Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:06:38 2012

Optimize a model with 174 rows, 372 columns and 372 nonzeros
Model has 346 quadratic constraints
Presolve time: 2.02s
Presolved: 174 rows, 372 columns, 372 nonzeros
Variable types: 346 continuous, 26 integer (26 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                      89.0000000          -     -      -    2s
     0     0    0.00000    0   24   89.00000    0.00000   100%     -    2s
     0     0    0.55000    0   26   89.00000    0.55000  99.4%     -    2s
     0     0    0.55000    0   26   89.00000    0.55000  99.4%     -    2s
     0     2    0.55000    0   26   89.00000    0.55000  99.4%     -    2s
*   44    44              22      78.0000000    5.78235  92.6%  34.7    2s
H   80    67                      73.0000000    5.85714  92.0%  32.3    2s
*   81    68              21      71.0000000    5.85714  91.8%  32.1    2s
*   82    67              21      70.0000000    5.85714  91.6%  31.7    2s
H  594   349                      68.0000000   26.71096  60.7%  31.9    2s
  1722   565   55.50000   38  202   68.00000   29.22222  57.0%  38.5    5s
  7051  1285   58.87500   38  204   68.00000   49.53846  27.1%  26.5   10s
 13103  1123   66.45000   37  213   68.00000   56.75000  16.5%  23.5   15s

Explored 17048 nodes (377506 simplex iterations) in 17.79 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.800000000112e+01, best bound 6.800000000112e+01, gap 0.0%