Gurobi 5.0.1 (linux64) logging started Sat Nov 17 03:49:45 2012

Optimize a model with 64287 rows, 50400 columns and 242142 nonzeros
Presolve removed 471 rows and 4706 columns
Presolve time: 4.70s
Presolved: 63816 rows, 45694 columns, 235748 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
   35414    3.0000808e+00   7.333571e+02   0.000000e+00      5s
   42142    3.0001028e+00   3.583714e+03   0.000000e+00     10s
   46376    3.0001068e+00   5.109444e+02   0.000000e+00     15s
   50026    3.0001089e+00   1.633380e+02   0.000000e+00     20s
   53530    3.0001103e+00   2.414598e+01   0.000000e+00     25s
   56572    3.0000000e+00   0.000000e+00   0.000000e+00     30s

Root relaxation: objective 3.000000e+00, 56572 iterations, 29.62 seconds
Total elapsed time = 78.55s

    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%     -   79s

Explored 0 nodes (114423 simplex iterations) in 79.70 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%