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

Optimize a model with 135 rows, 79 columns and 270 nonzeros
Presolve removed 81 rows and 38 columns
Presolve time: 0.00s
Presolved: 54 rows, 41 columns, 109 nonzeros
Variable types: 0 continuous, 41 integer (41 binary)
Found heuristic solution: objective 38.0000000

Root relaxation: objective 4.000000e+01, 39 iterations, 0.00 seconds

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

*    0     0               0      40.0000000   40.00000   0.0%     -    0s

Explored 0 nodes (50 simplex iterations) in 0.00 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%