Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:46:54 2012

Optimize a model with 107 rows, 258 columns and 258 nonzeros
Model has 212 quadratic constraints
Presolve time: 1.23s
Presolved: 107 rows, 258 columns, 258 nonzeros
Variable types: 212 continuous, 46 integer (46 binary)

Root relaxation: objective 0.000000e+00, 23 iterations, 0.00 seconds

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

H    0     0                      56.0000000          -     -      -    1s
     0     0    0.00000    0   16   56.00000    0.00000   100%     -    1s
     0     0    0.00000    0   25   56.00000    0.00000   100%     -    1s
     0     0    0.00000    0   25   56.00000    0.00000   100%     -    1s
     0     2    0.00000    0   25   56.00000    0.00000   100%     -    1s
*   22    22              16      30.0000000    6.00000  80.0%  29.8    1s
*   74    53              17      28.0000000    7.69565  72.5%  19.7    1s
*   78    45              16      27.0000000    7.69565  71.5%  19.0    1s
*  394   147              14      26.0000000   15.00000  42.3%  18.7    1s
* 1826   317              42      25.0000000   18.33984  26.6%  20.5    3s

Explored 2921 nodes (55080 simplex iterations) in 3.70 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%