Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:38:48 2012

Optimize a model with 51622 rows, 43890 columns and 197712 nonzeros
Presolve removed 1277 rows and 4391 columns
Presolve time: 1.31s
Presolved: 50345 rows, 39499 columns, 189706 nonzeros
Variable types: 0 continuous, 39499 integer (39499 binary)
Found heuristic solution: objective 209.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27133    3.0000804e+00   4.800000e+01   0.000000e+00      5s
   31718    3.0000841e+00   4.879570e+01   0.000000e+00     10s
   35779    3.0000877e+00   4.206298e+02   0.000000e+00     15s
   39840    3.0000913e+00   1.124143e+01   0.000000e+00     20s
   43901    3.0000957e+00   1.192039e+01   0.000000e+00     25s
   47569    3.0000998e+00   2.504341e+00   0.000000e+00     30s
   47639    3.0000000e+00   0.000000e+00   0.000000e+00     30s

Root relaxation: objective 3.000000e+00, 47639 iterations, 30.19 seconds
Total elapsed time = 65.33s
Total elapsed time = 71.26s
Total elapsed time = 77.93s

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

     0     0    3.00000    0   87  209.00000    3.00000  98.6%     -   81s
H    0     0                       3.0000000    3.00000   0.0%     -   81s

Explored 0 nodes (152449 simplex iterations) in 81.34 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%