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/********************* */
/*! \file model_engine.h
** \verbatim
** Original author: ajreynol
** Major contributors: mdeters
** Minor contributors (to current version): none
** This file is part of the CVC4 prototype.
** Copyright (c) 2009-2012 New York University and The University of Iowa
** See the file COPYING in the top-level source directory for licensing
** information.\endverbatim
**
** \brief Model Engine class
**/
#include "cvc4_private.h"
#ifndef __CVC4__THEORY__QUANTIFIERS__MODEL_ENGINE_H
#define __CVC4__THEORY__QUANTIFIERS__MODEL_ENGINE_H
#include "theory/quantifiers_engine.h"
#include "theory/quantifiers/model_builder.h"
#include "theory/model.h"
#include "theory/quantifiers/relevant_domain.h"
namespace CVC4 {
namespace theory {
namespace quantifiers {
class ModelEngine : public QuantifiersModule
{
friend class RepSetIterator;
private:
/** builder class */
ModelEngineBuilder* d_builder;
private: //analysis of current model:
//relevant domain
RelevantDomain d_rel_domain;
//is the exhaustive instantiation incomplete?
bool d_incomplete_check;
private:
//options
bool optOneInstPerQuantRound();
bool optUseRelevantDomain();
bool optOneQuantPerRound();
bool optExhInstEvalSkipMultiple();
private:
enum{
check_model_full,
check_model_no_inst_gen,
};
//check model
int checkModel( int checkOption );
//exhaustively instantiate quantifier (possibly using mbqi), return number of lemmas produced
int exhaustiveInstantiate( Node f, bool useRelInstDomain = false );
private:
//temporary statistics
int d_triedLemmas;
int d_testLemmas;
int d_totalLemmas;
int d_relevantLemmas;
public:
ModelEngine( context::Context* c, QuantifiersEngine* qe );
~ModelEngine(){}
//get the builder
ModelEngineBuilder* getModelBuilder() { return d_builder; }
public:
void check( Theory::Effort e );
void registerQuantifier( Node f );
void assertNode( Node f );
Node explain(TNode n){ return Node::null(); }
void debugPrint( const char* c );
public:
/** statistics class */
class Statistics {
public:
IntStat d_inst_rounds;
IntStat d_eval_formulas;
IntStat d_eval_uf_terms;
IntStat d_eval_lits;
IntStat d_eval_lits_unknown;
IntStat d_exh_inst_lemmas;
Statistics();
~Statistics();
};
Statistics d_statistics;
};/* class ModelEngine */
}/* CVC4::theory::quantifiers namespace */
}/* CVC4::theory namespace */
}/* CVC4 namespace */
#endif /* __CVC4__THEORY__QUANTIFIERS__MODEL_ENGINE_H */
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