Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:55:46 2012

Optimize a model with 1 rows, 23 columns and 23 nonzeros
Model has 125 quadratic objective terms
Modified 23 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 23 columns, 23 nonzeros
Presolved model has 148 quadratic objective terms
Variable types: 0 continuous, 23 integer (23 binary)
Found heuristic solution: objective 66.0000000

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   66.00000    0.00000   100%     -    0s
H    0     0                      62.0000000    0.00000   100%     -    0s
H    0     0                      53.0000000    0.00000   100%     -    0s
     0     2    2.86322    0   23   53.00000    2.86322  94.6%     -    0s
*  326   255              15      52.0000000   12.36942  76.2%   2.0    0s
*  334   237              18      50.0000000   12.36942  75.3%   2.1    0s
H 1249   480                      49.0000000   20.81710  57.5%   2.1    0s
H 2619   836                      48.0000000   26.64716  44.5%   2.1    0s

Explored 29853 nodes (61071 simplex iterations) in 1.79 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%