Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:37 2012

Optimize a model with 82 rows, 44 columns and 164 nonzeros
Presolve removed 26 rows and 8 columns
Presolve time: 0.00s
Presolved: 56 rows, 36 columns, 117 nonzeros
Variable types: 0 continuous, 36 integer (36 binary)
Found heuristic solution: objective 21.0000000

Root relaxation: cutoff, 40 iterations, 0.00 seconds

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

     0     0     cutoff    0        21.00000   21.99998  4.76%     -    0s

Explored 0 nodes (40 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%