WORST_CASE(Omega(1),?) ### Pre-processing the ITS problem ### Initial linear ITS problem Start location: __init 0: f1_0_main_Load -> f148_0_main_LE : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=arg3P_1, [ arg1P_1>-1 && arg2>-1 && arg2P_1>-1 && arg1>0 && arg1P_1+arg2P_1==arg3P_1 ], cost: 1 1: f148_0_main_LE -> f148_0_main_LE : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg3P_2, [ arg1>0 && arg3>0 && arg2>-1 && -1+arg1==arg1P_2 && arg2==arg2P_2 && -1+arg2+arg1==arg3P_2 ], cost: 1 2: f148_0_main_LE -> f148_0_main_LE : arg1'=arg1P_3, arg2'=arg2P_3, arg3'=arg3P_3, [ arg3>0 && 0==arg1 && 0==arg2 && 0==arg1P_3 && 0==arg2P_3 && 0==arg3P_3 ], cost: 1 3: f148_0_main_LE -> f148_0_main_LE : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, [ arg3>0 && arg2>0 && 0==arg1 && 0==arg1P_4 && -1+arg2==arg2P_4 && -1+arg2==arg3P_4 ], cost: 1 4: __init -> f1_0_main_Load : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, [], cost: 1 Checking for constant complexity: The following rule is satisfiable with cost >= 1, yielding constant complexity: 4: __init -> f1_0_main_Load : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, [], cost: 1 Simplified all rules, resulting in: Start location: __init 0: f1_0_main_Load -> f148_0_main_LE : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=arg1P_1+arg2P_1, [ arg1P_1>-1 && arg2>-1 && arg2P_1>-1 && arg1>0 ], cost: 1 1: f148_0_main_LE -> f148_0_main_LE : arg1'=-1+arg1, arg3'=-1+arg2+arg1, [ arg1>0 && arg3>0 && arg2>-1 ], cost: 1 2: f148_0_main_LE -> f148_0_main_LE : arg1'=0, arg2'=0, arg3'=0, [ arg3>0 && 0==arg1 && 0==arg2 ], cost: 1 3: f148_0_main_LE -> f148_0_main_LE : arg1'=0, arg2'=-1+arg2, arg3'=-1+arg2, [ arg3>0 && arg2>0 && 0==arg1 ], cost: 1 4: __init -> f1_0_main_Load : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, [], cost: 1 ### Simplification by acceleration and chaining ### Accelerating simple loops of location 1. Accelerating the following rules: 1: f148_0_main_LE -> f148_0_main_LE : arg1'=-1+arg1, arg3'=-1+arg2+arg1, [ arg1>0 && arg3>0 && arg2>-1 ], cost: 1 2: f148_0_main_LE -> f148_0_main_LE : arg1'=0, arg2'=0, arg3'=0, [ arg3>0 && 0==arg1 && 0==arg2 ], cost: 1 3: f148_0_main_LE -> f148_0_main_LE : arg1'=0, arg2'=-1+arg2, arg3'=-1+arg2, [ arg3>0 && arg2>0 && 0==arg1 ], cost: 1 [test] deduced invariant -arg3+arg1<=0 Accelerated rule 1 with backward acceleration, yielding the new rule 5. Accelerated rule 1 with backward acceleration, yielding the new rule 6. Failed to prove monotonicity of the guard of rule 2. Failed to prove monotonicity of the guard of rule 3. [accelerate] Nesting with 4 inner and 3 outer candidates Accelerated all simple loops using metering functions (where possible): Start location: __init 0: f1_0_main_Load -> f148_0_main_LE : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=arg1P_1+arg2P_1, [ arg1P_1>-1 && arg2>-1 && arg2P_1>-1 && arg1>0 ], cost: 1 1: f148_0_main_LE -> f148_0_main_LE : arg1'=-1+arg1, arg3'=-1+arg2+arg1, [ arg1>0 && arg3>0 && arg2>-1 ], cost: 1 2: f148_0_main_LE -> f148_0_main_LE : arg1'=0, arg2'=0, arg3'=0, [ arg3>0 && 0==arg1 && 0==arg2 ], cost: 1 3: f148_0_main_LE -> f148_0_main_LE : arg1'=0, arg2'=-1+arg2, arg3'=-1+arg2, [ arg3>0 && arg2>0 && 0==arg1 ], cost: 1 5: f148_0_main_LE -> f148_0_main_LE : arg1'=0, arg3'=arg2, [ arg2>-1 && -arg3+arg1<=0 && arg1>=1 ], cost: arg1 6: f148_0_main_LE -> f148_0_main_LE : arg1'=-arg2, arg3'=0, [ arg2>-1 && -arg3+arg1<=0 && arg2+arg1>=1 && 1-arg2>0 ], cost: arg2+arg1 4: __init -> f1_0_main_Load : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, [], cost: 1 Chained accelerated rules (with incoming rules): Start location: __init 0: f1_0_main_Load -> f148_0_main_LE : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=arg1P_1+arg2P_1, [ arg1P_1>-1 && arg2>-1 && arg2P_1>-1 && arg1>0 ], cost: 1 7: f1_0_main_Load -> f148_0_main_LE : arg1'=-1+arg1P_1, arg2'=arg2P_1, arg3'=-1+arg1P_1+arg2P_1, [ arg2>-1 && arg2P_1>-1 && arg1>0 && arg1P_1>0 && arg1P_1+arg2P_1>0 ], cost: 2 8: f1_0_main_Load -> f148_0_main_LE : arg1'=0, arg2'=-1+arg2P_1, arg3'=-1+arg2P_1, [ arg2>-1 && arg1>0 && arg2P_1>0 ], cost: 2 9: f1_0_main_Load -> f148_0_main_LE : arg1'=0, arg2'=arg2P_1, arg3'=arg2P_1, [ arg2>-1 && arg2P_1>-1 && arg1>0 && arg1P_1>=1 ], cost: 1+arg1P_1 10: f1_0_main_Load -> f148_0_main_LE : arg1'=0, arg2'=0, arg3'=0, [ arg2>-1 && arg1>0 && arg1P_1>=1 ], cost: 1+arg1P_1 4: __init -> f1_0_main_Load : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, [], cost: 1 Removed unreachable locations (and leaf rules with constant cost): Start location: __init 9: f1_0_main_Load -> f148_0_main_LE : arg1'=0, arg2'=arg2P_1, arg3'=arg2P_1, [ arg2>-1 && arg2P_1>-1 && arg1>0 && arg1P_1>=1 ], cost: 1+arg1P_1 10: f1_0_main_Load -> f148_0_main_LE : arg1'=0, arg2'=0, arg3'=0, [ arg2>-1 && arg1>0 && arg1P_1>=1 ], cost: 1+arg1P_1 4: __init -> f1_0_main_Load : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, [], cost: 1 Eliminated locations (on tree-shaped paths): Start location: __init 11: __init -> f148_0_main_LE : arg1'=0, arg2'=arg2P_1, arg3'=arg2P_1, [ arg2P_5>-1 && arg2P_1>-1 && arg1P_5>0 && arg1P_1>=1 ], cost: 2+arg1P_1 12: __init -> f148_0_main_LE : arg1'=0, arg2'=0, arg3'=0, [ arg2P_5>-1 && arg1P_5>0 && arg1P_1>=1 ], cost: 2+arg1P_1 ### Computing asymptotic complexity ### Fully simplified ITS problem Start location: __init 11: __init -> f148_0_main_LE : arg1'=0, arg2'=arg2P_1, arg3'=arg2P_1, [ arg2P_5>-1 && arg2P_1>-1 && arg1P_5>0 && arg1P_1>=1 ], cost: 2+arg1P_1 12: __init -> f148_0_main_LE : arg1'=0, arg2'=0, arg3'=0, [ arg2P_5>-1 && arg1P_5>0 && arg1P_1>=1 ], cost: 2+arg1P_1 Computing asymptotic complexity for rule 12 Resulting cost 0 has complexity: Unknown Computing asymptotic complexity for rule 11 Resulting cost 0 has complexity: Unknown Obtained the following overall complexity (w.r.t. the length of the input n): Complexity: Constant Cpx degree: 0 Solved cost: 1 Rule cost: 1 Rule guard: [] WORST_CASE(Omega(1),?)