Gurobi 5.0.1 (linux64) logging started Sat Nov 17 05:29:17 2012

Optimize a model with 61600 rows, 52670 columns and 236326 nonzeros
Presolve removed 484 rows and 5498 columns
Presolve time: 1.59s
Presolved: 61116 rows, 47172 columns, 229151 nonzeros
Variable types: 0 continuous, 47172 integer (47172 binary)
Found heuristic solution: objective 229.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27723    3.0000867e+00   3.662500e+01   0.000000e+00      5s
   31584    3.0000895e+00   2.248188e+02   0.000000e+00     10s
   35302    3.0000929e+00   1.735141e+01   0.000000e+00     15s
   39020    3.0000962e+00   2.750091e+01   0.000000e+00     20s
   42738    3.0001007e+00   1.553014e+01   0.000000e+00     25s
   45784    3.0000000e+00   0.000000e+00   0.000000e+00     28s

Root relaxation: objective 3.000000e+00, 45784 iterations, 28.36 seconds
Total elapsed time = 74.52s
Total elapsed time = 77.14s
Total elapsed time = 85.14s
Total elapsed time = 94.68s

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

     0     0    3.00000    0 1540  229.00000    3.00000  98.7%     -   99s
H    0     0                       3.0000000    3.00000   0.0%     -  102s

Explored 0 nodes (169139 simplex iterations) in 102.47 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%