Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:46:11 2012

Optimize a model with 1 rows, 46 columns and 46 nonzeros
Model has 117 quadratic objective terms
Modified 46 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 46 columns, 46 nonzeros
Presolved model has 163 quadratic objective terms
Variable types: 0 continuous, 46 integer (46 binary)
Found heuristic solution: objective 52.0000000

Root relaxation: objective 0.000000e+00, 48 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   46   52.00000    0.00000   100%     -    0s
H    0     0                      49.0000000    0.00000   100%     -    0s
H    0     0                      45.0000000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
     0     2    2.12190    0   46   31.00000    2.12190  93.2%     -    0s
H   18    18                      29.0000000    3.14623  89.2%   2.1    0s
H  460   366                      28.0000000    5.02931  82.0%   2.4    0s
H 1119   521                      27.0000000    9.82856  63.6%   2.5    0s
 64727 16190   25.49094   34   25   27.00000   21.73400  19.5%   2.5    5s
 129762 13745   23.67940   30   26   27.00000   23.67521  12.3%   2.5   10s

Explored 170169 nodes (418427 simplex iterations) in 13.17 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.700000000000e+01, best bound 2.700000000000e+01, gap 0.0%