OK, that's clearer. Thank you. Certainly not nit-picking, but it's worth pointing out in passing that computing the state to check qll the interleavings --- alb

OK, that's clearer. Thank you. Certainly not nit-picking, but it's worth pointing out in passing that computing the state to check qll the interleavings --- albeit not actually running each path through the reachable states but looking for safety or livness violations --- requires real work being super exponential in the worst case.