Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:20:55 2012

Optimize a model with 1 rows, 28 columns and 28 nonzeros
Model has 188 quadratic objective terms
Modified 28 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 28 columns, 28 nonzeros
Presolved model has 216 quadratic objective terms
Variable types: 0 continuous, 28 integer (28 binary)
Found heuristic solution: objective 95.0000000

Root relaxation: objective 0.000000e+00, 30 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   28   95.00000    0.00000   100%     -    0s
H    0     0                      89.0000000    0.00000   100%     -    0s
H    0     0                      77.0000000    0.00000   100%     -    0s
H    0     0                      76.0000000    0.00000   100%     -    0s
     0     2    4.98080    0   28   76.00000    4.98080  93.4%     -    0s
H  741   495                      72.0000000   18.08993  74.9%   2.1    0s
 74784 21798   53.16619   28   15   72.00000   53.16619  26.2%   2.0    5s
 149768 31920   62.33113   30   13   72.00000   57.80107  19.7%   2.0   10s
 221063 34202   70.21139   33   10   72.00000   60.76798  15.6%   2.0   15s
 294007 28086   65.51910   32   11   72.00000   63.42995  11.9%   2.0   20s
 367533  9673   67.65783   32   11   72.00000   67.65783  6.03%   2.0   25s

Explored 383899 nodes (784687 simplex iterations) in 26.21 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.200000000000e+01, best bound 7.200000000000e+01, gap 0.0%