Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:05 2012

Optimize a model with 1 rows, 40 columns and 40 nonzeros
Model has 48 quadratic objective terms
Presolve removed 0 rows and 4 columns
Presolve time: 0.00s
Presolved: 49 rows, 84 columns, 180 nonzeros
Variable types: 0 continuous, 84 integer (83 binary)
Found heuristic solution: objective 15.0000000

Root relaxation: objective 0.000000e+00, 65 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    9   15.00000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   11    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0   12    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0   12    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
*  108    47              12       7.0000000    0.00000   100%   4.4    0s
*  132    40              12       6.0000000    1.00000  83.3%   5.1    0s

Cutting planes:
  Cover: 89

Explored 181 nodes (1569 simplex iterations) in 0.03 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%