Gurobi 5.0.1 (linux64) logging started Sat Nov 17 07:37:16 2012

Optimize a model with 71979 rows, 55932 columns and 270690 nonzeros
Presolve removed 1899 rows and 2596 columns (presolve time = 5s) ...
Presolve removed 1901 rows and 2598 columns
Presolve time: 5.93s
Presolved: 70078 rows, 53334 columns, 262780 nonzeros
Variable types: 0 continuous, 53334 integer (53334 binary)
Found heuristic solution: objective 236.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   33735    3.0000917e+00   3.565217e+01   0.000000e+00      5s
   41068    3.0000954e+00   1.137076e+02   0.000000e+00     10s
   46388    3.0000974e+00   3.398987e+01   0.000000e+00     15s
   50036    3.0000983e+00   5.393143e+01   0.000000e+00     20s
   53684    3.0000992e+00   5.385584e+00   0.000000e+00     25s
   56876    3.0000998e+00   4.449237e+00   0.000000e+00     30s
   60180    3.0000000e+00   0.000000e+00   0.000000e+00     35s

Root relaxation: objective 3.000000e+00, 60180 iterations, 34.92 seconds
Total elapsed time = 85.15s
Total elapsed time = 90.58s
Total elapsed time = 105.96s
Total elapsed time = 110.61s

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

     0     0    3.00000    0   81  236.00000    3.00000  98.7%     -  111s
H    0     0                       3.0000000    3.00000   0.0%     -  111s

Explored 0 nodes (188729 simplex iterations) in 111.60 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%