Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:55:21 2012

Optimize a model with 31312 rows, 32942 columns and 125974 nonzeros
Presolve removed 27 rows and 4527 columns
Presolve time: 0.68s
Presolved: 31285 rows, 28415 columns, 121103 nonzeros
Variable types: 0 continuous, 28415 integer (28415 binary)
Found heuristic solution: objective 181.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 361 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  284    3.00000    2.00000  33.3%     -    0s

Explored 0 nodes (645 simplex iterations) in 0.86 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%