Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:07 2012

Optimize a model with 1 rows, 8 columns and 8 nonzeros
Model has 13 quadratic objective terms
Presolve time: 0.00s
Presolved: 14 rows, 21 columns, 47 nonzeros
Variable types: 0 continuous, 21 integer (21 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 0.000000e+00, 18 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    8    6.00000    0.00000   100%     -    0s
     0     0    0.00000    0   11    6.00000    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     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: 9

Explored 21 nodes (148 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%