Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:05 2012

Optimize a model with 1 rows, 21 columns and 21 nonzeros
Model has 99 quadratic objective terms
Modified 21 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 21 columns, 21 nonzeros
Presolved model has 120 quadratic objective terms
Variable types: 0 continuous, 21 integer (21 binary)
Found heuristic solution: objective 51.0000000

Root relaxation: objective 0.000000e+00, 23 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   21   51.00000    0.00000   100%     -    0s
H    0     0                      50.0000000    0.00000   100%     -    0s
H    0     0                      47.0000000    0.00000   100%     -    0s
H    0     0                      43.0000000    0.00000   100%     -    0s
     0     2    2.85922    0   21   43.00000    2.85922  93.4%     -    0s
H   79    53                      42.0000000    7.65376  81.8%   2.0    0s
H   82    56                      41.0000000    7.65376  81.3%   2.0    0s
H  106    73                      40.0000000    8.33634  79.2%   2.0    0s
H  934   408                      39.0000000   15.54059  60.2%   2.1    0s
H 1541   399                      38.0000000   20.58293  45.8%   2.1    0s

Explored 11320 nodes (23253 simplex iterations) in 0.52 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%