Checking Deadlock-Freedom of Parametric Component-Based Systems

We propose an automated method for computing inductive invariants applied to check deadlock-freedom for parametric component-based systems. The method generalizes the approach for computing structural trap invariants from bounded to parametric systems with general architectures. It symbolically extracts trap invariants from a monadic interaction formula characterizing the system architecture. The paper presents the theoretical foundations of the method including new results for the first order monadic logic and proves its soundness. It also provides preliminary illustrations on examples.