WORST_CASE(Omega(1),?) ### Pre-processing the ITS problem ### Initial linear ITS problem Start location: __init 0: f1_0_main_Load -> f127_0_average_LE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg1P_1>-1 && arg2>1 && arg2P_1>-1 && arg1>0 ], cost: 1 1: f127_0_average_LE -> f127_0_average_LE : arg1'=arg1P_2, arg2'=arg2P_2, [ arg2>0 && arg1>-1 && 1+arg1>arg1 && -1+arg2 f127_0_average_LE : arg1'=arg1P_3, arg2'=arg2P_3, [ arg1>2 && -2+arg1 f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_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, [], cost: 1 Simplified all rules, resulting in: Start location: __init 0: f1_0_main_Load -> f127_0_average_LE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg1P_1>-1 && arg2>1 && arg2P_1>-1 && arg1>0 ], cost: 1 1: f127_0_average_LE -> f127_0_average_LE : arg1'=1+arg1, arg2'=-1+arg2, [ arg2>0 && arg1>-1 ], cost: 1 2: f127_0_average_LE -> f127_0_average_LE : arg1'=-2+arg1, arg2'=1, [ arg1>2 && 0==arg2 ], cost: 1 3: __init -> f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, [], cost: 1 ### Simplification by acceleration and chaining ### Accelerating simple loops of location 1. Accelerating the following rules: 1: f127_0_average_LE -> f127_0_average_LE : arg1'=1+arg1, arg2'=-1+arg2, [ arg2>0 && arg1>-1 ], cost: 1 2: f127_0_average_LE -> f127_0_average_LE : arg1'=-2+arg1, arg2'=1, [ arg1>2 && 0==arg2 ], cost: 1 Accelerated rule 1 with backward acceleration, yielding the new rule 4. Failed to prove monotonicity of the guard of rule 2. [accelerate] Nesting with 2 inner and 2 outer candidates Nested simple loops 1 (outer loop) and 2 (inner loop) with Rule(1 | 0==arg2, -2+arg1>=1, 3>2, | -4+2*arg1 || 1 | 0=2, 1=0, ), resulting in the new rules: 5, 6. Removing the simple loops: 1. Accelerated all simple loops using metering functions (where possible): Start location: __init 0: f1_0_main_Load -> f127_0_average_LE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg1P_1>-1 && arg2>1 && arg2P_1>-1 && arg1>0 ], cost: 1 2: f127_0_average_LE -> f127_0_average_LE : arg1'=-2+arg1, arg2'=1, [ arg1>2 && 0==arg2 ], cost: 1 4: f127_0_average_LE -> f127_0_average_LE : arg1'=arg2+arg1, arg2'=0, [ arg1>-1 && arg2>=0 ], cost: arg2 5: f127_0_average_LE -> f127_0_average_LE : arg1'=2, arg2'=0, [ 0==arg2 && -2+arg1>=1 ], cost: -4+2*arg1 6: f127_0_average_LE -> f127_0_average_LE : arg1'=2, arg2'=0, [ 0==-1+arg2 && -1+arg1>=1 ], cost: -1+2*arg1 3: __init -> f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, [], cost: 1 Chained accelerated rules (with incoming rules): Start location: __init 0: f1_0_main_Load -> f127_0_average_LE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg1P_1>-1 && arg2>1 && arg2P_1>-1 && arg1>0 ], cost: 1 7: f1_0_main_Load -> f127_0_average_LE : arg1'=-2+arg1P_1, arg2'=1, [ arg2>1 && arg1>0 && arg1P_1>2 ], cost: 2 8: f1_0_main_Load -> f127_0_average_LE : arg1'=arg1P_1+arg2P_1, arg2'=0, [ arg1P_1>-1 && arg2>1 && arg2P_1>-1 && arg1>0 ], cost: 1+arg2P_1 9: f1_0_main_Load -> f127_0_average_LE : arg1'=2, arg2'=0, [ arg2>1 && arg1>0 && -2+arg1P_1>=1 ], cost: -3+2*arg1P_1 10: f1_0_main_Load -> f127_0_average_LE : arg1'=2, arg2'=0, [ arg2>1 && arg1>0 && -1+arg1P_1>=1 ], cost: 2*arg1P_1 3: __init -> f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, [], cost: 1 Removed unreachable locations (and leaf rules with constant cost): Start location: __init 8: f1_0_main_Load -> f127_0_average_LE : arg1'=arg1P_1+arg2P_1, arg2'=0, [ arg1P_1>-1 && arg2>1 && arg2P_1>-1 && arg1>0 ], cost: 1+arg2P_1 9: f1_0_main_Load -> f127_0_average_LE : arg1'=2, arg2'=0, [ arg2>1 && arg1>0 && -2+arg1P_1>=1 ], cost: -3+2*arg1P_1 10: f1_0_main_Load -> f127_0_average_LE : arg1'=2, arg2'=0, [ arg2>1 && arg1>0 && -1+arg1P_1>=1 ], cost: 2*arg1P_1 3: __init -> f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, [], cost: 1 Eliminated locations (on tree-shaped paths): Start location: __init 11: __init -> f127_0_average_LE : arg1'=arg1P_1+arg2P_1, arg2'=0, [ arg1P_1>-1 && arg2P_4>1 && arg2P_1>-1 && arg1P_4>0 ], cost: 2+arg2P_1 12: __init -> f127_0_average_LE : arg1'=2, arg2'=0, [ arg2P_4>1 && arg1P_4>0 && -2+arg1P_1>=1 ], cost: -2+2*arg1P_1 13: __init -> f127_0_average_LE : arg1'=2, arg2'=0, [ arg2P_4>1 && arg1P_4>0 && -1+arg1P_1>=1 ], cost: 1+2*arg1P_1 ### Computing asymptotic complexity ### Fully simplified ITS problem Start location: __init 11: __init -> f127_0_average_LE : arg1'=arg1P_1+arg2P_1, arg2'=0, [ arg1P_1>-1 && arg2P_4>1 && arg2P_1>-1 && arg1P_4>0 ], cost: 2+arg2P_1 12: __init -> f127_0_average_LE : arg1'=2, arg2'=0, [ arg2P_4>1 && arg1P_4>0 && -2+arg1P_1>=1 ], cost: -2+2*arg1P_1 13: __init -> f127_0_average_LE : arg1'=2, arg2'=0, [ arg2P_4>1 && arg1P_4>0 && -1+arg1P_1>=1 ], cost: 1+2*arg1P_1 Computing asymptotic complexity for rule 12 Resulting cost 0 has complexity: Unknown Computing asymptotic complexity for rule 13 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),?)