Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:45:34 2012

Optimize a model with 1 rows, 46 columns and 46 nonzeros
Model has 97 quadratic objective terms
Modified 45 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 46 columns, 46 nonzeros
Presolved model has 142 quadratic objective terms
Variable types: 0 continuous, 46 integer (46 binary)
Found heuristic solution: objective 55.0000000

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   45   55.00000    0.00000   100%     -    0s
H    0     0                      37.0000000    0.00000   100%     -    0s
H    0     0                      28.0000000    0.00000   100%     -    0s
H    0     0                      26.0000000    0.00000   100%     -    0s
H    0     0                      23.0000000    0.00000   100%     -    0s
H    0     0                      19.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   45   19.00000    0.00000   100%     -    0s
H  644   406                      18.0000000    4.33370  75.9%   2.9    0s

Explored 26524 nodes (71331 simplex iterations) in 2.18 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%