Variable and clause elimination for LTL satisfiability checking

Martin Suda

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arXiv · 1306.5539

Variable and clause elimination for LTL satisfiability checking

Martin Suda

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Abstract

We study preprocessing techniques for clause normal forms of LTL formulas. Applying the mechanism of labelled clauses enables us to reinterpret LTL satisfiability as a set of purely propositional problems and thus to transfer simplification ideas from SAT to LTL. We demonstrate this by adapting variable and clause elimination, a very effective preprocessing technique used by modern SAT solvers. Our experiments confirm that even in the temporal setting substantial reductions in formula size and subsequent decrease of solver runtime can be achieved.

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Martin Suda. 2013-06-24. Variable and clause elimination for LTL satisfiability checking. https://arxiv.org/abs/1306.5539

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