Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:07 2012

Optimize a model with 234 rows, 94 columns and 468 nonzeros
Presolve removed 40 rows and 4 columns
Presolve time: 0.00s
Presolved: 194 rows, 90 columns, 409 nonzeros
Variable types: 0 continuous, 90 integer (90 binary)
Found heuristic solution: objective 34.0000000

Root relaxation: objective 4.175000e+01, 122 iterations, 0.00 seconds

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

     0     0   41.75000    0   85   34.00000   41.75000  22.8%     -    0s
H    0     0                      38.0000000   41.75000  9.87%     -    0s
     0     0   41.00000    0   84   38.00000   41.00000  7.89%     -    0s
H    0     0                      40.0000000   41.00000  2.50%     -    0s
H    0     0                      41.0000000   41.00000   0.0%     -    0s

Cutting planes:
  Gomory: 3
  Zero half: 3

Explored 0 nodes (193 simplex iterations) in 0.01 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%