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/****************************************************************************** |
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* Top contributors (to current version): |
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* Gereon Kremer, Aina Niemetz |
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* |
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* This file is part of the cvc5 project. |
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* |
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* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS |
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* in the top-level source directory and their institutional affiliations. |
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* All rights reserved. See the file COPYING in the top-level source |
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* directory for licensing information. |
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* **************************************************************************** |
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* |
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* Implementation of CAD proof checker. |
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*/ |
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#include "theory/arith/nl/cad/proof_checker.h" |
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#include "expr/sequence.h" |
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#include "theory/rewriter.h" |
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using namespace cvc5::kind; |
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namespace cvc5 { |
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namespace theory { |
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namespace arith { |
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namespace nl { |
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namespace cad { |
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void CADProofRuleChecker::registerTo(ProofChecker* pc) |
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{ |
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// trusted rules |
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pc->registerTrustedChecker(PfRule::ARITH_NL_CAD_DIRECT, this, 2); |
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pc->registerTrustedChecker(PfRule::ARITH_NL_CAD_RECURSIVE, this, 2); |
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} |
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Node CADProofRuleChecker::checkInternal(PfRule id, |
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const std::vector<Node>& children, |
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const std::vector<Node>& args) |
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{ |
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Trace("nl-cad-checker") << "Checking " << id << std::endl; |
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for (const auto& c : children) |
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{ |
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Trace("nl-cad-checker") << "\t" << c << std::endl; |
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} |
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if (id == PfRule::ARITH_NL_CAD_DIRECT) |
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{ |
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Assert(args.size() == 1); |
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return args[0]; |
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} |
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if (id == PfRule::ARITH_NL_CAD_RECURSIVE) |
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{ |
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Assert(args.size() == 1); |
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return args[0]; |
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} |
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return Node::null(); |
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} |
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} // namespace cad |
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} // namespace nl |
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} // namespace arith |
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} // namespace theory |
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} // namespace cvc5 |