Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:32:34 2012

Optimize a model with 1 rows, 52 columns and 52 nonzeros
Model has 123 quadratic objective terms
Modified 51 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 52 columns, 52 nonzeros
Presolved model has 174 quadratic objective terms
Variable types: 0 continuous, 52 integer (52 binary)
Found heuristic solution: objective 57.0000000

Root relaxation: objective 0.000000e+00, 55 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   51   57.00000    0.00000   100%     -    0s
H    0     0                      41.0000000    0.00000   100%     -    0s
H    0     0                      30.0000000    0.00000   100%     -    0s
H    0     0                      29.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   51   29.00000    0.00000   100%     -    0s
H  632   458                      26.0000000    4.91581  81.1%   2.6    0s
H  650   448                      25.0000000    4.91581  80.3%   2.7    0s
H  842   483                      24.0000000    6.12633  74.5%   2.8    0s
 55964 14593   21.24104   26   33   24.00000   18.32711  23.6%   2.6    5s
 112429 15725   22.95345   26   32   24.00000   20.05929  16.4%   2.5   10s
 169468  2957   22.27310   25   34   24.00000   22.23970  7.33%   2.5   15s

Explored 173245 nodes (440135 simplex iterations) in 15.40 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%