Analysis of Real-Time Systems with CTL Model Checkers

This paper presents a new method for model checking dense real-time systems. The dense real-time system is modeled by a timed automaton and the property is specified with the temporal logic TCTL. Specification of the TCTL property is reduced to CTL and its temporal constraints are captured in a new timed automaton. This timed automaton will be composed with the original timed automaton specifying the real-time system under analysis. Then, the product timed au- tomaton will be abstracted using partition refinement of state space based on strong bi-simulation. The result is an untimed automaton modulo the TCTL property which represents an equivalent finite state system to be model checked using existing CTL model checking tools.