Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:00 2012

Optimize a model with 99 rows, 60 columns and 198 nonzeros
Presolve removed 38 rows and 20 columns
Presolve time: 0.00s
Presolved: 61 rows, 40 columns, 125 nonzeros
Variable types: 0 continuous, 40 integer (40 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 3.050000e+01, 44 iterations, 0.00 seconds

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

     0     0   30.50000    0   29   27.00000   30.50000  13.0%     -    0s
H    0     0                      29.0000000   30.50000  5.17%     -    0s
H    0     0                      30.0000000   30.50000  1.67%     -    0s

Explored 0 nodes (56 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%