Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:41:34 2012

Optimize a model with 51599 rows, 46440 columns and 200163 nonzeros
Presolve removed 16 rows and 3012 columns
Presolve time: 1.20s
Presolved: 51583 rows, 43428 columns, 196673 nonzeros
Variable types: 0 continuous, 43428 integer (43428 binary)
Found heuristic solution: objective 215.0000000

Root relaxation: objective 2.000000e+00, 31808 iterations, 2.62 seconds
Total elapsed time = 6.92s

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

     0     0    2.00000    0  378  215.00000    2.00000  99.1%     -    8s
H    0     0                     213.0000000    2.00000  99.1%     -    8s
H    0     0                       4.0000000    2.00000  50.0%     -    8s
H    0     0                       3.0000000    2.00000  33.3%     -    8s

Cutting planes:
  Gomory: 1

Explored 0 nodes (105708 simplex iterations) in 8.66 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 2.000000000000e+00, gap 33.3333%