Safe Realizability of High-Level Message Sequence Charts

  • Authors:
  • Markus Lohrey

  • Affiliations:
  • -

  • Venue:
  • CONCUR '02 Proceedings of the 13th International Conference on Concurrency Theory
  • Year:
  • 2002

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Abstract

We study the notion of safe realizability for high-level message sequence charts (HMSCs), which was introduced in [2]. We prove that safe realizability is EXPSPACE-complete for bounded HMSCs but undecidable for the class of all HMSCs. This solves two open problems from [2]. Moreover we prove that safe realizability is also EXPSPACE complete for the larger class of transition-connected HMSCs.