PA (Process algebra) is the name that has become common use to denote the algebra with a sequential and parallel operator (without communication), plus recursion. PA-processes are a superset of both Basic Parallel Processes (BPP) and context-free processes (BPA). They are a simple model for infinite state concurrent systems. We show that the model checking problem for the branching time temporal logic EF is decidable for PA-processes.
Stichworte:
PA-processes; model checking; process algebras; tableau systems