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(12,17), next(13,14), next(14,15), next(15,16), next(17,18), next(18,19), next(19,20), next(19,26), next(20,21), next(21,22), next(22,23), next(23,24), next(24,25), next(26,27), next(27,28), next(28,29), next(29,30), next(30,31), next(31,32), next(32,33), next(33,34), next(34,35), next(34,44), next(35,36), next(35,40), next(36,37), next(37,38), next(38,39), next(40,41), 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), doAt(startflow,6), doAt(a18,8), doAt(a1,11), doAt(a20,12), doAt(a24,14), doAt(endflow,15), doAt(endflow,24), doAt(endflow,38), doAt(endflow,42), doAt(endflow,47), doAt(endflow,51), doAt(a11,17), doAt(a14,18), doAt(a6,19), doAt(a21,22), doAt(a9,23), doAt(a9,37), doAt(a9,41), doAt(a9,46), doAt(a9,50), doAt(a17,26), doAt(a22,27), doAt(a13,28), doAt(a3,29), doAt(a16,30), doAt(a12,31), doAt(a4,32), doAt(a5,33), doAt(a19,34), doAt(a8,35), doAt(a15,36), doAt(a2,40), doAt(a7,44), doAt(a25,45), doAt(a10,49), subsAt(a18,7), subsAt(a1,9), subsAt(a24,13), ineffset(startflow,x13), ineffset(startflow,x2), ineffset(startflow,x20), 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,x14), ineffset(startflow,x15), ineffset(startflow,x16), ineffset(startflow,x17), ineffset(startflow,x18), ineffset(startflow,x19), ineffset(startflow,x21), ineffset(startflow,x22), ineffset(startflow,x23), ineffset(startflow,x24), ineffset(startflow,x25), ineffset(a18,x2), ineffset(a18,x8), ineffset(a18,x23), ineffset(a1,x13), ineffset(a1,x8), ineffset(a1,x9), ineffset(a1,x22), ineffset(a20,co40), ineffset(a20,co41), ineffset(a24,x2), ineffset(a24,x20), ineffset(a24,x15), ineffset(endflow,x5), ineffset(endflow,x11), ineffset(endflow,x24), ineffset(endflow,finished), ineffset(a11,x13), ineffset(a11,x14), ineffset(a11,x15), ineffset(a11,x21), ineffset(a14,x22), ineffset(a6,co12), ineffset(a6,co13), ineffset(a21,x11), ineffset(a9,x13), ineffset(a17,x5), ineffset(a17,x9), ineffset(a17,x10), ineffset(a17,x11), ineffset(a22,x11), ineffset(a22,x12), ineffset(a13,x21), ineffset(a3,x20), ineffset(a3,x4), ineffset(a3,x10), ineffset(a16,x2), ineffset(a12,x13), ineffset(a12,x7), ineffset(a12,x17), ineffset(a12,x18), ineffset(a4,x2), ineffset(a5,x20), ineffset(a5,x3), ineffset(a5,x4), ineffset(a5,x7), ineffset(a19,co38), ineffset(a19,co39), ineffset(a8,co16), ineffset(a8,co17), ineffset(a15,x5), ineffset(a15,x25), ineffset(a2,x1), ineffset(a2,x5), ineffset(a2,x11), ineffset(a2,x17), ineffset(a7,co14), ineffset(a7,co15), ineffset(a25,x6), ineffset(a25,x12), ineffset(a10,x20), inreadset(a18,x3), inreadset(a18,x4), inreadset(a18,x21), inreadset(a1,x13), inreadset(a20,x8), inreadset(a20,x24), inreadset(a24,x12), inreadset(endflow,x13), inreadset(endflow,x2), inreadset(endflow,x20), 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,x14), inreadset(endflow,x15), inreadset(endflow,x16), inreadset(endflow,x17), inreadset(endflow,x18), inreadset(endflow,x19), inreadset(endflow,x21), inreadset(endflow,x22), inreadset(endflow,x23), inreadset(endflow,x24), inreadset(endflow,x25), inreadset(a11,x9), inreadset(a11,x21), inreadset(a14,x1), inreadset(a14,x7), inreadset(a6,x5), inreadset(a6,x6), inreadset(a6,x9), inreadset(a21,x2), inreadset(a21,x20), inreadset(a9,x13), inreadset(a17,x1), inreadset(a17,x24), inreadset(a22,x13), inreadset(a22,x4), inreadset(a22,x19), inreadset(a13,x18), inreadset(a3,x3), inreadset(a3,x7), inreadset(a3,x11), inreadset(a16,x11), inreadset(a12,x1), inreadset(a4,x21), inreadset(a5,x4), inreadset(a19,x11), inreadset(a19,x18), inreadset(a8,x7), inreadset(a8,x15), inreadset(a15,x5), inreadset(a2,x2), inreadset(a7,x1), inreadset(a7,x21), inreadset(a7,x23), inreadset(a25,x3), inreadset(a10,x23), activity(startflow), activity(a18), activity(a1), activity(a20), activity(a24), activity(endflow), activity(a11), activity(a14), activity(a6), activity(a21), activity(a9), activity(a17), activity(a22), activity(a13), activity(a3), activity(a16), activity(a12), activity(a4), activity(a5), activity(a19), activity(a8), activity(a15), activity(a2), activity(a7), activity(a25), activity(a10), effectsObserved(startflow,1), effectsObserved(a18,2), effectsObserved(a1,3), effectsObserved(a20,4), effectsObserved(a24,5), do(startflow,1), do(a18,2), do(a1,3), do(a20,4), do(a24,5), nextvis(1,2), nextvis(2,3), nextvis(3,4), nextvis(4,5), subs(a18,7), subs(a1,9), subs(a24,13), do(a18,8), do(a1,11), do(a20,12), do(a24,14), do(endflow,15), do(endflow,24), do(endflow,38), do(endflow,42), do(endflow,47), do(endflow,51), do(a11,17), do(a14,18), do(a6,19), do(a21,22), do(a9,23), do(a9,37), do(a9,41), do(a9,46), do(a9,50), do(a17,26), do(a22,27), do(a13,28), do(a3,29), do(a12,31), do(a4,32), do(a5,33), do(a19,34), do(a8,35), do(a15,36), do(a2,40), do(a7,44), do(a25,45), do(a10,49), comp(a1,3,x13,10), comp(a24,5,x20,21), nextvis(7,8), nextvis(8,9), nextvis(9,10), nextvis(10,11), nextvis(11,12), nextvis(12,13), nextvis(12,17), nextvis(13,14), nextvis(14,15), nextvis(17,18), nextvis(18,19), nextvis(19,26), nextvis(21,22), nextvis(22,23), nextvis(23,24), nextvis(26,27), nextvis(27,28), nextvis(28,29), nextvis(31,32), nextvis(32,33), nextvis(33,34), nextvis(34,35), nextvis(34,44), nextvis(35,36), nextvis(35,40), nextvis(36,37), nextvis(37,38), nextvis(40,41), nextvis(41,42), nextvis(44,45), nextvis(44,49), nextvis(45,46), nextvis(46,47), nextvis(49,50), nextvis(50,51), nextvis(5,7), nextvis(19,21), nextvis(29,31), nextvis(15,16), nextvis(24,25), nextvis(38,39), nextvis(42,43), nextvis(47,48), nextvis(51,52)}