Toggle Main Menu Toggle Search

Open Access padlockePrints

Design of safety critical systems by refinement

Lookup NU author(s): Dr Alexei Iliasov, Arseniy Alekseyev, Dr Danil Sokolov, Dr Andrey Mokhov

Downloads

Full text for this publication is not currently held within this repository. Alternative links are provided below where available.


Abstract

An increasingly large number of safety-critical embedded systems rely on software to prevent and mitigate hazards occurring due to design errors and unexpected interactions of the system with its users and the environment. Implementing a safety instrumented function in the way advocated by the traditional software methods requires an intimate understanding and thorough validation of a complex ecosystem of programming languages, compilers, operating systems and hardware. We propose to consider an alternative where a system designer, for each individual problem, creates in a correct-by-construction manner both the design of a system and its compilation and execution infrastructure. This permits an uninterrupted chain of a formal correctness argument spanning from formalised requirements all the way to the gate-level characterisation of an execution environment. The past decade of advances in verification technology turned the mechanical verification of large-scale models into a reality while the pressure of certification makes the cost of a formally verified development routine increasingly acceptable. The proposal fits the Grand Challenge for Computer Research posed by Hoare in 2003, namely, development of a Verifying Compiler which not only mechanically translates a given program from one language to another but also verifies its correctness according to a formal specification. This allows meeting the most stringent software certification requirements such as SIL 4. We illustrate the vision with a small case-study developed using the Event-B modelling notation and tools. © 2014 EDAA.


Publication metadata

Author(s): Iliasov A, Alekseyev A, Sokolov D, Mokhov A

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Design, Automation and Test in Europe Conference and Exhibition (DATE)

Year of Conference: 2014

Online publication date: 21/04/2014

Acceptance date: 01/01/1900

ISSN: 1558-1101

Publisher: IEEE

URL: https://doi.org/10.7873/DATE2014.100

DOI: 10.7873/DATE2014.100

Library holdings: Search Newcastle University Library for this item

ISBN: 9783981537024


Actions

Find at Newcastle University icon    Link to this publication


Share