Gurobi 5.0.1 (linux64) logging started Sat Nov 17 07:01:50 2012

Optimize a model with 64817 rows, 54990 columns and 248272 nonzeros
Presolve removed 25 rows and 5384 columns
Presolve time: 1.49s
Presolved: 64792 rows, 49606 columns, 242336 nonzeros
Variable types: 0 continuous, 49606 integer (49606 binary)
Found heuristic solution: objective 234.0000000

Root relaxation: objective 2.000000e+00, 35781 iterations, 3.57 seconds
Total elapsed time = 10.31s

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

     0     0    2.00000    0  398  234.00000    2.00000  99.1%     -   11s
H    0     0                     218.0000000    2.00000  99.1%     -   11s
H    0     0                       4.0000000    2.00000  50.0%     -   12s
H    0     0                       3.0000000    2.00000  33.3%     -   12s
     0     0 infeasible    0         3.00000    2.00000  33.3%     -   12s

Cutting planes:
  Gomory: 2
  Zero half: 43

Explored 0 nodes (116344 simplex iterations) in 12.33 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%