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Derivation of algorithmic control structures in Event-B refinement

Dalvandi, Mohammadsadegh, Butler, Michael and Rezazadeh, Abdolbaghi (2017) Derivation of algorithmic control structures in Event-B refinement Science of Computer Programming

Record type: Article


The Event-B formalism allows program specifications to be modelled at an abstract level and refined towards a concrete model. However, Event-B lacks explicit control flow structure and ordering is implicitly encoded in event guards. This makes it difficult to identify and apply rules for transformation of Event-B models to sequential code. This paper introduces a scheduling language to support the incremental derivation of algorithmic control structure for events as part of the Event-B refinement process. We provide intermediate control structures for non-deterministic iteration and choice that ease the transition from abstract specifications to sequential implementations. We present rules for transforming algorithmic structures to more concrete refinements. We illustrate our approach by applying our method to the Schorr-Waite graph marking algorithm.

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More information

Submitted date: 27 May 2017
Accepted/In Press date: 31 May 2017
e-pub ahead of print date: 8 July 2017
Keywords: Refinement, Program derivation, Event-B, Program verification
Organisations: Electronics & Computer Science, Electronic & Software Systems


Local EPrints ID: 412000
PURE UUID: ff52a09c-efe0-49f9-9dcb-28dc89581df6
ORCID for Michael Butler: ORCID iD

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Date deposited: 04 Jul 2017 16:31
Last modified: 08 Aug 2017 05:40

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Author: Mohammadsadegh Dalvandi
Author: Michael Butler ORCID iD
Author: Abdolbaghi Rezazadeh

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