Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:19:20 2012

Optimize a model with 55119 rows, 45156 columns and 209454 nonzeros
Presolve removed 2122 rows and 2 columns
Presolve time: 3.94s
Presolved: 53209 rows, 45154 columns, 248598 nonzeros
Variable types: 0 continuous, 45154 integer (45154 binary)
Found heuristic solution: objective 212.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25248    3.0000829e+00   3.580000e+01   0.000000e+00      5s
   29804    3.0000876e+00   1.894448e+01   0.000000e+00     10s
   33690    3.0000923e+00   4.324701e+01   0.000000e+00     15s
   37432    3.0000000e+00   0.000000e+00   0.000000e+00     20s

Root relaxation: objective 3.000000e+00, 37432 iterations, 19.57 seconds
Total elapsed time = 49.42s
Total elapsed time = 61.33s
Total elapsed time = 68.32s

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    3.00000    0  161  212.00000    3.00000  98.6%     -   70s
H    0     0                       3.0000000    3.00000   0.0%     -   70s

Explored 0 nodes (128297 simplex iterations) in 70.48 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%