Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:55:58 2012

Optimize a model with 1 rows, 23 columns and 23 nonzeros
Model has 134 quadratic objective terms
Modified 23 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 23 columns, 23 nonzeros
Presolved model has 157 quadratic objective terms
Variable types: 0 continuous, 23 integer (23 binary)
Found heuristic solution: objective 72.0000000

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   72.00000    0.00000   100%     -    0s
H    0     0                      71.0000000    0.00000   100%     -    0s
H    0     0                      66.0000000    0.00000   100%     -    0s
H    0     0                      57.0000000    0.00000   100%     -    0s
H    0     0                      56.0000000    0.00000   100%     -    0s
     0     2    3.12883    0   23   56.00000    3.12883  94.4%     -    0s
H  608   408                      55.0000000   16.23298  70.5%   2.1    0s
H  756   453                      54.0000000   16.23298  69.9%   2.1    0s
H 3411  1239                      53.0000000   29.55371  44.2%   2.1    0s

Explored 55369 nodes (114600 simplex iterations) in 2.81 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.300000000000e+01, best bound 5.300000000000e+01, gap 0.0%