Gurobi 5.0.1 (linux64) logging started Sun Nov 18 09:42:29 2012

Optimize a model with 307 rows, 855 columns and 855 nonzeros
Model has 612 quadratic constraints
Presolve removed 0 rows and 23 columns
Presolve time: 3.57s
Presolved: 307 rows, 832 columns, 832 nonzeros
Variable types: 612 continuous, 220 integer (219 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                     160.0000000          -     -      -    3s
     0     0    0.00000    0  152  160.00000    0.00000   100%     -    3s
     0     0    0.15918    0  204  160.00000    0.15918   100%     -    3s
     0     2    0.17565    0  204  160.00000    0.17565   100%     -    3s
H   54    54                      30.0000000    1.32000  95.6%  33.6    3s
*   55    55              31      29.0000000    1.32000  95.4%  33.4    3s
*   97    80              24      27.0000000    1.35862  95.0%  31.8    3s
*  348   204              26      26.0000000    7.70339  70.4%  32.2    4s
   607   305   10.56382   10  810   26.00000   10.56382  59.4%  37.0    5s
  2340   647   24.50000   32  500   26.00000   17.32203  33.4%  35.0   10s
  4499   961   25.31319   33  482   26.00000   19.76289  24.0%  31.6   15s
  6732   924     cutoff   32        26.00000   21.29246  18.1%  30.7   20s
  9000   602   24.00000   32  480   26.00000   23.00000  11.5%  30.3   25s
* 9734    88              50      25.0000000   23.72727  5.09%  29.9   26s

Explored 9822 nodes (295621 simplex iterations) in 26.56 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.500000000000e+01, best bound 2.500000000000e+01, gap 0.0%