Deciding Global Partial-Order Properties

  • Authors:
  • Rajeev Alur;Ken McMillan;Doron Peled

  • Affiliations:
  • Department of Computer and Information Science, University of Pennsylvania;Cadence Berkeley Labs, USA;Department of Computer Science, University of Warwick, Warwick

  • Venue:
  • Formal Methods in System Design
  • Year:
  • 2005

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Abstract

Model checking of asynchronous systems is traditionally based on the interleaving model, where an execution is modeled by a total order between atomic events. Recently, the use of partial order semantics, representing the causal order between events, is becoming popular. This paper considers the model checking problem for partial-order temporal logics. Solutions to this problem exist for partial order logics over local states. For the more general global logics that are interpreted over global states, only undecidability results have been proved. In this paper, we present a decision procedure for a partial order temporal logic over global states. We also sharpen the undecidability results by showing that a single until operator is sufficient for undecidability.