Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:32 2012

Optimize a model with 114 rows, 291 columns and 291 nonzeros
Model has 226 quadratic constraints
Presolve removed 0 rows and 2 columns
Presolve time: 1.32s
Presolved: 114 rows, 289 columns, 289 nonzeros
Variable types: 226 continuous, 63 integer (62 binary)

Root relaxation: objective 0.000000e+00, 30 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   23   66.00000    0.00000   100%     -    1s
     0     0    0.00000    0   26   66.00000    0.00000   100%     -    1s
     0     0    0.00000    0   50   66.00000    0.00000   100%     -    1s
     0     2    0.00000    0   50   66.00000    0.00000   100%     -    1s
*   29    29              19      20.0000000    3.36000  83.2%  29.6    1s
*  291   122              20      19.0000000    8.73182  54.0%  18.3    1s
* 1606    95              47      18.0000000   14.11111  21.6%  21.3    2s

Explored 1761 nodes (36784 simplex iterations) in 2.78 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%