YES proof of prog.inttrs # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Termination of the given IRSwT could be proven: (0) IRSwT (1) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (2) IRSwT (3) IRSwTTerminationDigraphProof [EQUIVALENT, 77 ms] (4) IRSwT (5) IntTRSCompressionProof [EQUIVALENT, 0 ms] (6) IRSwT (7) IntTRSUnneededArgumentFilterProof [EQUIVALENT, 0 ms] (8) IRSwT (9) TempFilterProof [SOUND, 27 ms] (10) IntTRS (11) PolynomialOrderProcessor [EQUIVALENT, 13 ms] (12) YES ---------------------------------------- (0) Obligation: Rules: f1_0_main_Load(arg1, arg2) -> f32_0_fact_LE(arg1P, arg2P) :|: arg2 = arg1P && -1 <= arg2 - 1 && 0 <= arg1 - 1 f32_0_fact_LE(x, x1) -> f32_0_fact_LE(x2, x3) :|: x - 1 = x2 && x - 1 <= x - 1 && 1 <= x - 1 __init(x4, x5) -> f1_0_main_Load(x6, x7) :|: 0 <= 0 Start term: __init(arg1, arg2) ---------------------------------------- (1) IRSFormatTransformerProof (EQUIVALENT) Reformatted IRS to match normalized format (transformed away non-linear left-hand sides, !=, / and %). ---------------------------------------- (2) Obligation: Rules: f1_0_main_Load(arg1, arg2) -> f32_0_fact_LE(arg1P, arg2P) :|: arg2 = arg1P && -1 <= arg2 - 1 && 0 <= arg1 - 1 f32_0_fact_LE(x, x1) -> f32_0_fact_LE(x2, x3) :|: x - 1 = x2 && x - 1 <= x - 1 && 1 <= x - 1 __init(x4, x5) -> f1_0_main_Load(x6, x7) :|: 0 <= 0 Start term: __init(arg1, arg2) ---------------------------------------- (3) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) f1_0_main_Load(arg1, arg2) -> f32_0_fact_LE(arg1P, arg2P) :|: arg2 = arg1P && -1 <= arg2 - 1 && 0 <= arg1 - 1 (2) f32_0_fact_LE(x, x1) -> f32_0_fact_LE(x2, x3) :|: x - 1 = x2 && x - 1 <= x - 1 && 1 <= x - 1 (3) __init(x4, x5) -> f1_0_main_Load(x6, x7) :|: 0 <= 0 Arcs: (1) -> (2) (2) -> (2) (3) -> (1) This digraph is fully evaluated! ---------------------------------------- (4) Obligation: Termination digraph: Nodes: (1) f32_0_fact_LE(x, x1) -> f32_0_fact_LE(x2, x3) :|: x - 1 = x2 && x - 1 <= x - 1 && 1 <= x - 1 Arcs: (1) -> (1) This digraph is fully evaluated! ---------------------------------------- (5) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (6) Obligation: Rules: f32_0_fact_LE(x:0, x1:0) -> f32_0_fact_LE(x:0 - 1, x3:0) :|: x:0 > 1 ---------------------------------------- (7) IntTRSUnneededArgumentFilterProof (EQUIVALENT) Some arguments are removed because they cannot influence termination. We removed arguments according to the following replacements: f32_0_fact_LE(x1, x2) -> f32_0_fact_LE(x1) ---------------------------------------- (8) Obligation: Rules: f32_0_fact_LE(x:0) -> f32_0_fact_LE(x:0 - 1) :|: x:0 > 1 ---------------------------------------- (9) TempFilterProof (SOUND) Used the following sort dictionary for filtering: f32_0_fact_LE(INTEGER) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (10) Obligation: Rules: f32_0_fact_LE(x:0) -> f32_0_fact_LE(c) :|: c = x:0 - 1 && x:0 > 1 ---------------------------------------- (11) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [f32_0_fact_LE(x)] = x The following rules are decreasing: f32_0_fact_LE(x:0) -> f32_0_fact_LE(c) :|: c = x:0 - 1 && x:0 > 1 The following rules are bounded: f32_0_fact_LE(x:0) -> f32_0_fact_LE(c) :|: c = x:0 - 1 && x:0 > 1 ---------------------------------------- (12) YES