WORST_CASE(Omega(0),?) Initial ITS Start location: l3 0: l0 -> l1 : x^0'=x^post0, (1 <= 0 /\ x^0-x^post0 == 0), cost: 1 1: l1 -> l0 : x^0'=x^post1, x^0-x^post1 == 0, cost: 1 2: l2 -> l0 : x^0'=x^post2, x^0-x^post2 == 0, cost: 1 3: l3 -> l2 : x^0'=x^post3, x^0-x^post3 == 0, cost: 1 Removed rules with unsatisfiable guard Start location: l3 1: l1 -> l0 : x^0'=x^post1, x^0-x^post1 == 0, cost: 1 2: l2 -> l0 : x^0'=x^post2, x^0-x^post2 == 0, cost: 1 3: l3 -> l2 : x^0'=x^post3, x^0-x^post3 == 0, cost: 1 Removed unreachable rules and leafs Start location: l3 Computing asymptotic complexity Proved the following lower bound Complexity: Unknown Cpx degree: ? Solved cost: 0 Rule cost: 0