Gurobi 5.0.1 (linux64) logging started Sat Nov 17 07:28:36 2012

Optimize a model with 70029 rows, 55460 columns and 264373 nonzeros
Presolve removed 954 rows and 3290 columns (presolve time = 5s) ...
Presolve removed 956 rows and 3292 columns
Presolve time: 5.74s
Presolved: 69073 rows, 52168 columns, 258145 nonzeros
Variable types: 0 continuous, 52168 integer (52168 binary)
Found heuristic solution: objective 235.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   38111    3.0000830e+00   8.391852e+01   0.000000e+00      5s
   44127    3.0000889e+00   9.863724e+01   0.000000e+00     10s
   47902    3.0000936e+00   3.862026e+01   0.000000e+00     15s
   51526    3.0000971e+00   9.314450e+01   0.000000e+00     20s
   54395    3.0000991e+00   3.220366e+02   0.000000e+00     25s
   57717    3.0001015e+00   4.062898e+01   0.000000e+00     30s
   60737    3.0001035e+00   2.505902e+01   0.000000e+00     35s
   63606    3.0001054e+00   2.399768e+02   0.000000e+00     40s
   66475    3.0001071e+00   1.266537e+01   0.000000e+00     45s
   69344    3.0001085e+00   1.059040e+01   0.000000e+00     50s
   72062    3.0001099e+00   1.746983e+02   0.000000e+00     55s
   74629    3.0001109e+00   6.934719e+00   0.000000e+00     60s
   77196    3.0001116e+00   1.458600e+02   0.000000e+00     65s
   80216    3.0001123e+00   2.142571e+00   0.000000e+00     70s
   83139    3.0000000e+00   0.000000e+00   0.000000e+00     75s

Root relaxation: objective 3.000000e+00, 83139 iterations, 75.02 seconds

    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%     -  131s

Explored 0 nodes (127495 simplex iterations) in 131.38 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%