Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:46:48 2012

Optimize a model with 143 rows, 336 columns and 336 nonzeros
Model has 284 quadratic constraints
Presolve time: 1.65s
Presolved: 143 rows, 336 columns, 336 nonzeros
Variable types: 284 continuous, 52 integer (52 binary)

Root relaxation: objective 0.000000e+00, 26 iterations, 0.00 seconds

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

H    0     0                      73.0000000          -     -      -    1s
     0     0    0.00000    0   25   73.00000    0.00000   100%     -    1s
     0     0    0.00000    0   30   73.00000    0.00000   100%     -    1s
     0     0    0.00000    0   28   73.00000    0.00000   100%     -    1s
     0     2    0.00000    0   28   73.00000    0.00000   100%     -    1s
*   42    42              26      48.0000000    6.90909  85.6%  29.2    1s
*   48    44              30      47.0000000    6.90909  85.3%  26.7    1s
H   65    40                      37.0000000    7.68421  79.2%  28.5    1s
*  173   100              22      35.0000000   12.31915  64.8%  29.2    1s
* 1464   409              41      34.0000000   20.84609  38.7%  28.0    3s
  3141   707   32.50000   36  204   34.00000   23.57895  30.7%  22.3    5s
* 5253   593              38      33.0000000   27.33333  17.2%  20.2    8s
  6169   252   31.50000   38  198   33.00000   29.66667  10.1%  19.7   10s

Explored 6527 nodes (126248 simplex iterations) in 10.43 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%