Model Checking CTL+ and FCTL is Hard

  • Authors:
  • François Laroussinie;Nicolas Markey;Ph. Schnoebelen

  • Affiliations:
  • -;-;-

  • Venue:
  • FoSSaCS '01 Proceedings of the 4th International Conference on Foundations of Software Science and Computation Structures
  • Year:
  • 2001

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Abstract

Among the branching-time temporal logics used for the specification and verification of systems, CTL+, FCTL and ECTL+ are the most notable logics for which the precise computational complexity of model checking is not known. We answer this longstanding open problem and show that model checking these (and some related) logics is Δ2p-complete.