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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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* Model Engine class. |
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*/ |
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#include "cvc5_private.h" |
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#ifndef CVC5__THEORY__QUANTIFIERS__MODEL_ENGINE_H |
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#define CVC5__THEORY__QUANTIFIERS__MODEL_ENGINE_H |
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#include "smt/env_obj.h" |
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#include "theory/quantifiers/fmf/model_builder.h" |
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#include "theory/quantifiers/quant_module.h" |
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#include "theory/theory_model.h" |
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namespace cvc5 { |
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namespace theory { |
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namespace quantifiers { |
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class ModelEngine : public QuantifiersModule |
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{ |
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friend class RepSetIterator; |
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private: |
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//check model |
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int checkModel(); |
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//exhaustively instantiate quantifier (possibly using mbqi) |
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void exhaustiveInstantiate( Node f, int effort = 0 ); |
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private: |
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//temporary statistics |
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//is the exhaustive instantiation incomplete? |
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bool d_incomplete_check; |
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int d_addedLemmas; |
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int d_triedLemmas; |
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int d_totalLemmas; |
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public: |
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ModelEngine(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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QModelBuilder* builder); |
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virtual ~ModelEngine(); |
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public: |
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bool needsCheck(Theory::Effort e) override; |
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QEffort needsModel(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 checkComplete(IncompleteId& incId) override; |
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bool checkCompleteFor(Node q) override; |
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void registerQuantifier(Node f) override; |
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Node explain(TNode n) { return Node::null(); } |
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void debugPrint(const char* c); |
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/** Identify this module */ |
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std::string identify() const override { return "ModelEngine"; } |
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private: |
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/** Should we process quantified formula q? */ |
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bool shouldProcess(Node q); |
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/** Pointer to the model builder of quantifiers engine */ |
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QModelBuilder* d_builder; |
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/** set of quantified formulas for which check was incomplete */ |
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std::unordered_set<Node> d_incompleteQuants; |
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};/* class ModelEngine */ |
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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__MODEL_ENGINE_H */ |