Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:38 2012

Optimize a model with 1 rows, 37 columns and 37 nonzeros
Model has 83 quadratic objective terms
Modified 37 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 37 columns, 37 nonzeros
Presolved model has 120 quadratic objective terms
Variable types: 0 continuous, 37 integer (37 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 0.000000e+00, 38 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   37   41.00000    0.00000   100%     -    0s
H    0     0                      23.0000000    0.00000   100%     -    0s
H    0     0                      20.0000000    0.00000   100%     -    0s
     0     2    1.77102    0   37   20.00000    1.77102  91.1%     -    0s
H  135   101                      19.0000000    3.83999  79.8%   2.1    0s
H  650   374                      18.0000000    5.76238  68.0%   2.3    0s

Explored 12254 nodes (30178 simplex iterations) in 0.88 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%