Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:02:19 2012

Optimize a model with 56895 rows, 50400 columns and 219966 nonzeros
Presolve removed 450 rows and 2 columns
Presolve time: 1.55s
Presolved: 56669 rows, 50398 columns, 268518 nonzeros
Variable types: 0 continuous, 50398 integer (50398 binary)
Found heuristic solution: objective 224.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   33964    3.0000819e+00   2.978261e+01   0.000000e+00      5s
   39208    3.0000891e+00   2.186551e+02   0.000000e+00     10s
   42796    3.0000924e+00   2.788128e+01   0.000000e+00     15s
   46384    3.0000954e+00   6.205901e+01   0.000000e+00     20s
   49696    3.0000978e+00   5.842546e+01   0.000000e+00     25s
   53008    3.0001000e+00   3.870445e+02   0.000000e+00     30s
   56320    3.0001016e+00   4.472133e+00   0.000000e+00     35s
   59494    3.0001023e+00   3.727778e+00   0.000000e+00     40s
   61669    3.0000000e+00   0.000000e+00   0.000000e+00     43s

Root relaxation: objective 3.000000e+00, 61669 iterations, 43.50 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%     -   86s

Explored 0 nodes (102855 simplex iterations) in 86.20 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%