Gurobi 5.0.1 (linux64) logging started Wed Apr 24 10:26:14 2013 Optimize a model with 122210 rows, 121110 columns and 484110 nonzeros Presolve removed 9744 rows and 0 columns Presolve time: 0.99s Presolved: 112466 rows, 121110 columns, 464622 nonzeros Variable types: 121000 continuous, 110 integer (110 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 20529 1.5514699e+05 9.835091e+03 0.000000e+00 5s 24119 1.6070181e+05 0.000000e+00 0.000000e+00 7s Root relaxation: objective 1.607018e+05, 24119 iterations, 6.79 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 160701.811 0 3 - 160701.811 - - 8s H 0 0 171159.00000 160701.811 6.11% - 8s 0 0 160703.135 0 5 171159.000 160703.135 6.11% - 9s 0 0 160703.135 0 5 171159.000 160703.135 6.11% - 10s H 0 0 168954.57115 160703.135 4.88% - 14s H 0 0 168690.40774 160703.135 4.73% - 14s H 0 0 164305.71055 160703.135 2.19% - 14s H 0 0 163588.06838 160703.135 1.76% - 14s 0 2 160712.796 0 5 163588.068 160712.796 1.76% - 17s H 4 4 163489.63811 160851.464 1.61% 280 19s 4 6 161229.861 3 2 163489.638 160864.146 1.61% 512 20s H 6 6 163291.25862 160864.146 1.49% 348 20s H 8 6 161130.14865 160864.146 0.17% 319 21s 24 1 cutoff 5 161130.149 161056.217 0.05% 260 25s * 26 0 8 161112.00000 161112.000 0.0% 245 25s Cutting planes: Gomory: 2 Flow cover: 1 Explored 27 nodes (30543 simplex iterations) in 25.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.611120000000e+05, best bound 1.611120000000e+05, gap 0.0%