Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:02 2012

Optimize a model with 156 rows, 75 columns and 312 nonzeros
Presolve removed 27 rows and 4 columns
Presolve time: 0.00s
Presolved: 129 rows, 71 columns, 266 nonzeros
Variable types: 0 continuous, 71 integer (71 binary)
Found heuristic solution: objective 29.0000000

Root relaxation: objective 3.475000e+01, 81 iterations, 0.00 seconds

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

     0     0   34.75000    0   53   29.00000   34.75000  19.8%     -    0s
H    0     0                      33.0000000   34.75000  5.30%     -    0s
H    0     0                      34.0000000   34.75000  2.21%     -    0s

Explored 0 nodes (106 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%