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Verifying Safety of Functional Programs with Rosette/Unbound (1704.04558v1)

Published 15 Apr 2017 in cs.SE

Abstract: The goal of unbounded program verification is to discover an inductive invariant that safely over-approximates all possible program behaviors. Functional languages featuring higher order and recursive functions become more popular due to the domain-specific needs of big data analytics, web, and security. We present Rosette/Unbound, the first program verifier for Racket exploiting the automated constrained Horn solver on its backend. One of the key features of Rosette/Unbound is the ability to synchronize recursive computations over the same inputs allowing to verify programs that iterate over unbounded data streams multiple times. Rosette/Unbound is successfully evaluated on a set of non-trivial recursive and higher order functional programs.

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