NO ### Pre-processing the ITS problem ### Initial linear ITS problem Start location: __init 0: f1_0_main_Load -> f112_0_loop_GE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2P_1>-1 && arg2>1 && arg1P_1>-1 && arg1>0 ], cost: 1 1: f112_0_loop_GE -> f112_0_loop_GE : arg1'=arg1P_2, arg2'=arg2P_2, [ arg2>arg1 && arg1>-1 && 4+arg1==arg1P_2 && arg2==arg2P_2 ], cost: 1 2: f112_0_loop_GE -> f112_0_loop_GE : arg1'=arg1P_3, arg2'=arg2P_3, [ arg2<=arg1 && arg1>-1 && arg2>-1 && 2+arg1==arg1P_3 && 1+arg2==arg2P_3 ], cost: 1 3: __init -> 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 -> f112_0_loop_GE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2P_1>-1 && arg2>1 && arg1P_1>-1 && arg1>0 ], cost: 1 1: f112_0_loop_GE -> f112_0_loop_GE : arg1'=4+arg1, [ arg2>arg1 && arg1>-1 ], cost: 1 2: f112_0_loop_GE -> f112_0_loop_GE : arg1'=2+arg1, arg2'=1+arg2, [ arg2<=arg1 && arg1>-1 && arg2>-1 ], cost: 1 3: __init -> 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: f112_0_loop_GE -> f112_0_loop_GE : arg1'=4+arg1, [ arg2>arg1 && arg1>-1 ], cost: 1 2: f112_0_loop_GE -> f112_0_loop_GE : arg1'=2+arg1, arg2'=1+arg2, [ arg2<=arg1 && arg1>-1 && arg2>-1 ], cost: 1 Accelerated rule 1 with backward acceleration, yielding the new rule 4. Accelerated rule 2 with non-termination, yielding the new rule 5. [accelerate] Nesting with 1 inner and 1 outer candidates Removing the simple loops: 1 2. Accelerated all simple loops using metering functions (where possible): Start location: __init 0: f1_0_main_Load -> f112_0_loop_GE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2P_1>-1 && arg2>1 && arg1P_1>-1 && arg1>0 ], cost: 1 4: f112_0_loop_GE -> f112_0_loop_GE : arg1'=4*k+arg1, [ arg1>-1 && k>=0 && arg2>-4+4*k+arg1 ], cost: k 5: f112_0_loop_GE -> [3] : [ arg2<=arg1 && arg1>-1 && arg2>-1 ], cost: NONTERM 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 -> f112_0_loop_GE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg2P_1>-1 && arg2>1 && arg1P_1>-1 && arg1>0 ], cost: 1 6: f1_0_main_Load -> f112_0_loop_GE : arg1'=arg1P_1+4*k, arg2'=arg2P_1, [ arg2P_1>-1 && arg2>1 && arg1P_1>-1 && arg1>0 && k>=0 && arg2P_1>-4+arg1P_1+4*k ], cost: 1+k 7: f1_0_main_Load -> [3] : [ arg2>1 && arg1>0 ], cost: NONTERM 3: __init -> 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 -> f112_0_loop_GE : arg1'=arg1P_1+4*k, arg2'=arg2P_1, [ arg2P_1>-1 && arg2>1 && arg1P_1>-1 && arg1>0 && k>=0 && arg2P_1>-4+arg1P_1+4*k ], cost: 1+k 7: f1_0_main_Load -> [3] : [ arg2>1 && arg1>0 ], cost: NONTERM 3: __init -> f1_0_main_Load : arg1'=arg1P_4, arg2'=arg2P_4, [], cost: 1 Eliminated locations (on tree-shaped paths): Start location: __init 8: __init -> f112_0_loop_GE : arg1'=arg1P_1+4*k, arg2'=arg2P_1, [ arg2P_1>-1 && arg2P_4>1 && arg1P_1>-1 && arg1P_4>0 && k>=0 && arg2P_1>-4+arg1P_1+4*k ], cost: 2+k 9: __init -> [3] : [ arg2P_4>1 && arg1P_4>0 ], cost: NONTERM ### Computing asymptotic complexity ### Fully simplified ITS problem Start location: __init 8: __init -> f112_0_loop_GE : arg1'=arg1P_1+4*k, arg2'=arg2P_1, [ arg2P_1>-1 && arg2P_4>1 && arg1P_1>-1 && arg1P_4>0 && k>=0 && arg2P_1>-4+arg1P_1+4*k ], cost: 2+k 9: __init -> [3] : [ arg2P_4>1 && arg1P_4>0 ], cost: NONTERM Computing asymptotic complexity for rule 9 Guard is satisfiable, yielding nontermination Resulting cost NONTERM has complexity: Nonterm Found new complexity Nonterm. Obtained the following overall complexity (w.r.t. the length of the input n): Complexity: Nonterm Cpx degree: Nonterm Solved cost: NONTERM Rule cost: NONTERM Rule guard: [ arg2P_4>1 && arg1P_4>0 ] NO