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(5,9), next(6,7), next(7,8), next(9,10), next(10,11), next(10,14), next(11,12), next(12,13), 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(25,30), next(26,27), next(27,28), next(28,29), next(30,31), next(30,35), next(31,32), next(32,33), next(33,34), next(35,36), next(36,37), next(37,38), next(38,39), next(39,40), doAt(startflow,4), doAt(a21,5), doAt(a1,6), doAt(endflow,7), doAt(endflow,12), doAt(endflow,28), doAt(endflow,33), doAt(endflow,39), doAt(a4,9), doAt(a23,10), doAt(a8,11), doAt(a10,14), doAt(a5,15), doAt(a25,16), doAt(a22,17), doAt(a12,18), doAt(a17,19), doAt(a14,20), doAt(a3,21), doAt(a19,22), doAt(a24,23), doAt(a11,24), doAt(a7,25), doAt(a9,26), doAt(a16,27), doAt(a16,32), doAt(a16,38), doAt(a20,30), doAt(a2,31), doAt(a13,35), doAt(a15,36), doAt(a6,37), 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,x15), ineffset(startflow,x16), ineffset(startflow,x17), ineffset(startflow,x18), ineffset(startflow,x19), ineffset(startflow,x20), ineffset(startflow,x21), ineffset(startflow,x22), ineffset(startflow,x23), ineffset(startflow,x24), ineffset(startflow,x25), ineffset(a21,co42), ineffset(a21,co43), ineffset(a1,x9), ineffset(endflow,x14), ineffset(endflow,x23), ineffset(endflow,finished), ineffset(a4,x9), ineffset(a23,co46), ineffset(a23,co47), ineffset(a8,x1), ineffset(a8,x15), ineffset(a8,x24), ineffset(a10,x4), ineffset(a10,x22), ineffset(a10,x24), ineffset(a5,x2), ineffset(a5,x3), ineffset(a5,x22), ineffset(a25,x15), ineffset(a22,x2), ineffset(a22,x7), ineffset(a22,x18), ineffset(a22,x25), ineffset(a12,x13), ineffset(a17,x4), ineffset(a14,x2), ineffset(a3,x8), ineffset(a3,x9), ineffset(a3,x20), ineffset(a3,x21), ineffset(a19,x6), ineffset(a19,x8), ineffset(a19,x12), ineffset(a19,x15), ineffset(a24,x6), ineffset(a24,x23), ineffset(a11,x11), ineffset(a7,co14), ineffset(a7,co15), ineffset(a9,x4), ineffset(a9,x10), ineffset(a9,x24), ineffset(a9,x25), ineffset(a16,x21), ineffset(a20,co40), ineffset(a20,co41), ineffset(a2,x2), ineffset(a2,x6), ineffset(a2,x7), ineffset(a2,x25), ineffset(a13,x3), ineffset(a15,x16), ineffset(a15,x22), ineffset(a6,x9), ineffset(a6,x17), inreadset(a21,x15), inreadset(a1,x6), inreadset(a1,x8), inreadset(a1,x25), 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,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(a4,x10), inreadset(a4,x16), inreadset(a4,x19), inreadset(a23,x19), inreadset(a8,x9), inreadset(a10,x21), inreadset(a5,x14), inreadset(a25,x12), inreadset(a22,x6), inreadset(a12,x18), inreadset(a17,x3), inreadset(a17,x11), inreadset(a17,x19), inreadset(a14,x18), inreadset(a3,x2), inreadset(a19,x21), inreadset(a24,x11), inreadset(a24,x20), inreadset(a24,x21), inreadset(a11,x15), inreadset(a11,x24), inreadset(a7,x8), inreadset(a9,x14), inreadset(a16,x1), inreadset(a16,x19), inreadset(a20,x4), inreadset(a2,x18), inreadset(a2,x24), inreadset(a13,x9), inreadset(a15,x24), inreadset(a6,x6), activity(startflow), activity(a21), activity(a1), 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impossible(a,37), impossible(a,13), impossible(a,29), impossible(a,34), impossible(a,40), nextvis(6,7), nextvis(3,6), nextvis(7,8)}