Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:22:14 2012

Optimize a model with 262 rows, 750 columns and 750 nonzeros
Model has 522 quadratic constraints
Presolve removed 0 rows and 22 columns
Presolve time: 3.04s
Presolved: 262 rows, 728 columns, 728 nonzeros
Variable types: 522 continuous, 206 integer (205 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                     139.0000000          -     -      -    3s
     0     0    0.00000    0  117  139.00000    0.00000   100%     -    3s
     0     0    0.00000    0  176  139.00000    0.00000   100%     -    3s
     0     0    0.00000    0  141  139.00000    0.00000   100%     -    3s
     0     2    0.00000    0  141  139.00000    0.00000   100%     -    3s
H   41    41                      18.0000000    1.93879  89.2%  40.2    3s
*   56    43              30      17.0000000    1.93879  88.6%  37.6    3s
   607   201    9.25515   11  691   17.00000    9.25515  45.6%  34.4    5s
* 1167   180              41      16.0000000    9.63066  39.8%  36.6    6s

Explored 1605 nodes (58068 simplex iterations) in 8.03 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%