Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:01:57 2012

Optimize a model with 142 rows, 338 columns and 338 nonzeros
Model has 282 quadratic constraints
Presolve time: 1.64s
Presolved: 142 rows, 338 columns, 338 nonzeros
Variable types: 282 continuous, 56 integer (56 binary)

Root relaxation: objective 0.000000e+00, 28 iterations, 0.00 seconds

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

H    0     0                      67.0000000          -     -      -    1s
     0     0    0.00000    0   53   67.00000    0.00000   100%     -    1s
     0     0    0.51061    0   55   67.00000    0.51061  99.2%     -    1s
     0     2    0.52083    0   55   67.00000    0.52083  99.2%     -    1s
*   39    39              22      33.0000000    4.15278  87.4%  34.1    1s
*  133   101              22      32.0000000    7.33333  77.1%  33.4    1s
* 1636   411              34      31.0000000   17.66667  43.0%  28.0    3s
  3110   649   24.65217   30  201   31.00000   22.21739  28.3%  22.2    5s

Explored 6881 nodes (129376 simplex iterations) in 9.97 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%