Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:10 2012

Optimize a model with 250 rows, 102 columns and 500 nonzeros
Presolve removed 60 rows and 11 columns
Presolve time: 0.00s
Presolved: 190 rows, 91 columns, 396 nonzeros
Variable types: 0 continuous, 91 integer (91 binary)
Found heuristic solution: objective 47.0000000

Root relaxation: objective 4.860000e+01, 135 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   48.60000    0   79   47.00000   48.60000  3.40%     -    0s
H    0     0                      48.0000000   48.60000  1.25%     -    0s

Explored 0 nodes (160 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.800000000000e+01, best bound 4.800000000000e+01, gap 0.0%