Gurobi 5.0.1 (linux64) logging started Sat Nov 17 03:55:07 2012

Optimize a model with 55999 rows, 50400 columns and 217278 nonzeros
Presolve removed 920 rows and 4930 columns
Presolve time: 1.52s
Presolved: 55079 rows, 45470 columns, 209618 nonzeros
Variable types: 0 continuous, 45470 integer (45470 binary)
Found heuristic solution: objective 224.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   32991    3.0000828e+00   1.768676e+02   0.000000e+00      5s
   38295    3.0000883e+00   1.192054e+02   0.000000e+00     10s
   41967    3.0000916e+00   3.073666e+01   0.000000e+00     15s
   45367    3.0000941e+00   2.039328e+01   0.000000e+00     20s
   48767    3.0000961e+00   4.815051e+02   0.000000e+00     25s
   52439    3.0000986e+00   2.691163e+01   0.000000e+00     30s
   55703    3.0001006e+00   1.121673e+01   0.000000e+00     35s
   59239    3.0001037e+00   3.455410e+01   0.000000e+00     40s
   62522    3.0000000e+00   0.000000e+00   0.000000e+00     45s

Root relaxation: objective 3.000000e+00, 62522 iterations, 44.93 seconds
Total elapsed time = 72.01s
Total elapsed time = 86.84s
Total elapsed time = 90.16s

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

     0     0    3.00000    0  625  224.00000    3.00000  98.7%     -   93s
H    0     0                       3.0000000    3.00000   0.0%     -   94s

Explored 0 nodes (157299 simplex iterations) in 94.03 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%