YES proof of prog.inttrs # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Termination of the given IRSwT could be proven: (0) IRSwT (1) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (2) IRSwT (3) IRSwTTerminationDigraphProof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, 221 ms] (4) IRSwT (5) IntTRSCompressionProof [EQUIVALENT, 14 ms] (6) IRSwT (7) IntTRSUnneededArgumentFilterProof [EQUIVALENT, 0 ms] (8) IRSwT (9) TempFilterProof [SOUND, 15 ms] (10) IntTRS (11) PolynomialOrderProcessor [EQUIVALENT, 0 ms] (12) YES ---------------------------------------- (0) Obligation: Rules: l0(iHAT0, jHAT0, xHAT0) -> l1(iHATpost, jHATpost, xHATpost) :|: xHAT0 = xHATpost && jHAT0 = jHATpost && iHAT0 = iHATpost && xHAT0 <= iHAT0 l0(x, x1, x2) -> l2(x3, x4, x5) :|: x2 = x5 && x3 = 1 + x && x4 = 2 + x1 && 1 + x <= x2 l3(x6, x7, x8) -> l2(x9, x10, x11) :|: x8 = x11 && x7 = x10 && x9 = 0 && 2 <= x8 l3(x12, x13, x14) -> l4(x15, x16, x17) :|: x14 = x17 && x13 = x16 && x12 = x15 && x14 <= 1 l2(x18, x19, x20) -> l0(x21, x22, x23) :|: x20 = x23 && x19 = x22 && x18 = x21 l5(x24, x25, x26) -> l4(x27, x28, x29) :|: x26 = x29 && x25 = x28 && x24 = x27 l1(x30, x31, x32) -> l5(x33, x34, x35) :|: x32 = x35 && x31 = x34 && x30 = x33 && 1 + x31 <= 2 * x32 l1(x36, x37, x38) -> l5(x39, x40, x41) :|: x38 = x41 && x37 = x40 && x36 = x39 && 2 * x38 <= x37 l6(x42, x43, x44) -> l3(x45, x46, x47) :|: x42 = x45 && x47 = 10 && x46 = 0 l7(x48, x49, x50) -> l6(x51, x52, x53) :|: x50 = x53 && x49 = x52 && x48 = x51 Start term: l7(iHAT0, jHAT0, xHAT0) ---------------------------------------- (1) IRSFormatTransformerProof (EQUIVALENT) Reformatted IRS to match normalized format (transformed away non-linear left-hand sides, !=, / and %). ---------------------------------------- (2) Obligation: Rules: l0(iHAT0, jHAT0, xHAT0) -> l1(iHATpost, jHATpost, xHATpost) :|: xHAT0 = xHATpost && jHAT0 = jHATpost && iHAT0 = iHATpost && xHAT0 <= iHAT0 l0(x, x1, x2) -> l2(x3, x4, x5) :|: x2 = x5 && x3 = 1 + x && x4 = 2 + x1 && 1 + x <= x2 l3(x6, x7, x8) -> l2(x9, x10, x11) :|: x8 = x11 && x7 = x10 && x9 = 0 && 2 <= x8 l3(x12, x13, x14) -> l4(x15, x16, x17) :|: x14 = x17 && x13 = x16 && x12 = x15 && x14 <= 1 l2(x18, x19, x20) -> l0(x21, x22, x23) :|: x20 = x23 && x19 = x22 && x18 = x21 l5(x24, x25, x26) -> l4(x27, x28, x29) :|: x26 = x29 && x25 = x28 && x24 = x27 l1(x30, x31, x32) -> l5(x33, x34, x35) :|: x32 = x35 && x31 = x34 && x30 = x33 && 1 + x31 <= 2 * x32 l1(x36, x37, x38) -> l5(x39, x40, x41) :|: x38 = x41 && x37 = x40 && x36 = x39 && 2 * x38 <= x37 l6(x42, x43, x44) -> l3(x45, x46, x47) :|: x42 = x45 && x47 = 10 && x46 = 0 l7(x48, x49, x50) -> l6(x51, x52, x53) :|: x50 = x53 && x49 = x52 && x48 = x51 Start term: l7(iHAT0, jHAT0, xHAT0) ---------------------------------------- (3) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) l0(iHAT0, jHAT0, xHAT0) -> l1(iHATpost, jHATpost, xHATpost) :|: xHAT0 = xHATpost && jHAT0 = jHATpost && iHAT0 = iHATpost && xHAT0 <= iHAT0 (2) l0(x, x1, x2) -> l2(x3, x4, x5) :|: x2 = x5 && x3 = 1 + x && x4 = 2 + x1 && 1 + x <= x2 (3) l3(x6, x7, x8) -> l2(x9, x10, x11) :|: x8 = x11 && x7 = x10 && x9 = 0 && 2 <= x8 (4) l3(x12, x13, x14) -> l4(x15, x16, x17) :|: x14 = x17 && x13 = x16 && x12 = x15 && x14 <= 1 (5) l2(x18, x19, x20) -> l0(x21, x22, x23) :|: x20 = x23 && x19 = x22 && x18 = x21 (6) l5(x24, x25, x26) -> l4(x27, x28, x29) :|: x26 = x29 && x25 = x28 && x24 = x27 (7) l1(x30, x31, x32) -> l5(x33, x34, x35) :|: x32 = x35 && x31 = x34 && x30 = x33 && 1 + x31 <= 2 * x32 (8) l1(x36, x37, x38) -> l5(x39, x40, x41) :|: x38 = x41 && x37 = x40 && x36 = x39 && 2 * x38 <= x37 (9) l6(x42, x43, x44) -> l3(x45, x46, x47) :|: x42 = x45 && x47 = 10 && x46 = 0 (10) l7(x48, x49, x50) -> l6(x51, x52, x53) :|: x50 = x53 && x49 = x52 && x48 = x51 Arcs: (1) -> (7), (8) (2) -> (5) (3) -> (5) (5) -> (1), (2) (7) -> (6) (8) -> (6) (9) -> (3) (10) -> (9) This digraph is fully evaluated! ---------------------------------------- (4) Obligation: Termination digraph: Nodes: (1) l0(x, x1, x2) -> l2(x3, x4, x5) :|: x2 = x5 && x3 = 1 + x && x4 = 2 + x1 && 1 + x <= x2 (2) l2(x18, x19, x20) -> l0(x21, x22, x23) :|: x20 = x23 && x19 = x22 && x18 = x21 Arcs: (1) -> (2) (2) -> (1) This digraph is fully evaluated! ---------------------------------------- (5) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (6) Obligation: Rules: l0(x:0, x1:0, x23:0) -> l0(1 + x:0, 2 + x1:0, x23:0) :|: x23:0 >= 1 + x:0 ---------------------------------------- (7) IntTRSUnneededArgumentFilterProof (EQUIVALENT) Some arguments are removed because they cannot influence termination. We removed arguments according to the following replacements: l0(x1, x2, x3) -> l0(x1, x3) ---------------------------------------- (8) Obligation: Rules: l0(x:0, x23:0) -> l0(1 + x:0, x23:0) :|: x23:0 >= 1 + x:0 ---------------------------------------- (9) TempFilterProof (SOUND) Used the following sort dictionary for filtering: l0(INTEGER, INTEGER) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (10) Obligation: Rules: l0(x:0, x23:0) -> l0(c, x23:0) :|: c = 1 + x:0 && x23:0 >= 1 + x:0 ---------------------------------------- (11) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [l0(x, x1)] = -x + x1 The following rules are decreasing: l0(x:0, x23:0) -> l0(c, x23:0) :|: c = 1 + x:0 && x23:0 >= 1 + x:0 The following rules are bounded: l0(x:0, x23:0) -> l0(c, x23:0) :|: c = 1 + x:0 && x23:0 >= 1 + x:0 ---------------------------------------- (12) YES