Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:43 2012

Optimize a model with 1 rows, 20 columns and 20 nonzeros
Model has 101 quadratic objective terms
Modified 20 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 20 columns, 20 nonzeros
Presolved model has 121 quadratic objective terms
Variable types: 0 continuous, 20 integer (20 binary)
Found heuristic solution: objective 55.0000000

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   20   55.00000    0.00000   100%     -    0s
H    0     0                      50.0000000    0.00000   100%     -    0s
H    0     0                      44.0000000    0.00000   100%     -    0s
     0     2    3.47244    0   20   44.00000    3.47244  92.1%     -    0s
*  204   159              16      42.0000000    8.50058  79.8%   2.1    0s
H  500   283                      41.0000000   13.67075  66.7%   2.0    0s
H  608   314                      40.0000000   15.41200  61.5%   2.1    0s
H  677   324                      38.0000000   15.41200  59.4%   2.1    0s

Explored 8451 nodes (17161 simplex iterations) in 0.39 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%