cd5c3fef40e2edebf8a" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_integer_trail.html#aa981297d0a648cd5c3fef40e2edebf8a" > operations_research::sat::IntegerTrail::RelaxLinearReason< / a > < / div > < div class = "ttdeci" > void RelaxLinearReason(IntegerValue slack, absl::Span< const IntegerValue > coeffs, std::vector< IntegerLiteral > *reason) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8cc_source.html#l00826" > integer.cc:826< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_integer_trail_html_ab857cd2aead68952d9fe92a8ad8d3ac9" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9" > operations_research::sat::IntegerTrail::LowerBound< / a > < / div > < div class = "ttdeci" > IntegerValue LowerBound(IntegerVariable i) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8h_source.html#l01445" > integer.h:1445< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_integer_trail_html_ac0a2e8c6619af74b42472bfa9a9e6465" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_integer_trail.html#ac0a2e8c6619af74b42472bfa9a9e6465" > operations_research::sat::IntegerTrail::UpperBoundAsLiteral< / a > < / div > < div class = "ttdeci" > IntegerLiteral UpperBoundAsLiteral(IntegerVariable i) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8h_source.html#l01482" > integer.h:1482< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_integer_trail_html_ac8db20a5dab063aa3ca64a4ae1202d4c" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_integer_trail.html#ac8db20a5dab063aa3ca64a4ae1202d4c" > operations_research::sat::IntegerTrail::IsIgnoredLiteral< / a > < / div > < div class = "ttdeci" > Literal IsIgnoredLiteral(IntegerVariable i) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8h_source.html#l00710" > integer.h:710< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_integer_trail_html_acc1aaae243ed4381e84f8309aacb3bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_integer_trail.html#acc1aaae243ed4381e84f8309aacb3bbc" > operations_research::sat::IntegerTrail::IsOptional< / a > < / div > < div class = "ttdeci" > bool IsOptional(IntegerVariable i) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8h_source.html#l00702" > integer.h:702< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_integer_trail_html_af88a18429909498405c450015f0a223a" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_integer_trail.html#af88a18429909498405c450015f0a223a" > operations_research::sat::IntegerTrail::NumIntegerVariables< / a > < / div > < div class = "ttdeci" > IntegerVariable NumIntegerVariables() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8h_source.html#l00645" > integer.h:645< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_literal_html" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_literal.html" > operations_research::sat::Literal< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__base_8h_source.html#l00067" > sat_base.h:67< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_literal_html_a886e9c024f7209181c0a850b6e90c644" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_literal.html#a886e9c024f7209181c0a850b6e90c644" > operations_research::sat::Literal::Negated< / a > < / div > < div class = "ttdeci" > Literal Negated() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__base_8h_source.html#l00094" > sat_base.h:94< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_literal_watchers_html" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_literal_watchers.html" > operations_research::sat::LiteralWatchers< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "clause_8h_source.html#l00163" > clause.h:163< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_model_html" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_model.html" > operations_research::sat::Model< / a > < / div > < div class = "ttdoc" > Class that owns everything related to a particular optimization model.< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat_2model_8h_source.html#l00042" > sat/model.h:42< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_precedences_propagator_html_a09ebe3a2f1825d6366649cd157e5020f" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#a09ebe3a2f1825d6366649cd157e5020f" > operations_research::sat::PrecedencesPropagator::AddPrecedenceReason< / a > < / div > < div class = "ttdeci" > void AddPrecedenceReason(int arc_index, IntegerValue min_offset, std::vector< Literal > *literal_reason, std::vector< IntegerLiteral > *integer_reason) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "precedences_8cc_source.html#l00224" > precedences.cc:224< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_precedences_propagator_html_a880ad5f7514aee33f81302d8af2a7be2" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#a880ad5f7514aee33f81302d8af2a7be2" > operations_research::sat::PrecedencesPropagator::ComputePrecedences< / a > < / div > < div class = "ttdeci" > void ComputePrecedences(const std::vector< IntegerVariable > & vars, std::vector< IntegerPrecedences > *output)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "precedences_8cc_source.html#l00147" > precedences.cc:147< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_precedences_propagator_html_ab802de47d15374aab8e3721d5fc508e5" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#ab802de47d15374aab8e3721d5fc508e5" > operations_research::sat::PrecedencesPropagator::AddGreaterThanAtLeastOneOfConstraints< / a > < / div > < div class = "ttdeci" > int AddGreaterThanAtLeastOneOfConstraints(Model *model)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "precedences_8cc_source.html#l00907" > precedences.cc:907< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_precedences_propagator_html_ac1fe9b1f2b978c4283e42f12e586eb1e" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#ac1fe9b1f2b978c4283e42f12e586eb1e" > operations_research::sat::PrecedencesPropagator::Propagate< / a > < / div > < div class = "ttdeci" > bool Propagate() final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "precedences_8cc_source.html#l00055" > precedences.cc:55< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_precedences_propagator_html_ae20e3965a974e3a5fe816c033a94e568" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#ae20e3965a974e3a5fe816c033a94e568" > operations_research::sat::PrecedencesPropagator::Untrail< / a > < / div > < div class = "ttdeci" > void Untrail(const Trail & trail, int trail_index) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "precedences_8cc_source.html#l00123" > precedences.cc:123< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_precedences_propagator_html_af3c64e10aa2bb2cc1d3615d800f7c71c" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_precedences_propagator.html#af3c64e10aa2bb2cc1d3615d800f7c71c" > operations_research::sat::PrecedencesPropagator::PropagateOutgoingArcs< / a > < / div > < div class = "ttdeci" > bool PropagateOutgoingArcs(IntegerVariable var)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "precedences_8cc_source.html#l00108" > precedences.cc:108< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_sat_clause_html" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_sat_clause.html" > operations_research::sat::SatClause< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "clause_8h_source.html#l00054" > clause.h:54< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_sat_propagator_html_a06e2c6f3432a89d0160b831d48afd8b7" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_sat_propagator.html#a06e2c6f3432a89d0160b831d48afd8b7" > operations_research::sat::SatPropagator::propagation_trail_index_< / a > < / div > < div class = "ttdeci" > int propagation_trail_index_< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__base_8h_source.html#l00516" > sat_base.h:516< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_sat_solver_html" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_sat_solver.html" > operations_research::sat::SatSolver< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__solver_8h_source.html#l00061" > sat_solver.h:61< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_trail_html" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_trail.html" > operations_research::sat::Trail< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__base_8h_source.html#l00236" > sat_base.h:236< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_trail_html_a4793952607a98dfddfbcc17abfabbb4b" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_trail.html#a4793952607a98dfddfbcc17abfabbb4b" > operations_research::sat::Trail::Assignment< / a > < / div > < div class = "ttdeci" > const VariablesAssignment & Assignment() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__base_8h_source.html#l00383" > sat_base.h:383< / a > < / div > < / div >
< 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#l00381" > sat_base.h:381< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_trail_html_ad63c4461a1384629cb99413c6df8b9ca" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_trail.html#ad63c4461a1384629cb99413c6df8b9ca" > operations_research::sat::Trail::CurrentDecisionLevel< / a > < / div > < div class = "ttdeci" > int CurrentDecisionLevel() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__base_8h_source.html#l00358" > sat_base.h:358< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_variables_assignment_html_a5300129913f51dcb0b1c531e3248490e" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_variables_assignment.html#a5300129913f51dcb0b1c531e3248490e" > operations_research::sat::VariablesAssignment::LiteralIsTrue< / a > < / div > < div class = "ttdeci" > bool LiteralIsTrue(Literal literal) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__base_8h_source.html#l00153" > sat_base.h:153< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_variables_assignment_html_acfd1646011e643f58fd7dc66d9cc90a5" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_variables_assignment.html#acfd1646011e643f58fd7dc66d9cc90a5" > operations_research::sat::VariablesAssignment::LiteralIsFalse< / a > < / div > < div class = "ttdeci" > bool LiteralIsFalse(Literal literal) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__base_8h_source.html#l00150" > sat_base.h:150< / a > < / div > < / div >
2022-01-17 21:42:14 +01:00
< div class = "ttc" id = "aclause_8h_html" > < div class = "ttname" > < a href = "clause_8h.html" > clause.h< / a > < / div > < / div >
< div class = "ttc" id = "acleanup_8h_html" > < div class = "ttname" > < a href = "cleanup_8h.html" > cleanup.h< / a > < / div > < / div >
< div class = "ttc" id = "aconstraint__solver_2table_8cc_html_a9293e4d29cac928301645070dd307683" > < div class = "ttname" > < a href = "constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683" > b< / a > < / div > < div class = "ttdeci" > int64_t b< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "constraint__solver_2table_8cc_source.html#l00047" > constraint_solver/table.cc:47< / a > < / div > < / div >
< div class = "ttc" id = "aconstraint__solver_2table_8cc_html_acb18315d548212835cd8ed4287e6c0b6" > < div class = "ttname" > < a href = "constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6" > a< / a > < / div > < div class = "ttdeci" > int64_t a< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "constraint__solver_2table_8cc_source.html#l00046" > constraint_solver/table.cc:46< / a > < / div > < / div >
< div class = "ttc" id = "acp__constraints_8h_html" > < div class = "ttname" > < a href = "cp__constraints_8h.html" > cp_constraints.h< / a > < / div > < / div >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "acp__model__solver_8cc_html_a21696c8707868a3d522d1bee261f4185" > < div class = "ttname" > < a href = "cp__model__solver_8cc.html#a21696c8707868a3d522d1bee261f4185" > clauses< / a > < / div > < div class = "ttdeci" > SharedClausesManager * clauses< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__solver_8cc_source.html#l02056" > cp_model_solver.cc:2056< / a > < / div > < / div >
< div class = "ttc" id = "acp__model__solver_8cc_html_aec8af5c1be4e1b6d4330e1161028de21" > < div class = "ttname" > < a href = "cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21" > time_limit< / a > < / div > < div class = "ttdeci" > ModelSharedTimeLimit * time_limit< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__solver_8cc_source.html#l02050" > cp_model_solver.cc:2050< / a > < / div > < / div >
2022-01-17 21:42:14 +01:00
< div class = "ttc" id = "ademon__profiler_8cc_html_ac072af30c4ffbc834bb4c681f6ecb514" > < div class = "ttname" > < a href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > < / div > < div class = "ttdeci" > int64_t value< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "demon__profiler_8cc_source.html#l00044" > demon_profiler.cc:44< / a > < / div > < / div >
< div class = "ttc" id = "aexpr__array_8cc_html_a472a99923cbe11ae7b5a5d157d9ad465" > < div class = "ttname" > < a href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > < / div > < div class = "ttdeci" > IntVar * var< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "expr__array_8cc_source.html#l01874" > expr_array.cc:1874< / a > < / div > < / div >
< div class = "ttc" id = "agurobi__interface_8cc_html_a0728f23c9a47655d38e0bf1a2f200bcf" > < div class = "ttname" > < a href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > < / div > < div class = "ttdeci" > GRBmodel * model< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "gurobi__interface_8cc_source.html#l00274" > gurobi_interface.cc:274< / a > < / div > < / div >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "ainteger_8h_html" > < div class = "ttname" > < a href = "integer_8h.html" > integer.h< / a > < / div > < / div >
< div class = "ttc" id = "alocal__search_8cc_html_a30b5726116ac85ea64777e5d6e333894" > < div class = "ttname" > < a href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > < / div > < div class = "ttdeci" > int arc< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "local__search_8cc_source.html#l02751" > local_search.cc:2751< / a > < / div > < / div >
< div class = "ttc" id = "alocal__search_8cc_html_a750b5d744c39a06bfb13e6eb010e35d0" > < div class = "ttname" > < a href = "local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > < / div > < div class = "ttdeci" > int index< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "local__search_8cc_source.html#l02750" > local_search.cc:2750< / a > < / div > < / div >
< div class = "ttc" id = "amap__util_8h_html" > < div class = "ttname" > < a href = "map__util_8h.html" > map_util.h< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceabsl_html_a01547ab811df98c71089487f394ec259" > < div class = "ttname" > < a href = "namespaceabsl.html#a01547ab811df98c71089487f394ec259" > absl::MakeCleanup< / a > < / div > < div class = "ttdeci" > absl::Cleanup< absl::decay_t< Callback > > MakeCleanup(Callback & & callback)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cleanup_8h_source.html#l00125" > cleanup.h:125< / a > < / div > < / div >
2022-01-17 21:42:14 +01:00
< div class = "ttc" id = "anamespacegtl_html_a288a1dc92da5d3ad62d4bc4cec9e8b1d" > < div class = "ttname" > < a href = "namespacegtl.html#a288a1dc92da5d3ad62d4bc4cec9e8b1d" > gtl::STLSortAndRemoveDuplicates< / a > < / div > < div class = "ttdeci" > void STLSortAndRemoveDuplicates(T *v, const LessFunc & less_func)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "stl__util_8h_source.html#l00058" > stl_util.h:58< / a > < / div > < / div >
< div class = "ttc" id = "anamespacegtl_html_aae28e97bd1fa93cb0032642550da7455" > < div class = "ttname" > < a href = "namespacegtl.html#aae28e97bd1fa93cb0032642550da7455" > gtl::ContainsKey< / a > < / div > < div class = "ttdeci" > bool ContainsKey(const Collection & collection, const Key & key)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "map__util_8h_source.html#l00200" > map_util.h:200< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ac89c7b45754e9a6bdabc08bea586fc4e" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ac89c7b45754e9a6bdabc08bea586fc4e" > operations_research::glop::Index< / a > < / div > < div class = "ttdeci" > int32_t Index< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00038" > lp_types.h:38< / a > < / div > < / div >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "anamespaceoperations__research_1_1sat_html_a3ad49ae9019c528851f6fd084479a567" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1sat.html#a3ad49ae9019c528851f6fd084479a567" > operations_research::sat::LowerBound< / a > < / div > < div class = "ttdeci" > std::function< int64_t(const Model & )> LowerBound(IntegerVariable v)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8h_source.html#l01663" > integer.h:1663< / a > < / div > < / div >
2022-01-17 21:42:14 +01:00
< div class = "ttc" id = "anamespaceoperations__research_1_1sat_html_a5bd8c44473618b7eafd33ba978db2f06" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06" > operations_research::sat::kNoIntegerVariable< / a > < / div > < div class = "ttdeci" > const IntegerVariable kNoIntegerVariable(-1)< / div > < / div >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "anamespaceoperations__research_1_1sat_html_a76ccbd25cf01d0ca822a1078a7193607" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1sat.html#a76ccbd25cf01d0ca822a1078a7193607" > operations_research::sat::GreaterThanAtLeastOneOf< / a > < / div > < div class = "ttdeci" > std::function< void(Model *)> GreaterThanAtLeastOneOf(IntegerVariable target_var, const absl::Span< const IntegerVariable > vars, const absl::Span< const IntegerValue > offsets, const absl::Span< const Literal > selectors)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__constraints_8h_source.html#l00125" > cp_constraints.h:125< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1sat_html_aae43e784db06c0974ce59ebbe8dd2b22" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22" > operations_research::sat::NegationOf< / a > < / div > < div class = "ttdeci" > std::vector< IntegerVariable > NegationOf(const std::vector< IntegerVariable > & vars)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8cc_source.html#l00047" > integer.cc:47< / a > < / div > < / div >
2022-01-17 21:42:14 +01:00
< div class = "ttc" id = "anamespaceoperations__research_html" > < div class = "ttname" > < a href = "namespaceoperations__research.html" > operations_research< / a > < / div > < div class = "ttdoc" > Collection of objects used to extend the Constraint Solver library.< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dense__doubly__linked__list_8h_source.html#l00021" > dense_doubly_linked_list.h:21< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_html_aecf320bda6e95d1edaf3a546673e3e6b" > < div class = "ttname" > < a href = "namespaceoperations__research.html#aecf320bda6e95d1edaf3a546673e3e6b" > operations_research::ArcIndex< / a > < / div > < div class = "ttdeci" > int32_t ArcIndex< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "ebert__graph_8h_source.html#l00202" > ebert_graph.h:202< / a > < / div > < / div >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "aoptimization_8cc_html_af63dcc00f2023fdf498e0829e6fb8a6b" > < div class = "ttname" > < a href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > < / div > < div class = "ttdeci" > Literal literal< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "optimization_8cc_source.html#l00089" > optimization.cc:89< / a > < / div > < / div >
2022-01-17 21:42:14 +01:00
< div class = "ttc" id = "aprecedences_8h_html" > < div class = "ttname" > < a href = "precedences_8h.html" > precedences.h< / a > < / div > < / div >
< div class = "ttc" id = "arouting__flow_8cc_html_a64e7efc5529154ba56903e75f5300990" > < div class = "ttname" > < a href = "routing__flow_8cc.html#a64e7efc5529154ba56903e75f5300990" > tail< / a > < / div > < div class = "ttdeci" > int64_t tail< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "routing__flow_8cc_source.html#l00149" > routing_flow.cc:149< / a > < / div > < / div >
< div class = "ttc" id = "arouting__flow_8cc_html_afca32f65388659a4b0956496169488b4" > < div class = "ttname" > < a href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > < / div > < div class = "ttdeci" > int64_t head< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "routing__flow_8cc_source.html#l00150" > routing_flow.cc:150< / a > < / div > < / div >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "asat_2model_8h_html" > < div class = "ttname" > < a href = "sat_2model_8h.html" > model.h< / a > < / div > < / div >
< div class = "ttc" id = "asat__base_8h_html" > < div class = "ttname" > < a href = "sat__base_8h.html" > sat_base.h< / a > < / div > < / div >
< div class = "ttc" id = "asat__solver_8h_html" > < div class = "ttname" > < a href = "sat__solver_8h.html" > sat_solver.h< / a > < / div > < / div >
2022-01-17 21:42:14 +01:00
< div class = "ttc" id = "asparse__submatrix_8cc_html_a9b7656b922ea4ec96097d7380c0e61fe" > < div class = "ttname" > < a href = "sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe" > start< / a > < / div > < div class = "ttdeci" > int64_t start< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__submatrix_8cc_source.html#l00035" > sparse_submatrix.cc:35< / a > < / div > < / div >
< div class = "ttc" id = "astl__util_8h_html" > < div class = "ttname" > < a href = "stl__util_8h.html" > stl_util.h< / a > < / div > < / div >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "astrong__integers_8h_html" > < div class = "ttname" > < a href = "strong__integers_8h.html" > strong_integers.h< / a > < / div > < / div >
2022-01-17 21:42:14 +01:00
< div class = "ttc" id = "astrong__vector_8h_html" > < div class = "ttname" > < a href = "strong__vector_8h.html" > strong_vector.h< / a > < / div > < / div >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "astructoperations__research_1_1sat_1_1_integer_literal_html_a6c233aafac25ea66d69de93a83c9be63" > < div class = "ttname" > < a href = "structoperations__research_1_1sat_1_1_integer_literal.html#a6c233aafac25ea66d69de93a83c9be63" > operations_research::sat::IntegerLiteral::GreaterOrEqual< / a > < / div > < div class = "ttdeci" > static IntegerLiteral GreaterOrEqual(IntegerVariable i, IntegerValue bound)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer_8h_source.html#l01387" > integer.h:1387< / a > < / div > < / div >
< div class = "ttc" id = "astructoperations__research_1_1sat_1_1_precedences_propagator_1_1_integer_precedences_html" > < div class = "ttname" > < a href = "structoperations__research_1_1sat_1_1_precedences_propagator_1_1_integer_precedences.html" > operations_research::sat::PrecedencesPropagator::IntegerPrecedences< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "precedences_8h_source.html#l00114" > precedences.h:114< / a > < / div > < / div >
< div class = "ttc" id = "atime__limit_8h_html" > < div class = "ttname" > < a href = "time__limit_8h.html" > time_limit.h< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< / div > <!-- fragment --> < / div > <!-- contents -->
< / div > <!-- doc - content -->
2020-09-02 09:42:51 +02:00
<!-- HTML footer for doxygen 1.8.18 -->
<!-- start footer part -->
< div id = "nav-path" class = "navpath" > <!-- id is needed for treeview function! -->
< ul >
< li class = "navelem" > < a class = "el" href = "dir_a7cc1eeded8f693d0da6c729bc88c45a.html" > ortools< / a > < / li > < li class = "navelem" > < a class = "el" href = "dir_dddac007a45022d9da6ea1dee012c3b9.html" > sat< / a > < / li > < li class = "navelem" > < a class = "el" href = "precedences_8cc.html" > precedences.cc< / a > < / li >
< li class = "footer" > Generated by
< a href = "http://www.doxygen.org/index.html" >
2022-01-17 21:42:14 +01:00
< img class = "footer" src = "doxygen.png" alt = "doxygen" / > < / a > 1.9.3 < / li >
2020-09-02 09:42:51 +02:00
< / ul >
< / div >
< / body >
< / html >
