Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:42:04 2012

Optimize a model with 107 rows, 254 columns and 254 nonzeros
Model has 212 quadratic constraints
Presolve time: 1.24s
Presolved: 107 rows, 254 columns, 254 nonzeros
Variable types: 212 continuous, 42 integer (42 binary)

Root relaxation: objective 0.000000e+00, 21 iterations, 0.00 seconds

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

H    0     0                      54.0000000          -     -      -    1s
     0     0    0.00000    0   40   54.00000    0.00000   100%     -    1s
     0     0    0.47500    0   42   54.00000    0.47500  99.1%     -    1s
     0     0    0.47500    0   42   54.00000    0.47500  99.1%     -    1s
     0     2    0.47500    0   42   54.00000    0.47500  99.1%     -    1s
H   27    27                      43.0000000    2.62500  93.9%  31.9    1s
*   36    35              20      33.0000000    2.62500  92.0%  27.3    1s
H   57    44                      29.0000000    2.64706  90.9%  26.3    1s
*   64    43              17      28.0000000    2.64706  90.5%  24.4    1s
*  176   107              16      27.0000000    8.47772  68.6%  27.7    1s
* 1338   247              36      26.0000000   16.12121  38.0%  25.5    2s
* 1383   213              38      25.0000000   16.50000  34.0%  25.2    2s

Explored 2209 nodes (47556 simplex iterations) in 3.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.500000000000e+01, best bound 2.500000000000e+01, gap 0.0%