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The paper presents a verification of the IEEE Root Con- tention Protocol as an illustration of a new and innovative approach for the verification of real-time distributed systems. Systems are modeled with basic Gurevich abstract state machines (ASMs), and requirements are expressed in a first order timed logic (FOTL). FOTL is undecid- able, however the protocol we study is in a decidable class of practical interest. Advantages of this framework are twofold: on the one hand, a great expressive power which permits in particular an easy treatment of parameters, on the other hand the modeling task is simplified by an adequate choice of tools.

Automatic Parametric Verification of a Root Contention Protocol Based on Abstract State Machines and First Order Timed Logic