Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:47 2012

Optimize a model with 1 rows, 22 columns and 22 nonzeros
Model has 113 quadratic objective terms
Modified 22 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 22 columns, 22 nonzeros
Presolved model has 135 quadratic objective terms
Variable types: 0 continuous, 22 integer (22 binary)
Found heuristic solution: objective 54.0000000

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   54.00000    0.00000   100%     -    0s
     0     2    2.86235    0   22   54.00000    2.86235  94.7%     -    0s
H   40    32                      50.0000000    5.71730  88.6%   2.3    0s
H   40    30                      47.0000000    5.71730  87.8%   2.3    0s
*  399   218              11      45.0000000   12.00968  73.3%   2.1    0s

Explored 23269 nodes (49706 simplex iterations) in 1.27 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.500000000000e+01, best bound 4.500000000000e+01, gap 0.0%