Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:22:10 2012

Optimize a model with 112 rows, 290 columns and 290 nonzeros
Model has 222 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 1.29s
Presolved: 112 rows, 289 columns, 289 nonzeros
Variable types: 222 continuous, 67 integer (66 binary)

Root relaxation: objective 0.000000e+00, 34 iterations, 0.00 seconds

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

H    0     0                      53.0000000          -     -      -    1s
     0     0    0.00000    0    4   53.00000    0.00000   100%     -    1s
     0     0    0.00000    0    2   53.00000    0.00000   100%     -    1s
     0     0    0.00000    0    2   53.00000    0.00000   100%     -    1s
     0     2    0.00000    0   54   53.00000    0.00000   100%     -    1s
*   29    29              18      19.0000000    3.00000  84.2%  33.6    1s
*  289   136               8      18.0000000    7.37489  59.0%  24.3    1s
*  560   136              17      17.0000000    9.69853  42.9%  22.6    1s
*  645   113               9      16.0000000   10.66667  33.3%  23.5    1s

Cutting planes:
  Gomory: 1

Explored 959 nodes (21835 simplex iterations) in 1.83 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%