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/********************* */
/*! \file model_builder.h
** \verbatim
** Top contributors (to current version):
** Andrew Reynolds, Morgan Deters, 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 Model Builder class
**/
#include "cvc4_private.h"
#ifndef CVC4__THEORY__QUANTIFIERS__MODEL_BUILDER_H
#define CVC4__THEORY__QUANTIFIERS__MODEL_BUILDER_H
#include "theory/quantifiers_engine.h"
#include "theory/theory_model_builder.h"
#include "theory/uf/theory_uf_model.h"
namespace CVC4 {
namespace theory {
namespace quantifiers {
class QModelBuilder : public TheoryEngineModelBuilder
{
protected:
//quantifiers engine
QuantifiersEngine* d_qe;
// must call preProcessBuildModelStd
bool preProcessBuildModel(TheoryModel* m) override;
bool preProcessBuildModelStd(TheoryModel* m);
/** number of lemmas generated while building model */
unsigned d_addedLemmas;
unsigned d_triedLemmas;
public:
QModelBuilder( context::Context* c, QuantifiersEngine* qe );
//do exhaustive instantiation
// 0 : failed, but resorting to true exhaustive instantiation may work
// >0 : success
// <0 : failed
virtual int doExhaustiveInstantiation( FirstOrderModel * fm, Node f, int effort ) { return false; }
//whether to construct model
virtual bool optUseModel();
/** exist instantiation ? */
virtual bool existsInstantiation( Node f, InstMatch& m, bool modEq = true, bool modInst = false ) { return false; }
//debug model
void debugModel(TheoryModel* m) override;
//statistics
unsigned getNumAddedLemmas() { return d_addedLemmas; }
unsigned getNumTriedLemmas() { return d_triedLemmas; }
};
}/* CVC4::theory::quantifiers namespace */
}/* CVC4::theory namespace */
}/* CVC4 namespace */
#endif /* CVC4__THEORY__QUANTIFIERS__MODEL_BUILDER_H */
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