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/********************* */
/*! \file bv_solver_simple.h
** \verbatim
** Top contributors (to current version):
** Mathias Preiner, Andrew Reynolds, Aina Niemetz
** This file is part of the CVC4 project.
** Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
** in the top-level source directory and their institutional affiliations.
** All rights reserved. See the file COPYING in the top-level source
** directory for licensing information.\endverbatim
**
** \brief Simple bit-blast solver
**
** Simple bit-blast solver that sends bit-blast lemmas directly to MiniSat.
**/
#include "cvc4_private.h"
#ifndef CVC5__THEORY__BV__BV_SOLVER_SIMPLE_H
#define CVC5__THEORY__BV__BV_SOLVER_SIMPLE_H
#include "theory/bv/bitblast/proof_bitblaster.h"
#include "theory/bv/bv_solver.h"
#include "theory/bv/proof_checker.h"
#include "theory/eager_proof_generator.h"
namespace cvc5 {
namespace theory {
namespace bv {
/**
* Simple bit-blasting solver that sends bit-blasting lemmas directly to the
* internal MiniSat. It is also ablo to handle atoms of kind
* BITVECTOR_EAGER_ATOM.
*
* Sends lemmas atom <=> bb(atom) to MiniSat on preNotifyFact().
*/
class BVSolverSimple : public BVSolver
{
public:
BVSolverSimple(TheoryState* state,
TheoryInferenceManager& inferMgr,
ProofNodeManager* pnm);
~BVSolverSimple() = default;
void preRegisterTerm(TNode n) override {}
bool preNotifyFact(TNode atom,
bool pol,
TNode fact,
bool isPrereg,
bool isInternal) override;
std::string identify() const override { return "BVSolverSimple"; };
Theory::PPAssertStatus ppAssert(
TrustNode in, TrustSubstitutionMap& outSubstitutions) override
{
return Theory::PPAssertStatus::PP_ASSERT_STATUS_UNSOLVED;
}
bool collectModelValues(TheoryModel* m,
const std::set<Node>& termSet) override;
/** get the proof checker of this theory */
BVProofRuleChecker* getProofChecker();
private:
/**
* Sends a bit-blasting lemma fact <=> d_bitblaster.bbAtom(fact) to the
* inference manager.
*/
void addBBLemma(TNode fact);
/** Bit-blaster used to bit-blast atoms/terms. */
std::unique_ptr<BBProof> d_bitblaster;
/** Proof generator that manages proofs for lemmas generated by this class. */
std::unique_ptr<EagerProofGenerator> d_epg;
/** Proof rule checker */
BVProofRuleChecker d_checker;
};
} // namespace bv
} // namespace theory
} // namespace cvc5
#endif
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