A Framework to Quantify the Overestimations of Static WCET Analysis

Abstract : To reduce complexity while computing an upper bound on the worst-case execution time, static WCET analysis performs over-approximations. This feeds the general feeling that static WCET estimations can be far above the real WCET. This feeling is strengthened when these estimations are compared to measured execution times: generally, it is very unlikely to capture the worstcase from observations, then the difference between the highest watermark and the proven WCET upper bound might be considerable. In this paper, we introduce a framework to quantify the possible overestimation on WCET upper bounds obtained by static analysis. The objective is to derive a lower bound on the WCET to complement the upper bound.
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  • HAL Id : hal-01371787, version 1
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Hugues Cassé, Haluk Ozaktas, Christine Rochange. A Framework to Quantify the Overestimations of Static WCET Analysis. 15th International Workshop on Worst-Case Execution Time Analysis (WCET 2015), Jul 2015, Lund, Sweden. pp. 1-10. ⟨hal-01371787⟩

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