Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:41:52 2012

Optimize a model with 96 rows, 232 columns and 232 nonzeros
Model has 190 quadratic constraints
Presolve time: 1.11s
Presolved: 96 rows, 232 columns, 232 nonzeros
Variable types: 190 continuous, 42 integer (42 binary)

Root relaxation: objective 0.000000e+00, 21 iterations, 0.00 seconds

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

H    0     0                      56.0000000          -     -      -    1s
     0     0    0.00000    0   28   56.00000    0.00000   100%     -    1s
     0     0    0.26290    0   37   56.00000    0.26290   100%     -    1s
     0     2    0.29201    0   37   56.00000    0.29201  99.5%     -    1s
*   34    34              21      26.0000000    2.58239  90.1%  23.7    1s
H   59    48                      25.0000000    2.62259  89.5%  23.6    1s
*   63    47              17      24.0000000    2.62259  89.1%  22.7    1s
H  131    88                      23.0000000    7.78469  66.2%  21.8    1s
*  154    91              14      22.0000000    7.82273  64.4%  21.4    1s
*  563   102              10      21.0000000   12.81818  39.0%  20.0    1s

Cutting planes:
  Gomory: 1

Explored 1137 nodes (21241 simplex iterations) in 1.62 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%