Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:31:55 2012

Optimize a model with 26 rows, 29 columns and 52 nonzeros
Presolve removed 19 rows and 23 columns
Presolve time: 0.00s
Presolved: 7 rows, 6 columns, 14 nonzeros
Variable types: 0 continuous, 6 integer (6 binary)
Found heuristic solution: objective 18.0000000

Root relaxation: cutoff, 4 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        18.00000   18.99998  5.56%     -    0s

Explored 0 nodes (4 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%