Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:05 2012

Optimize a model with 1 rows, 18 columns and 18 nonzeros
Model has 73 quadratic objective terms
Modified 18 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 18 columns, 18 nonzeros
Presolved model has 91 quadratic objective terms
Variable types: 0 continuous, 18 integer (18 binary)
Found heuristic solution: objective 33.0000000

Root relaxation: objective 0.000000e+00, 20 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   18   33.00000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
     0     2    2.92936    0   18   31.00000    2.92936  90.6%     -    0s
H   20    20                      29.0000000    5.27877  81.8%   1.9    0s

Explored 4206 nodes (9127 simplex iterations) in 0.15 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.900000000000e+01, best bound 2.900000000000e+01, gap 0.0%