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/****************************************************************************** |
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* Top contributors (to current version): |
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* Andrew Reynolds, Mathias Preiner, Morgan Deters |
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* |
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* This file is part of the cvc5 project. |
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* |
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* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS |
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* in the top-level source directory and their institutional affiliations. |
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* All rights reserved. See the file COPYING in the top-level source |
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* directory for licensing information. |
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* **************************************************************************** |
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* |
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* Instantiation Engine classes. |
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*/ |
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#include "cvc5_private.h" |
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#ifndef CVC5__THEORY__QUANTIFIERS__INSTANTIATION_ENGINE_H |
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#define CVC5__THEORY__QUANTIFIERS__INSTANTIATION_ENGINE_H |
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#include <vector> |
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#include "theory/quantifiers/ematching/inst_strategy.h" |
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#include "theory/quantifiers/ematching/trigger_database.h" |
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#include "theory/quantifiers/quant_module.h" |
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#include "theory/quantifiers/quant_relevance.h" |
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namespace cvc5 { |
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namespace theory { |
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namespace quantifiers { |
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class InstStrategyUserPatterns; |
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class InstStrategyAutoGenTriggers; |
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class InstantiationEngine : public QuantifiersModule { |
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public: |
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InstantiationEngine(Env& env, |
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QuantifiersState& qs, |
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QuantifiersInferenceManager& qim, |
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QuantifiersRegistry& qr, |
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TermRegistry& tr); |
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~InstantiationEngine(); |
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void presolve() override; |
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bool needsCheck(Theory::Effort e) override; |
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void reset_round(Theory::Effort e) override; |
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void check(Theory::Effort e, QEffort quant_e) override; |
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bool checkCompleteFor(Node q) override; |
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void checkOwnership(Node q) override; |
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void registerQuantifier(Node q) override; |
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Node explain(TNode n) { return Node::null(); } |
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/** add user pattern */ |
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void addUserPattern(Node q, Node pat); |
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void addUserNoPattern(Node q, Node pat); |
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/** Identify this module */ |
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std::string identify() const override { return "InstEngine"; } |
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private: |
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/** is the engine incomplete for this quantifier */ |
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bool isIncomplete(Node q); |
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/** do instantiation round */ |
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void doInstantiationRound(Theory::Effort effort); |
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/** Return true if this module should process quantified formula q */ |
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bool shouldProcess(Node q); |
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/** instantiation strategies */ |
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std::vector<InstStrategy*> d_instStrategies; |
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/** user-pattern instantiation strategy */ |
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std::unique_ptr<InstStrategyUserPatterns> d_isup; |
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/** auto gen triggers; only kept for destructor cleanup */ |
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std::unique_ptr<InstStrategyAutoGenTriggers> d_i_ag; |
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/** current processing quantified formulas */ |
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std::vector<Node> d_quants; |
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/** all triggers will be stored in this database */ |
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inst::TriggerDatabase d_trdb; |
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/** for computing relevance of quantifiers */ |
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std::unique_ptr<QuantRelevance> d_quant_rel; |
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}; /* class InstantiationEngine */ |
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} // namespace quantifiers |
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} // namespace theory |
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} // namespace cvc5 |
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#endif /* CVC5__THEORY__QUANTIFIERS__INSTANTIATION_ENGINE_H */ |