YES Problem: 0(1(2(x1))) -> 0(0(2(1(x1)))) 0(1(2(x1))) -> 0(2(1(3(x1)))) 0(1(2(x1))) -> 0(2(3(1(x1)))) 0(1(4(x1))) -> 0(4(1(1(0(0(x1)))))) 0(3(2(x1))) -> 0(0(2(3(x1)))) 0(3(2(x1))) -> 0(2(3(1(x1)))) 0(3(4(x1))) -> 0(0(4(3(x1)))) 0(4(5(x1))) -> 0(0(4(1(5(x1))))) 2(0(1(x1))) -> 0(2(1(1(x1)))) 2(4(1(x1))) -> 0(4(2(3(1(x1))))) 4(3(2(x1))) -> 4(2(3(1(x1)))) 0(1(0(1(x1)))) -> 0(0(3(1(1(x1))))) 0(1(0(2(x1)))) -> 0(0(2(1(1(1(x1)))))) 0(1(4(2(x1)))) -> 0(4(2(1(1(x1))))) 0(3(2(4(x1)))) -> 0(4(2(3(0(x1))))) 0(3(4(2(x1)))) -> 0(4(2(3(1(x1))))) 0(3(5(2(x1)))) -> 0(2(1(3(5(x1))))) 0(4(5(3(x1)))) -> 0(0(4(3(5(x1))))) 0(5(3(4(x1)))) -> 0(4(3(3(5(x1))))) 0(5(4(2(x1)))) -> 0(4(2(1(5(x1))))) 2(0(3(1(x1)))) -> 0(3(2(1(1(x1))))) 2(2(4(1(x1)))) -> 4(2(2(3(1(x1))))) 2(3(4(3(x1)))) -> 2(3(0(4(3(3(x1)))))) 2(4(1(1(x1)))) -> 2(0(4(1(1(x1))))) 2(4(1(3(x1)))) -> 0(4(3(2(1(x1))))) 2(4(3(2(x1)))) -> 2(0(4(2(3(x1))))) 2(5(4(3(x1)))) -> 0(4(2(3(5(x1))))) 4(2(0(3(x1)))) -> 2(3(0(4(3(x1))))) 4(3(4(3(x1)))) -> 4(3(0(4(3(x1))))) 0(1(5(3(2(x1))))) -> 0(5(0(3(2(1(x1)))))) 0(1(5(4(2(x1))))) -> 5(2(1(0(4(3(x1)))))) 0(1(5(4(5(x1))))) -> 0(4(1(2(5(5(x1)))))) 0(2(2(4(3(x1))))) -> 2(0(4(3(0(2(x1)))))) 0(3(0(4(5(x1))))) -> 5(0(0(4(3(2(x1)))))) 0(3(2(4(3(x1))))) -> 0(4(3(3(4(2(x1)))))) 0(4(2(5(4(x1))))) -> 0(4(2(1(5(4(x1)))))) 0(5(3(2(1(x1))))) -> 0(2(3(1(3(5(x1)))))) 0(5(4(1(4(x1))))) -> 4(0(4(1(5(0(x1)))))) 2(4(1(5(3(x1))))) -> 0(4(1(3(5(2(x1)))))) 2(4(2(0(1(x1))))) -> 2(1(1(2(0(4(x1)))))) 2(5(3(4(1(x1))))) -> 5(1(0(4(3(2(x1)))))) 4(0(1(5(4(x1))))) -> 4(0(0(4(1(5(x1)))))) 4(3(0(2(3(x1))))) -> 0(4(2(3(1(3(x1)))))) 4(4(1(2(3(x1))))) -> 0(4(4(2(3(1(x1)))))) 4(5(1(0(2(x1))))) -> 1(0(4(2(1(5(x1)))))) Proof: String Reversal Processor: 2(1(0(x1))) -> 1(2(0(0(x1)))) 2(1(0(x1))) -> 3(1(2(0(x1)))) 2(1(0(x1))) -> 1(3(2(0(x1)))) 4(1(0(x1))) -> 0(0(1(1(4(0(x1)))))) 2(3(0(x1))) -> 3(2(0(0(x1)))) 2(3(0(x1))) -> 1(3(2(0(x1)))) 4(3(0(x1))) -> 3(4(0(0(x1)))) 5(4(0(x1))) -> 5(1(4(0(0(x1))))) 1(0(2(x1))) -> 1(1(2(0(x1)))) 1(4(2(x1))) -> 1(3(2(4(0(x1))))) 2(3(4(x1))) -> 1(3(2(4(x1)))) 1(0(1(0(x1)))) -> 1(1(3(0(0(x1))))) 2(0(1(0(x1)))) -> 1(1(1(2(0(0(x1)))))) 2(4(1(0(x1)))) -> 1(1(2(4(0(x1))))) 4(2(3(0(x1)))) -> 0(3(2(4(0(x1))))) 2(4(3(0(x1)))) -> 1(3(2(4(0(x1))))) 2(5(3(0(x1)))) -> 5(3(1(2(0(x1))))) 3(5(4(0(x1)))) -> 5(3(4(0(0(x1))))) 4(3(5(0(x1)))) -> 5(3(3(4(0(x1))))) 2(4(5(0(x1)))) -> 5(1(2(4(0(x1))))) 1(3(0(2(x1)))) -> 1(1(2(3(0(x1))))) 1(4(2(2(x1)))) -> 1(3(2(2(4(x1))))) 3(4(3(2(x1)))) -> 3(3(4(0(3(2(x1)))))) 1(1(4(2(x1)))) -> 1(1(4(0(2(x1))))) 3(1(4(2(x1)))) -> 1(2(3(4(0(x1))))) 2(3(4(2(x1)))) -> 3(2(4(0(2(x1))))) 3(4(5(2(x1)))) -> 5(3(2(4(0(x1))))) 3(0(2(4(x1)))) -> 3(4(0(3(2(x1))))) 3(4(3(4(x1)))) -> 3(4(0(3(4(x1))))) 2(3(5(1(0(x1))))) -> 1(2(3(0(5(0(x1)))))) 2(4(5(1(0(x1))))) -> 3(4(0(1(2(5(x1)))))) 5(4(5(1(0(x1))))) -> 5(5(2(1(4(0(x1)))))) 3(4(2(2(0(x1))))) -> 2(0(3(4(0(2(x1)))))) 5(4(0(3(0(x1))))) -> 2(3(4(0(0(5(x1)))))) 3(4(2(3(0(x1))))) -> 2(4(3(3(4(0(x1)))))) 4(5(2(4(0(x1))))) -> 4(5(1(2(4(0(x1)))))) 1(2(3(5(0(x1))))) -> 5(3(1(3(2(0(x1)))))) 4(1(4(5(0(x1))))) -> 0(5(1(4(0(4(x1)))))) 3(5(1(4(2(x1))))) -> 2(5(3(1(4(0(x1)))))) 1(0(2(4(2(x1))))) -> 4(0(2(1(1(2(x1)))))) 1(4(3(5(2(x1))))) -> 2(3(4(0(1(5(x1)))))) 4(5(1(0(4(x1))))) -> 5(1(4(0(0(4(x1)))))) 3(2(0(3(4(x1))))) -> 3(1(3(2(4(0(x1)))))) 3(2(1(4(4(x1))))) -> 1(3(2(4(4(0(x1)))))) 2(0(1(5(4(x1))))) -> 5(1(2(4(0(1(x1)))))) Bounds Processor: bound: 1 enrichment: match automaton: final states: {123,119,118,114,109,104,101,96,94,93,91,86,83,80,74, 69,65,55,64,62,60,56,50,47,43,42,39,38,37,36,34,32, 29,25,22,21,19,17,16,11,9,6,1} transitions: 40(2) -> 26* 40(111) -> 112* 40(12) -> 120* 40(115) -> 116* 40(57) -> 58* 40(3) -> 12* 40(67) -> 68* 40(41) -> 92* 40(4) -> 18* 40(53) -> 54* 40(88) -> 89* 40(78) -> 79* 40(97) -> 98* 40(42) -> 93* 40(108) -> 104* 40(125) -> 126* 21(210) -> 211* 21(141) -> 142* 21(171) -> 172* 21(157) -> 158* 21(176) -> 177* 21(191) -> 192* 21(196) -> 197* 21(153) -> 154* 21(136) -> 137* 31(211) -> 212* 31(197) -> 198* 31(142) -> 143* 31(177) -> 178* 31(172) -> 173* 31(154) -> 155* 31(158) -> 159* 31(192) -> 193* 31(137) -> 138* 10(122) -> 119* 10(116) -> 117* 10(13) -> 14* 10(5) -> 1* 10(58) -> 59* 10(31) -> 29* 10(59) -> 56* 10(73) -> 69* 10(12) -> 13* 10(75) -> 110* 10(127) -> 128* 10(45) -> 46* 10(35) -> 34* 10(33) -> 32* 10(7) -> 8* 10(1) -> 33* 10(23) -> 35* 10(76) -> 77* 10(61) -> 60* 10(8) -> 21* 10(24) -> 22* 10(30) -> 31* 10(98) -> 99* 10(105) -> 106* 10(49) -> 47* 10(10) -> 9* 10(28) -> 25* 10(46) -> 43* 10(18) -> 20* 10(51) -> 105* 10(2) -> 124* 30(7) -> 10* 30(22) -> 118* 30(5) -> 16* 30(40) -> 41* 30(3) -> 44* 30(121) -> 122* 30(79) -> 74* 30(63) -> 62* 30(13) -> 102* 30(54) -> 55* 30(23) -> 24* 30(27) -> 28* 30(18) -> 17* 30(68) -> 65* 30(9) -> 95* 30(55) -> 50* 30(89) -> 90* 30(8) -> 6* 30(12) -> 40* 30(112) -> 113* 30(4) -> 30* 30(48) -> 49* 30(51) -> 52* 30(58) -> 84* 30(71) -> 72* 30(26) -> 66* 11(155) -> 156* 11(173) -> 174* 11(193) -> 194* 11(178) -> 179* 11(159) -> 160* 11(198) -> 199* 11(212) -> 213* 00(100) -> 96* 00(2) -> 3* 00(14) -> 15* 00(124) -> 125* 00(107) -> 108* 00(97) -> 115* 00(15) -> 11* 00(75) -> 87* 00(110) -> 111* 00(84) -> 85* 00(70) -> 71* 00(52) -> 53* 00(87) -> 88* 00(26) -> 97* 00(24) -> 36* 00(77) -> 78* 00(66) -> 67* 00(3) -> 4* 00(51) -> 57* 01(135) -> 136* 01(139) -> 140* 01(140) -> 141* 01(134) -> 135* 20(44) -> 45* 20(4) -> 5* 20(2) -> 51* 20(103) -> 101* 20(13) -> 81* 20(27) -> 48* 20(72) -> 73* 20(12) -> 23* 20(113) -> 109* 20(40) -> 61* 20(3) -> 7* 20(75) -> 76* 20(90) -> 86* 20(92) -> 91* 20(120) -> 121* 20(58) -> 63* 20(85) -> 83* 20(26) -> 27* 20(126) -> 127* 20(106) -> 107* 41(205) -> 206* 41(190) -> 191* 41(209) -> 210* 41(170) -> 171* 41(175) -> 176* 41(195) -> 196* 50(81) -> 82* 50(17) -> 38* 50(102) -> 103* 50(35) -> 42* 50(41) -> 39* 50(3) -> 70* 50(2) -> 75* 50(82) -> 80* 50(117) -> 114* 50(6) -> 37* 50(95) -> 94* 50(24) -> 64* 50(128) -> 123* 50(20) -> 19* 50(99) -> 100* f60() -> 2* 156 -> 73* 94 -> 124,105 56 -> 124* 70 -> 134* 194 -> 109* 43 -> 124* 19 -> 75* 74 -> 51,27 206 -> 157* 160 -> 45* 47 -> 124* 17 -> 26* 83 -> 66* 64 -> 66* 42 -> 51,27 69 -> 51* 104 -> 124* 140 -> 157* 93 -> 26* 114 -> 26* 16 -> 51* 28 -> 159,10 4 -> 195* 11 -> 26* 2 -> 139* 53 -> 205* 143 -> 45* 174 -> 61* 22 -> 51,27,124 88 -> 175* 109 -> 124* 6 -> 51* 138 -> 73* 21 -> 124* 36 -> 26* 91 -> 66* 86 -> 75* 179 -> 86* 135 -> 153* 123 -> 51,158,7 1 -> 51* 62 -> 51* 55 -> 44* 199 -> 27* 65 -> 66* 34 -> 51,27 37 -> 51,76 9 -> 51* 213 -> 48* 50 -> 66* 3 -> 170* 39 -> 26* 119 -> 52* 96 -> 26* 80 -> 75* 29 -> 124* 32 -> 51,158,7 25 -> 51* 111 -> 190* 78 -> 209* problem: Qed