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

Optimize a model with 200 rows, 85 columns and 400 nonzeros
Presolve removed 39 rows and 4 columns
Presolve time: 0.00s
Presolved: 161 rows, 81 columns, 339 nonzeros
Variable types: 0 continuous, 81 integer (81 binary)
Found heuristic solution: objective 33.0000000

Root relaxation: objective 3.825000e+01, 107 iterations, 0.00 seconds

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

     0     0   38.25000    0   62   33.00000   38.25000  15.9%     -    0s
H    0     0                      36.0000000   38.25000  6.25%     -    0s
     0     0   37.75000    0   76   36.00000   37.75000  4.86%     -    0s
H    0     0                      37.0000000   37.75000  2.03%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 3

Explored 0 nodes (180 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%