Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:56:48 2012

Optimize a model with 135 rows, 291 columns and 291 nonzeros
Model has 268 quadratic constraints
Presolve time: 1.56s
Presolved: 135 rows, 291 columns, 291 nonzeros
Variable types: 268 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                      75.0000000          -     -      -    1s
     0     0    0.00000    0   22   75.00000    0.00000   100%     -    1s
     0     0    0.52174    0   23   75.00000    0.52174  99.3%     -    1s
     0     2    0.63333    0   23   75.00000    0.63333  99.2%     -    1s
*   31    31              18      65.0000000    8.26000  87.3%  29.6    1s
*   58    48              15      60.0000000    8.31667  86.1%  30.4    1s
*   81    59              13      57.0000000   13.89474  75.6%  32.1    1s
*  210   130              15      55.0000000   18.30579  66.7%  31.3    1s
*  220   123              15      54.0000000   18.30579  66.1%  30.1    1s
* 1844   318              35      53.0000000   34.61538  34.7%  27.1    3s

Explored 3478 nodes (78958 simplex iterations) in 4.55 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.300000000000e+01, best bound 5.300000000000e+01, gap 0.0%