NO ### Pre-processing the ITS problem ### Initial linear ITS problem Start location: __init 0: f1 -> f2 : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2==arg2P_1 ], cost: 1 7: f2 -> f3 : arg1'=arg1P_8, arg2'=arg2P_8, [ arg1<10 && arg1==arg1P_8 && arg2==arg2P_8 ], cost: 1 9: f2 -> f9 : arg1'=arg1P_10, arg2'=arg2P_10, [ arg1>=10 && arg1==arg1P_10 && arg2==arg2P_10 ], cost: 1 1: f3 -> f4 : arg1'=arg1P_2, arg2'=arg2P_2, [ arg1==arg1P_2 && arg1==arg2P_2 ], cost: 1 3: f4 -> f5 : arg1'=arg1P_4, arg2'=arg2P_4, [ arg2>5 && arg1==arg1P_4 && arg2==arg2P_4 ], cost: 1 5: f4 -> f7 : arg1'=arg1P_6, arg2'=arg2P_6, [ arg2<=5 && arg1==arg1P_6 && arg2==arg2P_6 ], cost: 1 2: f5 -> f6 : arg1'=arg1P_3, arg2'=arg2P_3, [ arg2P_3==1+arg2 && arg1==arg1P_3 ], cost: 1 4: f6 -> f4 : arg1'=arg1P_5, arg2'=arg2P_5, [ arg1==arg1P_5 && arg2==arg2P_5 ], cost: 1 6: f7 -> f8 : arg1'=arg1P_7, arg2'=arg2P_7, [ arg1P_7==1+arg1 && arg2==arg2P_7 ], cost: 1 8: f8 -> f2 : arg1'=arg1P_9, arg2'=arg2P_9, [ arg1==arg1P_9 && arg2==arg2P_9 ], cost: 1 10: __init -> f1 : arg1'=arg1P_11, arg2'=arg2P_11, [], cost: 1 Checking for constant complexity: The following rule is satisfiable with cost >= 1, yielding constant complexity: 10: __init -> f1 : arg1'=arg1P_11, arg2'=arg2P_11, [], cost: 1 Removed unreachable and leaf rules: Start location: __init 0: f1 -> f2 : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2==arg2P_1 ], cost: 1 7: f2 -> f3 : arg1'=arg1P_8, arg2'=arg2P_8, [ arg1<10 && arg1==arg1P_8 && arg2==arg2P_8 ], cost: 1 1: f3 -> f4 : arg1'=arg1P_2, arg2'=arg2P_2, [ arg1==arg1P_2 && arg1==arg2P_2 ], cost: 1 3: f4 -> f5 : arg1'=arg1P_4, arg2'=arg2P_4, [ arg2>5 && arg1==arg1P_4 && arg2==arg2P_4 ], cost: 1 5: f4 -> f7 : arg1'=arg1P_6, arg2'=arg2P_6, [ arg2<=5 && arg1==arg1P_6 && arg2==arg2P_6 ], cost: 1 2: f5 -> f6 : arg1'=arg1P_3, arg2'=arg2P_3, [ arg2P_3==1+arg2 && arg1==arg1P_3 ], cost: 1 4: f6 -> f4 : arg1'=arg1P_5, arg2'=arg2P_5, [ arg1==arg1P_5 && arg2==arg2P_5 ], cost: 1 6: f7 -> f8 : arg1'=arg1P_7, arg2'=arg2P_7, [ arg1P_7==1+arg1 && arg2==arg2P_7 ], cost: 1 8: f8 -> f2 : arg1'=arg1P_9, arg2'=arg2P_9, [ arg1==arg1P_9 && arg2==arg2P_9 ], cost: 1 10: __init -> f1 : arg1'=arg1P_11, arg2'=arg2P_11, [], cost: 1 Simplified all rules, resulting in: Start location: __init 0: f1 -> f2 : arg1'=arg1P_1, [], cost: 1 7: f2 -> f3 : [ arg1<10 ], cost: 1 1: f3 -> f4 : arg2'=arg1, [], cost: 1 3: f4 -> f5 : [ arg2>5 ], cost: 1 5: f4 -> f7 : [ arg2<=5 ], cost: 1 2: f5 -> f6 : arg2'=1+arg2, [], cost: 1 4: f6 -> f4 : [], cost: 1 6: f7 -> f8 : arg1'=1+arg1, [], cost: 1 8: f8 -> f2 : [], cost: 1 10: __init -> f1 : arg1'=arg1P_11, arg2'=arg2P_11, [], cost: 1 ### Simplification by acceleration and chaining ### Eliminated locations (on linear paths): Start location: __init 12: f2 -> f4 : arg2'=arg1, [ arg1<10 ], cost: 2 15: f4 -> f4 : arg2'=1+arg2, [ arg2>5 ], cost: 3 16: f4 -> f2 : arg1'=1+arg1, [ arg2<=5 ], cost: 3 11: __init -> f2 : arg1'=arg1P_1, arg2'=arg2P_11, [], cost: 2 Accelerating simple loops of location 3. Accelerating the following rules: 15: f4 -> f4 : arg2'=1+arg2, [ arg2>5 ], cost: 3 Accelerated rule 15 with non-termination, yielding the new rule 17. [accelerate] Nesting with 0 inner and 0 outer candidates Removing the simple loops: 15. Accelerated all simple loops using metering functions (where possible): Start location: __init 12: f2 -> f4 : arg2'=arg1, [ arg1<10 ], cost: 2 16: f4 -> f2 : arg1'=1+arg1, [ arg2<=5 ], cost: 3 17: f4 -> [10] : [ arg2>5 ], cost: NONTERM 11: __init -> f2 : arg1'=arg1P_1, arg2'=arg2P_11, [], cost: 2 Chained accelerated rules (with incoming rules): Start location: __init 12: f2 -> f4 : arg2'=arg1, [ arg1<10 ], cost: 2 18: f2 -> [10] : [ arg1<10 && arg1>5 ], cost: NONTERM 16: f4 -> f2 : arg1'=1+arg1, [ arg2<=5 ], cost: 3 11: __init -> f2 : arg1'=arg1P_1, arg2'=arg2P_11, [], cost: 2 Eliminated locations (on linear paths): Start location: __init 18: f2 -> [10] : [ arg1<10 && arg1>5 ], cost: NONTERM 19: f2 -> f2 : arg1'=1+arg1, arg2'=arg1, [ arg1<=5 ], cost: 5 11: __init -> f2 : arg1'=arg1P_1, arg2'=arg2P_11, [], cost: 2 Accelerating simple loops of location 1. Accelerating the following rules: 19: f2 -> f2 : arg1'=1+arg1, arg2'=arg1, [ arg1<=5 ], cost: 5 Accelerated rule 19 with backward acceleration, yielding the new rule 20. [accelerate] Nesting with 1 inner and 1 outer candidates Removing the simple loops: 19. Accelerated all simple loops using metering functions (where possible): Start location: __init 18: f2 -> [10] : [ arg1<10 && arg1>5 ], cost: NONTERM 20: f2 -> f2 : arg1'=6, arg2'=5, [ 6-arg1>=1 ], cost: 30-5*arg1 11: __init -> f2 : arg1'=arg1P_1, arg2'=arg2P_11, [], cost: 2 Chained accelerated rules (with incoming rules): Start location: __init 18: f2 -> [10] : [ arg1<10 && arg1>5 ], cost: NONTERM 11: __init -> f2 : arg1'=arg1P_1, arg2'=arg2P_11, [], cost: 2 21: __init -> f2 : arg1'=6, arg2'=5, [ 6-arg1P_1>=1 ], cost: 32-5*arg1P_1 Eliminated locations (on tree-shaped paths): Start location: __init 22: __init -> [10] : [ arg1P_1<10 && arg1P_1>5 ], cost: NONTERM 23: __init -> [10] : [ 6-arg1P_1>=1 ], cost: NONTERM ### Computing asymptotic complexity ### Fully simplified ITS problem Start location: __init 22: __init -> [10] : [ arg1P_1<10 && arg1P_1>5 ], cost: NONTERM 23: __init -> [10] : [ 6-arg1P_1>=1 ], cost: NONTERM Computing asymptotic complexity for rule 23 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: [ 6-arg1P_1>=1 ] NO