WORST_CASE(Omega(1),?) ### Pre-processing the ITS problem ### Initial linear ITS problem Start location: __init 0: f1_0_main_Load -> f532_0_mk_LE : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=arg3P_1, arg4'=arg4P_1, [ arg1>0 && 0==arg2 && -1==arg1P_1 && 0==arg2P_1 && 0==arg3P_1 && 0==arg4P_1 ], cost: 1 1: f1_0_main_Load -> f532_0_mk_LE : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg3P_2, arg4'=arg4P_2, [ arg1>0 && x2_1>-1 && 1==arg2 && -1==arg1P_2 && 0==arg2P_2 && 1==arg3P_2 && 1==arg4P_2 ], cost: 1 2: f1_0_main_Load -> f532_0_mk_LE : arg1'=arg1P_3, arg2'=arg2P_3, arg3'=arg3P_3, arg4'=arg4P_3, [ x6_1>-1 && arg2>1 && x5_1>-1 && arg1>0 && -1+x5_1*x6_1==arg1P_3 && x5_1*x6_1==arg2P_3 && arg2==arg3P_3 && 2==arg4P_3 ], cost: 1 3: f532_0_mk_LE -> f532_0_mk_LE : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, [ arg2>0 && arg4>=arg3 && arg3>-1 && -1+arg1==arg1P_4 && arg1==arg2P_4 && arg3==arg3P_4 && arg4==arg4P_4 ], cost: 1 4: f532_0_mk_LE -> f532_0_mk_LE : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, arg4'=arg4P_5, [ arg2>0 && arg3>-1 && arg4>-1 && arg4 f1_0_main_Load : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [], cost: 1 Checking for constant complexity: The following rule is satisfiable with cost >= 1, yielding constant complexity: 5: __init -> f1_0_main_Load : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [], cost: 1 Simplified all rules, resulting in: Start location: __init 0: f1_0_main_Load -> f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=0, arg4'=0, [ arg1>0 && 0==arg2 ], cost: 1 1: f1_0_main_Load -> f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=1, arg4'=1, [ arg1>0 && 1==arg2 ], cost: 1 2: f1_0_main_Load -> f532_0_mk_LE : arg1'=-1+x5_1*x6_1, arg2'=x5_1*x6_1, arg3'=arg2, arg4'=2, [ x6_1>-1 && arg2>1 && x5_1>-1 && arg1>0 ], cost: 1 3: f532_0_mk_LE -> f532_0_mk_LE : arg1'=-1+arg1, arg2'=arg1, [ arg2>0 && arg4>=arg3 && arg3>-1 ], cost: 1 4: f532_0_mk_LE -> f532_0_mk_LE : arg1'=-1+arg1, arg2'=arg1, arg4'=1+arg4, [ arg2>0 && arg4>-1 && arg4 f1_0_main_Load : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [], cost: 1 ### Simplification by acceleration and chaining ### Accelerating simple loops of location 1. Accelerating the following rules: 3: f532_0_mk_LE -> f532_0_mk_LE : arg1'=-1+arg1, arg2'=arg1, [ arg2>0 && arg4>=arg3 && arg3>-1 ], cost: 1 4: f532_0_mk_LE -> f532_0_mk_LE : arg1'=-1+arg1, arg2'=arg1, arg4'=1+arg4, [ arg2>0 && arg4>-1 && arg4 f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=0, arg4'=0, [ arg1>0 && 0==arg2 ], cost: 1 1: f1_0_main_Load -> f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=1, arg4'=1, [ arg1>0 && 1==arg2 ], cost: 1 2: f1_0_main_Load -> f532_0_mk_LE : arg1'=-1+x5_1*x6_1, arg2'=x5_1*x6_1, arg3'=arg2, arg4'=2, [ x6_1>-1 && arg2>1 && x5_1>-1 && arg1>0 ], cost: 1 3: f532_0_mk_LE -> f532_0_mk_LE : arg1'=-1+arg1, arg2'=arg1, [ arg2>0 && arg4>=arg3 && arg3>-1 ], cost: 1 4: f532_0_mk_LE -> f532_0_mk_LE : arg1'=-1+arg1, arg2'=arg1, arg4'=1+arg4, [ arg2>0 && arg4>-1 && arg4 f532_0_mk_LE : arg1'=-1, arg2'=0, [ arg4>=arg3 && arg3>-1 && -arg2+arg1<=0 && 1+arg1>=1 ], cost: 1+arg1 7: f532_0_mk_LE -> f532_0_mk_LE : arg1'=-1, arg2'=0, arg4'=1+arg4+arg1, [ arg4>-1 && -arg2+arg1<=0 && 1+arg1>=1 && arg4+arg1 f532_0_mk_LE : arg1'=-arg3+arg4+arg1, arg2'=1-arg3+arg4+arg1, arg4'=arg3, [ arg4>-1 && -arg2+arg1<=0 && arg3-arg4>=1 && 2-arg3+arg4+arg1>0 ], cost: arg3-arg4 5: __init -> f1_0_main_Load : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [], cost: 1 Chained accelerated rules (with incoming rules): Start location: __init 0: f1_0_main_Load -> f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=0, arg4'=0, [ arg1>0 && 0==arg2 ], cost: 1 1: f1_0_main_Load -> f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=1, arg4'=1, [ arg1>0 && 1==arg2 ], cost: 1 2: f1_0_main_Load -> f532_0_mk_LE : arg1'=-1+x5_1*x6_1, arg2'=x5_1*x6_1, arg3'=arg2, arg4'=2, [ x6_1>-1 && arg2>1 && x5_1>-1 && arg1>0 ], cost: 1 9: f1_0_main_Load -> f532_0_mk_LE : arg1'=-2+x5_1*x6_1, arg2'=-1+x5_1*x6_1, arg3'=arg2, arg4'=2, [ x6_1>-1 && 2-arg2==0 && x5_1>-1 && arg1>0 && x5_1*x6_1>0 ], cost: 2 10: f1_0_main_Load -> f532_0_mk_LE : arg1'=-2+x5_1*x6_1, arg2'=-1+x5_1*x6_1, arg3'=arg2, arg4'=3, [ x6_1>-1 && x5_1>-1 && arg1>0 && x5_1*x6_1>0 && 2 f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=arg2, arg4'=2, [ x6_1>-1 && 2-arg2==0 && x5_1>-1 && arg1>0 && x5_1*x6_1>=1 ], cost: 1+x5_1*x6_1 12: f1_0_main_Load -> f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=arg2, arg4'=2+x5_1*x6_1, [ x6_1>-1 && arg2>1 && x5_1>-1 && arg1>0 && x5_1*x6_1>=1 && 1+x5_1*x6_1 f532_0_mk_LE : arg1'=1-arg2+x5_1*x6_1, arg2'=2-arg2+x5_1*x6_1, arg3'=arg2, arg4'=arg2, [ x6_1>-1 && x5_1>-1 && arg1>0 && -2+arg2>=1 && 3-arg2+x5_1*x6_1>0 ], cost: -1+arg2 5: __init -> f1_0_main_Load : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [], cost: 1 Removed unreachable locations (and leaf rules with constant cost): Start location: __init 11: f1_0_main_Load -> f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=arg2, arg4'=2, [ x6_1>-1 && 2-arg2==0 && x5_1>-1 && arg1>0 && x5_1*x6_1>=1 ], cost: 1+x5_1*x6_1 12: f1_0_main_Load -> f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=arg2, arg4'=2+x5_1*x6_1, [ x6_1>-1 && arg2>1 && x5_1>-1 && arg1>0 && x5_1*x6_1>=1 && 1+x5_1*x6_1 f532_0_mk_LE : arg1'=1-arg2+x5_1*x6_1, arg2'=2-arg2+x5_1*x6_1, arg3'=arg2, arg4'=arg2, [ x6_1>-1 && x5_1>-1 && arg1>0 && -2+arg2>=1 && 3-arg2+x5_1*x6_1>0 ], cost: -1+arg2 5: __init -> f1_0_main_Load : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [], cost: 1 Eliminated locations (on tree-shaped paths): Start location: __init 14: __init -> f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=arg2P_6, arg4'=2, [ x6_1>-1 && 2-arg2P_6==0 && x5_1>-1 && arg1P_6>0 && x5_1*x6_1>=1 ], cost: 2+x5_1*x6_1 15: __init -> f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=arg2P_6, arg4'=2+x5_1*x6_1, [ x6_1>-1 && arg2P_6>1 && x5_1>-1 && arg1P_6>0 && x5_1*x6_1>=1 && 1+x5_1*x6_1 f532_0_mk_LE : arg1'=1-arg2P_6+x5_1*x6_1, arg2'=2-arg2P_6+x5_1*x6_1, arg3'=arg2P_6, arg4'=arg2P_6, [ x6_1>-1 && x5_1>-1 && arg1P_6>0 && -2+arg2P_6>=1 && 3-arg2P_6+x5_1*x6_1>0 ], cost: arg2P_6 ### Computing asymptotic complexity ### Fully simplified ITS problem Start location: __init 14: __init -> f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=arg2P_6, arg4'=2, [ x6_1>-1 && 2-arg2P_6==0 && x5_1>-1 && arg1P_6>0 && x5_1*x6_1>=1 ], cost: 2+x5_1*x6_1 15: __init -> f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=arg2P_6, arg4'=2+x5_1*x6_1, [ x6_1>-1 && arg2P_6>1 && x5_1>-1 && arg1P_6>0 && x5_1*x6_1>=1 && 1+x5_1*x6_1 f532_0_mk_LE : arg1'=1-arg2P_6+x5_1*x6_1, arg2'=2-arg2P_6+x5_1*x6_1, arg3'=arg2P_6, arg4'=arg2P_6, [ x6_1>-1 && x5_1>-1 && arg1P_6>0 && -2+arg2P_6>=1 && 3-arg2P_6+x5_1*x6_1>0 ], cost: arg2P_6 Computing asymptotic complexity for rule 14 Simplified the guard: 14: __init -> f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=arg2P_6, arg4'=2, [ 2-arg2P_6==0 && x5_1>-1 && arg1P_6>0 && x5_1*x6_1>=1 ], cost: 2+x5_1*x6_1 Resulting cost 0 has complexity: Unknown Computing asymptotic complexity for rule 15 Simplified the guard: 15: __init -> f532_0_mk_LE : arg1'=-1, arg2'=0, arg3'=arg2P_6, arg4'=2+x5_1*x6_1, [ x5_1>-1 && arg1P_6>0 && x5_1*x6_1>=1 && 1+x5_1*x6_1 f532_0_mk_LE : arg1'=1-arg2P_6+x5_1*x6_1, arg2'=2-arg2P_6+x5_1*x6_1, arg3'=arg2P_6, arg4'=arg2P_6, [ x5_1>-1 && arg1P_6>0 && -2+arg2P_6>=1 && 3-arg2P_6+x5_1*x6_1>0 ], cost: arg2P_6 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),?)