Gurobi 5.0.1 (linux64) logging started Sat Nov 17 02:41:10 2012

Optimize a model with 60939 rows, 48620 columns and 230338 nonzeros
Presolve removed 898 rows and 3522 columns
Presolve time: 4.36s
Presolved: 60041 rows, 45098 columns, 224072 nonzeros
Variable types: 0 continuous, 45098 integer (45098 binary)
Found heuristic solution: objective 220.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   36745    3.0001277e+00   7.390000e+02   0.000000e+00      5s
   44049    3.0001565e+00   3.375000e+02   0.000000e+00     10s
   48852    3.0001697e+00   2.004667e+02   0.000000e+00     15s
   53707    3.0001801e+00   1.403750e+02   0.000000e+00     20s
   57398    3.0000000e+00   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 3.000000e+00, 57398 iterations, 24.87 seconds
Total elapsed time = 57.84s
Total elapsed time = 68.77s
Total elapsed time = 72.22s

    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%     -   77s

Explored 0 nodes (148234 simplex iterations) in 77.21 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%