NO ### Pre-processing the ITS problem ### Initial linear ITS problem Start location: __init 0: f1_0_main_Load -> f104_0_factorial_EQ : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=arg3P_1, arg4'=arg4P_1, arg5'=arg5P_1, [ arg1P_1<=arg1 && arg2>-1 && arg1>0 && arg1P_1>0 && 1==arg2P_1 && 1==arg3P_1 && 1==arg4P_1 && arg2==arg5P_1 ], cost: 1 1: f104_0_factorial_EQ -> f104_0_factorial_EQ : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg3P_2, arg4'=arg4P_2, arg5'=arg5P_2, [ arg5>arg3 && arg2>0 && arg3>0 && arg1P_2<=arg1 && arg1>0 && arg1P_2>0 && arg3==arg4 && 1+arg2==arg2P_2 && arg2*arg3==arg3P_2 && arg2*arg3==arg4P_2 && arg5==arg5P_2 ], cost: 1 2: f104_0_factorial_EQ -> f104_0_factorial_EQ : arg1'=arg1P_3, arg2'=arg2P_3, arg3'=arg3P_3, arg4'=arg4P_3, arg5'=arg5P_3, [ arg50 && arg3>0 && arg1P_3<=arg1 && arg1>0 && arg1P_3>0 && arg3==arg4 && 1+arg2==arg2P_3 && arg2*arg3==arg3P_3 && arg2*arg3==arg4P_3 && arg5==arg5P_3 ], cost: 1 3: __init -> f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, arg5'=arg5P_4, [], cost: 1 Checking for constant complexity: The following rule is satisfiable with cost >= 1, yielding constant complexity: 3: __init -> f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, arg5'=arg5P_4, [], cost: 1 Simplified all rules, resulting in: Start location: __init 0: f1_0_main_Load -> f104_0_factorial_EQ : arg1'=arg1P_1, arg2'=1, arg3'=1, arg4'=1, arg5'=arg2, [ arg1P_1<=arg1 && arg2>-1 && arg1>0 && arg1P_1>0 ], cost: 1 1: f104_0_factorial_EQ -> f104_0_factorial_EQ : arg1'=arg1P_2, arg2'=1+arg2, arg3'=arg2*arg3, arg4'=arg2*arg3, [ arg5>arg3 && arg2>0 && arg3>0 && arg1P_2<=arg1 && arg1>0 && arg1P_2>0 && arg3==arg4 ], cost: 1 2: f104_0_factorial_EQ -> f104_0_factorial_EQ : arg1'=arg1P_3, arg2'=1+arg2, arg3'=arg2*arg3, arg4'=arg2*arg3, [ arg50 && arg3>0 && arg1P_3<=arg1 && arg1>0 && arg1P_3>0 && arg3==arg4 ], cost: 1 3: __init -> f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, arg5'=arg5P_4, [], cost: 1 ### Simplification by acceleration and chaining ### Accelerating simple loops of location 1. Accelerating the following rules: 1: f104_0_factorial_EQ -> f104_0_factorial_EQ : arg1'=arg1P_2, arg2'=1+arg2, arg3'=arg2*arg3, arg4'=arg2*arg3, [ arg5>arg3 && arg2>0 && arg3>0 && arg1P_2<=arg1 && arg1>0 && arg1P_2>0 && arg3==arg4 ], cost: 1 2: f104_0_factorial_EQ -> f104_0_factorial_EQ : arg1'=arg1P_3, arg2'=1+arg2, arg3'=arg2*arg3, arg4'=arg2*arg3, [ arg50 && arg3>0 && arg1P_3<=arg1 && arg1>0 && arg1P_3>0 && arg3==arg4 ], cost: 1 Found no closed form for 1. Accelerated rule 2 with non-termination, yielding the new rule 4. [accelerate] Nesting with 0 inner and 1 outer candidates Removing the simple loops: 2. Accelerated all simple loops using metering functions (where possible): Start location: __init 0: f1_0_main_Load -> f104_0_factorial_EQ : arg1'=arg1P_1, arg2'=1, arg3'=1, arg4'=1, arg5'=arg2, [ arg1P_1<=arg1 && arg2>-1 && arg1>0 && arg1P_1>0 ], cost: 1 1: f104_0_factorial_EQ -> f104_0_factorial_EQ : arg1'=arg1P_2, arg2'=1+arg2, arg3'=arg2*arg3, arg4'=arg2*arg3, [ arg5>arg3 && arg2>0 && arg3>0 && arg1P_2<=arg1 && arg1>0 && arg1P_2>0 && arg3==arg4 ], cost: 1 4: f104_0_factorial_EQ -> [3] : [ arg50 && arg3>0 && arg1P_3<=arg1 && arg1>0 && arg1P_3>0 && arg3==arg4 ], cost: NONTERM 3: __init -> f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, arg5'=arg5P_4, [], cost: 1 Chained accelerated rules (with incoming rules): Start location: __init 0: f1_0_main_Load -> f104_0_factorial_EQ : arg1'=arg1P_1, arg2'=1, arg3'=1, arg4'=1, arg5'=arg2, [ arg1P_1<=arg1 && arg2>-1 && arg1>0 && arg1P_1>0 ], cost: 1 5: f1_0_main_Load -> f104_0_factorial_EQ : arg1'=arg1P_2, arg2'=2, arg3'=1, arg4'=1, arg5'=arg2, [ arg1>0 && arg2>1 && arg1P_2>0 && arg1P_2<=arg1 ], cost: 2 6: f1_0_main_Load -> [3] : [ -arg2==0 && arg1>0 ], cost: NONTERM 3: __init -> f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, arg5'=arg5P_4, [], cost: 1 Removed unreachable locations (and leaf rules with constant cost): Start location: __init 6: f1_0_main_Load -> [3] : [ -arg2==0 && arg1>0 ], cost: NONTERM 3: __init -> f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, arg5'=arg5P_4, [], cost: 1 Eliminated locations (on linear paths): Start location: __init 7: __init -> [3] : [ -arg2P_4==0 && arg1P_4>0 ], cost: NONTERM ### Computing asymptotic complexity ### Fully simplified ITS problem Start location: __init 7: __init -> [3] : [ -arg2P_4==0 && arg1P_4>0 ], cost: NONTERM Computing asymptotic complexity for rule 7 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_4==0 && arg1P_4>0 ] NO