Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:22:26 2012

Optimize a model with 238 rows, 688 columns and 688 nonzeros
Model has 474 quadratic constraints
Presolve removed 0 rows and 31 columns
Presolve time: 2.76s
Presolved: 238 rows, 657 columns, 657 nonzeros
Variable types: 474 continuous, 183 integer (182 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                     115.0000000          -     -      -    2s
     0     0    0.00000    0  132  115.00000    0.00000   100%     -    2s
     0     0    0.14238    0  173  115.00000    0.14238   100%     -    2s
     0     2    0.18421    0  173  115.00000    0.18421   100%     -    2s
H   27    27                      91.0000000    1.20000  98.7%  35.4    2s
H   37    37                      19.0000000    1.20000  93.7%  31.6    2s
*   57    41              34      18.0000000    1.20000  93.3%  29.0    2s
H  489   194                      17.0000000    6.45000  62.1%  27.4    3s
   603   218   12.79070    8  413   17.00000    7.68304  54.8%  28.7    5s
* 2254   138              37      16.0000000   12.97242  18.9%  35.6    9s

Explored 2428 nodes (89335 simplex iterations) in 9.47 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%