Efficient Data Structure for Fully Symbolic Verification of Real-Time Software Systems

  • Authors:
  • Farn Wang

  • Affiliations:
  • -

  • Venue:
  • TACAS '00 Proceedings of the 6th International Conference on Tools and Algorithms for Construction and Analysis of Systems: Held as Part of the European Joint Conferences on the Theory and Practice of Software, ETAPS 2000
  • Year:
  • 2000

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Abstract

A new data-structure called RED (Re gion-Encoding Diagram) for the fully symbolic model-checking of real-time software systems is proposed. RED is a BDD-like data-structure for the encoding of regions. Unlike DBM which records differences between pairs of clock readings, RED only uses one auxiliary binary variable for each clock. Thus the number of variables used in RED is always linear to the number of clocks declared in the input system description. Experiment has been carried out to compare RED with previous technologies.