Gurobi 5.0.1 (linux64) logging started Sat Nov 17 07:25:43 2012

Optimize a model with 69089 rows, 55460 columns and 261553 nonzeros
Presolve removed 958 rows and 4230 columns (presolve time = 5s) ...
Presolve removed 960 rows and 4232 columns
Presolve time: 5.52s
Presolved: 68129 rows, 51228 columns, 254393 nonzeros
Variable types: 0 continuous, 51228 integer (51228 binary)
Found heuristic solution: objective 235.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   40240    3.0000787e+00   2.280000e+02   0.000000e+00      5s
   47236    3.0001033e+00   2.987542e+01   0.000000e+00     10s
   50386    3.0001057e+00   1.869107e+01   0.000000e+00     15s
   53536    3.0001081e+00   5.044426e+01   0.000000e+00     20s
   56536    3.0001104e+00   2.248690e+01   0.000000e+00     25s
   59817    3.0001119e+00   0.000000e+00   0.000000e+00     30s

Root relaxation: objective 3.000000e+00, 59817 iterations, 30.13 seconds
Total elapsed time = 61.57s
Total elapsed time = 67.50s
Total elapsed time = 72.89s

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

     0     0    3.00000    0   87  235.00000    3.00000  98.7%     -   75s
H    0     0                       3.0000000    3.00000   0.0%     -   75s

Explored 0 nodes (193687 simplex iterations) in 75.35 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%