Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:24:43 2012

Optimize a model with 23084 rows, 29412 columns and 97810 nonzeros
Presolve removed 378 rows and 5816 columns
Presolve time: 0.57s
Presolved: 22706 rows, 23596 columns, 90875 nonzeros
Variable types: 0 continuous, 23596 integer (23596 binary)
Found heuristic solution: objective 171.0000000

Root relaxation: objective 3.000000e+00, 18496 iterations, 2.34 seconds
Total elapsed time = 8.07s

    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%     -    9s

Explored 0 nodes (44914 simplex iterations) in 9.13 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%