Falsification of LTL Safety Properties in Hybrid Systems

  • Authors:
  • Erion Plaku;Lydia E. Kavraki;Moshe Y. Vardi

  • Affiliations:
  • Dept. of Computer Science, Rice University, Houston, TX 77005;Dept. of Computer Science, Rice University, Houston, TX 77005;Dept. of Computer Science, Rice University, Houston, TX 77005

  • Venue:
  • TACAS '09 Proceedings of the 15th International Conference on Tools and Algorithms for the Construction and Analysis of Systems: Held as Part of the Joint European Conferences on Theory and Practice of Software, ETAPS 2009,
  • Year:
  • 2009

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Abstract

This paper develops a novel computational method for the falsification of safety properties specified by syntactically safe linear temporal logic (LTL) formulas *** for hybrid systems with general nonlinear dynamics and input controls. The method is based on an effective combination of robot motion planning and model checking. Experiments on a hybrid robotic system benchmark with nonlinear dynamics show significant speedup over related work. The experiments also indicate significant speedup when using minimized DFA instead of non-minimized NFA, as obtained by standard tools, for representing the violating prefixes of *** .