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(5,38), next(6,7), next(7,8), next(7,11), next(8,9), next(9,10), next(11,12), next(11,15), next(12,13), next(13,14), next(15,16), next(16,17), next(17,18), next(18,19), next(19,20), next(20,21), next(21,22), next(22,23), next(23,24), next(24,25), next(24,28), next(25,26), next(26,27), next(28,29), next(29,30), next(30,31), next(30,34), next(31,32), next(32,33), next(34,35), next(35,36), next(36,37), next(38,39), next(39,40), next(40,41), next(40,44), next(41,42), next(42,43), next(44,45), next(44,49), next(45,46), next(46,47), next(47,48), next(49,50), next(50,51), next(51,52), next(52,53), next(53,54), next(54,55), next(55,56), next(56,57), next(57,58), next(58,59), next(58,63), next(59,60), next(60,61), next(61,62), next(63,64), next(64,65), next(65,66), next(65,70), next(66,67), next(67,68), next(68,69), next(70,71), next(71,72), next(72,73), next(73,74), doAt(startflow,4), doAt(a7,5), doAt(a19,6), doAt(a8,7), doAt(a8,40), doAt(a20,8), doAt(a20,41), doAt(endflow,9), doAt(endflow,13), doAt(endflow,26), doAt(endflow,32), doAt(endflow,36), doAt(endflow,42), doAt(endflow,47), doAt(endflow,61), doAt(endflow,68), doAt(endflow,73), doAt(a9,11), doAt(a9,44), doAt(a5,12), doAt(a5,45), doAt(a23,15), doAt(a23,49), doAt(a14,16), doAt(a14,50), doAt(a2,17), doAt(a2,51), doAt(a6,18), doAt(a6,52), doAt(a24,19), doAt(a24,53), doAt(a3,20), doAt(a3,54), doAt(a16,21), doAt(a16,55), doAt(a13,22), doAt(a13,56), doAt(a15,23), doAt(a15,57), doAt(a21,24), doAt(a21,58), doAt(a4,25), doAt(a4,59), doAt(a18,28), doAt(a18,63), doAt(a25,29), doAt(a25,64), doAt(a11,30), doAt(a11,65), doAt(a12,31), doAt(a12,67), doAt(a22,34), doAt(a22,70), doAt(a10,35), doAt(a10,71), doAt(a17,39), ineffset(startflow,x15), ineffset(startflow,x21), ineffset(startflow,x1), ineffset(startflow,x2), ineffset(startflow,x3), ineffset(startflow,x4), ineffset(startflow,x5), ineffset(startflow,x6), ineffset(startflow,x7), ineffset(startflow,x8), ineffset(startflow,x9), ineffset(startflow,x10), ineffset(startflow,x11), ineffset(startflow,x12), ineffset(startflow,x13), ineffset(startflow,x14), ineffset(startflow,x16), ineffset(startflow,x17), ineffset(startflow,x18), ineffset(startflow,x19), ineffset(startflow,x20), ineffset(startflow,x22), ineffset(startflow,x23), ineffset(startflow,x24), ineffset(startflow,x25), ineffset(a7,co14), ineffset(a7,co15), ineffset(a19,x15), ineffset(a19,x21), ineffset(a8,co16), ineffset(a8,co17), ineffset(a20,x21), ineffset(a20,x4), ineffset(a20,x12), ineffset(a20,x19), ineffset(endflow,x6), ineffset(endflow,finished), ineffset(a9,co18), ineffset(a9,co19), ineffset(a5,x9), ineffset(a5,x13), ineffset(a5,x20), ineffset(a5,x22), ineffset(a23,x1), ineffset(a23,x3), ineffset(a23,x10), ineffset(a23,x25), ineffset(a14,x5), ineffset(a14,x6), ineffset(a14,x8), ineffset(a14,x10), ineffset(a2,x4), ineffset(a6,x22), ineffset(a24,x15), ineffset(a24,x2), ineffset(a24,x23), ineffset(a24,x24), ineffset(a3,x19), ineffset(a16,x11), ineffset(a16,x25), ineffset(a13,x11), ineffset(a15,x2), ineffset(a15,x17), ineffset(a15,x20), ineffset(a15,x23), ineffset(a21,co42), ineffset(a21,co43), ineffset(a4,x15), ineffset(a4,x3), ineffset(a18,x16), ineffset(a25,x25), ineffset(a11,co22), ineffset(a11,co23), ineffset(a12,x6), ineffset(a22,x15), ineffset(a22,x8), ineffset(a10,x23), ineffset(a17,x1), ineffset(a17,x11), ineffset(a17,x14), inreadset(a7,x8), inreadset(a19,x8), inreadset(a19,x10), inreadset(a8,x8), inreadset(a20,x15), inreadset(a20,x11), inreadset(a20,x20), inreadset(endflow,x15), inreadset(endflow,x21), 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,x9), inreadset(endflow,x10), inreadset(endflow,x11), inreadset(endflow,x12), inreadset(endflow,x13), inreadset(endflow,x14), inreadset(endflow,x16), inreadset(endflow,x17), inreadset(endflow,x18), inreadset(endflow,x19), inreadset(endflow,x20), inreadset(endflow,x22), inreadset(endflow,x23), inreadset(endflow,x24), inreadset(endflow,x25), inreadset(a9,x14), inreadset(a5,x9), inreadset(a23,x3), inreadset(a23,x11), inreadset(a14,x8), inreadset(a2,x7), inreadset(a6,x8), inreadset(a24,x7), inreadset(a3,x25), inreadset(a16,x9), inreadset(a16,x10), inreadset(a13,x12), inreadset(a15,x8), inreadset(a15,x14), inreadset(a21,x5), inreadset(a21,x9), inreadset(a4,x25), inreadset(a18,x5), inreadset(a18,x13), inreadset(a25,x12), inreadset(a25,x14), inreadset(a11,x5), inreadset(a11,x17), inreadset(a11,x23), inreadset(a12,x21), inreadset(a22,x9), inreadset(a10,x17), inreadset(a17,x15), inreadset(a17,x19), activity(startflow), activity(a7), activity(a19), activity(a8), activity(a20), activity(endflow), activity(a9), activity(a5), activity(a23), activity(a14), activity(a2), activity(a6), activity(a24), activity(a3), activity(a16), activity(a13), activity(a15), activity(a21), activity(a4), activity(a18), activity(a25), activity(a11), activity(a12), activity(a22), activity(a10), activity(a17), effectsObserved(startflow,1), effectsObserved(a7,2), effectsObserved(a19,3), do(startflow,1), do(a7,2), do(a19,3), nextvis(1,2), nextvis(2,3), do(a19,6), do(a8,7), impossible(a,40), do(a20,8), impossible(a,41), do(endflow,9), do(endflow,13), do(endflow,26), do(endflow,32), do(endflow,36), impossible(a,42), impossible(a,47), impossible(a,61), impossible(a,68), impossible(a,73), do(a9,11), impossible(a,44), do(a5,12), impossible(a,45), do(a23,15), impossible(a,49), do(a14,16), impossible(a,50), do(a2,17), impossible(a,51), do(a6,18), impossible(a,52), do(a24,19), impossible(a,53), do(a3,20), impossible(a,54), do(a16,21), impossible(a,55), do(a13,22), impossible(a,56), do(a15,23), impossible(a,57), do(a21,24), impossible(a,58), do(a4,25), impossible(a,59), do(a18,28), impossible(a,63), do(a25,29), impossible(a,64), do(a11,30), impossible(a,65), do(a12,31), impossible(a,67), do(a22,34), impossible(a,70), do(a10,35), impossible(a,71), impossible(a,39), impossible(a,38), impossible(a,46), impossible(a,60), impossible(a,66), impossible(a,72), impossible(a,43), impossible(a,48), impossible(a,62), impossible(a,69), impossible(a,74), nextvis(6,7), nextvis(7,8), nextvis(7,11), nextvis(8,9), nextvis(11,12), nextvis(11,15), nextvis(12,13), nextvis(15,16), nextvis(16,17), nextvis(17,18), nextvis(18,19), nextvis(19,20), nextvis(20,21), nextvis(21,22), nextvis(22,23), nextvis(23,24), nextvis(24,25), nextvis(24,28), nextvis(25,26), nextvis(28,29), nextvis(29,30), nextvis(30,31), nextvis(30,34), nextvis(31,32), nextvis(34,35), nextvis(35,36), nextvis(3,6), nextvis(9,10), nextvis(13,14), nextvis(26,27), nextvis(32,33), nextvis(36,37)}