Gurobi 5.0.1 (linux64) logging started Sat Nov 17 03:51:07 2012

Optimize a model with 56895 rows, 50400 columns and 219966 nonzeros
Presolve removed 471 rows and 4706 columns
Presolve time: 1.50s
Presolved: 56424 rows, 45694 columns, 213638 nonzeros
Variable types: 0 continuous, 45694 integer (45694 binary)
Found heuristic solution: objective 224.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   37618    3.0000866e+00   5.789268e+02   0.000000e+00      5s
   43414    3.0001002e+00   8.913684e+02   0.000000e+00     10s
   48106    3.0001048e+00   3.248859e+01   0.000000e+00     15s
   51694    3.0001071e+00   2.117978e+02   0.000000e+00     20s
   55144    3.0001088e+00   9.900000e+01   0.000000e+00     25s
   58732    3.0001113e+00   3.564296e+01   0.000000e+00     30s
   62320    3.0001136e+00   8.797161e+00   0.000000e+00     35s
   64560    3.0000000e+00   0.000000e+00   0.000000e+00     38s

Root relaxation: objective 3.000000e+00, 64560 iterations, 37.94 seconds
Total elapsed time = 59.04s
Total elapsed time = 60.33s

    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%     -   60s

Explored 0 nodes (121138 simplex iterations) in 60.76 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%