Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:53:39 2012

Optimize a model with 9197 rows, 5402 columns and 32629 nonzeros
Presolve removed 1100 rows and 221 columns
Presolve time: 0.39s
Presolved: 8097 rows, 5181 columns, 29487 nonzeros
Variable types: 0 continuous, 5181 integer (5181 binary)
Found heuristic solution: objective 72.0000000

Root relaxation: objective 4.000000e+00, 6145 iterations, 0.57 seconds

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

*    0     0               0       4.0000000    4.00000   0.0%     -    1s

Explored 0 nodes (8991 simplex iterations) in 1.34 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%