WORST_CASE(Omega(0),?) Initial ITS Start location: l4 0: l0 -> l1 : Result_4^0'=Result_4^post0, x_5^0'=x_5^post0, (x_5^0-x_5^post0 == 0 /\ Result_4^0-Result_4^post0 == 0), cost: 1 1: l1 -> l2 : Result_4^0'=Result_4^post1, x_5^0'=x_5^post1, (1+x_5^post1-x_5^0 == 0 /\ -x_5^0 <= 0 /\ Result_4^0-Result_4^post1 == 0), cost: 1 3: l1 -> l3 : Result_4^0'=Result_4^post3, x_5^0'=x_5^post3, (0 == 0 /\ 1+x_5^0 <= 0 /\ x_5^0-x_5^post3 == 0), cost: 1 2: l2 -> l1 : Result_4^0'=Result_4^post2, x_5^0'=x_5^post2, (-x_5^post2+x_5^0 == 0 /\ Result_4^0-Result_4^post2 == 0), cost: 1 4: l4 -> l0 : Result_4^0'=Result_4^post4, x_5^0'=x_5^post4, (Result_4^0-Result_4^post4 == 0 /\ -x_5^post4+x_5^0 == 0), cost: 1 Removed unreachable rules and leafs Start location: l4 0: l0 -> l1 : Result_4^0'=Result_4^post0, x_5^0'=x_5^post0, (x_5^0-x_5^post0 == 0 /\ Result_4^0-Result_4^post0 == 0), cost: 1 1: l1 -> l2 : Result_4^0'=Result_4^post1, x_5^0'=x_5^post1, (1+x_5^post1-x_5^0 == 0 /\ -x_5^0 <= 0 /\ Result_4^0-Result_4^post1 == 0), cost: 1 2: l2 -> l1 : Result_4^0'=Result_4^post2, x_5^0'=x_5^post2, (-x_5^post2+x_5^0 == 0 /\ Result_4^0-Result_4^post2 == 0), cost: 1 4: l4 -> l0 : Result_4^0'=Result_4^post4, x_5^0'=x_5^post4, (Result_4^0-Result_4^post4 == 0 /\ -x_5^post4+x_5^0 == 0), cost: 1 Applied preprocessing Original rule: l0 -> l1 : Result_4^0'=Result_4^post0, x_5^0'=x_5^post0, (x_5^0-x_5^post0 == 0 /\ Result_4^0-Result_4^post0 == 0), cost: 1 New rule: l0 -> l1 : TRUE, cost: 1 Applied preprocessing Original rule: l1 -> l2 : Result_4^0'=Result_4^post1, x_5^0'=x_5^post1, (1+x_5^post1-x_5^0 == 0 /\ -x_5^0 <= 0 /\ Result_4^0-Result_4^post1 == 0), cost: 1 New rule: l1 -> l2 : x_5^0'=-1+x_5^0, x_5^0 >= 0, cost: 1 Applied preprocessing Original rule: l2 -> l1 : Result_4^0'=Result_4^post2, x_5^0'=x_5^post2, (-x_5^post2+x_5^0 == 0 /\ Result_4^0-Result_4^post2 == 0), cost: 1 New rule: l2 -> l1 : TRUE, cost: 1 Applied preprocessing Original rule: l4 -> l0 : Result_4^0'=Result_4^post4, x_5^0'=x_5^post4, (Result_4^0-Result_4^post4 == 0 /\ -x_5^post4+x_5^0 == 0), cost: 1 New rule: l4 -> l0 : TRUE, cost: 1 Simplified rules Start location: l4 5: l0 -> l1 : TRUE, cost: 1 6: l1 -> l2 : x_5^0'=-1+x_5^0, x_5^0 >= 0, cost: 1 7: l2 -> l1 : TRUE, cost: 1 8: l4 -> l0 : TRUE, cost: 1 Eliminating location l0 by chaining: Applied chaining First rule: l4 -> l0 : TRUE, cost: 1 Second rule: l0 -> l1 : TRUE, cost: 1 New rule: l4 -> l1 : TRUE, cost: 2 Applied deletion Removed the following rules: 5 8 Eliminating location l2 by chaining: Applied chaining First rule: l1 -> l2 : x_5^0'=-1+x_5^0, x_5^0 >= 0, cost: 1 Second rule: l2 -> l1 : TRUE, cost: 1 New rule: l1 -> l1 : x_5^0'=-1+x_5^0, x_5^0 >= 0, cost: 2 Applied deletion Removed the following rules: 6 7 Eliminated locations on linear paths Start location: l4 10: l1 -> l1 : x_5^0'=-1+x_5^0, x_5^0 >= 0, cost: 2 9: l4 -> l1 : TRUE, cost: 2 Applied acceleration Original rule: l1 -> l1 : x_5^0'=-1+x_5^0, x_5^0 >= 0, cost: 2 New rule: l1 -> l1 : x_5^0'=-n0+x_5^0, (n0 >= 0 /\ 1-n0+x_5^0 >= 0), cost: 2*n0 Applied instantiation Original rule: l1 -> l1 : x_5^0'=-n0+x_5^0, (n0 >= 0 /\ 1-n0+x_5^0 >= 0), cost: 2*n0 New rule: l1 -> l1 : x_5^0'=-1, (0 >= 0 /\ 1+x_5^0 >= 0), cost: 2+2*x_5^0 Applied simplification Original rule: l1 -> l1 : x_5^0'=-1, (0 >= 0 /\ 1+x_5^0 >= 0), cost: 2+2*x_5^0 New rule: l1 -> l1 : x_5^0'=-1, 1+x_5^0 >= 0, cost: 2+2*x_5^0 Applied deletion Removed the following rules: 10 Accelerated simple loops Start location: l4 12: l1 -> l1 : x_5^0'=-1, 1+x_5^0 >= 0, cost: 2+2*x_5^0 9: l4 -> l1 : TRUE, cost: 2 Applied chaining First rule: l4 -> l1 : TRUE, cost: 2 Second rule: l1 -> l1 : x_5^0'=-1, 1+x_5^0 >= 0, cost: 2+2*x_5^0 New rule: l4 -> l1 : x_5^0'=-1, 1+x_5^0 >= 0, cost: 4+2*x_5^0 Applied deletion Removed the following rules: 12 Chained accelerated rules with incoming rules Start location: l4 9: l4 -> l1 : TRUE, cost: 2 13: l4 -> l1 : x_5^0'=-1, 1+x_5^0 >= 0, cost: 4+2*x_5^0 Removed unreachable locations and irrelevant leafs Start location: l4 Computing asymptotic complexity Proved the following lower bound Complexity: Unknown Cpx degree: ? Solved cost: 0 Rule cost: 0