Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:21:18 2012

Optimize a model with 1 rows, 51 columns and 51 nonzeros
Model has 127 quadratic objective terms
Modified 50 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 51 columns, 51 nonzeros
Presolved model has 177 quadratic objective terms
Variable types: 0 continuous, 51 integer (51 binary)
Found heuristic solution: objective 70.0000000

Root relaxation: objective 0.000000e+00, 54 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   50   70.00000    0.00000   100%     -    0s
H    0     0                      55.0000000    0.00000   100%     -    0s
H    0     0                      43.0000000    0.00000   100%     -    0s
H    0     0                      42.0000000    0.00000   100%     -    0s
H    0     0                      30.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   50   30.00000    0.00000   100%     -    0s
H  632   455                      29.0000000    6.79807  76.6%   2.8    0s
H  644   441                      28.0000000    6.79807  75.7%   2.8    0s
H  709   444                      27.0000000    6.79807  74.8%   2.8    0s
 57588 12811   25.17495   25   35   27.00000   21.94215  18.7%   2.6    5s
 115739  4192   25.54570   29   28   27.00000   24.88715  7.83%   2.6   10s

Explored 122409 nodes (316041 simplex iterations) in 10.62 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.700000000000e+01, best bound 2.700000000000e+01, gap 0.0%