Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:41:29 2012

Optimize a model with 1 rows, 42 columns and 42 nonzeros
Model has 93 quadratic objective terms
Modified 42 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 42 columns, 42 nonzeros
Presolved model has 135 quadratic objective terms
Variable types: 0 continuous, 42 integer (42 binary)
Found heuristic solution: objective 42.0000000

Root relaxation: objective 0.000000e+00, 44 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   42   42.00000    0.00000   100%     -    0s
H    0     0                      38.0000000    0.00000   100%     -    0s
H    0     0                      28.0000000    0.00000   100%     -    0s
H    0     0                      27.0000000    0.00000   100%     -    0s
     0     2    0.46548    0   42   27.00000    0.46548  98.3%     -    0s
H   16    16                      26.0000000    1.27793  95.1%   2.2    0s
H  135   111                      24.0000000    1.81163  92.5%   2.5    0s
H  604   431                      23.0000000    3.55840  84.5%   2.5    0s
H  628   425                      22.0000000    3.55840  83.8%   2.6    0s
H  772   456                      21.0000000    4.94565  76.4%   2.6    0s
 71621 12083   19.76810   30   21   21.00000   17.17110  18.2%   2.6    5s

Explored 121640 nodes (316575 simplex iterations) in 8.45 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%