Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:02:09 2012

Optimize a model with 160 rows, 343 columns and 343 nonzeros
Model has 318 quadratic constraints
Presolve time: 1.85s
Presolved: 160 rows, 343 columns, 343 nonzeros
Variable types: 318 continuous, 25 integer (25 binary)

Root relaxation: objective 0.000000e+00, 12 iterations, 0.00 seconds

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

H    0     0                      76.0000000          -     -      -    1s
     0     0    0.00000    0   22   76.00000    0.00000   100%     -    1s
     0     0    0.42909    0   25   76.00000    0.42909  99.4%     -    1s
     0     2    0.44976    0   25   76.00000    0.44976  99.4%     -    1s
*   34    34              19      68.0000000    7.40909  89.1%  34.7    1s
H  183   146                      66.0000000   12.63636  80.9%  32.5    2s
*  360   229              18      64.0000000   20.88498  67.4%  32.9    2s
* 1468   440              36      63.0000000   30.88843  51.0%  37.0    4s
  2308   595   55.00000   45  183   63.00000   32.46154  48.5%  31.7    5s
H 3184   789                      62.0000000   38.33333  38.2%  29.2    5s
H 3737   830                      61.0000000   40.66667  33.3%  28.0    6s
  6415   813   57.80000   37  191   61.00000   48.68750  20.2%  24.8   10s

Explored 8842 nodes (202524 simplex iterations) in 12.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.100000000000e+01, best bound 6.100000000000e+01, gap 0.0%