Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:23:53 2012

Optimize a model with 250 rows, 713 columns and 713 nonzeros
Model has 498 quadratic constraints
Presolve removed 0 rows and 13 columns
Presolve time: 2.91s
Presolved: 250 rows, 700 columns, 700 nonzeros
Variable types: 498 continuous, 202 integer (201 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                     121.0000000          -     -      -    2s
     0     0    0.00000    0    5  121.00000    0.00000   100%     -    2s
     0     0    0.00000    0    2  121.00000    0.00000   100%     -    2s
     0     0    0.00000    0   85  121.00000    0.00000   100%     -    2s
     0     2    0.00000    0   84  121.00000    0.00000   100%     -    3s
H   50    50                      29.0000000    1.96154  93.2%  29.4    3s
H   54    54                      25.0000000    1.96154  92.2%  30.3    3s
*  155    99              65      24.0000000    2.00000  91.7%  19.5    3s
H  183    95                      21.0000000    2.33333  88.9%  19.4    3s
*  365   159              36      19.0000000    2.83333  85.1%  17.6    3s
*  538   224              17      18.0000000    5.65045  68.6%  18.6    3s
   787   332   10.70784   16  633   18.00000    6.48544  64.0%  30.5    5s
* 1105   351              42      17.0000000    8.53191  49.8%  33.1    5s
* 1551   196              37      16.0000000   11.21469  29.9%  32.3    6s

Explored 2059 nodes (66906 simplex iterations) in 7.69 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%