Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:29:32 2012

Optimize a model with 50959 rows, 43472 columns and 195310 nonzeros
Presolve removed 442 rows and 4994 columns
Presolve time: 1.28s
Presolved: 50517 rows, 38478 columns, 188792 nonzeros
Variable types: 0 continuous, 38478 integer (38478 binary)
Found heuristic solution: objective 208.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   32998    3.0000808e+00   8.018523e+02   0.000000e+00      5s
   39818    3.0000928e+00   1.970869e+01   0.000000e+00     10s
   44665    3.0000964e+00   2.707506e+02   0.000000e+00     15s
   49119    3.0000995e+00   2.969093e+01   0.000000e+00     20s
   53049    3.0001024e+00   4.669338e+01   0.000000e+00     25s
   56717    3.0001046e+00   5.635463e+01   0.000000e+00     30s
   60385    3.0001069e+00   3.694962e+00   0.000000e+00     35s
   63618    3.0000000e+00   0.000000e+00   0.000000e+00     38s

Root relaxation: objective 3.000000e+00, 63618 iterations, 38.48 seconds
Total elapsed time = 68.85s

    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%     -   69s

Explored 0 nodes (103757 simplex iterations) in 69.04 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%