Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:37:41 2012

Optimize a model with 51145 rows, 46010 columns and 198376 nonzeros
Presolve removed 430 rows and 2 columns
Presolve time: 1.32s
Presolved: 50929 rows, 46008 columns, 242628 nonzeros
Variable types: 0 continuous, 46008 integer (46008 binary)
Found heuristic solution: objective 214.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   32356    3.0000912e+00   1.162833e+03   0.000000e+00      5s
   38500    3.0001251e+00   2.006667e+02   0.000000e+00     10s
   44436    3.0001495e+00   7.880000e+01   0.000000e+00     15s
   48956    3.0001571e+00   5.404762e-01   0.000000e+00     20s
   48997    3.0000000e+00   0.000000e+00   0.000000e+00     20s

Root relaxation: objective 3.000000e+00, 48997 iterations, 20.21 seconds
Total elapsed time = 43.35s
Total elapsed time = 46.88s

    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%     -   47s

Explored 0 nodes (120935 simplex iterations) in 47.91 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%