Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:48 2012

Optimize a model with 1 rows, 22 columns and 22 nonzeros
Model has 121 quadratic objective terms
Modified 22 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 22 columns, 22 nonzeros
Presolved model has 143 quadratic objective terms
Variable types: 0 continuous, 22 integer (22 binary)
Found heuristic solution: objective 63.0000000

Root relaxation: objective 0.000000e+00, 24 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   63.00000    0.00000   100%     -    0s
H    0     0                      59.0000000    0.00000   100%     -    0s
H    0     0                      57.0000000    0.00000   100%     -    0s
H    0     0                      54.0000000    0.00000   100%     -    0s
     0     2    3.15340    0   22   54.00000    3.15340  94.2%     -    0s
H  117    92                      53.0000000   10.32822  80.5%   2.0    0s
H  134   109                      52.0000000   10.32822  80.1%   2.0    0s
H  376   273                      51.0000000   12.66747  75.2%   2.0    0s
H  607   387                      50.0000000   16.70474  66.6%   2.0    0s
H  713   405                      48.0000000   16.70474  65.2%   2.1    0s

Explored 32321 nodes (65339 simplex iterations) in 1.78 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.800000000000e+01, best bound 4.800000000000e+01, gap 0.0%