Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:56:21 2012

Optimize a model with 130 rows, 281 columns and 281 nonzeros
Model has 258 quadratic constraints
Presolve time: 1.50s
Presolved: 130 rows, 281 columns, 281 nonzeros
Variable types: 258 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                      69.0000000          -     -      -    1s
     0     0    0.00000    0   22   69.00000    0.00000   100%     -    1s
     0     0    0.47431    0   23   69.00000    0.47431  99.3%     -    1s
     0     2    0.57576    0   23   69.00000    0.57576  99.2%     -    1s
*   36    36              20      60.0000000    6.36364  89.4%  27.5    1s
*   65    53              15      59.0000000    6.47727  89.0%  28.0    1s
H   92    66                      54.0000000    9.98864  81.5%  26.4    1s
*  312   154              15      53.0000000   19.41476  63.4%  25.3    1s
*  376   176              17      52.0000000   19.75000  62.0%  25.0    1s
*  378   160              15      50.0000000   19.75000  60.5%  24.9    1s

Explored 3952 nodes (82200 simplex iterations) in 4.48 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+01, best bound 5.000000000000e+01, gap 0.0%