Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:03 2012

Optimize a model with 145 rows, 80 columns and 290 nonzeros
Presolve removed 85 rows and 35 columns
Presolve time: 0.00s
Presolved: 60 rows, 45 columns, 123 nonzeros
Variable types: 0 continuous, 45 integer (45 binary)
Found heuristic solution: objective 37.0000000

Root relaxation: objective 3.866667e+01, 53 iterations, 0.00 seconds

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

     0     0   38.66667    0   44   37.00000   38.66667  4.50%     -    0s
H    0     0                      38.0000000   38.66667  1.75%     -    0s

Explored 0 nodes (58 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%