Gurobi 5.0.1 (linux64) logging started Sat Nov 17 02:18:50 2012

Optimize a model with 59295 rows, 47742 columns and 224538 nonzeros
Presolve removed 438 rows and 2 columns
Presolve time: 4.18s
Presolved: 59075 rows, 47740 columns, 270432 nonzeros
Variable types: 0 continuous, 47740 integer (47740 binary)
Found heuristic solution: objective 218.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   33907    3.0000781e+00   5.978571e+01   0.000000e+00      5s
   41485    3.0000857e+00   7.035067e+01   0.000000e+00     10s
   44869    3.0000889e+00   2.793251e+01   0.000000e+00     15s
   48253    3.0000922e+00   1.186522e+02   0.000000e+00     20s
   51637    3.0000946e+00   2.700988e+02   0.000000e+00     25s
   54880    3.0000966e+00   7.156685e+01   0.000000e+00     30s
   58264    3.0000991e+00   2.047668e+02   0.000000e+00     35s
   61366    3.0001011e+00   4.286348e+01   0.000000e+00     40s
   64609    3.0001033e+00   1.507701e+01   0.000000e+00     45s
   67570    3.0001049e+00   7.226812e+01   0.000000e+00     50s
   70672    3.0001071e+00   1.836875e+01   0.000000e+00     55s
   73774    3.0001092e+00   2.607713e+01   0.000000e+00     60s
   75928    3.0000000e+00   0.000000e+00   0.000000e+00     63s

Root relaxation: objective 3.000000e+00, 75928 iterations, 62.61 seconds
Total elapsed time = 83.38s

    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%     -   87s

Explored 0 nodes (136512 simplex iterations) in 87.92 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%