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/********************* */
/*! \file model_builder.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 The Analysis of Computer Systems Group (ACSys)
** Courant Institute of Mathematical Sciences
** New York University
** 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/model.h"
#include "theory/uf/theory_uf_model.h"
namespace CVC4 {
namespace theory {
namespace quantifiers {
//the model builder
class ModelEngineBuilder : public TheoryEngineModelBuilder
{
protected:
//quantifiers engine
QuantifiersEngine* d_qe;
//map from operators to model preference data
std::map< Node, uf::UfModelPreferenceData > d_uf_prefs;
//built model uf
std::map< Node, bool > d_uf_model_constructed;
/** process build model */
void processBuildModel( TheoryModel* m );
/** choose representative for unconstrained equivalence class */
Node chooseRepresentative( TheoryModel* m, Node eqc );
/** bad representative */
bool isBadRepresentative( Node n );
protected:
//analyze model
void analyzeModel( FirstOrderModel* fm );
//analyze quantifiers
void analyzeQuantifiers( FirstOrderModel* fm );
//build model
void finishBuildModel( FirstOrderModel* fm );
//theory-specific build models
void finishBuildModelUf( FirstOrderModel* fm, Node op );
//do InstGen techniques for quantifier, return number of lemmas produced
int doInstGen( FirstOrderModel* fm, Node f );
public:
ModelEngineBuilder( QuantifiersEngine* qe );
virtual ~ModelEngineBuilder(){}
/** finish model */
void finishProcessBuildModel( TheoryModel* m );
public:
/** number of lemmas generated while building model */
int d_addedLemmas;
//map from quantifiers to if are constant SAT
std::map< Node, bool > d_quant_sat;
//map from quantifiers to the instantiation literals that their model is dependent upon
std::map< Node, std::vector< Node > > d_quant_selection_lits;
public:
//map from quantifiers to model basis match
std::map< Node, InstMatch > d_quant_basis_match;
//options
bool optUseModel();
bool optInstGen();
bool optOneQuantPerRoundInstGen();
/** statistics class */
class Statistics {
public:
IntStat d_pre_sat_quant;
IntStat d_pre_nsat_quant;
Statistics();
~Statistics();
};
Statistics d_statistics;
};/* class ModelEngineBuilder */
}/* CVC4::theory::quantifiers namespace */
}/* CVC4::theory namespace */
}/* CVC4 namespace */
#endif /* __CVC4__THEORY__QUANTIFIERS__MODEL_BUILDER_H */
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