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/****************************************************************************** |
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* Top contributors (to current version): |
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* Andrew Reynolds, Tim King, Kshitij Bansal |
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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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* Sets theory. |
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*/ |
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#include "cvc5_private.h" |
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#ifndef CVC5__THEORY__SETS__THEORY_SETS_H |
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#define CVC5__THEORY__SETS__THEORY_SETS_H |
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#include <memory> |
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#include "smt/logic_exception.h" |
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#include "theory/sets/inference_manager.h" |
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#include "theory/sets/skolem_cache.h" |
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#include "theory/sets/solver_state.h" |
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#include "theory/theory.h" |
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#include "theory/theory_eq_notify.h" |
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#include "theory/uf/equality_engine.h" |
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namespace cvc5 { |
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namespace theory { |
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namespace sets { |
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class TheorySetsPrivate; |
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class TheorySetsScrutinize; |
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class TheorySets : public Theory |
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{ |
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friend class TheorySetsPrivate; |
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friend class TheorySetsRels; |
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public: |
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/** Constructs a new instance of TheorySets w.r.t. the provided contexts. */ |
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TheorySets(context::Context* c, |
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context::UserContext* u, |
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OutputChannel& out, |
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Valuation valuation, |
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const LogicInfo& logicInfo, |
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ProofNodeManager* pnm); |
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~TheorySets() override; |
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//--------------------------------- initialization |
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/** get the official theory rewriter of this theory */ |
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TheoryRewriter* getTheoryRewriter() override; |
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/** get the proof checker of this theory */ |
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ProofRuleChecker* getProofChecker() override; |
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/** |
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* Returns true if we need an equality engine. If so, we initialize the |
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* information regarding how it should be setup. For details, see the |
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* documentation in Theory::needsEqualityEngine. |
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*/ |
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bool needsEqualityEngine(EeSetupInfo& esi) override; |
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/** finish initialization */ |
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void finishInit() override; |
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//--------------------------------- end initialization |
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//--------------------------------- standard check |
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/** Post-check, called after the fact queue of the theory is processed. */ |
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void postCheck(Effort level) override; |
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/** Notify fact */ |
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void notifyFact(TNode atom, bool pol, TNode fact, bool isInternal) override; |
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//--------------------------------- end standard check |
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/** Collect model values in m based on the relevant terms given by termSet */ |
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bool collectModelValues(TheoryModel* m, |
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const std::set<Node>& termSet) override; |
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void computeCareGraph() override; |
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TrustNode explain(TNode) override; |
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Node getModelValue(TNode) override; |
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std::string identify() const override { return "THEORY_SETS"; } |
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void preRegisterTerm(TNode node) override; |
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/** |
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* If the sets-ext option is not set and we have an extended operator, |
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* we throw an exception. Additionally, we expand operators like choose |
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* and is_singleton. |
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*/ |
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TrustNode ppRewrite(TNode n, std::vector<SkolemLemma>& lems) override; |
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PPAssertStatus ppAssert(TrustNode tin, |
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TrustSubstitutionMap& outSubstitutions) override; |
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void presolve() override; |
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bool isEntailed(Node n, bool pol); |
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private: |
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/** Functions to handle callbacks from equality engine */ |
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class NotifyClass : public TheoryEqNotifyClass |
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{ |
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public: |
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NotifyClass(TheorySetsPrivate& theory, TheoryInferenceManager& im) |
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: TheoryEqNotifyClass(im), d_theory(theory) |
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{ |
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} |
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void eqNotifyNewClass(TNode t) override; |
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void eqNotifyMerge(TNode t1, TNode t2) override; |
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void eqNotifyDisequal(TNode t1, TNode t2, TNode reason) override; |
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private: |
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TheorySetsPrivate& d_theory; |
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}; |
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/** The skolem cache */ |
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SkolemCache d_skCache; |
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/** The state of the sets solver at full effort */ |
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SolverState d_state; |
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/** The inference manager */ |
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InferenceManager d_im; |
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/** The internal theory */ |
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std::unique_ptr<TheorySetsPrivate> d_internal; |
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/** Instance of the above class */ |
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NotifyClass d_notify; |
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}; /* class TheorySets */ |
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} // namespace sets |
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} // namespace theory |
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} // namespace cvc5 |
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#endif /* CVC5__THEORY__SETS__THEORY_SETS_H */ |