Runtime Enforcement of Regular Timed Properties by Suppressing and Delaying Events

Yliès Falcone 1, * Thierry Jéron 2 Hervé Marchand 2 Srinivas Pinisetty 3
* Corresponding author
1 CORSE - Compiler Optimization and Run-time Systems
Inria Grenoble - Rhône-Alpes, LIG - Laboratoire d'Informatique de Grenoble
2 SUMO - SUpervision of large MOdular and distributed systems
Inria Rennes – Bretagne Atlantique , IRISA-D4 - LANGAGE ET GÉNIE LOGICIEL
Abstract : Runtime enforcement is a verification/validation technique aiming at correcting possibly incorrect executions of a system of interest. In this paper, we consider enforcement monitoring for systems where the physical time elapsing between actions matters. Executions are thus modelled as timed words (i.e., sequences of actions with dates). We consider runtime enforcement for timed specifications modelled as timed automata. Our enforcement mechanisms have the power of both delaying events to match timing constraints, and suppressing events when no delaying is appropriate, thus possibly allowing for longer executions. To ease their design and their correctness-proof, enforcement mechanisms are described at several levels: enforcement functions that specify the input-output behaviour in terms of transformations of timed words, constraints that should be satisfied by such functions, enforcement monitors that describe the operational behaviour of enforcement functions, and enforcement algorithms that describe the implementation of enforcement monitors. The feasibility of enforcement monitoring for timed properties is validated by prototyping the synthesis of enforcement monitors from timed automata.
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Yliès Falcone, Thierry Jéron, Hervé Marchand, Srinivas Pinisetty. Runtime Enforcement of Regular Timed Properties by Suppressing and Delaying Events. Science of Computer Programming, Elsevier, 2016, 123, pp.2-41. ⟨10.1016/j.scico.2016.02.008⟩. ⟨hal-01281727⟩

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