Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:06 2012

Optimize a model with 1 rows, 21 columns and 21 nonzeros
Model has 114 quadratic objective terms
Modified 21 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 21 columns, 21 nonzeros
Presolved model has 135 quadratic objective terms
Variable types: 0 continuous, 21 integer (21 binary)
Found heuristic solution: objective 64.0000000

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   64.00000    0.00000   100%     -    0s
H    0     0                      59.0000000    0.00000   100%     -    0s
H    0     0                      58.0000000    0.00000   100%     -    0s
H    0     0                      52.0000000    0.00000   100%     -    0s
H    0     0                      50.0000000    0.00000   100%     -    0s
     0     2    2.38633    0   21   50.00000    2.38633  95.2%     -    0s
*  302   233              13      49.0000000   11.94032  75.6%   2.1    0s
*  310   222              14      48.0000000   11.94032  75.1%   2.1    0s
H 1991   639                      47.0000000   25.50653  45.7%   2.1    0s
H 3298   987                      46.0000000   29.11074  36.7%   2.1    0s

Explored 22102 nodes (45620 simplex iterations) in 1.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.600000000000e+01, best bound 4.600000000000e+01, gap 0.0%