Satisfying KBO constraints

  • Authors:
  • Harald Zankl;Aart Middeldorp

  • Affiliations:
  • Institute of Computer Science, University of Innsbruck, Austria;Institute of Computer Science, University of Innsbruck, Austria

  • Venue:
  • RTA'07 Proceedings of the 18th international conference on Term rewriting and applications
  • Year:
  • 2007

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Abstract

This paper presents two new approaches to prove termination of rewrite systems with the Knuth-Bendix order efficiently. The constraints for the weight function and for the precedence are encoded in (pseudo-)propositional logic and the resulting formula is tested for satisfiability. Any satisfying assignment represents a weight function and a precedence such that the induced Knuth-Bendix order orients the rules of the encoded rewrite system from left to right.