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

Optimize a model with 155 rows, 74 columns and 310 nonzeros
Presolve removed 26 rows and 7 columns
Presolve time: 0.00s
Presolved: 129 rows, 67 columns, 263 nonzeros
Variable types: 0 continuous, 67 integer (67 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 3.450000e+01, 78 iterations, 0.00 seconds

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

     0     0   34.50000    0   51   28.00000   34.50000  23.2%     -    0s
H    0     0                      30.0000000   34.50000  15.0%     -    0s
     0     0   33.50000    0   47   30.00000   33.50000  11.7%     -    0s
H    0     0                      32.0000000   33.50000  4.69%     -    0s
H    0     0                      33.0000000   33.50000  1.52%     -    0s

Cutting planes:
  Zero half: 7

Explored 0 nodes (123 simplex iterations) in 0.01 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%