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/****************************************************************************** |
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* Top contributors (to current version): |
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* Mathias Preiner, Haniel Barbosa, 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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* Bit-blast solver that sends bit-blast lemmas directly to the internal |
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* MiniSat. |
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*/ |
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#include "cvc5_private.h" |
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#ifndef CVC5__THEORY__BV__BV_SOLVER_BITBLAST_INTERNAL_H |
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#define CVC5__THEORY__BV__BV_SOLVER_BITBLAST_INTERNAL_H |
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#include "smt/env_obj.h" |
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#include "theory/bv/bitblast/proof_bitblaster.h" |
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#include "theory/bv/bv_solver.h" |
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#include "theory/bv/proof_checker.h" |
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namespace cvc5 { |
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namespace theory { |
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namespace bv { |
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/** |
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* Bit-blasting solver that sends bit-blasting lemmas directly to the |
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* internal MiniSat. It is also ablo to handle atoms of kind |
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* BITVECTOR_EAGER_ATOM. |
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* |
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* Sends lemmas atom <=> bb(atom) to MiniSat on preNotifyFact(). |
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*/ |
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class BVSolverBitblastInternal : public BVSolver |
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{ |
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public: |
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BVSolverBitblastInternal(Env& env, |
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TheoryState* state, |
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TheoryInferenceManager& inferMgr, |
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ProofNodeManager* pnm); |
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~BVSolverBitblastInternal() = default; |
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bool needsEqualityEngine(EeSetupInfo& esi) override { return true; } |
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void preRegisterTerm(TNode n) override {} |
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bool preNotifyFact(TNode atom, |
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bool pol, |
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TNode fact, |
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bool isPrereg, |
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bool isInternal) override; |
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TrustNode explain(TNode n) override; |
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std::string identify() const override { return "BVSolverBitblastInternal"; }; |
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bool collectModelValues(TheoryModel* m, |
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const std::set<Node>& termSet) override; |
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Node getValue(TNode node, bool initialize) override; |
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/** get the proof checker of this theory */ |
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BVProofRuleChecker* getProofChecker(); |
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private: |
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/** |
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* Sends a bit-blasting lemma fact <=> d_bitblaster.bbAtom(fact) to the |
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* inference manager. |
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*/ |
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void addBBLemma(TNode fact); |
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/** Proof node manager. */ |
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ProofNodeManager* d_pnm; |
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/** Bit-blaster used to bit-blast atoms/terms. */ |
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std::unique_ptr<BBProof> d_bitblaster; |
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/** Proof rule checker */ |
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BVProofRuleChecker d_checker; |
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/** Proof generator for unpacking BITVECTOR_EAGER_ATOM. */ |
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std::unique_ptr<EagerProofGenerator> d_epg; |
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}; |
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} // namespace bv |
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} // namespace theory |
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} // namespace cvc5 |
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#endif |