Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:31 2012

Optimize a model with 47 rows, 121 columns and 121 nonzeros
Model has 92 quadratic constraints
Presolve time: 0.54s
Presolved: 47 rows, 121 columns, 121 nonzeros
Variable types: 92 continuous, 29 integer (29 binary)

Root relaxation: objective 0.000000e+00, 14 iterations, 0.00 seconds

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

H    0     0                      23.0000000          -     -      -    0s
     0     0    0.00000    0    2   23.00000    0.00000   100%     -    0s
     0     0    0.00000    0    2   23.00000    0.00000   100%     -    0s
     0     0    0.00000    0    2   23.00000    0.00000   100%     -    0s
     0     2    0.48000    0   26   23.00000    0.48000  97.9%     -    0s
*   21    21              12      14.0000000    1.39130  90.1%  20.3    0s
*   22    20              13      13.0000000    1.39130  89.3%  19.7    0s
*   25    19              13      12.0000000    1.39130  88.4%  17.8    0s
*   36    25               9       9.0000000    1.48000  83.6%  16.1    0s
*   54    28              12       8.0000000    1.66667  79.2%  13.5    0s
*   87    18               5       7.0000000    2.08333  70.2%  15.1    0s

Cutting planes:
  Gomory: 1

Explored 116 nodes (1836 simplex iterations) in 0.58 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%