Gurobi 5.0.1 (linux64) logging started Sat Nov 17 08:41:18 2012

Optimize a model with 68399 rows, 57840 columns and 261838 nonzeros
Presolve removed 24 rows and 5282 columns
Presolve time: 1.74s
Presolved: 68375 rows, 52558 columns, 255988 nonzeros
Variable types: 0 continuous, 52558 integer (52558 binary)
Found heuristic solution: objective 240.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 504 iterations, 0.03 seconds

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

     0     0    2.00000    0  410    3.00000    2.00000  33.3%     -    2s
     0     0 infeasible    0         3.00000    2.00000  33.3%     -    2s

Explored 0 nodes (926 simplex iterations) in 2.14 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%