Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:20 2012

Optimize a model with 1 rows, 40 columns and 40 nonzeros
Model has 87 quadratic objective terms
Modified 40 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 40 columns, 40 nonzeros
Presolved model has 127 quadratic objective terms
Variable types: 0 continuous, 40 integer (40 binary)
Found heuristic solution: objective 47.0000000

Root relaxation: objective 0.000000e+00, 42 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   40   47.00000    0.00000   100%     -    0s
H    0     0                      32.0000000    0.00000   100%     -    0s
H    0     0                      28.0000000    0.00000   100%     -    0s
H    0     0                      27.0000000    0.00000   100%     -    0s
H    0     0                      26.0000000    0.00000   100%     -    0s
H    0     0                      24.0000000    0.00000   100%     -    0s
H    0     0                      23.0000000    0.00000   100%     -    0s
     0     2    1.31008    0   40   23.00000    1.31008  94.3%     -    0s
H    8     8                      22.0000000    2.20886  90.0%   1.8    0s
H   15    15                      19.0000000    2.20886  88.4%   2.0    0s

Explored 49671 nodes (125720 simplex iterations) in 3.49 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%