YES proof of prog.inttrs # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Termination of the given IRSwT could be proven: (0) IRSwT (1) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (2) IRSwT (3) IRSwTTerminationDigraphProof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, 78 ms] (4) IRSwT (5) IntTRSCompressionProof [EQUIVALENT, 19 ms] (6) IRSwT (7) IntTRSUnneededArgumentFilterProof [EQUIVALENT, 0 ms] (8) IRSwT (9) TempFilterProof [SOUND, 14 ms] (10) IntTRS (11) PolynomialOrderProcessor [EQUIVALENT, 0 ms] (12) YES ---------------------------------------- (0) Obligation: Rules: l0(i4HAT0, tmpHAT0) -> l1(i4HATpost, tmpHATpost) :|: tmpHAT0 = tmpHATpost && i4HAT0 = i4HATpost && 10 <= i4HAT0 l0(x, x1) -> l2(x2, x3) :|: x1 = x3 && x2 = 1 + x && 1 + x <= 10 l2(x4, x5) -> l0(x6, x7) :|: x5 = x7 && x4 = x6 l3(x8, x9) -> l2(x10, x11) :|: x10 = 0 && x11 = x11 l4(x12, x13) -> l3(x14, x15) :|: x13 = x15 && x12 = x14 Start term: l4(i4HAT0, tmpHAT0) ---------------------------------------- (1) IRSFormatTransformerProof (EQUIVALENT) Reformatted IRS to match normalized format (transformed away non-linear left-hand sides, !=, / and %). ---------------------------------------- (2) Obligation: Rules: l0(i4HAT0, tmpHAT0) -> l1(i4HATpost, tmpHATpost) :|: tmpHAT0 = tmpHATpost && i4HAT0 = i4HATpost && 10 <= i4HAT0 l0(x, x1) -> l2(x2, x3) :|: x1 = x3 && x2 = 1 + x && 1 + x <= 10 l2(x4, x5) -> l0(x6, x7) :|: x5 = x7 && x4 = x6 l3(x8, x9) -> l2(x10, x11) :|: x10 = 0 && x11 = x11 l4(x12, x13) -> l3(x14, x15) :|: x13 = x15 && x12 = x14 Start term: l4(i4HAT0, tmpHAT0) ---------------------------------------- (3) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) l0(i4HAT0, tmpHAT0) -> l1(i4HATpost, tmpHATpost) :|: tmpHAT0 = tmpHATpost && i4HAT0 = i4HATpost && 10 <= i4HAT0 (2) l0(x, x1) -> l2(x2, x3) :|: x1 = x3 && x2 = 1 + x && 1 + x <= 10 (3) l2(x4, x5) -> l0(x6, x7) :|: x5 = x7 && x4 = x6 (4) l3(x8, x9) -> l2(x10, x11) :|: x10 = 0 && x11 = x11 (5) l4(x12, x13) -> l3(x14, x15) :|: x13 = x15 && x12 = x14 Arcs: (2) -> (3) (3) -> (1), (2) (4) -> (3) (5) -> (4) This digraph is fully evaluated! ---------------------------------------- (4) Obligation: Termination digraph: Nodes: (1) l0(x, x1) -> l2(x2, x3) :|: x1 = x3 && x2 = 1 + x && 1 + x <= 10 (2) l2(x4, x5) -> l0(x6, x7) :|: x5 = x7 && x4 = x6 Arcs: (1) -> (2) (2) -> (1) This digraph is fully evaluated! ---------------------------------------- (5) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (6) Obligation: Rules: l0(x:0, x1:0) -> l0(1 + x:0, x1:0) :|: x:0 < 10 ---------------------------------------- (7) IntTRSUnneededArgumentFilterProof (EQUIVALENT) Some arguments are removed because they cannot influence termination. We removed arguments according to the following replacements: l0(x1, x2) -> l0(x1) ---------------------------------------- (8) Obligation: Rules: l0(x:0) -> l0(1 + x:0) :|: x:0 < 10 ---------------------------------------- (9) TempFilterProof (SOUND) Used the following sort dictionary for filtering: l0(INTEGER) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (10) Obligation: Rules: l0(x:0) -> l0(c) :|: c = 1 + x:0 && x:0 < 10 ---------------------------------------- (11) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [l0(x)] = 9 - x The following rules are decreasing: l0(x:0) -> l0(c) :|: c = 1 + x:0 && x:0 < 10 The following rules are bounded: l0(x:0) -> l0(c) :|: c = 1 + x:0 && x:0 < 10 ---------------------------------------- (12) YES