Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:44:22 2012

Optimize a model with 1 rows, 45 columns and 45 nonzeros
Model has 105 quadratic objective terms
Modified 45 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 45 columns, 45 nonzeros
Presolved model has 150 quadratic objective terms
Variable types: 0 continuous, 45 integer (45 binary)
Found heuristic solution: objective 60.0000000

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   45   60.00000    0.00000   100%     -    0s
H    0     0                      38.0000000    0.00000   100%     -    0s
H    0     0                      24.0000000    0.00000   100%     -    0s
     0     2    2.25943    0   45   24.00000    2.25943  90.6%     -    0s
H  622   444                      23.0000000    6.02993  73.8%   2.7    0s
H  647   438                      22.0000000    6.02993  72.6%   2.7    0s
H 1273   527                      21.0000000    8.79489  58.1%   2.6    0s

Explored 35881 nodes (92051 simplex iterations) in 3.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%