Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:06 2012

Optimize a model with 207 rows, 92 columns and 414 nonzeros
Presolve removed 36 rows and 8 columns
Presolve time: 0.00s
Presolved: 171 rows, 84 columns, 354 nonzeros
Variable types: 0 continuous, 84 integer (84 binary)
Found heuristic solution: objective 38.0000000

Root relaxation: objective 4.250000e+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   42.50000    0   55   38.00000   42.50000  11.8%     -    0s
     0     0   41.71429    0   76   38.00000   41.71429  9.77%     -    0s
H    0     0                      40.0000000   41.71429  4.29%     -    0s
H    0     0                      41.0000000   41.71429  1.74%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 6

Explored 0 nodes (194 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%