Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:21:36 2012

Optimize a model with 55805 rows, 45582 columns and 211933 nonzeros
Presolve removed 872 rows and 3836 columns
Presolve time: 4.02s
Presolved: 54933 rows, 41746 columns, 205453 nonzeros
Variable types: 0 continuous, 41746 integer (41746 binary)
Found heuristic solution: objective 213.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   30564    3.0000751e+00   2.663636e+01   0.000000e+00      5s
   35596    3.0000786e+00   1.432001e+03   0.000000e+00     10s
   39268    3.0000817e+00   1.409519e+01   0.000000e+00     15s
   42804    3.0000844e+00   1.158212e+01   0.000000e+00     20s
   46340    3.0000877e+00   1.571000e+01   0.000000e+00     25s
   49876    3.0000915e+00   7.872000e+00   0.000000e+00     30s
   52818    3.0000000e+00   0.000000e+00   0.000000e+00     34s

Root relaxation: objective 3.000000e+00, 52818 iterations, 33.70 seconds
Total elapsed time = 67.45s
Total elapsed time = 70.96s

    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%     -   75s

Explored 0 nodes (150593 simplex iterations) in 75.02 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%