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< div class = "title" > sat_decision.cc< / div > < / div >
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< a href = "sat__decision_8cc.html" > Go to the documentation of this file.< / a > < div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "comment" > // Copyright 2010-2018 Google LLC< / span > < / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < span class = "comment" > // Licensed under the Apache License, Version 2.0 (the " License" );< / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > // you may not use this file except in compliance with the License.< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < span class = "comment" > // You may obtain a copy of the License at< / span > < / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < span class = "comment" > // http://www.apache.org/licenses/LICENSE-2.0< / span > < / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < span class = "comment" > // Unless required by applicable law or agreed to in writing, software< / span > < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "comment" > // distributed under the License is distributed on an " AS IS" BASIS,< / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "comment" > // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.< / span > < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "comment" > // See the License for the specific language governing permissions and< / span > < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "comment" > // limitations under the License.< / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "sat__decision_8h.html" > ortools/sat/sat_decision.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "sat_2util_8h.html" > ortools/sat/util.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "keyword" > namespace < / span > < a class = "code" href = "namespaceoperations__research.html" > operations_research< / a > {< / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < span class = "keyword" > namespace < / span > sat {< / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < / div >
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< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#af3bcc41cd4c20ff0a694cbfd18cb0e1e" > 21< / a > < / span >   < a class = "code" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#af3bcc41cd4c20ff0a694cbfd18cb0e1e" > SatDecisionPolicy::SatDecisionPolicy< / a > (< a class = "code" href = "classoperations__research_1_1sat_1_1_model.html" > Model< / a > * < a class = "code" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > )< / div >
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< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   : parameters_(*(< a class = "code" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > -> GetOrCreate< SatParameters> ())),< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   trail_(*< a class = "code" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > -> GetOrCreate< < a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html" > Trail< / a > > ()),< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   random_(< a class = "code" href = "gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf" > model< / a > -> GetOrCreate< < a class = "code" href = "classoperations__research_1_1sat_1_1_model_random_generator.html" > ModelRandomGenerator< / a > > ()) {}< / div >
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< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < / div >
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< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#a19614231a107b165113595bf8edf60bf" > 26< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#a19614231a107b165113595bf8edf60bf" > SatDecisionPolicy::IncreaseNumVariables< / a > (< span class = "keywordtype" > int< / span > num_variables) {< / div >
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< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > old_num_variables = activities_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ();< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < a class = "code" href = "base_2logging_8h.html#aae2dc65d9ea248d54bf39daa986dd295" > DCHECK_GE< / a > (num_variables, activities_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ());< / div >
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< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < / div >
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< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   activities_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (num_variables, parameters_.initial_variables_activity());< / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   tie_breakers_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (num_variables, 0.0);< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   num_bumps_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (num_variables, 0);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   pq_need_update_for_var_at_trail_index_.< a class = "code" href = "classoperations__research_1_1_bit_queue64.html#a2c9e03b5ffa844d119c926de4689ce59" > IncreaseSize< / a > (num_variables);< / div >
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< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < / div >
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< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   weighted_sign_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (num_variables, 0.0);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < / div >
2020-12-07 17:47:46 +01:00
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   has_forced_polarity_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (num_variables, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   forced_polarity_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (num_variables);< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   has_target_polarity_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (num_variables, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   target_polarity_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (num_variables);< / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   var_polarity_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (num_variables);< / div >
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< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   ResetInitialPolarity(< span class = "comment" > /*from=*/< / span > old_num_variables);< / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < span class = "comment" > // Update the priority queue. Note that each addition is in O(1) because< / span > < / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < span class = "comment" > // the priority is 0.0.< / span > < / div >
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< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a21cecbc35e3da9931f94afa3229354dc" > Reserve< / a > (num_variables);< / div >
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< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "keywordflow" > if< / span > (var_ordering_is_initialized_) {< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < span class = "keywordflow" > for< / span > (BooleanVariable < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > (old_num_variables); < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > < num_variables; ++< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a260b134ff6e3aa564e8ba1f879aea3d9" > Add< / a > ({< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > , 0.0, activities_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]});< / div >
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< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   }< / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   }< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   }< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#abe906f3b347e87b5e91e7ab5609b0f36" > 55< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#abe906f3b347e87b5e91e7ab5609b0f36" > SatDecisionPolicy::BeforeConflict< / a > (< span class = "keywordtype" > int< / span > trail_index) {< / div >
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< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < span class = "keywordflow" > if< / span > (parameters_.use_erwa_heuristic()) {< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   ++num_conflicts_;< / div >
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< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   num_conflicts_stack_.push_back({trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a8ef12397d1682615bc3108c397734179" > Index< / a > (), 1});< / div >
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< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   }< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "keywordflow" > if< / span > (trail_index > target_length_) {< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   target_length_ = trail_index;< / div >
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< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   has_target_polarity_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a184fe69018ae421dcf31c964bfe40576" > assign< / a > (has_target_polarity_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > (), < span class = "keyword" > false< / span > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < trail_index; ++i) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > l = trail_[i];< / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   has_target_polarity_[l.< a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html#a6a5dcff82096cd7a7147bf996dbaa5a8" > Variable< / a > ()] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   target_polarity_[l.< a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html#a6a5dcff82096cd7a7147bf996dbaa5a8" > Variable< / a > ()] = l.< a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html#ab76ca9049d6f3f1948d7120a98765107" > IsPositive< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   }< / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   }< / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < span class = "keywordflow" > if< / span > (trail_index > best_partial_assignment_.size()) {< / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   best_partial_assignment_.assign(& trail_[0], & trail_[trail_index]);< / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   }< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   --num_conflicts_until_rephase_;< / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   RephaseIfNeeded();< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   }< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   < / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < span class = "keywordtype" > void< / span > SatDecisionPolicy::RephaseIfNeeded() {< / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < span class = "keywordflow" > if< / span > (parameters_.polarity_rephase_increment() < = 0) < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < span class = "keywordflow" > if< / span > (num_conflicts_until_rephase_ > 0) < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " End of polarity phase " < / span > < < polarity_phase_< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   < < < span class = "stringliteral" > " target_length: " < / span > < < target_length_< / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   < < < span class = "stringliteral" > " best_length: " < / span > < < best_partial_assignment_.size();< / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   ++polarity_phase_;< / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   num_conflicts_until_rephase_ =< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   parameters_.polarity_rephase_increment() * (polarity_phase_ + 1);< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   < / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < span class = "comment" > // We always reset the target each time we change phase.< / span > < / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   target_length_ = 0;< / div >
2020-12-07 17:47:46 +01:00
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   has_target_polarity_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a184fe69018ae421dcf31c964bfe40576" > assign< / a > (has_target_polarity_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > (), < span class = "keyword" > false< / span > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   < span class = "comment" > // Cycle between different initial polarities. Note that we already start by< / span > < / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   < span class = "comment" > // the default polarity, and this code is reached the first time with a< / span > < / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   < span class = "comment" > // polarity_phase_ of 1.< / span > < / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   < span class = "keywordflow" > switch< / span > (polarity_phase_ % 8) {< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   < span class = "keywordflow" > case< / span > 0:< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   ResetInitialPolarity(< span class = "comment" > /*from=*/< / span > 0);< / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   < span class = "keywordflow" > case< / span > 1:< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   UseLongestAssignmentAsInitialPolarity();< / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < span class = "keywordflow" > case< / span > 2:< / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   ResetInitialPolarity(< span class = "comment" > /*from=*/< / span > 0, < span class = "comment" > /*inverted=*/< / span > < span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < span class = "keywordflow" > case< / span > 3:< / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   UseLongestAssignmentAsInitialPolarity();< / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   < span class = "keywordflow" > case< / span > 4:< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   RandomizeCurrentPolarity();< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   < span class = "keywordflow" > case< / span > 5:< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   UseLongestAssignmentAsInitialPolarity();< / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   < span class = "keywordflow" > case< / span > 6:< / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   FlipCurrentPolarity();< / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   < span class = "keywordflow" > case< / span > 7:< / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   UseLongestAssignmentAsInitialPolarity();< / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   }< / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   }< / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#a1dc177ee88f0a7ce2e46a032e5c3cf02" > 126< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#a1dc177ee88f0a7ce2e46a032e5c3cf02" > SatDecisionPolicy::ResetDecisionHeuristic< / a > () {< / div >
2020-12-07 17:47:46 +01:00
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > num_variables = activities_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   variable_activity_increment_ = 1.0;< / div >
2020-12-07 17:47:46 +01:00
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   activities_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a184fe69018ae421dcf31c964bfe40576" > assign< / a > (num_variables, parameters_.initial_variables_activity());< / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   tie_breakers_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a184fe69018ae421dcf31c964bfe40576" > assign< / a > (num_variables, 0.0);< / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   num_bumps_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a184fe69018ae421dcf31c964bfe40576" > assign< / a > (num_variables, 0);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#aa71d36872f416feaa853788a7a7a7ef8" > Clear< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   < / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   polarity_phase_ = 0;< / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   num_conflicts_until_rephase_ = parameters_.polarity_rephase_increment();< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   < / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   ResetInitialPolarity(< span class = "comment" > /*from=*/< / span > 0);< / div >
2020-12-07 17:47:46 +01:00
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   has_target_polarity_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a184fe69018ae421dcf31c964bfe40576" > assign< / a > (num_variables, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   has_forced_polarity_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a184fe69018ae421dcf31c964bfe40576" > assign< / a > (num_variables, < span class = "keyword" > false< / span > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   best_partial_assignment_.clear();< / div >
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   < / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   num_conflicts_ = 0;< / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   num_conflicts_stack_.clear();< / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   < / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   var_ordering_is_initialized_ = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   }< / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   < / div >
2021-02-26 14:48:18 +01:00
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   < span class = "keywordtype" > void< / span > SatDecisionPolicy::ResetInitialPolarity(< span class = "keywordtype" > int< / span > from, < span class = "keywordtype" > bool< / span > inverted) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   < span class = "comment" > // Sets the initial polarity.< / span > < / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   < span class = "comment" > // TODO(user): The WEIGHTED_SIGN one are currently slightly broken because the< / span > < / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   < span class = "comment" > // weighted_sign_ is updated after this has been called. It requires a call< / span > < / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   < span class = "comment" > // to ResetDecisionHeuristic() after all the constraint have been added. Fix.< / span > < / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   < span class = "comment" > // On another hand, this is only used with SolveWithRandomParameters() that< / span > < / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   < span class = "comment" > // does call this function.< / span > < / div >
2020-12-07 17:47:46 +01:00
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > num_variables = activities_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ();< / div >
2021-02-26 14:48:18 +01:00
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   < span class = "keywordflow" > for< / span > (BooleanVariable < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > (from); < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > < num_variables; ++< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   < span class = "keywordflow" > switch< / span > (parameters_.initial_polarity()) {< / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   < span class = "keywordflow" > case< / span > SatParameters::POLARITY_TRUE:< / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   var_polarity_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ] = inverted ? false : < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   < span class = "keywordflow" > case< / span > SatParameters::POLARITY_FALSE:< / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   var_polarity_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ] = inverted ? true : < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   < span class = "keywordflow" > case< / span > SatParameters::POLARITY_RANDOM:< / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   var_polarity_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ] = std::uniform_int_distribution< int> (0, 1)(*random_);< / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   < span class = "keywordflow" > case< / span > SatParameters::POLARITY_WEIGHTED_SIGN:< / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   var_polarity_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ] = weighted_sign_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ] > 0;< / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   < span class = "keywordflow" > case< / span > SatParameters::POLARITY_REVERSE_WEIGHTED_SIGN:< / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   var_polarity_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ] = weighted_sign_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ] < 0;< / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   }< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   }< / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   }< / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   < / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   < span class = "keywordtype" > void< / span > SatDecisionPolicy::UseLongestAssignmentAsInitialPolarity() {< / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   < span class = "comment" > // In this special case, we just overwrite partially the current fixed< / span > < / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   < span class = "comment" > // polarity and reset the best best_partial_assignment_ for the next such< / span > < / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   < span class = "comment" > // phase.< / span > < / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > Literal l : best_partial_assignment_) {< / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   var_polarity_[l.Variable()] = l.IsPositive();< / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   }< / div >
2020-12-07 17:47:46 +01:00
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > 185< / span >   best_partial_assignment_.< a class = "code" href = "classabsl_1_1_strong_vector.html#ac8bb3912a3ce86b15842e79d0b421204" > clear< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   }< / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   < / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   < span class = "keywordtype" > void< / span > SatDecisionPolicy::FlipCurrentPolarity() {< / div >
2020-12-07 17:47:46 +01:00
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > num_variables = var_polarity_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   < span class = "keywordflow" > for< / span > (BooleanVariable < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ; < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > < num_variables; ++< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ) {< / div >
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   var_polarity_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ] = !var_polarity_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ];< / div >
< div class = "line" > < a name = "l00192" > < / a > < span class = "lineno" > 192< / span >   }< / div >
< div class = "line" > < a name = "l00193" > < / a > < span class = "lineno" > 193< / span >   }< / div >
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > 194< / span >   < / div >
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   < span class = "keywordtype" > void< / span > SatDecisionPolicy::RandomizeCurrentPolarity() {< / div >
2020-12-07 17:47:46 +01:00
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > num_variables = var_polarity_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   < span class = "keywordflow" > for< / span > (BooleanVariable < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ; < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > < num_variables; ++< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ) {< / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   var_polarity_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ] = std::uniform_int_distribution< int> (0, 1)(*random_);< / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   }< / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   }< / div >
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > 201< / span >   < / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   < span class = "keywordtype" > void< / span > SatDecisionPolicy::InitializeVariableOrdering() {< / div >
2020-12-07 17:47:46 +01:00
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > num_variables = activities_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > 204< / span >   < / div >
< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   < span class = "comment" > // First, extract the variables without activity, and add the other to the< / span > < / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > 206< / span >   < span class = "comment" > // priority queue.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > 207< / span >   var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#aa71d36872f416feaa853788a7a7a7ef8" > Clear< / a > ();< / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   tmp_variables_.clear();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   < span class = "keywordflow" > for< / span > (BooleanVariable < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > (0); < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > < num_variables; ++< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   < span class = "keywordflow" > if< / span > (!trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a9789bf03dba611e9be5679d6e902d0c8" > Assignment< / a > ().< a class = "code" href = "classoperations__research_1_1sat_1_1_variables_assignment.html#a49e751eb6f0e9babd957889bb8e7472d" > VariableIsAssigned< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > )) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   < span class = "keywordflow" > if< / span > (activities_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ] > 0.0) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a260b134ff6e3aa564e8ba1f879aea3d9" > Add< / a > (< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   {< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > , < span class = "keyword" > static_cast< < / span > < span class = "keywordtype" > float< / span > < span class = "keyword" > > < / span > (tie_breakers_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]), activities_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]});< / div >
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   } < span class = "keywordflow" > else< / span > {< / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   tmp_variables_.push_back(< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   }< / div >
< div class = "line" > < a name = "l00217" > < / a > < span class = "lineno" > 217< / span >   }< / div >
< div class = "line" > < a name = "l00218" > < / a > < span class = "lineno" > 218< / span >   }< / div >
< div class = "line" > < a name = "l00219" > < / a > < span class = "lineno" > 219< / span >   < / div >
< div class = "line" > < a name = "l00220" > < / a > < span class = "lineno" > 220< / span >   < span class = "comment" > // Set the order of the other according to the parameters_.< / span > < / div >
< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   < span class = "comment" > // Note that this is just a " preference" since the priority queue will kind< / span > < / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   < span class = "comment" > // of randomize this. However, it is more efficient than using the tie_breaker< / span > < / div >
< div class = "line" > < a name = "l00223" > < / a > < span class = "lineno" > 223< / span >   < span class = "comment" > // which add a big overhead on the priority queue.< / span > < / div >
< div class = "line" > < a name = "l00224" > < / a > < span class = "lineno" > 224< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00225" > < / a > < span class = "lineno" > 225< / span >   < span class = "comment" > // TODO(user): Experiment and come up with a good set of heuristics.< / span > < / div >
< div class = "line" > < a name = "l00226" > < / a > < span class = "lineno" > 226< / span >   < span class = "keywordflow" > switch< / span > (parameters_.preferred_variable_order()) {< / div >
< div class = "line" > < a name = "l00227" > < / a > < span class = "lineno" > 227< / span >   < span class = "keywordflow" > case< / span > SatParameters::IN_ORDER:< / div >
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00229" > < / a > < span class = "lineno" > 229< / span >   < span class = "keywordflow" > case< / span > SatParameters::IN_REVERSE_ORDER:< / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l00230" > < / a > < span class = "lineno" > 230< / span >   std::reverse(tmp_variables_.begin(), tmp_variables_.end());< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00231" > < / a > < span class = "lineno" > 231< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00232" > < / a > < span class = "lineno" > 232< / span >   < span class = "keywordflow" > case< / span > SatParameters::IN_RANDOM_ORDER:< / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l00233" > < / a > < span class = "lineno" > 233< / span >   std::shuffle(tmp_variables_.begin(), tmp_variables_.end(), *random_);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00235" > < / a > < span class = "lineno" > 235< / span >   }< / div >
< div class = "line" > < a name = "l00236" > < / a > < span class = "lineno" > 236< / span >   < / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   < span class = "comment" > // Add the variables without activity to the queue (in the default order)< / span > < / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l00238" > < / a > < span class = "lineno" > 238< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > BooleanVariable < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > : tmp_variables_) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00239" > < / a > < span class = "lineno" > 239< / span >   var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a260b134ff6e3aa564e8ba1f879aea3d9" > Add< / a > ({< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > , < span class = "keyword" > static_cast< < / span > < span class = "keywordtype" > float< / span > < span class = "keyword" > > < / span > (tie_breakers_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]), 0.0});< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00240" > < / a > < span class = "lineno" > 240< / span >   }< / div >
< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   < / div >
< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   < span class = "comment" > // Finish the queue initialization.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00243" > < / a > < span class = "lineno" > 243< / span >   pq_need_update_for_var_at_trail_index_.< a class = "code" href = "classoperations__research_1_1_bit_queue64.html#ab2fc4510692e040b62507dce522e0e31" > ClearAndResize< / a > (num_variables);< / div >
< div class = "line" > < a name = "l00244" > < / a > < span class = "lineno" > 244< / span >   pq_need_update_for_var_at_trail_index_.< a class = "code" href = "classoperations__research_1_1_bit_queue64.html#ad169bc2e89d7b366bfe0ee5d80083c11" > SetAllBefore< / a > (trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a8ef12397d1682615bc3108c397734179" > Index< / a > ());< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00245" > < / a > < span class = "lineno" > 245< / span >   var_ordering_is_initialized_ = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00246" > < / a > < span class = "lineno" > 246< / span >   }< / div >
< div class = "line" > < a name = "l00247" > < / a > < span class = "lineno" > 247< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00248" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#a955786dcbe82b7c4dc9924a5473ac1e8" > 248< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#a955786dcbe82b7c4dc9924a5473ac1e8" > SatDecisionPolicy::SetAssignmentPreference< / a > (< a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > < a class = "code" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > ,< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00249" > < / a > < span class = "lineno" > 249< / span >   < span class = "keywordtype" > double< / span > < a class = "code" href = "pack_8cc.html#ae42ca38a167164c07831993889216903" > weight< / a > ) {< / div >
< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   < span class = "keywordflow" > if< / span > (!parameters_.use_optimization_hints()) < span class = "keywordflow" > return< / span > ;< / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   < a class = "code" href = "base_2logging_8h.html#aae2dc65d9ea248d54bf39daa986dd295" > DCHECK_GE< / a > (< a class = "code" href = "pack_8cc.html#ae42ca38a167164c07831993889216903" > weight< / a > , 0.0);< / div >
< div class = "line" > < a name = "l00252" > < / a > < span class = "lineno" > 252< / span >   < a class = "code" href = "base_2logging_8h.html#a4395e95bab44e222cb2e77251017a0e2" > DCHECK_LE< / a > (< a class = "code" href = "pack_8cc.html#ae42ca38a167164c07831993889216903" > weight< / a > , 1.0);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00253" > < / a > < span class = "lineno" > 253< / span >   < / div >
< div class = "line" > < a name = "l00254" > < / a > < span class = "lineno" > 254< / span >   has_forced_polarity_[< a class = "code" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > .Variable()] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00255" > < / a > < span class = "lineno" > 255< / span >   forced_polarity_[< a class = "code" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > .Variable()] = < a class = "code" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > .IsPositive();< / div >
< div class = "line" > < a name = "l00256" > < / a > < span class = "lineno" > 256< / span >   < / div >
< div class = "line" > < a name = "l00257" > < / a > < span class = "lineno" > 257< / span >   < span class = "comment" > // The tie_breaker is changed, so we need to reinitialize the priority queue.< / span > < / div >
< div class = "line" > < a name = "l00258" > < / a > < span class = "lineno" > 258< / span >   < span class = "comment" > // Note that this doesn' t change the activity though.< / span > < / div >
< div class = "line" > < a name = "l00259" > < / a > < span class = "lineno" > 259< / span >   tie_breakers_[< a class = "code" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > .Variable()] = < a class = "code" href = "pack_8cc.html#ae42ca38a167164c07831993889216903" > weight< / a > ;< / div >
< div class = "line" > < a name = "l00260" > < / a > < span class = "lineno" > 260< / span >   var_ordering_is_initialized_ = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00261" > < / a > < span class = "lineno" > 261< / span >   }< / div >
< div class = "line" > < a name = "l00262" > < / a > < span class = "lineno" > 262< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00263" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#a0b5d7f31620ad7b364e7415c47ee5e0d" > 263< / a > < / span >   std::vector< std::pair< Literal, double> > < a class = "code" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#a0b5d7f31620ad7b364e7415c47ee5e0d" > SatDecisionPolicy::AllPreferences< / a > ()< span class = "keyword" > < / span > < / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00264" > < / a > < span class = "lineno" > 264< / span >   < span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00265" > < / a > < span class = "lineno" > 265< / span >   std::vector< std::pair< Literal, double> > prefs;< / div >
2020-12-07 17:47:46 +01:00
< div class = "line" > < a name = "l00266" > < / a > < span class = "lineno" > 266< / span >   < span class = "keywordflow" > for< / span > (BooleanVariable < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > (0); < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > < var_polarity_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > (); ++< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00267" > < / a > < span class = "lineno" > 267< / span >   < span class = "comment" > // TODO(user): we currently assume that if the tie_breaker is zero then< / span > < / div >
< div class = "line" > < a name = "l00268" > < / a > < span class = "lineno" > 268< / span >   < span class = "comment" > // no preference was set (which is not 100% correct). Fix that.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00269" > < / a > < span class = "lineno" > 269< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > double< / span > < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > = var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a5687a1c992a159e714037bf6ccfa7f4a" > GetElement< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > .value()).tie_breaker;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00270" > < / a > < span class = "lineno" > 270< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > > 0.0) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00271" > < / a > < span class = "lineno" > 271< / span >   prefs.push_back(std::make_pair(< a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > , var_polarity_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]), < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ));< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00272" > < / a > < span class = "lineno" > 272< / span >   }< / div >
< div class = "line" > < a name = "l00273" > < / a > < span class = "lineno" > 273< / span >   }< / div >
< div class = "line" > < a name = "l00274" > < / a > < span class = "lineno" > 274< / span >   < span class = "keywordflow" > return< / span > prefs;< / div >
< div class = "line" > < a name = "l00275" > < / a > < span class = "lineno" > 275< / span >   }< / div >
< div class = "line" > < a name = "l00276" > < / a > < span class = "lineno" > 276< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00277" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#acf5ac4ce7b95b26c0eadcd6b8cbffe74" > 277< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#acf5ac4ce7b95b26c0eadcd6b8cbffe74" > SatDecisionPolicy::UpdateWeightedSign< / a > (< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00278" > < / a > < span class = "lineno" > 278< / span >   < span class = "keyword" > const< / span > std::vector< LiteralWithCoeff> & terms, Coefficient rhs) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00279" > < / a > < span class = "lineno" > 279< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "structoperations__research_1_1sat_1_1_literal_with_coeff.html" > LiteralWithCoeff< / a > & term : terms) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00280" > < / a > < span class = "lineno" > 280< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > double< / span > < a class = "code" href = "pack_8cc.html#ae42ca38a167164c07831993889216903" > weight< / a > = < span class = "keyword" > static_cast< < / span > < span class = "keywordtype" > double< / span > < span class = "keyword" > > < / span > (term.coefficient.value()) /< / div >
< div class = "line" > < a name = "l00281" > < / a > < span class = "lineno" > 281< / span >   < span class = "keyword" > static_cast< < / span > < span class = "keywordtype" > double< / span > < span class = "keyword" > > < / span > (rhs.value());< / div >
< div class = "line" > < a name = "l00282" > < / a > < span class = "lineno" > 282< / span >   weighted_sign_[term.literal.Variable()] +=< / div >
< div class = "line" > < a name = "l00283" > < / a > < span class = "lineno" > 283< / span >   term.literal.IsPositive() ? -< a class = "code" href = "pack_8cc.html#ae42ca38a167164c07831993889216903" > weight< / a > : < a class = "code" href = "pack_8cc.html#ae42ca38a167164c07831993889216903" > weight< / a > ;< / div >
< div class = "line" > < a name = "l00284" > < / a > < span class = "lineno" > 284< / span >   }< / div >
< div class = "line" > < a name = "l00285" > < / a > < span class = "lineno" > 285< / span >   }< / div >
< div class = "line" > < a name = "l00286" > < / a > < span class = "lineno" > 286< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00287" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#aab615de1a3b2016b0a8b8cdf05e9cf0b" > 287< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#aab615de1a3b2016b0a8b8cdf05e9cf0b" > SatDecisionPolicy::BumpVariableActivities< / a > (< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00288" > < / a > < span class = "lineno" > 288< / span >   < span class = "keyword" > const< / span > std::vector< Literal> & literals) {< / div >
< div class = "line" > < a name = "l00289" > < / a > < span class = "lineno" > 289< / span >   < span class = "keywordflow" > if< / span > (parameters_.use_erwa_heuristic()) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00290" > < / a > < span class = "lineno" > 290< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > < a class = "code" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > : literals) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00291" > < / a > < span class = "lineno" > 291< / span >   < span class = "comment" > // Note that we don' t really need to bump level 0 variables since they< / span > < / div >
< div class = "line" > < a name = "l00292" > < / a > < span class = "lineno" > 292< / span >   < span class = "comment" > // will never be backtracked over. However it is faster to simply bump< / span > < / div >
< div class = "line" > < a name = "l00293" > < / a > < span class = "lineno" > 293< / span >   < span class = "comment" > // them.< / span > < / div >
< div class = "line" > < a name = "l00294" > < / a > < span class = "lineno" > 294< / span >   ++num_bumps_[< a class = "code" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > .Variable()];< / div >
< div class = "line" > < a name = "l00295" > < / a > < span class = "lineno" > 295< / span >   }< / div >
< div class = "line" > < a name = "l00296" > < / a > < span class = "lineno" > 296< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00297" > < / a > < span class = "lineno" > 297< / span >   }< / div >
< div class = "line" > < a name = "l00298" > < / a > < span class = "lineno" > 298< / span >   < / div >
< div class = "line" > < a name = "l00299" > < / a > < span class = "lineno" > 299< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > double< / span > max_activity_value = parameters_.max_variable_activity_value();< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00300" > < / a > < span class = "lineno" > 300< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > < a class = "code" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > : literals) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00301" > < / a > < span class = "lineno" > 301< / span >   < span class = "keyword" > const< / span > BooleanVariable < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > = < a class = "code" href = "optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b" > literal< / a > .Variable();< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00302" > < / a > < span class = "lineno" > 302< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > level = trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a29be1a6b9ba823a6fffb927609d18599" > Info< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ).< a class = "code" href = "structoperations__research_1_1sat_1_1_assignment_info.html#afefd28242df91e46e762af1f7eaf623f" > level< / a > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00303" > < / a > < span class = "lineno" > 303< / span >   < span class = "keywordflow" > if< / span > (level == 0) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00304" > < / a > < span class = "lineno" > 304< / span >   activities_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ] += variable_activity_increment_;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00305" > < / a > < span class = "lineno" > 305< / span >   pq_need_update_for_var_at_trail_index_.< a class = "code" href = "classoperations__research_1_1_bit_queue64.html#a74d1ef67d47fb7f8418e53ec28a14fb3" > Set< / a > (trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a29be1a6b9ba823a6fffb927609d18599" > Info< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ).< a class = "code" href = "structoperations__research_1_1sat_1_1_assignment_info.html#a8843d978bef78a2392a908bd07fffb8e" > trail_index< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00306" > < / a > < span class = "lineno" > 306< / span >   < span class = "keywordflow" > if< / span > (activities_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ] > max_activity_value) {< / div >
< div class = "line" > < a name = "l00307" > < / a > < span class = "lineno" > 307< / span >   RescaleVariableActivities(1.0 / max_activity_value);< / div >
< div class = "line" > < a name = "l00308" > < / a > < span class = "lineno" > 308< / span >   }< / div >
< div class = "line" > < a name = "l00309" > < / a > < span class = "lineno" > 309< / span >   }< / div >
< div class = "line" > < a name = "l00310" > < / a > < span class = "lineno" > 310< / span >   }< / div >
< div class = "line" > < a name = "l00311" > < / a > < span class = "lineno" > 311< / span >   < / div >
< div class = "line" > < a name = "l00312" > < / a > < span class = "lineno" > 312< / span >   < span class = "keywordtype" > void< / span > SatDecisionPolicy::RescaleVariableActivities(< span class = "keywordtype" > double< / span > scaling_factor) {< / div >
< div class = "line" > < a name = "l00313" > < / a > < span class = "lineno" > 313< / span >   variable_activity_increment_ *= scaling_factor;< / div >
2020-12-07 17:47:46 +01:00
< div class = "line" > < a name = "l00314" > < / a > < span class = "lineno" > 314< / span >   < span class = "keywordflow" > for< / span > (BooleanVariable < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > (0); < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > < activities_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > (); ++< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00315" > < / a > < span class = "lineno" > 315< / span >   activities_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ] *= scaling_factor;< / div >
< div class = "line" > < a name = "l00316" > < / a > < span class = "lineno" > 316< / span >   }< / div >
< div class = "line" > < a name = "l00317" > < / a > < span class = "lineno" > 317< / span >   < / div >
< div class = "line" > < a name = "l00318" > < / a > < span class = "lineno" > 318< / span >   < span class = "comment" > // When rescaling the activities of all the variables, the order of the< / span > < / div >
< div class = "line" > < a name = "l00319" > < / a > < span class = "lineno" > 319< / span >   < span class = "comment" > // active variables in the heap will not change, but we still need to update< / span > < / div >
< div class = "line" > < a name = "l00320" > < / a > < span class = "lineno" > 320< / span >   < span class = "comment" > // their weights so that newly inserted elements will compare correctly with< / span > < / div >
< div class = "line" > < a name = "l00321" > < / a > < span class = "lineno" > 321< / span >   < span class = "comment" > // already inserted ones.< / span > < / div >
< div class = "line" > < a name = "l00322" > < / a > < span class = "lineno" > 322< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00323" > < / a > < span class = "lineno" > 323< / span >   < span class = "comment" > // IMPORTANT: we need to reset the full heap from scratch because just< / span > < / div >
< div class = "line" > < a name = "l00324" > < / a > < span class = "lineno" > 324< / span >   < span class = "comment" > // multiplying the current weight by scaling_factor is not guaranteed to< / span > < / div >
< div class = "line" > < a name = "l00325" > < / a > < span class = "lineno" > 325< / span >   < span class = "comment" > // preserve the order. This is because the activity of two entries may go to< / span > < / div >
< div class = "line" > < a name = "l00326" > < / a > < span class = "lineno" > 326< / span >   < span class = "comment" > // zero and the tie-breaking ordering may change their relative order.< / span > < / div >
< div class = "line" > < a name = "l00327" > < / a > < span class = "lineno" > 327< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00328" > < / a > < span class = "lineno" > 328< / span >   < span class = "comment" > // InitializeVariableOrdering() will be called lazily only if needed.< / span > < / div >
< div class = "line" > < a name = "l00329" > < / a > < span class = "lineno" > 329< / span >   var_ordering_is_initialized_ = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00330" > < / a > < span class = "lineno" > 330< / span >   }< / div >
< div class = "line" > < a name = "l00331" > < / a > < span class = "lineno" > 331< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00332" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#a8bc0829ef9f6099106cab480e71ab847" > 332< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#a8bc0829ef9f6099106cab480e71ab847" > SatDecisionPolicy::UpdateVariableActivityIncrement< / a > () {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00333" > < / a > < span class = "lineno" > 333< / span >   variable_activity_increment_ *= 1.0 / parameters_.variable_activity_decay();< / div >
< div class = "line" > < a name = "l00334" > < / a > < span class = "lineno" > 334< / span >   }< / div >
< div class = "line" > < a name = "l00335" > < / a > < span class = "lineno" > 335< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00336" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#acf014a334d9412c245c083ce69aa8716" > 336< / a > < / span >   < a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > < a class = "code" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#acf014a334d9412c245c083ce69aa8716" > SatDecisionPolicy::NextBranch< / a > () {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00337" > < / a > < span class = "lineno" > 337< / span >   < span class = "comment" > // Lazily initialize var_ordering_ if needed.< / span > < / div >
< div class = "line" > < a name = "l00338" > < / a > < span class = "lineno" > 338< / span >   < span class = "keywordflow" > if< / span > (!var_ordering_is_initialized_) {< / div >
< div class = "line" > < a name = "l00339" > < / a > < span class = "lineno" > 339< / span >   InitializeVariableOrdering();< / div >
< div class = "line" > < a name = "l00340" > < / a > < span class = "lineno" > 340< / span >   }< / div >
< div class = "line" > < a name = "l00341" > < / a > < span class = "lineno" > 341< / span >   < / div >
< div class = "line" > < a name = "l00342" > < / a > < span class = "lineno" > 342< / span >   < span class = "comment" > // Choose the variable.< / span > < / div >
< div class = "line" > < a name = "l00343" > < / a > < span class = "lineno" > 343< / span >   BooleanVariable < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ;< / div >
< div class = "line" > < a name = "l00344" > < / a > < span class = "lineno" > 344< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > double< / span > < a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > = parameters_.random_branches_ratio();< / div >
< div class = "line" > < a name = "l00345" > < / a > < span class = "lineno" > 345< / span >   < span class = "keyword" > auto< / span > zero_to_one = [< span class = "keyword" > this< / span > ]() {< / div >
< div class = "line" > < a name = "l00346" > < / a > < span class = "lineno" > 346< / span >   < span class = "keywordflow" > return< / span > std::uniform_real_distribution< double> ()(*random_);< / div >
< div class = "line" > < a name = "l00347" > < / a > < span class = "lineno" > 347< / span >   };< / div >
< div class = "line" > < a name = "l00348" > < / a > < span class = "lineno" > 348< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > != 0.0 & & zero_to_one() < < a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > ) {< / div >
< div class = "line" > < a name = "l00349" > < / a > < span class = "lineno" > 349< / span >   < span class = "keywordflow" > while< / span > (< span class = "keyword" > true< / span > ) {< / div >
< div class = "line" > < a name = "l00350" > < / a > < span class = "lineno" > 350< / span >   < span class = "comment" > // TODO(user): This may not be super efficient if almost all the< / span > < / div >
< div class = "line" > < a name = "l00351" > < / a > < span class = "lineno" > 351< / span >   < span class = "comment" > // variables are assigned.< / span > < / div >
< div class = "line" > < a name = "l00352" > < / a > < span class = "lineno" > 352< / span >   std::uniform_int_distribution< int> index_dist(0,< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00353" > < / a > < span class = "lineno" > 353< / span >   var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a24926108b770033792d015cb86aeffb3" > Size< / a > () - 1);< / div >
< div class = "line" > < a name = "l00354" > < / a > < span class = "lineno" > 354< / span >   < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > = var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a0881dd4925133cfdf55468935ba384a4" > QueueElement< / a > (index_dist(*random_)).var;< / div >
< div class = "line" > < a name = "l00355" > < / a > < span class = "lineno" > 355< / span >   < span class = "keywordflow" > if< / span > (!trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a9789bf03dba611e9be5679d6e902d0c8" > Assignment< / a > ().< a class = "code" href = "classoperations__research_1_1sat_1_1_variables_assignment.html#a49e751eb6f0e9babd957889bb8e7472d" > VariableIsAssigned< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > )) < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00356" > < / a > < span class = "lineno" > 356< / span >   pq_need_update_for_var_at_trail_index_.< a class = "code" href = "classoperations__research_1_1_bit_queue64.html#a74d1ef67d47fb7f8418e53ec28a14fb3" > Set< / a > (trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a29be1a6b9ba823a6fffb927609d18599" > Info< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ).< a class = "code" href = "structoperations__research_1_1sat_1_1_assignment_info.html#a8843d978bef78a2392a908bd07fffb8e" > trail_index< / a > );< / div >
< div class = "line" > < a name = "l00357" > < / a > < span class = "lineno" > 357< / span >   var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a50af808bf213e4cb397f5f458af96cb5" > Remove< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > .value());< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00358" > < / a > < span class = "lineno" > 358< / span >   }< / div >
< div class = "line" > < a name = "l00359" > < / a > < span class = "lineno" > 359< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00360" > < / a > < span class = "lineno" > 360< / span >   < span class = "comment" > // The loop is done this way in order to leave the final choice in the heap.< / span > < / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l00361" > < / a > < span class = "lineno" > 361< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (!var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ());< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00362" > < / a > < span class = "lineno" > 362< / span >   < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > = var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a8f1cb7a5e2de2945a3dcecd15a09a0a4" > Top< / a > ().var;< / div >
< div class = "line" > < a name = "l00363" > < / a > < span class = "lineno" > 363< / span >   < span class = "keywordflow" > while< / span > (trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a9789bf03dba611e9be5679d6e902d0c8" > Assignment< / a > ().< a class = "code" href = "classoperations__research_1_1sat_1_1_variables_assignment.html#a49e751eb6f0e9babd957889bb8e7472d" > VariableIsAssigned< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > )) {< / div >
< div class = "line" > < a name = "l00364" > < / a > < span class = "lineno" > 364< / span >   var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a701a584ce72cccbcce9cb0656b6c898b" > Pop< / a > ();< / div >
< div class = "line" > < a name = "l00365" > < / a > < span class = "lineno" > 365< / span >   pq_need_update_for_var_at_trail_index_.< a class = "code" href = "classoperations__research_1_1_bit_queue64.html#a74d1ef67d47fb7f8418e53ec28a14fb3" > Set< / a > (trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a29be1a6b9ba823a6fffb927609d18599" > Info< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ).< a class = "code" href = "structoperations__research_1_1sat_1_1_assignment_info.html#a8843d978bef78a2392a908bd07fffb8e" > trail_index< / a > );< / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l00366" > < / a > < span class = "lineno" > 366< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (!var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ());< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00367" > < / a > < span class = "lineno" > 367< / span >   < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > = var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a8f1cb7a5e2de2945a3dcecd15a09a0a4" > Top< / a > ().var;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00368" > < / a > < span class = "lineno" > 368< / span >   }< / div >
< div class = "line" > < a name = "l00369" > < / a > < span class = "lineno" > 369< / span >   }< / div >
< div class = "line" > < a name = "l00370" > < / a > < span class = "lineno" > 370< / span >   < / div >
< div class = "line" > < a name = "l00371" > < / a > < span class = "lineno" > 371< / span >   < span class = "comment" > // Choose its polarity (i.e. True of False).< / span > < / div >
< div class = "line" > < a name = "l00372" > < / a > < span class = "lineno" > 372< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > double< / span > random_ratio = parameters_.random_polarity_ratio();< / div >
< div class = "line" > < a name = "l00373" > < / a > < span class = "lineno" > 373< / span >   < span class = "keywordflow" > if< / span > (random_ratio != 0.0 & & zero_to_one() < random_ratio) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00374" > < / a > < span class = "lineno" > 374< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > , std::uniform_int_distribution< int> (0, 1)(*random_));< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00375" > < / a > < span class = "lineno" > 375< / span >   }< / div >
< div class = "line" > < a name = "l00376" > < / a > < span class = "lineno" > 376< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00377" > < / a > < span class = "lineno" > 377< / span >   < span class = "keywordflow" > if< / span > (has_forced_polarity_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]) < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > , forced_polarity_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00378" > < / a > < span class = "lineno" > 378< / span >   < span class = "keywordflow" > if< / span > (in_stable_phase_ & & has_target_polarity_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00379" > < / a > < span class = "lineno" > 379< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > , target_polarity_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00380" > < / a > < span class = "lineno" > 380< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00381" > < / a > < span class = "lineno" > 381< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > , var_polarity_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00382" > < / a > < span class = "lineno" > 382< / span >   }< / div >
< div class = "line" > < a name = "l00383" > < / a > < span class = "lineno" > 383< / span >   < / div >
< div class = "line" > < a name = "l00384" > < / a > < span class = "lineno" > 384< / span >   < span class = "keywordtype" > void< / span > SatDecisionPolicy::PqInsertOrUpdate(BooleanVariable < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ) {< / div >
< div class = "line" > < a name = "l00385" > < / a > < span class = "lineno" > 385< / span >   < span class = "keyword" > const< / span > WeightedVarQueueElement element{< / div >
< div class = "line" > < a name = "l00386" > < / a > < span class = "lineno" > 386< / span >   < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > , < span class = "keyword" > static_cast< < / span > < span class = "keywordtype" > float< / span > < span class = "keyword" > > < / span > (tie_breakers_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]), activities_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ]};< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00387" > < / a > < span class = "lineno" > 387< / span >   < span class = "keywordflow" > if< / span > (var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a06fe50b32a75c0a071b68ebbacb8f681" > Contains< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > .value())) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00388" > < / a > < span class = "lineno" > 388< / span >   < span class = "comment" > // Note that the new weight should always be higher than the old one.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00389" > < / a > < span class = "lineno" > 389< / span >   var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a476176e5749d53acadc6d3ef6a3b5e61" > IncreasePriority< / a > (element);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00390" > < / a > < span class = "lineno" > 390< / span >   } < span class = "keywordflow" > else< / span > {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00391" > < / a > < span class = "lineno" > 391< / span >   var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a260b134ff6e3aa564e8ba1f879aea3d9" > Add< / a > (element);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00392" > < / a > < span class = "lineno" > 392< / span >   }< / div >
< div class = "line" > < a name = "l00393" > < / a > < span class = "lineno" > 393< / span >   }< / div >
< div class = "line" > < a name = "l00394" > < / a > < span class = "lineno" > 394< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00395" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#aa62b9215667a0b7dc6af8251dbaba486" > 395< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#aa62b9215667a0b7dc6af8251dbaba486" > SatDecisionPolicy::Untrail< / a > (< span class = "keywordtype" > int< / span > target_trail_index) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00396" > < / a > < span class = "lineno" > 396< / span >   < span class = "comment" > // TODO(user): avoid looping twice over the trail?< / span > < / div >
< div class = "line" > < a name = "l00397" > < / a > < span class = "lineno" > 397< / span >   < span class = "keywordflow" > if< / span > (maybe_enable_phase_saving_ & & parameters_.use_phase_saving()) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00398" > < / a > < span class = "lineno" > 398< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = target_trail_index; i < trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a8ef12397d1682615bc3108c397734179" > Index< / a > (); ++i) {< / div >
< div class = "line" > < a name = "l00399" > < / a > < span class = "lineno" > 399< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html" > Literal< / a > l = trail_[i];< / div >
< div class = "line" > < a name = "l00400" > < / a > < span class = "lineno" > 400< / span >   var_polarity_[l.< a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html#a6a5dcff82096cd7a7147bf996dbaa5a8" > Variable< / a > ()] = l.< a class = "code" href = "classoperations__research_1_1sat_1_1_literal.html#ab76ca9049d6f3f1948d7120a98765107" > IsPositive< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00401" > < / a > < span class = "lineno" > 401< / span >   }< / div >
< div class = "line" > < a name = "l00402" > < / a > < span class = "lineno" > 402< / span >   }< / div >
< div class = "line" > < a name = "l00403" > < / a > < span class = "lineno" > 403< / span >   < / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l00404" > < / a > < span class = "lineno" > 404< / span >   < a class = "code" href = "base_2logging_8h.html#ab62f5ed8f2d48e29802be0cbbcd1359a" > DCHECK_LT< / a > (target_trail_index, trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a8ef12397d1682615bc3108c397734179" > Index< / a > ());< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00405" > < / a > < span class = "lineno" > 405< / span >   < span class = "keywordflow" > if< / span > (parameters_.use_erwa_heuristic()) {< / div >
< div class = "line" > < a name = "l00406" > < / a > < span class = "lineno" > 406< / span >   < span class = "comment" > // The ERWA parameter between the new estimation of the learning rate and< / span > < / div >
< div class = "line" > < a name = "l00407" > < / a > < span class = "lineno" > 407< / span >   < span class = "comment" > // the old one. TODO(user): Expose parameters for these values.< / span > < / div >
< div class = "line" > < a name = "l00408" > < / a > < span class = "lineno" > 408< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > double< / span > alpha = < a class = "code" href = "alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a" > std::max< / a > (0.06, 0.4 - 1e-6 * num_conflicts_);< / div >
< div class = "line" > < a name = "l00409" > < / a > < span class = "lineno" > 409< / span >   < / div >
< div class = "line" > < a name = "l00410" > < / a > < span class = "lineno" > 410< / span >   < span class = "comment" > // This counts the number of conflicts since the assignment of the variable< / span > < / div >
< div class = "line" > < a name = "l00411" > < / a > < span class = "lineno" > 411< / span >   < span class = "comment" > // at the current trail_index that we are about to untrail.< / span > < / div >
< div class = "line" > < a name = "l00412" > < / a > < span class = "lineno" > 412< / span >   < span class = "keywordtype" > int< / span > num_conflicts = 0;< / div >
< div class = "line" > < a name = "l00413" > < / a > < span class = "lineno" > 413< / span >   < span class = "keywordtype" > int< / span > next_num_conflicts_update =< / div >
< div class = "line" > < a name = "l00414" > < / a > < span class = "lineno" > 414< / span >   num_conflicts_stack_.empty() ? -1< / div >
< div class = "line" > < a name = "l00415" > < / a > < span class = "lineno" > 415< / span >   : num_conflicts_stack_.back().trail_index;< / div >
< div class = "line" > < a name = "l00416" > < / a > < span class = "lineno" > 416< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00417" > < / a > < span class = "lineno" > 417< / span >   < span class = "keywordtype" > int< / span > trail_index = trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a8ef12397d1682615bc3108c397734179" > Index< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00418" > < / a > < span class = "lineno" > 418< / span >   < span class = "keywordflow" > while< / span > (trail_index > target_trail_index) {< / div >
< div class = "line" > < a name = "l00419" > < / a > < span class = "lineno" > 419< / span >   < span class = "keywordflow" > if< / span > (next_num_conflicts_update == trail_index) {< / div >
< div class = "line" > < a name = "l00420" > < / a > < span class = "lineno" > 420< / span >   num_conflicts += num_conflicts_stack_.back().count;< / div >
< div class = "line" > < a name = "l00421" > < / a > < span class = "lineno" > 421< / span >   num_conflicts_stack_.pop_back();< / div >
< div class = "line" > < a name = "l00422" > < / a > < span class = "lineno" > 422< / span >   next_num_conflicts_update =< / div >
< div class = "line" > < a name = "l00423" > < / a > < span class = "lineno" > 423< / span >   num_conflicts_stack_.empty()< / div >
< div class = "line" > < a name = "l00424" > < / a > < span class = "lineno" > 424< / span >   ? -1< / div >
< div class = "line" > < a name = "l00425" > < / a > < span class = "lineno" > 425< / span >   : num_conflicts_stack_.back().trail_index;< / div >
< div class = "line" > < a name = "l00426" > < / a > < span class = "lineno" > 426< / span >   }< / div >
< div class = "line" > < a name = "l00427" > < / a > < span class = "lineno" > 427< / span >   < span class = "keyword" > const< / span > BooleanVariable < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > = trail_[--trail_index].Variable();< / div >
< div class = "line" > < a name = "l00428" > < / a > < span class = "lineno" > 428< / span >   < / div >
< div class = "line" > < a name = "l00429" > < / a > < span class = "lineno" > 429< / span >   < span class = "comment" > // TODO(user): This heuristic can make this code quite slow because< / span > < / div >
< div class = "line" > < a name = "l00430" > < / a > < span class = "lineno" > 430< / span >   < span class = "comment" > // all the untrailed variable will cause a priority queue update.< / span > < / div >
< div class = "line" > < a name = "l00431" > < / a > < span class = "lineno" > 431< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a" > int64< / a > num_bumps = num_bumps_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ];< / div >
< div class = "line" > < a name = "l00432" > < / a > < span class = "lineno" > 432< / span >   < span class = "keywordtype" > double< / span > new_rate = 0.0;< / div >
< div class = "line" > < a name = "l00433" > < / a > < span class = "lineno" > 433< / span >   < span class = "keywordflow" > if< / span > (num_bumps > 0) {< / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l00434" > < / a > < span class = "lineno" > 434< / span >   < a class = "code" href = "base_2logging_8h.html#ab4f56aa24c4c9cddc47a6abd2d747f9a" > DCHECK_GT< / a > (num_conflicts, 0);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00435" > < / a > < span class = "lineno" > 435< / span >   num_bumps_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ] = 0;< / div >
< div class = "line" > < a name = "l00436" > < / a > < span class = "lineno" > 436< / span >   new_rate = < span class = "keyword" > static_cast< < / span > < span class = "keywordtype" > double< / span > < span class = "keyword" > > < / span > (num_bumps) / num_conflicts;< / div >
< div class = "line" > < a name = "l00437" > < / a > < span class = "lineno" > 437< / span >   }< / div >
< div class = "line" > < a name = "l00438" > < / a > < span class = "lineno" > 438< / span >   activities_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ] = alpha * new_rate + (1 - alpha) * activities_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ];< / div >
< div class = "line" > < a name = "l00439" > < / a > < span class = "lineno" > 439< / span >   < span class = "keywordflow" > if< / span > (var_ordering_is_initialized_) PqInsertOrUpdate(< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > );< / div >
< div class = "line" > < a name = "l00440" > < / a > < span class = "lineno" > 440< / span >   }< / div >
< div class = "line" > < a name = "l00441" > < / a > < span class = "lineno" > 441< / span >   < span class = "keywordflow" > if< / span > (num_conflicts > 0) {< / div >
< div class = "line" > < a name = "l00442" > < / a > < span class = "lineno" > 442< / span >   < span class = "keywordflow" > if< / span > (!num_conflicts_stack_.empty() & & < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00443" > < / a > < span class = "lineno" > 443< / span >   num_conflicts_stack_.back().trail_index == trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a8ef12397d1682615bc3108c397734179" > Index< / a > ()) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00444" > < / a > < span class = "lineno" > 444< / span >   num_conflicts_stack_.back().count += num_conflicts;< / div >
< div class = "line" > < a name = "l00445" > < / a > < span class = "lineno" > 445< / span >   } < span class = "keywordflow" > else< / span > {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00446" > < / a > < span class = "lineno" > 446< / span >   num_conflicts_stack_.push_back({trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a8ef12397d1682615bc3108c397734179" > Index< / a > (), num_conflicts});< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00447" > < / a > < span class = "lineno" > 447< / span >   }< / div >
< div class = "line" > < a name = "l00448" > < / a > < span class = "lineno" > 448< / span >   }< / div >
< div class = "line" > < a name = "l00449" > < / a > < span class = "lineno" > 449< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00450" > < / a > < span class = "lineno" > 450< / span >   < span class = "keywordflow" > if< / span > (!var_ordering_is_initialized_) < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00451" > < / a > < span class = "lineno" > 451< / span >   < / div >
< div class = "line" > < a name = "l00452" > < / a > < span class = "lineno" > 452< / span >   < span class = "comment" > // Trail index of the next variable that will need a priority queue update.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00453" > < / a > < span class = "lineno" > 453< / span >   < span class = "keywordtype" > int< / span > to_update = pq_need_update_for_var_at_trail_index_.< a class = "code" href = "classoperations__research_1_1_bit_queue64.html#a2edc7a62aaf90213f6c5f765242d6488" > Top< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00454" > < / a > < span class = "lineno" > 454< / span >   < span class = "keywordflow" > while< / span > (to_update > = target_trail_index) {< / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l00455" > < / a > < span class = "lineno" > 455< / span >   < a class = "code" href = "base_2logging_8h.html#ab62f5ed8f2d48e29802be0cbbcd1359a" > DCHECK_LT< / a > (to_update, trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a8ef12397d1682615bc3108c397734179" > Index< / a > ());< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00456" > < / a > < span class = "lineno" > 456< / span >   PqInsertOrUpdate(trail_[to_update].Variable());< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00457" > < / a > < span class = "lineno" > 457< / span >   pq_need_update_for_var_at_trail_index_.< a class = "code" href = "classoperations__research_1_1_bit_queue64.html#a704ec3ccc1510e90b041a92a0e04b71c" > ClearTop< / a > ();< / div >
< div class = "line" > < a name = "l00458" > < / a > < span class = "lineno" > 458< / span >   to_update = pq_need_update_for_var_at_trail_index_.< a class = "code" href = "classoperations__research_1_1_bit_queue64.html#a2edc7a62aaf90213f6c5f765242d6488" > Top< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00459" > < / a > < span class = "lineno" > 459< / span >   }< / div >
< div class = "line" > < a name = "l00460" > < / a > < span class = "lineno" > 460< / span >   }< / div >
< div class = "line" > < a name = "l00461" > < / a > < span class = "lineno" > 461< / span >   < / div >
< div class = "line" > < a name = "l00462" > < / a > < span class = "lineno" > 462< / span >   < span class = "comment" > // Invariant.< / span > < / div >
< div class = "line" > < a name = "l00463" > < / a > < span class = "lineno" > 463< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "macros_8h.html#a7f536a3b33f9bed8f75734e035d30725" > DEBUG_MODE< / a > & & var_ordering_is_initialized_) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00464" > < / a > < span class = "lineno" > 464< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > trail_index = trail_.< a class = "code" href = "classoperations__research_1_1sat_1_1_trail.html#a8ef12397d1682615bc3108c397734179" > Index< / a > () - 1; trail_index > target_trail_index;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00465" > < / a > < span class = "lineno" > 465< / span >   --trail_index) {< / div >
< div class = "line" > < a name = "l00466" > < / a > < span class = "lineno" > 466< / span >   < span class = "keyword" > const< / span > BooleanVariable < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > = trail_[trail_index].Variable();< / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l00467" > < / a > < span class = "lineno" > 467< / span >   < a class = "code" href = "base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274" > CHECK< / a > (var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a06fe50b32a75c0a071b68ebbacb8f681" > Contains< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > .value()));< / div >
< div class = "line" > < a name = "l00468" > < / a > < span class = "lineno" > 468< / span >   < a class = "code" href = "base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b" > CHECK_EQ< / a > (activities_[< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ], var_ordering_.< a class = "code" href = "classoperations__research_1_1_integer_priority_queue.html#a5687a1c992a159e714037bf6ccfa7f4a" > GetElement< / a > (< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > .value()).weight);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00469" > < / a > < span class = "lineno" > 469< / span >   }< / div >
< div class = "line" > < a name = "l00470" > < / a > < span class = "lineno" > 470< / span >   }< / div >
< div class = "line" > < a name = "l00471" > < / a > < span class = "lineno" > 471< / span >   }< / div >
< div class = "line" > < a name = "l00472" > < / a > < span class = "lineno" > 472< / span >   < / div >
< div class = "line" > < a name = "l00473" > < / a > < span class = "lineno" > 473< / span >   } < span class = "comment" > // namespace sat< / span > < / div >
< div class = "line" > < a name = "l00474" > < / a > < span class = "lineno" > 474< / span >   } < span class = "comment" > // namespace operations_research< / span > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aalldiff__cst_8cc_html_a9d0c202d5fdd62f4fa2c613339ff168a" > < div class = "ttname" > < a href = "alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a" > max< / a > < / div > < div class = "ttdeci" > int64 max< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "alldiff__cst_8cc_source.html#l00139" > alldiff_cst.cc:139< / a > < / div > < / div >
< 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 >
< div class = "ttc" id = "abase_2logging_8h_html_a4395e95bab44e222cb2e77251017a0e2" > < div class = "ttname" > < a href = "base_2logging_8h.html#a4395e95bab44e222cb2e77251017a0e2" > DCHECK_LE< / a > < / div > < div class = "ttdeci" > #define DCHECK_LE(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00887" > base/logging.h:887< / 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#l00697" > base/logging.h:697< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_aae2dc65d9ea248d54bf39daa986dd295" > < div class = "ttname" > < a href = "base_2logging_8h.html#aae2dc65d9ea248d54bf39daa986dd295" > DCHECK_GE< / a > < / div > < div class = "ttdeci" > #define DCHECK_GE(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00889" > base/logging.h:889< / 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#l00890" > base/logging.h:890< / a > < / div > < / div >
2020-11-18 14:53:30 +01:00
< div class = "ttc" id = "abase_2logging_8h_html_ab62f5ed8f2d48e29802be0cbbcd1359a" > < div class = "ttname" > < a href = "base_2logging_8h.html#ab62f5ed8f2d48e29802be0cbbcd1359a" > DCHECK_LT< / a > < / div > < div class = "ttdeci" > #define DCHECK_LT(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00888" > base/logging.h:888< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "abase_2logging_8h_html_ae17f8119c108cf3070bad3449c7e0006" > < div class = "ttname" > < a href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > < / div > < div class = "ttdeci" > #define DCHECK(condition)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00884" > base/logging.h:884< / a > < / div > < / div >
2020-11-18 14:53:30 +01:00
< div class = "ttc" id = "abase_2logging_8h_html_afcaa7cadd41741bb855c2ada1d2ef927" > < div class = "ttname" > < a href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > < / div > < div class = "ttdeci" > #define VLOG(verboselevel)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00978" > base/logging.h:978< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassabsl_1_1_strong_vector_html_a184fe69018ae421dcf31c964bfe40576" > < div class = "ttname" > < a href = "classabsl_1_1_strong_vector.html#a184fe69018ae421dcf31c964bfe40576" > absl::StrongVector::assign< / a > < / div > < div class = "ttdeci" > void assign(size_type n, const value_type & val)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "strong__vector_8h_source.html#l00131" > strong_vector.h:131< / 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 >
2020-12-07 17:47:46 +01:00
< 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 >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassabsl_1_1_strong_vector_html_ac8bb3912a3ce86b15842e79d0b421204" > < div class = "ttname" > < a href = "classabsl_1_1_strong_vector.html#ac8bb3912a3ce86b15842e79d0b421204" > absl::StrongVector::clear< / a > < / div > < div class = "ttdeci" > void clear()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "strong__vector_8h_source.html#l00170" > strong_vector.h:170< / a > < / div > < / div >
2021-02-16 18:34:57 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1_bit_queue64_html_a2c9e03b5ffa844d119c926de4689ce59" > < div class = "ttname" > < a href = "classoperations__research_1_1_bit_queue64.html#a2c9e03b5ffa844d119c926de4689ce59" > operations_research::BitQueue64::IncreaseSize< / a > < / div > < div class = "ttdeci" > void IncreaseSize(int size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bitset_8h_source.html#l00689" > bitset.h:689< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_bit_queue64_html_a2edc7a62aaf90213f6c5f765242d6488" > < div class = "ttname" > < a href = "classoperations__research_1_1_bit_queue64.html#a2edc7a62aaf90213f6c5f765242d6488" > operations_research::BitQueue64::Top< / a > < / div > < div class = "ttdeci" > int Top() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bitset_8h_source.html#l00721" > bitset.h:721< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_bit_queue64_html_a704ec3ccc1510e90b041a92a0e04b71c" > < div class = "ttname" > < a href = "classoperations__research_1_1_bit_queue64.html#a704ec3ccc1510e90b041a92a0e04b71c" > operations_research::BitQueue64::ClearTop< / a > < / div > < div class = "ttdeci" > void ClearTop()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bitset_8h_source.html#l00724" > bitset.h:724< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_bit_queue64_html_a74d1ef67d47fb7f8418e53ec28a14fb3" > < div class = "ttname" > < a href = "classoperations__research_1_1_bit_queue64.html#a74d1ef67d47fb7f8418e53ec28a14fb3" > operations_research::BitQueue64::Set< / a > < / div > < div class = "ttdeci" > void Set(int i)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bitset_8h_source.html#l00701" > bitset.h:701< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_bit_queue64_html_ab2fc4510692e040b62507dce522e0e31" > < div class = "ttname" > < a href = "classoperations__research_1_1_bit_queue64.html#ab2fc4510692e040b62507dce522e0e31" > operations_research::BitQueue64::ClearAndResize< / a > < / div > < div class = "ttdeci" > void ClearAndResize(int size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bitset_8h_source.html#l00695" > bitset.h:695< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_bit_queue64_html_ad169bc2e89d7b366bfe0ee5d80083c11" > < div class = "ttname" > < a href = "classoperations__research_1_1_bit_queue64.html#ad169bc2e89d7b366bfe0ee5d80083c11" > operations_research::BitQueue64::SetAllBefore< / a > < / div > < div class = "ttdeci" > void SetAllBefore(int i)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bitset_8h_source.html#l00709" > bitset.h:709< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1_integer_priority_queue_html_a06fe50b32a75c0a071b68ebbacb8f681" > < div class = "ttname" > < a href = "classoperations__research_1_1_integer_priority_queue.html#a06fe50b32a75c0a071b68ebbacb8f681" > operations_research::IntegerPriorityQueue::Contains< / a > < / div > < div class = "ttdeci" > bool Contains(int index) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer__pq_8h_source.html#l00067" > integer_pq.h:67< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1_integer_priority_queue_html_a0881dd4925133cfdf55468935ba384a4" > < div class = "ttname" > < a href = "classoperations__research_1_1_integer_priority_queue.html#a0881dd4925133cfdf55468935ba384a4" > operations_research::IntegerPriorityQueue::QueueElement< / a > < / div > < div class = "ttdeci" > Element QueueElement(int i) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer__pq_8h_source.html#l00128" > integer_pq.h:128< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1_integer_priority_queue_html_a21cecbc35e3da9931f94afa3229354dc" > < div class = "ttname" > < a href = "classoperations__research_1_1_integer_priority_queue.html#a21cecbc35e3da9931f94afa3229354dc" > operations_research::IntegerPriorityQueue::Reserve< / a > < / div > < div class = "ttdeci" > void Reserve(int n)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer__pq_8h_source.html#l00048" > integer_pq.h:48< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_integer_priority_queue_html_a24926108b770033792d015cb86aeffb3" > < div class = "ttname" > < a href = "classoperations__research_1_1_integer_priority_queue.html#a24926108b770033792d015cb86aeffb3" > operations_research::IntegerPriorityQueue::Size< / a > < / div > < div class = "ttdeci" > int Size() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer__pq_8h_source.html#l00056" > integer_pq.h:56< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_integer_priority_queue_html_a260b134ff6e3aa564e8ba1f879aea3d9" > < div class = "ttname" > < a href = "classoperations__research_1_1_integer_priority_queue.html#a260b134ff6e3aa564e8ba1f879aea3d9" > operations_research::IntegerPriorityQueue::Add< / a > < / div > < div class = "ttdeci" > void Add(Element element)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer__pq_8h_source.html#l00071" > integer_pq.h:71< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_integer_priority_queue_html_a476176e5749d53acadc6d3ef6a3b5e61" > < div class = "ttname" > < a href = "classoperations__research_1_1_integer_priority_queue.html#a476176e5749d53acadc6d3ef6a3b5e61" > operations_research::IntegerPriorityQueue::IncreasePriority< / a > < / div > < div class = "ttdeci" > void IncreasePriority(Element element)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer__pq_8h_source.html#l00116" > integer_pq.h:116< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1_integer_priority_queue_html_a50af808bf213e4cb397f5f458af96cb5" > < div class = "ttname" > < a href = "classoperations__research_1_1_integer_priority_queue.html#a50af808bf213e4cb397f5f458af96cb5" > operations_research::IntegerPriorityQueue::Remove< / a > < / div > < div class = "ttdeci" > void Remove(int index)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer__pq_8h_source.html#l00088" > integer_pq.h:88< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1_integer_priority_queue_html_a5687a1c992a159e714037bf6ccfa7f4a" > < div class = "ttname" > < a href = "classoperations__research_1_1_integer_priority_queue.html#a5687a1c992a159e714037bf6ccfa7f4a" > operations_research::IntegerPriorityQueue::GetElement< / a > < / div > < div class = "ttdeci" > Element GetElement(int index) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer__pq_8h_source.html#l00124" > integer_pq.h:124< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_integer_priority_queue_html_a701a584ce72cccbcce9cb0656b6c898b" > < div class = "ttname" > < a href = "classoperations__research_1_1_integer_priority_queue.html#a701a584ce72cccbcce9cb0656b6c898b" > operations_research::IntegerPriorityQueue::Pop< / a > < / div > < div class = "ttdeci" > void Pop()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer__pq_8h_source.html#l00079" > integer_pq.h:79< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_integer_priority_queue_html_a8e12342fc420701fbffd97025421575a" > < div class = "ttname" > < a href = "classoperations__research_1_1_integer_priority_queue.html#a8e12342fc420701fbffd97025421575a" > operations_research::IntegerPriorityQueue::IsEmpty< / a > < / div > < div class = "ttdeci" > bool IsEmpty() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer__pq_8h_source.html#l00057" > integer_pq.h:57< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_integer_priority_queue_html_a8f1cb7a5e2de2945a3dcecd15a09a0a4" > < div class = "ttname" > < a href = "classoperations__research_1_1_integer_priority_queue.html#a8f1cb7a5e2de2945a3dcecd15a09a0a4" > operations_research::IntegerPriorityQueue::Top< / a > < / div > < div class = "ttdeci" > Element Top() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer__pq_8h_source.html#l00078" > integer_pq.h:78< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_integer_priority_queue_html_aa71d36872f416feaa853788a7a7a7ef8" > < div class = "ttname" > < a href = "classoperations__research_1_1_integer_priority_queue.html#aa71d36872f416feaa853788a7a7a7ef8" > operations_research::IntegerPriorityQueue::Clear< / a > < / div > < div class = "ttdeci" > void Clear()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integer__pq_8h_source.html#l00061" > integer_pq.h:61< / 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#l00064" > sat_base.h:64< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_literal_html_a6a5dcff82096cd7a7147bf996dbaa5a8" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_literal.html#a6a5dcff82096cd7a7147bf996dbaa5a8" > operations_research::sat::Literal::Variable< / a > < / div > < div class = "ttdeci" > BooleanVariable Variable() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__base_8h_source.html#l00080" > sat_base.h:80< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_literal_html_ab76ca9049d6f3f1948d7120a98765107" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_literal.html#ab76ca9049d6f3f1948d7120a98765107" > operations_research::sat::Literal::IsPositive< / a > < / div > < div class = "ttdeci" > bool IsPositive() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__base_8h_source.html#l00081" > sat_base.h:81< / 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#l00038" > sat/model.h:38< / a > < / div > < / div >
2020-12-29 22:27:47 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_model_random_generator_html" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_model_random_generator.html" > operations_research::sat::ModelRandomGenerator< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat_2util_8h_source.html#l00039" > sat/util.h:39< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_sat_decision_policy_html_a0b5d7f31620ad7b364e7415c47ee5e0d" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#a0b5d7f31620ad7b364e7415c47ee5e0d" > operations_research::sat::SatDecisionPolicy::AllPreferences< / a > < / div > < div class = "ttdeci" > std::vector< std::pair< Literal, double > > AllPreferences() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__decision_8cc_source.html#l00263" > sat_decision.cc:263< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_sat_decision_policy_html_a19614231a107b165113595bf8edf60bf" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#a19614231a107b165113595bf8edf60bf" > operations_research::sat::SatDecisionPolicy::IncreaseNumVariables< / a > < / div > < div class = "ttdeci" > void IncreaseNumVariables(int num_variables)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__decision_8cc_source.html#l00026" > sat_decision.cc:26< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_sat_decision_policy_html_a1dc177ee88f0a7ce2e46a032e5c3cf02" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#a1dc177ee88f0a7ce2e46a032e5c3cf02" > operations_research::sat::SatDecisionPolicy::ResetDecisionHeuristic< / a > < / div > < div class = "ttdeci" > void ResetDecisionHeuristic()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__decision_8cc_source.html#l00126" > sat_decision.cc:126< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_sat_decision_policy_html_a8bc0829ef9f6099106cab480e71ab847" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#a8bc0829ef9f6099106cab480e71ab847" > operations_research::sat::SatDecisionPolicy::UpdateVariableActivityIncrement< / a > < / div > < div class = "ttdeci" > void UpdateVariableActivityIncrement()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__decision_8cc_source.html#l00332" > sat_decision.cc:332< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_sat_decision_policy_html_a955786dcbe82b7c4dc9924a5473ac1e8" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#a955786dcbe82b7c4dc9924a5473ac1e8" > operations_research::sat::SatDecisionPolicy::SetAssignmentPreference< / a > < / div > < div class = "ttdeci" > void SetAssignmentPreference(Literal literal, double weight)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__decision_8cc_source.html#l00248" > sat_decision.cc:248< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_sat_decision_policy_html_aa62b9215667a0b7dc6af8251dbaba486" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#aa62b9215667a0b7dc6af8251dbaba486" > operations_research::sat::SatDecisionPolicy::Untrail< / a > < / div > < div class = "ttdeci" > void Untrail(int target_trail_index)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__decision_8cc_source.html#l00395" > sat_decision.cc:395< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_sat_decision_policy_html_aab615de1a3b2016b0a8b8cdf05e9cf0b" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#aab615de1a3b2016b0a8b8cdf05e9cf0b" > operations_research::sat::SatDecisionPolicy::BumpVariableActivities< / a > < / div > < div class = "ttdeci" > void BumpVariableActivities(const std::vector< Literal > & literals)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__decision_8cc_source.html#l00287" > sat_decision.cc:287< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_sat_decision_policy_html_abe906f3b347e87b5e91e7ab5609b0f36" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#abe906f3b347e87b5e91e7ab5609b0f36" > operations_research::sat::SatDecisionPolicy::BeforeConflict< / a > < / div > < div class = "ttdeci" > void BeforeConflict(int trail_index)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__decision_8cc_source.html#l00055" > sat_decision.cc:55< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_sat_decision_policy_html_acf014a334d9412c245c083ce69aa8716" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#acf014a334d9412c245c083ce69aa8716" > operations_research::sat::SatDecisionPolicy::NextBranch< / a > < / div > < div class = "ttdeci" > Literal NextBranch()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__decision_8cc_source.html#l00336" > sat_decision.cc:336< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_sat_decision_policy_html_acf5ac4ce7b95b26c0eadcd6b8cbffe74" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#acf5ac4ce7b95b26c0eadcd6b8cbffe74" > operations_research::sat::SatDecisionPolicy::UpdateWeightedSign< / a > < / div > < div class = "ttdeci" > void UpdateWeightedSign(const std::vector< LiteralWithCoeff > & terms, Coefficient rhs)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__decision_8cc_source.html#l00277" > sat_decision.cc:277< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_sat_decision_policy_html_af3bcc41cd4c20ff0a694cbfd18cb0e1e" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_sat_decision_policy.html#af3bcc41cd4c20ff0a694cbfd18cb0e1e" > operations_research::sat::SatDecisionPolicy::SatDecisionPolicy< / a > < / div > < div class = "ttdeci" > SatDecisionPolicy(Model *model)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__decision_8cc_source.html#l00021" > sat_decision.cc:21< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_trail_html" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_trail.html" > operations_research::sat::Trail< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__base_8h_source.html#l00233" > sat_base.h:233< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_trail_html_a29be1a6b9ba823a6fffb927609d18599" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_trail.html#a29be1a6b9ba823a6fffb927609d18599" > operations_research::sat::Trail::Info< / a > < / div > < div class = "ttdeci" > const AssignmentInfo & Info(BooleanVariable var) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__base_8h_source.html#l00381" > sat_base.h:381< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_trail_html_a8ef12397d1682615bc3108c397734179" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_trail.html#a8ef12397d1682615bc3108c397734179" > operations_research::sat::Trail::Index< / a > < / div > < div class = "ttdeci" > int Index() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__base_8h_source.html#l00378" > sat_base.h:378< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_trail_html_a9789bf03dba611e9be5679d6e902d0c8" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_trail.html#a9789bf03dba611e9be5679d6e902d0c8" > 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#l00380" > sat_base.h:380< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_variables_assignment_html_a49e751eb6f0e9babd957889bb8e7472d" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_variables_assignment.html#a49e751eb6f0e9babd957889bb8e7472d" > operations_research::sat::VariablesAssignment::VariableIsAssigned< / a > < / div > < div class = "ttdeci" > bool VariableIsAssigned(BooleanVariable var) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__base_8h_source.html#l00158" > sat_base.h:158< / a > < / div > < / div >
< div class = "ttc" id = "ademon__profiler_8cc_html_a21edc7ca4cc5802c8779d68556bc09cf" > < div class = "ttname" > < a href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > < / div > < div class = "ttdeci" > int64 value< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "demon__profiler_8cc_source.html#l00043" > demon_profiler.cc:43< / a > < / div > < / div >
< div class = "ttc" id = "aexpr__array_8cc_html_a472a99923cbe11ae7b5a5d157d9ad465" > < div class = "ttname" > < a href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > < / div > < div class = "ttdeci" > IntVar * var< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "expr__array_8cc_source.html#l01858" > expr_array.cc:1858< / a > < / div > < / div >
< 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#l00272" > gurobi_interface.cc:272< / a > < / div > < / div >
< div class = "ttc" id = "aintegral__types_8h_html_a7cde0074dfd288f2d70c0e035dacb28a" > < div class = "ttname" > < a href = "integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a" > int64< / a > < / div > < div class = "ttdeci" > int64_t int64< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integral__types_8h_source.html#l00034" > integral_types.h:34< / a > < / div > < / div >
< div class = "ttc" id = "amacros_8h_html_a7f536a3b33f9bed8f75734e035d30725" > < div class = "ttname" > < a href = "macros_8h.html#a7f536a3b33f9bed8f75734e035d30725" > DEBUG_MODE< / a > < / div > < div class = "ttdeci" > const bool DEBUG_MODE< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "macros_8h_source.html#l00024" > macros.h:24< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_html" > < div class = "ttname" > < a href = "namespaceoperations__research.html" > operations_research< / a > < / div > < div class = "ttdoc" > The vehicle routing library lets one model and solve generic vehicle routing problems ranging from th...< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dense__doubly__linked__list_8h_source.html#l00021" > dense_doubly_linked_list.h:21< / a > < / div > < / div >
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