Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:28:40 2012

Optimize a model with 137 rows, 347 columns and 347 nonzeros
Model has 272 quadratic constraints
Presolve time: 1.59s
Presolved: 137 rows, 347 columns, 347 nonzeros
Variable types: 272 continuous, 75 integer (75 binary)

Root relaxation: objective 0.000000e+00, 37 iterations, 0.00 seconds

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

H    0     0                      66.0000000          -     -      -    1s
     0     0    0.00000    0    2   66.00000    0.00000   100%     -    1s
     0     0    0.00000    0    3   66.00000    0.00000   100%     -    1s
     0     0    0.00000    0   39   66.00000    0.00000   100%     -    1s
     0     2    0.00000    0   39   66.00000    0.00000   100%     -    1s
*   36    36              25      29.0000000    5.00000  82.8%  28.6    1s
H   54    36                      23.0000000    5.15789  77.6%  24.9    1s
*   55    33              13      20.0000000    5.15789  74.2%  25.1    1s
*  841   114              11      19.0000000   14.24000  25.1%  20.3    2s

Cutting planes:

Explored 1205 nodes (25033 simplex iterations) in 2.26 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.900000000000e+01, best bound 1.900000000000e+01, gap 0.0%