Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:04 2012

Optimize a model with 1 rows, 34 columns and 34 nonzeros
Model has 60 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 61 rows, 93 columns, 213 nonzeros
Variable types: 0 continuous, 93 integer (92 binary)
Found heuristic solution: objective 20.0000000

Root relaxation: objective 0.000000e+00, 84 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   22   20.00000    0.00000   100%     -    0s
H    0     0                      16.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   26   16.00000    0.00000   100%     -    0s
     0     0    0.00000    0   18   16.00000    0.00000   100%     -    0s
     0     0    0.00000    0   17   16.00000    0.00000   100%     -    0s
H    0     0                      14.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   18   14.00000    0.00000   100%     -    0s
     0     0    0.00000    0   18   14.00000    0.00000   100%     -    0s
     0     2    0.00000    0   18   14.00000    0.00000   100%     -    0s
H  106    66                      13.0000000    1.00000  92.3%   5.8    0s
*  262    61               6      12.0000000    3.00000  75.0%  10.4    0s

Cutting planes:
  Cover: 115

Explored 354 nodes (4469 simplex iterations) in 0.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%