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(6,44), next(7,8), next(8,9), next(8,14), next(9,10), next(10,11), next(11,12), next(12,13), next(14,15), next(14,20), next(15,16), next(16,17), next(17,18), next(18,19), next(20,21), next(20,26), next(21,22), next(22,23), next(23,24), next(24,25), next(26,27), next(27,28), next(27,33), next(28,29), next(29,30), next(30,31), next(31,32), next(33,34), next(34,35), next(35,36), next(36,37), next(37,38), next(38,39), next(39,40), next(40,41), next(41,42), next(42,43), next(44,45), next(45,46), next(46,47), next(47,48), next(48,49), doAt(startflow,3), doAt(a24,4), doAt(a16,5), doAt(a8,6), doAt(a2,7), doAt(a14,8), doAt(a17,9), doAt(a3,10), doAt(a3,16), doAt(a3,22), doAt(a3,29), doAt(a3,40), doAt(a3,46), doAt(a6,11), doAt(a6,17), doAt(a6,23), doAt(a6,30), doAt(a6,41), doAt(a6,47), doAt(endflow,12), doAt(endflow,18), doAt(endflow,24), doAt(endflow,31), doAt(endflow,42), doAt(endflow,48), 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