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arXiv · 2207.10534

Assume, Guarantee or Repair -- A Regular Framework for Non Regular Properties (full version)

Hadar Frenkel·Orna Grumberg·Corina S. Pasareanu·Sarai Sheinvald
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Abstract

We present Assume-Guarantee-Repair (AGR) - a novel framework which verifies that a program satisfies a set of properties and also repairs the program in case the verification fails. We consider communicating programs - these are simple C-like programs, extended with synchronous actions over communication channels. Our method, which consists of a learning-based approach to assume-guarantee reasoning, performs verification and repair simultaneously: in every iteration, AGR either makes another step towards proving that the (current) system satisfies the required properties, or alters the system in a way that brings it closer to satisfying the properties. To handle infinite-state systems we build finite abstractions, for which we check the satisfaction of complex properties that contain first-order constraints, using both syntactic and semantic-aware methods. We implemented AGR and evaluated it on various communication protocols. Our experiments present compact proofs of correctness and quick repairs.

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Hadar Frenkel, Orna Grumberg, Corina S. Pasareanu, Sarai Sheinvald. 2022-07-21. Assume, Guarantee or Repair -- A Regular Framework for Non Regular Properties (full version). https://arxiv.org/abs/2207.10534

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