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

Optimize a model with 182 rows, 88 columns and 364 nonzeros
Presolve removed 54 rows and 17 columns
Presolve time: 0.00s
Presolved: 128 rows, 71 columns, 267 nonzeros
Variable types: 0 continuous, 71 integer (71 binary)
Found heuristic solution: objective 38.0000000

Root relaxation: objective 4.200000e+01, 87 iterations, 0.00 seconds

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

     0     0   42.00000    0   58   38.00000   42.00000  10.5%     -    0s
*    0     0               0      41.0000000   41.00000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 20

Explored 0 nodes (138 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.100000000000e+01, best bound 4.100000000000e+01, gap 0.0%