Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:18:20 2012

Optimize a model with 61424 rows, 50850 columns and 233998 nonzeros
Presolve removed 469 rows and 3827 columns
Presolve time: 4.23s
Presolved: 60955 rows, 47023 columns, 228506 nonzeros
Variable types: 0 continuous, 47023 integer (47023 binary)
Found heuristic solution: objective 225.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   29833    3.0000866e+00   2.113953e+01   0.000000e+00      5s
   33980    3.0000908e+00   3.389405e+02   0.000000e+00     10s
   37984    3.0000956e+00   5.688050e+01   0.000000e+00     15s
   42131    3.0001040e+00   6.483349e+00   0.000000e+00     20s
   44185    3.0000000e+00   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 3.000000e+00, 44185 iterations, 22.50 seconds
Total elapsed time = 54.84s
Total elapsed time = 58.07s
Total elapsed time = 60.29s
Total elapsed time = 67.65s

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

     0     0    3.00000    0   60  225.00000    3.00000  98.7%     -   69s
H    0     0                       3.0000000    3.00000   0.0%     -   69s

Explored 0 nodes (160956 simplex iterations) in 69.20 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%