Abstract

This project aims to demonstrate that it is practical, using existing theorem proving technology, to formally verify industrially significant floating point algorithms and their implementations. Models of such algorithms will be mechanically verified with the hol theorem proving system against precise specifications, often based on real numbers. Industry is sceptical about the value of formal verification. It is hoped that our studies will help convince manufacturers that the potential benefits far outweigh the costs. This could have a tremendous impact on the industrial uptake of `formal methods'. B Scientific/Technological Relevance In most circumstances, even intelligent testing and simulation can still leave considerable doubts as to the correctness of computer systems. This makes formal verification appealing. There are well-rehearsed arguments over the value of verification for safety-critical systems, such as fly-by-wire aircraft, antilock braking systems in cars, radiothera...

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