YES proof of prog.inttrs # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Termination of the given IRSwT could be proven: (0) IRSwT (1) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (2) IRSwT (3) IRSwTTerminationDigraphProof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, 148 ms] (4) IRSwT (5) IntTRSCompressionProof [EQUIVALENT, 36 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(counterHAT0, yHAT0, zHAT0) -> l1(counterHATpost, yHATpost, zHATpost) :|: zHAT0 = zHATpost && yHAT0 = yHATpost && counterHAT0 = counterHATpost && 36 <= counterHAT0 l0(x, x1, x2) -> l2(x3, x4, x5) :|: x1 = x4 && x3 = 1 + x && x5 = 1 + x2 && 1 + x <= 36 l3(x6, x7, x8) -> l2(x9, x10, x11) :|: x7 = x10 && x6 = x9 && x11 = x11 && x7 <= 127 l3(x12, x13, x14) -> l1(x15, x16, x17) :|: x14 = x17 && x13 = x16 && x12 = x15 && 128 <= x13 l2(x18, x19, x20) -> l0(x21, x22, x23) :|: x20 = x23 && x19 = x22 && x18 = x21 l4(x24, x25, x26) -> l3(x27, x28, x29) :|: x26 = x29 && x25 = x28 && x27 = 0 l5(x30, x31, x32) -> l4(x33, x34, x35) :|: x32 = x35 && x31 = x34 && x30 = x33 Start term: l5(counterHAT0, yHAT0, zHAT0) ---------------------------------------- (1) IRSFormatTransformerProof (EQUIVALENT) Reformatted IRS to match normalized format (transformed away non-linear left-hand sides, !=, / and %). ---------------------------------------- (2) Obligation: Rules: l0(counterHAT0, yHAT0, zHAT0) -> l1(counterHATpost, yHATpost, zHATpost) :|: zHAT0 = zHATpost && yHAT0 = yHATpost && counterHAT0 = counterHATpost && 36 <= counterHAT0 l0(x, x1, x2) -> l2(x3, x4, x5) :|: x1 = x4 && x3 = 1 + x && x5 = 1 + x2 && 1 + x <= 36 l3(x6, x7, x8) -> l2(x9, x10, x11) :|: x7 = x10 && x6 = x9 && x11 = x11 && x7 <= 127 l3(x12, x13, x14) -> l1(x15, x16, x17) :|: x14 = x17 && x13 = x16 && x12 = x15 && 128 <= x13 l2(x18, x19, x20) -> l0(x21, x22, x23) :|: x20 = x23 && x19 = x22 && x18 = x21 l4(x24, x25, x26) -> l3(x27, x28, x29) :|: x26 = x29 && x25 = x28 && x27 = 0 l5(x30, x31, x32) -> l4(x33, x34, x35) :|: x32 = x35 && x31 = x34 && x30 = x33 Start term: l5(counterHAT0, yHAT0, zHAT0) ---------------------------------------- (3) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) l0(counterHAT0, yHAT0, zHAT0) -> l1(counterHATpost, yHATpost, zHATpost) :|: zHAT0 = zHATpost && yHAT0 = yHATpost && counterHAT0 = counterHATpost && 36 <= counterHAT0 (2) l0(x, x1, x2) -> l2(x3, x4, x5) :|: x1 = x4 && x3 = 1 + x && x5 = 1 + x2 && 1 + x <= 36 (3) l3(x6, x7, x8) -> l2(x9, x10, x11) :|: x7 = x10 && x6 = x9 && x11 = x11 && x7 <= 127 (4) l3(x12, x13, x14) -> l1(x15, x16, x17) :|: x14 = x17 && x13 = x16 && x12 = x15 && 128 <= x13 (5) l2(x18, x19, x20) -> l0(x21, x22, x23) :|: x20 = x23 && x19 = x22 && x18 = x21 (6) l4(x24, x25, x26) -> l3(x27, x28, x29) :|: x26 = x29 && x25 = x28 && x27 = 0 (7) l5(x30, x31, x32) -> l4(x33, x34, x35) :|: x32 = x35 && x31 = x34 && x30 = x33 Arcs: (2) -> (5) (3) -> (5) (5) -> (1), (2) (6) -> (3), (4) (7) -> (6) This digraph is fully evaluated! ---------------------------------------- (4) Obligation: Termination digraph: Nodes: (1) l0(x, x1, x2) -> l2(x3, x4, x5) :|: x1 = x4 && x3 = 1 + x && x5 = 1 + x2 && 1 + x <= 36 (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, x2:0) -> l0(1 + x:0, x1:0, 1 + x2:0) :|: x:0 < 36 ---------------------------------------- (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) ---------------------------------------- (8) Obligation: Rules: l0(x:0) -> l0(1 + x:0) :|: x:0 < 36 ---------------------------------------- (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 < 36 ---------------------------------------- (11) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [l0(x)] = 35 - x The following rules are decreasing: l0(x:0) -> l0(c) :|: c = 1 + x:0 && x:0 < 36 The following rules are bounded: l0(x:0) -> l0(c) :|: c = 1 + x:0 && x:0 < 36 ---------------------------------------- (12) YES