Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:16:25 2013

Optimize a model with 76734 rows, 75864 columns and 302934 nonzeros
Presolve removed 87 rows and 0 columns
Presolve time: 0.36s
Presolved: 76647 rows, 75864 columns, 302847 nonzeros
Variable types: 75777 continuous, 87 integer (87 binary)

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8377    7.7263715e+04   1.644005e+05   0.000000e+00      5s
   10273    7.8577254e+04   4.190788e+03   0.000000e+00     10s
   10853    7.8627154e+04   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 7.862715e+04, 10853 iterations, 11.80 seconds

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

     0     0 78627.1544    0   69          - 78627.1544     -      -   12s
H    0     0                    146196.00000 78627.1544  46.2%     -   18s
     0     0 112452.276    0   16 146196.000 112452.276  23.1%     -   39s
H    0     0                    131183.00000 112452.276  14.3%     -   40s
     0     0 120226.468    0   10 131183.000 120226.468  8.35%     -   45s
H    0     0                    127867.00000 120226.468  5.98%     -   45s
     0     0 121405.021    0    5 127867.000 121405.021  5.05%     -   47s
H    0     0                    126252.99035 121405.021  3.84%     -   47s
H    0     0                    124854.00000 121405.021  2.76%     -   47s
     0     0 121607.974    0    4 124854.000 121607.974  2.60%     -   48s
H    0     0                    124834.00000 121607.974  2.58%     -   48s
H    0     0                    122178.00000 121607.974  0.47%     -   50s
     0     2 121617.123    0    4 122178.000 121617.123  0.46%     -   52s
H    3     3                    121815.23636 121657.174  0.13%   126   52s
H    4     4                    121750.00000 121657.174  0.08%   107   53s
*    8     3               6    121690.00000 121657.174  0.03%  87.0   53s

Cutting planes:
  Gomory: 1
  Implied bound: 85

Explored 12 nodes (29274 simplex iterations) in 53.58 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.216900000000e+05, best bound 1.216900000000e+05, gap 0.0%