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/****************************************************************************** |
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* Top contributors (to current version): |
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* Andrew Reynolds, Andres Noetzli |
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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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* Sort inference preprocessing pass. |
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*/ |
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#include "preprocessing/passes/sort_infer.h" |
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#include "options/smt_options.h" |
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#include "options/uf_options.h" |
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#include "preprocessing/assertion_pipeline.h" |
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#include "preprocessing/preprocessing_pass_context.h" |
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#include "theory/rewriter.h" |
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#include "theory/sort_inference.h" |
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#include "theory/theory_engine.h" |
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using namespace std; |
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namespace cvc5 { |
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namespace preprocessing { |
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namespace passes { |
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SortInferencePass::SortInferencePass(PreprocessingPassContext* preprocContext) |
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: PreprocessingPass(preprocContext, "sort-inference") |
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{ |
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} |
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PreprocessingPassResult SortInferencePass::applyInternal( |
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AssertionPipeline* assertionsToPreprocess) |
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{ |
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theory::SortInference* si = |
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d_preprocContext->getTheoryEngine()->getSortInference(); |
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if (options().smt.sortInference) |
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{ |
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si->initialize(assertionsToPreprocess->ref()); |
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std::map<Node, Node> model_replace_f; |
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std::map<Node, std::map<TypeNode, Node> > visited; |
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for (unsigned i = 0, size = assertionsToPreprocess->size(); i < size; i++) |
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{ |
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Node prev = (*assertionsToPreprocess)[i]; |
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Node next = si->simplify(prev, model_replace_f, visited); |
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if (next != prev) |
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{ |
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next = rewrite(next); |
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assertionsToPreprocess->replace(i, next); |
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Trace("sort-infer-preprocess") |
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<< "*** Preprocess SortInferencePass " << prev << endl; |
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Trace("sort-infer-preprocess") |
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<< " ...got " << (*assertionsToPreprocess)[i] << endl; |
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} |
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} |
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std::vector<Node> newAsserts; |
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si->getNewAssertions(newAsserts); |
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for (const Node& na : newAsserts) |
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{ |
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Node nar = rewrite(na); |
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Trace("sort-infer-preprocess") |
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<< "*** Preprocess SortInferencePass : new constraint " << nar |
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<< endl; |
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assertionsToPreprocess->push_back(nar); |
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} |
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// could indicate correspondence between the functions |
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// for (f1, f2) in model_replace_f, f1's model should be based on f2. |
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// See cvc4-wishues/issues/75. |
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} |
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// only need to compute monotonicity on the resulting formula if we are |
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// using this option |
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if (options().uf.ufssFairnessMonotone) |
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{ |
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si->computeMonotonicity(assertionsToPreprocess->ref()); |
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} |
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return PreprocessingPassResult::NO_CONFLICT; |
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} |
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} // namespace passes |
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} // namespace preprocessing |
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} // namespace cvc5 |