NO Initial ITS Start location: l3 0: l0 -> l1 : __const_100^0'=__const_100^post0, __const_300^0'=__const_300^post0, x^0'=x^post0, __const_200^0'=__const_200^post0, __const_400^0'=__const_400^post0, (-__const_300^0-x^0+x^post0 == 0 /\ 1+__const_100^0-x^post0 <= 0 /\ __const_100^0-__const_100^post0 == 0 /\ -__const_400^post0+__const_400^0 == 0 /\ -__const_200^post0+__const_200^0 == 0 /\ __const_300^0-__const_300^post0 == 0), cost: 1 1: l1 -> l0 : __const_100^0'=__const_100^post1, __const_300^0'=__const_300^post1, x^0'=x^post1, __const_200^0'=__const_200^post1, __const_400^0'=__const_400^post1, (1+__const_100^0-x^post1 <= 0 /\ __const_100^0-__const_100^post1 == 0 /\ x^post1-x^0-__const_400^0 == 0 /\ __const_200^0-__const_200^post1 == 0 /\ -__const_400^post1+__const_400^0 == 0 /\ -__const_300^post1+__const_300^0 == 0), cost: 1 2: l2 -> l0 : __const_100^0'=__const_100^post2, __const_300^0'=__const_300^post2, x^0'=x^post2, __const_200^0'=__const_200^post2, __const_400^0'=__const_400^post2, (__const_100^0-__const_100^post2 == 0 /\ -__const_200^post2+__const_200^0 == 0 /\ x^post2-x^0-__const_200^0 == 0 /\ __const_300^0-__const_300^post2 == 0 /\ 1+__const_100^0-x^post2 <= 0 /\ -__const_400^post2+__const_400^0 == 0), cost: 1 3: l2 -> l1 : __const_100^0'=__const_100^post3, __const_300^0'=__const_300^post3, x^0'=x^post3, __const_200^0'=__const_200^post3, __const_400^0'=__const_400^post3, (-__const_400^post3+__const_400^0 == 0 /\ __const_200^0-__const_200^post3 == 0 /\ -__const_100^0-x^0+x^post3 == 0 /\ __const_300^0-__const_300^post3 == 0 /\ 1+__const_100^0-x^post3 <= 0 /\ __const_100^0-__const_100^post3 == 0), cost: 1 4: l3 -> l2 : __const_100^0'=__const_100^post4, __const_300^0'=__const_300^post4, x^0'=x^post4, __const_200^0'=__const_200^post4, __const_400^0'=__const_400^post4, (-__const_400^post4+__const_400^0 == 0 /\ -x^post4+x^0 == 0 /\ -__const_200^post4+__const_200^0 == 0 /\ __const_100^0-__const_100^post4 == 0 /\ __const_300^0-__const_300^post4 == 0), cost: 1 Applied preprocessing Original rule: l0 -> l1 : __const_100^0'=__const_100^post0, __const_300^0'=__const_300^post0, x^0'=x^post0, __const_200^0'=__const_200^post0, __const_400^0'=__const_400^post0, (-__const_300^0-x^0+x^post0 == 0 /\ 1+__const_100^0-x^post0 <= 0 /\ __const_100^0-__const_100^post0 == 0 /\ -__const_400^post0+__const_400^0 == 0 /\ -__const_200^post0+__const_200^0 == 0 /\ __const_300^0-__const_300^post0 == 0), cost: 1 New rule: l0 -> l1 : x^0'=__const_300^0+x^0, 1+__const_100^0-__const_300^0-x^0 <= 0, cost: 1 Applied preprocessing Original rule: l1 -> l0 : __const_100^0'=__const_100^post1, __const_300^0'=__const_300^post1, x^0'=x^post1, __const_200^0'=__const_200^post1, __const_400^0'=__const_400^post1, (1+__const_100^0-x^post1 <= 0 /\ __const_100^0-__const_100^post1 == 0 /\ x^post1-x^0-__const_400^0 == 0 /\ __const_200^0-__const_200^post1 == 0 /\ -__const_400^post1+__const_400^0 == 0 /\ -__const_300^post1+__const_300^0 == 0), cost: 1 New rule: l1 -> l0 : x^0'=x^0+__const_400^0, 1+__const_100^0-x^0-__const_400^0 <= 0, cost: 1 Applied preprocessing Original rule: l2 -> l0 : __const_100^0'=__const_100^post2, __const_300^0'=__const_300^post2, x^0'=x^post2, __const_200^0'=__const_200^post2, __const_400^0'=__const_400^post2, (__const_100^0-__const_100^post2 == 0 /\ -__const_200^post2+__const_200^0 == 0 /\ x^post2-x^0-__const_200^0 == 0 /\ __const_300^0-__const_300^post2 == 0 /\ 1+__const_100^0-x^post2 <= 0 /\ -__const_400^post2+__const_400^0 == 0), cost: 1 New rule: l2 -> l0 : x^0'=x^0+__const_200^0, 1+__const_100^0-x^0-__const_200^0 <= 0, cost: 1 Applied preprocessing Original rule: l2 -> l1 : __const_100^0'=__const_100^post3, __const_300^0'=__const_300^post3, x^0'=x^post3, __const_200^0'=__const_200^post3, __const_400^0'=__const_400^post3, (-__const_400^post3+__const_400^0 == 0 /\ __const_200^0-__const_200^post3 == 0 /\ -__const_100^0-x^0+x^post3 == 0 /\ __const_300^0-__const_300^post3 == 0 /\ 1+__const_100^0-x^post3 <= 0 /\ __const_100^0-__const_100^post3 == 0), cost: 1 New rule: l2 -> l1 : x^0'=__const_100^0+x^0, -1+x^0 >= 0, cost: 1 Applied preprocessing Original rule: l3 -> l2 : __const_100^0'=__const_100^post4, __const_300^0'=__const_300^post4, x^0'=x^post4, __const_200^0'=__const_200^post4, __const_400^0'=__const_400^post4, (-__const_400^post4+__const_400^0 == 0 /\ -x^post4+x^0 == 0 /\ -__const_200^post4+__const_200^0 == 0 /\ __const_100^0-__const_100^post4 == 0 /\ __const_300^0-__const_300^post4 == 0), cost: 1 New rule: l3 -> l2 : TRUE, cost: 1 Simplified rules Start location: l3 5: l0 -> l1 : x^0'=__const_300^0+x^0, 1+__const_100^0-__const_300^0-x^0 <= 0, cost: 1 6: l1 -> l0 : x^0'=x^0+__const_400^0, 1+__const_100^0-x^0-__const_400^0 <= 0, cost: 1 7: l2 -> l0 : x^0'=x^0+__const_200^0, 1+__const_100^0-x^0-__const_200^0 <= 0, cost: 1 8: l2 -> l1 : x^0'=__const_100^0+x^0, -1+x^0 >= 0, cost: 1 9: l3 -> l2 : TRUE, cost: 1 Eliminating location l2 by chaining: Applied chaining First rule: l3 -> l2 : TRUE, cost: 1 Second rule: l2 -> l0 : x^0'=x^0+__const_200^0, 1+__const_100^0-x^0-__const_200^0 <= 0, cost: 1 New rule: l3 -> l0 : x^0'=x^0+__const_200^0, 1+__const_100^0-x^0-__const_200^0 <= 0, cost: 2 Applied chaining First rule: l3 -> l2 : TRUE, cost: 1 Second rule: l2 -> l1 : x^0'=__const_100^0+x^0, -1+x^0 >= 0, cost: 1 New rule: l3 -> l1 : x^0'=__const_100^0+x^0, -1+x^0 >= 0, cost: 2 Applied deletion Removed the following rules: 7 8 9 Eliminated locations on tree-shaped paths Start location: l3 5: l0 -> l1 : x^0'=__const_300^0+x^0, 1+__const_100^0-__const_300^0-x^0 <= 0, cost: 1 6: l1 -> l0 : x^0'=x^0+__const_400^0, 1+__const_100^0-x^0-__const_400^0 <= 0, cost: 1 10: l3 -> l0 : x^0'=x^0+__const_200^0, 1+__const_100^0-x^0-__const_200^0 <= 0, cost: 2 11: l3 -> l1 : x^0'=__const_100^0+x^0, -1+x^0 >= 0, cost: 2 Eliminated location l0 Start location: l3 12: l1 -> l1 : x^0'=__const_300^0+x^0+__const_400^0, (1+__const_100^0-x^0-__const_400^0 <= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_400^0 <= 0), cost: 2 11: l3 -> l1 : x^0'=__const_100^0+x^0, -1+x^0 >= 0, cost: 2 13: l3 -> l1 : x^0'=__const_300^0+x^0+__const_200^0, (1+__const_100^0-x^0-__const_200^0 <= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_200^0 <= 0), cost: 3 Applied acceleration Original rule: l1 -> l1 : x^0'=__const_300^0+x^0+__const_400^0, (1+__const_100^0-x^0-__const_400^0 <= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_400^0 <= 0), cost: 2 New rule: l1 -> l1 : x^0'=__const_300^0*n0+x^0+__const_400^0*n0, (-1-__const_100^0+__const_300^0+x^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1-__const_100^0+x^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1-__const_100^0+x^0+__const_400^0 >= 0 /\ n0 >= 0 /\ -1-__const_100^0+__const_300^0+x^0+__const_400^0 >= 0), cost: 2*n0 Applied fixed-point processor Original rule: l1 -> l1 : x^0'=__const_300^0+x^0+__const_400^0, (1+__const_100^0-x^0-__const_400^0 <= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_400^0 <= 0), cost: 2 New rule: l1 -> [4] : (-__const_300^0-__const_400^0 == 0 /\ 1+__const_100^0-x^0-__const_400^0 <= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_400^0 <= 0), cost: NONTERM Applied deletion Removed the following rules: 12 Accelerated simple loops Start location: l3 14: l1 -> l1 : x^0'=__const_300^0*n0+x^0+__const_400^0*n0, (-1-__const_100^0+__const_300^0+x^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1-__const_100^0+x^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1-__const_100^0+x^0+__const_400^0 >= 0 /\ n0 >= 0 /\ -1-__const_100^0+__const_300^0+x^0+__const_400^0 >= 0), cost: 2*n0 15: l1 -> [4] : (-__const_300^0-__const_400^0 == 0 /\ 1+__const_100^0-x^0-__const_400^0 <= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_400^0 <= 0), cost: NONTERM 11: l3 -> l1 : x^0'=__const_100^0+x^0, -1+x^0 >= 0, cost: 2 13: l3 -> l1 : x^0'=__const_300^0+x^0+__const_200^0, (1+__const_100^0-x^0-__const_200^0 <= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_200^0 <= 0), cost: 3 Applied chaining First rule: l3 -> l1 : x^0'=__const_100^0+x^0, -1+x^0 >= 0, cost: 2 Second rule: l1 -> l1 : x^0'=__const_300^0*n0+x^0+__const_400^0*n0, (-1-__const_100^0+__const_300^0+x^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1-__const_100^0+x^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1-__const_100^0+x^0+__const_400^0 >= 0 /\ n0 >= 0 /\ -1-__const_100^0+__const_300^0+x^0+__const_400^0 >= 0), cost: 2*n0 New rule: l3 -> l1 : x^0'=__const_100^0+__const_300^0*n0+x^0+__const_400^0*n0, (-1+x^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1+__const_300^0+x^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1+__const_300^0+x^0+__const_400^0 >= 0 /\ -1+x^0+__const_400^0 >= 0 /\ -1+x^0 >= 0 /\ n0 >= 0), cost: 2+2*n0 Applied chaining First rule: l3 -> l1 : x^0'=__const_300^0+x^0+__const_200^0, (1+__const_100^0-x^0-__const_200^0 <= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_200^0 <= 0), cost: 3 Second rule: l1 -> l1 : x^0'=__const_300^0*n0+x^0+__const_400^0*n0, (-1-__const_100^0+__const_300^0+x^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1-__const_100^0+x^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1-__const_100^0+x^0+__const_400^0 >= 0 /\ n0 >= 0 /\ -1-__const_100^0+__const_300^0+x^0+__const_400^0 >= 0), cost: 2*n0 New rule: l3 -> l1 : x^0'=__const_300^0*n0+__const_300^0+x^0+__const_200^0+__const_400^0*n0, (-1-__const_100^0+2*__const_300^0+x^0+__const_200^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1-__const_100^0+__const_300^0+x^0+__const_200^0+__const_400^0 >= 0 /\ -1-__const_100^0+__const_300^0+x^0+__const_200^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1-__const_100^0+2*__const_300^0+x^0+__const_200^0+__const_400^0 >= 0 /\ 1+__const_100^0-x^0-__const_200^0 <= 0 /\ n0 >= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_200^0 <= 0), cost: 3+2*n0 Applied chaining First rule: l3 -> l1 : x^0'=__const_100^0+x^0, -1+x^0 >= 0, cost: 2 Second rule: l1 -> [4] : (-__const_300^0-__const_400^0 == 0 /\ 1+__const_100^0-x^0-__const_400^0 <= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_400^0 <= 0), cost: NONTERM New rule: l3 -> [4] : (1-x^0-__const_400^0 <= 0 /\ -__const_300^0-__const_400^0 == 0 /\ -1+x^0 >= 0), cost: NONTERM Applied chaining First rule: l3 -> l1 : x^0'=__const_300^0+x^0+__const_200^0, (1+__const_100^0-x^0-__const_200^0 <= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_200^0 <= 0), cost: 3 Second rule: l1 -> [4] : (-__const_300^0-__const_400^0 == 0 /\ 1+__const_100^0-x^0-__const_400^0 <= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_400^0 <= 0), cost: NONTERM New rule: l3 -> [4] : (-__const_300^0-__const_400^0 == 0 /\ 1+__const_100^0-x^0-__const_200^0 <= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_200^0 <= 0), cost: NONTERM Applied deletion Removed the following rules: 14 15 Chained accelerated rules with incoming rules Start location: l3 11: l3 -> l1 : x^0'=__const_100^0+x^0, -1+x^0 >= 0, cost: 2 13: l3 -> l1 : x^0'=__const_300^0+x^0+__const_200^0, (1+__const_100^0-x^0-__const_200^0 <= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_200^0 <= 0), cost: 3 16: l3 -> l1 : x^0'=__const_100^0+__const_300^0*n0+x^0+__const_400^0*n0, (-1+x^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1+__const_300^0+x^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1+__const_300^0+x^0+__const_400^0 >= 0 /\ -1+x^0+__const_400^0 >= 0 /\ -1+x^0 >= 0 /\ n0 >= 0), cost: 2+2*n0 17: l3 -> l1 : x^0'=__const_300^0*n0+__const_300^0+x^0+__const_200^0+__const_400^0*n0, (-1-__const_100^0+2*__const_300^0+x^0+__const_200^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1-__const_100^0+__const_300^0+x^0+__const_200^0+__const_400^0 >= 0 /\ -1-__const_100^0+__const_300^0+x^0+__const_200^0+(-1+n0)*__const_400^0+__const_300^0*(-1+n0)+__const_400^0 >= 0 /\ -1-__const_100^0+2*__const_300^0+x^0+__const_200^0+__const_400^0 >= 0 /\ 1+__const_100^0-x^0-__const_200^0 <= 0 /\ n0 >= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_200^0 <= 0), cost: 3+2*n0 18: l3 -> [4] : (1-x^0-__const_400^0 <= 0 /\ -__const_300^0-__const_400^0 == 0 /\ -1+x^0 >= 0), cost: NONTERM 19: l3 -> [4] : (-__const_300^0-__const_400^0 == 0 /\ 1+__const_100^0-x^0-__const_200^0 <= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_200^0 <= 0), cost: NONTERM Removed unreachable locations and irrelevant leafs Start location: l3 18: l3 -> [4] : (1-x^0-__const_400^0 <= 0 /\ -__const_300^0-__const_400^0 == 0 /\ -1+x^0 >= 0), cost: NONTERM 19: l3 -> [4] : (-__const_300^0-__const_400^0 == 0 /\ 1+__const_100^0-x^0-__const_200^0 <= 0 /\ 1+__const_100^0-__const_300^0-x^0-__const_200^0 <= 0), cost: NONTERM Computing asymptotic complexity Proved nontermination of rule 18 via SMT. Proved the following lower bound Complexity: Nonterm Cpx degree: Nonterm Solved cost: NONTERM Rule cost: NONTERM Rule guard: (1-x^0-__const_400^0 <= 0 /\ -__const_300^0-__const_400^0 == 0 /\ -1+x^0 >= 0)