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/********************* */
/** smt_engine.cpp
** Original author: mdeters
** Major contributors: dejan
** Minor contributors (to current version): none
** 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.
**
**/
#include "smt/smt_engine.h"
#include "expr/command.h"
#include "expr/node_builder.h"
#include "util/output.h"
#include "util/exception.h"
#include "util/options.h"
#include "prop/prop_engine.h"
using namespace CVC4::prop;
using CVC4::context::Context;
namespace CVC4 {
SmtEngine::SmtEngine(ExprManager* em, const Options* opts) throw () :
d_ctxt(new Context),
d_exprManager(em),
d_nodeManager(em->getNodeManager()),
d_options(opts) {
NodeManagerScope nms(d_nodeManager);
d_decisionEngine = new DecisionEngine;
d_theoryEngine = new TheoryEngine(this, d_ctxt);
d_propEngine = new PropEngine(opts, d_decisionEngine, d_theoryEngine, d_ctxt);
}
SmtEngine::~SmtEngine() {
delete d_propEngine;
delete d_theoryEngine;
delete d_decisionEngine;
delete d_ctxt;
}
void SmtEngine::doCommand(Command* c) {
NodeManagerScope nms(d_nodeManager);
c->invoke(this);
}
Node SmtEngine::preprocess(TNode e) {
return e;
}
Result SmtEngine::check() {
Debug("smt") << "SMT check()" << std::endl;
return d_propEngine->checkSat();
}
Result SmtEngine::quickCheck() {
Debug("smt") << "SMT quickCheck()" << std::endl;
return Result(Result::VALIDITY_UNKNOWN);
}
void SmtEngine::addFormula(TNode e) {
Debug("smt") << "push_back assertion " << e << std::endl;
d_propEngine->assertFormula(preprocess(e));
}
Result SmtEngine::checkSat(const BoolExpr& e) {
NodeManagerScope nms(d_nodeManager);
Debug("smt") << "SMT checkSat(" << e << ")" << std::endl;
addFormula(e.getNode());
Result r = check().asSatisfiabilityResult();
Debug("smt") << "SMT checkSat(" << e << ") ==> " << r << std::endl;
return r;
}
Result SmtEngine::query(const BoolExpr& e) {
NodeManagerScope nms(d_nodeManager);
Debug("smt") << "SMT query(" << e << ")" << std::endl;
addFormula(e.getNode().notNode());
Result r = check().asValidityResult();
Debug("smt") << "SMT query(" << e << ") ==> " << r << std::endl;
return r;
}
Result SmtEngine::assertFormula(const BoolExpr& e) {
NodeManagerScope nms(d_nodeManager);
Debug("smt") << "SMT assertFormula(" << e << ")" << std::endl;
addFormula(e.getNode());
return quickCheck().asValidityResult();
}
Expr SmtEngine::simplify(const Expr& e) {
NodeManagerScope nms(d_nodeManager);
Debug("smt") << "SMT simplify(" << e << ")" << std::endl;
Unimplemented();
}
Model SmtEngine::getModel() {
NodeManagerScope nms(d_nodeManager);
Unimplemented();
}
void SmtEngine::push() {
NodeManagerScope nms(d_nodeManager);
Debug("smt") << "SMT push()" << std::endl;
Unimplemented();
}
void SmtEngine::pop() {
NodeManagerScope nms(d_nodeManager);
Debug("smt") << "SMT pop()" << std::endl;
Unimplemented();
}
}/* CVC4 namespace */
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