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A generic software safety document generator. (English) Zbl 1108.68380

Rattray, Charles (ed.) et al., Algebraic methodology and software technology. 10th international conference, AMAST 2004, Stirling, Scotland, UK, July 12–16, 2004. Proceedings. Berlin: Springer (ISBN 3-540-22381-9/pbk). Lecture Notes in Computer Science 3116, 102-116 (2004).
Summary: Formal certification is based on the idea that a mathematical proof of some property of a piece of software can be regarded as a certificate of correctness which, in principle, can be subjected to external scrutiny. In practice, however, proofs themselves are unlikely to be of much interest to engineers. Nevertheless, it is possible to use the information obtained from a mathematical analysis of software to produce a detailed textual justification of correctness. In this paper, we describe an approach to generating textual explanations from automatically generated proofs of program safety, where the proofs are of compliance with an explicit safety policy that can be varied. Key to this is tracing proof obligations back to the program, and we describe a tool which implements this to certify code auto-generated by AutoBayes and AutoFilter, program synthesis systems under development at the NASA Ames Research Center. Our approach is a step towards combining formal certification with traditional certification methods.
For the entire collection see [Zbl 1053.68007].

MSC:

68N30 Mathematical aspects of software engineering (specification, verification, metrics, requirements, etc.)
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