Culling predicates for the Verification of Real-Time Models

We present an algorithm that generates invariants for real-time models. The algorithm, further, prunes the model by first detecting, and then removing idle discrete transitions (transitions which can never be traversed). We next demonstrate how the generated invariants can be used to create a finite-state abstraction for the original model. To this end, we enhance the idea of predicate abstraction through fully incorporating locations of the concrete timed automata model in the abstraction phase