Stochastic model checking with stochastic comparison

  • Authors:
  • Nihal Pekergin;Sana Younès

  • Affiliations:
  • PRiSM, Université de Versailles Saint-Quentin en Yvelines, Versailles, France;PRiSM, Université de Versailles Saint-Quentin en Yvelines, Versailles, France

  • Venue:
  • EPEW'05/WS-FM'05 Proceedings of the 2005 international conference on European Performance Engineering, and Web Services and Formal Methods, international conference on Formal Techniques for Computer Systems and Business Processes
  • Year:
  • 2005

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Abstract

This paper presents a stochastic comparison based method to check state formulas defined over Discrete Time Markov Reward Models. High-level specifications like stochastic Petri nets, Stochastic Automata Networks, Stochastic Process Algebras have been developed to construct large Markov models. However computation of transient and steady-state distributions are limited to relatively small parameter sizes because of the state space explosion problem. Stochastic comparison technique by which both transient and steady-state bounding distributions can be computed, lets to overcome this problem. On the other hand, bounding techniques are useful in Model Checking, since we check generally formulas to see if they meet some bounds or not. We propose to apply stochastic bounding algorithms to construct bounding distributions and to check formulas through these distributions.