Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:31:14 2012

Optimize a model with 46028 rows, 40602 columns and 177682 nonzeros
Presolve removed 429 rows and 5027 columns
Presolve time: 1.11s
Presolved: 45599 rows, 35575 columns, 171198 nonzeros
Variable types: 0 continuous, 35575 integer (35575 binary)
Found heuristic solution: objective 201.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   31711    3.0000723e+00   2.085714e+02   0.000000e+00      5s
   38811    3.0000971e+00   5.919790e+02   0.000000e+00     10s
   43311    3.0001007e+00   1.290026e+01   0.000000e+00     15s
   47686    3.0001046e+00   2.547591e+00   0.000000e+00     20s
   50210    3.0000000e+00   0.000000e+00   0.000000e+00     23s

Root relaxation: objective 3.000000e+00, 50210 iterations, 22.69 seconds

    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%     -   48s

Explored 0 nodes (77425 simplex iterations) in 48.38 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%