Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:33:34 2013 Optimize a model with 85652 rows, 84732 columns and 338652 nonzeros Presolve removed 5177 rows and 0 columns Presolve time: 0.59s Presolved: 80475 rows, 84732 columns, 328298 nonzeros Variable types: 84640 continuous, 92 integer (92 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 18982 1.1099353e+05 1.479074e+02 0.000000e+00 5s 19062 1.1099961e+05 0.000000e+00 0.000000e+00 5s Root relaxation: objective 1.109996e+05, 19062 iterations, 5.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 110999.608 0 5 - 110999.608 - - 5s H 0 0 117578.00000 110999.608 5.59% - 6s H 0 0 111874.00000 110999.608 0.78% - 7s 0 0 110999.687 0 7 111874.000 110999.687 0.78% - 7s 0 0 110999.687 0 7 111874.000 110999.687 0.78% - 8s 0 0 110999.687 0 7 111874.000 110999.687 0.78% - 9s 0 2 111022.779 0 7 111874.000 111022.779 0.76% - 13s H 3 3 111418.29255 111124.293 0.26% 51.0 13s H 6 6 111247.00000 111124.293 0.11% 99.0 14s H 7 6 111218.00000 111124.293 0.08% 90.3 14s * 8 4 7 111189.00000 111124.293 0.06% 84.6 14s Cutting planes: Gomory: 2 Flow cover: 4 Explored 15 nodes (20066 simplex iterations) in 14.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.111890000000e+05, best bound 1.111890000000e+05, gap 0.0%