Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:05 2012

Optimize a model with 193 rows, 86 columns and 386 nonzeros
Presolve removed 59 rows and 17 columns
Presolve time: 0.00s
Presolved: 134 rows, 69 columns, 283 nonzeros
Variable types: 0 continuous, 69 integer (69 binary)
Found heuristic solution: objective 37.0000000

Root relaxation: objective 4.060000e+01, 98 iterations, 0.00 seconds

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

     0     0   40.60000    0   68   37.00000   40.60000  9.73%     -    0s
H    0     0                      38.0000000   40.60000  6.84%     -    0s
     0     0   39.75000    0   63   38.00000   39.75000  4.61%     -    0s
     0     0   39.50000    0   65   38.00000   39.50000  3.95%     -    0s
H    0     0                      39.0000000   39.50000  1.28%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 10

Explored 0 nodes (190 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.900000000000e+01, best bound 3.900000000000e+01, gap 0.0%