Gurobi 5.0.1 (linux64) logging started Sat Nov 17 08:33:36 2012

Optimize a model with 68639 rows, 57840 columns and 262558 nonzeros
Presolve removed 505 rows and 5522 columns
Presolve time: 1.89s
Presolved: 68134 rows, 52318 columns, 255270 nonzeros
Variable types: 0 continuous, 52318 integer (52318 binary)
Found heuristic solution: objective 240.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   38300    3.0001017e+00   8.563333e+02   0.000000e+00      5s
   46019    3.0001205e+00   5.103077e+02   0.000000e+00     10s
   53845    3.0001332e+00   1.086000e+03   0.000000e+00     15s
   61111    3.0001417e+00   1.078750e+02   0.000000e+00     20s
   64951    3.0001479e+00   2.234500e+02   0.000000e+00     25s
   68851    3.0001532e+00   2.738542e+02   0.000000e+00     30s
   72753    3.0001578e+00   1.646800e+03   0.000000e+00     35s
   76054    3.0001618e+00   3.700000e+01   0.000000e+00     40s
   78879    3.0001628e+00   0.000000e+00   0.000000e+00     45s

Root relaxation: objective 3.000000e+00, 78879 iterations, 45.10 seconds
Total elapsed time = 72.67s
Total elapsed time = 76.47s

    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%     -   77s

Explored 0 nodes (150722 simplex iterations) in 77.18 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%