Gurobi 5.0.1 (linux64) logging started Sat Nov 17 05:08:31 2012

Optimize a model with 61103 rows, 52212 columns and 234382 nonzeros
Presolve removed 479 rows and 4790 columns
Presolve time: 1.60s
Presolved: 60624 rows, 47422 columns, 227922 nonzeros
Variable types: 0 continuous, 47422 integer (47422 binary)
Found heuristic solution: objective 228.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: infeasible, 383 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 (383 simplex iterations) in 1.79 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%