Exploration of the scalability of LocFaults approach for error localization with While-loops programs

Mohammed Bekkouche 1, *
* Auteur correspondant
Abstract : A model checker can produce a trace of counterexample, for an erroneous program, which is often long and difficult to understand. In general, the part about the loops is the largest among the instructions in this trace. This makes the location of errors in loops critical, to analyze errors in the overall program. In this paper, we explore the scala-bility capabilities of LocFaults, our error localization approach exploiting paths of CFG(Control Flow Graph) from a counterexample to calculate the MCDs (Minimal Correction Deviations), and MCSs (Minimal Correction Subsets) from each found MCD. We present the times of our approach on programs with While-loops unfolded b times, and a number of deviated conditions ranging from 0 to n. Our preliminary results show that the times of our approach, constraint-based and flow-driven, are better compared to BugAssist which is based on SAT and transforms the entire program to a Boolean formula, and further the information provided by LocFaults is more expressive for the user.
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Rapport
[Research Report] University of Nice-Sophia Antipolis, I3S/CNRS BP 121, 06903 Sophia Antipolis Cedex, France. 2015
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https://hal.archives-ouvertes.fr/hal-01132781
Contributeur : Mohammed Bekkouche <>
Soumis le : mercredi 18 mars 2015 - 11:48:39
Dernière modification le : vendredi 16 septembre 2016 - 15:06:28
Document(s) archivé(s) le : lundi 22 juin 2015 - 07:04:04

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  • HAL Id : hal-01132781, version 1
  • ARXIV : 1503.05508

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Mohammed Bekkouche. Exploration of the scalability of LocFaults approach for error localization with While-loops programs. [Research Report] University of Nice-Sophia Antipolis, I3S/CNRS BP 121, 06903 Sophia Antipolis Cedex, France. 2015. <hal-01132781>

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