Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:43:55 2012

Optimize a model with 63053 rows, 51302 columns and 239332 nonzeros
Presolve removed 906 rows and 2 columns
Presolve time: 4.74s
Presolved: 62373 rows, 51300 columns, 287598 nonzeros
Variable types: 0 continuous, 51300 integer (51300 binary)
Found heuristic solution: objective 226.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   34777    3.0000772e+00   5.633333e+01   0.000000e+00      5s
   40328    3.0000849e+00   7.848822e+01   0.000000e+00     10s
   43496    3.0000879e+00   1.279734e+01   0.000000e+00     15s
   47240    3.0000928e+00   2.297239e+01   0.000000e+00     20s
   50696    3.0000971e+00   1.339827e+01   0.000000e+00     25s
   53864    3.0001012e+00   1.041448e+02   0.000000e+00     30s
   57270    3.0000000e+00   0.000000e+00   0.000000e+00     35s

Root relaxation: objective 3.000000e+00, 57270 iterations, 35.08 seconds
Total elapsed time = 78.66s
Total elapsed time = 80.71s

    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%     -   84s

Explored 0 nodes (134251 simplex iterations) in 84.32 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%