WORST_CASE(Omega(1),?) ### Pre-processing the ITS problem ### Initial linear ITS problem Start location: __init 0: f1_0_main_Load -> f152_0_gcd_LE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2P_1>-1 && arg2>-1 && arg1P_1>-1 && arg1>0 ], cost: 1 1: f152_0_gcd_LE -> f219_0_mod_LT : arg1'=arg1P_2, arg2'=arg2P_2, [ arg2>0 && arg1>0 && arg1==arg1P_2 && arg2==arg2P_2 ], cost: 1 2: f219_0_mod_LT -> f219_0_mod_LT : arg1'=arg1P_3, arg2'=arg2P_3, [ arg2<=arg1 && arg1>0 && arg2>0 && arg1-arg2==arg1P_3 && arg2==arg2P_3 ], cost: 1 3: f219_0_mod_LT -> f152_0_gcd_LE : arg1'=arg1P_4, arg2'=arg2P_4, [ arg2>arg1 && arg2==arg1P_4 && arg1==arg2P_4 ], cost: 1 4: __init -> f1_0_main_Load : arg1'=arg1P_5, arg2'=arg2P_5, [], cost: 1 Checking for constant complexity: The following rule is satisfiable with cost >= 1, yielding constant complexity: 4: __init -> f1_0_main_Load : arg1'=arg1P_5, arg2'=arg2P_5, [], cost: 1 Simplified all rules, resulting in: Start location: __init 0: f1_0_main_Load -> f152_0_gcd_LE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2P_1>-1 && arg2>-1 && arg1P_1>-1 && arg1>0 ], cost: 1 1: f152_0_gcd_LE -> f219_0_mod_LT : [ arg2>0 && arg1>0 ], cost: 1 2: f219_0_mod_LT -> f219_0_mod_LT : arg1'=arg1-arg2, [ arg2<=arg1 && arg1>0 && arg2>0 ], cost: 1 3: f219_0_mod_LT -> f152_0_gcd_LE : arg1'=arg2, arg2'=arg1, [ arg2>arg1 ], cost: 1 4: __init -> f1_0_main_Load : arg1'=arg1P_5, arg2'=arg2P_5, [], cost: 1 ### Simplification by acceleration and chaining ### Accelerating simple loops of location 2. Accelerating the following rules: 2: f219_0_mod_LT -> f219_0_mod_LT : arg1'=arg1-arg2, [ arg2<=arg1 && arg1>0 && arg2>0 ], cost: 1 Found no metering function for rule 2. Removing the simple loops:. Accelerated all simple loops using metering functions (where possible): Start location: __init 0: f1_0_main_Load -> f152_0_gcd_LE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2P_1>-1 && arg2>-1 && arg1P_1>-1 && arg1>0 ], cost: 1 1: f152_0_gcd_LE -> f219_0_mod_LT : [ arg2>0 && arg1>0 ], cost: 1 2: f219_0_mod_LT -> f219_0_mod_LT : arg1'=arg1-arg2, [ arg2<=arg1 && arg1>0 && arg2>0 ], cost: 1 3: f219_0_mod_LT -> f152_0_gcd_LE : arg1'=arg2, arg2'=arg1, [ arg2>arg1 ], cost: 1 4: __init -> f1_0_main_Load : arg1'=arg1P_5, arg2'=arg2P_5, [], cost: 1 Chained accelerated rules (with incoming rules): Start location: __init 0: f1_0_main_Load -> f152_0_gcd_LE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2P_1>-1 && arg2>-1 && arg1P_1>-1 && arg1>0 ], cost: 1 1: f152_0_gcd_LE -> f219_0_mod_LT : [ arg2>0 && arg1>0 ], cost: 1 5: f152_0_gcd_LE -> f219_0_mod_LT : arg1'=arg1-arg2, [ arg2>0 && arg1>0 && arg2<=arg1 ], cost: 2 3: f219_0_mod_LT -> f152_0_gcd_LE : arg1'=arg2, arg2'=arg1, [ arg2>arg1 ], cost: 1 4: __init -> f1_0_main_Load : arg1'=arg1P_5, arg2'=arg2P_5, [], cost: 1 Eliminated locations (on linear paths): Start location: __init 1: f152_0_gcd_LE -> f219_0_mod_LT : [ arg2>0 && arg1>0 ], cost: 1 5: f152_0_gcd_LE -> f219_0_mod_LT : arg1'=arg1-arg2, [ arg2>0 && arg1>0 && arg2<=arg1 ], cost: 2 3: f219_0_mod_LT -> f152_0_gcd_LE : arg1'=arg2, arg2'=arg1, [ arg2>arg1 ], cost: 1 6: __init -> f152_0_gcd_LE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2P_1>-1 && arg2P_5>-1 && arg1P_1>-1 && arg1P_5>0 ], cost: 2 Eliminated locations (on tree-shaped paths): Start location: __init 7: f152_0_gcd_LE -> f152_0_gcd_LE : arg1'=arg2, arg2'=arg1, [ arg2>0 && arg1>0 && arg2>arg1 ], cost: 2 8: f152_0_gcd_LE -> f152_0_gcd_LE : arg1'=arg2, arg2'=arg1-arg2, [ arg2>0 && arg1>0 && arg2<=arg1 && arg2>arg1-arg2 ], cost: 3 6: __init -> f152_0_gcd_LE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2P_1>-1 && arg2P_5>-1 && arg1P_1>-1 && arg1P_5>0 ], cost: 2 Accelerating simple loops of location 1. Accelerating the following rules: 7: f152_0_gcd_LE -> f152_0_gcd_LE : arg1'=arg2, arg2'=arg1, [ arg2>0 && arg1>0 && arg2>arg1 ], cost: 2 8: f152_0_gcd_LE -> f152_0_gcd_LE : arg1'=arg2, arg2'=arg1-arg2, [ arg2>0 && arg1>0 && arg2<=arg1 && arg2>arg1-arg2 ], cost: 3 Found no metering function for rule 7. Found no metering function for rule 8. Removing the simple loops:. Accelerated all simple loops using metering functions (where possible): Start location: __init 7: f152_0_gcd_LE -> f152_0_gcd_LE : arg1'=arg2, arg2'=arg1, [ arg2>0 && arg1>0 && arg2>arg1 ], cost: 2 8: f152_0_gcd_LE -> f152_0_gcd_LE : arg1'=arg2, arg2'=arg1-arg2, [ arg2>0 && arg1>0 && arg2<=arg1 && arg2>arg1-arg2 ], cost: 3 6: __init -> f152_0_gcd_LE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2P_1>-1 && arg2P_5>-1 && arg1P_1>-1 && arg1P_5>0 ], cost: 2 Chained accelerated rules (with incoming rules): Start location: __init 6: __init -> f152_0_gcd_LE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2P_1>-1 && arg2P_5>-1 && arg1P_1>-1 && arg1P_5>0 ], cost: 2 9: __init -> f152_0_gcd_LE : arg1'=arg2P_1, arg2'=arg1P_1, [ arg2P_1>0 && arg1P_1>0 && arg2P_1>arg1P_1 ], cost: 4 10: __init -> f152_0_gcd_LE : arg1'=arg2P_1, arg2'=-arg2P_1+arg1P_1, [ arg2P_1>0 && arg1P_1>0 && arg2P_1<=arg1P_1 && arg2P_1>-arg2P_1+arg1P_1 ], cost: 5 Removed unreachable locations (and leaf rules with constant cost): Start location: __init ### Computing asymptotic complexity ### Fully simplified ITS problem Start location: __init 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),?)