YES proof of prog.inttrs # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Termination of the given IRSwT could be proven: (0) IRSwT (1) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (2) IRSwT (3) IRSwTTerminationDigraphProof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, 0 ms] (6) IRSwT (7) IntTRSUnneededArgumentFilterProof [EQUIVALENT, 0 ms] (8) IRSwT (9) TempFilterProof [SOUND, 25 ms] (10) IntTRS (11) PolynomialOrderProcessor [EQUIVALENT, 8 ms] (12) YES ---------------------------------------- (0) Obligation: Rules: l0(Result_4HAT0, b_7HAT0, x_5HAT0, y_6HAT0) -> l1(Result_4HATpost, b_7HATpost, x_5HATpost, y_6HATpost) :|: x_5HAT0 = x_5HATpost && Result_4HAT0 = Result_4HATpost && y_6HATpost = -1 + y_6HAT0 && b_7HATpost = 0 && 1 - b_7HAT0 <= 0 && 0 <= -1 - x_5HAT0 + y_6HAT0 l0(x, x1, x2, x3) -> l2(x4, x5, x6, x7) :|: x3 = x7 && x2 = x6 && x1 = x5 && x4 = x4 && -1 * x2 + x3 <= 0 l3(x8, x9, x10, x11) -> l1(x12, x13, x14, x15) :|: x11 = x15 && x10 = x14 && x8 = x12 && x13 = 0 l1(x16, x17, x18, x19) -> l0(x20, x21, x22, x23) :|: x19 = x23 && x16 = x20 && x22 = 1 + x18 && x21 = 1 && 0 <= -1 * x17 && 0 <= -1 - x18 + x19 l1(x24, x25, x26, x27) -> l2(x28, x29, x30, x31) :|: x27 = x31 && x26 = x30 && x25 = x29 && x28 = x28 && -1 * x26 + x27 <= 0 l4(x32, x33, x34, x35) -> l3(x36, x37, x38, x39) :|: x35 = x39 && x34 = x38 && x33 = x37 && x32 = x36 Start term: l4(Result_4HAT0, b_7HAT0, x_5HAT0, y_6HAT0) ---------------------------------------- (1) IRSFormatTransformerProof (EQUIVALENT) Reformatted IRS to match normalized format (transformed away non-linear left-hand sides, !=, / and %). ---------------------------------------- (2) Obligation: Rules: l0(Result_4HAT0, b_7HAT0, x_5HAT0, y_6HAT0) -> l1(Result_4HATpost, b_7HATpost, x_5HATpost, y_6HATpost) :|: x_5HAT0 = x_5HATpost && Result_4HAT0 = Result_4HATpost && y_6HATpost = -1 + y_6HAT0 && b_7HATpost = 0 && 1 - b_7HAT0 <= 0 && 0 <= -1 - x_5HAT0 + y_6HAT0 l0(x, x1, x2, x3) -> l2(x4, x5, x6, x7) :|: x3 = x7 && x2 = x6 && x1 = x5 && x4 = x4 && -1 * x2 + x3 <= 0 l3(x8, x9, x10, x11) -> l1(x12, x13, x14, x15) :|: x11 = x15 && x10 = x14 && x8 = x12 && x13 = 0 l1(x16, x17, x18, x19) -> l0(x20, x21, x22, x23) :|: x19 = x23 && x16 = x20 && x22 = 1 + x18 && x21 = 1 && 0 <= -1 * x17 && 0 <= -1 - x18 + x19 l1(x24, x25, x26, x27) -> l2(x28, x29, x30, x31) :|: x27 = x31 && x26 = x30 && x25 = x29 && x28 = x28 && -1 * x26 + x27 <= 0 l4(x32, x33, x34, x35) -> l3(x36, x37, x38, x39) :|: x35 = x39 && x34 = x38 && x33 = x37 && x32 = x36 Start term: l4(Result_4HAT0, b_7HAT0, x_5HAT0, y_6HAT0) ---------------------------------------- (3) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) l0(Result_4HAT0, b_7HAT0, x_5HAT0, y_6HAT0) -> l1(Result_4HATpost, b_7HATpost, x_5HATpost, y_6HATpost) :|: x_5HAT0 = x_5HATpost && Result_4HAT0 = Result_4HATpost && y_6HATpost = -1 + y_6HAT0 && b_7HATpost = 0 && 1 - b_7HAT0 <= 0 && 0 <= -1 - x_5HAT0 + y_6HAT0 (2) l0(x, x1, x2, x3) -> l2(x4, x5, x6, x7) :|: x3 = x7 && x2 = x6 && x1 = x5 && x4 = x4 && -1 * x2 + x3 <= 0 (3) l3(x8, x9, x10, x11) -> l1(x12, x13, x14, x15) :|: x11 = x15 && x10 = x14 && x8 = x12 && x13 = 0 (4) l1(x16, x17, x18, x19) -> l0(x20, x21, x22, x23) :|: x19 = x23 && x16 = x20 && x22 = 1 + x18 && x21 = 1 && 0 <= -1 * x17 && 0 <= -1 - x18 + x19 (5) l1(x24, x25, x26, x27) -> l2(x28, x29, x30, x31) :|: x27 = x31 && x26 = x30 && x25 = x29 && x28 = x28 && -1 * x26 + x27 <= 0 (6) l4(x32, x33, x34, x35) -> l3(x36, x37, x38, x39) :|: x35 = x39 && x34 = x38 && x33 = x37 && x32 = x36 Arcs: (1) -> (4), (5) (3) -> (4), (5) (4) -> (1), (2) (6) -> (3) This digraph is fully evaluated! ---------------------------------------- (4) Obligation: Termination digraph: Nodes: (1) l0(Result_4HAT0, b_7HAT0, x_5HAT0, y_6HAT0) -> l1(Result_4HATpost, b_7HATpost, x_5HATpost, y_6HATpost) :|: x_5HAT0 = x_5HATpost && Result_4HAT0 = Result_4HATpost && y_6HATpost = -1 + y_6HAT0 && b_7HATpost = 0 && 1 - b_7HAT0 <= 0 && 0 <= -1 - x_5HAT0 + y_6HAT0 (2) l1(x16, x17, x18, x19) -> l0(x20, x21, x22, x23) :|: x19 = x23 && x16 = x20 && x22 = 1 + x18 && x21 = 1 && 0 <= -1 * x17 && 0 <= -1 - x18 + x19 Arcs: (1) -> (2) (2) -> (1) This digraph is fully evaluated! ---------------------------------------- (5) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (6) Obligation: Rules: l0(Result_4HAT0:0, b_7HAT0:0, x_5HAT0:0, y_6HAT0:0) -> l0(Result_4HAT0:0, 1, 1 + x_5HAT0:0, -1 + y_6HAT0:0) :|: 0 <= -1 - x_5HAT0:0 + (-1 + y_6HAT0:0) && b_7HAT0:0 > 0 && 0 <= -1 - x_5HAT0:0 + y_6HAT0:0 ---------------------------------------- (7) IntTRSUnneededArgumentFilterProof (EQUIVALENT) Some arguments are removed because they cannot influence termination. We removed arguments according to the following replacements: l0(x1, x2, x3, x4) -> l0(x2, x3, x4) ---------------------------------------- (8) Obligation: Rules: l0(b_7HAT0:0, x_5HAT0:0, y_6HAT0:0) -> l0(1, 1 + x_5HAT0:0, -1 + y_6HAT0:0) :|: 0 <= -1 - x_5HAT0:0 + (-1 + y_6HAT0:0) && b_7HAT0:0 > 0 && 0 <= -1 - x_5HAT0:0 + y_6HAT0:0 ---------------------------------------- (9) TempFilterProof (SOUND) Used the following sort dictionary for filtering: l0(VARIABLE, INTEGER, INTEGER) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (10) Obligation: Rules: l0(b_7HAT0:0, x_5HAT0:0, y_6HAT0:0) -> l0(c, c1, c2) :|: c2 = -1 + y_6HAT0:0 && (c1 = 1 + x_5HAT0:0 && c = 1) && (0 <= -1 - x_5HAT0:0 + (-1 + y_6HAT0:0) && b_7HAT0:0 > 0 && 0 <= -1 - x_5HAT0:0 + y_6HAT0:0) ---------------------------------------- (11) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [l0(x, x1, x2)] = -1 - x1 + x2 The following rules are decreasing: l0(b_7HAT0:0, x_5HAT0:0, y_6HAT0:0) -> l0(c, c1, c2) :|: c2 = -1 + y_6HAT0:0 && (c1 = 1 + x_5HAT0:0 && c = 1) && (0 <= -1 - x_5HAT0:0 + (-1 + y_6HAT0:0) && b_7HAT0:0 > 0 && 0 <= -1 - x_5HAT0:0 + y_6HAT0:0) The following rules are bounded: l0(b_7HAT0:0, x_5HAT0:0, y_6HAT0:0) -> l0(c, c1, c2) :|: c2 = -1 + y_6HAT0:0 && (c1 = 1 + x_5HAT0:0 && c = 1) && (0 <= -1 - x_5HAT0:0 + (-1 + y_6HAT0:0) && b_7HAT0:0 > 0 && 0 <= -1 - x_5HAT0:0 + y_6HAT0:0) ---------------------------------------- (12) YES