Gurobi 5.0.1 (linux64) logging started Sat Nov 17 05:06:54 2012

Optimize a model with 63559 rows, 51756 columns and 241299 nonzeros
Presolve removed 910 rows and 2 columns
Presolve time: 4.73s
Presolved: 62876 rows, 51754 columns, 290006 nonzeros
Variable types: 0 continuous, 51754 integer (51754 binary)
Found heuristic solution: objective 227.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   33105    3.0000892e+00   2.034146e+01   0.000000e+00      5s
   38470    3.0000935e+00   2.060545e+01   0.000000e+00     10s
   42240    3.0000972e+00   2.192642e+01   0.000000e+00     15s
   45720    3.0001004e+00   1.122840e+02   0.000000e+00     20s
   49490    3.0001061e+00   1.005738e+02   0.000000e+00     25s
   53115    3.0001093e+00   2.263157e+01   0.000000e+00     30s
   56160    3.0001098e+00   2.631579e-02   0.000000e+00     35s
   56248    3.0000000e+00   0.000000e+00   0.000000e+00     35s

Root relaxation: objective 3.000000e+00, 56248 iterations, 35.18 seconds
Total elapsed time = 90.74s

    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%     -   95s

Explored 0 nodes (150060 simplex iterations) in 95.02 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%