YES proof of prog.inttrs # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Termination of the given IRSwT could be proven: (0) IRSwT (1) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (2) IRSwT (3) IRSwTTerminationDigraphProof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, 132 ms] (4) IRSwT (5) IntTRSCompressionProof [EQUIVALENT, 0 ms] (6) IRSwT (7) TempFilterProof [SOUND, 54 ms] (8) IntTRS (9) PolynomialOrderProcessor [EQUIVALENT, 0 ms] (10) IntTRS (11) PolynomialOrderProcessor [EQUIVALENT, 0 ms] (12) YES ---------------------------------------- (0) Obligation: Rules: f1_0_main_Load(arg1, arg2) -> f161_0_main_LT(arg1P, arg2P) :|: 0 <= arg1 - 1 && -1 <= arg1P - 1 && -1 <= arg2 - 1 f161_0_main_LT(x, x1) -> f212_0_main_LE(x2, x3) :|: 1 = x3 && x = x2 && -1 <= x - 1 f212_0_main_LE(x4, x5) -> f161_0_main_LT(x6, x7) :|: x4 - 1 = x6 && x4 <= x5 f212_0_main_LE(x8, x9) -> f212_0_main_LE(x10, x11) :|: 2 * x9 = x11 && x8 = x10 && x9 <= x8 - 1 && 0 <= x9 - 1 __init(x12, x13) -> f1_0_main_Load(x14, x15) :|: 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) -> f161_0_main_LT(arg1P, arg2P) :|: 0 <= arg1 - 1 && -1 <= arg1P - 1 && -1 <= arg2 - 1 f161_0_main_LT(x, x1) -> f212_0_main_LE(x2, x3) :|: 1 = x3 && x = x2 && -1 <= x - 1 f212_0_main_LE(x4, x5) -> f161_0_main_LT(x6, x7) :|: x4 - 1 = x6 && x4 <= x5 f212_0_main_LE(x8, x9) -> f212_0_main_LE(x10, x11) :|: 2 * x9 = x11 && x8 = x10 && x9 <= x8 - 1 && 0 <= x9 - 1 __init(x12, x13) -> f1_0_main_Load(x14, x15) :|: 0 <= 0 Start term: __init(arg1, arg2) ---------------------------------------- (3) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) f1_0_main_Load(arg1, arg2) -> f161_0_main_LT(arg1P, arg2P) :|: 0 <= arg1 - 1 && -1 <= arg1P - 1 && -1 <= arg2 - 1 (2) f161_0_main_LT(x, x1) -> f212_0_main_LE(x2, x3) :|: 1 = x3 && x = x2 && -1 <= x - 1 (3) f212_0_main_LE(x4, x5) -> f161_0_main_LT(x6, x7) :|: x4 - 1 = x6 && x4 <= x5 (4) f212_0_main_LE(x8, x9) -> f212_0_main_LE(x10, x11) :|: 2 * x9 = x11 && x8 = x10 && x9 <= x8 - 1 && 0 <= x9 - 1 (5) __init(x12, x13) -> f1_0_main_Load(x14, x15) :|: 0 <= 0 Arcs: (1) -> (2) (2) -> (3), (4) (3) -> (2) (4) -> (3), (4) (5) -> (1) This digraph is fully evaluated! ---------------------------------------- (4) Obligation: Termination digraph: Nodes: (1) f161_0_main_LT(x, x1) -> f212_0_main_LE(x2, x3) :|: 1 = x3 && x = x2 && -1 <= x - 1 (2) f212_0_main_LE(x4, x5) -> f161_0_main_LT(x6, x7) :|: x4 - 1 = x6 && x4 <= x5 (3) f212_0_main_LE(x8, x9) -> f212_0_main_LE(x10, x11) :|: 2 * x9 = x11 && x8 = x10 && x9 <= x8 - 1 && 0 <= x9 - 1 Arcs: (1) -> (2), (3) (2) -> (1) (3) -> (2), (3) This digraph is fully evaluated! ---------------------------------------- (5) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (6) Obligation: Rules: f212_0_main_LE(x10:0, x9:0) -> f212_0_main_LE(x10:0, 2 * x9:0) :|: x9:0 > 0 && x9:0 <= x10:0 - 1 f212_0_main_LE(x4:0, x5:0) -> f212_0_main_LE(x4:0 - 1, 1) :|: x5:0 >= x4:0 && x4:0 > 0 ---------------------------------------- (7) TempFilterProof (SOUND) Used the following sort dictionary for filtering: f212_0_main_LE(INTEGER, VARIABLE) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (8) Obligation: Rules: f212_0_main_LE(x10:0, x9:0) -> f212_0_main_LE(x10:0, c) :|: c = 2 * x9:0 && (x9:0 > 0 && x9:0 <= x10:0 - 1) f212_0_main_LE(x4:0, x5:0) -> f212_0_main_LE(c1, c2) :|: c2 = 1 && c1 = x4:0 - 1 && (x5:0 >= x4:0 && x4:0 > 0) ---------------------------------------- (9) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [f212_0_main_LE(x, x1)] = x The following rules are decreasing: f212_0_main_LE(x4:0, x5:0) -> f212_0_main_LE(c1, c2) :|: c2 = 1 && c1 = x4:0 - 1 && (x5:0 >= x4:0 && x4:0 > 0) The following rules are bounded: f212_0_main_LE(x10:0, x9:0) -> f212_0_main_LE(x10:0, c) :|: c = 2 * x9:0 && (x9:0 > 0 && x9:0 <= x10:0 - 1) f212_0_main_LE(x4:0, x5:0) -> f212_0_main_LE(c1, c2) :|: c2 = 1 && c1 = x4:0 - 1 && (x5:0 >= x4:0 && x4:0 > 0) ---------------------------------------- (10) Obligation: Rules: f212_0_main_LE(x10:0, x9:0) -> f212_0_main_LE(x10:0, c) :|: c = 2 * x9:0 && (x9:0 > 0 && x9:0 <= x10:0 - 1) ---------------------------------------- (11) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [f212_0_main_LE(x, x1)] = -1 + x - x1 The following rules are decreasing: f212_0_main_LE(x10:0, x9:0) -> f212_0_main_LE(x10:0, c) :|: c = 2 * x9:0 && (x9:0 > 0 && x9:0 <= x10:0 - 1) The following rules are bounded: f212_0_main_LE(x10:0, x9:0) -> f212_0_main_LE(x10:0, c) :|: c = 2 * x9:0 && (x9:0 > 0 && x9:0 <= x10:0 - 1) ---------------------------------------- (12) YES