Boolean Equi-propagation for Optimized SAT Encoding

Amit Metodi; Michael Codish; Vitaly Lagoon; Peter J. Stuckey

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arXiv · 1104.4617

Boolean Equi-propagation for Optimized SAT Encoding

Amit Metodi·Michael Codish·Vitaly Lagoon·Peter J. Stuckey

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Abstract

We present an approach to propagation based solving, Boolean equi-propagation, where constraints are modelled as propagators of information about equalities between Boolean literals. Propagation based solving applies this information as a form of partial evaluation resulting in optimized SAT encodings. We demonstrate for a variety of benchmarks that our approach results in smaller CNF encodings and leads to speed-ups in solving times.

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Amit Metodi, Michael Codish, Vitaly Lagoon, Peter J. Stuckey. 2011-04-24. Boolean Equi-propagation for Optimized SAT Encoding. https://arxiv.org/abs/1104.4617

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