Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:07:05 2013

Optimize a model with 2328 rows, 80943 columns and 4875356 nonzeros
Presolve removed 25 rows and 0 columns (presolve time = 5s) ...
Presolve removed 25 rows and 0 columns
Presolve time: 5.82s
Presolved: 2303 rows, 80943 columns, 4874123 nonzeros
Variable types: 0 continuous, 80943 integer (80943 binary)
Found heuristic solution: objective 42328.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    6809    3.1390874e+04   1.391707e+03   0.000000e+00      5s
   10505    3.2030369e+04   1.862367e+04   0.000000e+00     10s
   13585    3.2245172e+04   1.290861e+03   0.000000e+00     15s
   16049    3.2319017e+04   1.517423e+03   0.000000e+00     20s
   18051    3.2351075e+04   3.758532e+03   0.000000e+00     25s
   20207    3.2375531e+04   5.550740e+03   0.000000e+00     30s
   21901    3.2383328e+04   2.016856e+02   0.000000e+00     35s
   23287    3.2388000e+04   1.341719e+02   0.000000e+00     40s
   23999    3.2388000e+04   0.000000e+00   0.000000e+00     44s

Root relaxation: objective 3.238800e+04, 23999 iterations, 44.35 seconds

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

*    0     0               0    32388.000000 32388.0000   0.0%     -   50s

Explored 0 nodes (23999 simplex iterations) in 50.97 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.238800000000e+04, best bound 3.238800000000e+04, gap 0.0%