Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:43:48 2012

Optimize a model with 104 rows, 250 columns and 250 nonzeros
Model has 206 quadratic constraints
Presolve time: 1.20s
Presolved: 104 rows, 250 columns, 250 nonzeros
Variable types: 206 continuous, 44 integer (44 binary)

Root relaxation: objective 0.000000e+00, 22 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

H    0     0                      52.0000000          -     -      -    1s
     0     0    0.00000    0   19   52.00000    0.00000   100%     -    1s
     0     0    0.00000    0   29   52.00000    0.00000   100%     -    1s
     0     0    0.00000    0   27   52.00000    0.00000   100%     -    1s
     0     2    0.00000    0   27   52.00000    0.00000   100%     -    1s
*   41    41              24      38.0000000    6.30000  83.4%  23.0    1s
*   43    39              25      37.0000000    6.30000  83.0%  22.1    1s
H   54    45                      36.0000000    6.42629  82.1%  22.2    1s
*   69    43              20      25.0000000    6.42629  74.3%  19.8    1s
*   71    37              20      24.0000000    6.42629  73.2%  19.5    1s
*  503   102              11      23.0000000   14.93243  35.1%  20.8    1s
*  804    63              15      22.0000000   17.86667  18.8%  20.3    1s
*  856    31              11      21.0000000   19.00000  9.52%  20.0    1s

Cutting planes:
  Gomory: 2

Explored 896 nodes (17845 simplex iterations) in 1.65 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%