New upper bound for the #3-SAT problem

  • Authors:
  • Konstantin Kutzkov

  • Affiliations:
  • Department of Computer Science, University of Munich, Oettingenstr. 67, München, Germany

  • Venue:
  • Information Processing Letters
  • Year:
  • 2008

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Abstract

We present a new deterministic algorithm for the #3-SAT problem, based on the DPLL strategy. It uses a new approach for counting models of instances with low density. This allows us to assume the adding of more 2-clauses than in previous algorithms. The algorithm achieves a running time of O(1.6423^n) in the worst case which improves the current best bound of O(1.6737^n) by Dahllof et al.