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/********************* */
/*! \file smt.cpp
** \verbatim
** Original author: cconway
** Major contributors: none
** Minor contributors (to current version): mdeters
** This file is part of the CVC4 prototype.
** Copyright (c) 2009, 2010 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
**
** Definitions of SMT constants.
**/
#include <ext/hash_map>
namespace std {
using namespace __gnu_cxx;
}
#include "parser/parser.h"
#include "parser/smt/smt.h"
namespace CVC4 {
namespace parser {
std::hash_map<const std::string, Smt::Logic, CVC4::StringHashFunction> Smt::newLogicMap() {
std::hash_map<const std::string, Smt::Logic, CVC4::StringHashFunction> logicMap;
logicMap["QF_AX"] = QF_AX;
logicMap["QF_BV"] = QF_BV;
logicMap["QF_IDL"] = QF_IDL;
logicMap["QF_LIA"] = QF_LIA;
logicMap["QF_LRA"] = QF_LRA;
logicMap["QF_NIA"] = QF_NIA;
logicMap["QF_RDL"] = QF_RDL;
logicMap["QF_SAT"] = QF_SAT;
logicMap["QF_UF"] = QF_UF;
logicMap["QF_UFIDL"] = QF_UFIDL;
return logicMap;
}
Smt::Logic Smt::toLogic(const std::string& name) {
static std::hash_map<const std::string, Smt::Logic, CVC4::StringHashFunction> logicMap = newLogicMap();
return logicMap[name];
}
Smt::Smt(ExprManager* exprManager, Input* input, bool strictMode) :
Parser(exprManager,input,strictMode),
d_logicSet(false) {
// Boolean symbols are always defined
addOperator(kind::AND);
addOperator(kind::EQUAL);
addOperator(kind::IFF);
addOperator(kind::IMPLIES);
addOperator(kind::ITE);
addOperator(kind::NOT);
addOperator(kind::OR);
addOperator(kind::XOR);
}
void Smt::addArithmeticOperators() {
addOperator(kind::PLUS);
addOperator(kind::MINUS);
addOperator(kind::UMINUS);
addOperator(kind::MULT);
addOperator(kind::LT);
addOperator(kind::LEQ);
addOperator(kind::GT);
addOperator(kind::GEQ);
}
/**
* Add theory symbols to the parser state.
*
* @param parser the CVC4 Parser object
* @param theory the theory to open (e.g., Core, Ints)
*/
void Smt::addTheory(Theory theory) {
switch(theory) {
case THEORY_ARRAYS:
case THEORY_ARRAYS_EX: {
Type indexType = mkSort("Index");
Type elementTYpe = mkSort("Element");
// FIXME: should be defineType("Array",arrayType(indexType,elementType))
// but arrayType isn't defined
mkSort("Array");
addOperator(kind::SELECT);
addOperator(kind::STORE);
break;
}
case THEORY_EMPTY:
mkSort("U");
break;
case THEORY_REALS_INTS:
defineType("Real", getExprManager()->realType());
// falling-through on purpose, to add Ints part of RealsInts
case THEORY_INTS:
defineType("Int", getExprManager()->integerType());
addArithmeticOperators();
break;
case THEORY_REALS:
defineType("Real", getExprManager()->realType());
addArithmeticOperators();
break;
default:
Unhandled(theory);
}
}
bool Smt::logicIsSet() {
return d_logicSet;
}
inline void Smt::addUf() {
addTheory(Smt::THEORY_EMPTY);
addOperator(kind::APPLY_UF);
}
/**
* Sets the logic for the current benchmark. Declares any logic and theory symbols.
*
* @param parser the CVC4 Parser object
* @param name the name of the logic (e.g., QF_UF, AUFLIA)
*/
void Smt::setLogic(const std::string& name) {
d_logicSet = true;
d_logic = toLogic(name);
switch(d_logic) {
case QF_AX:
addTheory(THEORY_ARRAYS_EX);
break;
case QF_IDL:
case QF_LIA:
case QF_NIA:
addTheory(THEORY_INTS);
break;
case QF_LRA:
case QF_RDL:
addTheory(THEORY_REALS);
break;
case QF_SAT:
/* no extra symbols needed */
break;
case QF_UFIDL:
case QF_UFLIA:
addTheory(THEORY_INTS);
addUf();
break;
case QF_UFLRA:
case QF_UFNRA:
addTheory(THEORY_REALS);
addUf();
break;
case QF_UF:
addUf();
break;
case AUFLIA:
case AUFLIRA:
case AUFNIRA:
case LRA:
case UFNIA:
case QF_AUFBV:
case QF_AUFLIA:
case QF_BV:
Unhandled(name);
}
}
}/* CVC4::parser namespace */
}/* CVC4 namespace */
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