Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:45:18 2012

Optimize a model with 47095 rows, 41412 columns and 181683 nonzeros
Presolve removed 1243 rows and 4671 columns
Presolve time: 1.19s
Presolved: 45852 rows, 36741 columns, 173517 nonzeros
Variable types: 0 continuous, 36741 integer (36741 binary)
Found heuristic solution: objective 203.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27723    3.0000802e+00   8.069767e+00   0.000000e+00      5s
   32763    3.0000849e+00   4.252043e+02   0.000000e+00     10s
   37677    3.0000909e+00   3.992961e+00   0.000000e+00     15s
   38571    3.0000000e+00   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 3.000000e+00, 38571 iterations, 16.01 seconds
Total elapsed time = 36.51s

    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%     -   38s

Explored 0 nodes (106753 simplex iterations) in 38.60 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%