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/****************************************************************************** |
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* Top contributors (to current version): |
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* Andrew Reynolds |
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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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* Term registry class. |
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*/ |
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#include "cvc5_private.h" |
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#ifndef CVC5__THEORY__QUANTIFIERS__TERM_REGISTRY_H |
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#define CVC5__THEORY__QUANTIFIERS__TERM_REGISTRY_H |
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#include <map> |
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#include <unordered_set> |
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#include "context/cdhashset.h" |
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#include "theory/quantifiers/sygus/term_database_sygus.h" |
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#include "theory/quantifiers/term_database.h" |
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#include "theory/quantifiers/term_enumeration.h" |
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#include "theory/quantifiers/term_pools.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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/** |
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* Term Registry, which manages notifying modules within quantifiers about |
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* (ground) terms that exist in the current context. |
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*/ |
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class TermRegistry |
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{ |
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using NodeSet = context::CDHashSet<Node>; |
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public: |
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TermRegistry(Env& env, QuantifiersState& qs, QuantifiersRegistry& qr); |
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/** Finish init, which sets the inference manager on modules of this class */ |
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void finishInit(FirstOrderModel* fm, QuantifiersInferenceManager* qim); |
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/** Presolve */ |
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void presolve(); |
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/** |
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* Add term n, which notifies the term database that the ground term n |
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* exists in the current context. |
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* |
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* @param n the term to add |
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* @param withinQuant whether n occurs within a quantified formula body |
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*/ |
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void addTerm(Node n, bool withinQuant = false); |
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/** get term for type |
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* |
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* This returns an arbitrary term for type tn. |
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* This term is chosen heuristically to be the best |
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* term for instantiation. Currently, this |
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* heuristic enumerates the first term of the |
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* type if the type is closed enumerable, otherwise |
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* an existing ground term from the term database if |
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* one exists, or otherwise a fresh variable. |
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*/ |
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Node getTermForType(TypeNode tn); |
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/** |
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* Declare pool p with initial value initValue. |
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*/ |
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void declarePool(Node p, const std::vector<Node>& initValue); |
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/** |
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* Process instantiation |
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*/ |
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void processInstantiation(Node q, const std::vector<Node>& terms); |
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void processSkolemization(Node q, const std::vector<Node>& skolems); |
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/** get term database */ |
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TermDb* getTermDatabase() const; |
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/** get term database sygus */ |
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TermDbSygus* getTermDatabaseSygus() const; |
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/** get term enumeration utility */ |
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TermEnumeration* getTermEnumeration() const; |
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/** get the term pools utility */ |
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TermPools* getTermPools() const; |
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/** get the model utility */ |
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FirstOrderModel* getModel() const; |
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private: |
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/** has presolve been called */ |
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context::CDO<bool> d_presolve; |
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/** Whether we are using the fmc model */ |
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bool d_useFmcModel; |
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/** the set of terms we have seen before presolve */ |
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NodeSet d_presolveCache; |
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/** term enumeration utility */ |
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std::unique_ptr<TermEnumeration> d_termEnum; |
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/** term enumeration utility */ |
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std::unique_ptr<TermPools> d_termPools; |
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/** term database */ |
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std::unique_ptr<TermDb> d_termDb; |
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/** sygus term database */ |
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std::unique_ptr<TermDbSygus> d_sygusTdb; |
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/** extended model object */ |
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FirstOrderModel* d_qmodel; |
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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__TERM_REGISTRY_H */ |