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

Optimize a model with 226 rows, 95 columns and 452 nonzeros
Presolve removed 71 rows and 17 columns
Presolve time: 0.00s
Presolved: 155 rows, 78 columns, 323 nonzeros
Variable types: 0 continuous, 78 integer (78 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 4.400000e+01, 97 iterations, 0.00 seconds

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

     0     0   44.00000    0   60   41.00000   44.00000  7.32%     -    0s
     0     0   42.75000    0   73   41.00000   42.75000  4.27%     -    0s
     0     0   42.68421    0   74   41.00000   42.68421  4.11%     -    0s
H    0     0                      42.0000000   42.68421  1.63%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 8

Explored 0 nodes (171 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.200000000000e+01, best bound 4.200000000000e+01, gap 0.0%