Gurobi 5.0.1 (linux64) logging started Sat Nov 17 06:34:21 2012

Optimize a model with 60983 rows, 53592 columns and 235387 nonzeros
Presolve removed 480 rows and 3698 columns
Presolve time: 1.59s
Presolved: 60503 rows, 49894 columns, 230012 nonzeros
Variable types: 0 continuous, 49894 integer (49894 binary)
Found heuristic solution: objective 231.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   39583    3.0000883e+00   5.547500e+02   0.000000e+00      5s
   52878    3.0001500e+00   5.789219e+01   0.000000e+00     10s
   57280    3.0001521e+00   2.706804e+01   0.000000e+00     15s
   61682    3.0001544e+00   1.338907e+02   0.000000e+00     20s
   65374    3.0001560e+00   1.117897e+01   0.000000e+00     25s
   69066    3.0001578e+00   1.901285e+01   0.000000e+00     30s
   72190    3.0001586e+00   9.770644e+00   0.000000e+00     35s
   73003    3.0000000e+00   0.000000e+00   0.000000e+00     36s

Root relaxation: objective 3.000000e+00, 73003 iterations, 36.30 seconds
Total elapsed time = 81.09s
Total elapsed time = 89.75s

    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%     -   90s

Explored 0 nodes (138516 simplex iterations) in 90.59 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%