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Improved Local Search for Circuit Satisfiability

  • Anton Belov
  • Zbigniew Stachniak
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6175)

Abstract

In this paper we describe a significant improvement to the justificationbased local search algorithm for circuit satisfiability proposed by Järvisalo et al [7]. By carefully combining local search with Boolean Constraint Propagation we achieve multiple orders of magnitude reduction in run-time on industrial and structured benchmark circuits, and, in some cases, performance comparable with complete SAT solvers.

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References

  1. 1.
    Belov, A., Stachniak, Z.: Improving Variable Selection Process in Stochastic Local Search for Propositional Satisfiability. In: Kullmann, O. (ed.) SAT 2009. LNCS, vol. 5584, pp. 258–264. Springer, Heidelberg (2009)CrossRefGoogle Scholar
  2. 2.
    Belov, A.: Stochastic Local Search for Non-Clausal and Circuit Satisfiability. In: preparation PhD Thesis, York University, Toronto, Canada (2010)Google Scholar
  3. 3.
    Crawford, J.M., Kearns, M.J., Shapire, R.E.: The Minimal Disagreement Parity Problem as Hard Satisfiability Problem. Tech. report CIRL and ATT Bell Labs (1994)Google Scholar
  4. 4.
    Eén, N., Sörensson, N.: An Extensible SAT-solver. In: Giunchiglia, E., Tacchella, A. (eds.) SAT 2003. LNCS, vol. 2919, pp. 502–518. Springer, Heidelberg (2004)CrossRefGoogle Scholar
  5. 5.
    Hirsch, E.A., Kojevnikov, A.: UnitWalk: A New SAT Solver that Uses Local Search Guided by Unit Clause Elimination. Annals of Mathematics and Artificial Intelligence (2005)Google Scholar
  6. 6.
    Hoos, H.H., Stutzle, T.: Local Search Algorithms for SAT: An Empirical Evaluation. J. of Automated Reasoning (2000)Google Scholar
  7. 7.
    Järvisalo, M., Junttila, T., Niemelä, I.: Justification-Based Non-Clausal Local Search for SAT. In: Proc. of ECAI 2008 (2008)Google Scholar
  8. 8.
    Junttila, T.: The BC Package and a File Format for Constrained Boolean Circuits, http://www.tcs.hut.fi/~tjunttil/bcsat/
  9. 9.
    Kuehlmann, A., Ganai, M., Paruthi, V.: Circuit-based Boolean Reasoning. In: Proc. of DAC 2001 (2001)Google Scholar
  10. 10.
    Pham, D.N., Thornton, J., Sattar, A.: Building Structure into Local Search for SAT. In: Proc. of IJCAI 2007 (2007)Google Scholar
  11. 11.

Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Anton Belov
    • 1
  • Zbigniew Stachniak
    • 1
  1. 1.Department of Computer Science and EngineeringYork UniversityTorontoCanada

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