Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:09:35 2012

Optimize a model with 47474 rows, 44732 columns and 186100 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 1.14s
Presolved: 47683 rows, 44730 columns, 230171 nonzeros
Variable types: 0 continuous, 44730 integer (44730 binary)
Found heuristic solution: objective 211.0000000

Root relaxation: objective 2.000000e+00, 29073 iterations, 2.79 seconds
Total elapsed time = 6.95s

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

     0     0    2.00000    0  352  211.00000    2.00000  99.1%     -    8s
H    0     0                       4.0000000    2.00000  50.0%     -    8s
     0     0    2.66667    0 3979    4.00000    2.66667  33.3%     -   19s
H    0     0                       3.0000000    2.66667  11.1%     -   22s

Cutting planes:
  Clique: 2
  Zero half: 4

Explored 0 nodes (115791 simplex iterations) in 22.15 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%