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

Optimize a model with 137 rows, 76 columns and 274 nonzeros
Presolve removed 60 rows and 27 columns
Presolve time: 0.00s
Presolved: 77 rows, 49 columns, 160 nonzeros
Variable types: 0 continuous, 49 integer (49 binary)
Found heuristic solution: objective 35.0000000

Root relaxation: objective 3.850000e+01, 55 iterations, 0.00 seconds

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

     0     0   38.50000    0   40   35.00000   38.50000  10.0%     -    0s
H    0     0                      38.0000000   38.50000  1.32%     -    0s

Explored 0 nodes (86 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%