Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:55 2012

Optimize a model with 1 rows, 33 columns and 33 nonzeros
Model has 48 quadratic objective terms
Presolve time: 0.00s
Presolved: 49 rows, 81 columns, 177 nonzeros
Variable types: 0 continuous, 81 integer (81 binary)
Found heuristic solution: objective 19.0000000

Root relaxation: objective 0.000000e+00, 69 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   14   19.00000    0.00000   100%     -    0s
H    0     0                      14.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   18   14.00000    0.00000   100%     -    0s
     0     0    0.00000    0   11   14.00000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   15    8.00000    0.00000   100%     -    0s
     0     0    0.00000    0   15    8.00000    0.00000   100%     -    0s
     0     2    0.00000    0   15    8.00000    0.00000   100%     -    0s
*  128    29               6       7.0000000    1.00000  85.7%   8.1    0s

Cutting planes:
  Gomory: 2
  Cover: 89

Explored 159 nodes (1830 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%