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Lookahead Saturation with Restriction for SAT

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Principles and Practice of Constraint Programming - CP 2005 (CP 2005)

Part of the book series: Lecture Notes in Computer Science ((LNPSE,volume 3709))

Abstract

We present a new and more efficient heuristic by restricting lookahead saturation (LAS) with NVO (neighbourhood variable ordering) and DEW (dynamic equality weighting). We report on the integration of this heuristic in Satz, a high-performance SAT solver, showing empirically that it significantly improves the performance on an extensive range of benchmark problems that exhibit hard structure.

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References

  1. Li, C.M., Anbulagan, A.: Heuristics based on unit propagation for satisfiability problems. In: Proceedings of 15th IJCAI, Nagoya, Aichi, Japan, pp. 366–371 (1997)

    Google Scholar 

  2. Anbulagan, A.: Extending unit propagation look-ahead of DPLL procedure. In: Zhang, C., Guesgen, H.W., Yeap, W.-K. (eds.) PRICAI 2004. LNCS (LNAI), vol. 3157, pp. 173–182. Springer, Heidelberg (2004)

    Chapter  Google Scholar 

  3. Bessière, C., Debruyne, R.: Theoretical analysis of singleton arc consistency. In: ECAI 2004 Workshop on Modeling and Solving Problems with Constraints, Valencia, Spain, pp. 20–29 (2004)

    Google Scholar 

  4. Selman, B., Kautz, H., McAllester, D.: Ten challenges in propositional reasoning and search. In: Proceedings of 15th IJCAI, Nagoya, Aichi, Japan, pp. 50–54 (1997)

    Google Scholar 

  5. Warners, J.P., van Maaren, H.: A two-phase algorithm for solving a class of hard satisfiability problems. Operations Research Letters 23, 81–88 (1998)

    Article  MATH  MathSciNet  Google Scholar 

  6. Li, C.M.: Integrating equivalency reasoning into Davis-Putnam procedure. In: Proceedings of 17th AAAI, USA, pp. 291–296. AAAI Press, Menlo Park (2000)

    Google Scholar 

  7. Ostrowski, R., Grégoire, E., Mazure, B., Sais, L.: Recovering and exploiting structural knowledge from CNF formulas. In: Van Hentenryck, P. (ed.) CP 2002. LNCS, vol. 2470, pp. 185–199. Springer, Heidelberg (2002)

    Chapter  Google Scholar 

  8. Heule, M., van Maaren, H.: Aligning CNF- and equivalence-reasoning. In: Hoos, H.H., Mitchell, D.G. (eds.) SAT 2004. LNCS, vol. 3542, pp. 145–156. Springer, Heidelberg (2005)

    Chapter  Google Scholar 

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Anbulagan, Slaney, J. (2005). Lookahead Saturation with Restriction for SAT. In: van Beek, P. (eds) Principles and Practice of Constraint Programming - CP 2005. CP 2005. Lecture Notes in Computer Science, vol 3709. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11564751_53

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  • DOI: https://doi.org/10.1007/11564751_53

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-29238-8

  • Online ISBN: 978-3-540-32050-0

  • eBook Packages: Computer ScienceComputer Science (R0)

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