Gurobi 5.0.1 (linux64) logging started Sat Nov 17 08:03:45 2012

Optimize a model with 68305 rows, 56882 columns and 260608 nonzeros
Presolve removed 969 rows and 4046 columns (presolve time = 5s) ...
Presolve removed 971 rows and 4048 columns
Presolve time: 5.53s
Presolved: 67334 rows, 52834 columns, 253616 nonzeros
Variable types: 0 continuous, 52834 integer (52834 binary)
Found heuristic solution: objective 238.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   37343    3.0000844e+00   4.188235e+01   0.000000e+00      5s
   42286    3.0000917e+00   4.551079e+02   0.000000e+00     10s
   45266    3.0000940e+00   1.354902e+02   0.000000e+00     15s
   48395    3.0000961e+00   8.959913e+01   0.000000e+00     20s
   51375    3.0000984e+00   2.683786e+01   0.000000e+00     25s
   54504    3.0001002e+00   3.183375e+01   0.000000e+00     30s
   57484    3.0001022e+00   3.780034e+01   0.000000e+00     35s
   60315    3.0001039e+00   2.727205e+01   0.000000e+00     40s
   63295    3.0001059e+00   8.723947e+00   0.000000e+00     45s
   66275    3.0001077e+00   2.025497e+01   0.000000e+00     50s
   69404    3.0001099e+00   2.139251e+01   0.000000e+00     55s
   72384    3.0001141e+00   1.414557e+01   0.000000e+00     60s
   74698    3.0000000e+00   0.000000e+00   0.000000e+00     64s

Root relaxation: objective 3.000000e+00, 74698 iterations, 63.63 seconds
Total elapsed time = 112.19s
Total elapsed time = 116.34s

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

     0     0    3.00000    0   58  238.00000    3.00000  98.7%     -  116s
H    0     0                       3.0000000    3.00000   0.0%     -  116s

Explored 0 nodes (158012 simplex iterations) in 116.68 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%