Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:42 2012

Optimize a model with 1 rows, 20 columns and 20 nonzeros
Model has 105 quadratic objective terms
Modified 20 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 20 columns, 20 nonzeros
Presolved model has 125 quadratic objective terms
Variable types: 0 continuous, 20 integer (20 binary)
Found heuristic solution: objective 56.0000000

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   56.00000    0.00000   100%     -    0s
H    0     0                      53.0000000    0.00000   100%     -    0s
H    0     0                      47.0000000    0.00000   100%     -    0s
     0     2    3.50226    0   20   47.00000    3.50226  92.5%     -    0s
H  110    87                      46.0000000    9.47243  79.4%   2.0    0s
H  246   178                      42.0000000   10.43282  75.2%   2.0    0s
H 1382   355                      41.0000000   21.57023  47.4%   2.1    0s

Explored 9339 nodes (19135 simplex iterations) in 0.56 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.100000000000e+01, best bound 4.100000000000e+01, gap 0.0%