Efficient robust monitoring for STL

  • Authors:
  • Alexandre Donzé;Thomas Ferrère;Oded Maler

  • Affiliations:
  • EECS Dept., University of California, Berkeley;Verimag, CNRS and Grenoble University, France;Verimag, CNRS and Grenoble University, France

  • Venue:
  • CAV'13 Proceedings of the 25th international conference on Computer Aided Verification
  • Year:
  • 2013

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Abstract

Monitoring transient behaviors of real-time systems plays an important role in model-based systems design. Signal Temporal Logic (STL) emerges as a convenient and powerful formalism for continuous and hybrid systems. This paper presents an efficient algorithm for computing the robustness degree in which a piecewise-continuous signal satisfies or violates an STL formula. The algorithm, by leveraging state-of-the-art streaming algorithms from Signal Processing, is linear in the size of the signal and its implementation in the Breach tool is shown to outperform alternative implementations.