Gurobi 5.0.1 (linux64) logging started Sat Nov 17 09:24:49 2012

Optimize a model with 76713 rows, 58806 columns and 287736 nonzeros
Presolve removed 1468 rows and 3872 columns (presolve time = 5s) ...
Presolve removed 1470 rows and 3874 columns
Presolve time: 6.62s
Presolved: 75243 rows, 54932 columns, 279612 nonzeros
Variable types: 0 continuous, 54932 integer (54932 binary)
Found heuristic solution: objective 242.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   29426    3.0000942e+00   2.833333e+01   0.000000e+00      5s
   32880    3.0000968e+00   1.362250e+02   0.000000e+00     10s
   35549    3.0000986e+00   1.220634e+02   0.000000e+00     15s
   38375    3.0001009e+00   2.824519e+01   0.000000e+00     20s
   41515    3.0001035e+00   1.389569e+01   0.000000e+00     25s
   44655    3.0001065e+00   1.518473e+01   0.000000e+00     30s
   47952    3.0001092e+00   2.574766e+01   0.000000e+00     35s
   51092    3.0001133e+00   2.577215e+01   0.000000e+00     40s
   54232    3.0001188e+00   2.905949e+01   0.000000e+00     45s
   56671    3.0000000e+00   0.000000e+00   0.000000e+00     49s

Root relaxation: objective 3.000000e+00, 56671 iterations, 48.84 seconds
Total elapsed time = 154.04s
Total elapsed time = 157.48s
Total elapsed time = 162.66s

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

     0     0    3.00000    0  649  242.00000    3.00000  98.8%     -  165s
H    0     0                       4.0000000    3.00000  25.0%     -  166s
H    0     0                       3.0000000    3.00000   0.0%     -  166s

Explored 0 nodes (195589 simplex iterations) in 166.73 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%