Gurobi 5.0.1 (linux64) logging started Sat Nov 17 03:17:30 2012

Optimize a model with 61715 rows, 49506 columns and 233542 nonzeros
Presolve removed 1345 rows and 2444 columns
Presolve time: 4.39s
Presolved: 60370 rows, 47062 columns, 227226 nonzeros
Variable types: 0 continuous, 47062 integer (47062 binary)
Found heuristic solution: objective 222.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   34688    3.0001052e+00   3.569600e+02   0.000000e+00      5s
   41205    3.0001417e+00   1.225000e+02   0.000000e+00     10s
   46163    3.0001581e+00   2.695349e+01   0.000000e+00     15s
   50281    3.0001633e+00   8.664260e+01   0.000000e+00     20s
   53831    3.0001647e+00   2.835772e+02   0.000000e+00     25s
   57523    3.0001664e+00   7.959498e+01   0.000000e+00     30s
   60931    3.0001676e+00   1.415975e+01   0.000000e+00     35s
   64481    3.0001688e+00   9.725416e+00   0.000000e+00     40s
   67747    3.0001694e+00   1.997377e+00   0.000000e+00     45s
   68467    3.0000000e+00   0.000000e+00   0.000000e+00     46s

Root relaxation: objective 3.000000e+00, 68467 iterations, 46.12 seconds
Total elapsed time = 90.95s
Total elapsed time = 128.07s

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

     0     0    3.00000    0   70  222.00000    3.00000  98.6%     -  129s
H    0     0                       3.0000000    3.00000   0.0%     -  130s

Explored 0 nodes (169321 simplex iterations) in 130.12 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%