Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:34:45 2012

Optimize a model with 28013 rows, 30450 columns and 113620 nonzeros
Presolve removed 377 rows and 4700 columns
Presolve time: 0.66s
Presolved: 27636 rows, 25750 columns, 107734 nonzeros
Variable types: 0 continuous, 25750 integer (25750 binary)
Found heuristic solution: objective 174.0000000

Root relaxation: objective 3.000000e+00, 20269 iterations, 2.77 seconds
Total elapsed time = 13.73s

    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%     -   15s

Explored 0 nodes (60239 simplex iterations) in 15.07 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%