Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:54 2012

Optimize a model with 1 rows, 22 columns and 22 nonzeros
Model has 34 quadratic objective terms
Presolve time: 0.00s
Presolved: 35 rows, 56 columns, 124 nonzeros
Variable types: 0 continuous, 56 integer (56 binary)
Found heuristic solution: objective 13.0000000

Root relaxation: objective 0.000000e+00, 39 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   13   13.00000    0.00000   100%     -    0s
     0     0    0.00000    0   12   13.00000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   14   11.00000    0.00000   100%     -    0s
     0     0    0.00000    0    9   11.00000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   16    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0   10    9.00000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   10    8.00000    0.00000   100%     -    0s
*  107    33               5       7.0000000    1.00000  85.7%   5.0    0s

Cutting planes:
  Gomory: 3
  Cover: 60

Explored 158 nodes (1308 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%