Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:50:49 2012

Optimize a model with 158 rows, 396 columns and 396 nonzeros
Model has 314 quadratic constraints
Presolve time: 1.85s
Presolved: 158 rows, 396 columns, 396 nonzeros
Variable types: 314 continuous, 82 integer (82 binary)

Root relaxation: objective 0.000000e+00, 41 iterations, 0.00 seconds

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

H    0     0                      85.0000000          -     -      -    1s
     0     0    0.00000    0   41   85.00000    0.00000   100%     -    1s
     0     0    0.00000    0   51   85.00000    0.00000   100%     -    1s
     0     0    0.00000    0   51   85.00000    0.00000   100%     -    1s
     0     2    0.00000    0   51   85.00000    0.00000   100%     -    1s
H   40    40                      35.0000000    5.38462  84.6%  42.4    1s
*   74    61              22      32.0000000    5.73684  82.1%  35.5    2s
*  159   113              17      31.0000000    6.09091  80.4%  31.5    2s
H  450   228                      30.0000000   10.57143  64.8%  26.0    2s
*  934   392              57      29.0000000   13.07513  54.9%  34.0    3s
  2221   658   21.46479   40  240   29.00000   15.75676  45.7%  25.5    5s
* 3871  1024              52      28.0000000   18.48889  34.0%  22.2    8s
  5001  1090   24.00000   40  238   28.00000   19.96429  28.7%  21.1   10s
  8943   691   25.21875   43  218   28.00000   23.60870  15.7%  19.6   15s

Explored 10330 nodes (198107 simplex iterations) in 16.50 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%