DLV [build BEN/Oct 11 2007   gcc 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)]

true is bravely true, evidenced by {next(1,2), next(2,3), next(3,4), next(4,5), next(5,6), next(6,7), next(7,8), next(8,9), next(9,10), next(10,11), next(11,12), next(12,13), next(13,14), next(14,15), next(15,16), next(16,17), next(17,18), next(17,24), next(18,19), next(19,20), next(20,21), next(21,22), next(22,23), next(24,25), next(24,50), next(25,26), next(25,32), next(26,27), next(27,28), next(28,29), next(29,30), next(30,31), next(32,33), next(33,34), next(34,35), next(35,36), next(35,43), next(36,37), next(37,38), next(38,39), next(39,40), next(40,41), next(41,42), next(43,44), next(44,45), next(45,46), next(46,47), next(47,48), next(48,49), next(50,51), next(51,52), next(52,53), next(53,54), next(54,55), doAt(startflow,5), doAt(a12,6), doAt(a8,9), doAt(a5,11), doAt(a25,12), doAt(a1,13), doAt(a17,14), doAt(a19,15), doAt(a9,16), doAt(a22,17), doAt(a7,18), doAt(a10,19), doAt(a10,27), doAt(a10,38), doAt(a10,45), doAt(a10,51), doAt(a15,20), doAt(a15,28), doAt(a15,39), doAt(a15,46), 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