Gurobi 5.0.1 (linux64) logging started Sat Nov 17 09:35:05 2012

Optimize a model with 72656 rows, 59292 columns and 276046 nonzeros
Presolve removed 1480 rows and 5346 columns (presolve time = 5s) ...
Presolve removed 1482 rows and 5348 columns
Presolve time: 6.25s
Presolved: 71174 rows, 53944 columns, 266469 nonzeros
Variable types: 0 continuous, 53944 integer (53944 binary)
Found heuristic solution: objective 243.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   35661    3.0000874e+00   5.847826e+01   0.000000e+00      5s
   40276    3.0000932e+00   4.810000e+01   0.000000e+00     10s
   43489    3.0000952e+00   7.937689e+01   0.000000e+00     15s
   46396    3.0000973e+00   2.501475e+01   0.000000e+00     20s
   49303    3.0000991e+00   3.906213e+01   0.000000e+00     25s
   52516    3.0001019e+00   7.524535e+00   0.000000e+00     30s
   55576    3.0001038e+00   6.126467e+00   0.000000e+00     35s
   58789    3.0001078e+00   1.420370e+01   0.000000e+00     40s
   61893    3.0000000e+00   0.000000e+00   0.000000e+00     45s

Root relaxation: objective 3.000000e+00, 61893 iterations, 44.85 seconds
Total elapsed time = 88.17s
Total elapsed time = 98.88s
Total elapsed time = 101.20s

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

     0     0    3.00000    0   54  243.00000    3.00000  98.8%     -  105s
H    0     0                       3.0000000    3.00000   0.0%     -  105s

Explored 0 nodes (164039 simplex iterations) in 105.78 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%