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/********************* */
/*! \file relevant_domain.h
** \verbatim
** Top contributors (to current version):
** Morgan Deters, Andrew Reynolds, Tim King
** This file is part of the CVC4 project.
** Copyright (c) 2009-2017 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 relevant domain class
**/
#include "cvc4_private.h"
#ifndef __CVC4__THEORY__QUANTIFIERS__RELEVANT_DOMAIN_H
#define __CVC4__THEORY__QUANTIFIERS__RELEVANT_DOMAIN_H
#include "theory/quantifiers/first_order_model.h"
namespace CVC4 {
namespace theory {
namespace quantifiers {
class RelevantDomain : public QuantifiersUtil
{
private:
class RDomain
{
public:
RDomain() : d_parent( NULL ) {}
void reset() { d_parent = NULL; d_terms.clear(); }
RDomain * d_parent;
std::vector< Node > d_terms;
void merge( RDomain * r );
void addTerm( Node t );
RDomain * getParent();
void removeRedundantTerms( QuantifiersEngine * qe );
bool hasTerm( Node n ) { return std::find( d_terms.begin(), d_terms.end(), n )!=d_terms.end(); }
};
std::map< Node, std::map< int, RDomain * > > d_rel_doms;
std::map< RDomain *, Node > d_rn_map;
std::map< RDomain *, int > d_ri_map;
QuantifiersEngine* d_qe;
void computeRelevantDomain( Node q, Node n, bool hasPol, bool pol );
void computeRelevantDomainOpCh( RDomain * rf, Node n );
bool d_is_computed;
//what each literal does
class RDomainLit {
public:
RDomainLit() : d_merge(false){
d_rd[0] = NULL;
d_rd[1] = NULL;
}
~RDomainLit(){}
bool d_merge;
RDomain * d_rd[2];
std::vector< Node > d_val;
};
std::map< bool, std::map< bool, std::map< Node, RDomainLit > > > d_rel_dom_lit;
void computeRelevantDomainLit( Node q, bool hasPol, bool pol, Node n );
public:
RelevantDomain( QuantifiersEngine* qe );
virtual ~RelevantDomain();
/* reset */
bool reset( Theory::Effort e );
/** identify */
std::string identify() const { return "RelevantDomain"; }
//compute the relevant domain
void compute();
RDomain * getRDomain( Node n, int i, bool getParent = true );
};/* class RelevantDomain */
}/* CVC4::theory::quantifiers namespace */
}/* CVC4::theory namespace */
}/* CVC4 namespace */
#endif /* __CVC4__THEORY__QUANTIFIERS__RELEVANT_DOMAIN_H */
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