Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:44:15 2012

Optimize a model with 50975 rows, 46872 columns and 198718 nonzeros
Presolve removed 27 rows and 5402 columns
Presolve time: 1.16s
Presolved: 50948 rows, 41470 columns, 192846 nonzeros
Variable types: 0 continuous, 41470 integer (41470 binary)
Found heuristic solution: objective 216.0000000

Root relaxation: objective 2.000000e+00, 30455 iterations, 2.70 seconds
Total elapsed time = 7.16s

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

     0     0    2.00000    0  358  216.00000    2.00000  99.1%     -    8s
H    0     0                     202.0000000    2.00000  99.0%     -    8s
H    0     0                       4.0000000    2.00000  50.0%     -    8s
     0     0    2.66667    0 14057    4.00000    2.66667  33.3%     -   24s
H    0     0                       3.0000000    2.66667  11.1%     -   49s

Cutting planes:
  Clique: 2
  Zero half: 2

Explored 0 nodes (129015 simplex iterations) in 49.82 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%