Gurobi 5.0.1 (linux64) logging started Sat Nov 17 03:59:58 2012

Optimize a model with 57343 rows, 50400 columns and 221310 nonzeros
Presolve removed 450 rows and 2 columns
Presolve time: 1.54s
Presolved: 57117 rows, 50398 columns, 269858 nonzeros
Variable types: 0 continuous, 50398 integer (50398 binary)
Found heuristic solution: objective 224.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   35954    3.0000821e+00   6.597541e+01   0.000000e+00      5s
   40402    3.0000876e+00   2.369016e+02   0.000000e+00     10s
   44572    3.0000917e+00   1.766063e+01   0.000000e+00     15s
   48325    3.0000947e+00   1.788272e+01   0.000000e+00     20s
   52078    3.0000985e+00   1.233314e+00   0.000000e+00     25s
   52442    3.0000000e+00   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 3.000000e+00, 52442 iterations, 25.44 seconds
Total elapsed time = 48.64s

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

*    0     0               0       3.0000000    3.00000   0.0%     -   50s

Explored 0 nodes (98846 simplex iterations) in 50.56 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%