Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:03:15 2012 Optimize a model with 170 rows, 394 columns and 394 nonzeros Model has 338 quadratic constraints Presolve time: 1.97s Presolved: 170 rows, 394 columns, 394 nonzeros Variable types: 338 continuous, 56 integer (56 binary) Root relaxation: objective 0.000000e+00, 28 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 82.0000000 - - - 1s 0 0 0.00000 0 30 82.00000 0.00000 100% - 1s 0 0 0.00149 0 48 82.00000 0.00149 100% - 1s 0 2 0.03571 0 48 82.00000 0.03571 100% - 2s H 47 47 50.0000000 3.21429 93.6% 36.2 2s * 47 47 26 49.0000000 3.21429 93.4% 36.4 2s H 88 70 46.0000000 3.24242 93.0% 35.4 2s H 258 167 43.0000000 9.66667 77.5% 37.2 2s 1686 584 30.72340 31 242 43.00000 19.26923 55.2% 35.3 5s * 5872 2006 38 42.0000000 28.00000 33.3% 22.0 8s * 6354 1976 36 41.0000000 28.50000 30.5% 21.6 9s 7069 2077 cutoff 39 41.00000 29.21000 28.8% 21.1 10s 8387 2102 38.09091 36 232 41.00000 30.76600 25.0% 20.4 15s 11312 1932 40.00000 42 216 41.00000 33.45455 18.4% 19.6 20s Explored 16159 nodes (296306 simplex iterations) in 23.97 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%