Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:56:29 2012

Optimize a model with 133 rows, 287 columns and 287 nonzeros
Model has 264 quadratic constraints
Presolve time: 1.54s
Presolved: 133 rows, 287 columns, 287 nonzeros
Variable types: 264 continuous, 23 integer (23 binary)

Root relaxation: objective 0.000000e+00, 11 iterations, 0.00 seconds

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

H    0     0                      74.0000000          -     -      -    1s
     0     0    0.00000    0   22   74.00000    0.00000   100%     -    1s
     0     0    0.65217    0   23   74.00000    0.65217  99.1%     -    1s
     0     2    1.06250    0   23   74.00000    1.06250  98.6%     -    1s
*   32    32              18      59.0000000    5.54167  90.6%  28.8    1s
*   33    31              19      56.0000000    5.54167  90.1%  28.1    1s
*  156   119              17      55.0000000   10.12500  81.6%  28.9    1s
H  480   220                      53.0000000   21.70295  59.1%  27.7    1s
*  482   212              14      52.0000000   21.70295  58.3%  27.6    1s
* 3649   781              40      51.0000000   36.63636  28.2%  20.9    4s
  4417   796     cutoff   53        51.00000   39.00000  23.5%  20.0    5s

Explored 6742 nodes (124582 simplex iterations) in 8.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.100000000000e+01, best bound 5.100000000000e+01, gap 0.0%