Gurobi 5.0.1 (linux64) logging started Sun Nov 18 09:37:01 2012

Optimize a model with 313 rows, 866 columns and 866 nonzeros
Model has 624 quadratic constraints
Presolve removed 0 rows and 12 columns
Presolve time: 3.64s
Presolved: 313 rows, 854 columns, 854 nonzeros
Variable types: 624 continuous, 230 integer (229 binary)

Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds

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

H    0     0                     158.0000000          -     -      -    3s
     0     0    0.00000    0   61  158.00000    0.00000   100%     -    3s
     0     0    0.00000    0  107  158.00000    0.00000   100%     -    3s
     0     0    0.00000    0   79  158.00000    0.00000   100%     -    3s
     0     2    0.00000    0   79  158.00000    0.00000   100%     -    3s
*   28    28              23      31.0000000    2.13324  93.1%  63.1    3s
*  183   132              50      30.0000000    3.39726  88.7%  27.3    4s
H  216   146                      29.0000000    3.62015  87.5%  29.2    4s
   601   351   20.07022   10   79   29.00000    8.38095  71.1%  24.1    6s
*  931   409              60      26.0000000    8.44706  67.5%  43.9    7s
*  958   383              41      25.0000000    8.49180  66.0%  43.6    8s
  1612   332     cutoff   32        25.00000   14.05667  43.8%  41.4   10s
* 2606   360              37      24.0000000   17.24316  28.2%  40.5   12s
  2917   336   22.41770   37  456   24.00000   18.01653  24.9%  40.4   15s
  3390   265   22.10983   31  515   24.00000   19.00000  20.8%  39.4   20s

Explored 4102 nodes (159949 simplex iterations) in 22.70 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%