Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:42:18 2012

Optimize a model with 1 rows, 43 columns and 43 nonzeros
Model has 103 quadratic objective terms
Modified 43 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 43 columns, 43 nonzeros
Presolved model has 146 quadratic objective terms
Variable types: 0 continuous, 43 integer (43 binary)
Found heuristic solution: objective 54.0000000

Root relaxation: objective 0.000000e+00, 45 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   54.00000    0.00000   100%     -    0s
H    0     0                      36.0000000    0.00000   100%     -    0s
H    0     0                      32.0000000    0.00000   100%     -    0s
H    0     0                      24.0000000    0.00000   100%     -    0s
     0     2    1.74663    0   43   24.00000    1.74663  92.7%     -    0s
H  643   446                      23.0000000    6.16907  73.2%   2.2    0s
 69696  7781   20.82351   28   26   23.00000   19.74139  14.2%   2.5    5s

Explored 93764 nodes (231369 simplex iterations) in 6.72 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%