YES proof of prog.inttrs # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Termination of the given IRSwT could be proven: (0) IRSwT (1) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (2) IRSwT (3) IRSwTTerminationDigraphProof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, 136 ms] (4) IRSwT (5) IntTRSCompressionProof [EQUIVALENT, 0 ms] (6) IRSwT (7) IntTRSUnneededArgumentFilterProof [EQUIVALENT, 1 ms] (8) IRSwT (9) TempFilterProof [SOUND, 32 ms] (10) IntTRS (11) PolynomialOrderProcessor [EQUIVALENT, 0 ms] (12) YES ---------------------------------------- (0) Obligation: Rules: l0(Result_4HAT0, x_5HAT0) -> l1(Result_4HATpost, x_5HATpost) :|: Result_4HAT0 = Result_4HATpost && x_5HATpost = -1 + x_5HAT0 && 0 <= -1 + x_5HAT0 l1(x, x1) -> l0(x2, x3) :|: x1 = x3 && x = x2 l0(x4, x5) -> l2(x6, x7) :|: x5 <= 0 && x8 = x8 && x6 = x6 && x5 = x7 l3(x9, x10) -> l0(x11, x12) :|: x9 = x11 && x12 = -1 + x10 && 0 <= -1 + x10 l3(x13, x14) -> l2(x15, x16) :|: x14 <= 0 && x17 = x17 && x15 = x15 && x14 = x16 l4(x18, x19) -> l3(x20, x21) :|: x19 = x21 && x18 = x20 l5(x22, x23) -> l4(x24, x25) :|: x23 = x25 && x22 = x24 Start term: l5(Result_4HAT0, x_5HAT0) ---------------------------------------- (1) IRSFormatTransformerProof (EQUIVALENT) Reformatted IRS to match normalized format (transformed away non-linear left-hand sides, !=, / and %). ---------------------------------------- (2) Obligation: Rules: l0(Result_4HAT0, x_5HAT0) -> l1(Result_4HATpost, x_5HATpost) :|: Result_4HAT0 = Result_4HATpost && x_5HATpost = -1 + x_5HAT0 && 0 <= -1 + x_5HAT0 l1(x, x1) -> l0(x2, x3) :|: x1 = x3 && x = x2 l0(x4, x5) -> l2(x6, x7) :|: x5 <= 0 && x8 = x8 && x6 = x6 && x5 = x7 l3(x9, x10) -> l0(x11, x12) :|: x9 = x11 && x12 = -1 + x10 && 0 <= -1 + x10 l3(x13, x14) -> l2(x15, x16) :|: x14 <= 0 && x17 = x17 && x15 = x15 && x14 = x16 l4(x18, x19) -> l3(x20, x21) :|: x19 = x21 && x18 = x20 l5(x22, x23) -> l4(x24, x25) :|: x23 = x25 && x22 = x24 Start term: l5(Result_4HAT0, x_5HAT0) ---------------------------------------- (3) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) l0(Result_4HAT0, x_5HAT0) -> l1(Result_4HATpost, x_5HATpost) :|: Result_4HAT0 = Result_4HATpost && x_5HATpost = -1 + x_5HAT0 && 0 <= -1 + x_5HAT0 (2) l1(x, x1) -> l0(x2, x3) :|: x1 = x3 && x = x2 (3) l0(x4, x5) -> l2(x6, x7) :|: x5 <= 0 && x8 = x8 && x6 = x6 && x5 = x7 (4) l3(x9, x10) -> l0(x11, x12) :|: x9 = x11 && x12 = -1 + x10 && 0 <= -1 + x10 (5) l3(x13, x14) -> l2(x15, x16) :|: x14 <= 0 && x17 = x17 && x15 = x15 && x14 = x16 (6) l4(x18, x19) -> l3(x20, x21) :|: x19 = x21 && x18 = x20 (7) l5(x22, x23) -> l4(x24, x25) :|: x23 = x25 && x22 = x24 Arcs: (1) -> (2) (2) -> (1), (3) (4) -> (1), (3) (6) -> (4), (5) (7) -> (6) This digraph is fully evaluated! ---------------------------------------- (4) Obligation: Termination digraph: Nodes: (1) l0(Result_4HAT0, x_5HAT0) -> l1(Result_4HATpost, x_5HATpost) :|: Result_4HAT0 = Result_4HATpost && x_5HATpost = -1 + x_5HAT0 && 0 <= -1 + x_5HAT0 (2) l1(x, x1) -> l0(x2, x3) :|: x1 = x3 && x = x2 Arcs: (1) -> (2) (2) -> (1) This digraph is fully evaluated! ---------------------------------------- (5) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (6) Obligation: Rules: l0(Result_4HAT0:0, x_5HAT0:0) -> l0(Result_4HAT0:0, -1 + x_5HAT0:0) :|: x_5HAT0:0 > 0 ---------------------------------------- (7) IntTRSUnneededArgumentFilterProof (EQUIVALENT) Some arguments are removed because they cannot influence termination. We removed arguments according to the following replacements: l0(x1, x2) -> l0(x2) ---------------------------------------- (8) Obligation: Rules: l0(x_5HAT0:0) -> l0(-1 + x_5HAT0:0) :|: x_5HAT0:0 > 0 ---------------------------------------- (9) TempFilterProof (SOUND) Used the following sort dictionary for filtering: l0(INTEGER) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (10) Obligation: Rules: l0(x_5HAT0:0) -> l0(c) :|: c = -1 + x_5HAT0:0 && x_5HAT0:0 > 0 ---------------------------------------- (11) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [l0(x)] = x The following rules are decreasing: l0(x_5HAT0:0) -> l0(c) :|: c = -1 + x_5HAT0:0 && x_5HAT0:0 > 0 The following rules are bounded: l0(x_5HAT0:0) -> l0(c) :|: c = -1 + x_5HAT0:0 && x_5HAT0:0 > 0 ---------------------------------------- (12) YES