Gurobi 5.0.1 (linux64) logging started Sat Nov 17 07:22:35 2012

Optimize a model with 68619 rows, 55460 columns and 260143 nonzeros
Presolve removed 957 rows and 3995 columns (presolve time = 5s) ...
Presolve removed 959 rows and 3997 columns
Presolve time: 5.32s
Presolved: 67660 rows, 51463 columns, 253222 nonzeros
Variable types: 0 continuous, 51463 integer (51463 binary)
Found heuristic solution: objective 235.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   38243    3.0001049e+00   5.845000e+02   0.000000e+00      5s
   52606    3.0001719e+00   2.784411e+02   0.000000e+00     10s
   55906    3.0001787e+00   1.808073e+02   0.000000e+00     15s
   59056    3.0001841e+00   3.551220e+01   0.000000e+00     20s
   62356    3.0001924e+00   8.178474e+00   0.000000e+00     25s
   66106    3.0002100e+00   1.558537e+00   0.000000e+00     30s
   67202    3.0000000e+00   0.000000e+00   0.000000e+00     32s

Root relaxation: objective 3.000000e+00, 67202 iterations, 31.96 seconds

    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%     -   79s

Explored 0 nodes (104876 simplex iterations) in 79.08 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%