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(6,15), next(7,8), next(8,9), next(9,10), next(10,11), next(11,12), next(12,13), next(13,14), next(15,16), next(16,17), next(16,24), next(17,18), next(18,19), next(19,20), next(20,21), next(21,22), next(22,23), next(24,25), next(25,26), next(26,27), next(27,28), next(28,29), next(29,30), next(30,31), next(31,32), doAt(startflow,4), doAt(a9,5), doAt(a5,6), doAt(a14,7), doAt(a12,8), doAt(a8,9), doAt(a8,18), doAt(a8,27), doAt(a2,10), doAt(a2,19), doAt(a2,28), doAt(a3,11), doAt(a3,20), doAt(a3,29), doAt(a4,12), doAt(a4,21), doAt(a4,30), doAt(endflow,13), doAt(endflow,22), doAt(endflow,31), doAt(a10,15), doAt(a13,16), doAt(a6,17), doAt(a11,24), doAt(a7,25), doAt(a1,26), 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(a9,x5), ineffset(a5,co10), ineffset(a5,co11), ineffset(a14,x2), ineffset(a14,x9), ineffset(a12,x5), ineffset(a8,x4), ineffset(a8,x12), ineffset(a2,x4), ineffset(a3,x11), ineffset(a4,x1), ineffset(a4,x6), ineffset(endflow,x1), ineffset(endflow,x6), ineffset(endflow,x7), ineffset(endflow,x15), ineffset(endflow,finished), ineffset(a10,x12), ineffset(a13,co26), ineffset(a13,co27), ineffset(a6,x13), ineffset(a11,x9), ineffset(a7,x5), ineffset(a7,x7), ineffset(a7,x15), ineffset(a1,x9), activity(startflow), activity(a9), activity(a5), activity(a14), activity(a12), activity(a8), activity(a2), activity(a3), activity(a4), activity(endflow), activity(a10), activity(a13), activity(a6), activity(a11), activity(a7), activity(a1), effectsObserved(startflow,1), effectsObserved(a9,2), effectsObserved(a5,3), inreadset(a9,x10), inreadset(a5,x1), inreadset(a5,x2), inreadset(a14,x4), inreadset(a14,x13), inreadset(a14,x15), inreadset(a12,x1), inreadset(a8,x6), inreadset(a8,x7), inreadset(a2,x5), inreadset(a2,x9), inreadset(a2,x10), inreadset(a3,x13), inreadset(a4,x3), inreadset(a4,x8), inreadset(a4,x15), 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,co10), inreadset(endflow,co11), inreadset(endflow,co26), inreadset(endflow,co27), inreadset(endflow,finished), inreadset(a10,x2), inreadset(a10,x14), inreadset(a13,x2), inreadset(a13,x14), inreadset(a6,x2), inreadset(a6,x11), inreadset(a11,x6), inreadset(a11,x10), inreadset(a7,x10), inreadset(a7,x12), inreadset(a1,x4), inreadset(a1,x5), inreadset(a1,x14), do(startflow,1), do(a9,2), do(a5,3), nextvis(1,2), nextvis(2,3), do(a9,5), do(a5,6), do(a14,7), do(a12,8), do(a8,9), impossible(a,18), impossible(a,27), do(a2,10), impossible(a,19), impossible(a,28), do(a3,11), impossible(a,20), impossible(a,29), do(a4,12), impossible(a,21), impossible(a,30), do(endflow,13), impossible(a,22), impossible(a,31), impossible(a,15), impossible(a,16), impossible(a,17), impossible(a,24), impossible(a,25), impossible(a,26), impossible(a,23), impossible(a,32), nextvis(5,6), nextvis(6,7), nextvis(7,8), nextvis(8,9), nextvis(9,10), nextvis(10,11), nextvis(11,12), nextvis(12,13), nextvis(3,5), nextvis(13,14)}