Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:59:25 2012

Optimize a model with 1 rows, 49 columns and 49 nonzeros
Model has 132 quadratic objective terms
Modified 48 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 49 columns, 49 nonzeros
Presolved model has 180 quadratic objective terms
Variable types: 0 continuous, 49 integer (49 binary)
Found heuristic solution: objective 59.0000000

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   59.00000    0.00000   100%     -    0s
H    0     0                      43.0000000    0.00000   100%     -    0s
H    0     0                      41.0000000    0.00000   100%     -    0s
H    0     0                      37.0000000    0.00000   100%     -    0s
H    0     0                      35.0000000    0.00000   100%     -    0s
H    0     0                      33.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   48   33.00000    0.00000   100%     -    0s
H  162   123                      32.0000000    5.34666  83.3%   2.9    0s
H  632   439                      31.0000000    6.85634  77.9%   2.8    0s
H 1118   573                      30.0000000    9.04142  69.9%   2.8    0s
 56341 19212   28.54446   30   30   30.00000   21.87945  27.1%   2.7    5s
 113468 28617   28.57652   37   22   30.00000   23.71823  20.9%   2.7   10s
 170289 31426   26.85163   28   32   30.00000   24.85035  17.2%   2.7   15s
 228140 28338   28.20885   28   31   30.00000   25.74124  14.2%   2.7   20s
 285570 19173   26.70961   28   32   30.00000   26.70961  11.0%   2.7   25s

Explored 333278 nodes (885506 simplex iterations) in 29.25 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%