processes is an old challenge. In particular, complex parameterized protocols like FLASH
are still out of the scope of state-of-the-art model checkers. In this paper, we describe a new
algorithm, called BRAB, that is able to automatically infer invariants strong enough to prove
a protocol like FLASH. BRAB computes over-approximations of backward reachable states
that are checked to be unreachable in a finite instance of the system. These approximations …