Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:48:02 2012

Optimize a model with 1 rows, 47 columns and 47 nonzeros
Model has 105 quadratic objective terms
Modified 47 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 47 columns, 47 nonzeros
Presolved model has 152 quadratic objective terms
Variable types: 0 continuous, 47 integer (47 binary)
Found heuristic solution: objective 61.0000000

Root relaxation: objective 0.000000e+00, 49 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   47   61.00000    0.00000   100%     -    0s
H    0     0                      48.0000000    0.00000   100%     -    0s
H    0     0                      40.0000000    0.00000   100%     -    0s
H    0     0                      36.0000000    0.00000   100%     -    0s
H    0     0                      24.0000000    0.00000   100%     -    0s
     0     2    1.64806    0   47   24.00000    1.64806  93.1%     -    0s
H   27    27                      23.0000000    2.00888  91.3%   2.1    0s
H  625   450                      22.0000000    4.32200  80.4%   2.5    0s
 64683  7942   18.83011   24   29   22.00000   18.82933  14.4%   2.7    5s

Explored 88257 nodes (240036 simplex iterations) in 6.84 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%