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/******************************************************************************
* Top contributors (to current version):
* Kshitij Bansal, Aina Niemetz, Andrew Reynolds
*
* This file is part of the cvc5 project.
*
* Copyright (c) 2009-2021 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.
* ****************************************************************************
*
* Decision engine.
*/
#include "decision/decision_engine.h"
#include "decision/decision_engine_old.h"
#include "options/decision_options.h"
#include "prop/sat_solver.h"
#include "util/resource_manager.h"
namespace cvc5 {
namespace decision {
DecisionEngine::DecisionEngine(context::Context* c,
context::UserContext* u,
prop::SkolemDefManager* skdm,
ResourceManager* rm)
: d_decEngineOld(new DecisionEngineOld(c, u)),
d_jstrat(new JustificationStrategy(c, u, skdm)),
d_resourceManager(rm),
d_useOld(options::decisionMode() != options::DecisionMode::JUSTIFICATION)
{
}
void DecisionEngine::finishInit(prop::CDCLTSatSolverInterface* ss,
prop::CnfStream* cs)
{
if (d_useOld)
{
d_decEngineOld->setSatSolver(ss);
d_decEngineOld->setCnfStream(cs);
return;
}
d_jstrat->finishInit(ss, cs);
}
void DecisionEngine::presolve()
{
if (!d_useOld)
{
d_jstrat->presolve();
}
}
prop::SatLiteral DecisionEngine::getNext(bool& stopSearch)
{
d_resourceManager->spendResource(Resource::DecisionStep);
if (d_useOld)
{
return d_decEngineOld->getNext(stopSearch);
}
return d_jstrat->getNext(stopSearch);
}
bool DecisionEngine::isDone()
{
if (d_useOld)
{
return d_decEngineOld->isDone();
}
return d_jstrat->isDone();
}
void DecisionEngine::addAssertion(TNode assertion)
{
if (d_useOld)
{
d_decEngineOld->addAssertion(assertion);
return;
}
d_jstrat->addAssertion(assertion);
}
void DecisionEngine::addSkolemDefinition(TNode lem, TNode skolem)
{
if (d_useOld)
{
d_decEngineOld->addSkolemDefinition(lem, skolem);
}
else
{
d_jstrat->addSkolemDefinition(lem, skolem);
}
}
void DecisionEngine::notifyAsserted(TNode n)
{
if (d_useOld)
{
return;
}
// old implementation does not use this
d_jstrat->notifyAsserted(n);
}
} // namespace decision
} // namespace cvc5
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