Gurobi 5.0.1 (linux64) logging started Sun Nov 18 02:34:05 2012 Optimize a model with 186 rows, 434 columns and 434 nonzeros Model has 370 quadratic constraints Presolve time: 2.16s Presolved: 186 rows, 434 columns, 434 nonzeros Variable types: 370 continuous, 64 integer (64 binary) Root relaxation: objective 0.000000e+00, 32 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 96.0000000 - - - 2s 0 0 0.00000 0 40 96.00000 0.00000 100% - 2s 0 0 0.20723 0 63 96.00000 0.20723 100% - 2s 0 2 0.27778 0 63 96.00000 0.27778 100% - 2s H 47 47 51.0000000 3.55556 93.0% 42.7 2s H 206 154 46.0000000 5.06667 89.0% 42.9 2s 1094 572 45.50000 63 227 46.00000 14.18182 69.2% 45.9 5s H 4357 1899 45.0000000 25.05258 44.3% 26.7 8s 5432 2244 41.64841 52 214 45.00000 26.35863 41.4% 25.3 10s * 6016 2356 49 44.0000000 26.87457 38.9% 24.5 10s 6771 2589 34.77778 40 270 44.00000 27.50816 37.5% 24.0 15s 8856 3114 36.70461 40 256 44.00000 29.23077 33.6% 22.7 20s 12485 3883 39.95833 42 245 44.00000 31.00000 29.5% 21.2 25s 16947 4482 cutoff 52 44.00000 32.81856 25.4% 20.3 30s 20268 4657 42.70848 49 279 44.00000 33.79534 23.2% 19.8 35s 24854 4564 40.60870 41 238 44.00000 35.08639 20.3% 19.5 40s 29555 4229 38.88719 43 246 44.00000 36.45455 17.1% 19.2 45s 34379 3559 40.15116 42 248 44.00000 37.72438 14.3% 18.9 50s 38524 2265 41.69231 45 262 44.00000 39.14286 11.0% 18.9 55s Explored 42320 nodes (788320 simplex iterations) in 59.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.400000000005e+01, best bound 4.400000000005e+01, gap 0.0%