Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:04:36 2012

Optimize a model with 40975 rows, 39006 columns and 160947 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.93s
Presolved: 41170 rows, 39004 columns, 199340 nonzeros
Variable types: 0 continuous, 39004 integer (39004 binary)
Found heuristic solution: objective 197.0000000

Root relaxation: objective 2.000000e+00, 24874 iterations, 1.95 seconds
Total elapsed time = 5.36s

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

     0     0    2.00000    0  326  197.00000    2.00000  99.0%     -    6s
H    0     0                       4.0000000    2.00000  50.0%     -    6s
     0     0    2.22222    0 3396    4.00000    2.22222  44.4%     -   36s
     0     0    2.40000    0 10151    4.00000    2.40000  40.0%     -   51s
     0     0    2.40000    0  456    4.00000    2.40000  40.0%     -  149s
H    0     0                       3.0000000    2.40000  20.0%     -  150s

Cutting planes:
  Gomory: 1
  Zero half: 3

Explored 0 nodes (276421 simplex iterations) in 150.07 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%