Gurobi 5.0.1 (linux64) logging started Sat Nov 17 03:01:44 2012

Optimize a model with 55912 rows, 49062 columns and 215694 nonzeros
Presolve removed 466 rows and 4864 columns
Presolve time: 1.40s
Presolved: 55446 rows, 44198 columns, 209225 nonzeros
Variable types: 0 continuous, 44198 integer (44198 binary)
Found heuristic solution: objective 221.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26135    3.0000860e+00   1.232895e+01   0.000000e+00      5s
   30519    3.0000901e+00   5.960501e+01   0.000000e+00     10s
   34492    3.0000939e+00   1.929306e+01   0.000000e+00     15s
   38602    3.0000974e+00   5.250306e+01   0.000000e+00     20s
   42079    3.0000000e+00   0.000000e+00   0.000000e+00     24s

Root relaxation: objective 3.000000e+00, 42079 iterations, 23.95 seconds
Total elapsed time = 67.17s
Total elapsed time = 77.22s

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

     0     0    3.00000    0  192  221.00000    3.00000  98.6%     -   79s
H    0     0                       3.0000000    3.00000   0.0%     -   79s

Explored 0 nodes (140429 simplex iterations) in 79.48 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%