How to Tackle Integer Weighted Automata Positivity

  • Authors:
  • Yohan Boichut;Pierre-Cyrille Héam;Olga Kouchnarenko

  • Affiliations:
  • LIFO/University of Orléans,;LSV INRIA/CNRS/ENS Cachan, and INRIA/CASSIS and LIFC/University of Franche-Comté,;INRIA/CASSIS and LIFC/University of Franche-Comté,

  • Venue:
  • RP '09 Proceedings of the 3rd International Workshop on Reachability Problems
  • Year:
  • 2009

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Abstract

This paper is dedicated to candidate abstractions to capture relevant aspects of the integer weighted automata. The expected effect of applying these abstractions is studied to build the deterministic reachability graphs allowing us to semi-decide the positivity problem on these automata. Moreover, the papers reports on the implementations and experimental results, and discusses other encodings.