Gurobi 5.0.1 (linux64) logging started Sat Nov 17 02:26:19 2012

Optimize a model with 51683 rows, 48180 columns and 202135 nonzeros
Presolve removed 28 rows and 5696 columns
Presolve time: 1.22s
Presolved: 51655 rows, 42484 columns, 195969 nonzeros
Variable types: 0 continuous, 42484 integer (42484 binary)
Found heuristic solution: objective 219.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 446 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  350    3.00000    2.00000  33.3%     -    1s
     0     0 infeasible    0         3.00000    2.00000  33.3%     -    1s

Explored 0 nodes (817 simplex iterations) in 1.53 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%