Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:51:08 2012

Optimize a model with 15581 rows, 21756 columns and 67765 nonzeros
Presolve removed 620 rows and 4412 columns
Presolve time: 0.32s
Presolved: 14961 rows, 17344 columns, 61681 nonzeros
Variable types: 0 continuous, 17344 integer (17344 binary)
Found heuristic solution: objective 147.0000000

Root relaxation: objective 3.000000e+00, 12069 iterations, 0.94 seconds
Total elapsed time = 5.46s

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

*    0     0               0       3.0000000    3.00000   0.0%     -    6s

Explored 0 nodes (32590 simplex iterations) in 6.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%