Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:42 2012

Optimize a model with 1 rows, 20 columns and 20 nonzeros
Model has 100 quadratic objective terms
Modified 20 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 20 columns, 20 nonzeros
Presolved model has 120 quadratic objective terms
Variable types: 0 continuous, 20 integer (20 binary)
Found heuristic solution: objective 60.0000000

Root relaxation: objective 0.000000e+00, 22 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   20   60.00000    0.00000   100%     -    0s
H    0     0                      50.0000000    0.00000   100%     -    0s
H    0     0                      45.0000000    0.00000   100%     -    0s
H    0     0                      44.0000000    0.00000   100%     -    0s
     0     2    3.45118    0   20   44.00000    3.45118  92.2%     -    0s
*   85    68              17      43.0000000    9.91301  76.9%   2.2    0s
*   88    61              16      40.0000000    9.91301  75.2%   2.2    0s
H 1218   380                      39.0000000   19.32710  50.4%   2.1    0s

Explored 9480 nodes (20023 simplex iterations) in 0.66 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.900000000000e+01, best bound 3.900000000000e+01, gap 0.0%