Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:31:31 2012

Optimize a model with 56709 rows, 46010 columns and 215068 nonzeros
Presolve removed 874 rows and 3426 columns
Presolve time: 4.16s
Presolved: 55835 rows, 42584 columns, 208982 nonzeros
Variable types: 0 continuous, 42584 integer (42584 binary)
Found heuristic solution: objective 214.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: infeasible, 361 iterations, 0.03 seconds

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

     0     0 infeasible    0         3.00000    2.00000  33.3%     -    4s

Explored 0 nodes (361 simplex iterations) in 4.33 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%