This paper is concerned with the derivation of infinite schedules for timed automata that are in some sense optimal. To cover a wide class of optimality criteria we start out by introducing an extension of the (priced) timed automata model that includes both costs and rewards as separate modelling features. A precise definition is then given of what constitutes optimal infinite behaviours for this class of models. We subsequently show that the derivation of optimal non-terminating schedules for such double-priced timed automata is computable. This is done by a reduction of the problem to the determination of optimal mean-cycles in finite graphs with weighted edges. This reduction is obtained by introducing the so-called corner-point abstraction, a powerful abstraction technique of which we show that it preserves optimal schedules.
|Title of host publication||Hybrid Systems : Computation and Control ; Proceedings 7th International Workshop HSCC2004, Philadelphia PA, USA, March 25-27, 2004|
|Editors||R. Alur, G.J. Pappas|
|Publication status||Published - 2004|
|Name||Lecture Notes in Computer Science|