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/********************* */
/*! \file bv_bitblast_mode.h
** \verbatim
** Top contributors (to current version):
** Liana Hadarean, Alex Ozdemir, Mathias Preiner
** This file is part of the CVC4 project.
** Copyright (c) 2009-2019 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 Bitblasting modes for bit-vector solver.
**
** Bitblasting modes for bit-vector solver.
**/
#include "cvc4_private.h"
#ifndef CVC4__THEORY__BV__BITBLAST_MODE_H
#define CVC4__THEORY__BV__BITBLAST_MODE_H
#include <iosfwd>
namespace CVC4 {
namespace theory {
namespace bv {
/** Enumeration of bit-blasting modes */
enum BitblastMode {
/**
* Lazy bit-blasting that separates boolean reasoning
* from term reasoning.
*/
BITBLAST_MODE_LAZY,
/**
* Bit-blast eagerly to the bit-vector SAT solver.
*/
BITBLAST_MODE_EAGER
};/* enum BitblastMode */
/** Enumeration of bit-vector equality slicer mode */
enum BvSlicerMode {
/**
* Force the slicer on.
*/
BITVECTOR_SLICER_ON,
/**
* Slicer off.
*/
BITVECTOR_SLICER_OFF,
/**
* Auto enable slicer if problem has only equalities.
*/
BITVECTOR_SLICER_AUTO
};/* enum BvSlicerMode */
/** Enumeration of sat solvers that can be used. */
enum SatSolverMode
{
SAT_SOLVER_MINISAT,
SAT_SOLVER_CRYPTOMINISAT,
SAT_SOLVER_CADICAL,
}; /* enum SatSolver */
/**
* When the BV solver does eager bitblasting backed by CryptoMiniSat, proofs
* can be written in a variety of formats.
*/
enum BvProofFormat
{
/**
* Write extended resolution proofs.
*/
BITVECTOR_PROOF_ER,
/**
* Write DRAT proofs.
*/
BITVECTOR_PROOF_DRAT,
/**
* Write LRAT proofs.
*/
BITVECTOR_PROOF_LRAT,
};
/**
* When the BV solver does eager bit-blasting backed by DRAT-producing SAT solvers, proofs
* can be written in a variety of formats.
*/
enum BvOptimizeSatProof
{
/**
* Do not optimize the SAT proof.
*/
BITVECTOR_OPTIMIZE_SAT_PROOF_NONE = 0,
/**
* Optimize the SAT proof, but do not shrink the formula
*/
BITVECTOR_OPTIMIZE_SAT_PROOF_PROOF = 1,
/**
* Optimize the SAT proof and shrink the formula
*/
BITVECTOR_OPTIMIZE_SAT_PROOF_FORMULA = 2,
};
}/* CVC4::theory::bv namespace */
}/* CVC4::theory namespace */
std::ostream& operator<<(std::ostream& out, theory::bv::BitblastMode mode);
std::ostream& operator<<(std::ostream& out, theory::bv::BvSlicerMode mode);
std::ostream& operator<<(std::ostream& out, theory::bv::SatSolverMode mode);
std::ostream& operator<<(std::ostream& out, theory::bv::BvProofFormat format);
std::ostream& operator<<(std::ostream& out, theory::bv::BvOptimizeSatProof level);
}/* CVC4 namespace */
#endif /* CVC4__THEORY__BV__BITBLAST_MODE_H */
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