Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:48:09 2012

Optimize a model with 1 rows, 47 columns and 47 nonzeros
Model has 97 quadratic objective terms
Modified 47 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 47 columns, 47 nonzeros
Presolved model has 144 quadratic objective terms
Variable types: 0 continuous, 47 integer (47 binary)
Found heuristic solution: objective 42.0000000

Root relaxation: objective 0.000000e+00, 49 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   47   42.00000    0.00000   100%     -    0s
H    0     0                      38.0000000    0.00000   100%     -    0s
H    0     0                      28.0000000    0.00000   100%     -    0s
H    0     0                      27.0000000    0.00000   100%     -    0s
     0     2    1.52194    0   47   27.00000    1.52194  94.4%     -    0s
H    8     8                      25.0000000    2.45069  90.2%   1.8    0s
H  110    82                      24.0000000    3.44490  85.6%   2.8    0s
H  127    98                      23.0000000    3.44490  85.0%   2.8    0s
H  131    98                      22.0000000    3.44490  84.3%   2.8    0s
H  153   108                      21.0000000    3.46765  83.5%   2.7    0s
H  432   326                      20.0000000    3.80660  81.0%   2.9    0s
H  684   452                      19.0000000    4.45600  76.5%   2.9    0s

Explored 37959 nodes (106752 simplex iterations) in 2.94 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%