YES proof of prog.inttrs # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Termination of the given IRSwT could be proven: (0) IRSwT (1) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (2) IRSwT (3) IRSwTTerminationDigraphProof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, 286 ms] (4) IRSwT (5) IntTRSCompressionProof [EQUIVALENT, 23 ms] (6) IRSwT (7) IntTRSUnneededArgumentFilterProof [EQUIVALENT, 0 ms] (8) IRSwT (9) TempFilterProof [SOUND, 44 ms] (10) IntTRS (11) PolynomialOrderProcessor [EQUIVALENT, 0 ms] (12) YES ---------------------------------------- (0) Obligation: Rules: l0(Result_4HAT0, k_7HAT0, w_8HAT0, x_5HAT0, y_6HAT0) -> l2(Result_4HATpost, k_7HATpost, w_8HATpost, x_5HATpost, y_6HATpost) :|: w_8HAT0 = w_8HATpost && k_7HAT0 = k_7HATpost && Result_4HAT0 = Result_4HATpost && y_6HATpost = 1 + y_6HAT0 && x_5HATpost = 1 + x_5HAT0 && 0 <= -2 - x_5HAT0 l2(x, x1, x2, x3, x4) -> l1(x5, x6, x7, x8, x9) :|: x4 = x9 && x3 = x8 && x2 = x7 && x1 = x6 && x = x5 && 1 + x4 <= 0 l2(x10, x11, x12, x13, x14) -> l1(x15, x16, x17, x18, x19) :|: x14 = x19 && x13 = x18 && x12 = x17 && x11 = x16 && x10 = x15 && 1 <= x14 l1(x20, x21, x22, x23, x24) -> l0(x25, x26, x27, x28, x29) :|: x24 = x29 && x23 = x28 && x22 = x27 && x21 = x26 && x20 = x25 l0(x30, x31, x32, x33, x34) -> l3(x35, x36, x37, x38, x39) :|: x34 = x39 && x33 = x38 && x32 = x37 && x31 = x36 && x35 = x35 && -1 - x33 <= 0 l4(x40, x41, x42, x43, x44) -> l0(x45, x46, x47, x48, x49) :|: x44 = x49 && x43 = x48 && x42 = x47 && x41 = x46 && x40 = x45 && 0 <= -2 + x42 && 0 <= -2 + x41 l4(x50, x51, x52, x53, x54) -> l3(x55, x56, x57, x58, x59) :|: x54 = x59 && x53 = x58 && x52 = x57 && x51 = x56 && x55 = x55 && -1 + x51 <= 0 l5(x60, x61, x62, x63, x64) -> l4(x65, x66, x67, x68, x69) :|: x64 = x69 && x63 = x68 && x62 = x67 && x61 = x66 && x60 = x65 Start term: l5(Result_4HAT0, k_7HAT0, w_8HAT0, 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, k_7HAT0, w_8HAT0, x_5HAT0, y_6HAT0) -> l2(Result_4HATpost, k_7HATpost, w_8HATpost, x_5HATpost, y_6HATpost) :|: w_8HAT0 = w_8HATpost && k_7HAT0 = k_7HATpost && Result_4HAT0 = Result_4HATpost && y_6HATpost = 1 + y_6HAT0 && x_5HATpost = 1 + x_5HAT0 && 0 <= -2 - x_5HAT0 l2(x, x1, x2, x3, x4) -> l1(x5, x6, x7, x8, x9) :|: x4 = x9 && x3 = x8 && x2 = x7 && x1 = x6 && x = x5 && 1 + x4 <= 0 l2(x10, x11, x12, x13, x14) -> l1(x15, x16, x17, x18, x19) :|: x14 = x19 && x13 = x18 && x12 = x17 && x11 = x16 && x10 = x15 && 1 <= x14 l1(x20, x21, x22, x23, x24) -> l0(x25, x26, x27, x28, x29) :|: x24 = x29 && x23 = x28 && x22 = x27 && x21 = x26 && x20 = x25 l0(x30, x31, x32, x33, x34) -> l3(x35, x36, x37, x38, x39) :|: x34 = x39 && x33 = x38 && x32 = x37 && x31 = x36 && x35 = x35 && -1 - x33 <= 0 l4(x40, x41, x42, x43, x44) -> l0(x45, x46, x47, x48, x49) :|: x44 = x49 && x43 = x48 && x42 = x47 && x41 = x46 && x40 = x45 && 0 <= -2 + x42 && 0 <= -2 + x41 l4(x50, x51, x52, x53, x54) -> l3(x55, x56, x57, x58, x59) :|: x54 = x59 && x53 = x58 && x52 = x57 && x51 = x56 && x55 = x55 && -1 + x51 <= 0 l5(x60, x61, x62, x63, x64) -> l4(x65, x66, x67, x68, x69) :|: x64 = x69 && x63 = x68 && x62 = x67 && x61 = x66 && x60 = x65 Start term: l5(Result_4HAT0, k_7HAT0, w_8HAT0, x_5HAT0, y_6HAT0) ---------------------------------------- (3) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) l0(Result_4HAT0, k_7HAT0, w_8HAT0, x_5HAT0, y_6HAT0) -> l2(Result_4HATpost, k_7HATpost, w_8HATpost, x_5HATpost, y_6HATpost) :|: w_8HAT0 = w_8HATpost && k_7HAT0 = k_7HATpost && Result_4HAT0 = Result_4HATpost && y_6HATpost = 1 + y_6HAT0 && x_5HATpost = 1 + x_5HAT0 && 0 <= -2 - x_5HAT0 (2) l2(x, x1, x2, x3, x4) -> l1(x5, x6, x7, x8, x9) :|: x4 = x9 && x3 = x8 && x2 = x7 && x1 = x6 && x = x5 && 1 + x4 <= 0 (3) l2(x10, x11, x12, x13, x14) -> l1(x15, x16, x17, x18, x19) :|: x14 = x19 && x13 = x18 && x12 = x17 && x11 = x16 && x10 = x15 && 1 <= x14 (4) l1(x20, x21, x22, x23, x24) -> l0(x25, x26, x27, x28, x29) :|: x24 = x29 && x23 = x28 && x22 = x27 && x21 = x26 && x20 = x25 (5) l0(x30, x31, x32, x33, x34) -> l3(x35, x36, x37, x38, x39) :|: x34 = x39 && x33 = x38 && x32 = x37 && x31 = x36 && x35 = x35 && -1 - x33 <= 0 (6) l4(x40, x41, x42, x43, x44) -> l0(x45, x46, x47, x48, x49) :|: x44 = x49 && x43 = x48 && x42 = x47 && x41 = x46 && x40 = x45 && 0 <= -2 + x42 && 0 <= -2 + x41 (7) l4(x50, x51, x52, x53, x54) -> l3(x55, x56, x57, x58, x59) :|: x54 = x59 && x53 = x58 && x52 = x57 && x51 = x56 && x55 = x55 && -1 + x51 <= 0 (8) l5(x60, x61, x62, x63, x64) -> l4(x65, x66, x67, x68, x69) :|: x64 = x69 && x63 = x68 && x62 = x67 && x61 = x66 && x60 = x65 Arcs: (1) -> (2), (3) (2) -> (4) (3) -> (4) (4) -> (1), (5) (6) -> (1), (5) (8) -> (6), (7) This digraph is fully evaluated! ---------------------------------------- (4) Obligation: Termination digraph: Nodes: (1) l0(Result_4HAT0, k_7HAT0, w_8HAT0, x_5HAT0, y_6HAT0) -> l2(Result_4HATpost, k_7HATpost, w_8HATpost, x_5HATpost, y_6HATpost) :|: w_8HAT0 = w_8HATpost && k_7HAT0 = k_7HATpost && Result_4HAT0 = Result_4HATpost && y_6HATpost = 1 + y_6HAT0 && x_5HATpost = 1 + x_5HAT0 && 0 <= -2 - x_5HAT0 (2) l1(x20, x21, x22, x23, x24) -> l0(x25, x26, x27, x28, x29) :|: x24 = x29 && x23 = x28 && x22 = x27 && x21 = x26 && x20 = x25 (3) l2(x10, x11, x12, x13, x14) -> l1(x15, x16, x17, x18, x19) :|: x14 = x19 && x13 = x18 && x12 = x17 && x11 = x16 && x10 = x15 && 1 <= x14 (4) l2(x, x1, x2, x3, x4) -> l1(x5, x6, x7, x8, x9) :|: x4 = x9 && x3 = x8 && x2 = x7 && x1 = x6 && x = x5 && 1 + x4 <= 0 Arcs: (1) -> (3), (4) (2) -> (1) (3) -> (2) (4) -> (2) This digraph is fully evaluated! ---------------------------------------- (5) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (6) Obligation: Rules: l1(Result_4HATpost:0, k_7HATpost:0, w_8HATpost:0, x23:0, x24:0) -> l1(Result_4HATpost:0, k_7HATpost:0, w_8HATpost:0, 1 + x23:0, 1 + x24:0) :|: x23:0 < -1 && x24:0 < -1 l1(x, x1, x2, x3, x4) -> l1(x, x1, x2, 1 + x3, 1 + x4) :|: x3 < -1 && x4 > -1 ---------------------------------------- (7) IntTRSUnneededArgumentFilterProof (EQUIVALENT) Some arguments are removed because they cannot influence termination. We removed arguments according to the following replacements: l1(x1, x2, x3, x4, x5) -> l1(x4, x5) ---------------------------------------- (8) Obligation: Rules: l1(x23:0, x24:0) -> l1(1 + x23:0, 1 + x24:0) :|: x23:0 < -1 && x24:0 < -1 l1(x3, x4) -> l1(1 + x3, 1 + x4) :|: x3 < -1 && x4 > -1 ---------------------------------------- (9) TempFilterProof (SOUND) Used the following sort dictionary for filtering: l1(INTEGER, INTEGER) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (10) Obligation: Rules: l1(x23:0, x24:0) -> l1(c, c1) :|: c1 = 1 + x24:0 && c = 1 + x23:0 && (x23:0 < -1 && x24:0 < -1) l1(x3, x4) -> l1(c2, c3) :|: c3 = 1 + x4 && c2 = 1 + x3 && (x3 < -1 && x4 > -1) ---------------------------------------- (11) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [l1(x, x1)] = -x The following rules are decreasing: l1(x23:0, x24:0) -> l1(c, c1) :|: c1 = 1 + x24:0 && c = 1 + x23:0 && (x23:0 < -1 && x24:0 < -1) l1(x3, x4) -> l1(c2, c3) :|: c3 = 1 + x4 && c2 = 1 + x3 && (x3 < -1 && x4 > -1) The following rules are bounded: l1(x23:0, x24:0) -> l1(c, c1) :|: c1 = 1 + x24:0 && c = 1 + x23:0 && (x23:0 < -1 && x24:0 < -1) l1(x3, x4) -> l1(c2, c3) :|: c3 = 1 + x4 && c2 = 1 + x3 && (x3 < -1 && x4 > -1) ---------------------------------------- (12) YES