Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:54:32 2012

Optimize a model with 251 rows, 723 columns and 723 nonzeros
Model has 500 quadratic constraints
Presolve removed 0 rows and 22 columns
Presolve time: 2.92s
Presolved: 251 rows, 701 columns, 701 nonzeros
Variable types: 500 continuous, 201 integer (200 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                     121.0000000          -     -      -    2s
     0     0    0.00000    0   87  121.00000    0.00000   100%     -    2s
     0     0    0.00000    0  157  121.00000    0.00000   100%     -    2s
     0     0    0.00000    0  102  121.00000    0.00000   100%     -    3s
     0     2    0.00000    0  102  121.00000    0.00000   100%     -    3s
H   40    36                      21.0000000    2.45161  88.3%  46.0    3s
*  597   264              27      20.0000000    7.63636  61.8%  23.1    3s
   707   299    8.37634   12  683   20.00000    8.37634  58.1%  26.4    5s
*  799   309              27      18.0000000    8.37634  53.5%  29.2    5s
  2211   177     cutoff   32        18.00000   13.00000  27.8%  32.2   10s
* 2739    47              37      17.0000000   14.88571  12.4%  31.9   11s

Explored 2800 nodes (92151 simplex iterations) in 11.79 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%