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Proving Event-B Models with Reusable Generic Lemmas

Lookup NU author(s): Dr Alexei Iliasov, Paulius Stankaitis, Professor Alexander Romanovsky

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Abstract

Event-B is one of more popular notations for model-based, proof-driven specification. It offers a fairly high-level mathematical language based on FOL and ZF set theory and an economical yet expressive modelling notation. Model correctness is established by proving a number of conjectures constructed via a syntactic instantiation of schematic conditions. A significant part of provable conjectures requires proof hints from a user. For larger models this becomes extremely onerous as identical or similar proofs have to be repeated over and over, especially after model refactoring stages. In the paper we discuss an approach to making proofs more generic and thus less fragile and more reusable. The crux of the technique is offering an engineer an opportunity to complete a proof by positing and proving a generic lemma that may be reused in the same or even another project. To assess the technique potential we have developed a plug-in to the Rodin Platform and used it to prove a number of pre-existing Event-B models.


Publication metadata

Author(s): Iliasov A, Stankaitis P, Romanovsky A

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: ICFEM 2016: Formal Methods and Software Engineering

Year of Conference: 2016

Pages: 210-225

Print publication date: 01/01/2016

Online publication date: 15/10/2016

Acceptance date: 02/04/2016

Publisher: Springer International Publishing

URL: https://doi.org/10.1007/978-3-319-47846-3_14

DOI: 10.1007/978-3-319-47846-3_14

Notes: 18th International Conference on Formal Engineering Methods, ICFEM 2016

Library holdings: Search Newcastle University Library for this item

Series Title: Lecture Notes in Computer Science

ISBN: 9783319478456


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