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(18,19), next(18,42), next(19,20), next(19,23), next(20,21), next(21,22), next(23,24), next(24,25), next(25,26), next(26,27), next(27,28), next(28,29), next(29,30), next(29,37), next(30,31), next(30,34), next(31,32), next(32,33), next(34,35), next(35,36), next(37,38), next(38,39), next(39,40), next(40,41), next(42,43), doAt(startflow,7), doAt(a20,9), doAt(a10,11), doAt(a19,12), doAt(a9,13), doAt(a11,14), doAt(a22,15), doAt(a6,16), doAt(a16,17), doAt(a15,18), doAt(a1,19), doAt(a12,20), doAt(endflow,21), doAt(endflow,32), doAt(endflow,35), doAt(endflow,40), doAt(endflow,42), doAt(a4,23), doAt(a13,24), doAt(a18,25), doAt(a8,26), doAt(a7,27), doAt(a2,28), doAt(a14,29), doAt(a25,30), doAt(a21,31), doAt(a17,34), doAt(a24,37), doAt(a23,38), doAt(a5,39), 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ineffset(a1,co3), ineffset(a12,x11), ineffset(a12,x19), ineffset(endflow,x15), ineffset(endflow,x16), ineffset(endflow,x21), ineffset(endflow,finished), ineffset(a4,x11), ineffset(a4,x19), ineffset(a13,x7), ineffset(a13,x13), ineffset(a13,x14), ineffset(a13,x22), ineffset(a18,x11), ineffset(a18,x14), ineffset(a18,x22), ineffset(a18,x23), ineffset(a8,x3), ineffset(a8,x19), ineffset(a7,x6), ineffset(a7,x14), ineffset(a7,x15), ineffset(a7,x21), ineffset(a2,x3), ineffset(a2,x14), ineffset(a2,x18), ineffset(a14,co28), ineffset(a14,co29), ineffset(a25,co50), ineffset(a25,co51), ineffset(a21,x8), ineffset(a21,x15), ineffset(a21,x22), ineffset(a17,x13), ineffset(a24,x12), ineffset(a5,x2), activity(startflow), activity(a20), activity(a10), activity(a19), activity(a9), activity(a11), activity(a22), activity(a6), activity(a16), activity(a15), activity(a1), activity(a12), activity(endflow), activity(a4), activity(a13), activity(a18), activity(a8), activity(a7), activity(a2), activity(a14), activity(a25), activity(a21), activity(a17), activity(a24), activity(a23), activity(a5), effectsObserved(startflow,1), effectsObserved(a20,2), effectsObserved(a10,3), effectsObserved(a19,4), effectsObserved(a9,5), effectsObserved(a11,6), inreadset(a20,x9), inreadset(a10,x2), inreadset(a10,x13), inreadset(a19,x6), inreadset(a19,x15), inreadset(a9,x14), inreadset(a9,x19), inreadset(a9,x24), inreadset(a11,x9), inreadset(a11,x3), inreadset(a22,x10), inreadset(a6,x1), inreadset(a6,x5), inreadset(a6,x17), inreadset(a16,x6), inreadset(a16,x24), inreadset(a15,x4), inreadset(a15,x13), inreadset(a15,x22), inreadset(a1,x7), inreadset(a12,x19), inreadset(a12,x20), inreadset(endflow,x9), inreadset(endflow,x1), inreadset(endflow,x2), inreadset(endflow,x3), inreadset(endflow,x4), inreadset(endflow,x5), inreadset(endflow,x6), inreadset(endflow,x7), inreadset(endflow,x8), inreadset(endflow,x10), inreadset(endflow,x11), inreadset(endflow,x12), inreadset(endflow,x13), inreadset(endflow,x14), inreadset(endflow,x15), inreadset(endflow,x16), inreadset(endflow,x17), inreadset(endflow,x18), inreadset(endflow,x19), inreadset(endflow,x20), inreadset(endflow,x21), inreadset(endflow,x22), inreadset(endflow,x23), inreadset(endflow,x24), inreadset(endflow,x25), inreadset(endflow,co30), inreadset(endflow,co31), inreadset(endflow,co2), inreadset(endflow,co3), inreadset(endflow,co28), inreadset(endflow,co29), inreadset(endflow,co50), inreadset(endflow,co51), inreadset(endflow,finished), inreadset(a4,x9), inreadset(a4,x21), inreadset(a13,x1), inreadset(a13,x18), inreadset(a18,x9), inreadset(a18,x7), inreadset(a18,x20), inreadset(a8,x3), inreadset(a7,x2), inreadset(a7,x8), inreadset(a7,x16), inreadset(a2,x5), inreadset(a14,x8), inreadset(a14,x17), inreadset(a14,x21), inreadset(a25,x2), inreadset(a25,x23), inreadset(a25,x24), inreadset(a21,x9), inreadset(a21,x3), inreadset(a21,x11), inreadset(a17,x8), inreadset(a24,x13), inreadset(a24,x25), inreadset(a23,x20), inreadset(a5,x1), 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nextvis(35,36), nextvis(40,41), nextvis(42,43)}