Control strategies for off-line testing of timed systems

Léo Henry (1) , Thierry Jéron (1) , Nicolas Markey (1)

1 SUMO - SUpervision of large MOdular and distributed systems

Partial observability and controllability are two well-known issues in test-case synthesis for interactive systems. We address the problem of partial control in the synthesis of test cases from timed-automata specifications. Building on the tioco timed testing framework, we extend a previous game interpretation of the test-synthesis problem from the untimed to the timed setting. This extension requires a deep reworking of the models, game interpretation and test-synthesis algorithms. We exhibit strategies of a game that tries to minimize both control losses and distance to the satisfaction of a test purpose, and prove they are winning under some fairness assumptions. This entails that when turning those strategies into test cases, we get properties such as soundness and exhaustiveness of the test synthesis method.

Domaines: Informatique et théorie des jeux [cs.GT]; Système multi-agents [cs.MA]; Théorie et langage formel [cs.FL]; Logique en informatique [cs.LO]

Léo Henry, Thierry Jéron, Nicolas Markey. Control strategies for off-line testing of timed systems. SPIN 2018 - International Symposium on Model Checking Software, Jun 2018, Malaga, Spain. pp.171-189, ⟨10.1007/978-3-319-94111-0_10⟩. ⟨hal-01889225⟩