YES proof of prog.inttrs # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Termination of the given IRSwT could be proven: (0) IRSwT (1) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (2) IRSwT (3) IRSwTTerminationDigraphProof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, 146 ms] (4) IRSwT (5) IntTRSCompressionProof [EQUIVALENT, 44 ms] (6) IRSwT (7) TempFilterProof [SOUND, 45 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) -> f152_0_gcd_LE(arg1P, arg2P) :|: 0 <= arg1 - 1 && -1 <= arg1P - 1 && -1 <= arg2 - 1 && -1 <= arg2P - 1 f152_0_gcd_LE(x, x1) -> f216_0_mod_LT(x2, x3) :|: x1 = x3 && x = x2 && 0 <= x - 1 && 0 <= x1 - 1 f216_0_mod_LT(x4, x5) -> f152_0_gcd_LE(x6, x7) :|: x4 = x7 && x5 = x6 && x4 <= x5 - 1 f216_0_mod_LT(x8, x9) -> f216_0_mod_LT(x10, x11) :|: x9 = x11 && x8 - x9 = x10 && 0 <= x9 - 1 && x9 <= x8 && 0 <= x8 - 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) -> f152_0_gcd_LE(arg1P, arg2P) :|: 0 <= arg1 - 1 && -1 <= arg1P - 1 && -1 <= arg2 - 1 && -1 <= arg2P - 1 f152_0_gcd_LE(x, x1) -> f216_0_mod_LT(x2, x3) :|: x1 = x3 && x = x2 && 0 <= x - 1 && 0 <= x1 - 1 f216_0_mod_LT(x4, x5) -> f152_0_gcd_LE(x6, x7) :|: x4 = x7 && x5 = x6 && x4 <= x5 - 1 f216_0_mod_LT(x8, x9) -> f216_0_mod_LT(x10, x11) :|: x9 = x11 && x8 - x9 = x10 && 0 <= x9 - 1 && x9 <= x8 && 0 <= x8 - 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) -> f152_0_gcd_LE(arg1P, arg2P) :|: 0 <= arg1 - 1 && -1 <= arg1P - 1 && -1 <= arg2 - 1 && -1 <= arg2P - 1 (2) f152_0_gcd_LE(x, x1) -> f216_0_mod_LT(x2, x3) :|: x1 = x3 && x = x2 && 0 <= x - 1 && 0 <= x1 - 1 (3) f216_0_mod_LT(x4, x5) -> f152_0_gcd_LE(x6, x7) :|: x4 = x7 && x5 = x6 && x4 <= x5 - 1 (4) f216_0_mod_LT(x8, x9) -> f216_0_mod_LT(x10, x11) :|: x9 = x11 && x8 - x9 = x10 && 0 <= x9 - 1 && x9 <= x8 && 0 <= x8 - 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) f152_0_gcd_LE(x, x1) -> f216_0_mod_LT(x2, x3) :|: x1 = x3 && x = x2 && 0 <= x - 1 && 0 <= x1 - 1 (2) f216_0_mod_LT(x4, x5) -> f152_0_gcd_LE(x6, x7) :|: x4 = x7 && x5 = x6 && x4 <= x5 - 1 (3) f216_0_mod_LT(x8, x9) -> f216_0_mod_LT(x10, x11) :|: x9 = x11 && x8 - x9 = x10 && 0 <= x9 - 1 && x9 <= x8 && 0 <= x8 - 1 Arcs: (1) -> (2), (3) (2) -> (1) (3) -> (2), (3) This digraph is fully evaluated! ---------------------------------------- (5) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (6) Obligation: Rules: f216_0_mod_LT(x8:0, x11:0) -> f216_0_mod_LT(x8:0 - x11:0, x11:0) :|: x8:0 >= x11:0 && x11:0 > 0 && x8:0 > 0 f216_0_mod_LT(x3:0, x2:0) -> f216_0_mod_LT(x2:0, x3:0) :|: x3:0 > 0 && x2:0 > 0 && x3:0 <= x2:0 - 1 ---------------------------------------- (7) TempFilterProof (SOUND) Used the following sort dictionary for filtering: f216_0_mod_LT(INTEGER, INTEGER) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (8) Obligation: Rules: f216_0_mod_LT(x8:0, x11:0) -> f216_0_mod_LT(c, x11:0) :|: c = x8:0 - x11:0 && (x8:0 >= x11:0 && x11:0 > 0 && x8:0 > 0) f216_0_mod_LT(x3:0, x2:0) -> f216_0_mod_LT(x2:0, x3:0) :|: x3:0 > 0 && x2:0 > 0 && x3:0 <= x2:0 - 1 ---------------------------------------- (9) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [f216_0_mod_LT(x, x1)] = x1 The following rules are decreasing: f216_0_mod_LT(x3:0, x2:0) -> f216_0_mod_LT(x2:0, x3:0) :|: x3:0 > 0 && x2:0 > 0 && x3:0 <= x2:0 - 1 The following rules are bounded: f216_0_mod_LT(x8:0, x11:0) -> f216_0_mod_LT(c, x11:0) :|: c = x8:0 - x11:0 && (x8:0 >= x11:0 && x11:0 > 0 && x8:0 > 0) f216_0_mod_LT(x3:0, x2:0) -> f216_0_mod_LT(x2:0, x3:0) :|: x3:0 > 0 && x2:0 > 0 && x3:0 <= x2:0 - 1 ---------------------------------------- (10) Obligation: Rules: f216_0_mod_LT(x8:0, x11:0) -> f216_0_mod_LT(c, x11:0) :|: c = x8:0 - x11:0 && (x8:0 >= x11:0 && x11:0 > 0 && x8:0 > 0) ---------------------------------------- (11) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [f216_0_mod_LT(x, x1)] = x The following rules are decreasing: f216_0_mod_LT(x8:0, x11:0) -> f216_0_mod_LT(c, x11:0) :|: c = x8:0 - x11:0 && (x8:0 >= x11:0 && x11:0 > 0 && x8:0 > 0) The following rules are bounded: f216_0_mod_LT(x8:0, x11:0) -> f216_0_mod_LT(c, x11:0) :|: c = x8:0 - x11:0 && (x8:0 >= x11:0 && x11:0 > 0 && x8:0 > 0) ---------------------------------------- (12) YES