YES Problem: 0(1(2(x1))) -> 0(2(1(1(x1)))) 2(3(1(x1))) -> 3(4(2(1(x1)))) 0(1(2(0(x1)))) -> 0(0(2(1(1(x1))))) 0(1(2(0(x1)))) -> 0(2(1(1(0(x1))))) 0(1(2(1(x1)))) -> 0(2(1(1(1(x1))))) 0(1(2(4(x1)))) -> 4(0(2(1(1(x1))))) 0(1(2(5(x1)))) -> 0(2(5(1(1(x1))))) 0(1(2(5(x1)))) -> 0(4(2(1(5(x1))))) 0(1(3(1(x1)))) -> 0(0(3(1(1(x1))))) 0(1(3(1(x1)))) -> 3(0(2(1(1(1(x1)))))) 0(1(4(1(x1)))) -> 4(0(1(1(1(x1))))) 0(1(4(5(x1)))) -> 0(4(1(1(5(x1))))) 0(2(0(1(x1)))) -> 0(0(2(4(1(x1))))) 0(5(3(1(x1)))) -> 5(0(3(1(1(1(x1)))))) 0(5(3(2(x1)))) -> 0(3(4(2(5(x1))))) 2(3(2(0(x1)))) -> 2(2(1(3(0(x1))))) 2(4(5(2(x1)))) -> 2(1(4(2(5(x1))))) 3(0(1(2(x1)))) -> 3(4(0(2(1(x1))))) 4(4(3(2(x1)))) -> 4(3(4(2(1(x1))))) 4(5(3(1(x1)))) -> 3(5(4(4(1(x1))))) 4(5(3(1(x1)))) -> 4(3(1(5(1(x1))))) 4(5(3(2(x1)))) -> 3(4(2(5(4(x1))))) 4(5(3(2(x1)))) -> 3(5(4(2(1(x1))))) 0(1(0(2(2(x1))))) -> 0(0(2(1(4(2(x1)))))) 0(1(0(3(1(x1))))) -> 0(3(4(0(1(1(x1)))))) 0(1(4(5(1(x1))))) -> 4(0(2(5(1(1(x1)))))) 0(1(5(0(1(x1))))) -> 0(0(1(5(5(1(x1)))))) 0(2(3(1(3(x1))))) -> 0(3(4(2(1(3(x1)))))) 0(4(1(5(2(x1))))) -> 0(4(2(5(1(1(x1)))))) 0(5(1(3(2(x1))))) -> 3(0(2(1(1(5(x1)))))) 0(5(2(0(4(x1))))) -> 0(4(2(5(0(4(x1)))))) 0(5(3(1(5(x1))))) -> 5(0(3(4(1(5(x1)))))) 0(5(3(2(5(x1))))) -> 0(4(3(5(2(5(x1)))))) 2(0(1(3(1(x1))))) -> 1(1(4(3(0(2(x1)))))) 2(0(1(3(5(x1))))) -> 2(5(1(1(0(3(x1)))))) 2(0(1(5(3(x1))))) -> 2(1(1(3(0(5(x1)))))) 2(3(1(0(1(x1))))) -> 0(3(2(1(1(5(x1)))))) 2(3(1(4(1(x1))))) -> 3(4(2(5(1(1(x1)))))) 2(3(5(1(2(x1))))) -> 2(3(2(1(5(1(x1)))))) 3(0(1(2(0(x1))))) -> 3(4(0(2(1(0(x1)))))) 3(2(0(1(0(x1))))) -> 3(2(1(5(0(0(x1)))))) 3(2(3(5(1(x1))))) -> 3(3(4(2(1(5(x1)))))) 3(5(3(1(3(x1))))) -> 3(5(4(3(1(3(x1)))))) 4(0(3(3(1(x1))))) -> 0(3(4(3(1(1(x1)))))) 4(4(3(2(5(x1))))) -> 3(4(2(4(1(5(x1)))))) 4(5(0(5(2(x1))))) -> 0(4(2(1(5(5(x1)))))) 4(5(2(3(1(x1))))) -> 5(3(4(3(2(1(x1)))))) 4(5(2(5(2(x1))))) -> 4(2(5(5(2(1(x1)))))) 4(5(3(5(1(x1))))) -> 4(5(5(4(3(1(x1)))))) Proof: String Reversal Processor: 2(1(0(x1))) -> 1(1(2(0(x1)))) 1(3(2(x1))) -> 1(2(4(3(x1)))) 0(2(1(0(x1)))) -> 1(1(2(0(0(x1))))) 0(2(1(0(x1)))) -> 0(1(1(2(0(x1))))) 1(2(1(0(x1)))) -> 1(1(1(2(0(x1))))) 4(2(1(0(x1)))) -> 1(1(2(0(4(x1))))) 5(2(1(0(x1)))) -> 1(1(5(2(0(x1))))) 5(2(1(0(x1)))) -> 5(1(2(4(0(x1))))) 1(3(1(0(x1)))) -> 1(1(3(0(0(x1))))) 1(3(1(0(x1)))) -> 1(1(1(2(0(3(x1)))))) 1(4(1(0(x1)))) -> 1(1(1(0(4(x1))))) 5(4(1(0(x1)))) -> 5(1(1(4(0(x1))))) 1(0(2(0(x1)))) -> 1(4(2(0(0(x1))))) 1(3(5(0(x1)))) -> 1(1(1(3(0(5(x1)))))) 2(3(5(0(x1)))) -> 5(2(4(3(0(x1))))) 0(2(3(2(x1)))) -> 0(3(1(2(2(x1))))) 2(5(4(2(x1)))) -> 5(2(4(1(2(x1))))) 2(1(0(3(x1)))) -> 1(2(0(4(3(x1))))) 2(3(4(4(x1)))) -> 1(2(4(3(4(x1))))) 1(3(5(4(x1)))) -> 1(4(4(5(3(x1))))) 1(3(5(4(x1)))) -> 1(5(1(3(4(x1))))) 2(3(5(4(x1)))) -> 4(5(2(4(3(x1))))) 2(3(5(4(x1)))) -> 1(2(4(5(3(x1))))) 2(2(0(1(0(x1))))) -> 2(4(1(2(0(0(x1)))))) 1(3(0(1(0(x1))))) -> 1(1(0(4(3(0(x1)))))) 1(5(4(1(0(x1))))) -> 1(1(5(2(0(4(x1)))))) 1(0(5(1(0(x1))))) -> 1(5(5(1(0(0(x1)))))) 3(1(3(2(0(x1))))) -> 3(1(2(4(3(0(x1)))))) 2(5(1(4(0(x1))))) -> 1(1(5(2(4(0(x1)))))) 2(3(1(5(0(x1))))) -> 5(1(1(2(0(3(x1)))))) 4(0(2(5(0(x1))))) -> 4(0(5(2(4(0(x1)))))) 5(1(3(5(0(x1))))) -> 5(1(4(3(0(5(x1)))))) 5(2(3(5(0(x1))))) -> 5(2(5(3(4(0(x1)))))) 1(3(1(0(2(x1))))) -> 2(0(3(4(1(1(x1)))))) 5(3(1(0(2(x1))))) -> 3(0(1(1(5(2(x1)))))) 3(5(1(0(2(x1))))) -> 5(0(3(1(1(2(x1)))))) 1(0(1(3(2(x1))))) -> 5(1(1(2(3(0(x1)))))) 1(4(1(3(2(x1))))) -> 1(1(5(2(4(3(x1)))))) 2(1(5(3(2(x1))))) -> 1(5(1(2(3(2(x1)))))) 0(2(1(0(3(x1))))) -> 0(1(2(0(4(3(x1)))))) 0(1(0(2(3(x1))))) -> 0(0(5(1(2(3(x1)))))) 1(5(3(2(3(x1))))) -> 5(1(2(4(3(3(x1)))))) 3(1(3(5(3(x1))))) -> 3(1(3(4(5(3(x1)))))) 1(3(3(0(4(x1))))) -> 1(1(3(4(3(0(x1)))))) 5(2(3(4(4(x1))))) -> 5(1(4(2(4(3(x1)))))) 2(5(0(5(4(x1))))) -> 5(5(1(2(4(0(x1)))))) 1(3(2(5(4(x1))))) -> 1(2(3(4(3(5(x1)))))) 2(5(2(5(4(x1))))) -> 1(2(5(5(2(4(x1)))))) 1(5(3(5(4(x1))))) -> 1(3(4(5(5(4(x1)))))) Bounds Processor: bound: 0 enrichment: match automaton: final states: {165,160,155,154,151,148,145,140,135,134,129,127,123, 119,114,108,104,101,99,98,95,93,89,86,83,81,79,77, 74,70,66,63,59,54,50,44,42,39,36,31,28,24,21,16,15, 14,10,6,1} transitions: 10(69) -> 66* 10(102) -> 103* 10(47) -> 48* 10(116) -> 117* 10(115) -> 116* 10(169) -> 165* 10(88) -> 86* 10(13) -> 10* 10(5) -> 1* 10(109) -> 110* 10(78) -> 128* 10(34) -> 35* 10(60) -> 120* 10(97) -> 95* 10(143) -> 144* 10(73) -> 70* 10(12) -> 13* 10(40) -> 41* 10(20) -> 16* 10(85) -> 83* 10(22) -> 23* 10(35) -> 31* 10(33) -> 34* 10(29) -> 30* 10(1) -> 15* 10(125) -> 126* 10(23) -> 21* 10(136) -> 137* 10(53) -> 94* 10(87) -> 88* 10(84) -> 85* 10(11) -> 90* 10(164) -> 160* 10(96) -> 97* 10(38) -> 36* 10(150) -> 148* 10(76) -> 74* 10(37) -> 38* 10(26) -> 27* 10(124) -> 125* 10(159) -> 155* 10(4) -> 5* 10(92) -> 89* 10(43) -> 42* 10(25) -> 40* 10(131) -> 132* 10(55) -> 60* 10(152) -> 153* 10(30) -> 28* 10(80) -> 79* 10(19) -> 20* 10(67) -> 75* 10(48) -> 49* 10(146) -> 147* 10(49) -> 44* 10(133) -> 129* 10(128) -> 127* 10(65) -> 63* 10(9) -> 6* 10(56) -> 57* 10(149) -> 150* 10(18) -> 37* 10(2) -> 109* f60() -> 2* 50(153) -> 151* 50(17) -> 166* 50(161) -> 162* 50(103) -> 101* 50(35) -> 98* 50(122) -> 119* 50(27) -> 24* 50(107) -> 104* 50(75) -> 76* 50(41) -> 39* 50(26) -> 96* 50(2) -> 45* 50(162) -> 163* 50(4) -> 22* 50(144) -> 140* 50(62) -> 59* 50(126) -> 123* 50(9) -> 78* 50(91) -> 92* 50(7) -> 71* 50(19) -> 87* 50(166) -> 167* 50(24) -> 154* 50(55) -> 115* 50(53) -> 50* 50(137) -> 138* 50(105) -> 106* 50(132) -> 133* 50(90) -> 91* 30(168) -> 169* 30(2) -> 7* 30(55) -> 130* 30(111) -> 112* 30(45) -> 156* 30(57) -> 58* 30(3) -> 51* 30(52) -> 149* 30(72) -> 146* 30(147) -> 145* 30(118) -> 114* 30(7) -> 141* 30(157) -> 158* 30(11) -> 29* 30(94) -> 93* 30(46) -> 47* 30(120) -> 121* 30(17) -> 67* 30(25) -> 105* 20(52) -> 53* 20(68) -> 69* 20(2) -> 55* 20(17) -> 161* 20(72) -> 80* 20(61) -> 62* 20(25) -> 26* 20(163) -> 164* 20(113) -> 108* 20(64) -> 65* 20(3) -> 4* 20(82) -> 81* 20(18) -> 19* 20(55) -> 56* 20(158) -> 159* 20(32) -> 33* 20(11) -> 12* 20(8) -> 9* 20(51) -> 124* 20(130) -> 131* 20(7) -> 136* 20(142) -> 143* 20(106) -> 107* 40(7) -> 8* 40(3) -> 25* 40(67) -> 68* 40(156) -> 157* 40(13) -> 82* 40(9) -> 152* 40(141) -> 142* 40(60) -> 61* 40(47) -> 102* 40(12) -> 43* 40(100) -> 99* 40(110) -> 111* 40(51) -> 52* 40(71) -> 72* 40(167) -> 168* 40(78) -> 77* 40(2) -> 17* 40(72) -> 73* 00(1) -> 14* 00(17) -> 18* 00(2) -> 3* 00(139) -> 135* 00(117) -> 118* 00(63) -> 134* 00(96) -> 100* 00(138) -> 139* 00(52) -> 84* 00(8) -> 64* 00(121) -> 122* 00(58) -> 54* 00(45) -> 46* 00(7) -> 32* 00(3) -> 11* 00(112) -> 113* 155 -> 109* 151 -> 45,115 70 -> 109* 24 -> 45,115 74 -> 109* 148 -> 109* 154 -> 55* 160 -> 55* 83 -> 109* 42 -> 109* 140 -> 109* 104 -> 45,115 77 -> 55,136 63 -> 55* 93 -> 7* 14 -> 3* 114 -> 45,71 16 -> 17* 66 -> 55,136 28 -> 109* 54 -> 3* 6 -> 109* 21 -> 45,115 36 -> 109* 79 -> 55,136 86 -> 109* 135 -> 3* 44 -> 109* 101 -> 45* 127 -> 109* 165 -> 109* 123 -> 109* 1 -> 55* 31 -> 109* 99 -> 17,25 59 -> 55* 95 -> 55* 134 -> 3* 108 -> 109* 50 -> 55,136 39 -> 45,166 145 -> 7* 119 -> 7,156 129 -> 55* 15 -> 109* 10 -> 3* 98 -> 55,136 81 -> 55,56 89 -> 109* problem: Qed