Gurobi 5.0.1 (linux64) logging started Sat Nov 17 10:55:51 2012

Optimize a model with 73605 rows, 61256 columns and 280837 nonzeros
Presolve removed 1017 rows and 7163 columns (presolve time = 5s) ...
Presolve removed 1019 rows and 7165 columns
Presolve time: 6.34s
Presolved: 72586 rows, 54091 columns, 270616 nonzeros
Variable types: 0 continuous, 54091 integer (54091 binary)
Found heuristic solution: objective 247.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   34773    3.0000821e+00   2.441379e+01   0.000000e+00      5s
   39085    3.0000856e+00   1.591521e+01   0.000000e+00     10s
   42165    3.0000885e+00   1.377366e+02   0.000000e+00     15s
   45245    3.0000910e+00   3.081447e+01   0.000000e+00     20s
   48017    3.0000930e+00   6.883482e+01   0.000000e+00     25s
   50789    3.0000949e+00   2.611616e+02   0.000000e+00     30s
   53715    3.0000970e+00   5.080339e+01   0.000000e+00     35s
   56333    3.0000986e+00   1.941832e+02   0.000000e+00     40s
   58951    3.0000999e+00   1.158399e+01   0.000000e+00     45s
   61569    3.0001010e+00   9.341376e+00   0.000000e+00     50s
   64033    3.0001017e+00   5.966621e+00   0.000000e+00     55s
   66651    3.0001022e+00   2.003667e+00   0.000000e+00     60s
   69269    3.0001026e+00   1.093554e+00   0.000000e+00     65s
   70810    3.0000000e+00   0.000000e+00   0.000000e+00     68s

Root relaxation: objective 3.000000e+00, 70810 iterations, 67.99 seconds
Total elapsed time = 150.61s
Total elapsed time = 223.53s

    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%     -  226s

Explored 0 nodes (192139 simplex iterations) in 226.23 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%