Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:48 2012

Optimize a model with 1 rows, 41 columns and 41 nonzeros
Model has 91 quadratic objective terms
Modified 41 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 41 columns, 41 nonzeros
Presolved model has 132 quadratic objective terms
Variable types: 0 continuous, 41 integer (41 binary)
Found heuristic solution: objective 46.0000000

Root relaxation: objective 0.000000e+00, 43 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   41   46.00000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
H    0     0                      23.0000000    0.00000   100%     -    0s
     0     2    1.31458    0   41   23.00000    1.31458  94.3%     -    0s
H    9     9                      21.0000000    2.60470  87.6%   1.8    0s
H   14    14                      20.0000000    2.60470  87.0%   1.9    0s
H 1249   524                      19.0000000    7.83614  58.8%   2.6    0s

Explored 30440 nodes (81614 simplex iterations) in 2.20 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.900000000000e+01, best bound 1.900000000000e+01, gap 0.0%