Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:05 2012

Optimize a model with 1 rows, 7 columns and 7 nonzeros
Model has 13 quadratic objective terms
Presolve time: 0.00s
Presolved: 14 rows, 20 columns, 46 nonzeros
Variable types: 0 continuous, 20 integer (20 binary)
Found heuristic solution: objective 9.0000000
Found heuristic solution: objective 7.0000000

Root relaxation: objective 0.000000e+00, 15 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    7    7.00000    0.00000   100%     -    0s
     0     0    0.00000    0    7    7.00000    0.00000   100%     -    0s
     0     0    0.00000    0    6    7.00000    0.00000   100%     -    0s
H    0     0                       6.0000000    0.00000   100%     -    0s
     0     0    0.00000    0    6    6.00000    0.00000   100%     -    0s
     0     0    0.00000    0    6    6.00000    0.00000   100%     -    0s
     0     2    0.00000    0    6    6.00000    0.00000   100%     -    0s

Cutting planes:
  Cover: 15

Explored 22 nodes (144 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%