Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:55:50 2012

Optimize a model with 19583 rows, 23562 columns and 81547 nonzeros
Presolve removed 649 rows and 5357 columns
Presolve time: 0.44s
Presolved: 18934 rows, 18205 columns, 74414 nonzeros
Variable types: 0 continuous, 18205 integer (18205 binary)
Found heuristic solution: objective 153.0000000

Root relaxation: objective 3.000000e+00, 12359 iterations, 1.36 seconds
Total elapsed time = 6.83s

    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 (30486 simplex iterations) in 6.93 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%