Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:22 2012

Optimize a model with 1 rows, 19 columns and 19 nonzeros
Model has 83 quadratic objective terms
Modified 19 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 19 columns, 19 nonzeros
Presolved model has 102 quadratic objective terms
Variable types: 0 continuous, 19 integer (19 binary)
Found heuristic solution: objective 49.0000000

Root relaxation: objective 0.000000e+00, 21 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   19   49.00000    0.00000   100%     -    0s
H    0     0                      39.0000000    0.00000   100%     -    0s
H    0     0                      37.0000000    0.00000   100%     -    0s
H    0     0                      34.0000000    0.00000   100%     -    0s
H    0     0                      33.0000000    0.00000   100%     -    0s
     0     2    2.11541    0   19   33.00000    2.11541  93.6%     -    0s
H   11    11                      32.0000000    3.85558  88.0%   1.8    0s
H  799   308                      31.0000000   13.49907  56.5%   2.1    0s

Explored 4565 nodes (9371 simplex iterations) in 0.22 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.100000000000e+01, best bound 3.100000000000e+01, gap 0.0%