Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:05:59 2012

Optimize a model with 57791 rows, 50400 columns and 222654 nonzeros
Presolve removed 450 rows and 2 columns
Presolve time: 1.53s
Presolved: 57565 rows, 50398 columns, 271198 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
   39722    3.0000950e+00   4.700000e+01   0.000000e+00      5s
   44330    3.0000997e+00   2.161062e+01   0.000000e+00     10s
   48361    3.0001034e+00   1.463333e+02   0.000000e+00     15s
   52114    3.0001061e+00   2.903327e+01   0.000000e+00     20s
   55867    3.0001085e+00   7.783601e+00   0.000000e+00     25s
   58419    3.0000000e+00   0.000000e+00   0.000000e+00     29s

Root relaxation: objective 3.000000e+00, 58419 iterations, 28.98 seconds
Total elapsed time = 76.95s

    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%     -   81s

Explored 0 nodes (121817 simplex iterations) in 81.41 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%