Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:42:43 2012

Optimize a model with 98 rows, 237 columns and 237 nonzeros
Model has 194 quadratic constraints
Presolve time: 1.13s
Presolved: 98 rows, 237 columns, 237 nonzeros
Variable types: 194 continuous, 43 integer (43 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                      46.0000000          -     -      -    1s
     0     0    0.00000    0   41   46.00000    0.00000   100%     -    1s
     0     0    0.48605    0   43   46.00000    0.48605  98.9%     -    1s
     0     2    0.50789    0   43   46.00000    0.50789  98.9%     -    1s
*   34    34              19      26.0000000    1.77500  93.2%  20.9    1s
H   65    54                      24.0000000    1.78636  92.6%  20.0    1s
*  121    90              16      23.0000000    3.40909  85.2%  22.9    1s
*  175   105              19      22.0000000    6.52885  70.3%  23.5    1s
*  176    87              19      21.0000000    6.52885  68.9%  23.4    1s
*  819    79              11      20.0000000   14.72727  26.4%  20.7    1s

Cutting planes:
  Gomory: 1

Explored 996 nodes (20385 simplex iterations) in 1.58 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.000000000000e+01, best bound 2.000000000000e+01, gap 0.0%