Local Model Checking for Real-Time Systems (Extended Abstract)

نویسندگان

  • Oleg Sokolsky
  • Scott A. Smolka
چکیده

We present a local algorithm for model checking in a real-time extension of the modal mu-calculus. As such, the whole state space of the real-time system under investigation need not be explored, but rather only that portion necessary to determine the truthhood of the logical formula. To the best of our knowledge, this is the rst local algorithm for the veriication of real-time systems to appear in the literature. Like most algorithms dealing with real-time systems, we work with a nite quotient of the inherently innnite state space. For maximal eeciency, we obtain , on-they , a quotient that is as coarse as possible in the following sense: reenements of the quotient are carried out only when necessary to satisfy clock constraints appearing in the logical formula or timed automaton used to represent the system under investigation. In this sense, our data structures are optimal with respect to the given formula and automaton.

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تاریخ انتشار 1995