Gurobi 5.0.1 (linux64) logging started Sat Nov 17 08:05:52 2012

Optimize a model with 70685 rows, 56882 columns and 267748 nonzeros
Presolve removed 967 rows and 3570 columns (presolve time = 5s) ...
Presolve removed 969 rows and 3572 columns
Presolve time: 5.49s
Presolved: 69716 rows, 53310 columns, 261212 nonzeros
Variable types: 0 continuous, 53310 integer (53310 binary)
Found heuristic solution: objective 238.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27883    3.0000916e+00   3.650000e+01   0.000000e+00      5s
   32291    3.0000938e+00   5.500887e+01   0.000000e+00     10s
   35635    3.0000963e+00   1.639529e+01   0.000000e+00     15s
   38827    3.0000982e+00   2.044723e+01   0.000000e+00     20s
   42171    3.0001007e+00   5.353427e+00   0.000000e+00     25s
   45211    3.0001025e+00   5.110511e+00   0.000000e+00     30s
   48099    3.0001043e+00   3.855728e+00   0.000000e+00     35s
   51139    3.0001061e+00   1.027161e+01   0.000000e+00     40s
   51449    3.0000000e+00   0.000000e+00   0.000000e+00     41s

Root relaxation: objective 3.000000e+00, 51449 iterations, 40.79 seconds

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

*    0     0               0       3.0000000    3.00000   0.0%     -   46s

Explored 0 nodes (51449 simplex iterations) in 46.49 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%