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

Optimize a model with 84 rows, 39 columns and 168 nonzeros
Presolve removed 47 rows and 12 columns
Presolve time: 0.00s
Presolved: 37 rows, 27 columns, 80 nonzeros
Variable types: 0 continuous, 27 integer (27 binary)
Found heuristic solution: objective 17.0000000

Root relaxation: cutoff, 23 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        17.00000   17.99998  5.88%     -    0s

Explored 0 nodes (23 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%