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/********************* */
/*! \file infer_info.cpp
** \verbatim
** Top contributors (to current version):
** Mudathir Mohamed, Andrew Reynolds, Gereon Kremer
** This file is part of the CVC4 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.\endverbatim
**
** \brief Implementation of inference information utility.
**/
#include "theory/bags/infer_info.h"
#include "theory/bags/inference_manager.h"
namespace CVC5 {
namespace theory {
namespace bags {
InferInfo::InferInfo(TheoryInferenceManager* im, InferenceId id)
: TheoryInference(id), d_im(im)
{
}
TrustNode InferInfo::processLemma(LemmaProperty& p)
{
NodeManager* nm = NodeManager::currentNM();
Node pnode = nm->mkAnd(d_premises);
Node lemma = nm->mkNode(kind::IMPLIES, pnode, d_conclusion);
// send lemmas corresponding to the skolems introduced
for (const auto& pair : d_skolems)
{
Node n = pair.first.eqNode(pair.second);
TrustNode trustedLemma = TrustNode::mkTrustLemma(n, nullptr);
d_im->trustedLemma(trustedLemma, getId(), p);
}
Trace("bags::InferInfo::process") << (*this) << std::endl;
return TrustNode::mkTrustLemma(lemma, nullptr);
}
bool InferInfo::isTrivial() const
{
Assert(!d_conclusion.isNull());
return d_conclusion.isConst() && d_conclusion.getConst<bool>();
}
bool InferInfo::isConflict() const
{
Assert(!d_conclusion.isNull());
return d_conclusion.isConst() && !d_conclusion.getConst<bool>();
}
bool InferInfo::isFact() const
{
Assert(!d_conclusion.isNull());
TNode atom =
d_conclusion.getKind() == kind::NOT ? d_conclusion[0] : d_conclusion;
return !atom.isConst() && atom.getKind() != kind::OR;
}
std::ostream& operator<<(std::ostream& out, const InferInfo& ii)
{
out << "(infer :id " << ii.getId() << std::endl;
out << ":conclusion " << ii.d_conclusion << std::endl;
if (!ii.d_premises.empty())
{
out << " :premise (" << ii.d_premises << ")" << std::endl;
}
out << ":skolems " << ii.d_skolems << std::endl;
out << ")";
return out;
}
} // namespace bags
} // namespace theory
} // namespace CVC5
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