Gurobi 5.0.1 (linux64) logging started Sat Nov 17 06:11:35 2012

Optimize a model with 60719 rows, 53130 columns and 234138 nonzeros
Presolve removed 1168 rows and 3682 columns
Presolve time: 1.76s
Presolved: 59551 rows, 49448 columns, 227180 nonzeros
Variable types: 0 continuous, 49448 integer (49448 binary)
Found heuristic solution: objective 230.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   31824    2.9091835e+00   2.722727e+01   0.000000e+00      5s
   40656    3.0000939e+00   4.772953e+01   0.000000e+00     10s
   44745    3.0000973e+00   1.030560e+02   0.000000e+00     15s
   48270    3.0000998e+00   5.095913e+01   0.000000e+00     20s
   51654    3.0001019e+00   1.293207e+02   0.000000e+00     25s
   54973    3.0000000e+00   0.000000e+00   0.000000e+00     30s

Root relaxation: objective 3.000000e+00, 54973 iterations, 29.84 seconds
Total elapsed time = 70.39s
Total elapsed time = 76.65s

    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%     -   79s

Explored 0 nodes (152664 simplex iterations) in 79.81 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%