Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:45:11 2012

Optimize a model with 129 rows, 301 columns and 301 nonzeros
Model has 256 quadratic constraints
Presolve time: 1.49s
Presolved: 129 rows, 301 columns, 301 nonzeros
Variable types: 256 continuous, 45 integer (45 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                      58.0000000          -     -      -    1s
     0     0    0.00000    0   26   58.00000    0.00000   100%     -    1s
     0     0    0.03104    0   41   58.00000    0.03104   100%     -    1s
     0     2    0.06993    0   41   58.00000    0.06993   100%     -    1s
*   41    41              24      37.0000000    4.11111  88.9%  24.9    1s
*  361   215              13      36.0000000   11.10000  69.2%  28.0    1s
*  435   229              19      35.0000000   12.76654  63.5%  29.0    1s
*  448   222              16      34.0000000   13.02987  61.7%  28.7    1s
*  556   230              11      32.0000000   15.00000  53.1%  29.1    1s
* 1667   275              37      31.0000000   20.77811  33.0%  27.6    3s
* 1862   215              33      29.0000000   22.32294  23.0%  26.4    3s
* 1956   135              29      28.0000000   23.60000  15.7%  25.9    3s

Explored 2145 nodes (53272 simplex iterations) in 3.73 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.800000000000e+01, best bound 2.800000000000e+01, gap 0.0%