Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:45:51 2012

Optimize a model with 1 rows, 46 columns and 46 nonzeros
Model has 109 quadratic objective terms
Modified 46 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 46 columns, 46 nonzeros
Presolved model has 155 quadratic objective terms
Variable types: 0 continuous, 46 integer (46 binary)
Found heuristic solution: objective 62.0000000

Root relaxation: objective 0.000000e+00, 47 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   46   62.00000    0.00000   100%     -    0s
H    0     0                      45.0000000    0.00000   100%     -    0s
H    0     0                      44.0000000    0.00000   100%     -    0s
H    0     0                      32.0000000    0.00000   100%     -    0s
H    0     0                      26.0000000    0.00000   100%     -    0s
H    0     0                      23.0000000    0.00000   100%     -    0s
     0     2    1.87025    0   46   23.00000    1.87025  91.9%     -    0s
H  563   409                      22.0000000    5.41693  75.4%   2.3    0s
H  722   486                      21.0000000    5.79087  72.4%   2.4    0s
H 3381  1051                      20.0000000   12.71116  36.4%   2.5    0s

Explored 16844 nodes (41814 simplex iterations) in 1.46 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.000000000000e+01, best bound 2.000000000000e+01, gap 0.0%