Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:38 2012

Optimize a model with 106 rows, 46 columns and 212 nonzeros
Presolve removed 37 rows and 9 columns
Presolve time: 0.00s
Presolved: 69 rows, 37 columns, 145 nonzeros
Variable types: 0 continuous, 37 integer (37 binary)
Found heuristic solution: objective 19.0000000

Root relaxation: objective 2.185714e+01, 48 iterations, 0.00 seconds

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

     0     0   21.85714    0   34   19.00000   21.85714  15.0%     -    0s
H    0     0                      21.0000000   21.85714  4.08%     -    0s

Explored 0 nodes (62 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%