Gurobi 5.0.1 (linux64) logging started Sat Nov 17 06:39:14 2012

Optimize a model with 63799 rows, 54056 columns and 244294 nonzeros
Presolve removed 957 rows and 6266 columns
Presolve time: 1.68s
Presolved: 62842 rows, 47790 columns, 235168 nonzeros
Variable types: 0 continuous, 47790 integer (47790 binary)
Found heuristic solution: objective 232.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   31580    3.0000791e+00   1.890625e+01   0.000000e+00      5s
   35785    3.0000823e+00   2.133250e+02   0.000000e+00     10s
   39410    3.0000855e+00   9.018048e+01   0.000000e+00     15s
   43035    3.0000896e+00   5.057851e+01   0.000000e+00     20s
   47095    3.0000976e+00   2.759825e+00   0.000000e+00     25s
   47892    3.0000000e+00   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 3.000000e+00, 47892 iterations, 25.56 seconds
Total elapsed time = 78.07s
Total elapsed time = 80.53s

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

     0     0    3.00000    0   12  232.00000    3.00000  98.7%     -   88s
H    0     0                       3.0000000    3.00000   0.0%     -   88s

Explored 0 nodes (153513 simplex iterations) in 88.29 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%