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, arg4'=arg4P_1, [ arg2==arg2P_1 && arg3==arg3P_1 && arg4==arg4P_1 ], cost: 1 1: f2 -> f3 : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg3P_2, arg4'=arg4P_2, [ arg1==arg1P_2 && arg3==arg3P_2 && arg4==arg4P_2 ], cost: 1 17: f3 -> f4 : arg1'=arg1P_18, arg2'=arg2P_18, arg3'=arg3P_18, arg4'=arg4P_18, [ -arg2+arg1>=1 && arg1==arg1P_18 && arg2==arg2P_18 && arg3==arg3P_18 && arg4==arg4P_18 ], cost: 1 19: f3 -> f18 : arg1'=arg1P_20, arg2'=arg2P_20, arg3'=arg3P_20, arg4'=arg4P_20, [ -arg2+arg1<1 && arg1==arg1P_20 && arg2==arg2P_20 && arg3==arg3P_20 && arg4==arg4P_20 ], cost: 1 2: f4 -> f5 : arg1'=arg1P_3, arg2'=arg2P_3, arg3'=arg3P_3, arg4'=arg4P_3, [ arg1==arg1P_3 && arg2==arg2P_3 && arg4==arg4P_3 ], cost: 1 4: f5 -> f6 : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, arg4'=arg4P_5, [ arg3<0 && arg1==arg1P_5 && arg2==arg2P_5 && arg3==arg3P_5 && arg4==arg4P_5 ], cost: 1 5: f5 -> f7 : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [ arg3>=0 && arg1==arg1P_6 && arg2==arg2P_6 && arg3==arg3P_6 && arg4==arg4P_6 ], cost: 1 3: f6 -> f9 : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, [ arg3P_4==-arg3 && arg1==arg1P_4 && arg2==arg2P_4 && arg4==arg4P_4 ], cost: 1 6: f9 -> f8 : arg1'=arg1P_7, arg2'=arg2P_7, arg3'=arg3P_7, arg4'=arg4P_7, [ arg1==arg1P_7 && arg2==arg2P_7 && arg3==arg3P_7 && arg4==arg4P_7 ], cost: 1 7: f7 -> f8 : arg1'=arg1P_8, arg2'=arg2P_8, arg3'=arg3P_8, arg4'=arg4P_8, [ arg1==arg1P_8 && arg2==arg2P_8 && arg3==arg3P_8 && arg4==arg4P_8 ], cost: 1 8: f8 -> f10 : arg1'=arg1P_9, arg2'=arg2P_9, arg3'=arg3P_9, arg4'=arg4P_9, [ arg1P_9==-arg3+arg1 && arg2==arg2P_9 && arg3==arg3P_9 && arg4==arg4P_9 ], cost: 1 9: f10 -> f11 : arg1'=arg1P_10, arg2'=arg2P_10, arg3'=arg3P_10, arg4'=arg4P_10, [ arg1==arg1P_10 && arg2==arg2P_10 && arg3==arg3P_10 ], cost: 1 11: f11 -> f12 : arg1'=arg1P_12, arg2'=arg2P_12, arg3'=arg3P_12, arg4'=arg4P_12, [ arg4<0 && arg1==arg1P_12 && arg2==arg2P_12 && arg3==arg3P_12 && arg4==arg4P_12 ], cost: 1 12: f11 -> f13 : arg1'=arg1P_13, arg2'=arg2P_13, arg3'=arg3P_13, arg4'=arg4P_13, [ arg4>=0 && arg1==arg1P_13 && arg2==arg2P_13 && arg3==arg3P_13 && arg4==arg4P_13 ], cost: 1 10: f12 -> f15 : arg1'=arg1P_11, arg2'=arg2P_11, arg3'=arg3P_11, arg4'=arg4P_11, [ arg4P_11==-arg4 && arg1==arg1P_11 && arg2==arg2P_11 && arg3==arg3P_11 ], cost: 1 13: f15 -> f14 : arg1'=arg1P_14, arg2'=arg2P_14, arg3'=arg3P_14, arg4'=arg4P_14, [ arg1==arg1P_14 && arg2==arg2P_14 && arg3==arg3P_14 && arg4==arg4P_14 ], cost: 1 14: f13 -> f14 : arg1'=arg1P_15, arg2'=arg2P_15, arg3'=arg3P_15, arg4'=arg4P_15, [ arg1==arg1P_15 && arg2==arg2P_15 && arg3==arg3P_15 && arg4==arg4P_15 ], cost: 1 15: f14 -> f16 : arg1'=arg1P_16, arg2'=arg2P_16, arg3'=arg3P_16, arg4'=arg4P_16, [ arg4P_16==1+arg4 && arg1==arg1P_16 && arg2==arg2P_16 && arg3==arg3P_16 ], cost: 1 16: f16 -> f17 : arg1'=arg1P_17, arg2'=arg2P_17, arg3'=arg3P_17, arg4'=arg4P_17, [ arg2P_17==arg2+arg4 && arg1==arg1P_17 && arg3==arg3P_17 && arg4==arg4P_17 ], cost: 1 18: f17 -> f3 : arg1'=arg1P_19, arg2'=arg2P_19, arg3'=arg3P_19, arg4'=arg4P_19, [ arg1==arg1P_19 && arg2==arg2P_19 && arg3==arg3P_19 && arg4==arg4P_19 ], cost: 1 20: __init -> f1 : arg1'=arg1P_21, arg2'=arg2P_21, arg3'=arg3P_21, arg4'=arg4P_21, [], cost: 1 Checking for constant complexity: The following rule is satisfiable with cost >= 1, yielding constant complexity: 20: __init -> f1 : arg1'=arg1P_21, arg2'=arg2P_21, arg3'=arg3P_21, arg4'=arg4P_21, [], cost: 1 Removed unreachable and leaf rules: Start location: __init 0: f1 -> f2 : arg1'=arg1P_1, arg2'=arg2P_1, arg3'=arg3P_1, arg4'=arg4P_1, [ arg2==arg2P_1 && arg3==arg3P_1 && arg4==arg4P_1 ], cost: 1 1: f2 -> f3 : arg1'=arg1P_2, arg2'=arg2P_2, arg3'=arg3P_2, arg4'=arg4P_2, [ arg1==arg1P_2 && arg3==arg3P_2 && arg4==arg4P_2 ], cost: 1 17: f3 -> f4 : arg1'=arg1P_18, arg2'=arg2P_18, arg3'=arg3P_18, arg4'=arg4P_18, [ -arg2+arg1>=1 && arg1==arg1P_18 && arg2==arg2P_18 && arg3==arg3P_18 && arg4==arg4P_18 ], cost: 1 2: f4 -> f5 : arg1'=arg1P_3, arg2'=arg2P_3, arg3'=arg3P_3, arg4'=arg4P_3, [ arg1==arg1P_3 && arg2==arg2P_3 && arg4==arg4P_3 ], cost: 1 4: f5 -> f6 : arg1'=arg1P_5, arg2'=arg2P_5, arg3'=arg3P_5, arg4'=arg4P_5, [ arg3<0 && arg1==arg1P_5 && arg2==arg2P_5 && arg3==arg3P_5 && arg4==arg4P_5 ], cost: 1 5: f5 -> f7 : arg1'=arg1P_6, arg2'=arg2P_6, arg3'=arg3P_6, arg4'=arg4P_6, [ arg3>=0 && arg1==arg1P_6 && arg2==arg2P_6 && arg3==arg3P_6 && arg4==arg4P_6 ], cost: 1 3: f6 -> f9 : arg1'=arg1P_4, arg2'=arg2P_4, arg3'=arg3P_4, arg4'=arg4P_4, [ arg3P_4==-arg3 && arg1==arg1P_4 && arg2==arg2P_4 && arg4==arg4P_4 ], cost: 1 6: f9 -> f8 : arg1'=arg1P_7, arg2'=arg2P_7, arg3'=arg3P_7, arg4'=arg4P_7, [ arg1==arg1P_7 && arg2==arg2P_7 && arg3==arg3P_7 && arg4==arg4P_7 ], cost: 1 7: f7 -> f8 : arg1'=arg1P_8, arg2'=arg2P_8, arg3'=arg3P_8, arg4'=arg4P_8, [ arg1==arg1P_8 && arg2==arg2P_8 && arg3==arg3P_8 && arg4==arg4P_8 ], cost: 1 8: f8 -> f10 : arg1'=arg1P_9, arg2'=arg2P_9, arg3'=arg3P_9, arg4'=arg4P_9, [ arg1P_9==-arg3+arg1 && arg2==arg2P_9 && arg3==arg3P_9 && arg4==arg4P_9 ], cost: 1 9: f10 -> f11 : arg1'=arg1P_10, arg2'=arg2P_10, arg3'=arg3P_10, arg4'=arg4P_10, [ arg1==arg1P_10 && arg2==arg2P_10 && arg3==arg3P_10 ], cost: 1 11: f11 -> f12 : arg1'=arg1P_12, arg2'=arg2P_12, arg3'=arg3P_12, arg4'=arg4P_12, [ arg4<0 && arg1==arg1P_12 && arg2==arg2P_12 && arg3==arg3P_12 && arg4==arg4P_12 ], cost: 1 12: f11 -> f13 : arg1'=arg1P_13, arg2'=arg2P_13, arg3'=arg3P_13, arg4'=arg4P_13, [ arg4>=0 && arg1==arg1P_13 && arg2==arg2P_13 && arg3==arg3P_13 && arg4==arg4P_13 ], cost: 1 10: f12 -> f15 : arg1'=arg1P_11, arg2'=arg2P_11, arg3'=arg3P_11, arg4'=arg4P_11, [ arg4P_11==-arg4 && arg1==arg1P_11 && arg2==arg2P_11 && arg3==arg3P_11 ], cost: 1 13: f15 -> f14 : arg1'=arg1P_14, arg2'=arg2P_14, arg3'=arg3P_14, arg4'=arg4P_14, [ arg1==arg1P_14 && arg2==arg2P_14 && arg3==arg3P_14 && arg4==arg4P_14 ], cost: 1 14: f13 -> f14 : arg1'=arg1P_15, arg2'=arg2P_15, arg3'=arg3P_15, arg4'=arg4P_15, [ arg1==arg1P_15 && arg2==arg2P_15 && arg3==arg3P_15 && arg4==arg4P_15 ], cost: 1 15: f14 -> f16 : arg1'=arg1P_16, arg2'=arg2P_16, arg3'=arg3P_16, arg4'=arg4P_16, [ arg4P_16==1+arg4 && arg1==arg1P_16 && arg2==arg2P_16 && arg3==arg3P_16 ], cost: 1 16: f16 -> f17 : arg1'=arg1P_17, arg2'=arg2P_17, arg3'=arg3P_17, arg4'=arg4P_17, [ arg2P_17==arg2+arg4 && arg1==arg1P_17 && arg3==arg3P_17 && arg4==arg4P_17 ], cost: 1 18: f17 -> f3 : arg1'=arg1P_19, arg2'=arg2P_19, arg3'=arg3P_19, arg4'=arg4P_19, [ arg1==arg1P_19 && arg2==arg2P_19 && arg3==arg3P_19 && arg4==arg4P_19 ], cost: 1 20: __init -> f1 : arg1'=arg1P_21, arg2'=arg2P_21, arg3'=arg3P_21, arg4'=arg4P_21, [], cost: 1 Simplified all rules, resulting in: Start location: __init 0: f1 -> f2 : arg1'=arg1P_1, [], cost: 1 1: f2 -> f3 : arg2'=arg2P_2, [], cost: 1 17: f3 -> f4 : [ -arg2+arg1>=1 ], cost: 1 2: f4 -> f5 : arg3'=arg3P_3, [], cost: 1 4: f5 -> f6 : [ arg3<0 ], cost: 1 5: f5 -> f7 : [ arg3>=0 ], cost: 1 3: f6 -> f9 : arg3'=-arg3, [], cost: 1 6: f9 -> f8 : [], cost: 1 7: f7 -> f8 : [], cost: 1 8: f8 -> f10 : arg1'=-arg3+arg1, [], cost: 1 9: f10 -> f11 : arg4'=arg4P_10, [], cost: 1 11: f11 -> f12 : [ arg4<0 ], cost: 1 12: f11 -> f13 : [ arg4>=0 ], cost: 1 10: f12 -> f15 : arg4'=-arg4, [], cost: 1 13: f15 -> f14 : [], cost: 1 14: f13 -> f14 : [], cost: 1 15: f14 -> f16 : arg4'=1+arg4, [], cost: 1 16: f16 -> f17 : arg2'=arg2+arg4, [], cost: 1 18: f17 -> f3 : [], cost: 1 20: __init -> f1 : arg1'=arg1P_21, arg2'=arg2P_21, arg3'=arg3P_21, arg4'=arg4P_21, [], cost: 1 ### Simplification by acceleration and chaining ### Eliminated locations (on linear paths): Start location: __init 23: f3 -> f5 : arg3'=arg3P_3, [ -arg2+arg1>=1 ], cost: 2 25: f5 -> f8 : [ arg3>=0 ], cost: 2 26: f5 -> f8 : arg3'=-arg3, [ arg3<0 ], cost: 3 27: f8 -> f11 : arg1'=-arg3+arg1, arg4'=arg4P_10, [], cost: 2 29: f11 -> f14 : [ arg4>=0 ], cost: 2 30: f11 -> f14 : arg4'=-arg4, [ arg4<0 ], cost: 3 32: f14 -> f3 : arg2'=1+arg2+arg4, arg4'=1+arg4, [], cost: 3 22: __init -> f3 : arg1'=arg1P_1, arg2'=arg2P_2, arg3'=arg3P_21, arg4'=arg4P_21, [], cost: 3 Eliminated locations (on tree-shaped paths): Start location: __init 33: f3 -> f8 : arg3'=arg3P_3, [ -arg2+arg1>=1 && arg3P_3>=0 ], cost: 4 34: f3 -> f8 : arg3'=-arg3P_3, [ -arg2+arg1>=1 && arg3P_3<0 ], cost: 5 35: f8 -> f14 : arg1'=-arg3+arg1, arg4'=arg4P_10, [ arg4P_10>=0 ], cost: 4 36: f8 -> f14 : arg1'=-arg3+arg1, arg4'=-arg4P_10, [ arg4P_10<0 ], cost: 5 32: f14 -> f3 : arg2'=1+arg2+arg4, arg4'=1+arg4, [], cost: 3 22: __init -> f3 : arg1'=arg1P_1, arg2'=arg2P_2, arg3'=arg3P_21, arg4'=arg4P_21, [], cost: 3 Eliminated locations (on tree-shaped paths): Start location: __init 37: f3 -> f14 : arg1'=-arg3P_3+arg1, arg3'=arg3P_3, arg4'=arg4P_10, [ -arg2+arg1>=1 && arg3P_3>=0 && arg4P_10>=0 ], cost: 8 38: f3 -> f14 : arg1'=-arg3P_3+arg1, arg3'=arg3P_3, arg4'=-arg4P_10, [ -arg2+arg1>=1 && arg3P_3>=0 && arg4P_10<0 ], cost: 9 39: f3 -> f14 : arg1'=arg3P_3+arg1, arg3'=-arg3P_3, arg4'=arg4P_10, [ -arg2+arg1>=1 && arg3P_3<0 && arg4P_10>=0 ], cost: 9 40: f3 -> f14 : arg1'=arg3P_3+arg1, arg3'=-arg3P_3, arg4'=-arg4P_10, [ -arg2+arg1>=1 && arg3P_3<0 && arg4P_10<0 ], cost: 10 32: f14 -> f3 : arg2'=1+arg2+arg4, arg4'=1+arg4, [], cost: 3 22: __init -> f3 : arg1'=arg1P_1, arg2'=arg2P_2, arg3'=arg3P_21, arg4'=arg4P_21, [], cost: 3 Eliminated locations (on tree-shaped paths): Start location: __init 41: f3 -> f3 : arg1'=-arg3P_3+arg1, arg2'=1+arg2+arg4P_10, arg3'=arg3P_3, arg4'=1+arg4P_10, [ -arg2+arg1>=1 && arg3P_3>=0 && arg4P_10>=0 ], cost: 11 42: f3 -> f3 : arg1'=-arg3P_3+arg1, arg2'=1+arg2-arg4P_10, arg3'=arg3P_3, arg4'=1-arg4P_10, [ -arg2+arg1>=1 && arg3P_3>=0 && arg4P_10<0 ], cost: 12 43: f3 -> f3 : arg1'=arg3P_3+arg1, arg2'=1+arg2+arg4P_10, arg3'=-arg3P_3, arg4'=1+arg4P_10, [ -arg2+arg1>=1 && arg3P_3<0 && arg4P_10>=0 ], cost: 12 44: f3 -> f3 : arg1'=arg3P_3+arg1, arg2'=1+arg2-arg4P_10, arg3'=-arg3P_3, arg4'=1-arg4P_10, [ -arg2+arg1>=1 && arg3P_3<0 && arg4P_10<0 ], cost: 13 22: __init -> f3 : arg1'=arg1P_1, arg2'=arg2P_2, arg3'=arg3P_21, arg4'=arg4P_21, [], cost: 3 Accelerating simple loops of location 2. Accelerating the following rules: 41: f3 -> f3 : arg1'=-arg3P_3+arg1, arg2'=1+arg2+arg4P_10, arg3'=arg3P_3, arg4'=1+arg4P_10, [ -arg2+arg1>=1 && arg3P_3>=0 && arg4P_10>=0 ], cost: 11 42: f3 -> f3 : arg1'=-arg3P_3+arg1, arg2'=1+arg2-arg4P_10, arg3'=arg3P_3, arg4'=1-arg4P_10, [ -arg2+arg1>=1 && arg3P_3>=0 && arg4P_10<0 ], cost: 12 43: f3 -> f3 : arg1'=arg3P_3+arg1, arg2'=1+arg2+arg4P_10, arg3'=-arg3P_3, arg4'=1+arg4P_10, [ -arg2+arg1>=1 && arg3P_3<0 && arg4P_10>=0 ], cost: 12 44: f3 -> f3 : arg1'=arg3P_3+arg1, arg2'=1+arg2-arg4P_10, arg3'=-arg3P_3, arg4'=1-arg4P_10, [ -arg2+arg1>=1 && arg3P_3<0 && arg4P_10<0 ], cost: 13 Accelerated rule 41 with backward acceleration, yielding the new rule 45. Accelerated rule 42 with backward acceleration, yielding the new rule 46. Accelerated rule 43 with backward acceleration, yielding the new rule 47. Accelerated rule 44 with backward acceleration, yielding the new rule 48. [accelerate] Nesting with 4 inner and 4 outer candidates Removing the simple loops: 41 42 43 44. Accelerated all simple loops using metering functions (where possible): Start location: __init 45: f3 -> f3 : arg1'=-arg3P_3*k+arg1, arg2'=arg2+arg4P_10*k+k, arg3'=arg3P_3, arg4'=1+arg4P_10, [ arg3P_3>=0 && arg4P_10>=0 && k>=1 && 1-arg3P_3*(-1+k)-arg2-k+arg1-arg4P_10*(-1+k)>=1 ], cost: 11*k 46: f3 -> f3 : arg1'=-arg3P_3*k_1+arg1, arg2'=arg2-arg4P_10*k_1+k_1, arg3'=arg3P_3, arg4'=1-arg4P_10, [ arg3P_3>=0 && arg4P_10<0 && k_1>=1 && 1-arg2-arg3P_3*(-1+k_1)+arg4P_10*(-1+k_1)-k_1+arg1>=1 ], cost: 12*k_1 47: f3 -> f3 : arg1'=arg1+k_2*arg3P_3, arg2'=k_2*arg4P_10+k_2+arg2, arg3'=-arg3P_3, arg4'=1+arg4P_10, [ arg3P_3<0 && arg4P_10>=0 && k_2>=1 && 1-k_2-arg2-(-1+k_2)*arg4P_10+(-1+k_2)*arg3P_3+arg1>=1 ], cost: 12*k_2 48: f3 -> f3 : arg1'=arg3P_3*k_3+arg1, arg2'=arg2-arg4P_10*k_3+k_3, arg3'=-arg3P_3, arg4'=1-arg4P_10, [ arg3P_3<0 && arg4P_10<0 && k_3>=1 && 1-arg2+arg3P_3*(-1+k_3)+arg4P_10*(-1+k_3)-k_3+arg1>=1 ], cost: 13*k_3 22: __init -> f3 : arg1'=arg1P_1, arg2'=arg2P_2, arg3'=arg3P_21, arg4'=arg4P_21, [], cost: 3 Chained accelerated rules (with incoming rules): Start location: __init 22: __init -> f3 : arg1'=arg1P_1, arg2'=arg2P_2, arg3'=arg3P_21, arg4'=arg4P_21, [], cost: 3 49: __init -> f3 : arg1'=-arg3P_3*k+arg1P_1, arg2'=arg2P_2+arg4P_10*k+k, arg3'=arg3P_3, arg4'=1+arg4P_10, [ arg3P_3>=0 && arg4P_10>=0 && k>=1 && 1-arg3P_3*(-1+k)-arg2P_2+arg1P_1-k-arg4P_10*(-1+k)>=1 ], cost: 3+11*k 50: __init -> f3 : arg1'=-arg3P_3*k_1+arg1P_1, arg2'=arg2P_2-arg4P_10*k_1+k_1, arg3'=arg3P_3, arg4'=1-arg4P_10, [ arg3P_3>=0 && arg4P_10<0 && k_1>=1 && 1-arg2P_2-arg3P_3*(-1+k_1)+arg1P_1+arg4P_10*(-1+k_1)-k_1>=1 ], cost: 3+12*k_1 51: __init -> f3 : arg1'=arg1P_1+k_2*arg3P_3, arg2'=k_2*arg4P_10+k_2+arg2P_2, arg3'=-arg3P_3, arg4'=1+arg4P_10, [ arg3P_3<0 && arg4P_10>=0 && k_2>=1 && 1-k_2-arg2P_2-(-1+k_2)*arg4P_10+(-1+k_2)*arg3P_3+arg1P_1>=1 ], cost: 3+12*k_2 52: __init -> f3 : arg1'=arg3P_3*k_3+arg1P_1, arg2'=arg2P_2-arg4P_10*k_3+k_3, arg3'=-arg3P_3, arg4'=1-arg4P_10, [ arg3P_3<0 && arg4P_10<0 && k_3>=1 && 1-arg2P_2+arg3P_3*(-1+k_3)+arg4P_10*(-1+k_3)+arg1P_1-k_3>=1 ], cost: 3+13*k_3 Removed unreachable locations (and leaf rules with constant cost): Start location: __init 49: __init -> f3 : arg1'=-arg3P_3*k+arg1P_1, arg2'=arg2P_2+arg4P_10*k+k, arg3'=arg3P_3, arg4'=1+arg4P_10, [ arg3P_3>=0 && arg4P_10>=0 && k>=1 && 1-arg3P_3*(-1+k)-arg2P_2+arg1P_1-k-arg4P_10*(-1+k)>=1 ], cost: 3+11*k 50: __init -> f3 : arg1'=-arg3P_3*k_1+arg1P_1, arg2'=arg2P_2-arg4P_10*k_1+k_1, arg3'=arg3P_3, arg4'=1-arg4P_10, [ arg3P_3>=0 && arg4P_10<0 && k_1>=1 && 1-arg2P_2-arg3P_3*(-1+k_1)+arg1P_1+arg4P_10*(-1+k_1)-k_1>=1 ], cost: 3+12*k_1 51: __init -> f3 : arg1'=arg1P_1+k_2*arg3P_3, arg2'=k_2*arg4P_10+k_2+arg2P_2, arg3'=-arg3P_3, arg4'=1+arg4P_10, [ arg3P_3<0 && arg4P_10>=0 && k_2>=1 && 1-k_2-arg2P_2-(-1+k_2)*arg4P_10+(-1+k_2)*arg3P_3+arg1P_1>=1 ], cost: 3+12*k_2 52: __init -> f3 : arg1'=arg3P_3*k_3+arg1P_1, arg2'=arg2P_2-arg4P_10*k_3+k_3, arg3'=-arg3P_3, arg4'=1-arg4P_10, [ arg3P_3<0 && arg4P_10<0 && k_3>=1 && 1-arg2P_2+arg3P_3*(-1+k_3)+arg4P_10*(-1+k_3)+arg1P_1-k_3>=1 ], cost: 3+13*k_3 ### Computing asymptotic complexity ### Fully simplified ITS problem Start location: __init 49: __init -> f3 : arg1'=-arg3P_3*k+arg1P_1, arg2'=arg2P_2+arg4P_10*k+k, arg3'=arg3P_3, arg4'=1+arg4P_10, [ arg3P_3>=0 && arg4P_10>=0 && k>=1 && 1-arg3P_3*(-1+k)-arg2P_2+arg1P_1-k-arg4P_10*(-1+k)>=1 ], cost: 3+11*k 50: __init -> f3 : arg1'=-arg3P_3*k_1+arg1P_1, arg2'=arg2P_2-arg4P_10*k_1+k_1, arg3'=arg3P_3, arg4'=1-arg4P_10, [ arg3P_3>=0 && arg4P_10<0 && k_1>=1 && 1-arg2P_2-arg3P_3*(-1+k_1)+arg1P_1+arg4P_10*(-1+k_1)-k_1>=1 ], cost: 3+12*k_1 51: __init -> f3 : arg1'=arg1P_1+k_2*arg3P_3, arg2'=k_2*arg4P_10+k_2+arg2P_2, arg3'=-arg3P_3, arg4'=1+arg4P_10, [ arg3P_3<0 && arg4P_10>=0 && k_2>=1 && 1-k_2-arg2P_2-(-1+k_2)*arg4P_10+(-1+k_2)*arg3P_3+arg1P_1>=1 ], cost: 3+12*k_2 52: __init -> f3 : arg1'=arg3P_3*k_3+arg1P_1, arg2'=arg2P_2-arg4P_10*k_3+k_3, arg3'=-arg3P_3, arg4'=1-arg4P_10, [ arg3P_3<0 && arg4P_10<0 && k_3>=1 && 1-arg2P_2+arg3P_3*(-1+k_3)+arg4P_10*(-1+k_3)+arg1P_1-k_3>=1 ], cost: 3+13*k_3 Computing asymptotic complexity for rule 49 Resulting cost 0 has complexity: Unknown Computing asymptotic complexity for rule 50 Resulting cost 0 has complexity: Unknown Computing asymptotic complexity for rule 51 Resulting cost 0 has complexity: Unknown Computing asymptotic complexity for rule 52 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),?)