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/********************* */
/*! \file bv_subtheory_inequality.h
** \verbatim
** Original author: lianah <lianahady@gmail.com>
** Major contributors: none
** Minor contributors (to current version): Liana Hadarean <lianahady@gmail.com>
** This file is part of the CVC4 project.
** Copyright (c) 2009-2013 New York University and The University of Iowa
** See the file COPYING in the top-level source directory for licensing
** information.\endverbatim
**
** \brief Algebraic solver.
**
** Algebraic solver.
**/
#include "cvc4_private.h"
#ifndef __CVC4__THEORY__BV__BV_SUBTHEORY__INEQUALITY_H
#define __CVC4__THEORY__BV__BV_SUBTHEORY__INEQUALITY_H
#include "theory/bv/bv_subtheory.h"
#include "theory/bv/bv_inequality_graph.h"
#include "context/cdhashset.h"
namespace CVC4 {
namespace theory {
namespace bv {
class InequalitySolver: public SubtheorySolver {
struct Statistics {
IntStat d_numCallstoCheck;
Statistics();
~Statistics();
};
context::CDHashSet<Node, NodeHashFunction> d_assertionSet;
InequalityGraph d_inequalityGraph;
context::CDHashMap<Node, TNode, NodeHashFunction> d_explanations;
context::CDO<bool> d_isComplete;
__gnu_cxx::hash_map<TNode, bool, TNodeHashFunction> d_ineqTermCache;
bool isInequalityOnly(TNode node);
Statistics d_statistics;
public:
InequalitySolver(context::Context* c, TheoryBV* bv)
: SubtheorySolver(c, bv),
d_assertionSet(c),
d_inequalityGraph(c),
d_explanations(c),
d_isComplete(c, true),
d_ineqTermCache(),
d_statistics()
{}
bool check(Theory::Effort e);
void propagate(Theory::Effort e);
void explain(TNode literal, std::vector<TNode>& assumptions);
bool isComplete() { return d_isComplete; }
void collectModelInfo(TheoryModel* m);
Node getModelValue(TNode var);
EqualityStatus getEqualityStatus(TNode a, TNode b);
void assertFact(TNode fact);
};
}
}
}
#endif /* __CVC4__THEORY__BV__BV_SUBTHEORY__INEQUALITY_H */
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