Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:56 2012

Optimize a model with 1 rows, 33 columns and 33 nonzeros
Model has 67 quadratic objective terms
Presolve time: 0.00s
Presolved: 68 rows, 100 columns, 234 nonzeros
Variable types: 0 continuous, 100 integer (100 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 0.000000e+00, 85 iterations, 0.00 seconds

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

     0     0    0.00000    0   26   27.00000    0.00000   100%     -    0s
H    0     0                      26.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   24   26.00000    0.00000   100%     -    0s
H    0     0                      24.0000000    0.00000   100%     -    0s
H    0     0                      23.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   78   23.00000    0.00000   100%     -    0s
     0     0    0.00000    0   22   23.00000    0.00000   100%     -    0s
H    0     0                      22.0000000    0.00000   100%     -    0s
H    0     0                      20.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   22   20.00000    0.00000   100%     -    0s
H   20    20                      19.0000000    0.00000   100%   3.4    0s
H  135    86                      18.0000000    0.82353  95.4%   5.8    0s
H  156    88                      17.0000000    0.83333  95.1%   6.0    0s
H  189    87                      16.0000000    0.91667  94.3%   6.2    0s

Cutting planes:
  Gomory: 3
  Cover: 127

Explored 421 nodes (6162 simplex iterations) in 0.10 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%