YES proof of prog.inttrs # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Termination of the given IRSwT could be proven: (0) IRSwT (1) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (2) IRSwT (3) IRSwTTerminationDigraphProof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, 81 ms] (4) IRSwT (5) IntTRSCompressionProof [EQUIVALENT, 9 ms] (6) IRSwT (7) TempFilterProof [SOUND, 42 ms] (8) IntTRS (9) RankingReductionPairProof [EQUIVALENT, 0 ms] (10) YES ---------------------------------------- (0) Obligation: Rules: f1_0_main_Load(arg1, arg2, arg3) -> f259_0_div_LT(arg1P, arg2P, arg3P) :|: 0 = arg1P && 0 <= arg1 - 1 && -1 <= arg2P - 1 && -1 <= arg2 - 1 && -1 <= arg3P - 1 f259_0_div_LT(x, x1, x2) -> f259_0_div_LT(x3, x4, x5) :|: x2 = x5 && x1 - x2 = x4 && x + 1 = x3 && -1 <= x - 1 && x2 <= x1 && 0 <= x2 - 1 && -1 <= x1 - 1 __init(x6, x7, x8) -> f1_0_main_Load(x9, x10, x11) :|: 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) -> f259_0_div_LT(arg1P, arg2P, arg3P) :|: 0 = arg1P && 0 <= arg1 - 1 && -1 <= arg2P - 1 && -1 <= arg2 - 1 && -1 <= arg3P - 1 f259_0_div_LT(x, x1, x2) -> f259_0_div_LT(x3, x4, x5) :|: x2 = x5 && x1 - x2 = x4 && x + 1 = x3 && -1 <= x - 1 && x2 <= x1 && 0 <= x2 - 1 && -1 <= x1 - 1 __init(x6, x7, x8) -> f1_0_main_Load(x9, x10, x11) :|: 0 <= 0 Start term: __init(arg1, arg2, arg3) ---------------------------------------- (3) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) f1_0_main_Load(arg1, arg2, arg3) -> f259_0_div_LT(arg1P, arg2P, arg3P) :|: 0 = arg1P && 0 <= arg1 - 1 && -1 <= arg2P - 1 && -1 <= arg2 - 1 && -1 <= arg3P - 1 (2) f259_0_div_LT(x, x1, x2) -> f259_0_div_LT(x3, x4, x5) :|: x2 = x5 && x1 - x2 = x4 && x + 1 = x3 && -1 <= x - 1 && x2 <= x1 && 0 <= x2 - 1 && -1 <= x1 - 1 (3) __init(x6, x7, x8) -> f1_0_main_Load(x9, x10, x11) :|: 0 <= 0 Arcs: (1) -> (2) (2) -> (2) (3) -> (1) This digraph is fully evaluated! ---------------------------------------- (4) Obligation: Termination digraph: Nodes: (1) f259_0_div_LT(x, x1, x2) -> f259_0_div_LT(x3, x4, x5) :|: x2 = x5 && x1 - x2 = x4 && x + 1 = x3 && -1 <= x - 1 && x2 <= x1 && 0 <= x2 - 1 && -1 <= x1 - 1 Arcs: (1) -> (1) This digraph is fully evaluated! ---------------------------------------- (5) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (6) Obligation: Rules: f259_0_div_LT(x:0, x1:0, x2:0) -> f259_0_div_LT(x:0 + 1, x1:0 - x2:0, x2:0) :|: x2:0 > 0 && x1:0 > -1 && x:0 > -1 && x2:0 <= x1:0 ---------------------------------------- (7) TempFilterProof (SOUND) Used the following sort dictionary for filtering: f259_0_div_LT(INTEGER, INTEGER, INTEGER) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (8) Obligation: Rules: f259_0_div_LT(x:0, x1:0, x2:0) -> f259_0_div_LT(c, c1, x2:0) :|: c1 = x1:0 - x2:0 && c = x:0 + 1 && (x2:0 > 0 && x1:0 > -1 && x:0 > -1 && x2:0 <= x1:0) ---------------------------------------- (9) RankingReductionPairProof (EQUIVALENT) Interpretation: [ f259_0_div_LT ] = f259_0_div_LT_2 The following rules are decreasing: f259_0_div_LT(x:0, x1:0, x2:0) -> f259_0_div_LT(c, c1, x2:0) :|: c1 = x1:0 - x2:0 && c = x:0 + 1 && (x2:0 > 0 && x1:0 > -1 && x:0 > -1 && x2:0 <= x1:0) The following rules are bounded: f259_0_div_LT(x:0, x1:0, x2:0) -> f259_0_div_LT(c, c1, x2:0) :|: c1 = x1:0 - x2:0 && c = x:0 + 1 && (x2:0 > 0 && x1:0 > -1 && x:0 > -1 && x2:0 <= x1:0) ---------------------------------------- (10) YES