NO ### Pre-processing the ITS problem ### Initial linear ITS problem Start location: __init 0: f1_0_main_New -> f909_0_main_GE : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=arg3P_1, arg4'=arg4P_1, [ arg1P_1<=arg1 && arg2>-1 && -1+arg2P_1<=arg1 && arg1>0 && arg1P_1>0 && arg2P_1>1 && 1==arg3P_1 && arg2==arg4P_1 ], cost: 1 1: f909_0_main_GE -> f1058_0_size_NULL : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg3P_2, arg4'=arg4P_2, [ arg1>0 && arg4<=arg3 && arg2>0 && arg1P_2>-1 ], cost: 1 5: f909_0_main_GE -> f909_0_main_GE : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [ arg4>2+arg3 && arg4>1+arg3 && arg4>-1 && arg1P_6<=arg1 && arg1P_6<=arg2 && arg1>0 && arg2>0 && arg1P_6>0 && arg2P_6>6 && 4+arg3==arg3P_6 && arg4==arg4P_6 ], cost: 1 2: f1058_0_size_NULL -> f1097_0_outputList_NULL : arg1'=arg1P_3, arg2'=arg2P_3, arg3'=arg3P_3, arg4'=arg4P_3, [ arg1>-1 && arg1P_3>-1 ], cost: 1 3: f1058_0_size_NULL -> f1058_0_size_NULL : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, [ arg1>0 && arg1P_4>-1 ], cost: 1 4: f1097_0_outputList_NULL -> f1097_0_outputList_NULL : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, arg4'=arg4P_5, [ arg1>0 && arg1P_5>-1 ], cost: 1 6: __init -> f1_0_main_New : arg1'=arg1P_7, arg2'=arg2P_7, arg3'=arg3P_7, arg4'=arg4P_7, [], cost: 1 Checking for constant complexity: The following rule is satisfiable with cost >= 1, yielding constant complexity: 6: __init -> f1_0_main_New : arg1'=arg1P_7, arg2'=arg2P_7, arg3'=arg3P_7, arg4'=arg4P_7, [], cost: 1 Simplified all rules, resulting in: Start location: __init 0: f1_0_main_New -> f909_0_main_GE : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=1, arg4'=arg2, [ arg1P_1<=arg1 && arg2>-1 && -1+arg2P_1<=arg1 && arg1>0 && arg1P_1>0 && arg2P_1>1 ], cost: 1 1: f909_0_main_GE -> f1058_0_size_NULL : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg3P_2, arg4'=arg4P_2, [ arg1>0 && arg4<=arg3 && arg2>0 && arg1P_2>-1 ], cost: 1 5: f909_0_main_GE -> f909_0_main_GE : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=4+arg3, [ arg4>2+arg3 && arg4>-1 && arg1P_6<=arg1 && arg1P_6<=arg2 && arg1>0 && arg2>0 && arg1P_6>0 && arg2P_6>6 ], cost: 1 2: f1058_0_size_NULL -> f1097_0_outputList_NULL : arg1'=arg1P_3, arg2'=arg2P_3, arg3'=arg3P_3, arg4'=arg4P_3, [ arg1>-1 && arg1P_3>-1 ], cost: 1 3: f1058_0_size_NULL -> f1058_0_size_NULL : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, [ arg1>0 && arg1P_4>-1 ], cost: 1 4: f1097_0_outputList_NULL -> f1097_0_outputList_NULL : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, arg4'=arg4P_5, [ arg1>0 && arg1P_5>-1 ], cost: 1 6: __init -> f1_0_main_New : arg1'=arg1P_7, arg2'=arg2P_7, arg3'=arg3P_7, arg4'=arg4P_7, [], cost: 1 ### Simplification by acceleration and chaining ### Accelerating simple loops of location 1. Accelerating the following rules: 5: f909_0_main_GE -> f909_0_main_GE : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=4+arg3, [ arg4>2+arg3 && arg4>-1 && arg1P_6<=arg1 && arg1P_6<=arg2 && arg1>0 && arg2>0 && arg1P_6>0 && arg2P_6>6 ], cost: 1 [test] deduced pseudo-invariant arg1P_6-arg2P_6<=0, also trying -arg1P_6+arg2P_6<=-1 Accelerated rule 5 with backward acceleration, yielding the new rule 7. [accelerate] Nesting with 1 inner and 1 outer candidates Accelerating simple loops of location 2. Accelerating the following rules: 3: f1058_0_size_NULL -> f1058_0_size_NULL : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, [ arg1>0 && arg1P_4>-1 ], cost: 1 [test] deduced pseudo-invariant -arg1P_4+arg1<=0, also trying arg1P_4-arg1<=-1 Accelerated rule 3 with non-termination, yielding the new rule 8. Accelerated rule 3 with non-termination, yielding the new rule 9. Accelerated rule 3 with backward acceleration, yielding the new rule 10. [accelerate] Nesting with 0 inner and 1 outer candidates Also removing duplicate rules: 9. Accelerating simple loops of location 3. Accelerating the following rules: 4: f1097_0_outputList_NULL -> f1097_0_outputList_NULL : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, arg4'=arg4P_5, [ arg1>0 && arg1P_5>-1 ], cost: 1 [test] deduced pseudo-invariant -arg1P_5+arg1<=0, also trying arg1P_5-arg1<=-1 Accelerated rule 4 with non-termination, yielding the new rule 11. Accelerated rule 4 with non-termination, yielding the new rule 12. Accelerated rule 4 with backward acceleration, yielding the new rule 13. [accelerate] Nesting with 0 inner and 1 outer candidates Also removing duplicate rules: 12. Accelerated all simple loops using metering functions (where possible): Start location: __init 0: f1_0_main_New -> f909_0_main_GE : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=1, arg4'=arg2, [ arg1P_1<=arg1 && arg2>-1 && -1+arg2P_1<=arg1 && arg1>0 && arg1P_1>0 && arg2P_1>1 ], cost: 1 1: f909_0_main_GE -> f1058_0_size_NULL : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg3P_2, arg4'=arg4P_2, [ arg1>0 && arg4<=arg3 && arg2>0 && arg1P_2>-1 ], cost: 1 5: f909_0_main_GE -> f909_0_main_GE : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=4+arg3, [ arg4>2+arg3 && arg4>-1 && arg1P_6<=arg1 && arg1P_6<=arg2 && arg1>0 && arg2>0 && arg1P_6>0 && arg2P_6>6 ], cost: 1 7: f909_0_main_GE -> f909_0_main_GE : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=4*k+arg3, [ arg4>-1 && arg1P_6<=arg1 && arg1P_6<=arg2 && arg1>0 && arg2>0 && arg1P_6>0 && arg2P_6>6 && arg1P_6-arg2P_6<=0 && k>=1 && arg4>-2+4*k+arg3 ], cost: k 2: f1058_0_size_NULL -> f1097_0_outputList_NULL : arg1'=arg1P_3, arg2'=arg2P_3, arg3'=arg3P_3, arg4'=arg4P_3, [ arg1>-1 && arg1P_3>-1 ], cost: 1 3: f1058_0_size_NULL -> f1058_0_size_NULL : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, [ arg1>0 && arg1P_4>-1 ], cost: 1 8: f1058_0_size_NULL -> [6] : [ arg1>0 && arg1P_4>0 ], cost: NONTERM 10: f1058_0_size_NULL -> [6] : [ arg1>0 && arg1P_4>-1 && -arg1P_4+arg1<=0 ], cost: NONTERM 4: f1097_0_outputList_NULL -> f1097_0_outputList_NULL : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, arg4'=arg4P_5, [ arg1>0 && arg1P_5>-1 ], cost: 1 11: f1097_0_outputList_NULL -> [7] : [ arg1>0 && arg1P_5>0 ], cost: NONTERM 13: f1097_0_outputList_NULL -> [7] : [ arg1>0 && arg1P_5>-1 && -arg1P_5+arg1<=0 ], cost: NONTERM 6: __init -> f1_0_main_New : arg1'=arg1P_7, arg2'=arg2P_7, arg3'=arg3P_7, arg4'=arg4P_7, [], cost: 1 Chained accelerated rules (with incoming rules): Start location: __init 0: f1_0_main_New -> f909_0_main_GE : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=1, arg4'=arg2, [ arg1P_1<=arg1 && arg2>-1 && -1+arg2P_1<=arg1 && arg1>0 && arg1P_1>0 && arg2P_1>1 ], cost: 1 14: f1_0_main_New -> f909_0_main_GE : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=5, arg4'=arg2, [ arg1>0 && arg2>3 && arg1P_6>0 && arg2P_6>6 && arg1P_6<=arg1 ], cost: 2 15: f1_0_main_New -> f909_0_main_GE : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=1+4*k, arg4'=arg2, [ arg2>-1 && arg1>0 && arg1P_6>0 && arg2P_6>6 && arg1P_6-arg2P_6<=0 && k>=1 && arg2>-1+4*k && arg1P_6<=arg1 ], cost: 1+k 1: f909_0_main_GE -> f1058_0_size_NULL : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg3P_2, arg4'=arg4P_2, [ arg1>0 && arg4<=arg3 && arg2>0 && arg1P_2>-1 ], cost: 1 16: f909_0_main_GE -> f1058_0_size_NULL : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, [ arg1>0 && arg4<=arg3 && arg2>0 && arg1P_4>-1 ], cost: 2 17: f909_0_main_GE -> [6] : [ arg1>0 && arg4<=arg3 && arg2>0 ], cost: NONTERM 18: f909_0_main_GE -> [6] : [ arg1>0 && arg4<=arg3 && arg2>0 ], cost: NONTERM 2: f1058_0_size_NULL -> f1097_0_outputList_NULL : arg1'=arg1P_3, arg2'=arg2P_3, arg3'=arg3P_3, arg4'=arg4P_3, [ arg1>-1 && arg1P_3>-1 ], cost: 1 19: f1058_0_size_NULL -> f1097_0_outputList_NULL : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, arg4'=arg4P_5, [ arg1>-1 && arg1P_5>-1 ], cost: 2 20: f1058_0_size_NULL -> [7] : [ arg1>-1 ], cost: NONTERM 21: f1058_0_size_NULL -> [7] : [ arg1>-1 ], cost: NONTERM 6: __init -> f1_0_main_New : arg1'=arg1P_7, arg2'=arg2P_7, arg3'=arg3P_7, arg4'=arg4P_7, [], cost: 1 Removed unreachable locations (and leaf rules with constant cost): Start location: __init 0: f1_0_main_New -> f909_0_main_GE : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=1, arg4'=arg2, [ arg1P_1<=arg1 && arg2>-1 && -1+arg2P_1<=arg1 && arg1>0 && arg1P_1>0 && arg2P_1>1 ], cost: 1 14: f1_0_main_New -> f909_0_main_GE : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=5, arg4'=arg2, [ arg1>0 && arg2>3 && arg1P_6>0 && arg2P_6>6 && arg1P_6<=arg1 ], cost: 2 15: f1_0_main_New -> f909_0_main_GE : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=1+4*k, arg4'=arg2, [ arg2>-1 && arg1>0 && arg1P_6>0 && arg2P_6>6 && arg1P_6-arg2P_6<=0 && k>=1 && arg2>-1+4*k && arg1P_6<=arg1 ], cost: 1+k 1: f909_0_main_GE -> f1058_0_size_NULL : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg3P_2, arg4'=arg4P_2, [ arg1>0 && arg4<=arg3 && arg2>0 && arg1P_2>-1 ], cost: 1 16: f909_0_main_GE -> f1058_0_size_NULL : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, [ arg1>0 && arg4<=arg3 && arg2>0 && arg1P_4>-1 ], cost: 2 17: f909_0_main_GE -> [6] : [ arg1>0 && arg4<=arg3 && arg2>0 ], cost: NONTERM 18: f909_0_main_GE -> [6] : [ arg1>0 && arg4<=arg3 && arg2>0 ], cost: NONTERM 20: f1058_0_size_NULL -> [7] : [ arg1>-1 ], cost: NONTERM 21: f1058_0_size_NULL -> [7] : [ arg1>-1 ], cost: NONTERM 6: __init -> f1_0_main_New : arg1'=arg1P_7, arg2'=arg2P_7, arg3'=arg3P_7, arg4'=arg4P_7, [], cost: 1 Eliminated locations (on tree-shaped paths): Start location: __init 17: f909_0_main_GE -> [6] : [ arg1>0 && arg4<=arg3 && arg2>0 ], cost: NONTERM 18: f909_0_main_GE -> [6] : [ arg1>0 && arg4<=arg3 && arg2>0 ], cost: NONTERM 25: f909_0_main_GE -> [7] : [ arg1>0 && arg4<=arg3 && arg2>0 && arg1P_2>-1 ], cost: NONTERM 26: f909_0_main_GE -> [7] : [ arg1>0 && arg4<=arg3 && arg2>0 && arg1P_2>-1 ], cost: NONTERM 27: f909_0_main_GE -> [7] : [ arg1>0 && arg4<=arg3 && arg2>0 && arg1P_4>-1 ], cost: NONTERM 28: f909_0_main_GE -> [7] : [ arg1>0 && arg4<=arg3 && arg2>0 && arg1P_4>-1 ], cost: NONTERM 22: __init -> f909_0_main_GE : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=1, arg4'=arg2P_7, [ arg1P_1<=arg1P_7 && arg2P_7>-1 && -1+arg2P_1<=arg1P_7 && arg1P_7>0 && arg1P_1>0 && arg2P_1>1 ], cost: 2 23: __init -> f909_0_main_GE : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=5, arg4'=arg2P_7, [ arg1P_7>0 && arg2P_7>3 && arg1P_6>0 && arg2P_6>6 && arg1P_6<=arg1P_7 ], cost: 3 24: __init -> f909_0_main_GE : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=1+4*k, arg4'=arg2P_7, [ arg2P_7>-1 && arg1P_7>0 && arg1P_6>0 && arg2P_6>6 && arg1P_6-arg2P_6<=0 && k>=1 && arg2P_7>-1+4*k && arg1P_6<=arg1P_7 ], cost: 2+k Merged rules: Start location: __init 29: f909_0_main_GE -> [6] : [ arg1>0 && arg4<=arg3 && arg2>0 ], cost: NONTERM 30: f909_0_main_GE -> [7] : [ arg1>0 && arg4<=arg3 && arg2>0 && arg1P_2>-1 ], cost: NONTERM 31: f909_0_main_GE -> [7] : [ arg1>0 && arg4<=arg3 && arg2>0 && arg1P_4>-1 ], cost: NONTERM 22: __init -> f909_0_main_GE : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=1, arg4'=arg2P_7, [ arg1P_1<=arg1P_7 && arg2P_7>-1 && -1+arg2P_1<=arg1P_7 && arg1P_7>0 && arg1P_1>0 && arg2P_1>1 ], cost: 2 23: __init -> f909_0_main_GE : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=5, arg4'=arg2P_7, [ arg1P_7>0 && arg2P_7>3 && arg1P_6>0 && arg2P_6>6 && arg1P_6<=arg1P_7 ], cost: 3 24: __init -> f909_0_main_GE : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=1+4*k, arg4'=arg2P_7, [ arg2P_7>-1 && arg1P_7>0 && arg1P_6>0 && arg2P_6>6 && arg1P_6-arg2P_6<=0 && k>=1 && arg2P_7>-1+4*k && arg1P_6<=arg1P_7 ], cost: 2+k Eliminated locations (on tree-shaped paths): Start location: __init 32: __init -> [6] : [ arg1P_1<=arg1P_7 && arg2P_7>-1 && -1+arg2P_1<=arg1P_7 && arg1P_7>0 && arg1P_1>0 && arg2P_1>1 && arg2P_7<=1 ], cost: NONTERM 33: __init -> [7] : [ arg1P_1<=arg1P_7 && arg2P_7>-1 && -1+arg2P_1<=arg1P_7 && arg1P_7>0 && arg1P_1>0 && arg2P_1>1 && arg2P_7<=1 && arg1P_2>-1 ], cost: NONTERM 34: __init -> [7] : [ arg1P_1<=arg1P_7 && arg2P_7>-1 && -1+arg2P_1<=arg1P_7 && arg1P_7>0 && arg1P_1>0 && arg2P_1>1 && arg2P_7<=1 && arg1P_4>-1 ], cost: NONTERM 35: __init -> [6] : [ arg1P_7>0 && arg2P_7>3 && arg1P_6>0 && arg2P_6>6 && arg1P_6<=arg1P_7 && arg2P_7<=5 ], cost: NONTERM 36: __init -> [7] : [ arg1P_7>0 && arg2P_7>3 && arg1P_6>0 && arg2P_6>6 && arg1P_6<=arg1P_7 && arg2P_7<=5 && arg1P_2>-1 ], cost: NONTERM 37: __init -> [7] : [ arg1P_7>0 && arg2P_7>3 && arg1P_6>0 && arg2P_6>6 && arg1P_6<=arg1P_7 && arg2P_7<=5 && arg1P_4>-1 ], cost: NONTERM 38: __init -> [6] : [ arg2P_7>-1 && arg1P_7>0 && arg1P_6>0 && arg2P_6>6 && arg1P_6-arg2P_6<=0 && k>=1 && arg2P_7>-1+4*k && arg1P_6<=arg1P_7 && arg2P_7<=1+4*k ], cost: NONTERM 39: __init -> [7] : [ arg2P_7>-1 && arg1P_7>0 && arg1P_6>0 && arg2P_6>6 && arg1P_6-arg2P_6<=0 && k>=1 && arg2P_7>-1+4*k && arg1P_6<=arg1P_7 && arg2P_7<=1+4*k && arg1P_2>-1 ], cost: NONTERM 40: __init -> [7] : [ arg2P_7>-1 && arg1P_7>0 && arg1P_6>0 && arg2P_6>6 && arg1P_6-arg2P_6<=0 && k>=1 && arg2P_7>-1+4*k && arg1P_6<=arg1P_7 && arg2P_7<=1+4*k && arg1P_4>-1 ], cost: NONTERM ### Computing asymptotic complexity ### Fully simplified ITS problem Start location: __init 32: __init -> [6] : [ arg1P_1<=arg1P_7 && arg2P_7>-1 && -1+arg2P_1<=arg1P_7 && arg1P_7>0 && arg1P_1>0 && arg2P_1>1 && arg2P_7<=1 ], cost: NONTERM 33: __init -> [7] : [ arg1P_1<=arg1P_7 && arg2P_7>-1 && -1+arg2P_1<=arg1P_7 && arg1P_7>0 && arg1P_1>0 && arg2P_1>1 && arg2P_7<=1 && arg1P_2>-1 ], cost: NONTERM 34: __init -> [7] : [ arg1P_1<=arg1P_7 && arg2P_7>-1 && -1+arg2P_1<=arg1P_7 && arg1P_7>0 && arg1P_1>0 && arg2P_1>1 && arg2P_7<=1 && arg1P_4>-1 ], cost: NONTERM 35: __init -> [6] : [ arg1P_7>0 && arg2P_7>3 && arg1P_6>0 && arg2P_6>6 && arg1P_6<=arg1P_7 && arg2P_7<=5 ], cost: NONTERM 36: __init -> [7] : [ arg1P_7>0 && arg2P_7>3 && arg1P_6>0 && arg2P_6>6 && arg1P_6<=arg1P_7 && arg2P_7<=5 && arg1P_2>-1 ], cost: NONTERM 37: __init -> [7] : [ arg1P_7>0 && arg2P_7>3 && arg1P_6>0 && arg2P_6>6 && arg1P_6<=arg1P_7 && arg2P_7<=5 && arg1P_4>-1 ], cost: NONTERM 38: __init -> [6] : [ arg2P_7>-1 && arg1P_7>0 && arg1P_6>0 && arg2P_6>6 && arg1P_6-arg2P_6<=0 && k>=1 && arg2P_7>-1+4*k && arg1P_6<=arg1P_7 && arg2P_7<=1+4*k ], cost: NONTERM 39: __init -> [7] : [ arg2P_7>-1 && arg1P_7>0 && arg1P_6>0 && arg2P_6>6 && arg1P_6-arg2P_6<=0 && k>=1 && arg2P_7>-1+4*k && arg1P_6<=arg1P_7 && arg2P_7<=1+4*k && arg1P_2>-1 ], cost: NONTERM 40: __init -> [7] : [ arg2P_7>-1 && arg1P_7>0 && arg1P_6>0 && arg2P_6>6 && arg1P_6-arg2P_6<=0 && k>=1 && arg2P_7>-1+4*k && arg1P_6<=arg1P_7 && arg2P_7<=1+4*k && arg1P_4>-1 ], cost: NONTERM Computing asymptotic complexity for rule 35 Simplified the guard: 35: __init -> [6] : [ arg2P_7>3 && arg1P_6>0 && arg2P_6>6 && arg1P_6<=arg1P_7 && arg2P_7<=5 ], cost: NONTERM 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: [ arg2P_7>3 && arg1P_6>0 && arg2P_6>6 && arg1P_6<=arg1P_7 && arg2P_7<=5 ] NO