WORST_CASE(Omega(0),?) Initial ITS Start location: l3 0: l0 -> l1 : x^0'=x^post0, x^0-x^post0 == 0, cost: 1 1: l1 -> l2 : x^0'=x^post1, (-x^0 <= 0 /\ 1-x^10+x^post1 == 0 /\ -x^0+x^10 == 0), cost: 1 2: l2 -> l1 : x^0'=x^post2, x^0-x^post2 == 0, cost: 1 3: l3 -> l0 : x^0'=x^post3, x^0-x^post3 == 0, cost: 1 Applied preprocessing Original rule: l0 -> l1 : x^0'=x^post0, x^0-x^post0 == 0, cost: 1 New rule: l0 -> l1 : TRUE, cost: 1 Applied preprocessing Original rule: l1 -> l2 : x^0'=x^post1, (-x^0 <= 0 /\ 1-x^10+x^post1 == 0 /\ -x^0+x^10 == 0), cost: 1 New rule: l1 -> l2 : x^0'=-1+x^0, x^0 >= 0, cost: 1 Applied preprocessing Original rule: l2 -> l1 : x^0'=x^post2, x^0-x^post2 == 0, cost: 1 New rule: l2 -> l1 : TRUE, cost: 1 Applied preprocessing Original rule: l3 -> l0 : x^0'=x^post3, x^0-x^post3 == 0, cost: 1 New rule: l3 -> l0 : TRUE, cost: 1 Simplified rules Start location: l3 4: l0 -> l1 : TRUE, cost: 1 5: l1 -> l2 : x^0'=-1+x^0, x^0 >= 0, cost: 1 6: l2 -> l1 : TRUE, cost: 1 7: l3 -> l0 : TRUE, cost: 1 Eliminating location l0 by chaining: Applied chaining First rule: l3 -> l0 : TRUE, cost: 1 Second rule: l0 -> l1 : TRUE, cost: 1 New rule: l3 -> l1 : TRUE, cost: 2 Applied deletion Removed the following rules: 4 7 Eliminating location l2 by chaining: Applied chaining First rule: l1 -> l2 : x^0'=-1+x^0, x^0 >= 0, cost: 1 Second rule: l2 -> l1 : TRUE, cost: 1 New rule: l1 -> l1 : x^0'=-1+x^0, x^0 >= 0, cost: 2 Applied deletion Removed the following rules: 5 6 Eliminated locations on linear paths Start location: l3 9: l1 -> l1 : x^0'=-1+x^0, x^0 >= 0, cost: 2 8: l3 -> l1 : TRUE, cost: 2 Applied acceleration Original rule: l1 -> l1 : x^0'=-1+x^0, x^0 >= 0, cost: 2 New rule: l1 -> l1 : x^0'=x^0-n0, (1+x^0-n0 >= 0 /\ n0 >= 0), cost: 2*n0 Applied instantiation Original rule: l1 -> l1 : x^0'=x^0-n0, (1+x^0-n0 >= 0 /\ n0 >= 0), cost: 2*n0 New rule: l1 -> l1 : x^0'=-1, (0 >= 0 /\ 1+x^0 >= 0), cost: 2+2*x^0 Applied simplification Original rule: l1 -> l1 : x^0'=-1, (0 >= 0 /\ 1+x^0 >= 0), cost: 2+2*x^0 New rule: l1 -> l1 : x^0'=-1, 1+x^0 >= 0, cost: 2+2*x^0 Applied deletion Removed the following rules: 9 Accelerated simple loops Start location: l3 11: l1 -> l1 : x^0'=-1, 1+x^0 >= 0, cost: 2+2*x^0 8: l3 -> l1 : TRUE, cost: 2 Applied chaining First rule: l3 -> l1 : TRUE, cost: 2 Second rule: l1 -> l1 : x^0'=-1, 1+x^0 >= 0, cost: 2+2*x^0 New rule: l3 -> l1 : x^0'=-1, 1+x^0 >= 0, cost: 4+2*x^0 Applied deletion Removed the following rules: 11 Chained accelerated rules with incoming rules Start location: l3 8: l3 -> l1 : TRUE, cost: 2 12: l3 -> l1 : x^0'=-1, 1+x^0 >= 0, cost: 4+2*x^0 Removed unreachable locations and irrelevant leafs Start location: l3 Computing asymptotic complexity Proved the following lower bound Complexity: Unknown Cpx degree: ? Solved cost: 0 Rule cost: 0