Correctness-by-construction and post-hoc verification : a marriage of convenience?

B.W. Watson, D.G. Kourie, I. Schaefer, L.G.W.A. Cleophas

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    6 Citations (Scopus)
    3 Downloads (Pure)


    Correctness-by-construction (CbC), traditionally based on weakest precondition semantics, and post-hoc verification (PhV) aspire to ensure functional correctness. We argue for a lightweight approach to CbC where lack of formal rigour increases productivity. In order to mitigate the risk of accidentally introducing errors during program construction, we propose to complement lightweight CbC with PhV. We introduce lightweight CbC by example and discuss strength and weaknesses of CbC and PhV and their combination, both conceptually and using a case study.
    Original languageEnglish
    Title of host publicationISoLA 2016: Leveraging Applications of Formal Methods, Verification and Validation : Foundational Techniques
    Subtitle of host publication7th International Symposium, ISoLA 2016, Imperial, Corfu, Greece, October 10–14, 2016, Proceedings, Part I
    EditorsT. Margaria, B. Steffen
    Place of PublicationDordrecht
    ISBN (Electronic)978-3-319-47166-2
    ISBN (Print)978-3-319-47165-5
    Publication statusPublished - 5 Oct 2016

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