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Segura, Clara

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csegura@sip.ucm.es

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Segura

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Clara

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Complutense University of Madrid, Spain
Universidad Complutense de Madrid, Spain

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  • Artículo
    Synthesizing Invariants for Arrays
    Montenegro, Manuel; Nieva, Susana; Peña Marí, Ricardo; Segura, Clara. Actas de las XVI Jornadas de Programación y Lenguajes (PROLE 2016), 2016-09-02.
    Liquid types can be seen as as a computer assisted verification system. Ordinary Hindley-Milner types are qualified by predicates expressing properties. In this way, the programmer may specify the preconditions and postconditions of functions. More importantly, the system infers the types of all the intermediate variables and checks that the verification conditions proving correctness hold. The predicates are currently expressed in a quantifier free decidable logic. Here, we extend Liquid types with quantified predicates of a decidable logic for arrays, propose a concept of an array refinement type, and provide an inference algorithm for this extension. By applying this ideas to several imperative algorithms dealing with arrays, we have been able to infer complex invariants.