Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:40 2012

Optimize a model with 1 rows, 45 columns and 45 nonzeros
Model has 57 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 58 rows, 101 columns, 215 nonzeros
Variable types: 0 continuous, 101 integer (100 binary)
Found heuristic solution: objective 17.0000000

Root relaxation: objective 0.000000e+00, 81 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   17.00000    0.00000   100%     -    0s
     0     0    0.00000    0   14   17.00000    0.00000   100%     -    0s
H    0     0                      14.0000000    0.00000   100%     -    0s
H    0     0                      13.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   40   13.00000    0.00000   100%     -    0s
     0     0    0.00000    0   13   13.00000    0.00000   100%     -    0s
H    0     0                      10.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   10   10.00000    0.00000   100%     -    0s
H   58    44                       9.0000000    0.00000   100%   2.5    0s
H  152    79                       8.0000000    0.00000   100%   6.8    0s
*  198    67              14       7.0000000    1.00000  85.7%   9.0    0s
H  230    31                       6.0000000    3.18750  46.9%  12.7    0s

Cutting planes:
  Gomory: 1
  Cover: 107

Explored 265 nodes (3877 simplex iterations) in 0.06 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%