YES proof of prog.inttrs # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Termination of the given IRSwT could be proven: (0) IRSwT (1) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (2) IRSwT (3) IRSwTTerminationDigraphProof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, 149 ms] (4) IRSwT (5) IntTRSCompressionProof [EQUIVALENT, 29 ms] (6) IRSwT (7) IntTRSUnneededArgumentFilterProof [EQUIVALENT, 0 ms] (8) IRSwT (9) TempFilterProof [SOUND, 16 ms] (10) IntTRS (11) PolynomialOrderProcessor [EQUIVALENT, 0 ms] (12) YES ---------------------------------------- (0) Obligation: Rules: f1_0_main_Load(arg1, arg2, arg3) -> f203_0_main_NE(arg1P, arg2P, arg3P) :|: 0 <= arg1 - 1 && -1 <= arg1P - 1 && -1 <= arg2 - 1 && -1 <= arg2P - 1 f203_0_main_NE(x, x1, x2) -> f239_0_main_LE(x3, x4, x5) :|: x = x5 && x = x4 && x = x3 && x = x1 && 0 <= x - 1 f239_0_main_LE(x6, x7, x8) -> f203_0_main_NE(x9, x10, x11) :|: 0 = x10 && x6 = x9 && 0 = x8 && 0 = x7 f239_0_main_LE(x12, x13, x14) -> f239_0_main_LE(x15, x16, x17) :|: x13 - 1 = x17 && x13 - 1 = x16 && x12 - 1 = x15 && x13 = x14 && 0 <= x13 - 1 __init(x18, x19, x20) -> f1_0_main_Load(x21, x22, x23) :|: 0 <= 0 Start term: __init(arg1, arg2, arg3) ---------------------------------------- (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, arg3) -> f203_0_main_NE(arg1P, arg2P, arg3P) :|: 0 <= arg1 - 1 && -1 <= arg1P - 1 && -1 <= arg2 - 1 && -1 <= arg2P - 1 f203_0_main_NE(x, x1, x2) -> f239_0_main_LE(x3, x4, x5) :|: x = x5 && x = x4 && x = x3 && x = x1 && 0 <= x - 1 f239_0_main_LE(x6, x7, x8) -> f203_0_main_NE(x9, x10, x11) :|: 0 = x10 && x6 = x9 && 0 = x8 && 0 = x7 f239_0_main_LE(x12, x13, x14) -> f239_0_main_LE(x15, x16, x17) :|: x13 - 1 = x17 && x13 - 1 = x16 && x12 - 1 = x15 && x13 = x14 && 0 <= x13 - 1 __init(x18, x19, x20) -> f1_0_main_Load(x21, x22, x23) :|: 0 <= 0 Start term: __init(arg1, arg2, arg3) ---------------------------------------- (3) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) f1_0_main_Load(arg1, arg2, arg3) -> f203_0_main_NE(arg1P, arg2P, arg3P) :|: 0 <= arg1 - 1 && -1 <= arg1P - 1 && -1 <= arg2 - 1 && -1 <= arg2P - 1 (2) f203_0_main_NE(x, x1, x2) -> f239_0_main_LE(x3, x4, x5) :|: x = x5 && x = x4 && x = x3 && x = x1 && 0 <= x - 1 (3) f239_0_main_LE(x6, x7, x8) -> f203_0_main_NE(x9, x10, x11) :|: 0 = x10 && x6 = x9 && 0 = x8 && 0 = x7 (4) f239_0_main_LE(x12, x13, x14) -> f239_0_main_LE(x15, x16, x17) :|: x13 - 1 = x17 && x13 - 1 = x16 && x12 - 1 = x15 && x13 = x14 && 0 <= x13 - 1 (5) __init(x18, x19, x20) -> f1_0_main_Load(x21, x22, x23) :|: 0 <= 0 Arcs: (1) -> (2) (2) -> (4) (4) -> (3), (4) (5) -> (1) This digraph is fully evaluated! ---------------------------------------- (4) Obligation: Termination digraph: Nodes: (1) f239_0_main_LE(x12, x13, x14) -> f239_0_main_LE(x15, x16, x17) :|: x13 - 1 = x17 && x13 - 1 = x16 && x12 - 1 = x15 && x13 = x14 && 0 <= x13 - 1 Arcs: (1) -> (1) This digraph is fully evaluated! ---------------------------------------- (5) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (6) Obligation: Rules: f239_0_main_LE(x12:0, x13:0, x13:0) -> f239_0_main_LE(x12:0 - 1, x13:0 - 1, x13:0 - 1) :|: x13:0 > 0 ---------------------------------------- (7) IntTRSUnneededArgumentFilterProof (EQUIVALENT) Some arguments are removed because they cannot influence termination. We removed arguments according to the following replacements: f239_0_main_LE(x1, x2, x3) -> f239_0_main_LE(x2, x3) ---------------------------------------- (8) Obligation: Rules: f239_0_main_LE(x13:0, x13:0) -> f239_0_main_LE(x13:0 - 1, x13:0 - 1) :|: x13:0 > 0 ---------------------------------------- (9) TempFilterProof (SOUND) Used the following sort dictionary for filtering: f239_0_main_LE(INTEGER, INTEGER) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (10) Obligation: Rules: f239_0_main_LE(x13:0, x13:0) -> f239_0_main_LE(c, c1) :|: c1 = x13:0 - 1 && c = x13:0 - 1 && x13:0 > 0 ---------------------------------------- (11) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [f239_0_main_LE(x, x1)] = x1 The following rules are decreasing: f239_0_main_LE(x13:0, x13:0) -> f239_0_main_LE(c, c1) :|: c1 = x13:0 - 1 && c = x13:0 - 1 && x13:0 > 0 The following rules are bounded: f239_0_main_LE(x13:0, x13:0) -> f239_0_main_LE(c, c1) :|: c1 = x13:0 - 1 && c = x13:0 - 1 && x13:0 > 0 ---------------------------------------- (12) YES