Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:08:52 2012

Optimize a model with 1 rows, 50 columns and 50 nonzeros
Model has 118 quadratic objective terms
Modified 50 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 50 columns, 50 nonzeros
Presolved model has 168 quadratic objective terms
Variable types: 0 continuous, 50 integer (50 binary)
Found heuristic solution: objective 55.0000000

Root relaxation: objective 0.000000e+00, 52 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   50   55.00000    0.00000   100%     -    0s
H    0     0                      42.0000000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
H    0     0                      28.0000000    0.00000   100%     -    0s
     0     2    1.73779    0   50   28.00000    1.73779  93.8%     -    0s
H  541   395                      27.0000000    5.23305  80.6%   2.6    0s
H  790   530                      26.0000000    5.66642  78.2%   2.7    0s
H 1814   766                      25.0000000   10.24996  59.0%   2.6    0s
 59043 15389   19.49213   25   37   25.00000   19.49213  22.0%   2.7    5s
 118403 15000   22.54721   27   32   25.00000   21.34065  14.6%   2.7   10s

Explored 168909 nodes (452983 simplex iterations) in 14.29 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.500000000000e+01, best bound 2.500000000000e+01, gap 0.0%