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Erschienen in:
2013 | OriginalPaper | Buchkapitel
Formal Verification of a C Value Analysis Based on Abstract Interpretation
verfasst von : Sandrine Blazy, Vincent Laporte, André Maroneze, David Pichardie
Erschienen in: Static Analysis
Verlag: Springer Berlin Heidelberg
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Static analyzers based on abstract interpretation are complex pieces of software implementing delicate algorithms. Even if static analysis techniques are well understood, their implementation on real languages is still error-prone.
This paper presents a formal verification using the Coq proof assistant: a formalization of a value analysis (based on abstract interpretation), and a soundness proof of the value analysis. The formalization relies on generic interfaces. The mechanized proof is facilitated by a translation validation of a Bourdoncle fixpoint iterator.
The work has been integrated into the CompCert verified C-compiler. Our verified analysis directly operates over an intermediate language of the compiler having the same expressiveness as C. The automatic extraction of our value analysis into OCaml yields a program with competitive results, obtained from experiments on a number of benchmarks and comparisons with the Frama-C tool.