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(15,30), next(16,17), next(16,20), next(17,18), next(18,19), next(20,21), next(21,22), next(22,23), next(22,26), next(23,24), next(24,25), next(26,27), next(27,28), next(28,29), next(30,31), next(31,32), next(32,33), next(33,34), next(34,35), next(34,38), next(35,36), next(36,37), next(38,39), next(39,40), next(39,44), next(40,41), next(41,42), next(42,43), next(44,45), next(45,46), next(46,47), doAt(startflow,7), doAt(a18,8), doAt(a20,11), doAt(a16,12), doAt(a24,14), doAt(a14,15), doAt(a19,16), doAt(a1,17), doAt(endflow,18), doAt(endflow,24), doAt(endflow,28), doAt(endflow,36), doAt(endflow,42), doAt(endflow,46), doAt(a11,20), doAt(a13,21), doAt(a6,22), doAt(a2,23), doAt(a7,26), doAt(a15,27), doAt(a22,30), doAt(a10,31), doAt(a17,32), doAt(a4,33), doAt(a8,34), 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inreadset(endflow,x20), inreadset(endflow,x21), inreadset(endflow,x22), inreadset(endflow,x24), inreadset(endflow,x25), inreadset(endflow,co28), inreadset(endflow,co29), inreadset(endflow,co38), inreadset(endflow,co39), inreadset(endflow,co12), inreadset(endflow,co13), inreadset(endflow,co16), inreadset(endflow,co17), inreadset(endflow,co42), inreadset(endflow,co43), inreadset(endflow,finished), inreadset(a11,x4), inreadset(a13,x5), inreadset(a6,x7), inreadset(a2,x19), inreadset(a2,x22), inreadset(a7,x25), inreadset(a15,x9), inreadset(a15,x13), inreadset(a15,x17), inreadset(a22,x16), inreadset(a10,x13), inreadset(a17,x9), inreadset(a4,x11), inreadset(a8,x8), inreadset(a8,x14), inreadset(a25,x22), inreadset(a3,x11), inreadset(a3,x14), inreadset(a3,x20), inreadset(a21,x16), inreadset(a23,x1), inreadset(a23,x18), inreadset(a23,x24), inreadset(a12,x5), inreadset(a9,x23), inreadset(a9,x1), inreadset(a9,x25), do(startflow,1), do(a18,2), do(a20,3), do(a16,4), do(a24,5), do(a14,6), 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