Gurobi 5.0.1 (linux64) logging started Sat Nov 17 11:12:49 2012

Optimize a model with 77871 rows, 61752 columns and 294126 nonzeros
Presolve removed 1009 rows and 4216 columns (presolve time = 5s) ...
Presolve removed 1011 rows and 4218 columns
Presolve time: 7.18s
Presolved: 76860 rows, 57534 columns, 286810 nonzeros
Variable types: 0 continuous, 57534 integer (57534 binary)
Found heuristic solution: objective 248.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   35751    3.0000953e+00   2.760000e+01   0.000000e+00      5s
   39227    3.0000994e+00   5.983333e+01   0.000000e+00     10s
   42703    3.0001016e+00   8.889428e+01   0.000000e+00     15s
   45231    3.0001034e+00   1.604122e+02   0.000000e+00     20s
   47759    3.0001050e+00   3.963347e+01   0.000000e+00     25s
   50445    3.0001080e+00   9.445652e+01   0.000000e+00     30s
   53289    3.0001108e+00   2.650000e+02   0.000000e+00     35s
   55975    3.0001138e+00   7.100455e+00   0.000000e+00     40s
   58503    3.0001169e+00   5.330000e+02   0.000000e+00     45s
   61031    3.0001196e+00   6.814484e+01   0.000000e+00     50s
   63401    3.0001213e+00   4.494472e+00   0.000000e+00     55s
   65129    3.0000000e+00   0.000000e+00   0.000000e+00     59s

Root relaxation: objective 3.000000e+00, 65129 iterations, 58.88 seconds
Total elapsed time = 147.78s

    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%     -  149s

Explored 0 nodes (128640 simplex iterations) in 149.35 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%