Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:43:01 2012

Optimize a model with 1 rows, 44 columns and 44 nonzeros
Model has 103 quadratic objective terms
Modified 43 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 44 columns, 44 nonzeros
Presolved model has 146 quadratic objective terms
Variable types: 0 continuous, 44 integer (44 binary)
Found heuristic solution: objective 50.0000000

Root relaxation: objective 0.000000e+00, 47 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   43   50.00000    0.00000   100%     -    0s
H    0     0                      29.0000000    0.00000   100%     -    0s
H    0     0                      28.0000000    0.00000   100%     -    0s
H    0     0                      27.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   43   27.00000    0.00000   100%     -    0s
H    3     3                      25.0000000    3.10265  87.6%   2.0    0s
H  216   170                      23.0000000    3.75283  83.7%   2.8    0s
H  622   393                      22.0000000    5.11770  76.7%   2.8    0s
H  640   386                      21.0000000    5.11770  75.6%   2.8    0s

Explored 24991 nodes (67122 simplex iterations) in 2.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%