YES proof of prog.inttrs # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Termination of the given IRSwT could be proven: (0) IRSwT (1) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (2) IRSwT (3) IRSwTTerminationDigraphProof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, 151 ms] (4) IRSwT (5) IntTRSCompressionProof [EQUIVALENT, 12 ms] (6) IRSwT (7) IRSwTChainingProof [EQUIVALENT, 0 ms] (8) IRSwT (9) IRSwTTerminationDigraphProof [EQUIVALENT, 3 ms] (10) IRSwT (11) IntTRSCompressionProof [EQUIVALENT, 0 ms] (12) IRSwT (13) TempFilterProof [SOUND, 5 ms] (14) IntTRS (15) PolynomialOrderProcessor [EQUIVALENT, 0 ms] (16) YES ---------------------------------------- (0) Obligation: Rules: f1_0_main_Load(arg1, arg2, arg3) -> f252_0_min_GE(arg1P, arg2P, arg3P) :|: arg1P - 1 = arg2P && 0 <= arg1 - 1 && -1 <= arg3P - 1 && -1 <= arg2 - 1 && -1 <= arg1P - 1 f252_0_min_GE(x, x1, x2) -> f261_0_main_NE(x3, x4, x5) :|: x2 = x5 && x1 = x4 && x = x3 && x1 <= x2 - 1 f252_0_min_GE(x6, x7, x8) -> f261_0_main_NE(x9, x10, x11) :|: x8 = x11 && x8 = x10 && x6 = x9 && x8 <= x7 f261_0_main_NE(x12, x13, x14) -> f252_0_min_GE(x15, x16, x17) :|: x13 + 1 = x17 && x12 - 1 = x16 && x12 = x15 && x13 = x14 && -1 <= x12 - 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) -> f252_0_min_GE(arg1P, arg2P, arg3P) :|: arg1P - 1 = arg2P && 0 <= arg1 - 1 && -1 <= arg3P - 1 && -1 <= arg2 - 1 && -1 <= arg1P - 1 f252_0_min_GE(x, x1, x2) -> f261_0_main_NE(x3, x4, x5) :|: x2 = x5 && x1 = x4 && x = x3 && x1 <= x2 - 1 f252_0_min_GE(x6, x7, x8) -> f261_0_main_NE(x9, x10, x11) :|: x8 = x11 && x8 = x10 && x6 = x9 && x8 <= x7 f261_0_main_NE(x12, x13, x14) -> f252_0_min_GE(x15, x16, x17) :|: x13 + 1 = x17 && x12 - 1 = x16 && x12 = x15 && x13 = x14 && -1 <= x12 - 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) -> f252_0_min_GE(arg1P, arg2P, arg3P) :|: arg1P - 1 = arg2P && 0 <= arg1 - 1 && -1 <= arg3P - 1 && -1 <= arg2 - 1 && -1 <= arg1P - 1 (2) f252_0_min_GE(x, x1, x2) -> f261_0_main_NE(x3, x4, x5) :|: x2 = x5 && x1 = x4 && x = x3 && x1 <= x2 - 1 (3) f252_0_min_GE(x6, x7, x8) -> f261_0_main_NE(x9, x10, x11) :|: x8 = x11 && x8 = x10 && x6 = x9 && x8 <= x7 (4) f261_0_main_NE(x12, x13, x14) -> f252_0_min_GE(x15, x16, x17) :|: x13 + 1 = x17 && x12 - 1 = x16 && x12 = x15 && x13 = x14 && -1 <= x12 - 1 (5) __init(x18, x19, x20) -> f1_0_main_Load(x21, x22, x23) :|: 0 <= 0 Arcs: (1) -> (2), (3) (3) -> (4) (4) -> (2), (3) (5) -> (1) This digraph is fully evaluated! ---------------------------------------- (4) Obligation: Termination digraph: Nodes: (1) f252_0_min_GE(x6, x7, x8) -> f261_0_main_NE(x9, x10, x11) :|: x8 = x11 && x8 = x10 && x6 = x9 && x8 <= x7 (2) f261_0_main_NE(x12, x13, x14) -> f252_0_min_GE(x15, x16, x17) :|: x13 + 1 = x17 && x12 - 1 = x16 && x12 = x15 && x13 = x14 && -1 <= x12 - 1 Arcs: (1) -> (2) (2) -> (1) This digraph is fully evaluated! ---------------------------------------- (5) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (6) Obligation: Rules: f252_0_min_GE(x15:0, x7:0, x10:0) -> f252_0_min_GE(x15:0, x15:0 - 1, x10:0 + 1) :|: x7:0 >= x10:0 && x15:0 > -1 ---------------------------------------- (7) IRSwTChainingProof (EQUIVALENT) Chaining! ---------------------------------------- (8) Obligation: Rules: f252_0_min_GE(x, x1, x2) -> f252_0_min_GE(x, x + -1, x2 + 2) :|: TRUE && x1 + -1 * x2 >= 0 && x >= 0 && x + -1 * x2 >= 2 ---------------------------------------- (9) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) f252_0_min_GE(x, x1, x2) -> f252_0_min_GE(x, x + -1, x2 + 2) :|: TRUE && x1 + -1 * x2 >= 0 && x >= 0 && x + -1 * x2 >= 2 Arcs: (1) -> (1) This digraph is fully evaluated! ---------------------------------------- (10) Obligation: Termination digraph: Nodes: (1) f252_0_min_GE(x, x1, x2) -> f252_0_min_GE(x, x + -1, x2 + 2) :|: TRUE && x1 + -1 * x2 >= 0 && x >= 0 && x + -1 * x2 >= 2 Arcs: (1) -> (1) This digraph is fully evaluated! ---------------------------------------- (11) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (12) Obligation: Rules: f252_0_min_GE(x:0, x1:0, x2:0) -> f252_0_min_GE(x:0, x:0 - 1, x2:0 + 2) :|: x:0 > -1 && x1:0 + -1 * x2:0 >= 0 && x:0 + -1 * x2:0 >= 2 ---------------------------------------- (13) TempFilterProof (SOUND) Used the following sort dictionary for filtering: f252_0_min_GE(INTEGER, INTEGER, INTEGER) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (14) Obligation: Rules: f252_0_min_GE(x:0, x1:0, x2:0) -> f252_0_min_GE(x:0, c, c1) :|: c1 = x2:0 + 2 && c = x:0 - 1 && (x:0 > -1 && x1:0 + -1 * x2:0 >= 0 && x:0 + -1 * x2:0 >= 2) ---------------------------------------- (15) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [f252_0_min_GE(x, x1, x2)] = -1 + x - x2 The following rules are decreasing: f252_0_min_GE(x:0, x1:0, x2:0) -> f252_0_min_GE(x:0, c, c1) :|: c1 = x2:0 + 2 && c = x:0 - 1 && (x:0 > -1 && x1:0 + -1 * x2:0 >= 0 && x:0 + -1 * x2:0 >= 2) The following rules are bounded: f252_0_min_GE(x:0, x1:0, x2:0) -> f252_0_min_GE(x:0, c, c1) :|: c1 = x2:0 + 2 && c = x:0 - 1 && (x:0 > -1 && x1:0 + -1 * x2:0 >= 0 && x:0 + -1 * x2:0 >= 2) ---------------------------------------- (16) YES