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/********************* */
/*! \file model_engine.h
** \verbatim
** Top contributors (to current version):
** Andrew Reynolds, Mathias Preiner, Morgan Deters
** This file is part of the CVC4 project.
** Copyright (c) 2009-2020 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 Engine class
**/
#include "cvc4_private.h"
#ifndef CVC4__THEORY__QUANTIFIERS__MODEL_ENGINE_H
#define CVC4__THEORY__QUANTIFIERS__MODEL_ENGINE_H
#include "theory/quantifiers/fmf/model_builder.h"
#include "theory/quantifiers/quant_util.h"
#include "theory/theory_model.h"
namespace CVC4 {
namespace theory {
namespace quantifiers {
class ModelEngine : public QuantifiersModule
{
friend class RepSetIterator;
private:
//check model
int checkModel();
//exhaustively instantiate quantifier (possibly using mbqi)
void exhaustiveInstantiate( Node f, int effort = 0 );
private:
//temporary statistics
//is the exhaustive instantiation incomplete?
bool d_incomplete_check;
// set of quantified formulas for which check was incomplete
std::vector< Node > d_incomplete_quants;
int d_addedLemmas;
int d_triedLemmas;
int d_totalLemmas;
public:
ModelEngine( context::Context* c, QuantifiersEngine* qe );
virtual ~ModelEngine();
public:
bool needsCheck(Theory::Effort e) override;
QEffort needsModel(Theory::Effort e) override;
void reset_round(Theory::Effort e) override;
void check(Theory::Effort e, QEffort quant_e) override;
bool checkComplete() override;
bool checkCompleteFor(Node q) override;
void registerQuantifier(Node f) override;
void assertNode(Node f) override;
Node explain(TNode n) { return Node::null(); }
void debugPrint(const char* c);
/** Identify this module */
std::string identify() const override { return "ModelEngine"; }
};/* class ModelEngine */
}/* CVC4::theory::quantifiers namespace */
}/* CVC4::theory namespace */
}/* CVC4 namespace */
#endif /* CVC4__THEORY__QUANTIFIERS__MODEL_ENGINE_H */
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