NO ### Pre-processing the ITS problem ### Initial linear ITS problem Start location: __init 0: f1 -> f2 : arg1'=arg1P_1, [ 0==arg1P_1 ], cost: 1 7: f2 -> f3 : arg1'=arg1P_8, [ arg1<100 && arg1==arg1P_8 ], cost: 1 9: f2 -> f9 : arg1'=arg1P_10, [ arg1>=100 && arg1==arg1P_10 ], cost: 1 1: f4 -> f7 : arg1'=arg1P_2, [ arg1P_2==1+arg1 ], cost: 1 5: f7 -> f6 : arg1'=arg1P_6, [ arg1==arg1P_6 ], cost: 1 2: f5 -> f8 : arg1'=arg1P_3, [ arg1P_3==-1+arg1 ], cost: 1 6: f8 -> f6 : arg1'=arg1P_7, [ arg1==arg1P_7 ], cost: 1 3: f3 -> f4 : arg1'=arg1P_4, [ arg1<50 && arg1==arg1P_4 ], cost: 1 4: f3 -> f5 : arg1'=arg1P_5, [ arg1>=50 && arg1==arg1P_5 ], cost: 1 8: f6 -> f2 : arg1'=arg1P_9, [ arg1==arg1P_9 ], cost: 1 10: __init -> f1 : arg1'=arg1P_11, [], cost: 1 Checking for constant complexity: The following rule is satisfiable with cost >= 1, yielding constant complexity: 10: __init -> f1 : arg1'=arg1P_11, [], cost: 1 Removed unreachable and leaf rules: Start location: __init 0: f1 -> f2 : arg1'=arg1P_1, [ 0==arg1P_1 ], cost: 1 7: f2 -> f3 : arg1'=arg1P_8, [ arg1<100 && arg1==arg1P_8 ], cost: 1 1: f4 -> f7 : arg1'=arg1P_2, [ arg1P_2==1+arg1 ], cost: 1 5: f7 -> f6 : arg1'=arg1P_6, [ arg1==arg1P_6 ], cost: 1 2: f5 -> f8 : arg1'=arg1P_3, [ arg1P_3==-1+arg1 ], cost: 1 6: f8 -> f6 : arg1'=arg1P_7, [ arg1==arg1P_7 ], cost: 1 3: f3 -> f4 : arg1'=arg1P_4, [ arg1<50 && arg1==arg1P_4 ], cost: 1 4: f3 -> f5 : arg1'=arg1P_5, [ arg1>=50 && arg1==arg1P_5 ], cost: 1 8: f6 -> f2 : arg1'=arg1P_9, [ arg1==arg1P_9 ], cost: 1 10: __init -> f1 : arg1'=arg1P_11, [], cost: 1 Simplified all rules, resulting in: Start location: __init 0: f1 -> f2 : arg1'=0, [], cost: 1 7: f2 -> f3 : [ arg1<100 ], cost: 1 1: f4 -> f7 : arg1'=1+arg1, [], cost: 1 5: f7 -> f6 : [], cost: 1 2: f5 -> f8 : arg1'=-1+arg1, [], cost: 1 6: f8 -> f6 : [], cost: 1 3: f3 -> f4 : [ arg1<50 ], cost: 1 4: f3 -> f5 : [ arg1>=50 ], cost: 1 8: f6 -> f2 : [], cost: 1 10: __init -> f1 : arg1'=arg1P_11, [], cost: 1 ### Simplification by acceleration and chaining ### Eliminated locations (on linear paths): Start location: __init 7: f2 -> f3 : [ arg1<100 ], cost: 1 14: f3 -> f6 : arg1'=1+arg1, [ arg1<50 ], cost: 3 15: f3 -> f6 : arg1'=-1+arg1, [ arg1>=50 ], cost: 3 8: f6 -> f2 : [], cost: 1 11: __init -> f2 : arg1'=0, [], cost: 2 Eliminated locations (on tree-shaped paths): Start location: __init 16: f2 -> f6 : arg1'=1+arg1, [ arg1<50 ], cost: 4 17: f2 -> f6 : arg1'=-1+arg1, [ arg1<100 && arg1>=50 ], cost: 4 8: f6 -> f2 : [], cost: 1 11: __init -> f2 : arg1'=0, [], cost: 2 Eliminated locations (on tree-shaped paths): Start location: __init 18: f2 -> f2 : arg1'=1+arg1, [ arg1<50 ], cost: 5 19: f2 -> f2 : arg1'=-1+arg1, [ arg1<100 && arg1>=50 ], cost: 5 11: __init -> f2 : arg1'=0, [], cost: 2 Accelerating simple loops of location 1. Accelerating the following rules: 18: f2 -> f2 : arg1'=1+arg1, [ arg1<50 ], cost: 5 19: f2 -> f2 : arg1'=-1+arg1, [ arg1<100 && arg1>=50 ], cost: 5 Accelerated rule 18 with backward acceleration, yielding the new rule 20. Accelerated rule 19 with backward acceleration, yielding the new rule 21. [accelerate] Nesting with 2 inner and 2 outer candidates Nested simple loops 19 (outer loop) and 20 (inner loop) with Rule(1 | 50-arg1>=0, | NONTERM || 10 | ), resulting in the new rules: 22, 23. Nested simple loops 18 (outer loop) and 21 (inner loop) with Rule(1 | arg1<100, -49+arg1>=0, | NONTERM || 10 | ), resulting in the new rules: 24, 25. Removing the simple loops: 18 19. Accelerated all simple loops using metering functions (where possible): Start location: __init 20: f2 -> f2 : arg1'=50, [ 50-arg1>=0 ], cost: 250-5*arg1 21: f2 -> f2 : arg1'=49, [ arg1<100 && -49+arg1>=0 ], cost: -245+5*arg1 22: f2 -> [10] : [ 50-arg1>=0 ], cost: NONTERM 23: f2 -> [10] : [ arg1>=50 && 51-arg1>=0 ], cost: NONTERM 24: f2 -> [10] : [ arg1<100 && -49+arg1>=0 ], cost: NONTERM 25: f2 -> [10] : [ arg1<50 && -48+arg1>=0 ], cost: NONTERM 11: __init -> f2 : arg1'=0, [], cost: 2 Chained accelerated rules (with incoming rules): Start location: __init 11: __init -> f2 : arg1'=0, [], cost: 2 26: __init -> f2 : arg1'=50, [], cost: 252 27: __init -> [10] : [], cost: NONTERM Removed unreachable locations (and leaf rules with constant cost): Start location: __init 27: __init -> [10] : [], cost: NONTERM ### Computing asymptotic complexity ### Fully simplified ITS problem Start location: __init 27: __init -> [10] : [], cost: NONTERM Computing asymptotic complexity for rule 27 Guard is satisfiable, yielding nontermination Resulting cost NONTERM has complexity: Nonterm Found new complexity Nonterm. Obtained the following overall complexity (w.r.t. the length of the input n): Complexity: Nonterm Cpx degree: Nonterm Solved cost: NONTERM Rule cost: NONTERM Rule guard: [] NO