WORST_CASE(INF,?) ### Pre-processing the ITS problem ### Initial linear ITS problem Start location: __init 0: f1_0_main_Load -> f115_0_loop_LE : arg1'=arg1P_1, arg2'=arg2P_1, [ arg1>0 && arg2>-1 && 0==arg1P_1 && arg2==arg2P_1 ], cost: 1 1: f115_0_loop_LE -> f115_0_loop_LE : arg1'=arg1P_2, arg2'=arg2P_2, [ 1==arg2 && 1==arg1P_2 && 2==arg2P_2 ], cost: 1 2: f115_0_loop_LE -> f115_0_loop_LE : arg1'=arg1P_3, arg2'=arg2P_3, [ arg2<10 && arg2>1 && 1==arg1 && 1==arg1P_3 && 1+arg2==arg2P_3 ], cost: 1 3: f115_0_loop_LE -> f115_0_loop_LE : arg1'=arg1P_4, arg2'=arg2P_4, [ arg2<10 && arg2>1 && 0==arg1 && 0==arg1P_4 && -1+arg2==arg2P_4 ], cost: 1 4: f115_0_loop_LE -> f115_0_loop_LE : arg1'=arg1P_5, arg2'=arg2P_5, [ arg2>10 && 1==arg1 && 1==arg1P_5 && 1+arg2==arg2P_5 ], cost: 1 5: f115_0_loop_LE -> f115_0_loop_LE : arg1'=arg1P_6, arg2'=arg2P_6, [ arg2>10 && 0==arg1 && 0==arg1P_6 && -1+arg2==arg2P_6 ], cost: 1 6: f115_0_loop_LE -> f115_0_loop_LE : arg1'=arg1P_7, arg2'=arg2P_7, [ 10==arg2 && 0==arg1P_7 && 9==arg2P_7 ], cost: 1 7: __init -> f1_0_main_Load : arg1'=arg1P_8, arg2'=arg2P_8, [], cost: 1 Checking for constant complexity: The following rule is satisfiable with cost >= 1, yielding constant complexity: 7: __init -> f1_0_main_Load : arg1'=arg1P_8, arg2'=arg2P_8, [], cost: 1 Simplified all rules, resulting in: Start location: __init 0: f1_0_main_Load -> f115_0_loop_LE : arg1'=0, [ arg1>0 && arg2>-1 ], cost: 1 1: f115_0_loop_LE -> f115_0_loop_LE : arg1'=1, arg2'=2, [ 1==arg2 ], cost: 1 2: f115_0_loop_LE -> f115_0_loop_LE : arg1'=1, arg2'=1+arg2, [ arg2<10 && arg2>1 && 1==arg1 ], cost: 1 3: f115_0_loop_LE -> f115_0_loop_LE : arg1'=0, arg2'=-1+arg2, [ arg2<10 && arg2>1 && 0==arg1 ], cost: 1 4: f115_0_loop_LE -> f115_0_loop_LE : arg1'=1, arg2'=1+arg2, [ arg2>10 && 1==arg1 ], cost: 1 5: f115_0_loop_LE -> f115_0_loop_LE : arg1'=0, arg2'=-1+arg2, [ arg2>10 && 0==arg1 ], cost: 1 6: f115_0_loop_LE -> f115_0_loop_LE : arg1'=0, arg2'=9, [ 10==arg2 ], cost: 1 7: __init -> f1_0_main_Load : arg1'=arg1P_8, arg2'=arg2P_8, [], cost: 1 ### Simplification by acceleration and chaining ### Accelerating simple loops of location 1. Accelerating the following rules: 1: f115_0_loop_LE -> f115_0_loop_LE : arg1'=1, arg2'=2, [ 1==arg2 ], cost: 1 2: f115_0_loop_LE -> f115_0_loop_LE : arg1'=1, arg2'=1+arg2, [ arg2<10 && arg2>1 && 1==arg1 ], cost: 1 3: f115_0_loop_LE -> f115_0_loop_LE : arg1'=0, arg2'=-1+arg2, [ arg2<10 && arg2>1 && 0==arg1 ], cost: 1 4: f115_0_loop_LE -> f115_0_loop_LE : arg1'=1, arg2'=1+arg2, [ arg2>10 && 1==arg1 ], cost: 1 5: f115_0_loop_LE -> f115_0_loop_LE : arg1'=0, arg2'=-1+arg2, [ arg2>10 && 0==arg1 ], cost: 1 6: f115_0_loop_LE -> f115_0_loop_LE : arg1'=0, arg2'=9, [ 10==arg2 ], cost: 1 Accelerated rule 1 with metering function 2-arg2, yielding the new rule 8. Accelerated rule 2 with metering function 10-arg2, yielding the new rule 9. Accelerated rule 3 with metering function -1+arg2, yielding the new rule 10. Accelerated rule 4 with NONTERM, yielding the new rule 11. Accelerated rule 5 with metering function -10+arg2, yielding the new rule 12. Accelerated rule 6 with metering function -9+arg2, yielding the new rule 13. Removing the simple loops: 1 2 3 4 5 6. Accelerated all simple loops using metering functions (where possible): Start location: __init 0: f1_0_main_Load -> f115_0_loop_LE : arg1'=0, [ arg1>0 && arg2>-1 ], cost: 1 8: f115_0_loop_LE -> f115_0_loop_LE : arg1'=1, arg2'=2, [ 1==arg2 ], cost: 2-arg2 9: f115_0_loop_LE -> f115_0_loop_LE : arg1'=1, arg2'=10, [ arg2<10 && arg2>1 && 1==arg1 ], cost: 10-arg2 10: f115_0_loop_LE -> f115_0_loop_LE : arg1'=0, arg2'=1, [ arg2<10 && arg2>1 && 0==arg1 ], cost: -1+arg2 11: f115_0_loop_LE -> [3] : [ arg2>10 && 1==arg1 ], cost: NONTERM 12: f115_0_loop_LE -> f115_0_loop_LE : arg1'=0, arg2'=10, [ arg2>10 && 0==arg1 ], cost: -10+arg2 13: f115_0_loop_LE -> f115_0_loop_LE : arg1'=0, arg2'=9, [ 10==arg2 ], cost: -9+arg2 7: __init -> f1_0_main_Load : arg1'=arg1P_8, arg2'=arg2P_8, [], cost: 1 Chained accelerated rules (with incoming rules): Start location: __init 0: f1_0_main_Load -> f115_0_loop_LE : arg1'=0, [ arg1>0 && arg2>-1 ], cost: 1 14: f1_0_main_Load -> f115_0_loop_LE : arg1'=1, arg2'=2, [ arg1>0 && 1==arg2 ], cost: 3-arg2 15: f1_0_main_Load -> f115_0_loop_LE : arg1'=0, arg2'=1, [ arg1>0 && arg2<10 && arg2>1 ], cost: arg2 16: f1_0_main_Load -> f115_0_loop_LE : arg1'=0, arg2'=10, [ arg1>0 && arg2>10 ], cost: -9+arg2 17: f1_0_main_Load -> f115_0_loop_LE : arg1'=0, arg2'=9, [ arg1>0 && 10==arg2 ], cost: -8+arg2 7: __init -> f1_0_main_Load : arg1'=arg1P_8, arg2'=arg2P_8, [], cost: 1 Removed unreachable locations (and leaf rules with constant cost): Start location: __init 14: f1_0_main_Load -> f115_0_loop_LE : arg1'=1, arg2'=2, [ arg1>0 && 1==arg2 ], cost: 3-arg2 15: f1_0_main_Load -> f115_0_loop_LE : arg1'=0, arg2'=1, [ arg1>0 && arg2<10 && arg2>1 ], cost: arg2 16: f1_0_main_Load -> f115_0_loop_LE : arg1'=0, arg2'=10, [ arg1>0 && arg2>10 ], cost: -9+arg2 17: f1_0_main_Load -> f115_0_loop_LE : arg1'=0, arg2'=9, [ arg1>0 && 10==arg2 ], cost: -8+arg2 7: __init -> f1_0_main_Load : arg1'=arg1P_8, arg2'=arg2P_8, [], cost: 1 Eliminated locations (on tree-shaped paths): Start location: __init 18: __init -> f115_0_loop_LE : arg1'=1, arg2'=2, [ arg1P_8>0 && 1==arg2P_8 ], cost: 4-arg2P_8 19: __init -> f115_0_loop_LE : arg1'=0, arg2'=1, [ arg1P_8>0 && arg2P_8<10 && arg2P_8>1 ], cost: 1+arg2P_8 20: __init -> f115_0_loop_LE : arg1'=0, arg2'=10, [ arg1P_8>0 && arg2P_8>10 ], cost: -8+arg2P_8 21: __init -> f115_0_loop_LE : arg1'=0, arg2'=9, [ arg1P_8>0 && 10==arg2P_8 ], cost: -7+arg2P_8 ### Computing asymptotic complexity ### Fully simplified ITS problem Start location: __init 18: __init -> f115_0_loop_LE : arg1'=1, arg2'=2, [ arg1P_8>0 && 1==arg2P_8 ], cost: 4-arg2P_8 19: __init -> f115_0_loop_LE : arg1'=0, arg2'=1, [ arg1P_8>0 && arg2P_8<10 && arg2P_8>1 ], cost: 1+arg2P_8 20: __init -> f115_0_loop_LE : arg1'=0, arg2'=10, [ arg1P_8>0 && arg2P_8>10 ], cost: -8+arg2P_8 21: __init -> f115_0_loop_LE : arg1'=0, arg2'=9, [ arg1P_8>0 && 10==arg2P_8 ], cost: -7+arg2P_8 Computing asymptotic complexity for rule 18 Could not solve the limit problem. Resulting cost 0 has complexity: Unknown Computing asymptotic complexity for rule 19 Could not solve the limit problem. Resulting cost 0 has complexity: Unknown Computing asymptotic complexity for rule 20 Solved the limit problem by the following transformations: Created initial limit problem: arg1P_8 (+/+!), -10+arg2P_8 (+/+!), -8+arg2P_8 (+) [not solved] removing all constraints (solved by SMT) resulting limit problem: [solved] applying transformation rule (C) using substitution {arg1P_8==1,arg2P_8==n} resulting limit problem: [solved] Solution: arg1P_8 / 1 arg2P_8 / n Resulting cost -8+n has complexity: Unbounded Found new complexity Unbounded. Obtained the following overall complexity (w.r.t. the length of the input n): Complexity: Unbounded Cpx degree: Unbounded Solved cost: -8+n Rule cost: -8+arg2P_8 Rule guard: [ arg1P_8>0 && arg2P_8>10 ] WORST_CASE(INF,?)