On the Verification of Broadcast Protocols

  • Authors:
  • Javier Esparza;Alain Finkel;Richard Mayr

  • Affiliations:
  • -;-;-

  • Venue:
  • LICS '99 Proceedings of the 14th Annual IEEE Symposium on Logic in Computer Science
  • Year:
  • 1999

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Abstract

We analyze the model-checking problems for safety and liveness properties in parameterized broadcast protocols, a model introduced in [Emerson,Namjoshi, LICS'98]. We show that the procedure suggested in [Emerson,Namjoshi, LICS'98] for safety properties may not terminate, whereas termination is guaranteed for the procedure of [Abdulla, Cerans, Jonnson, Tsay, LICS'96] based on upward closed sets. We show that the model-checking problem for liveness properties is undecidable. In fact, even the problem of deciding if a broadcast protocol may exhibit an infinite behavior is undecidable.