Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:04 2012

Optimize a model with 180 rows, 85 columns and 360 nonzeros
Presolve removed 54 rows and 16 columns
Presolve time: 0.00s
Presolved: 126 rows, 69 columns, 262 nonzeros
Variable types: 0 continuous, 69 integer (69 binary)
Found heuristic solution: objective 39.0000000

Root relaxation: objective 4.050000e+01, 85 iterations, 0.00 seconds

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

     0     0   40.50000    0   49   39.00000   40.50000  3.85%     -    0s
H    0     0                      40.0000000   40.50000  1.25%     -    0s

Explored 0 nodes (134 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+01, best bound 4.000000000000e+01, gap 0.0%