Refactor bv-abstraction preprocessing pass. (#1860)

1 files changed, 50 insertions, 0 deletions

diff --git a/src/preprocessing/passes/bv_abstraction.h b/src/preprocessing/passes/bv_abstraction.h
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+++ b/src/preprocessing/passes/bv_abstraction.h
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+/*********************                                                        */
+/*! \file bv_abstraction.h
+ ** \verbatim
+ ** Top contributors (to current version):
+ **   Mathias Preiner
+ ** 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 BvAbstraction preprocessing pass
+ **
+ ** Abstract common structures over small domains to UF. This preprocessing
+ ** is particularly useful on QF_BV/mcm benchmarks and can be enabled via
+ ** option `--bv-abstraction`.
+ ** For more information see 3.4 Refactoring Isomorphic Circuits in [1].
+ **
+ ** [1] Liana Hadarean, An Efficient and Trustworthy Theory Solver for
+ **     Bit-vectors in Satisfiability Modulo Theories
+ **     https://cs.nyu.edu/media/publications/hadarean_liana.pdf
+ **/
+
+#include "cvc4_private.h"
+
+#ifndef __CVC4__PREPROCESSING__PASSES__BV_ABSTRACTION_H
+#define __CVC4__PREPROCESSING__PASSES__BV_ABSTRACTION_H
+
+#include "preprocessing/preprocessing_pass.h"
+#include "preprocessing/preprocessing_pass_context.h"
+
+namespace CVC4 {
+namespace preprocessing {
+namespace passes {
+
+class BvAbstraction : public PreprocessingPass
+{
+ public:
+  BvAbstraction(PreprocessingPassContext* preprocContext);
+
+ protected:
+  PreprocessingPassResult applyInternal(
+      AssertionPipeline* assertionsToPreprocess) override;
+};
+
+}  // namespace passes
+}  // namespace preprocessing
+}  // namespace CVC4
+
+#endif /* __CVC4__PREPROCESSING__PASSES__BV_ABSTRACTION_H */