Gurobi 5.0.1 (linux64) logging started Sat Nov 17 10:28:35 2012

Optimize a model with 72815 rows, 60762 columns and 277978 nonzeros
Presolve removed 1509 rows and 7628 columns
Presolve time: 1.92s
Presolved: 71306 rows, 53134 columns, 266328 nonzeros
Variable types: 0 continuous, 53134 integer (53134 binary)
Found heuristic solution: objective 246.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   32985    3.0000836e+00   1.920556e+02   0.000000e+00      5s
   38517    3.0000945e+00   1.812632e+02   0.000000e+00     10s
   42036    3.0000975e+00   6.104845e+02   0.000000e+00     15s
   45402    3.0001000e+00   2.323866e+02   0.000000e+00     20s
   48768    3.0001021e+00   2.813045e+02   0.000000e+00     25s
   51828    3.0001039e+00   3.124940e+02   0.000000e+00     30s
   54735    3.0001057e+00   1.075219e+02   0.000000e+00     35s
   57642    3.0001072e+00   3.051374e+01   0.000000e+00     40s
   60396    3.0001086e+00   2.389030e+02   0.000000e+00     45s
   63150    3.0001098e+00   1.057921e+02   0.000000e+00     50s
   65751    3.0001110e+00   5.305276e+02   0.000000e+00     55s
   68352    3.0001124e+00   5.352967e+01   0.000000e+00     60s
   71106    3.0001141e+00   1.088563e+01   0.000000e+00     65s
   73860    3.0001154e+00   9.817971e+00   0.000000e+00     70s
   74782    3.0000000e+00   0.000000e+00   0.000000e+00     72s

Root relaxation: objective 3.000000e+00, 74782 iterations, 71.76 seconds
Total elapsed time = 143.62s
Total elapsed time = 145.03s

    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%     -  147s

Explored 0 nodes (167373 simplex iterations) in 147.13 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%