Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:56:31 2012

Optimize a model with 131 rows, 308 columns and 308 nonzeros
Model has 260 quadratic constraints
Presolve time: 1.53s
Presolved: 131 rows, 308 columns, 308 nonzeros
Variable types: 260 continuous, 48 integer (48 binary)

Root relaxation: objective 0.000000e+00, 24 iterations, 0.00 seconds

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

H    0     0                      75.0000000          -     -      -    1s
     0     0    0.00000    0   28   75.00000    0.00000   100%     -    1s
     0     0    0.11180    0   46   75.00000    0.11180   100%     -    1s
     0     2    0.15385    0   46   75.00000    0.15385   100%     -    1s
*   35    35              21      33.0000000    4.16454  87.4%  28.3    1s
* 1284   395              44      32.0000000   16.23016  49.3%  29.3    3s
* 2663   565              39      31.0000000   21.41667  30.9%  22.4    4s
  3484   586   28.00000   37  167   31.00000   23.37500  24.6%  21.1    5s

Explored 5415 nodes (105045 simplex iterations) in 7.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.100000000000e+01, best bound 3.100000000000e+01, gap 0.0%