Gurobi 5.0.1 (linux64) logging started Sat Nov 17 05:23:02 2012

Optimize a model with 61559 rows, 52212 columns and 235750 nonzeros
Presolve removed 458 rows and 2 columns
Presolve time: 1.55s
Presolved: 61329 rows, 52210 columns, 286058 nonzeros
Variable types: 0 continuous, 52210 integer (52210 binary)
Found heuristic solution: objective 228.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   37231    3.0000755e+00   1.500690e+02   0.000000e+00      5s
   45595    3.0000869e+00   4.975087e+01   0.000000e+00     10s
   48884    3.0000898e+00   1.825463e+02   0.000000e+00     15s
   52316    3.0000927e+00   1.752034e+02   0.000000e+00     20s
   55748    3.0000954e+00   2.492680e+01   0.000000e+00     25s
   59037    3.0000981e+00   1.000892e+01   0.000000e+00     30s
   62469    3.0001012e+00   3.257779e+01   0.000000e+00     35s
   65758    3.0001058e+00   5.884295e+00   0.000000e+00     40s
   68407    3.0000000e+00   0.000000e+00   0.000000e+00     45s

Root relaxation: objective 3.000000e+00, 68407 iterations, 44.84 seconds
Total elapsed time = 76.11s

    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%     -   77s

Explored 0 nodes (121445 simplex iterations) in 77.29 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%