Composition methods for constructing characteristic formulas for dense-time models

  • Authors:
  • E. N. Bozhenkova

  • Affiliations:
  • A. P. Ershov Institute of Informatics Systems, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia 630090

  • Venue:
  • Programming and Computing Software
  • Year:
  • 2012

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Abstract

In verification of complex computing systems, the concept of testing equivalence is frequently used. One of the ways to solve the problem of recognizing timed testing equivalences in the framework of the model of timed event structures with internal actions is to reduce it to formula verification on a model (model-checking). To this end, logical formulas characterizing timed event structure up to test pre-orders are constructed. In the paper, composition methods for characteristic formulas that do not rely on region and class graphs are considered, which simplifies construction of the characteristic formulas.