Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:55:54 2012

Optimize a model with 1 rows, 23 columns and 23 nonzeros
Model has 121 quadratic objective terms
Modified 23 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 23 columns, 23 nonzeros
Presolved model has 144 quadratic objective terms
Variable types: 0 continuous, 23 integer (23 binary)
Found heuristic solution: objective 58.0000000

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   58.00000    0.00000   100%     -    0s
H    0     0                      50.0000000    0.00000   100%     -    0s
     0     2    3.10663    0   23   50.00000    3.10663  93.8%     -    0s
H    9     9                      49.0000000    4.95919  89.9%   1.8    0s
H  570   341                      45.0000000   14.51598  67.7%   2.1    0s
H  821   432                      44.0000000   14.94854  66.0%   2.1    0s

Explored 16293 nodes (33754 simplex iterations) in 1.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.400000000000e+01, best bound 4.400000000000e+01, gap 0.0%