Abstract
In this paper, we study the structure of underlying automata based constructions for solving the LTL realizability and synthesis problem. We show how to reduce the LTL realizability problem to a game with an observer that checks that the game visits a bounded number of times accepting states of a universal co-Büchi word automaton. We show that such an observer can be made deterministic and that this deterministic observer has a nice structure which can be exploited by an incremental algorithm that manipulates antichains of game positions. We have implemented this new algorithm and our first results are very encouraging.
Work supported by the projects: (i) Quasimodo: “Quantitative System Properties in Model-Driven-Design of Embedded Systems”, http://www.quasimodo.aau.dk, (ii) Gasics: “Games for Analysis and Synthesis of Interactive Computational Systems”, http://www.ulb.ac.be/di/gasics/, and (iii) Moves: “Fundamental Issues in Modelling, Verification and Evolution of Software”, http://moves.ulb.ac.be, a PAI program funded by the Federal Belgian Government.
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Filiot, E., Jin, N., Raskin, JF. (2009). An Antichain Algorithm for LTL Realizability. In: Bouajjani, A., Maler, O. (eds) Computer Aided Verification. CAV 2009. Lecture Notes in Computer Science, vol 5643. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-02658-4_22
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DOI: https://doi.org/10.1007/978-3-642-02658-4_22
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