Gurobi 5.0.1 (linux64) logging started Sat Nov 17 07:05:18 2012

Optimize a model with 65285 rows, 54990 columns and 249676 nonzeros
Presolve removed 718 rows and 3278 columns
Presolve time: 1.99s
Presolved: 64567 rows, 51712 columns, 244210 nonzeros
Variable types: 0 continuous, 51712 integer (51712 binary)
Found heuristic solution: objective 234.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   36287    2.9763029e+00   3.333810e+02   0.000000e+00      5s
   50709    3.0001571e+00   1.770112e+02   0.000000e+00     10s
   54090    3.0001586e+00   2.061124e+02   0.000000e+00     15s
   57618    3.0001602e+00   5.294216e+01   0.000000e+00     20s
   61146    3.0001617e+00   2.115230e+01   0.000000e+00     25s
   64527    3.0001628e+00   5.182494e+02   0.000000e+00     30s
   68055    3.0001639e+00   7.762288e+00   0.000000e+00     35s
   68507    3.0000000e+00   0.000000e+00   0.000000e+00     36s

Root relaxation: objective 3.000000e+00, 68507 iterations, 35.76 seconds
Total elapsed time = 65.94s
Total elapsed time = 70.99s
Total elapsed time = 84.39s

    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%     -   85s

Explored 0 nodes (171544 simplex iterations) in 85.23 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%