WORST_CASE(Omega(1),?) ### Pre-processing the ITS problem ### Initial linear ITS problem Start location: __init 0: f1_0_main_Load -> f168_0_main_EQ : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2>-1 && arg1P_1>0 && arg2P_1>0 && arg1>0 ], cost: 1 1: f168_0_main_EQ -> f168_0_main_EQ : arg1'=arg1P_2, arg2'=arg2P_2, [ arg2>0 && arg1>0 && arg2>arg1 && arg1==arg1P_2 && arg2-arg1==arg2P_2 ], cost: 1 2: f168_0_main_EQ -> f168_0_main_EQ : arg1'=arg1P_3, arg2'=arg2P_3, [ arg1>0 && arg2>0 && arg2 f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, [], cost: 1 Checking for constant complexity: The following rule is satisfiable with cost >= 1, yielding constant complexity: 3: __init -> f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, [], cost: 1 Simplified all rules, resulting in: Start location: __init 0: f1_0_main_Load -> f168_0_main_EQ : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2>-1 && arg1P_1>0 && arg2P_1>0 && arg1>0 ], cost: 1 1: f168_0_main_EQ -> f168_0_main_EQ : arg2'=arg2-arg1, [ arg1>0 && arg2>arg1 ], cost: 1 2: f168_0_main_EQ -> f168_0_main_EQ : arg1'=-arg2+arg1, [ arg2>0 && arg2 f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, [], cost: 1 ### Simplification by acceleration and chaining ### Accelerating simple loops of location 1. Accelerating the following rules: 1: f168_0_main_EQ -> f168_0_main_EQ : arg2'=arg2-arg1, [ arg1>0 && arg2>arg1 ], cost: 1 2: f168_0_main_EQ -> f168_0_main_EQ : arg1'=-arg2+arg1, [ arg2>0 && arg2 f168_0_main_EQ : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2>-1 && arg1P_1>0 && arg2P_1>0 && arg1>0 ], cost: 1 4: f168_0_main_EQ -> f168_0_main_EQ : arg2'=arg2-k*arg1, [ arg1>0 && k>=0 && -(-1+k)*arg1+arg2>arg1 ], cost: k 5: f168_0_main_EQ -> f168_0_main_EQ : arg1'=-arg2*k_1+arg1, [ arg2>0 && k_1>=0 && arg2<-arg2*(-1+k_1)+arg1 ], cost: k_1 3: __init -> f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, [], cost: 1 Chained accelerated rules (with incoming rules): Start location: __init 0: f1_0_main_Load -> f168_0_main_EQ : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2>-1 && arg1P_1>0 && arg2P_1>0 && arg1>0 ], cost: 1 6: f1_0_main_Load -> f168_0_main_EQ : arg1'=arg1P_1, arg2'=-arg1P_1*k+arg2P_1, [ arg2>-1 && arg1P_1>0 && arg2P_1>0 && arg1>0 && k>=0 && arg2P_1-arg1P_1*(-1+k)>arg1P_1 ], cost: 1+k 7: f1_0_main_Load -> f168_0_main_EQ : arg1'=arg1P_1-k_1*arg2P_1, arg2'=arg2P_1, [ arg2>-1 && arg1P_1>0 && arg2P_1>0 && arg1>0 && k_1>=0 && arg2P_1 f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, [], cost: 1 Removed unreachable locations (and leaf rules with constant cost): Start location: __init 6: f1_0_main_Load -> f168_0_main_EQ : arg1'=arg1P_1, arg2'=-arg1P_1*k+arg2P_1, [ arg2>-1 && arg1P_1>0 && arg2P_1>0 && arg1>0 && k>=0 && arg2P_1-arg1P_1*(-1+k)>arg1P_1 ], cost: 1+k 7: f1_0_main_Load -> f168_0_main_EQ : arg1'=arg1P_1-k_1*arg2P_1, arg2'=arg2P_1, [ arg2>-1 && arg1P_1>0 && arg2P_1>0 && arg1>0 && k_1>=0 && arg2P_1 f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, [], cost: 1 Eliminated locations (on tree-shaped paths): Start location: __init 8: __init -> f168_0_main_EQ : arg1'=arg1P_1, arg2'=-arg1P_1*k+arg2P_1, [ arg2P_4>-1 && arg1P_1>0 && arg2P_1>0 && arg1P_4>0 && k>=0 && arg2P_1-arg1P_1*(-1+k)>arg1P_1 ], cost: 2+k 9: __init -> f168_0_main_EQ : arg1'=arg1P_1-k_1*arg2P_1, arg2'=arg2P_1, [ arg2P_4>-1 && arg1P_1>0 && arg2P_1>0 && arg1P_4>0 && k_1>=0 && arg2P_1 f168_0_main_EQ : arg1'=arg1P_1, arg2'=-arg1P_1*k+arg2P_1, [ arg2P_4>-1 && arg1P_1>0 && arg2P_1>0 && arg1P_4>0 && k>=0 && arg2P_1-arg1P_1*(-1+k)>arg1P_1 ], cost: 2+k 9: __init -> f168_0_main_EQ : arg1'=arg1P_1-k_1*arg2P_1, arg2'=arg2P_1, [ arg2P_4>-1 && arg1P_1>0 && arg2P_1>0 && arg1P_4>0 && k_1>=0 && arg2P_1 f168_0_main_EQ : arg1'=arg1P_1-k_1*arg2P_1, arg2'=arg2P_1, [ arg2P_4>-1 && arg2P_1>0 && arg1P_4>0 && k_1>=0 && arg2P_1