An algorithm for the satisfiability problem of formulas in conjunctive normal form

  • Authors:
  • Rainer Schuler

  • Affiliations:
  • Abt. Theoretische Informatik, Universität Ulm, D-89069 Ulm, Germany

  • Venue:
  • Journal of Algorithms
  • Year:
  • 2005

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Abstract

We consider the satisfiability problem on Boolean formulas in conjunctive normal form. We show that a satisfying assignment of a formula can be found in polynomial time with a success probability of 2-n(1-1/(1+logm)), where n and m are the number of variables and the number of clauses of the formula, respectively. If the number of clauses of the formulas is bounded by nc for some constant c, this gives an expected run time of O(p(n).2n(1-1/(1+clogn))) for a polynomial p.