Rodriguez, Andoni

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IMDEA Software Institute, Spain
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  • Artículo
    A SAT-based Efficient Method for the Synthesis from numerical LTL spefications
    Rodriguez, Andoni; Sánchez, César. Actas de las XXI Jornadas de Programación y Lenguajes (PROLE 2022), 2022-09-05.
    Reactive synthesis is the problem of automatically finding a system that satisfies a temporal logic specification, where the atomic propositions are split into those controlled by the system and those controlled by the environment. In this paper we address the problem of the reactive synthesis of specifications that use numerical variables. We consider an approach that transforms the arithmetic specification into a purely Boolean specification by substituting the arithmetic literals by Boolean variables, and computing an additional Boolean requirement that captures the dependencies between the new variables. The resulting specification can be passed to off-the-self Boolean synthesis tools, and is realizable if and only if the original arithmetic specification is. In this paper, we present a method to compute this equi-realizable Boolean specification based on a nested encoding of the search for such a specification using a SAT-solver (for efficiently encoding the search) and an SMT-solver (for checking the decision power of each player) iteratively.
  • Artículo
    On-the-fly reactive synthesis modulo theories
    Rodriguez, Andoni; Sánchez, César. Actas de las XXII Jornadas sobre Programación y Lenguajes (PROLE 2023), 2023-09-12.
    The Boolean abstraction technique translates (i.e., Booleanizes) an LTL modulo theories specification into an equi-realizable LTL specification. This solves the realizability modulo theories problem. However, synthesis modulo theories is a different problem: the system has to receive valuations in a first-order theory T and output valuations in T . In this work in progress, we address how to meet this need without a pure synthesis method, but solving ”synthesis” on-the-fly by synthetising a Boolean controller from the Booleanized LTL specification and shipping it with a method that provides models in satisfiable instances of existential formulae (e.g., an SMT solver).