diff options
Diffstat (limited to 'src/preprocessing/passes/static_learning.cpp')
-rw-r--r-- | src/preprocessing/passes/static_learning.cpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/preprocessing/passes/static_learning.cpp b/src/preprocessing/passes/static_learning.cpp new file mode 100644 index 000000000..0a792b5d4 --- /dev/null +++ b/src/preprocessing/passes/static_learning.cpp @@ -0,0 +1,55 @@ +/********************* */ +/*! \file static_learning.cpp + ** \verbatim + ** Top contributors (to current version): + ** Yoni Zohar + ** This file is part of the CVC4 project. + ** Copyright (c) 2009-2018 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 The static learning preprocessing pass + ** + **/ + +#include "preprocessing/passes/static_learning.h" + +#include <string> + +#include "expr/node.h" + +namespace CVC4 { +namespace preprocessing { +namespace passes { + +StaticLearning::StaticLearning(PreprocessingPassContext* preprocContext) + : PreprocessingPass(preprocContext, "static-learning"){}; + +PreprocessingPassResult StaticLearning::applyInternal( + AssertionPipeline* assertionsToPreprocess) +{ + NodeManager::currentResourceManager()->spendResource( + options::preprocessStep()); + + for (unsigned i = 0; i < assertionsToPreprocess->size(); ++i) + { + NodeBuilder<> learned(kind::AND); + learned << (*assertionsToPreprocess)[i]; + d_preprocContext->getTheoryEngine()->ppStaticLearn( + (*assertionsToPreprocess)[i], learned); + if (learned.getNumChildren() == 1) + { + learned.clear(); + } + else + { + assertionsToPreprocess->replace(i, learned); + } + } + return PreprocessingPassResult::NO_CONFLICT; +} + +} // namespace passes +} // namespace preprocessing +} // namespace CVC4 |