Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:35:05 2012 Optimize a model with 170 rows, 398 columns and 398 nonzeros Model has 338 quadratic constraints Presolve time: 1.97s Presolved: 170 rows, 398 columns, 398 nonzeros Variable types: 338 continuous, 60 integer (60 binary) Root relaxation: objective 0.000000e+00, 30 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 79.0000000 - - - 1s 0 0 0.00000 0 30 79.00000 0.00000 100% - 1s 0 0 0.00000 0 60 79.00000 0.00000 100% - 1s 0 0 0.00000 0 60 79.00000 0.00000 100% - 2s 0 2 0.00000 0 60 79.00000 0.00000 100% - 2s H 48 48 45.0000000 6.20000 86.2% 38.9 2s H 118 94 44.0000000 11.43396 74.0% 36.6 2s * 172 129 21 43.0000000 11.45455 73.4% 36.8 2s 1866 742 cutoff 41 43.00000 21.04348 51.1% 32.0 5s 7079 2674 42.94079 37 215 43.00000 27.67647 35.6% 21.5 10s * 7412 2638 50 42.0000000 28.00000 33.3% 21.3 10s * 9279 2811 38 41.0000000 29.00000 29.3% 20.7 12s 9840 2855 33.40909 42 215 41.00000 29.34444 28.4% 20.6 15s 12494 3012 37.25000 37 209 41.00000 30.78947 24.9% 20.2 20s 17374 2932 39.07317 41 205 41.00000 32.96970 19.6% 19.5 25s 21676 2423 39.05000 40 229 41.00000 34.62500 15.5% 19.1 30s 25845 1184 39.06818 41 222 41.00000 37.00000 9.76% 18.9 35s Explored 27570 nodes (514837 simplex iterations) in 36.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.100000000000e+01, best bound 4.100000000000e+01, gap 0.0%