Efficient emptiness check for timed büchi automata

  • Authors:
  • Frédéric Herbreteau;B. Srivathsan;Igor Walukiewicz

  • Affiliations:
  • LaBRI, (Université de Bordeaux -CNRS);LaBRI, (Université de Bordeaux -CNRS);LaBRI, (Université de Bordeaux -CNRS)

  • Venue:
  • CAV'10 Proceedings of the 22nd international conference on Computer Aided Verification
  • Year:
  • 2010

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Abstract

The Büchi non-emptiness problem for timed automata concerns deciding if a given automaton has an infinite non-Zeno run satisfying the Büchi accepting condition The standard solution to this problem involves adding an auxiliary clock to take care of the non-Zenoness In this paper, we show that this simple transformation may sometimes result in an exponential blowup We propose a method avoiding this blowup.