Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:01:48 2012

Optimize a model with 40975 rows, 39006 columns and 160947 nonzeros
Presolve removed 28 rows and 5124 columns
Presolve time: 0.87s
Presolved: 40947 rows, 33882 columns, 155409 nonzeros
Variable types: 0 continuous, 33882 integer (33882 binary)
Found heuristic solution: objective 197.0000000

Root relaxation: objective 2.000000e+00, 24120 iterations, 1.78 seconds
Total elapsed time = 5.22s

    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                      96.0000000    2.00000  97.9%     -    6s
H    0     0                       4.0000000    2.00000  50.0%     -    6s
     0     0    2.20000    0 6014    4.00000    2.20000  45.0%     -   17s
H    0     0                       3.0000000    2.20000  26.7%     -   21s

Cutting planes:
  Zero half: 5

Explored 0 nodes (98736 simplex iterations) in 21.11 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%