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(19,20), next(20,21), next(21,22), next(22,23), next(23,24), next(24,25), next(25,26), next(26,27), next(27,28), next(28,29), next(29,30), next(30,31), next(30,54), next(31,32), next(31,35), next(32,33), next(33,34), next(35,36), next(35,39), next(36,37), next(37,38), next(39,40), next(40,41), next(41,42), next(42,43), next(42,47), next(43,44), next(44,45), next(45,46), next(47,48), next(48,49), next(49,50), next(50,51), next(51,52), next(52,53), next(54,55), doAt(startflow,8), doAt(a16,15), doAt(a11,19), doAt(a8,22), doAt(a14,23), doAt(a3,25), doAt(a15,26), doAt(a20,27), doAt(a18,28), doAt(a21,29), doAt(a17,30), doAt(a22,31), doAt(a24,32), doAt(endflow,33), doAt(endflow,37), doAt(endflow,45), doAt(endflow,52), doAt(endflow,54), doAt(a23,35), doAt(a7,36), doAt(a6,39), doAt(a19,40), doAt(a4,41), doAt(a9,42), doAt(a25,43), doAt(a1,44), doAt(a1,51), doAt(a10,47), doAt(a13,48), doAt(a5,49), doAt(a2,50), subsAt(a16,14), subsAt(a11,16), subsAt(a8,20), ineffset(startflow,x17), ineffset(startflow,x23), ineffset(startflow,x2), ineffset(startflow,x1), 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,x15), ineffset(startflow,x16), ineffset(startflow,x18), ineffset(startflow,x19), ineffset(startflow,x20), ineffset(startflow,x21), ineffset(startflow,x22), ineffset(startflow,x24), ineffset(startflow,x25), ineffset(a16,x17), ineffset(a16,x23), ineffset(a16,x15), ineffset(a16,x19), ineffset(a11,x17), ineffset(a11,x3), ineffset(a11,x9), ineffset(a11,x21), ineffset(a8,x23), ineffset(a14,x9), ineffset(a14,x11), ineffset(a14,x19), ineffset(a14,x20), ineffset(a3,x17), ineffset(a3,x13), ineffset(a15,x2), ineffset(a20,x21), ineffset(a18,x21), ineffset(a21,x24), ineffset(a17,co34), ineffset(a17,co35), ineffset(a22,co44), ineffset(a22,co45), ineffset(a24,x5), ineffset(a24,x15), ineffset(a24,x21), ineffset(endflow,x17), ineffset(endflow,finished), ineffset(a23,co46), ineffset(a23,co47), ineffset(a7,x9), ineffset(a7,x16), ineffset(a7,x19), ineffset(a7,x20), ineffset(a6,x7), ineffset(a6,x13), ineffset(a6,x21), ineffset(a6,x25), ineffset(a19,x12), ineffset(a4,x14), ineffset(a4,x20), ineffset(a9,co18), ineffset(a9,co19), ineffset(a25,x1), ineffset(a1,x12), ineffset(a1,x16), ineffset(a10,x10), ineffset(a10,x15), ineffset(a13,x3), ineffset(a13,x13), ineffset(a13,x18), ineffset(a5,x12), ineffset(a2,x9), ineffset(a2,x19), ineffset(a2,x22), inreadset(a16,x17), inreadset(a16,x23), inreadset(a11,x17), inreadset(a8,x2), inreadset(a8,x25), inreadset(a14,x5), inreadset(a14,x14), inreadset(a3,x17), inreadset(a15,x15), inreadset(a20,x19), inreadset(a18,x18), inreadset(a21,x16), inreadset(a17,x25), inreadset(a22,x6), inreadset(a22,x16), inreadset(a22,x19), inreadset(a24,x2), inreadset(a24,x19), inreadset(endflow,x17), inreadset(endflow,x23), inreadset(endflow,x2), inreadset(endflow,x1), 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,x15), inreadset(endflow,x16), inreadset(endflow,x18), inreadset(endflow,x19), inreadset(endflow,x20), inreadset(endflow,x21), inreadset(endflow,x22), inreadset(endflow,x24), inreadset(endflow,x25), inreadset(a23,x4), inreadset(a23,x12), inreadset(a7,x18), inreadset(a7,x19), inreadset(a6,x6), inreadset(a19,x2), inreadset(a4,x3), inreadset(a4,x7), inreadset(a4,x20), inreadset(a9,x3), inreadset(a9,x6), inreadset(a9,x12), inreadset(a25,x1), inreadset(a1,x5), inreadset(a1,x19), inreadset(a10,x17), inreadset(a10,x10), inreadset(a13,x4), inreadset(a13,x14), inreadset(a5,x23), inreadset(a5,x7), inreadset(a5,x11), inreadset(a2,x7), inreadset(a2,x9), inreadset(a2,x11), activity(startflow), activity(a16), activity(a11), activity(a8), activity(a14), activity(a3), activity(a15), activity(a20), activity(a18), activity(a21), activity(a17), activity(a22), activity(a24), activity(endflow), activity(a23), activity(a7), activity(a6), activity(a19), activity(a4), activity(a9), activity(a25), activity(a1), activity(a10), activity(a13), activity(a5), activity(a2), effectsObserved(startflow,1), effectsObserved(a16,2), effectsObserved(a11,3), effectsObserved(a8,4), effectsObserved(a14,5), effectsObserved(a3,6), effectsObserved(a15,7), do(startflow,1), do(a16,2), do(a11,3), do(a8,4), do(a14,5), do(a3,6), do(a15,7), nextvis(1,2), nextvis(2,3), nextvis(3,4), nextvis(4,5), nextvis(5,6), nextvis(6,7), subs(a16,14), subs(a11,16), subs(a8,20), do(a16,15), do(a11,19), do(a8,22), do(a14,23), do(a3,25), do(a15,26), do(a18,28), do(a21,29), do(a17,30), do(a22,31), do(a24,32), do(endflow,33), do(endflow,37), do(endflow,45), do(endflow,52), do(endflow,54), do(a23,35), do(a7,36), do(a6,39), do(a19,40), do(a4,41), do(a9,42), do(a25,43), do(a1,44), do(a1,51), do(a10,47), do(a13,48), do(a2,50), comp(a16,2,x17,11), comp(a16,2,x23,13), comp(a11,3,x17,10), comp(a8,4,x23,12), comp(a3,6,x17,9), comp(a15,7,x2,21), nextvis(9,10), nextvis(10,11), nextvis(11,12), nextvis(12,13), nextvis(13,14), nextvis(14,15), nextvis(15,16), nextvis(19,20), nextvis(20,21), nextvis(21,22), nextvis(22,23), nextvis(25,26), nextvis(28,29), nextvis(29,30), nextvis(30,31), nextvis(30,54), nextvis(31,32), nextvis(31,35), nextvis(32,33), nextvis(35,36), nextvis(35,39), nextvis(36,37), nextvis(39,40), nextvis(40,41), nextvis(41,42), nextvis(42,43), nextvis(42,47), nextvis(43,44), nextvis(44,45), nextvis(47,48), nextvis(50,51), nextvis(51,52), nextvis(7,9), nextvis(16,19), nextvis(23,25), nextvis(26,28), nextvis(48,50), nextvis(33,34), nextvis(37,38), nextvis(45,46), nextvis(52,53), nextvis(54,55)}