Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:09:35 2012

Optimize a model with 1 rows, 50 columns and 50 nonzeros
Model has 125 quadratic objective terms
Modified 48 Q diagonals
Presolve removed 0 rows and 1 columns
Presolve time: 0.01s
Presolved: 1 rows, 49 columns, 49 nonzeros
Presolved model has 173 quadratic objective terms
Variable types: 0 continuous, 49 integer (48 binary)
Found heuristic solution: objective 62.0000000

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   62.00000    0.00000   100%     -    0s
H    0     0                      52.0000000    0.00000   100%     -    0s
H    0     0                      47.0000000    0.00000   100%     -    0s
H    0     0                      36.0000000    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   83    74                      32.0000000    3.87728  87.9%   2.7    0s
H  119    98                      31.0000000    5.34811  82.7%   2.7    0s
H  120    96                      30.0000000    5.34811  82.2%   2.7    0s
H  270   219                      29.0000000    6.63230  77.1%   2.6    0s
H  604   412                      28.0000000    6.76554  75.8%   2.6    0s
H  634   411                      27.0000000    6.76554  74.9%   2.7    0s
H  647   392                      26.0000000    6.76554  74.0%   2.7    0s
 55330  7670     cutoff   31        26.00000   21.62989  16.8%   2.5    5s

Explored 84589 nodes (206397 simplex iterations) in 7.61 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.600000000000e+01, best bound 2.600000000000e+01, gap 0.0%