Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:42:22 2012

Optimize a model with 216 rows, 459 columns and 459 nonzeros
Model has 430 quadratic constraints
Presolve time: 2.50s
Presolved: 216 rows, 459 columns, 459 nonzeros
Variable types: 430 continuous, 29 integer (29 binary)

Root relaxation: objective 0.000000e+00, 14 iterations, 0.00 seconds

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

H    0     0                     103.0000000          -     -      -    2s
     0     0    0.00000    0   28  103.00000    0.00000   100%     -    2s
     0     0    0.56034    0   29  103.00000    0.56034  99.5%     -    2s
     0     2    0.58333    0   29  103.00000    0.58333  99.4%     -    2s
*   40    40              21      94.0000000    6.06410  93.5%  47.5    2s
H  110    88                      91.0000000    9.87719  89.1%  47.8    2s
*  234   188              19      84.0000000   13.29412  84.2%  50.5    2s
   705   362   51.25000   18  244   84.00000   28.59091  66.0%  57.1    5s
  4281  1370   66.60000   31  270   84.00000   48.60000  42.1%  35.0   10s
* 6058  1764              43      83.0000000   54.38889  34.5%  32.0   12s
  7888  2079   66.20000   30  271   83.00000   57.80000  30.4%  30.4   15s
  8947  2172   78.00000   41  241   83.00000   59.57143  28.2%  30.0   20s
 12216  2338   78.88889   30  255   83.00000   63.94118  23.0%  28.7   25s
 16402  2180     cutoff   41        83.00000   68.00000  18.1%  27.6   30s
 20631  1523   80.41176   30  251   83.00000   72.66667  12.4%  26.8   35s

Explored 23733 nodes (613665 simplex iterations) in 37.79 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.300000000000e+01, best bound 8.300000000000e+01, gap 0.0%