Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:55:09 2012

Optimize a model with 55511 rows, 46872 columns and 212326 nonzeros
Presolve removed 866 rows and 2 columns
Presolve time: 1.41s
Presolved: 54861 rows, 46870 columns, 256316 nonzeros
Variable types: 0 continuous, 46870 integer (46870 binary)
Found heuristic solution: objective 216.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   36195    3.0000874e+00   8.299609e+02   0.000000e+00      5s
   41363    3.0001000e+00   2.021818e+02   0.000000e+00     10s
   44355    3.0001043e+00   8.808492e+01   0.000000e+00     15s
   47075    3.0001107e+00   1.766491e+02   0.000000e+00     20s
   50067    3.0001164e+00   2.756383e+01   0.000000e+00     25s
   53059    3.0001231e+00   1.918636e+01   0.000000e+00     30s
   55915    3.0001287e+00   8.248948e+01   0.000000e+00     35s
   58907    3.0001337e+00   7.072716e+01   0.000000e+00     40s
   62035    3.0001414e+00   6.481935e+00   0.000000e+00     45s
   65163    3.0001482e+00   1.567999e+00   0.000000e+00     50s
   65403    3.0000000e+00   0.000000e+00   0.000000e+00     50s

Root relaxation: objective 3.000000e+00, 65403 iterations, 50.31 seconds
Total elapsed time = 96.75s

    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%     -   99s

Explored 0 nodes (143672 simplex iterations) in 99.84 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%