Gurobi 5.0.1 (linux64) logging started Sat Nov 17 02:20:20 2012

Optimize a model with 54281 rows, 47742 columns and 209496 nonzeros
Presolve removed 874 rows and 2 columns
Presolve time: 1.33s
Presolved: 53625 rows, 47740 columns, 254350 nonzeros
Variable types: 0 continuous, 47740 integer (47740 binary)
Found heuristic solution: objective 218.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   30371    3.0000810e+00   9.681818e+00   0.000000e+00      5s
   34961    3.0000838e+00   9.356625e+01   0.000000e+00     10s
   36866    3.0000000e+00   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 3.000000e+00, 36866 iterations, 12.03 seconds
Total elapsed time = 31.35s
Total elapsed time = 35.31s

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

     0     0    3.00000    0   92  218.00000    3.00000  98.6%     -   38s
H    0     0                       3.0000000    3.00000   0.0%     -   38s

Explored 0 nodes (119148 simplex iterations) in 38.89 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%