Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:21:54 2012

Optimize a model with 45953 rows, 43056 columns and 179881 nonzeros
Presolve removed 29 rows and 5591 columns
Presolve time: 1.02s
Presolved: 45924 rows, 37465 columns, 173848 nonzeros
Variable types: 0 continuous, 37465 integer (37465 binary)
Found heuristic solution: objective 207.0000000

Root relaxation: objective 2.000000e+00, 26455 iterations, 2.14 seconds
Total elapsed time = 6.05s

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

     0     0    2.00000    0  340  207.00000    2.00000  99.0%     -    6s
H    0     0                     178.0000000    2.00000  98.9%     -    7s
H    0     0                       4.0000000    2.00000  50.0%     -    7s
     0     0    2.20000    0 1948    4.00000    2.20000  45.0%     -   35s
H    0     0                       3.0000000    2.20000  26.7%     -   36s

Cutting planes:
  Gomory: 1
  Zero half: 11

Explored 0 nodes (124073 simplex iterations) in 36.26 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%