Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:02 2012

Optimize a model with 176 rows, 76 columns and 352 nonzeros
Presolve removed 38 rows and 7 columns
Presolve time: 0.00s
Presolved: 138 rows, 69 columns, 288 nonzeros
Variable types: 0 continuous, 69 integer (69 binary)
Found heuristic solution: objective 30.0000000

Root relaxation: objective 3.433333e+01, 91 iterations, 0.00 seconds

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

     0     0   34.33333    0   56   30.00000   34.33333  14.4%     -    0s
H    0     0                      33.0000000   34.33333  4.04%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 2

Explored 0 nodes (114 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.300000000000e+01, best bound 3.400000000000e+01, gap 3.0303%