Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:00 2012

Optimize a model with 104 rows, 60 columns and 208 nonzeros
Presolve removed 41 rows and 17 columns
Presolve time: 0.00s
Presolved: 63 rows, 43 columns, 128 nonzeros
Variable types: 0 continuous, 43 integer (43 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 2.966667e+01, 55 iterations, 0.00 seconds

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

     0     0   29.66667    0   43   27.00000   29.66667  9.88%     -    0s
H    0     0                      28.0000000   29.66667  5.95%     -    0s
     0     0   29.00000    0   40   28.00000   29.00000  3.57%     -    0s
     0     0   29.00000    0   40   28.00000   29.00000  3.57%     -    0s
     0     0   29.00000    0   31   28.00000   29.00000  3.57%     -    0s
H    0     0                      29.0000000   29.00000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 2

Explored 0 nodes (113 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.900000000000e+01, best bound 2.900000000000e+01, gap 0.0%