Gurobi 5.0.1 (linux64) logging started Wed Apr 24 09:23:54 2013 Optimize a model with 99099 rows, 98109 columns and 392139 nonzeros Presolve removed 4836 rows and 0 columns Presolve time: 0.73s Presolved: 94263 rows, 98109 columns, 382467 nonzeros Variable types: 98010 continuous, 99 integer (99 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 19695 1.3288762e+05 8.505829e+02 0.000000e+00 5s 19946 1.3289922e+05 0.000000e+00 0.000000e+00 5s Root relaxation: objective 1.328992e+05, 19946 iterations, 5.26 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 132899.219 0 3 - 132899.219 - - 6s H 0 0 137028.00000 132899.219 3.01% - 6s 0 0 132903.263 0 6 137028.000 132903.263 3.01% - 7s 0 0 132903.319 0 6 137028.000 132903.319 3.01% - 8s H 0 0 135364.75862 132903.319 1.82% - 11s H 0 0 134484.00000 132903.319 1.18% - 12s 0 2 132903.475 0 6 134484.000 132903.475 1.18% - 13s 4 6 133194.000 3 1 134484.000 133063.396 1.06% 596 15s H 20 20 134280.18182 133063.396 0.91% 309 19s 21 22 133668.333 16 1 134280.182 133063.396 0.91% 306 20s H 28 21 134092.00000 133063.396 0.77% 246 21s 50 32 133500.955 10 1 134092.000 133143.945 0.71% 193 25s H 56 33 133874.63636 133143.945 0.55% 180 25s * 62 32 21 133716.00000 133143.945 0.43% 174 26s * 80 37 12 133709.00000 133157.999 0.41% 166 27s H 85 4 133294.15862 133233.621 0.05% 165 28s * 88 3 8 133247.00000 133242.547 0.00% 160 28s Cutting planes: Gomory: 2 Flow cover: 6 Explored 89 nodes (34134 simplex iterations) in 28.86 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.332470000000e+05, best bound 1.332425468750e+05, gap 0.0033%