Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:33:14 2012

Optimize a model with 40601 rows, 40602 columns and 161401 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.96s
Presolved: 40800 rows, 40600 columns, 201398 nonzeros
Variable types: 0 continuous, 40600 integer (40600 binary)
Found heuristic solution: objective 201.0000000

Root relaxation: objective 2.000000e+00, 24558 iterations, 1.90 seconds
Total elapsed time = 5.33s

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

     0     0    2.00000    0  320  201.00000    2.00000  99.0%     -    6s
H    0     0                     173.0000000    2.00000  98.8%     -    6s
H    0     0                       4.0000000    2.00000  50.0%     -    6s
H    0     0                       3.0000000    2.00000  33.3%     -    6s
     0     0 infeasible    0         3.00000    2.00000  33.3%     -    6s

Cutting planes:
  Gomory: 2
  Zero half: 25

Explored 0 nodes (80474 simplex iterations) in 6.58 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%