Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:09:18 2012 Optimize a model with 292 rows, 816 columns and 816 nonzeros Model has 582 quadratic constraints Presolve removed 0 rows and 26 columns Presolve time: 3.39s Presolved: 292 rows, 790 columns, 790 nonzeros Variable types: 582 continuous, 208 integer (207 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 136.0000000 - - - 3s 0 0 0.00000 0 43 136.00000 0.00000 100% - 3s 0 0 0.00000 0 180 136.00000 0.00000 100% - 3s 0 0 0.00000 0 173 136.00000 0.00000 100% - 3s 0 2 0.00000 0 170 136.00000 0.00000 100% - 3s H 50 50 29.0000000 2.51460 91.3% 36.1 3s * 94 76 59 28.0000000 2.51460 91.0% 26.2 3s * 191 120 35 27.0000000 3.09086 88.6% 23.6 3s 603 342 13.06780 7 498 27.00000 8.05587 70.2% 24.8 5s 1998 769 25.42883 43 474 27.00000 11.29689 58.2% 36.6 10s 4154 1696 26.58228 62 216 27.00000 14.47497 46.4% 33.2 15s * 4305 1280 74 25.0000000 14.70460 41.2% 33.1 15s H 5620 1281 24.0000000 16.06289 33.1% 33.5 18s 6129 1313 21.17204 44 482 24.00000 16.67649 30.5% 33.7 20s 6511 1338 21.94280 44 493 24.00000 16.82603 29.9% 33.3 25s 6845 1342 19.98885 38 490 24.00000 17.00000 29.2% 33.6 30s 7102 1343 22.53297 43 458 24.00000 17.14286 28.6% 33.4 35s 8238 1331 21.82042 40 496 24.00000 17.92857 25.3% 33.4 40s 9631 1264 cutoff 41 24.00000 18.77746 21.8% 33.1 45s 10413 1168 cutoff 42 24.00000 19.16418 20.1% 32.8 50s 12342 770 21.21135 41 489 24.00000 20.35294 15.2% 32.4 55s Explored 13841 nodes (447277 simplex iterations) in 58.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%