WORST_CASE(Omega(0),?) Initial ITS Start location: l2 0: l0 -> l1 : a44^0'=a44^post0, a22^0'=a22^post0, 0 == 0, cost: 1 1: l2 -> l0 : a44^0'=a44^post1, a22^0'=a22^post1, (a22^0-a22^post1 == 0 /\ a44^0-a44^post1 == 0), cost: 1 Removed unreachable rules and leafs Start location: l2 Computing asymptotic complexity Proved the following lower bound Complexity: Unknown Cpx degree: ? Solved cost: 0 Rule cost: 0