Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:46:45 2012

Optimize a model with 52271 rows, 46872 columns and 202606 nonzeros
Presolve removed 457 rows and 4970 columns
Presolve time: 1.34s
Presolved: 51814 rows, 41902 columns, 196078 nonzeros
Variable types: 0 continuous, 41902 integer (41902 binary)
Found heuristic solution: objective 216.0000000
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%     -    1s

Explored 0 nodes (361 simplex iterations) in 1.50 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%