Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:55:55 2012

Optimize a model with 1 rows, 23 columns and 23 nonzeros
Model has 132 quadratic objective terms
Modified 23 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 23 columns, 23 nonzeros
Presolved model has 155 quadratic objective terms
Variable types: 0 continuous, 23 integer (23 binary)
Found heuristic solution: objective 65.0000000

Root relaxation: objective 0.000000e+00, 25 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   23   65.00000    0.00000   100%     -    0s
H    0     0                      60.0000000    0.00000   100%     -    0s
H    0     0                      52.0000000    0.00000   100%     -    0s
     0     2    3.11697    0   23   52.00000    3.11697  94.0%     -    0s
H 1162   543                      51.0000000   20.09885  60.6%   2.0    0s

Explored 53890 nodes (108752 simplex iterations) in 2.40 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.100000000000e+01, best bound 5.100000000000e+01, gap 0.0%