NO Initial ITS Start location: l3 0: l0 -> l1 : __const_1000^0'=__const_1000^post0, y^0'=y^post0, __const_3000^0'=__const_3000^post0, x^0'=x^post0, __const_110^0'=__const_110^post0, __const_4000^0'=__const_4000^post0, (-__const_3000^post0+__const_3000^0 == 0 /\ 1-x^post0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0 /\ -__const_4000^post0+__const_4000^0 == 0 /\ __const_1000^0-__const_1000^post0 == 0 /\ -__const_1000^0+x^post0-x^0 == 0 /\ y^0-y^post0 == 0 /\ __const_110^0-__const_110^post0 == 0), cost: 1 1: l1 -> l0 : __const_1000^0'=__const_1000^post1, y^0'=y^post1, __const_3000^0'=__const_3000^post1, x^0'=x^post1, __const_110^0'=__const_110^post1, __const_4000^0'=__const_4000^post1, (__const_110^0-__const_110^post1 == 0 /\ __const_1000^0-__const_1000^post1 == 0 /\ -__const_4000^post1+__const_4000^0 == 0 /\ x^0-x^post1 == 0 /\ y^0-y^post1 == 0 /\ -__const_3000^post1+__const_3000^0 == 0), cost: 1 2: l2 -> l0 : __const_1000^0'=__const_1000^post2, y^0'=y^post2, __const_3000^0'=__const_3000^post2, x^0'=x^post2, __const_110^0'=__const_110^post2, __const_4000^0'=__const_4000^post2, (-x^post2+x^0 == 0 /\ __const_1000^0-__const_1000^post2 == 0 /\ __const_4000^0-__const_4000^post2 == 0 /\ -__const_3000^0+y^post2 == 0 /\ __const_110^0-__const_110^post2 == 0 /\ __const_3000^0-__const_3000^post2 == 0), cost: 1 3: l3 -> l2 : __const_1000^0'=__const_1000^post3, y^0'=y^post3, __const_3000^0'=__const_3000^post3, x^0'=x^post3, __const_110^0'=__const_110^post3, __const_4000^0'=__const_4000^post3, (-__const_4000^post3+__const_4000^0 == 0 /\ y^0-y^post3 == 0 /\ -x^post3+x^0 == 0 /\ __const_3000^0-__const_3000^post3 == 0 /\ -__const_110^post3+__const_110^0 == 0 /\ __const_1000^0-__const_1000^post3 == 0), cost: 1 Applied preprocessing Original rule: l0 -> l1 : __const_1000^0'=__const_1000^post0, y^0'=y^post0, __const_3000^0'=__const_3000^post0, x^0'=x^post0, __const_110^0'=__const_110^post0, __const_4000^0'=__const_4000^post0, (-__const_3000^post0+__const_3000^0 == 0 /\ 1-x^post0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0 /\ -__const_4000^post0+__const_4000^0 == 0 /\ __const_1000^0-__const_1000^post0 == 0 /\ -__const_1000^0+x^post0-x^0 == 0 /\ y^0-y^post0 == 0 /\ __const_110^0-__const_110^post0 == 0), cost: 1 New rule: l0 -> l1 : x^0'=__const_1000^0+x^0, (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0), cost: 1 Applied preprocessing Original rule: l1 -> l0 : __const_1000^0'=__const_1000^post1, y^0'=y^post1, __const_3000^0'=__const_3000^post1, x^0'=x^post1, __const_110^0'=__const_110^post1, __const_4000^0'=__const_4000^post1, (__const_110^0-__const_110^post1 == 0 /\ __const_1000^0-__const_1000^post1 == 0 /\ -__const_4000^post1+__const_4000^0 == 0 /\ x^0-x^post1 == 0 /\ y^0-y^post1 == 0 /\ -__const_3000^post1+__const_3000^0 == 0), cost: 1 New rule: l1 -> l0 : TRUE, cost: 1 Applied preprocessing Original rule: l2 -> l0 : __const_1000^0'=__const_1000^post2, y^0'=y^post2, __const_3000^0'=__const_3000^post2, x^0'=x^post2, __const_110^0'=__const_110^post2, __const_4000^0'=__const_4000^post2, (-x^post2+x^0 == 0 /\ __const_1000^0-__const_1000^post2 == 0 /\ __const_4000^0-__const_4000^post2 == 0 /\ -__const_3000^0+y^post2 == 0 /\ __const_110^0-__const_110^post2 == 0 /\ __const_3000^0-__const_3000^post2 == 0), cost: 1 New rule: l2 -> l0 : y^0'=__const_3000^0, TRUE, cost: 1 Applied preprocessing Original rule: l3 -> l2 : __const_1000^0'=__const_1000^post3, y^0'=y^post3, __const_3000^0'=__const_3000^post3, x^0'=x^post3, __const_110^0'=__const_110^post3, __const_4000^0'=__const_4000^post3, (-__const_4000^post3+__const_4000^0 == 0 /\ y^0-y^post3 == 0 /\ -x^post3+x^0 == 0 /\ __const_3000^0-__const_3000^post3 == 0 /\ -__const_110^post3+__const_110^0 == 0 /\ __const_1000^0-__const_1000^post3 == 0), cost: 1 New rule: l3 -> l2 : TRUE, cost: 1 Simplified rules Start location: l3 4: l0 -> l1 : x^0'=__const_1000^0+x^0, (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0), cost: 1 5: l1 -> l0 : TRUE, cost: 1 6: l2 -> l0 : y^0'=__const_3000^0, TRUE, cost: 1 7: l3 -> l2 : TRUE, cost: 1 Eliminating location l2 by chaining: Applied chaining First rule: l3 -> l2 : TRUE, cost: 1 Second rule: l2 -> l0 : y^0'=__const_3000^0, TRUE, cost: 1 New rule: l3 -> l0 : y^0'=__const_3000^0, TRUE, cost: 2 Applied deletion Removed the following rules: 6 7 Eliminating location l1 by chaining: Applied chaining First rule: l0 -> l1 : x^0'=__const_1000^0+x^0, (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0), cost: 1 Second rule: l1 -> l0 : TRUE, cost: 1 New rule: l0 -> l0 : x^0'=__const_1000^0+x^0, (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0), cost: 2 Applied deletion Removed the following rules: 4 5 Eliminated locations on linear paths Start location: l3 9: l0 -> l0 : x^0'=__const_1000^0+x^0, (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0), cost: 2 8: l3 -> l0 : y^0'=__const_3000^0, TRUE, cost: 2 Applied acceleration Original rule: l0 -> l0 : x^0'=__const_1000^0+x^0, (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0), cost: 2 New rule: l0 -> l0 : x^0'=x^0+__const_1000^0*n0, (n0 >= 0 /\ -1+__const_1000^0+x^0-__const_110^0 >= 0 /\ -1-y^0+__const_4000^0 >= 0 /\ -1+__const_1000^0+__const_1000^0*(-1+n0)+x^0-__const_110^0 >= 0), cost: 2*n0 Applied recurrent set Original rule: l0 -> l0 : x^0'=__const_1000^0+x^0, (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0), cost: 2 New rule: l0 -> [4] : (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0 /\ 1-__const_1000^0 <= 0), cost: NONTERM Applied fixed-point processor Original rule: l0 -> l0 : x^0'=__const_1000^0+x^0, (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0), cost: 2 New rule: l0 -> [4] : (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0 /\ -__const_1000^0 == 0), cost: NONTERM Applied deletion Removed the following rules: 9 Accelerated simple loops Start location: l3 10: l0 -> l0 : x^0'=x^0+__const_1000^0*n0, (n0 >= 0 /\ -1+__const_1000^0+x^0-__const_110^0 >= 0 /\ -1-y^0+__const_4000^0 >= 0 /\ -1+__const_1000^0+__const_1000^0*(-1+n0)+x^0-__const_110^0 >= 0), cost: 2*n0 11: l0 -> [4] : (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0 /\ 1-__const_1000^0 <= 0), cost: NONTERM 12: l0 -> [4] : (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0 /\ -__const_1000^0 == 0), cost: NONTERM 8: l3 -> l0 : y^0'=__const_3000^0, TRUE, cost: 2 Applied chaining First rule: l3 -> l0 : y^0'=__const_3000^0, TRUE, cost: 2 Second rule: l0 -> l0 : x^0'=x^0+__const_1000^0*n0, (n0 >= 0 /\ -1+__const_1000^0+x^0-__const_110^0 >= 0 /\ -1-y^0+__const_4000^0 >= 0 /\ -1+__const_1000^0+__const_1000^0*(-1+n0)+x^0-__const_110^0 >= 0), cost: 2*n0 New rule: l3 -> l0 : y^0'=__const_3000^0, x^0'=x^0+__const_1000^0*n0, (-1-__const_3000^0+__const_4000^0 >= 0 /\ n0 >= 0 /\ -1+__const_1000^0+x^0-__const_110^0 >= 0 /\ -1+__const_1000^0+__const_1000^0*(-1+n0)+x^0-__const_110^0 >= 0), cost: 2+2*n0 Applied chaining First rule: l3 -> l0 : y^0'=__const_3000^0, TRUE, cost: 2 Second rule: l0 -> [4] : (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0 /\ 1-__const_1000^0 <= 0), cost: NONTERM New rule: l3 -> [4] : (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1-__const_1000^0 <= 0 /\ 1+__const_3000^0-__const_4000^0 <= 0), cost: NONTERM Applied chaining First rule: l3 -> l0 : y^0'=__const_3000^0, TRUE, cost: 2 Second rule: l0 -> [4] : (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1+y^0-__const_4000^0 <= 0 /\ -__const_1000^0 == 0), cost: NONTERM New rule: l3 -> [4] : (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ -__const_1000^0 == 0 /\ 1+__const_3000^0-__const_4000^0 <= 0), cost: NONTERM Applied deletion Removed the following rules: 10 11 12 Chained accelerated rules with incoming rules Start location: l3 8: l3 -> l0 : y^0'=__const_3000^0, TRUE, cost: 2 13: l3 -> l0 : y^0'=__const_3000^0, x^0'=x^0+__const_1000^0*n0, (-1-__const_3000^0+__const_4000^0 >= 0 /\ n0 >= 0 /\ -1+__const_1000^0+x^0-__const_110^0 >= 0 /\ -1+__const_1000^0+__const_1000^0*(-1+n0)+x^0-__const_110^0 >= 0), cost: 2+2*n0 14: l3 -> [4] : (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1-__const_1000^0 <= 0 /\ 1+__const_3000^0-__const_4000^0 <= 0), cost: NONTERM 15: l3 -> [4] : (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ -__const_1000^0 == 0 /\ 1+__const_3000^0-__const_4000^0 <= 0), cost: NONTERM Removed unreachable locations and irrelevant leafs Start location: l3 14: l3 -> [4] : (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1-__const_1000^0 <= 0 /\ 1+__const_3000^0-__const_4000^0 <= 0), cost: NONTERM 15: l3 -> [4] : (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ -__const_1000^0 == 0 /\ 1+__const_3000^0-__const_4000^0 <= 0), cost: NONTERM Computing asymptotic complexity Proved nontermination of rule 14 via SMT. Proved the following lower bound Complexity: Nonterm Cpx degree: Nonterm Solved cost: NONTERM Rule cost: NONTERM Rule guard: (1-__const_1000^0-x^0+__const_110^0 <= 0 /\ 1-__const_1000^0 <= 0 /\ 1+__const_3000^0-__const_4000^0 <= 0)