Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:37 2012

Optimize a model with 1 rows, 51 columns and 51 nonzeros
Model has 64 quadratic objective terms
Presolve removed 0 rows and 2 columns
Presolve time: 0.00s
Presolved: 65 rows, 113 columns, 241 nonzeros
Variable types: 0 continuous, 113 integer (112 binary)
Found heuristic solution: objective 30.0000000

Root relaxation: objective 0.000000e+00, 80 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   18   30.00000    0.00000   100%     -    0s
H    0     0                      17.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   18   17.00000    0.00000   100%     -    0s
     0     0    0.00000    0   12   17.00000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   17    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0   16    9.00000    0.00000   100%     -    0s
     0     2    0.00000    0    9    9.00000    0.00000   100%     -    0s
H    1     1                       8.0000000    0.00000   100%   3.0    0s
H  154    71                       7.0000000    0.00000   100%   5.5    0s
*  212    75              12       6.0000000    1.00000  83.3%   7.7    0s
*  240    43               6       5.0000000    1.57143  68.6%  13.6    0s

Cutting planes:
  Cover: 123

Explored 285 nodes (4846 simplex iterations) in 0.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%