Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:03 2012

Optimize a model with 186 rows, 78 columns and 372 nonzeros
Presolve removed 37 rows and 4 columns
Presolve time: 0.00s
Presolved: 149 rows, 74 columns, 317 nonzeros
Variable types: 0 continuous, 74 integer (74 binary)
Found heuristic solution: objective 30.0000000

Root relaxation: objective 3.550000e+01, 106 iterations, 0.00 seconds

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

     0     0   35.50000    0   65   30.00000   35.50000  18.3%     -    0s
     0     0   34.61538    0   72   30.00000   34.61538  15.4%     -    0s
H    0     0                      31.0000000   34.61538  11.7%     -    0s
H    0     0                      32.0000000   34.61538  8.17%     -    0s
     0     0   34.44444    0   73   32.00000   34.44444  7.64%     -    0s
H    0     0                      33.0000000   34.44444  4.38%     -    0s
     0     0   34.25000    0   73   33.00000   34.25000  3.79%     -    0s
     0     0   34.11111    0   72   33.00000   34.11111  3.37%     -    0s
     0     0   34.00000    0   49   33.00000   34.00000  3.03%     -    0s
     0     0     cutoff    0        33.00000   33.99997  3.03%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 46

Explored 0 nodes (266 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%