Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:48:12 2012

Optimize a model with 1 rows, 47 columns and 47 nonzeros
Model has 110 quadratic objective terms
Modified 47 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 47 columns, 47 nonzeros
Presolved model has 157 quadratic objective terms
Variable types: 0 continuous, 47 integer (47 binary)
Found heuristic solution: objective 61.0000000

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   47   61.00000    0.00000   100%     -    0s
H    0     0                      54.0000000    0.00000   100%     -    0s
H    0     0                      52.0000000    0.00000   100%     -    0s
H    0     0                      32.0000000    0.00000   100%     -    0s
H    0     0                      28.0000000    0.00000   100%     -    0s
     0     2    1.39778    0   47   28.00000    1.39778  95.0%     -    0s
H  135   111                      26.0000000    4.05819  84.4%   2.3    0s
H  459   338                      24.0000000    4.84785  79.8%   2.4    0s
 63849 15362   22.82005   38   15   24.00000   18.90466  21.2%   2.7    5s
 127227 13159   20.96616   29   27   24.00000   20.69708  13.8%   2.7   10s

Explored 165916 nodes (442287 simplex iterations) in 13.12 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%