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Resolve and Expand

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Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 3542))

Abstract

We present a novel expansion based decision procedure for quantified boolean formulas (QBF) in conjunctive normal form (CNF). The basic idea is to resolve existentially quantified variables and eliminate universal variables by expansion. This process is continued until the formula becomes propositional and can be solved by any SAT solver. On structured problems our implementation quantor is competitive with state-of-the-art QBF solvers based on DPLL. It is orders of magnitude faster on certain hard to solve instances.

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© 2005 Springer-Verlag Berlin Heidelberg

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Biere, A. (2005). Resolve and Expand. In: Hoos, H.H., Mitchell, D.G. (eds) Theory and Applications of Satisfiability Testing. SAT 2004. Lecture Notes in Computer Science, vol 3542. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11527695_5

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  • DOI: https://doi.org/10.1007/11527695_5

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-27829-0

  • Online ISBN: 978-3-540-31580-3

  • eBook Packages: Computer ScienceComputer Science (R0)

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