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arXiv · 1610.07410

From Event-B to Verified C via HLL

Ning Ge·Arnaud Dieumegard·Eric Jenn·Laurent Voisin
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Abstract

This work addresses the correct translation of an Event-B model to C code via an intermediate formal language, HLL. The proof of correctness follows two main steps. First, the final refinement of the Event-B model, including invariants, is translated to HLL. At that point, additional properties (e.g., deadlock-freeness, liveness properties, etc.) are added to the HLL model. The proof of the invariants and additional properties at the HLL level guarantees the correctness of the translation. Second, the C code is automatically generated from the HLL model for most of the system functions and manually for the remaining ones; in this case, the HLL model provides formal contracts to the software developer. An equivalence proof between the C code and the HLL model guarantees the correctness of the code.

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Ning Ge, Arnaud Dieumegard, Eric Jenn, Laurent Voisin. 2016-10-24. From Event-B to Verified C via HLL. https://arxiv.org/abs/1610.07410

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