Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:01 2012

Optimize a model with 121 rows, 65 columns and 242 nonzeros
Presolve removed 64 rows and 23 columns
Presolve time: 0.00s
Presolved: 57 rows, 42 columns, 116 nonzeros
Variable types: 0 continuous, 42 integer (42 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 3.050000e+01, 51 iterations, 0.00 seconds

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

     0     0   30.50000    0   35   28.00000   30.50000  8.93%     -    0s
*    0     0               0      30.0000000   30.00000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 7

Explored 0 nodes (61 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%