WORST_CASE(Omega(1),?) ### Pre-processing the ITS problem ### Initial linear ITS problem Start location: __init 0: f1_0_main_Load -> f80_0_create_LE : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=arg3P_1, arg4'=arg4P_1, [ arg1P_1<=arg1 && arg2>-1 && arg1>0 && arg1P_1>0 && -1+arg2==arg2P_1 && 0==arg3P_1 && arg2==arg4P_1 ], cost: 1 1: f80_0_create_LE -> f108_0_main_ArrayAccess : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg3P_2, arg4'=arg4P_2, [ arg2<1 && arg3>0 && arg2P_2>arg3 && arg1P_2<=arg1 && arg1>0 && arg1P_2>0 && arg4==arg3P_2 ], cost: 1 2: f80_0_create_LE -> f108_0_main_ArrayAccess : arg1'=arg1P_3, arg2'=arg2P_3, arg3'=arg3P_3, arg4'=arg4P_3, [ arg1>=arg1P_3 && arg2<1 && arg1>0 && arg1P_3>0 && 1==arg2P_3 && arg4==arg3P_3 ], cost: 1 3: f80_0_create_LE -> f80_0_create_LE : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, [ arg1P_4<=arg1 && arg2>0 && arg1>0 && arg1P_4>0 && -1+arg2==arg2P_4 && arg4==arg4P_4 ], cost: 1 4: f108_0_main_ArrayAccess -> f147_0_get_LE : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, arg4'=arg4P_5, [ arg3>0 && x23_1>-1 && arg1>0 && -1+x23_1==arg1P_5 && arg2==arg2P_5 ], cost: 1 5: f147_0_get_LE -> f147_0_get_LE : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [ arg2>-1 && x27_1>0 && x27_10 && x27_1 f147_0_get_LE : arg1'=arg1P_7, arg2'=arg2P_7, arg3'=arg3P_7, arg4'=arg4P_7, [ arg1>0 && x30_1-1 && -1+arg1==arg1P_7 && 1==arg2P_7 ], cost: 1 7: __init -> f1_0_main_Load : arg1'=arg1P_8, arg2'=arg2P_8, arg3'=arg3P_8, arg4'=arg4P_8, [], cost: 1 Checking for constant complexity: The following rule is satisfiable with cost >= 1, yielding constant complexity: 7: __init -> f1_0_main_Load : arg1'=arg1P_8, arg2'=arg2P_8, arg3'=arg3P_8, arg4'=arg4P_8, [], cost: 1 Simplified all rules, resulting in: Start location: __init 0: f1_0_main_Load -> f80_0_create_LE : arg1'=arg1P_1, arg2'=-1+arg2, arg3'=0, arg4'=arg2, [ arg1P_1<=arg1 && arg2>-1 && arg1>0 && arg1P_1>0 ], cost: 1 1: f80_0_create_LE -> f108_0_main_ArrayAccess : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg4, arg4'=arg4P_2, [ arg2<1 && arg3>0 && arg2P_2>arg3 && arg1P_2<=arg1 && arg1>0 && arg1P_2>0 ], cost: 1 2: f80_0_create_LE -> f108_0_main_ArrayAccess : arg1'=arg1P_3, arg2'=1, arg3'=arg4, arg4'=arg4P_3, [ arg1>=arg1P_3 && arg2<1 && arg1>0 && arg1P_3>0 ], cost: 1 3: f80_0_create_LE -> f80_0_create_LE : arg1'=arg1P_4, arg2'=-1+arg2, arg3'=arg3P_4, [ arg1P_4<=arg1 && arg2>0 && arg1>0 && arg1P_4>0 ], cost: 1 4: f108_0_main_ArrayAccess -> f147_0_get_LE : arg1'=-1+x23_1, arg3'=arg3P_5, arg4'=arg4P_5, [ arg3>0 && x23_1>-1 && arg1>0 ], cost: 1 5: f147_0_get_LE -> f147_0_get_LE : arg1'=-1+arg1, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [ arg1>0 && 1<=-1+arg2 && 1<=-1+arg2P_6 ], cost: 1 6: f147_0_get_LE -> f147_0_get_LE : arg1'=-1+arg1, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ arg1>0 && arg2>-1 ], cost: 1 7: __init -> f1_0_main_Load : arg1'=arg1P_8, arg2'=arg2P_8, arg3'=arg3P_8, arg4'=arg4P_8, [], cost: 1 ### Simplification by acceleration and chaining ### Accelerating simple loops of location 1. Accelerating the following rules: 3: f80_0_create_LE -> f80_0_create_LE : arg1'=arg1P_4, arg2'=-1+arg2, arg3'=arg3P_4, [ arg1P_4<=arg1 && arg2>0 && arg1>0 && arg1P_4>0 ], cost: 1 Accelerated rule 3 with backward acceleration, yielding the new rule 8. [accelerate] Nesting with 1 inner and 1 outer candidates Removing the simple loops: 3. Accelerating simple loops of location 3. Accelerating the following rules: 5: f147_0_get_LE -> f147_0_get_LE : arg1'=-1+arg1, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [ arg1>0 && 1<=-1+arg2 && 1<=-1+arg2P_6 ], cost: 1 6: f147_0_get_LE -> f147_0_get_LE : arg1'=-1+arg1, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ arg1>0 && arg2>-1 ], cost: 1 Accelerated rule 5 with backward acceleration, yielding the new rule 9. Accelerated rule 6 with backward acceleration, yielding the new rule 10. [accelerate] Nesting with 2 inner and 2 outer candidates Removing the simple loops: 5 6. Accelerated all simple loops using metering functions (where possible): Start location: __init 0: f1_0_main_Load -> f80_0_create_LE : arg1'=arg1P_1, arg2'=-1+arg2, arg3'=0, arg4'=arg2, [ arg1P_1<=arg1 && arg2>-1 && arg1>0 && arg1P_1>0 ], cost: 1 1: f80_0_create_LE -> f108_0_main_ArrayAccess : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg4, arg4'=arg4P_2, [ arg2<1 && arg3>0 && arg2P_2>arg3 && arg1P_2<=arg1 && arg1>0 && arg1P_2>0 ], cost: 1 2: f80_0_create_LE -> f108_0_main_ArrayAccess : arg1'=arg1P_3, arg2'=1, arg3'=arg4, arg4'=arg4P_3, [ arg1>=arg1P_3 && arg2<1 && arg1>0 && arg1P_3>0 ], cost: 1 8: f80_0_create_LE -> f80_0_create_LE : arg1'=arg1P_4, arg2'=0, arg3'=arg3P_4, [ arg1P_4<=arg1 && arg1>0 && arg1P_4>0 && arg2>=1 ], cost: arg2 4: f108_0_main_ArrayAccess -> f147_0_get_LE : arg1'=-1+x23_1, arg3'=arg3P_5, arg4'=arg4P_5, [ arg3>0 && x23_1>-1 && arg1>0 ], cost: 1 9: f147_0_get_LE -> f147_0_get_LE : arg1'=0, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [ 1<=-1+arg2 && 1<=-1+arg2P_6 && arg1>=1 ], cost: arg1 10: f147_0_get_LE -> f147_0_get_LE : arg1'=0, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ arg2>-1 && arg1>=1 ], cost: arg1 7: __init -> f1_0_main_Load : arg1'=arg1P_8, arg2'=arg2P_8, arg3'=arg3P_8, arg4'=arg4P_8, [], cost: 1 Chained accelerated rules (with incoming rules): Start location: __init 0: f1_0_main_Load -> f80_0_create_LE : arg1'=arg1P_1, arg2'=-1+arg2, arg3'=0, arg4'=arg2, [ arg1P_1<=arg1 && arg2>-1 && arg1>0 && arg1P_1>0 ], cost: 1 11: f1_0_main_Load -> f80_0_create_LE : arg1'=arg1P_4, arg2'=0, arg3'=arg3P_4, arg4'=arg2, [ arg1>0 && arg1P_4>0 && -1+arg2>=1 && arg1P_4<=arg1 ], cost: arg2 1: f80_0_create_LE -> f108_0_main_ArrayAccess : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg4, arg4'=arg4P_2, [ arg2<1 && arg3>0 && arg2P_2>arg3 && arg1P_2<=arg1 && arg1>0 && arg1P_2>0 ], cost: 1 2: f80_0_create_LE -> f108_0_main_ArrayAccess : arg1'=arg1P_3, arg2'=1, arg3'=arg4, arg4'=arg4P_3, [ arg1>=arg1P_3 && arg2<1 && arg1>0 && arg1P_3>0 ], cost: 1 4: f108_0_main_ArrayAccess -> f147_0_get_LE : arg1'=-1+x23_1, arg3'=arg3P_5, arg4'=arg4P_5, [ arg3>0 && x23_1>-1 && arg1>0 ], cost: 1 12: f108_0_main_ArrayAccess -> f147_0_get_LE : arg1'=0, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [ arg3>0 && arg1>0 && 1<=-1+arg2 && 1<=-1+arg2P_6 && -1+x23_1>=1 ], cost: x23_1 13: f108_0_main_ArrayAccess -> f147_0_get_LE : arg1'=0, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ arg3>0 && arg1>0 && arg2>-1 && -1+x23_1>=1 ], cost: x23_1 7: __init -> f1_0_main_Load : arg1'=arg1P_8, arg2'=arg2P_8, arg3'=arg3P_8, arg4'=arg4P_8, [], cost: 1 Removed unreachable locations (and leaf rules with constant cost): Start location: __init 0: f1_0_main_Load -> f80_0_create_LE : arg1'=arg1P_1, arg2'=-1+arg2, arg3'=0, arg4'=arg2, [ arg1P_1<=arg1 && arg2>-1 && arg1>0 && arg1P_1>0 ], cost: 1 11: f1_0_main_Load -> f80_0_create_LE : arg1'=arg1P_4, arg2'=0, arg3'=arg3P_4, arg4'=arg2, [ arg1>0 && arg1P_4>0 && -1+arg2>=1 && arg1P_4<=arg1 ], cost: arg2 1: f80_0_create_LE -> f108_0_main_ArrayAccess : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg4, arg4'=arg4P_2, [ arg2<1 && arg3>0 && arg2P_2>arg3 && arg1P_2<=arg1 && arg1>0 && arg1P_2>0 ], cost: 1 2: f80_0_create_LE -> f108_0_main_ArrayAccess : arg1'=arg1P_3, arg2'=1, arg3'=arg4, arg4'=arg4P_3, [ arg1>=arg1P_3 && arg2<1 && arg1>0 && arg1P_3>0 ], cost: 1 12: f108_0_main_ArrayAccess -> f147_0_get_LE : arg1'=0, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [ arg3>0 && arg1>0 && 1<=-1+arg2 && 1<=-1+arg2P_6 && -1+x23_1>=1 ], cost: x23_1 13: f108_0_main_ArrayAccess -> f147_0_get_LE : arg1'=0, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ arg3>0 && arg1>0 && arg2>-1 && -1+x23_1>=1 ], cost: x23_1 7: __init -> f1_0_main_Load : arg1'=arg1P_8, arg2'=arg2P_8, arg3'=arg3P_8, arg4'=arg4P_8, [], cost: 1 Eliminated locations (on tree-shaped paths): Start location: __init 16: f80_0_create_LE -> f147_0_get_LE : arg1'=0, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [ arg2<1 && arg3>0 && arg2P_2>arg3 && arg1P_2<=arg1 && arg1>0 && arg1P_2>0 && arg4>0 && 1<=-1+arg2P_2 && 1<=-1+arg2P_6 && -1+x23_1>=1 ], cost: 1+x23_1 17: f80_0_create_LE -> f147_0_get_LE : arg1'=0, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ arg2<1 && arg3>0 && arg2P_2>arg3 && arg1P_2<=arg1 && arg1>0 && arg1P_2>0 && arg4>0 && arg2P_2>-1 && -1+x23_1>=1 ], cost: 1+x23_1 18: f80_0_create_LE -> f147_0_get_LE : arg1'=0, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ arg1>=arg1P_3 && arg2<1 && arg1>0 && arg1P_3>0 && arg4>0 && -1+x23_1>=1 ], cost: 1+x23_1 14: __init -> f80_0_create_LE : arg1'=arg1P_1, arg2'=-1+arg2P_8, arg3'=0, arg4'=arg2P_8, [ arg1P_1<=arg1P_8 && arg2P_8>-1 && arg1P_8>0 && arg1P_1>0 ], cost: 2 15: __init -> f80_0_create_LE : arg1'=arg1P_4, arg2'=0, arg3'=arg3P_4, arg4'=arg2P_8, [ arg1P_8>0 && arg1P_4>0 && -1+arg2P_8>=1 && arg1P_4<=arg1P_8 ], cost: 1+arg2P_8 Eliminated locations (on tree-shaped paths): Start location: __init 19: __init -> f147_0_get_LE : arg1'=0, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ arg1P_1<=arg1P_8 && arg1P_8>0 && arg1P_1>0 && arg1P_1>=arg1P_3 && -1+arg2P_8<1 && arg1P_3>0 && arg2P_8>0 && -1+x23_1>=1 ], cost: 3+x23_1 20: __init -> f147_0_get_LE : arg1'=0, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [ arg1P_8>0 && arg1P_4>0 && -1+arg2P_8>=1 && arg1P_4<=arg1P_8 && arg3P_4>0 && arg2P_2>arg3P_4 && arg1P_2<=arg1P_4 && arg1P_2>0 && 1<=-1+arg2P_2 && 1<=-1+arg2P_6 && -1+x23_1>=1 ], cost: 2+x23_1+arg2P_8 21: __init -> f147_0_get_LE : arg1'=0, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ arg1P_8>0 && arg1P_4>0 && -1+arg2P_8>=1 && arg1P_4<=arg1P_8 && arg3P_4>0 && arg2P_2>arg3P_4 && arg1P_2<=arg1P_4 && arg1P_2>0 && arg2P_2>-1 && -1+x23_1>=1 ], cost: 2+x23_1+arg2P_8 22: __init -> f147_0_get_LE : arg1'=0, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ arg1P_8>0 && arg1P_4>0 && -1+arg2P_8>=1 && arg1P_4<=arg1P_8 && arg1P_4>=arg1P_3 && arg1P_3>0 && -1+x23_1>=1 ], cost: 2+x23_1+arg2P_8 ### Computing asymptotic complexity ### Fully simplified ITS problem Start location: __init 19: __init -> f147_0_get_LE : arg1'=0, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ arg1P_1<=arg1P_8 && arg1P_8>0 && arg1P_1>0 && arg1P_1>=arg1P_3 && -1+arg2P_8<1 && arg1P_3>0 && arg2P_8>0 && -1+x23_1>=1 ], cost: 3+x23_1 20: __init -> f147_0_get_LE : arg1'=0, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [ arg1P_8>0 && arg1P_4>0 && -1+arg2P_8>=1 && arg1P_4<=arg1P_8 && arg3P_4>0 && arg2P_2>arg3P_4 && arg1P_2<=arg1P_4 && arg1P_2>0 && 1<=-1+arg2P_2 && 1<=-1+arg2P_6 && -1+x23_1>=1 ], cost: 2+x23_1+arg2P_8 21: __init -> f147_0_get_LE : arg1'=0, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ arg1P_8>0 && arg1P_4>0 && -1+arg2P_8>=1 && arg1P_4<=arg1P_8 && arg3P_4>0 && arg2P_2>arg3P_4 && arg1P_2<=arg1P_4 && arg1P_2>0 && arg2P_2>-1 && -1+x23_1>=1 ], cost: 2+x23_1+arg2P_8 22: __init -> f147_0_get_LE : arg1'=0, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ arg1P_8>0 && arg1P_4>0 && -1+arg2P_8>=1 && arg1P_4<=arg1P_8 && arg1P_4>=arg1P_3 && arg1P_3>0 && -1+x23_1>=1 ], cost: 2+x23_1+arg2P_8 Computing asymptotic complexity for rule 22 Simplified the guard: 22: __init -> f147_0_get_LE : arg1'=0, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ -1+arg2P_8>=1 && arg1P_4<=arg1P_8 && arg1P_4>=arg1P_3 && arg1P_3>0 && -1+x23_1>=1 ], cost: 2+x23_1+arg2P_8 Resulting cost 0 has complexity: Unknown Computing asymptotic complexity for rule 19 Simplified the guard: 19: __init -> f147_0_get_LE : arg1'=0, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ arg1P_1<=arg1P_8 && arg1P_8>0 && arg1P_1>=arg1P_3 && -1+arg2P_8<1 && arg1P_3>0 && arg2P_8>0 && -1+x23_1>=1 ], cost: 3+x23_1 Resulting cost 0 has complexity: Unknown Computing asymptotic complexity for rule 21 Simplified the guard: 21: __init -> f147_0_get_LE : arg1'=0, arg2'=1, arg3'=arg3P_7, arg4'=arg4P_7, [ -1+arg2P_8>=1 && arg1P_4<=arg1P_8 && arg3P_4>0 && arg2P_2>arg3P_4 && arg1P_2<=arg1P_4 && arg1P_2>0 && -1+x23_1>=1 ], cost: 2+x23_1+arg2P_8 Resulting cost 0 has complexity: Unknown Computing asymptotic complexity for rule 20 Simplified the guard: 20: __init -> f147_0_get_LE : arg1'=0, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [ -1+arg2P_8>=1 && arg1P_4<=arg1P_8 && arg3P_4>0 && arg2P_2>arg3P_4 && arg1P_2<=arg1P_4 && arg1P_2>0 && 1<=-1+arg2P_6 && -1+x23_1>=1 ], cost: 2+x23_1+arg2P_8 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),?)