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/****************************************************************************** |
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* Top contributors (to current version): |
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* Andrew Reynolds, Mathias Preiner, Gereon Kremer |
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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 Builder class. |
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*/ |
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#include "cvc5_private.h" |
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#ifndef CVC5__THEORY__QUANTIFIERS__MODEL_BUILDER_H |
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#define CVC5__THEORY__QUANTIFIERS__MODEL_BUILDER_H |
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#include "expr/node.h" |
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#include "theory/quantifiers/inst_match.h" |
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#include "theory/theory_model_builder.h" |
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namespace cvc5 { |
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namespace theory { |
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namespace quantifiers { |
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class FirstOrderModel; |
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class QuantifiersState; |
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class QuantifiersRegistry; |
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class QuantifiersInferenceManager; |
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class TermRegistry; |
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class QModelBuilder : public TheoryEngineModelBuilder |
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{ |
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protected: |
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// must call preProcessBuildModelStd |
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bool preProcessBuildModel(TheoryModel* m) override; |
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bool preProcessBuildModelStd(TheoryModel* m); |
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/** number of lemmas generated while building model */ |
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unsigned d_addedLemmas; |
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unsigned d_triedLemmas; |
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public: |
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QModelBuilder(QuantifiersState& qs, |
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QuantifiersInferenceManager& qim, |
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QuantifiersRegistry& qr, |
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TermRegistry& tr); |
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/** finish init, which sets the model object */ |
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virtual void finishInit(); |
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//do exhaustive instantiation |
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// 0 : failed, but resorting to true exhaustive instantiation may work |
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// >0 : success |
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// <0 : failed |
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virtual int doExhaustiveInstantiation( FirstOrderModel * fm, Node f, int effort ) { return false; } |
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//whether to construct model |
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virtual bool optUseModel(); |
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/** exist instantiation ? */ |
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virtual bool existsInstantiation( Node f, InstMatch& m, bool modEq = true, bool modInst = false ) { return false; } |
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//debug model |
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void debugModel(TheoryModel* m) override; |
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//statistics |
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unsigned getNumAddedLemmas() { return d_addedLemmas; } |
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unsigned getNumTriedLemmas() { return d_triedLemmas; } |
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/** get the model we are using */ |
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FirstOrderModel* getModel(); |
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protected: |
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/** The quantifiers state object */ |
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QuantifiersState& d_qstate; |
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/** The quantifiers inference manager */ |
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QuantifiersInferenceManager& d_qim; |
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/** Reference to the quantifiers registry */ |
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QuantifiersRegistry& d_qreg; |
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/** Term registry */ |
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TermRegistry& d_treg; |
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/** Pointer to the model object we are using */ |
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FirstOrderModel* d_model; |
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/** The model object we have allocated */ |
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std::unique_ptr<FirstOrderModel> d_modelAloc; |
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}; |
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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_BUILDER_H */ |