Gurobi 5.0.1 (linux64) logging started Sat Nov 17 11:22:48 2012

Optimize a model with 78863 rows, 61752 columns and 297102 nonzeros
Presolve removed 1018 rows and 6448 columns (presolve time = 5s) ...
Presolve removed 1020 rows and 6450 columns
Presolve time: 6.87s
Presolved: 77843 rows, 55302 columns, 287546 nonzeros
Variable types: 0 continuous, 55302 integer (55302 binary)
Found heuristic solution: objective 248.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   35417    3.0001285e+00   7.941111e+02   0.000000e+00      5s
   39215    3.0001491e+00   1.080000e+02   0.000000e+00     10s
   42889    3.0001624e+00   5.118182e+01   0.000000e+00     15s
   48772    3.0001747e+00   2.769167e+02   0.000000e+00     20s
   51157    3.0001800e+00   4.600444e+01   0.000000e+00     25s
   53542    3.0001833e+00   1.790979e+01   0.000000e+00     30s
   55927    3.0001868e+00   1.313500e+02   0.000000e+00     35s
   58312    3.0001898e+00   2.147942e+01   0.000000e+00     40s
   60697    3.0001924e+00   1.349178e+03   0.000000e+00     45s
   62923    3.0001948e+00   2.617210e+01   0.000000e+00     50s
   65308    3.0001974e+00   1.360000e+02   0.000000e+00     55s
   67534    3.0001993e+00   2.102438e+02   0.000000e+00     60s
   69919    3.0002008e+00   1.814737e+01   0.000000e+00     65s
   72304    3.0002018e+00   2.621218e-01   0.000000e+00     70s
   73501    3.0000000e+00   0.000000e+00   0.000000e+00     72s

Root relaxation: objective 3.000000e+00, 73501 iterations, 72.35 seconds
Total elapsed time = 144.30s

    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%     -  146s

Explored 0 nodes (138536 simplex iterations) in 146.78 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%