Gurobi 5.0.1 (linux64) logging started Sat Nov 17 05:41:13 2012

Optimize a model with 65264 rows, 52670 columns and 247318 nonzeros
Presolve removed 1844 rows and 2748 columns (presolve time = 5s) ...
Presolve removed 1846 rows and 2750 columns
Presolve time: 5.07s
Presolved: 63418 rows, 49920 columns, 239436 nonzeros
Variable types: 0 continuous, 49920 integer (49920 binary)
Found heuristic solution: objective 229.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   34464    3.0000952e+00   5.500000e+01   0.000000e+00      5s
   40409    3.0000993e+00   5.279639e+01   0.000000e+00     10s
   44759    3.0001002e+00   2.164536e+01   0.000000e+00     15s
   48094    3.0001040e+00   6.365045e+01   0.000000e+00     20s
   51284    3.0001065e+00   4.116840e+01   0.000000e+00     25s
   54329    3.0001090e+00   1.609251e+01   0.000000e+00     30s
   57664    3.0001119e+00   6.328625e+00   0.000000e+00     35s
   60419    3.0001138e+00   3.252203e+00   0.000000e+00     40s
   61917    3.0000000e+00   0.000000e+00   0.000000e+00     43s

Root relaxation: objective 3.000000e+00, 61917 iterations, 43.31 seconds
Total elapsed time = 111.92s
Total elapsed time = 123.94s

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

     0     0    3.00000    0   50  229.00000    3.00000  98.7%     -  125s
H    0     0                      72.0000000    3.00000  95.8%     -  125s
H    0     0                       4.0000000    3.00000  25.0%     -  125s
H    0     0                       3.0000000    3.00000   0.0%     -  125s

Explored 0 nodes (179398 simplex iterations) in 125.71 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%