Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:39 2012

Optimize a model with 141 rows, 54 columns and 282 nonzeros
Presolve removed 29 rows and 0 columns
Presolve time: 0.00s
Presolved: 112 rows, 54 columns, 240 nonzeros
Variable types: 0 continuous, 54 integer (54 binary)
Found heuristic solution: objective 21.0000000

Root relaxation: objective 2.468750e+01, 81 iterations, 0.00 seconds

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

     0     0   24.68750    0   50   21.00000   24.68750  17.6%     -    0s
H    0     0                      24.0000000   24.68750  2.86%     -    0s

Explored 0 nodes (90 simplex iterations) in 0.00 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%