Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:21 2012

Optimize a model with 1 rows, 19 columns and 19 nonzeros
Model has 80 quadratic objective terms
Modified 19 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 19 columns, 19 nonzeros
Presolved model has 99 quadratic objective terms
Variable types: 0 continuous, 19 integer (19 binary)
Found heuristic solution: objective 40.0000000

Root relaxation: objective 0.000000e+00, 20 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   40.00000    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                      36.0000000    0.00000   100%     -    0s
H    0     0                      32.0000000    0.00000   100%     -    0s
     0     2    2.11618    0   19   32.00000    2.11618  93.4%     -    0s
H  217   136                      31.0000000    9.17422  70.4%   2.0    0s
H  644   253                      30.0000000   14.65827  51.1%   2.1    0s

Explored 3590 nodes (7402 simplex iterations) in 0.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%