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Validating Static WCET Analysis: A Method and Its Application

Authors Wei-Tsun Sun, Eric Jenn, Hugues Cassé

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Wei-Tsun Sun
  • IRT Saint Exupéry, Toulouse, France
Eric Jenn
  • IRT Saint Exupéry, Toulouse, France
  • Thales AVS, Toulouse, France
Hugues Cassé
  • IRIT, Toulouse, France
  • University of Toulouse, France

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Wei-Tsun Sun, Eric Jenn, and Hugues Cassé. Validating Static WCET Analysis: A Method and Its Application. In 19th International Workshop on Worst-Case Execution Time Analysis (WCET 2019). Open Access Series in Informatics (OASIcs), Volume 72, pp. 6:1-6:10, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2019) https://doi.org/10.4230/OASIcs.WCET.2019.6

Abstract

WCET analysis is a key activity in the development of safety critical real-time systems. Whether upper bounds on WCETs are obtained using static analysis or measurements, the confidence on the compliance of a system with its temporal requirements directly depends on the confidence on these estimations. Static WCET analysis based on abstract interpretation takes benefits from its formal foundations. However, it also strongly depends on the correctness of the underlying models. We hereby show how we have validated the version of the data flow static analyser of OTAWA applied to the AURIX TC275 target processor.

Subject Classification

ACM Subject Classification
  • Computer systems organization → Real-time systems
Keywords
  • validation of WCET tools
  • ISS
  • nML

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