Gurobi 5.0.1 (linux64) logging started Sat Nov 17 02:51:10 2012

Optimize a model with 60499 rows, 48620 columns and 229018 nonzeros
Presolve removed 882 rows and 2 columns
Presolve time: 4.41s
Presolved: 59837 rows, 48618 columns, 274676 nonzeros
Variable types: 0 continuous, 48618 integer (48618 binary)
Found heuristic solution: objective 220.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   29594    3.0000893e+00   2.296203e+01   0.000000e+00      5s
   33712    3.0000915e+00   4.800964e+01   0.000000e+00     10s
   36694    3.0000943e+00   1.767363e+02   0.000000e+00     15s
   39960    3.0000972e+00   1.432862e+01   0.000000e+00     20s
   43084    3.0001012e+00   1.662846e+01   0.000000e+00     25s
   46492    3.0001077e+00   8.079064e+00   0.000000e+00     30s
   49045    3.0000000e+00   0.000000e+00   0.000000e+00     33s

Root relaxation: objective 3.000000e+00, 49045 iterations, 32.76 seconds
Total elapsed time = 87.05s

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

     0     0    3.00000    0 2925  220.00000    3.00000  98.6%     -   90s
H    0     0                      46.0000000    3.00000  93.5%     -   95s
H    0     0                      38.0000000    3.00000  92.1%     -   95s
*    0     0               0       3.0000000    3.00000   0.0%     -   96s

Cutting planes:
  Gomory: 1
  Zero half: 6

Explored 0 nodes (132250 simplex iterations) in 96.18 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%