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Journal of Mathematical Sciences

, Volume 126, Issue 3, pp 1205–1209 | Cite as

Hard satisfiable instances for DPLL-type algorithms

  • S. I. Nikolenko
Article

Abstract

We address lower bounds on the time complexity of algorithms solving the propositional satisfiability problem. Namely, we consider two DPLL-type algorithms, enhanced with the unit clause and pure literal heuristics. Exponential lower bounds for solving satisfiability on provably satisfiable formulas are proven. Bibliography: 11 titles.

Keywords

Lower Bound Time Complexity Satisfiability Problem Unit Clause Propositional Satisfiability 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • S. I. Nikolenko

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