Scaletta, Marco ; Hähnle, Reiner ; Steinhöfel, Dominic ; Bubel, Richard
eds.: Tilevich, Eli ; Roover, Coen De (2021)
Delta-based verification of software product families.
20th ACM SIGPLAN International Conference on Generative Programming: Concepts and Experiences. Chicago, USA (17.10.2021-18.10.2021)
doi: 10.1145/3486609.3487200
Conference or Workshop Item, Bibliographie
Abstract
The quest for feature- and family-oriented deductive verification of software product lines resulted in several proposals. In this paper we look at delta-oriented modeling of product lines and combine two new ideas: first, we extend Hähnle & Schaefer’s delta-oriented version of Liskov’s substitution principle for behavioral subtyping to work also for overridden behavior in benign cases. For this to succeed, programs need to be in a certain normal form. The required normal form turns out to be achievable in many cases by a set of program transformations, whose correctness is ensured by the recent technique of abstract execution. This is a generalization of symbolic execution that permits reasoning about abstract code elements. It is needed, because code deltas contain partially unknown code contexts in terms of “original” calls. Second, we devise a modular verification procedure for deltas based on abstract execution, representing deltas as abstract programs calling into unknown contexts. The result is a “delta-based” verification approach, where each modification of a method in a code delta is verified in isolation, but which overcomes the strict limitations of behavioral subtyping and works for many practical programs. The latter claim is substantiated with case studies and benchmarks.
Item Type: | Conference or Workshop Item |
---|---|
Erschienen: | 2021 |
Editors: | Tilevich, Eli ; Roover, Coen De |
Creators: | Scaletta, Marco ; Hähnle, Reiner ; Steinhöfel, Dominic ; Bubel, Richard |
Type of entry: | Bibliographie |
Title: | Delta-based verification of software product families |
Language: | English |
Date: | 22 November 2021 |
Publisher: | ACM |
Book Title: | GPCE 2021: Proceedings of the 20th ACM SIGPLAN International Conference on Generative Programming: Concepts and Experiences |
Event Title: | 20th ACM SIGPLAN International Conference on Generative Programming: Concepts and Experiences |
Event Location: | Chicago, USA |
Event Dates: | 17.10.2021-18.10.2021 |
DOI: | 10.1145/3486609.3487200 |
Abstract: | The quest for feature- and family-oriented deductive verification of software product lines resulted in several proposals. In this paper we look at delta-oriented modeling of product lines and combine two new ideas: first, we extend Hähnle & Schaefer’s delta-oriented version of Liskov’s substitution principle for behavioral subtyping to work also for overridden behavior in benign cases. For this to succeed, programs need to be in a certain normal form. The required normal form turns out to be achievable in many cases by a set of program transformations, whose correctness is ensured by the recent technique of abstract execution. This is a generalization of symbolic execution that permits reasoning about abstract code elements. It is needed, because code deltas contain partially unknown code contexts in terms of “original” calls. Second, we devise a modular verification procedure for deltas based on abstract execution, representing deltas as abstract programs calling into unknown contexts. The result is a “delta-based” verification approach, where each modification of a method in a code delta is verified in isolation, but which overcomes the strict limitations of behavioral subtyping and works for many practical programs. The latter claim is substantiated with case studies and benchmarks. |
Divisions: | 20 Department of Computer Science 20 Department of Computer Science > Software Engineering |
Date Deposited: | 20 Jul 2022 07:02 |
Last Modified: | 12 Dec 2022 14:33 |
PPN: | 502515341 |
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