Real-time MTL with durations as SMT with applications to schedulability analysis

This paper introduces a synthesis procedure for the satisfiability problem of RMTL-D formulas as SAT solving modulo theories. RMTL-D is a real-time version of metric temporal logic (MTL) extended by a duration quantifier allowing to measure time durations. For any given formula, a SAT instance modul...

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Detalhes bibliográficos
Autor principal: Pedro, André de Matos (author)
Outros Autores: Leucker, Martin (author), Pereira, David (author), Pinto, Jorge Sousa (author)
Formato: conferencePaper
Idioma:eng
Publicado em: 2020
Assuntos:
Texto completo:http://hdl.handle.net/1822/68771
País:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/68771
Descrição
Resumo:This paper introduces a synthesis procedure for the satisfiability problem of RMTL-D formulas as SAT solving modulo theories. RMTL-D is a real-time version of metric temporal logic (MTL) extended by a duration quantifier allowing to measure time durations. For any given formula, a SAT instance modulo the theory of arrays, uninterpreted functions with equality and non-linear real-arithmetic is synthesized and may then be further investigated using appropriate SMT solvers. We show the benefits of using RMTL-D with the given SMT encoding on a diversified set of examples that include in particular its application in the area of schedulability analysis. Therefore, we introduce a simple language for formalizing schedulability problems and show how to formulate timing constraints as RMTL-D formulas. Our practical evaluation based on our synthesis and Z3 as back-end SMT solver also shows the feasibility of the overall approach.