Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:38:53 2012

Optimize a model with 50739 rows, 46440 columns and 197583 nonzeros
Presolve removed 21 rows and 4087 columns
Presolve time: 1.10s
Presolved: 50718 rows, 42353 columns, 193026 nonzeros
Variable types: 0 continuous, 42353 integer (42353 binary)
Found heuristic solution: objective 215.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 442 iterations, 0.02 seconds

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

     0     0    2.00000    0  374    3.00000    2.00000  33.3%     -    1s

Explored 0 nodes (826 simplex iterations) in 1.39 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%