Gurobi 5.0.1 (linux64) logging started Sat Nov 17 02:36:23 2012

Optimize a model with 55187 rows, 48180 columns and 212647 nonzeros
Presolve removed 878 rows and 2 columns
Presolve time: 1.43s
Presolved: 54528 rows, 48178 columns, 257922 nonzeros
Variable types: 0 continuous, 48178 integer (48178 binary)
Found heuristic solution: objective 219.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   32623    3.0000881e+00   2.168851e+02   0.000000e+00      5s
   37247    3.0000942e+00   8.128342e+02   0.000000e+00     10s
   41055    3.0000975e+00   1.244876e+01   0.000000e+00     15s
   44863    3.0001009e+00   5.885714e+01   0.000000e+00     20s
   48717    3.0000000e+00   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 3.000000e+00, 48717 iterations, 24.72 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%     -   42s

Explored 0 nodes (87020 simplex iterations) in 42.97 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%