Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:40 2012

Optimize a model with 184 rows, 57 columns and 368 nonzeros
Presolve removed 68 rows and 3 columns
Presolve time: 0.00s
Presolved: 116 rows, 54 columns, 263 nonzeros
Variable types: 0 continuous, 54 integer (54 binary)
Found heuristic solution: objective 19.0000000

Root relaxation: objective 2.277778e+01, 92 iterations, 0.00 seconds

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

     0     0   22.77778    0   51   19.00000   22.77778  19.9%     -    0s
H    0     0                      22.0000000   22.77778  3.54%     -    0s

Explored 0 nodes (96 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%