WORST_CASE(Omega(0),?) Initial ITS Start location: l4 0: l0 -> l1 : __const_10^0'=__const_10^post0, tmp___08^0'=tmp___08^post0, length4^0'=length4^post0, tmp^0'=tmp^post0, i5^0'=i5^post0, s^0'=s^post0, (-length4^post0+length4^0 == 0 /\ length4^0-i5^0 <= 0 /\ -s^post0+s^0 == 0 /\ __const_10^0-__const_10^post0 == 0 /\ tmp___08^0-tmp___08^post0 == 0 /\ i5^0-i5^post0 == 0 /\ -tmp^post0+tmp^0 == 0), cost: 1 1: l0 -> l2 : __const_10^0'=__const_10^post1, tmp___08^0'=tmp___08^post1, length4^0'=length4^post1, tmp^0'=tmp^post1, i5^0'=i5^post1, s^0'=s^post1, (0 == 0 /\ __const_10^0-__const_10^post1 == 0 /\ -s^post1+s^0 == 0 /\ 1-length4^0+i5^0 <= 0 /\ -1-i5^0+i5^post1 == 0 /\ tmp^0-tmp^post1 == 0 /\ -length4^post1+length4^0 == 0), cost: 1 2: l2 -> l0 : __const_10^0'=__const_10^post2, tmp___08^0'=tmp___08^post2, length4^0'=length4^post2, tmp^0'=tmp^post2, i5^0'=i5^post2, s^0'=s^post2, (-tmp^post2+tmp^0 == 0 /\ __const_10^0-__const_10^post2 == 0 /\ s^0-s^post2 == 0 /\ tmp___08^0-tmp___08^post2 == 0 /\ i5^0-i5^post2 == 0 /\ length4^0-length4^post2 == 0), cost: 1 3: l3 -> l2 : __const_10^0'=__const_10^post3, tmp___08^0'=tmp___08^post3, length4^0'=length4^post3, tmp^0'=tmp^post3, i5^0'=i5^post3, s^0'=s^post3, (0 == 0 /\ -__const_10^0+length4^post3 == 0 /\ tmp___08^0-tmp___08^post3 == 0 /\ i5^post3 == 0 /\ __const_10^0-__const_10^post3 == 0 /\ -tmp^post3+s^post3 == 0), cost: 1 4: l4 -> l3 : __const_10^0'=__const_10^post4, tmp___08^0'=tmp___08^post4, length4^0'=length4^post4, tmp^0'=tmp^post4, i5^0'=i5^post4, s^0'=s^post4, (__const_10^0-__const_10^post4 == 0 /\ tmp___08^0-tmp___08^post4 == 0 /\ length4^0-length4^post4 == 0 /\ -tmp^post4+tmp^0 == 0 /\ -s^post4+s^0 == 0 /\ -i5^post4+i5^0 == 0), cost: 1 Removed unreachable rules and leafs Start location: l4 1: l0 -> l2 : __const_10^0'=__const_10^post1, tmp___08^0'=tmp___08^post1, length4^0'=length4^post1, tmp^0'=tmp^post1, i5^0'=i5^post1, s^0'=s^post1, (0 == 0 /\ __const_10^0-__const_10^post1 == 0 /\ -s^post1+s^0 == 0 /\ 1-length4^0+i5^0 <= 0 /\ -1-i5^0+i5^post1 == 0 /\ tmp^0-tmp^post1 == 0 /\ -length4^post1+length4^0 == 0), cost: 1 2: l2 -> l0 : __const_10^0'=__const_10^post2, tmp___08^0'=tmp___08^post2, length4^0'=length4^post2, tmp^0'=tmp^post2, i5^0'=i5^post2, s^0'=s^post2, (-tmp^post2+tmp^0 == 0 /\ __const_10^0-__const_10^post2 == 0 /\ s^0-s^post2 == 0 /\ tmp___08^0-tmp___08^post2 == 0 /\ i5^0-i5^post2 == 0 /\ length4^0-length4^post2 == 0), cost: 1 3: l3 -> l2 : __const_10^0'=__const_10^post3, tmp___08^0'=tmp___08^post3, length4^0'=length4^post3, tmp^0'=tmp^post3, i5^0'=i5^post3, s^0'=s^post3, (0 == 0 /\ -__const_10^0+length4^post3 == 0 /\ tmp___08^0-tmp___08^post3 == 0 /\ i5^post3 == 0 /\ __const_10^0-__const_10^post3 == 0 /\ -tmp^post3+s^post3 == 0), cost: 1 4: l4 -> l3 : __const_10^0'=__const_10^post4, tmp___08^0'=tmp___08^post4, length4^0'=length4^post4, tmp^0'=tmp^post4, i5^0'=i5^post4, s^0'=s^post4, (__const_10^0-__const_10^post4 == 0 /\ tmp___08^0-tmp___08^post4 == 0 /\ length4^0-length4^post4 == 0 /\ -tmp^post4+tmp^0 == 0 /\ -s^post4+s^0 == 0 /\ -i5^post4+i5^0 == 0), cost: 1 Applied preprocessing Original rule: l0 -> l2 : __const_10^0'=__const_10^post1, tmp___08^0'=tmp___08^post1, length4^0'=length4^post1, tmp^0'=tmp^post1, i5^0'=i5^post1, s^0'=s^post1, (0 == 0 /\ __const_10^0-__const_10^post1 == 0 /\ -s^post1+s^0 == 0 /\ 1-length4^0+i5^0 <= 0 /\ -1-i5^0+i5^post1 == 0 /\ tmp^0-tmp^post1 == 0 /\ -length4^post1+length4^0 == 0), cost: 1 New rule: l0 -> l2 : tmp___08^0'=tmp___08^post1, i5^0'=1+i5^0, 1-length4^0+i5^0 <= 0, cost: 1 Applied preprocessing Original rule: l2 -> l0 : __const_10^0'=__const_10^post2, tmp___08^0'=tmp___08^post2, length4^0'=length4^post2, tmp^0'=tmp^post2, i5^0'=i5^post2, s^0'=s^post2, (-tmp^post2+tmp^0 == 0 /\ __const_10^0-__const_10^post2 == 0 /\ s^0-s^post2 == 0 /\ tmp___08^0-tmp___08^post2 == 0 /\ i5^0-i5^post2 == 0 /\ length4^0-length4^post2 == 0), cost: 1 New rule: l2 -> l0 : TRUE, cost: 1 Applied preprocessing Original rule: l3 -> l2 : __const_10^0'=__const_10^post3, tmp___08^0'=tmp___08^post3, length4^0'=length4^post3, tmp^0'=tmp^post3, i5^0'=i5^post3, s^0'=s^post3, (0 == 0 /\ -__const_10^0+length4^post3 == 0 /\ tmp___08^0-tmp___08^post3 == 0 /\ i5^post3 == 0 /\ __const_10^0-__const_10^post3 == 0 /\ -tmp^post3+s^post3 == 0), cost: 1 New rule: l3 -> l2 : length4^0'=__const_10^0, tmp^0'=s^post3, i5^0'=0, s^0'=s^post3, 0 == 0, cost: 1 Applied preprocessing Original rule: l4 -> l3 : __const_10^0'=__const_10^post4, tmp___08^0'=tmp___08^post4, length4^0'=length4^post4, tmp^0'=tmp^post4, i5^0'=i5^post4, s^0'=s^post4, (__const_10^0-__const_10^post4 == 0 /\ tmp___08^0-tmp___08^post4 == 0 /\ length4^0-length4^post4 == 0 /\ -tmp^post4+tmp^0 == 0 /\ -s^post4+s^0 == 0 /\ -i5^post4+i5^0 == 0), cost: 1 New rule: l4 -> l3 : TRUE, cost: 1 Simplified rules Start location: l4 5: l0 -> l2 : tmp___08^0'=tmp___08^post1, i5^0'=1+i5^0, 1-length4^0+i5^0 <= 0, cost: 1 6: l2 -> l0 : TRUE, cost: 1 7: l3 -> l2 : length4^0'=__const_10^0, tmp^0'=s^post3, i5^0'=0, s^0'=s^post3, 0 == 0, cost: 1 8: l4 -> l3 : TRUE, cost: 1 Eliminating location l3 by chaining: Applied chaining First rule: l4 -> l3 : TRUE, cost: 1 Second rule: l3 -> l2 : length4^0'=__const_10^0, tmp^0'=s^post3, i5^0'=0, s^0'=s^post3, 0 == 0, cost: 1 New rule: l4 -> l2 : length4^0'=__const_10^0, tmp^0'=s^post3, i5^0'=0, s^0'=s^post3, 0 == 0, cost: 2 Applied deletion Removed the following rules: 7 8 Eliminating location l0 by chaining: Applied chaining First rule: l2 -> l0 : TRUE, cost: 1 Second rule: l0 -> l2 : tmp___08^0'=tmp___08^post1, i5^0'=1+i5^0, 1-length4^0+i5^0 <= 0, cost: 1 New rule: l2 -> l2 : tmp___08^0'=tmp___08^post1, i5^0'=1+i5^0, 1-length4^0+i5^0 <= 0, cost: 2 Applied deletion Removed the following rules: 5 6 Eliminated locations on linear paths Start location: l4 10: l2 -> l2 : tmp___08^0'=tmp___08^post1, i5^0'=1+i5^0, 1-length4^0+i5^0 <= 0, cost: 2 9: l4 -> l2 : length4^0'=__const_10^0, tmp^0'=s^post3, i5^0'=0, s^0'=s^post3, 0 == 0, cost: 2 Applied acceleration Original rule: l2 -> l2 : tmp___08^0'=tmp___08^post1, i5^0'=1+i5^0, 1-length4^0+i5^0 <= 0, cost: 2 New rule: l2 -> l2 : tmp___08^0'=tmp___08^post1, i5^0'=n0+i5^0, (length4^0-n0-i5^0 >= 0 /\ -1+n0 >= 0), cost: 2*n0 Applied instantiation Original rule: l2 -> l2 : tmp___08^0'=tmp___08^post1, i5^0'=n0+i5^0, (length4^0-n0-i5^0 >= 0 /\ -1+n0 >= 0), cost: 2*n0 New rule: l2 -> l2 : tmp___08^0'=tmp___08^post1, i5^0'=length4^0, (0 >= 0 /\ -1+length4^0-i5^0 >= 0), cost: 2*length4^0-2*i5^0 Applied simplification Original rule: l2 -> l2 : tmp___08^0'=tmp___08^post1, i5^0'=length4^0, (0 >= 0 /\ -1+length4^0-i5^0 >= 0), cost: 2*length4^0-2*i5^0 New rule: l2 -> l2 : tmp___08^0'=tmp___08^post1, i5^0'=length4^0, -1+length4^0-i5^0 >= 0, cost: 2*length4^0-2*i5^0 Applied deletion Removed the following rules: 10 Accelerated simple loops Start location: l4 12: l2 -> l2 : tmp___08^0'=tmp___08^post1, i5^0'=length4^0, -1+length4^0-i5^0 >= 0, cost: 2*length4^0-2*i5^0 9: l4 -> l2 : length4^0'=__const_10^0, tmp^0'=s^post3, i5^0'=0, s^0'=s^post3, 0 == 0, cost: 2 Applied chaining First rule: l4 -> l2 : length4^0'=__const_10^0, tmp^0'=s^post3, i5^0'=0, s^0'=s^post3, 0 == 0, cost: 2 Second rule: l2 -> l2 : tmp___08^0'=tmp___08^post1, i5^0'=length4^0, -1+length4^0-i5^0 >= 0, cost: 2*length4^0-2*i5^0 New rule: l4 -> l2 : tmp___08^0'=tmp___08^post1, length4^0'=__const_10^0, tmp^0'=s^post3, i5^0'=__const_10^0, s^0'=s^post3, -1+__const_10^0 >= 0, cost: 2+2*__const_10^0 Applied deletion Removed the following rules: 12 Chained accelerated rules with incoming rules Start location: l4 9: l4 -> l2 : length4^0'=__const_10^0, tmp^0'=s^post3, i5^0'=0, s^0'=s^post3, 0 == 0, cost: 2 13: l4 -> l2 : tmp___08^0'=tmp___08^post1, length4^0'=__const_10^0, tmp^0'=s^post3, i5^0'=__const_10^0, s^0'=s^post3, -1+__const_10^0 >= 0, cost: 2+2*__const_10^0 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