Uniform Sampling of SAT Solutions for Configurable Systems: Are We There Yet?

Quentin Plazar, Mathieu Acher, Gilles Perrouin, Xavier Devroey, Maxime Cordy

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Résumé

Uniform or near-uniform generation of solutions for large satisfiability formulas is a problem of theoretical and practical interest for the testing community. Recent works proposed two algorithms (namely UniGen and QuickSampler) for reaching a good compromise between execution time and uniformity guarantees, with empirical evidence on SAT benchmarks. In the context of highly-configurable software systems (e.g., Linux), it is unclear whether UniGen and QuickSampler can scale and sample uniform software configurations. In this paper, we perform a thorough experiment on 128 real-world feature models. We find that UniGen is unable to produce SAT solutions out of such feature models. Furthermore, we show that QuickSampler does not generate uniform samples and that some features are either never part of the sample or too frequently present. Finally, using a case study, we characterize the impacts of these results on the ability to find bugs in a configurable system. Overall, our results suggest that we are not there: more research is needed to explore the cost-effectiveness of uniform sampling when testing large configurable systems.

langue originaleAnglais
titreProceedings - 2019 IEEE 12th International Conference on Software Testing, Verification and Validation, ICST 2019
Lieu de publicationXian, China
Pages240-251
Nombre de pages12
ISBN (Electronique)9781728117355
Les DOIs
étatPublié - 1 avr. 2019
Evénement12th IEEE International Conference on Software Testing, Verification and Validation, ICST 2019 - Xi'an, Chine
Durée: 22 avr. 201927 avr. 2019

Série de publications

NomProceedings - 2019 IEEE 12th International Conference on Software Testing, Verification and Validation, ICST 2019

Une conférence

Une conférence12th IEEE International Conference on Software Testing, Verification and Validation, ICST 2019
PaysChine
La villeXi'an
période22/04/1927/04/19

    Empreinte digitale

Contient cette citation

Plazar, Q., Acher, M., Perrouin, G., Devroey, X., & Cordy, M. (2019). Uniform Sampling of SAT Solutions for Configurable Systems: Are We There Yet? Dans Proceedings - 2019 IEEE 12th International Conference on Software Testing, Verification and Validation, ICST 2019 (p. 240-251). [8730148] (Proceedings - 2019 IEEE 12th International Conference on Software Testing, Verification and Validation, ICST 2019). Xian, China. https://doi.org/10.1109/ICST.2019.00032