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

Optimize a model with 177 rows, 87 columns and 354 nonzeros
Presolve removed 45 rows and 12 columns
Presolve time: 0.00s
Presolved: 132 rows, 75 columns, 274 nonzeros
Variable types: 0 continuous, 75 integer (75 binary)
Found heuristic solution: objective 38.0000000

Root relaxation: objective 4.200000e+01, 94 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   62   38.00000   42.00000  10.5%     -    0s
H    0     0                      41.0000000   42.00000  2.44%     -    0s

Cutting planes:
  Gomory: 1

Explored 0 nodes (150 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 4.200000000000e+01, gap 2.4390%