WORST_CASE(Omega(1),?) ### Pre-processing the ITS problem ### Initial linear ITS problem Start location: __init 0: f1_0_main_ConstantStackPush -> f99_0_loop_aux_LE : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=arg3P_1, [ arg1>0 && arg2>-1 && 0==arg1P_1 && 0==arg2P_1 && 10*arg2==arg3P_1 ], cost: 1 1: f99_0_loop_aux_LE -> f128_0_loop_aux_EQ : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg3P_2, [ arg3<10 && arg3>1 && arg1==arg1P_2 && arg3==arg2P_2 && arg2==arg3P_2 ], cost: 1 2: f99_0_loop_aux_LE -> f128_0_loop_aux_EQ : arg1'=arg1P_3, arg2'=arg2P_3, arg3'=arg3P_3, [ arg3>10 && arg1==arg1P_3 && arg3==arg2P_3 && arg2==arg3P_3 ], cost: 1 4: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, [ arg1<2 && 1==arg3 && 1==arg1P_5 && 1==arg2P_5 && 2==arg3P_5 ], cost: 1 5: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=arg3P_6, [ arg1<2 && 10==arg3 && 0==arg1P_6 && 0==arg2P_6 && 9==arg3P_6 ], cost: 1 3: f128_0_loop_aux_EQ -> f99_0_loop_aux_LE : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, [ arg1<2 && arg2>1 && 0==arg3 && 0==arg1P_4 && 0==arg2P_4 && -1+arg2==arg3P_4 ], cost: 1 6: f128_0_loop_aux_EQ -> f99_0_loop_aux_LE : arg1'=arg1P_7, arg2'=arg2P_7, arg3'=arg3P_7, [ arg1<2 && arg2>1 && 1==arg3 && 1==arg1P_7 && 1==arg2P_7 && 1+arg2==arg3P_7 ], cost: 1 7: __init -> f1_0_main_ConstantStackPush : arg1'=arg1P_8, arg2'=arg2P_8, arg3'=arg3P_8, [], cost: 1 Checking for constant complexity: The following rule is satisfiable with cost >= 1, yielding constant complexity: 7: __init -> f1_0_main_ConstantStackPush : arg1'=arg1P_8, arg2'=arg2P_8, arg3'=arg3P_8, [], cost: 1 Simplified all rules, resulting in: Start location: __init 0: f1_0_main_ConstantStackPush -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=10*arg2, [ arg1>0 && arg2>-1 ], cost: 1 1: f99_0_loop_aux_LE -> f128_0_loop_aux_EQ : arg2'=arg3, arg3'=arg2, [ arg3<10 && arg3>1 ], cost: 1 2: f99_0_loop_aux_LE -> f128_0_loop_aux_EQ : arg2'=arg3, arg3'=arg2, [ arg3>10 ], cost: 1 4: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=2, [ arg1<2 && 1==arg3 ], cost: 1 5: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=9, [ arg1<2 && 10==arg3 ], cost: 1 3: f128_0_loop_aux_EQ -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=-1+arg2, [ arg1<2 && arg2>1 && 0==arg3 ], cost: 1 6: f128_0_loop_aux_EQ -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=1+arg2, [ arg1<2 && arg2>1 && 1==arg3 ], cost: 1 7: __init -> f1_0_main_ConstantStackPush : arg1'=arg1P_8, arg2'=arg2P_8, arg3'=arg3P_8, [], cost: 1 ### Simplification by acceleration and chaining ### Accelerating simple loops of location 1. Accelerating the following rules: 4: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=2, [ arg1<2 && 1==arg3 ], cost: 1 5: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=9, [ arg1<2 && 10==arg3 ], cost: 1 Failed to prove monotonicity of the guard of rule 4. Failed to prove monotonicity of the guard of rule 5. [accelerate] Nesting with 2 inner and 2 outer candidates Accelerated all simple loops using metering functions (where possible): Start location: __init 0: f1_0_main_ConstantStackPush -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=10*arg2, [ arg1>0 && arg2>-1 ], cost: 1 1: f99_0_loop_aux_LE -> f128_0_loop_aux_EQ : arg2'=arg3, arg3'=arg2, [ arg3<10 && arg3>1 ], cost: 1 2: f99_0_loop_aux_LE -> f128_0_loop_aux_EQ : arg2'=arg3, arg3'=arg2, [ arg3>10 ], cost: 1 4: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=2, [ arg1<2 && 1==arg3 ], cost: 1 5: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=9, [ arg1<2 && 10==arg3 ], cost: 1 3: f128_0_loop_aux_EQ -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=-1+arg2, [ arg1<2 && arg2>1 && 0==arg3 ], cost: 1 6: f128_0_loop_aux_EQ -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=1+arg2, [ arg1<2 && arg2>1 && 1==arg3 ], cost: 1 7: __init -> f1_0_main_ConstantStackPush : arg1'=arg1P_8, arg2'=arg2P_8, arg3'=arg3P_8, [], cost: 1 Chained accelerated rules (with incoming rules): Start location: __init 0: f1_0_main_ConstantStackPush -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=10*arg2, [ arg1>0 && arg2>-1 ], cost: 1 9: f1_0_main_ConstantStackPush -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=9, [ arg1>0 && arg2>-1 && 10==10*arg2 ], cost: 2 1: f99_0_loop_aux_LE -> f128_0_loop_aux_EQ : arg2'=arg3, arg3'=arg2, [ arg3<10 && arg3>1 ], cost: 1 2: f99_0_loop_aux_LE -> f128_0_loop_aux_EQ : arg2'=arg3, arg3'=arg2, [ arg3>10 ], cost: 1 3: f128_0_loop_aux_EQ -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=-1+arg2, [ arg1<2 && arg2>1 && 0==arg3 ], cost: 1 6: f128_0_loop_aux_EQ -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=1+arg2, [ arg1<2 && arg2>1 && 1==arg3 ], cost: 1 8: f128_0_loop_aux_EQ -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=2, [ arg1<2 && 0==arg3 && 1==-1+arg2 ], cost: 2 10: f128_0_loop_aux_EQ -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=9, [ arg1<2 && 0==arg3 && 10==-1+arg2 ], cost: 2 11: f128_0_loop_aux_EQ -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=9, [ arg1<2 && 1==arg3 && 10==1+arg2 ], cost: 2 7: __init -> f1_0_main_ConstantStackPush : arg1'=arg1P_8, arg2'=arg2P_8, arg3'=arg3P_8, [], cost: 1 Eliminated locations (on tree-shaped paths): Start location: __init 14: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=-1+arg3, [ arg3<10 && arg3>1 && arg1<2 && 0==arg2 ], cost: 2 15: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=1+arg3, [ arg3<10 && arg3>1 && arg1<2 && 1==arg2 ], cost: 2 16: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=2, [ arg1<2 && 0==arg2 && 1==-1+arg3 ], cost: 3 17: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=9, [ arg1<2 && 1==arg2 && 10==1+arg3 ], cost: 3 18: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=-1+arg3, [ arg3>10 && arg1<2 && 0==arg2 ], cost: 2 19: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=1+arg3, [ arg3>10 && arg1<2 && 1==arg2 ], cost: 2 20: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=9, [ arg1<2 && 0==arg2 && 10==-1+arg3 ], cost: 3 12: __init -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=10*arg2P_8, [ arg1P_8>0 && arg2P_8>-1 ], cost: 2 13: __init -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=9, [ arg1P_8>0 && arg2P_8>-1 && 10==10*arg2P_8 ], cost: 3 Applied pruning (of leafs and parallel rules): Start location: __init 14: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=-1+arg3, [ arg3<10 && arg3>1 && arg1<2 && 0==arg2 ], cost: 2 15: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=1+arg3, [ arg3<10 && arg3>1 && arg1<2 && 1==arg2 ], cost: 2 16: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=2, [ arg1<2 && 0==arg2 && 1==-1+arg3 ], cost: 3 17: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=9, [ arg1<2 && 1==arg2 && 10==1+arg3 ], cost: 3 18: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=-1+arg3, [ arg3>10 && arg1<2 && 0==arg2 ], cost: 2 12: __init -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=10*arg2P_8, [ arg1P_8>0 && arg2P_8>-1 ], cost: 2 13: __init -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=9, [ arg1P_8>0 && arg2P_8>-1 && 10==10*arg2P_8 ], cost: 3 Accelerating simple loops of location 1. Accelerating the following rules: 14: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=-1+arg3, [ arg3<10 && arg3>1 && arg1<2 && 0==arg2 ], cost: 2 15: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=1+arg3, [ arg3<10 && arg3>1 && arg1<2 && 1==arg2 ], cost: 2 16: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=2, [ arg1<2 && 0==arg2 && 1==-1+arg3 ], cost: 3 17: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=9, [ arg1<2 && 1==arg2 && 10==1+arg3 ], cost: 3 18: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=-1+arg3, [ arg3>10 && arg1<2 && 0==arg2 ], cost: 2 Accelerated rule 14 with backward acceleration, yielding the new rule 21. Accelerated rule 15 with backward acceleration, yielding the new rule 22. Failed to prove monotonicity of the guard of rule 16. Failed to prove monotonicity of the guard of rule 17. Accelerated rule 18 with backward acceleration, yielding the new rule 23. [accelerate] Nesting with 5 inner and 5 outer candidates Removing the simple loops: 14 15 18. Accelerated all simple loops using metering functions (where possible): Start location: __init 16: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=2, [ arg1<2 && 0==arg2 && 1==-1+arg3 ], cost: 3 17: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=9, [ arg1<2 && 1==arg2 && 10==1+arg3 ], cost: 3 21: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=1, [ arg3<10 && arg1<2 && 0==arg2 && -1+arg3>=1 ], cost: -2+2*arg3 22: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=1, arg2'=1, arg3'=10, [ arg3>1 && arg1<2 && 1==arg2 && 10-arg3>=1 ], cost: 20-2*arg3 23: f99_0_loop_aux_LE -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=10, [ arg1<2 && 0==arg2 && -10+arg3>=1 ], cost: -20+2*arg3 12: __init -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=10*arg2P_8, [ arg1P_8>0 && arg2P_8>-1 ], cost: 2 13: __init -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=9, [ arg1P_8>0 && arg2P_8>-1 && 10==10*arg2P_8 ], cost: 3 Chained accelerated rules (with incoming rules): Start location: __init 12: __init -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=10*arg2P_8, [ arg1P_8>0 && arg2P_8>-1 ], cost: 2 13: __init -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=9, [ arg1P_8>0 && arg2P_8>-1 && 10==10*arg2P_8 ], cost: 3 24: __init -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=1, [], cost: 19 25: __init -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=10, [ arg2P_8>-1 && -10+10*arg2P_8>=1 ], cost: -18+20*arg2P_8 Removed unreachable locations (and leaf rules with constant cost): Start location: __init 25: __init -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=10, [ arg2P_8>-1 && -10+10*arg2P_8>=1 ], cost: -18+20*arg2P_8 ### Computing asymptotic complexity ### Fully simplified ITS problem Start location: __init 25: __init -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=10, [ arg2P_8>-1 && -10+10*arg2P_8>=1 ], cost: -18+20*arg2P_8 Computing asymptotic complexity for rule 25 Simplified the guard: 25: __init -> f99_0_loop_aux_LE : arg1'=0, arg2'=0, arg3'=10, [ -10+10*arg2P_8>=1 ], cost: -18+20*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),?)