Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:25:46 2012

Optimize a model with 3569 rows, 1892 columns and 12427 nonzeros
Presolve removed 517 rows and 43 columns
Presolve time: 0.07s
Presolved: 3052 rows, 1849 columns, 11137 nonzeros
Variable types: 0 continuous, 1849 integer (1849 binary)
Found heuristic solution: objective 30.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: cutoff, 2799 iterations, 0.14 seconds

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

     0     0     cutoff    0         3.00000    2.00000  33.3%     -    0s

Explored 0 nodes (2799 simplex iterations) in 0.22 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%