Gurobi 5.0.1 (linux64) logging started Wed Apr 24 09:26:37 2013 Optimize a model with 99099 rows, 98109 columns and 392139 nonzeros Presolve removed 1986 rows and 0 columns Presolve time: 0.73s Presolved: 97113 rows, 98109 columns, 388167 nonzeros Variable types: 98010 continuous, 99 integer (99 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 17678 1.2491955e+05 6.465152e+03 0.000000e+00 5s 21601 1.2996155e+05 0.000000e+00 0.000000e+00 7s Root relaxation: objective 1.299616e+05, 21601 iterations, 7.22 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 129961.551 0 7 - 129961.551 - - 8s H 0 0 145456.00000 129961.551 10.7% - 8s 0 0 129961.836 0 9 145456.000 129961.836 10.7% - 9s 0 0 129962.431 0 9 145456.000 129962.431 10.7% - 10s 0 0 129962.562 0 9 145456.000 129962.562 10.7% - 11s 0 0 129962.562 0 9 145456.000 129962.562 10.7% - 12s H 0 0 131093.00000 129962.562 0.86% - 15s 0 2 129964.679 0 9 131093.000 129964.679 0.86% - 18s 2 4 130223.226 1 9 131093.000 130223.226 0.66% 492 20s H 27 12 130790.00000 130367.173 0.32% 232 25s 82 39 130692.500 10 1 130790.000 130495.318 0.23% 150 30s 150 49 130675.751 12 2 130790.000 130612.988 0.14% 126 35s * 160 33 11 130733.00000 130630.870 0.08% 122 35s * 179 8 7 130656.00000 130635.795 0.02% 117 36s Cutting planes: Gomory: 2 Flow cover: 5 Explored 183 nodes (42674 simplex iterations) in 36.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.306560000000e+05, best bound 1.306457296087e+05, gap 0.0079%