Gurobi 5.0.1 (linux64) logging started Sat Nov 17 03:29:20 2012

Optimize a model with 56831 rows, 49506 columns and 218890 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 1.35s
Presolved: 57051 rows, 49504 columns, 267662 nonzeros
Variable types: 0 continuous, 49504 integer (49504 binary)
Found heuristic solution: objective 222.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 495 iterations, 0.04 seconds

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

     0     0    2.00000    0  396    3.00000    2.00000  33.3%     -    1s
     0     0 infeasible    0         3.00000    2.00000  33.3%     -    1s

Explored 0 nodes (959 simplex iterations) in 1.72 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%