NO proof of prog.inttrs # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Termination of the given IRSwT could be disproven: (0) IRSwT (1) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (2) IRSwT (3) IRSwTTerminationDigraphProof [EQUIVALENT, 1139 ms] (4) AND (5) IRSwT (6) IntTRSCompressionProof [EQUIVALENT, 28 ms] (7) IRSwT (8) FilterProof [EQUIVALENT, 0 ms] (9) IntTRS (10) IntTRSNonPeriodicNontermProof [COMPLETE, 0 ms] (11) NO (12) IRSwT (13) IntTRSCompressionProof [EQUIVALENT, 13 ms] (14) IRSwT (15) IntTRSUnneededArgumentFilterProof [EQUIVALENT, 0 ms] (16) IRSwT (17) IRSwTChainingProof [EQUIVALENT, 0 ms] (18) IRSwT (19) IRSwTTerminationDigraphProof [EQUIVALENT, 92 ms] (20) AND (21) IRSwT (22) IntTRSCompressionProof [EQUIVALENT, 0 ms] (23) IRSwT (24) IRSwT (25) IntTRSCompressionProof [EQUIVALENT, 0 ms] (26) IRSwT (27) FilterProof [EQUIVALENT, 0 ms] (28) IntTRS (29) IntTRSPeriodicNontermProof [COMPLETE, 0 ms] (30) NO ---------------------------------------- (0) Obligation: Rules: l0(WItemsNumHAT0, __const_5HAT0, tmp1HAT0) -> l1(WItemsNumHATpost, __const_5HATpost, tmp1HATpost) :|: tmp1HAT0 = tmp1HATpost && __const_5HAT0 = __const_5HATpost && WItemsNumHAT0 = WItemsNumHATpost && 1 + __const_5HAT0 <= WItemsNumHAT0 l0(x, x1, x2) -> l2(x3, x4, x5) :|: x1 = x4 && x = x3 && x5 = x5 && x <= x1 l3(x6, x7, x8) -> l4(x9, x10, x11) :|: x8 = x11 && x7 = x10 && x6 = x9 l4(x12, x13, x14) -> l0(x15, x16, x17) :|: x14 = x17 && x13 = x16 && x12 = x15 l5(x18, x19, x20) -> l6(x21, x22, x23) :|: x20 = x23 && x19 = x22 && x18 = x21 l7(x24, x25, x26) -> l8(x27, x28, x29) :|: x26 = x29 && x25 = x28 && x24 = x27 l9(x30, x31, x32) -> l10(x33, x34, x35) :|: x32 = x35 && x31 = x34 && x30 = x33 l6(x36, x37, x38) -> l3(x39, x40, x41) :|: x38 = x41 && x37 = x40 && x36 = x39 && x36 <= 2 l6(x42, x43, x44) -> l5(x45, x46, x47) :|: x44 = x47 && x43 = x46 && x45 = -1 + x42 && 3 <= x42 l10(x48, x49, x50) -> l11(x51, x52, x53) :|: x50 = x53 && x49 = x52 && x48 = x51 l11(x54, x55, x56) -> l10(x57, x58, x59) :|: x56 = x59 && x55 = x58 && x54 = x57 l1(x60, x61, x62) -> l5(x63, x64, x65) :|: x62 = x65 && x61 = x64 && x60 = x63 l12(x66, x67, x68) -> l4(x69, x70, x71) :|: x68 = x71 && x67 = x70 && x69 = 1 + x66 && 1 + x67 <= x66 l12(x72, x73, x74) -> l4(x75, x76, x77) :|: x74 = x77 && x73 = x76 && x75 = 1 + x72 && x72 <= x73 l2(x78, x79, x80) -> l1(x81, x82, x83) :|: x80 = x83 && x79 = x82 && x78 = x81 && 0 <= x80 && x80 <= 0 l2(x84, x85, x86) -> l12(x87, x88, x89) :|: x86 = x89 && x85 = x88 && x84 = x87 && 1 <= x86 l2(x90, x91, x92) -> l12(x93, x94, x95) :|: x92 = x95 && x91 = x94 && x90 = x93 && 1 + x92 <= 0 l13(x96, x97, x98) -> l3(x99, x100, x101) :|: x102 = x102 && x99 = x99 && x97 = x100 && x98 = x101 l14(x103, x104, x105) -> l13(x106, x107, x108) :|: x105 = x108 && x104 = x107 && x103 = x106 Start term: l14(WItemsNumHAT0, __const_5HAT0, tmp1HAT0) ---------------------------------------- (1) IRSFormatTransformerProof (EQUIVALENT) Reformatted IRS to match normalized format (transformed away non-linear left-hand sides, !=, / and %). ---------------------------------------- (2) Obligation: Rules: l0(WItemsNumHAT0, __const_5HAT0, tmp1HAT0) -> l1(WItemsNumHATpost, __const_5HATpost, tmp1HATpost) :|: tmp1HAT0 = tmp1HATpost && __const_5HAT0 = __const_5HATpost && WItemsNumHAT0 = WItemsNumHATpost && 1 + __const_5HAT0 <= WItemsNumHAT0 l0(x, x1, x2) -> l2(x3, x4, x5) :|: x1 = x4 && x = x3 && x5 = x5 && x <= x1 l3(x6, x7, x8) -> l4(x9, x10, x11) :|: x8 = x11 && x7 = x10 && x6 = x9 l4(x12, x13, x14) -> l0(x15, x16, x17) :|: x14 = x17 && x13 = x16 && x12 = x15 l5(x18, x19, x20) -> l6(x21, x22, x23) :|: x20 = x23 && x19 = x22 && x18 = x21 l7(x24, x25, x26) -> l8(x27, x28, x29) :|: x26 = x29 && x25 = x28 && x24 = x27 l9(x30, x31, x32) -> l10(x33, x34, x35) :|: x32 = x35 && x31 = x34 && x30 = x33 l6(x36, x37, x38) -> l3(x39, x40, x41) :|: x38 = x41 && x37 = x40 && x36 = x39 && x36 <= 2 l6(x42, x43, x44) -> l5(x45, x46, x47) :|: x44 = x47 && x43 = x46 && x45 = -1 + x42 && 3 <= x42 l10(x48, x49, x50) -> l11(x51, x52, x53) :|: x50 = x53 && x49 = x52 && x48 = x51 l11(x54, x55, x56) -> l10(x57, x58, x59) :|: x56 = x59 && x55 = x58 && x54 = x57 l1(x60, x61, x62) -> l5(x63, x64, x65) :|: x62 = x65 && x61 = x64 && x60 = x63 l12(x66, x67, x68) -> l4(x69, x70, x71) :|: x68 = x71 && x67 = x70 && x69 = 1 + x66 && 1 + x67 <= x66 l12(x72, x73, x74) -> l4(x75, x76, x77) :|: x74 = x77 && x73 = x76 && x75 = 1 + x72 && x72 <= x73 l2(x78, x79, x80) -> l1(x81, x82, x83) :|: x80 = x83 && x79 = x82 && x78 = x81 && 0 <= x80 && x80 <= 0 l2(x84, x85, x86) -> l12(x87, x88, x89) :|: x86 = x89 && x85 = x88 && x84 = x87 && 1 <= x86 l2(x90, x91, x92) -> l12(x93, x94, x95) :|: x92 = x95 && x91 = x94 && x90 = x93 && 1 + x92 <= 0 l13(x96, x97, x98) -> l3(x99, x100, x101) :|: x102 = x102 && x99 = x99 && x97 = x100 && x98 = x101 l14(x103, x104, x105) -> l13(x106, x107, x108) :|: x105 = x108 && x104 = x107 && x103 = x106 Start term: l14(WItemsNumHAT0, __const_5HAT0, tmp1HAT0) ---------------------------------------- (3) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) l0(WItemsNumHAT0, __const_5HAT0, tmp1HAT0) -> l1(WItemsNumHATpost, __const_5HATpost, tmp1HATpost) :|: tmp1HAT0 = tmp1HATpost && __const_5HAT0 = __const_5HATpost && WItemsNumHAT0 = WItemsNumHATpost && 1 + __const_5HAT0 <= WItemsNumHAT0 (2) l0(x, x1, x2) -> l2(x3, x4, x5) :|: x1 = x4 && x = x3 && x5 = x5 && x <= x1 (3) l3(x6, x7, x8) -> l4(x9, x10, x11) :|: x8 = x11 && x7 = x10 && x6 = x9 (4) l4(x12, x13, x14) -> l0(x15, x16, x17) :|: x14 = x17 && x13 = x16 && x12 = x15 (5) l5(x18, x19, x20) -> l6(x21, x22, x23) :|: x20 = x23 && x19 = x22 && x18 = x21 (6) l7(x24, x25, x26) -> l8(x27, x28, x29) :|: x26 = x29 && x25 = x28 && x24 = x27 (7) l9(x30, x31, x32) -> l10(x33, x34, x35) :|: x32 = x35 && x31 = x34 && x30 = x33 (8) l6(x36, x37, x38) -> l3(x39, x40, x41) :|: x38 = x41 && x37 = x40 && x36 = x39 && x36 <= 2 (9) l6(x42, x43, x44) -> l5(x45, x46, x47) :|: x44 = x47 && x43 = x46 && x45 = -1 + x42 && 3 <= x42 (10) l10(x48, x49, x50) -> l11(x51, x52, x53) :|: x50 = x53 && x49 = x52 && x48 = x51 (11) l11(x54, x55, x56) -> l10(x57, x58, x59) :|: x56 = x59 && x55 = x58 && x54 = x57 (12) l1(x60, x61, x62) -> l5(x63, x64, x65) :|: x62 = x65 && x61 = x64 && x60 = x63 (13) l12(x66, x67, x68) -> l4(x69, x70, x71) :|: x68 = x71 && x67 = x70 && x69 = 1 + x66 && 1 + x67 <= x66 (14) l12(x72, x73, x74) -> l4(x75, x76, x77) :|: x74 = x77 && x73 = x76 && x75 = 1 + x72 && x72 <= x73 (15) l2(x78, x79, x80) -> l1(x81, x82, x83) :|: x80 = x83 && x79 = x82 && x78 = x81 && 0 <= x80 && x80 <= 0 (16) l2(x84, x85, x86) -> l12(x87, x88, x89) :|: x86 = x89 && x85 = x88 && x84 = x87 && 1 <= x86 (17) l2(x90, x91, x92) -> l12(x93, x94, x95) :|: x92 = x95 && x91 = x94 && x90 = x93 && 1 + x92 <= 0 (18) l13(x96, x97, x98) -> l3(x99, x100, x101) :|: x102 = x102 && x99 = x99 && x97 = x100 && x98 = x101 (19) l14(x103, x104, x105) -> l13(x106, x107, x108) :|: x105 = x108 && x104 = x107 && x103 = x106 Arcs: (1) -> (12) (2) -> (15), (16), (17) (3) -> (4) (4) -> (1), (2) (5) -> (8), (9) (7) -> (10) (8) -> (3) (9) -> (5) (10) -> (11) (11) -> (10) (12) -> (5) (13) -> (4) (14) -> (4) (15) -> (12) (16) -> (13), (14) (17) -> (13), (14) (18) -> (3) (19) -> (18) This digraph is fully evaluated! ---------------------------------------- (4) Complex Obligation (AND) ---------------------------------------- (5) Obligation: Termination digraph: Nodes: (1) l10(x48, x49, x50) -> l11(x51, x52, x53) :|: x50 = x53 && x49 = x52 && x48 = x51 (2) l11(x54, x55, x56) -> l10(x57, x58, x59) :|: x56 = x59 && x55 = x58 && x54 = x57 Arcs: (1) -> (2) (2) -> (1) This digraph is fully evaluated! ---------------------------------------- (6) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (7) Obligation: Rules: l10(x48:0, x49:0, x50:0) -> l10(x48:0, x49:0, x50:0) :|: TRUE ---------------------------------------- (8) FilterProof (EQUIVALENT) Used the following sort dictionary for filtering: l10(VARIABLE, VARIABLE, VARIABLE) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (9) Obligation: Rules: l10(x48:0, x49:0, x50:0) -> l10(x48:0, x49:0, x50:0) :|: TRUE ---------------------------------------- (10) IntTRSNonPeriodicNontermProof (COMPLETE) Normalized system to the following form: f(pc, x48:0, x49:0, x50:0) -> f(1, x48:0, x49:0, x50:0) :|: pc = 1 && TRUE Proved unsatisfiability of the following formula, indicating that the system is never left after entering: (((run2_0 = ((1 * 1)) and run2_1 = ((run1_1 * 1)) and run2_2 = ((run1_2 * 1)) and run2_3 = ((run1_3 * 1))) and (((run1_0 * 1)) = ((1 * 1)) and T)) and !(((run2_0 * 1)) = ((1 * 1)) and T)) Proved satisfiability of the following formula, indicating that the system is entered at least once: ((run2_0 = ((1 * 1)) and run2_1 = ((run1_1 * 1)) and run2_2 = ((run1_2 * 1)) and run2_3 = ((run1_3 * 1))) and (((run1_0 * 1)) = ((1 * 1)) and T)) ---------------------------------------- (11) NO ---------------------------------------- (12) Obligation: Termination digraph: Nodes: (1) l0(WItemsNumHAT0, __const_5HAT0, tmp1HAT0) -> l1(WItemsNumHATpost, __const_5HATpost, tmp1HATpost) :|: tmp1HAT0 = tmp1HATpost && __const_5HAT0 = __const_5HATpost && WItemsNumHAT0 = WItemsNumHATpost && 1 + __const_5HAT0 <= WItemsNumHAT0 (2) l4(x12, x13, x14) -> l0(x15, x16, x17) :|: x14 = x17 && x13 = x16 && x12 = x15 (3) l12(x72, x73, x74) -> l4(x75, x76, x77) :|: x74 = x77 && x73 = x76 && x75 = 1 + x72 && x72 <= x73 (4) l12(x66, x67, x68) -> l4(x69, x70, x71) :|: x68 = x71 && x67 = x70 && x69 = 1 + x66 && 1 + x67 <= x66 (5) l2(x90, x91, x92) -> l12(x93, x94, x95) :|: x92 = x95 && x91 = x94 && x90 = x93 && 1 + x92 <= 0 (6) l2(x84, x85, x86) -> l12(x87, x88, x89) :|: x86 = x89 && x85 = x88 && x84 = x87 && 1 <= x86 (7) l3(x6, x7, x8) -> l4(x9, x10, x11) :|: x8 = x11 && x7 = x10 && x6 = x9 (8) l6(x36, x37, x38) -> l3(x39, x40, x41) :|: x38 = x41 && x37 = x40 && x36 = x39 && x36 <= 2 (9) l5(x18, x19, x20) -> l6(x21, x22, x23) :|: x20 = x23 && x19 = x22 && x18 = x21 (10) l1(x60, x61, x62) -> l5(x63, x64, x65) :|: x62 = x65 && x61 = x64 && x60 = x63 (11) l2(x78, x79, x80) -> l1(x81, x82, x83) :|: x80 = x83 && x79 = x82 && x78 = x81 && 0 <= x80 && x80 <= 0 (12) l0(x, x1, x2) -> l2(x3, x4, x5) :|: x1 = x4 && x = x3 && x5 = x5 && x <= x1 (13) l6(x42, x43, x44) -> l5(x45, x46, x47) :|: x44 = x47 && x43 = x46 && x45 = -1 + x42 && 3 <= x42 Arcs: (1) -> (10) (2) -> (1), (12) (3) -> (2) (4) -> (2) (5) -> (3), (4) (6) -> (3), (4) (7) -> (2) (8) -> (7) (9) -> (8), (13) (10) -> (9) (11) -> (10) (12) -> (5), (6), (11) (13) -> (9) This digraph is fully evaluated! ---------------------------------------- (13) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (14) Obligation: Rules: l5(x18:0, x10:0, x11:0) -> l4(x18:0, x10:0, x11:0) :|: x18:0 < 3 l4(x12:0, x13:0, x14:0) -> l12(x12:0, x13:0, x5:0) :|: x5:0 < 0 && x13:0 >= x12:0 l4(x, x1, x2) -> l12(x, x1, x3) :|: x3 > 0 && x1 >= x l12(x66:0, x67:0, x68:0) -> l4(1 + x66:0, x67:0, x68:0) :|: x66:0 >= 1 + x67:0 l12(x72:0, x73:0, x74:0) -> l4(1 + x72:0, x73:0, x74:0) :|: x73:0 >= x72:0 l4(WItemsNumHATpost:0, __const_5HATpost:0, tmp1HATpost:0) -> l5(WItemsNumHATpost:0, __const_5HATpost:0, tmp1HATpost:0) :|: WItemsNumHATpost:0 >= 1 + __const_5HATpost:0 l5(x4, x5, x6) -> l5(-1 + x4, x5, x6) :|: x4 > 2 l4(x7, x8, x9) -> l5(x7, x8, x10) :|: x10 < 1 && x10 > -1 && x8 >= x7 ---------------------------------------- (15) IntTRSUnneededArgumentFilterProof (EQUIVALENT) Some arguments are removed because they cannot influence termination. We removed arguments according to the following replacements: l5(x1, x2, x3) -> l5(x1, x2) l4(x1, x2, x3) -> l4(x1, x2) l12(x1, x2, x3) -> l12(x1, x2) ---------------------------------------- (16) Obligation: Rules: l5(x18:0, x10:0) -> l4(x18:0, x10:0) :|: x18:0 < 3 l4(x12:0, x13:0) -> l12(x12:0, x13:0) :|: x5:0 < 0 && x13:0 >= x12:0 l4(x, x1) -> l12(x, x1) :|: x3 > 0 && x1 >= x l12(x66:0, x67:0) -> l4(1 + x66:0, x67:0) :|: x66:0 >= 1 + x67:0 l12(x72:0, x73:0) -> l4(1 + x72:0, x73:0) :|: x73:0 >= x72:0 l4(WItemsNumHATpost:0, __const_5HATpost:0) -> l5(WItemsNumHATpost:0, __const_5HATpost:0) :|: WItemsNumHATpost:0 >= 1 + __const_5HATpost:0 l5(x4, x5) -> l5(-1 + x4, x5) :|: x4 > 2 l4(x7, x8) -> l5(x7, x8) :|: x10 < 1 && x10 > -1 && x8 >= x7 ---------------------------------------- (17) IRSwTChainingProof (EQUIVALENT) Chaining! ---------------------------------------- (18) Obligation: Rules: l4(x12:0, x13:0) -> l12(x12:0, x13:0) :|: x5:0 < 0 && x13:0 >= x12:0 l5(x12, x13) -> l12(x12, x13) :|: TRUE && x12 <= 2 && x16 <= -1 && x13 + -1 * x12 >= 0 l4(x, x1) -> l12(x, x1) :|: x3 > 0 && x1 >= x l5(x17, x18) -> l12(x17, x18) :|: TRUE && x17 <= 2 && x21 >= 1 && x18 + -1 * x17 >= 0 l12(x66:0, x67:0) -> l4(1 + x66:0, x67:0) :|: x66:0 >= 1 + x67:0 l12(x72:0, x73:0) -> l4(1 + x72:0, x73:0) :|: x73:0 >= x72:0 l4(WItemsNumHATpost:0, __const_5HATpost:0) -> l5(WItemsNumHATpost:0, __const_5HATpost:0) :|: WItemsNumHATpost:0 >= 1 + __const_5HATpost:0 l5(x30, x31) -> l5(x30, x31) :|: TRUE && x30 <= 2 && x30 + -1 * x31 >= 1 l5(x4, x5) -> l5(-1 + x4, x5) :|: x4 > 2 l4(x7, x8) -> l5(x7, x8) :|: x10 < 1 && x10 > -1 && x8 >= x7 l5(x38, x39) -> l5(x38, x39) :|: TRUE && x38 <= 2 && x42 <= 0 && x42 >= 0 && x39 + -1 * x38 >= 0 ---------------------------------------- (19) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) l4(x12:0, x13:0) -> l12(x12:0, x13:0) :|: x5:0 < 0 && x13:0 >= x12:0 (2) l5(x12, x13) -> l12(x12, x13) :|: TRUE && x12 <= 2 && x16 <= -1 && x13 + -1 * x12 >= 0 (3) l4(x, x1) -> l12(x, x1) :|: x3 > 0 && x1 >= x (4) l5(x17, x18) -> l12(x17, x18) :|: TRUE && x17 <= 2 && x21 >= 1 && x18 + -1 * x17 >= 0 (5) l12(x66:0, x67:0) -> l4(1 + x66:0, x67:0) :|: x66:0 >= 1 + x67:0 (6) l12(x72:0, x73:0) -> l4(1 + x72:0, x73:0) :|: x73:0 >= x72:0 (7) l4(WItemsNumHATpost:0, __const_5HATpost:0) -> l5(WItemsNumHATpost:0, __const_5HATpost:0) :|: WItemsNumHATpost:0 >= 1 + __const_5HATpost:0 (8) l5(x30, x31) -> l5(x30, x31) :|: TRUE && x30 <= 2 && x30 + -1 * x31 >= 1 (9) l5(x4, x5) -> l5(-1 + x4, x5) :|: x4 > 2 (10) l4(x7, x8) -> l5(x7, x8) :|: x10 < 1 && x10 > -1 && x8 >= x7 (11) l5(x38, x39) -> l5(x38, x39) :|: TRUE && x38 <= 2 && x42 <= 0 && x42 >= 0 && x39 + -1 * x38 >= 0 Arcs: (1) -> (6) (2) -> (6) (3) -> (6) (4) -> (6) (5) -> (7) (6) -> (1), (3), (7), (10) (7) -> (8), (9) (8) -> (8) (9) -> (2), (4), (8), (9), (11) (10) -> (2), (4), (9), (11) (11) -> (2), (4), (11) This digraph is fully evaluated! ---------------------------------------- (20) Complex Obligation (AND) ---------------------------------------- (21) Obligation: Termination digraph: Nodes: (1) l4(x12:0, x13:0) -> l12(x12:0, x13:0) :|: x5:0 < 0 && x13:0 >= x12:0 (2) l12(x72:0, x73:0) -> l4(1 + x72:0, x73:0) :|: x73:0 >= x72:0 (3) l5(x17, x18) -> l12(x17, x18) :|: TRUE && x17 <= 2 && x21 >= 1 && x18 + -1 * x17 >= 0 (4) l4(x, x1) -> l12(x, x1) :|: x3 > 0 && x1 >= x (5) l5(x12, x13) -> l12(x12, x13) :|: TRUE && x12 <= 2 && x16 <= -1 && x13 + -1 * x12 >= 0 (6) l5(x38, x39) -> l5(x38, x39) :|: TRUE && x38 <= 2 && x42 <= 0 && x42 >= 0 && x39 + -1 * x38 >= 0 (7) l5(x4, x5) -> l5(-1 + x4, x5) :|: x4 > 2 (8) l4(x7, x8) -> l5(x7, x8) :|: x10 < 1 && x10 > -1 && x8 >= x7 (9) l4(WItemsNumHATpost:0, __const_5HATpost:0) -> l5(WItemsNumHATpost:0, __const_5HATpost:0) :|: WItemsNumHATpost:0 >= 1 + __const_5HATpost:0 Arcs: (1) -> (2) (2) -> (1), (4), (8), (9) (3) -> (2) (4) -> (2) (5) -> (2) (6) -> (3), (5), (6) (7) -> (3), (5), (6), (7) (8) -> (3), (5), (6), (7) (9) -> (7) This digraph is fully evaluated! ---------------------------------------- (22) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (23) Obligation: Rules: l5(x4:0, x5:0) -> l5(-1 + x4:0, x5:0) :|: x4:0 > 2 l5(x17:0, x18:0) -> l4(1 + x17:0, x18:0) :|: x18:0 + -1 * x17:0 >= 0 && x18:0 >= x17:0 && x17:0 < 3 && x21:0 > 0 l5(x38:0, x39:0) -> l5(x38:0, x39:0) :|: x42:0 > -1 && x39:0 + -1 * x38:0 >= 0 && x38:0 < 3 && x42:0 < 1 l4(WItemsNumHATpost:0:0, __const_5HATpost:0:0) -> l5(WItemsNumHATpost:0:0, __const_5HATpost:0:0) :|: WItemsNumHATpost:0:0 >= 1 + __const_5HATpost:0:0 l4(x7:0, x8:0) -> l5(x7:0, x8:0) :|: x10:0 < 1 && x10:0 > -1 && x8:0 >= x7:0 l4(x:0, x1:0) -> l4(1 + x:0, x1:0) :|: x:0 <= x1:0 && x3:0 > 0 l4(x12:0:0, x13:0:0) -> l4(1 + x12:0:0, x13:0:0) :|: x13:0:0 >= x12:0:0 && x5:0:0 < 0 l5(x12:0, x13:0) -> l4(1 + x12:0, x13:0) :|: x13:0 + -1 * x12:0 >= 0 && x13:0 >= x12:0 && x12:0 < 3 && x16:0 < 0 ---------------------------------------- (24) Obligation: Termination digraph: Nodes: (1) l5(x30, x31) -> l5(x30, x31) :|: TRUE && x30 <= 2 && x30 + -1 * x31 >= 1 Arcs: (1) -> (1) This digraph is fully evaluated! ---------------------------------------- (25) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (26) Obligation: Rules: l5(x30:0, x31:0) -> l5(x30:0, x31:0) :|: x30:0 + -1 * x31:0 >= 1 && x30:0 < 3 ---------------------------------------- (27) FilterProof (EQUIVALENT) Used the following sort dictionary for filtering: l5(INTEGER, INTEGER) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (28) Obligation: Rules: l5(x30:0, x31:0) -> l5(x30:0, x31:0) :|: x30:0 + -1 * x31:0 >= 1 && x30:0 < 3 ---------------------------------------- (29) IntTRSPeriodicNontermProof (COMPLETE) Normalized system to the following form: f(pc, x30:0, x31:0) -> f(1, x30:0, x31:0) :|: pc = 1 && (x30:0 + -1 * x31:0 >= 1 && x30:0 < 3) Witness term starting non-terminating reduction: f(1, 0, -4) ---------------------------------------- (30) NO