Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:09:27 2012

Optimize a model with 240 rows, 684 columns and 684 nonzeros
Model has 478 quadratic constraints
Presolve removed 0 rows and 20 columns
Presolve time: 2.79s
Presolved: 240 rows, 664 columns, 664 nonzeros
Variable types: 478 continuous, 186 integer (185 binary)

Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds

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

H    0     0                     128.0000000          -     -      -    2s
     0     0    0.00000    0   12  128.00000    0.00000   100%     -    2s
     0     0    0.00000    0   88  128.00000    0.00000   100%     -    2s
     0     0    0.00000    0   88  128.00000    0.00000   100%     -    2s
     0     2    0.00000    0   88  128.00000    0.00000   100%     -    2s
*   35    33              27      21.0000000    2.42105  88.5%  50.2    2s
*   38    32              29      20.0000000    2.42105  87.9%  48.1    3s
*  170    82              23      19.0000000    3.47059  81.7%  28.3    3s
*  502   202              18      18.0000000    7.44444  58.6%  21.5    3s
H  535   188                      17.0000000    7.79012  54.2%  21.3    3s
   811   282    8.66923   28  406   17.00000    8.66923  49.0%  29.8    5s
* 2392   118              45      16.0000000   13.33333  16.7%  30.3    7s

Explored 2532 nodes (80017 simplex iterations) in 8.23 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%