Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:57:37 2012

Optimize a model with 1 rows, 49 columns and 49 nonzeros
Model has 106 quadratic objective terms
Modified 48 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 49 columns, 49 nonzeros
Presolved model has 154 quadratic objective terms
Variable types: 0 continuous, 49 integer (49 binary)
Found heuristic solution: objective 52.0000000

Root relaxation: objective 0.000000e+00, 52 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   48   52.00000    0.00000   100%     -    0s
H    0     0                      32.0000000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
H    0     0                      22.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   48   22.00000    0.00000   100%     -    0s
H  126    93                      20.0000000    3.04237  84.8%   2.7    0s
H  142   102                      19.0000000    3.22699  83.0%   2.7    0s
H  681   428                      18.0000000    5.27598  70.7%   2.8    0s

Explored 22983 nodes (61006 simplex iterations) in 2.06 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%