WORST_CASE(Omega(1),?) ### Pre-processing the ITS problem ### Initial linear ITS problem Start location: __init 0: f1 -> f2 : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=arg3P_1, [ 0==arg1P_1 && arg2==arg2P_1 && arg3==arg3P_1 ], cost: 1 1: f2 -> f3 : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg3P_2, [ arg1==arg1P_2 && 100==arg2P_2 && arg3==arg3P_2 ], cost: 1 2: f3 -> f4 : arg1'=arg1P_3, arg2'=arg2P_3, arg3'=arg3P_3, [ arg1==arg1P_3 && arg2==arg2P_3 ], cost: 1 10: f4 -> f5 : arg1'=arg1P_11, arg2'=arg2P_11, arg3'=arg3P_11, [ arg1<40 && arg1==arg1P_11 && arg2==arg2P_11 && arg3==arg3P_11 ], cost: 1 12: f4 -> f11 : arg1'=arg1P_13, arg2'=arg2P_13, arg3'=arg3P_13, [ arg1>=40 && arg1==arg1P_13 && arg2==arg2P_13 && arg3==arg3P_13 ], cost: 1 3: f6 -> f9 : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, [ arg1P_4==1+arg1 && arg2==arg2P_4 && arg3==arg3P_4 ], cost: 1 8: f9 -> f8 : arg1'=arg1P_9, arg2'=arg2P_9, arg3'=arg3P_9, [ arg1==arg1P_9 && arg2==arg2P_9 && arg3==arg3P_9 ], cost: 1 4: f7 -> f10 : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, [ arg1P_5==2+arg1 && arg2==arg2P_5 && arg3==arg3P_5 ], cost: 1 9: f10 -> f8 : arg1'=arg1P_10, arg2'=arg2P_10, arg3'=arg3P_10, [ arg1==arg1P_10 && arg2==arg2P_10 && arg3==arg3P_10 ], cost: 1 5: f5 -> f6 : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=arg3P_6, [ arg3==0 && arg1==arg1P_6 && arg2==arg2P_6 && arg3==arg3P_6 ], cost: 1 6: f5 -> f7 : arg1'=arg1P_7, arg2'=arg2P_7, arg3'=arg3P_7, [ arg3<0 && arg1==arg1P_7 && arg2==arg2P_7 && arg3==arg3P_7 ], cost: 1 7: f5 -> f7 : arg1'=arg1P_8, arg2'=arg2P_8, arg3'=arg3P_8, [ arg3>0 && arg1==arg1P_8 && arg2==arg2P_8 && arg3==arg3P_8 ], cost: 1 11: f8 -> f4 : arg1'=arg1P_12, arg2'=arg2P_12, arg3'=arg3P_12, [ arg1==arg1P_12 && arg2==arg2P_12 && arg3==arg3P_12 ], cost: 1 13: __init -> f1 : arg1'=arg1P_14, arg2'=arg2P_14, arg3'=arg3P_14, [], cost: 1 Checking for constant complexity: The following rule is satisfiable with cost >= 1, yielding constant complexity: 13: __init -> f1 : arg1'=arg1P_14, arg2'=arg2P_14, arg3'=arg3P_14, [], cost: 1 Removed unreachable and leaf rules: Start location: __init 0: f1 -> f2 : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=arg3P_1, [ 0==arg1P_1 && arg2==arg2P_1 && arg3==arg3P_1 ], cost: 1 1: f2 -> f3 : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg3P_2, [ arg1==arg1P_2 && 100==arg2P_2 && arg3==arg3P_2 ], cost: 1 2: f3 -> f4 : arg1'=arg1P_3, arg2'=arg2P_3, arg3'=arg3P_3, [ arg1==arg1P_3 && arg2==arg2P_3 ], cost: 1 10: f4 -> f5 : arg1'=arg1P_11, arg2'=arg2P_11, arg3'=arg3P_11, [ arg1<40 && arg1==arg1P_11 && arg2==arg2P_11 && arg3==arg3P_11 ], cost: 1 3: f6 -> f9 : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, [ arg1P_4==1+arg1 && arg2==arg2P_4 && arg3==arg3P_4 ], cost: 1 8: f9 -> f8 : arg1'=arg1P_9, arg2'=arg2P_9, arg3'=arg3P_9, [ arg1==arg1P_9 && arg2==arg2P_9 && arg3==arg3P_9 ], cost: 1 4: f7 -> f10 : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, [ arg1P_5==2+arg1 && arg2==arg2P_5 && arg3==arg3P_5 ], cost: 1 9: f10 -> f8 : arg1'=arg1P_10, arg2'=arg2P_10, arg3'=arg3P_10, [ arg1==arg1P_10 && arg2==arg2P_10 && arg3==arg3P_10 ], cost: 1 5: f5 -> f6 : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=arg3P_6, [ arg3==0 && arg1==arg1P_6 && arg2==arg2P_6 && arg3==arg3P_6 ], cost: 1 6: f5 -> f7 : arg1'=arg1P_7, arg2'=arg2P_7, arg3'=arg3P_7, [ arg3<0 && arg1==arg1P_7 && arg2==arg2P_7 && arg3==arg3P_7 ], cost: 1 7: f5 -> f7 : arg1'=arg1P_8, arg2'=arg2P_8, arg3'=arg3P_8, [ arg3>0 && arg1==arg1P_8 && arg2==arg2P_8 && arg3==arg3P_8 ], cost: 1 11: f8 -> f4 : arg1'=arg1P_12, arg2'=arg2P_12, arg3'=arg3P_12, [ arg1==arg1P_12 && arg2==arg2P_12 && arg3==arg3P_12 ], cost: 1 13: __init -> f1 : arg1'=arg1P_14, arg2'=arg2P_14, arg3'=arg3P_14, [], cost: 1 Simplified all rules, resulting in: Start location: __init 0: f1 -> f2 : arg1'=0, [], cost: 1 1: f2 -> f3 : arg2'=100, [], cost: 1 2: f3 -> f4 : arg3'=arg3P_3, [], cost: 1 10: f4 -> f5 : [ arg1<40 ], cost: 1 3: f6 -> f9 : arg1'=1+arg1, [], cost: 1 8: f9 -> f8 : [], cost: 1 4: f7 -> f10 : arg1'=2+arg1, [], cost: 1 9: f10 -> f8 : [], cost: 1 5: f5 -> f6 : [ arg3==0 ], cost: 1 6: f5 -> f7 : [ arg3<0 ], cost: 1 7: f5 -> f7 : [ arg3>0 ], cost: 1 11: f8 -> f4 : [], cost: 1 13: __init -> f1 : arg1'=arg1P_14, arg2'=arg2P_14, arg3'=arg3P_14, [], cost: 1 ### Simplification by acceleration and chaining ### Eliminated locations (on linear paths): Start location: __init 10: f4 -> f5 : [ arg1<40 ], cost: 1 19: f7 -> f8 : arg1'=2+arg1, [], cost: 2 6: f5 -> f7 : [ arg3<0 ], cost: 1 7: f5 -> f7 : [ arg3>0 ], cost: 1 18: f5 -> f8 : arg1'=1+arg1, [ arg3==0 ], cost: 3 11: f8 -> f4 : [], cost: 1 16: __init -> f4 : arg1'=0, arg2'=100, arg3'=arg3P_3, [], cost: 4 Eliminated locations (on tree-shaped paths): Start location: __init 20: f4 -> f7 : [ arg1<40 && arg3<0 ], cost: 2 21: f4 -> f7 : [ arg1<40 && arg3>0 ], cost: 2 22: f4 -> f8 : arg1'=1+arg1, [ arg1<40 && arg3==0 ], cost: 4 19: f7 -> f8 : arg1'=2+arg1, [], cost: 2 11: f8 -> f4 : [], cost: 1 16: __init -> f4 : arg1'=0, arg2'=100, arg3'=arg3P_3, [], cost: 4 Eliminated locations (on tree-shaped paths): Start location: __init 25: f4 -> f4 : arg1'=1+arg1, [ arg1<40 && arg3==0 ], cost: 5 26: f4 -> f4 : arg1'=2+arg1, [ arg1<40 && arg3<0 ], cost: 5 27: f4 -> f4 : arg1'=2+arg1, [ arg1<40 && arg3>0 ], cost: 5 16: __init -> f4 : arg1'=0, arg2'=100, arg3'=arg3P_3, [], cost: 4 Accelerating simple loops of location 3. Accelerating the following rules: 25: f4 -> f4 : arg1'=1+arg1, [ arg1<40 && arg3==0 ], cost: 5 26: f4 -> f4 : arg1'=2+arg1, [ arg1<40 && arg3<0 ], cost: 5 27: f4 -> f4 : arg1'=2+arg1, [ arg1<40 && arg3>0 ], cost: 5 Accelerated rule 25 with backward acceleration, yielding the new rule 28. Accelerated rule 26 with backward acceleration, yielding the new rule 29. Accelerated rule 27 with backward acceleration, yielding the new rule 30. [accelerate] Nesting with 3 inner and 3 outer candidates Removing the simple loops: 25 26 27. Accelerated all simple loops using metering functions (where possible): Start location: __init 28: f4 -> f4 : arg1'=40, [ arg3==0 && 40-arg1>=0 ], cost: 200-5*arg1 29: f4 -> f4 : arg1'=2*k_1+arg1, [ arg3<0 && k_1>=0 && -2+2*k_1+arg1<40 ], cost: 5*k_1 30: f4 -> f4 : arg1'=2*k_2+arg1, [ arg3>0 && k_2>=0 && -2+2*k_2+arg1<40 ], cost: 5*k_2 16: __init -> f4 : arg1'=0, arg2'=100, arg3'=arg3P_3, [], cost: 4 Chained accelerated rules (with incoming rules): Start location: __init 16: __init -> f4 : arg1'=0, arg2'=100, arg3'=arg3P_3, [], cost: 4 31: __init -> f4 : arg1'=40, arg2'=100, arg3'=0, [], cost: 204 32: __init -> f4 : arg1'=2*k_1, arg2'=100, arg3'=arg3P_3, [ arg3P_3<0 && k_1>=0 && -2+2*k_1<40 ], cost: 4+5*k_1 33: __init -> f4 : arg1'=2*k_2, arg2'=100, arg3'=arg3P_3, [ arg3P_3>0 && k_2>=0 && -2+2*k_2<40 ], cost: 4+5*k_2 Removed unreachable locations (and leaf rules with constant cost): Start location: __init 32: __init -> f4 : arg1'=2*k_1, arg2'=100, arg3'=arg3P_3, [ arg3P_3<0 && k_1>=0 && -2+2*k_1<40 ], cost: 4+5*k_1 33: __init -> f4 : arg1'=2*k_2, arg2'=100, arg3'=arg3P_3, [ arg3P_3>0 && k_2>=0 && -2+2*k_2<40 ], cost: 4+5*k_2 ### Computing asymptotic complexity ### Fully simplified ITS problem Start location: __init 32: __init -> f4 : arg1'=2*k_1, arg2'=100, arg3'=arg3P_3, [ arg3P_3<0 && k_1>=0 && -2+2*k_1<40 ], cost: 4+5*k_1 33: __init -> f4 : arg1'=2*k_2, arg2'=100, arg3'=arg3P_3, [ arg3P_3>0 && k_2>=0 && -2+2*k_2<40 ], cost: 4+5*k_2 Computing asymptotic complexity for rule 32 Resulting cost 0 has complexity: Unknown Computing asymptotic complexity for rule 33 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),?)