Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:14:14 2012

Optimize a model with 175 rows, 375 columns and 375 nonzeros
Model has 348 quadratic constraints
Presolve time: 2.03s
Presolved: 175 rows, 375 columns, 375 nonzeros
Variable types: 348 continuous, 27 integer (27 binary)

Root relaxation: objective 0.000000e+00, 13 iterations, 0.00 seconds

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

H    0     0                      87.0000000          -     -      -    2s
     0     0    0.00000    0   24   87.00000    0.00000   100%     -    2s
     0     0    0.47475    0   27   87.00000    0.47475  99.5%     -    2s
     0     2    0.51779    0   27   87.00000    0.51779  99.4%     -    2s
*   36    36              19      74.0000000    8.34545  88.7%  38.8    2s
*   40    35              20      72.0000000    8.34545  88.4%  35.2    2s
H  206   164                      70.0000000   18.15584  74.1%  36.4    2s
  1687   517     cutoff   38        70.00000   33.00000  52.9%  39.0    5s
  7311  2232   67.50000   40  183   70.00000   47.66667  31.9%  25.0   10s
 13591  3293     cutoff   40        70.00000   53.00000  24.3%  22.1   15s
*15667  3379              59      69.0000000   54.25000  21.4%  21.6   16s
H16057  3284                      68.0000000   54.66667  19.6%  21.5   20s
 22213  2610   62.13333   38  196   68.00000   59.11111  13.1%  20.7   25s

Explored 27708 nodes (545464 simplex iterations) in 28.66 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.800000000000e+01, best bound 6.800000000000e+01, gap 0.0%