Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:23 2012

Optimize a model with 1 rows, 13 columns and 13 nonzeros
Model has 38 quadratic objective terms
Modified 13 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 13 columns, 13 nonzeros
Presolved model has 51 quadratic objective terms
Variable types: 0 continuous, 13 integer (13 binary)
Found heuristic solution: objective 22.0000000

Root relaxation: objective 0.000000e+00, 15 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   13   22.00000    0.00000   100%     -    0s
H    0     0                      19.0000000    0.00000   100%     -    0s
     0     2    2.12401    0   13   19.00000    2.12401  88.8%     -    0s
H   11    11                      16.0000000    3.59350  77.5%   1.8    0s
H   22    12                      15.0000000    3.75618  75.0%   2.0    0s
H   75    28                      14.0000000    5.93408  57.6%   2.1    0s

Explored 291 nodes (663 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%