Gurobi 5.0.1 (linux64) logging started Sat Nov 17 08:57:13 2012

Optimize a model with 73504 rows, 58322 columns and 277630 nonzeros
Presolve removed 1937 rows and 2169 columns (presolve time = 5s) ...
Presolve removed 1939 rows and 2171 columns
Presolve time: 6.15s
Presolved: 71565 rows, 56151 columns, 270047 nonzeros
Variable types: 0 continuous, 56151 integer (56151 binary)
Found heuristic solution: objective 241.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   34007    3.0000932e+00   3.520000e+01   0.000000e+00      5s
   37832    3.0000965e+00   2.037904e+01   0.000000e+00     10s
   40892    3.0000993e+00   1.475386e+01   0.000000e+00     15s
   44258    3.0001021e+00   1.211596e+01   0.000000e+00     20s
   47624    3.0001052e+00   1.379930e+01   0.000000e+00     25s
   50990    3.0001100e+00   2.287342e+01   0.000000e+00     30s
   54050    3.0001137e+00   7.221969e+01   0.000000e+00     35s
   56804    3.0001161e+00   5.074254e+00   0.000000e+00     40s
   59711    3.0001186e+00   2.164504e+00   0.000000e+00     45s
   59938    3.0000000e+00   0.000000e+00   0.000000e+00     45s

Root relaxation: objective 3.000000e+00, 59938 iterations, 45.41 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%     -  107s

Explored 0 nodes (131367 simplex iterations) in 107.38 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%