Gurobi 5.0.1 (linux64) logging started Sat Nov 17 09:10:05 2012

Optimize a model with 71631 rows, 58806 columns and 272490 nonzeros
Presolve removed 986 rows and 4356 columns (presolve time = 5s) ...
Presolve removed 988 rows and 4358 columns
Presolve time: 5.80s
Presolved: 70643 rows, 54448 columns, 265130 nonzeros
Variable types: 0 continuous, 54448 integer (54448 binary)
Found heuristic solution: objective 242.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   38447    3.0001255e+00   1.427000e+02   0.000000e+00      5s
   45258    3.0001458e+00   6.666667e+01   0.000000e+00     10s
   49389    3.0001528e+00   7.225774e+01   0.000000e+00     15s
   51837    3.0001570e+00   7.256595e+01   0.000000e+00     20s
   54285    3.0001608e+00   2.676398e+01   0.000000e+00     25s
   56886    3.0001644e+00   2.034190e+01   0.000000e+00     30s
   59487    3.0001681e+00   6.811837e+01   0.000000e+00     35s
   61782    3.0001710e+00   1.233931e+02   0.000000e+00     40s
   64230    3.0001740e+00   1.507809e+02   0.000000e+00     45s
   66525    3.0001764e+00   1.666215e+01   0.000000e+00     50s
   68973    3.0001794e+00   2.343871e+02   0.000000e+00     55s
   71574    3.0001838e+00   1.318297e+01   0.000000e+00     60s
   74022    3.0001867e+00   2.886833e+02   0.000000e+00     65s
   76470    3.0001895e+00   8.056374e+00   0.000000e+00     70s
   78918    3.0001926e+00   6.856450e+00   0.000000e+00     75s
   81366    3.0001958e+00   2.431457e+01   0.000000e+00     80s
   83508    3.0001978e+00   6.317794e+01   0.000000e+00     85s
   85956    3.0002005e+00   2.873091e+02   0.000000e+00     90s
   88251    3.0002022e+00   2.482656e+00   0.000000e+00     95s
   89991    3.0000000e+00   0.000000e+00   0.000000e+00     99s

Root relaxation: objective 3.000000e+00, 89991 iterations, 99.07 seconds
Total elapsed time = 172.83s
Total elapsed time = 176.55s

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

     0     0    3.00000    0   99  242.00000    3.00000  98.8%     -  177s
H    0     0                       3.0000000    3.00000   0.0%     -  177s

Explored 0 nodes (169524 simplex iterations) in 177.48 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%