Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:17:50 2013 Optimize a model with 800 rows, 25350 columns and 50950 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.14s Presolved: 750 rows, 25300 columns, 50750 nonzeros Variable types: 25250 continuous, 50 integer (50 binary) Root relaxation: objective 1.959342e+05, 2167 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 195934.242 0 3 - 195934.242 - - 0s H 0 0 205356.99111 195934.242 4.59% - 0s 0 0 196095.435 0 3 205356.991 196095.435 4.51% - 0s 0 0 196129.385 0 3 205356.991 196129.385 4.49% - 0s 0 0 196132.163 0 4 205356.991 196132.163 4.49% - 0s 0 0 196132.163 0 4 205356.991 196132.163 4.49% - 0s 0 0 196134.882 0 3 205356.991 196134.882 4.49% - 0s 0 0 196136.744 0 3 205356.991 196136.744 4.49% - 0s 0 0 196139.837 0 3 205356.991 196139.837 4.49% - 0s 0 0 196141.736 0 3 205356.991 196141.736 4.49% - 0s 0 0 196142.447 0 3 205356.991 196142.447 4.49% - 0s 0 0 196143.137 0 3 205356.991 196143.137 4.49% - 1s 0 0 196144.200 0 3 205356.991 196144.200 4.49% - 1s 0 0 196145.031 0 3 205356.991 196145.031 4.49% - 1s 0 0 196145.278 0 3 205356.991 196145.278 4.49% - 1s 0 0 196147.684 0 3 205356.991 196147.684 4.48% - 1s 0 0 196148.162 0 3 205356.991 196148.162 4.48% - 1s 0 0 196148.472 0 3 205356.991 196148.472 4.48% - 1s 0 0 196149.177 0 4 205356.991 196149.177 4.48% - 1s 0 0 196149.391 0 4 205356.991 196149.391 4.48% - 1s 0 0 196150.800 0 4 205356.991 196150.800 4.48% - 1s 0 0 196152.945 0 3 205356.991 196152.945 4.48% - 1s 0 0 196153.716 0 3 205356.991 196153.716 4.48% - 1s 0 0 196154.937 0 3 205356.991 196154.937 4.48% - 1s 0 0 196155.377 0 3 205356.991 196155.377 4.48% - 1s 0 0 196155.377 0 3 205356.991 196155.377 4.48% - 2s 0 0 196155.473 0 3 205356.991 196155.473 4.48% - 2s 0 0 196155.473 0 3 205356.991 196155.473 4.48% - 2s 0 2 196163.341 0 3 205356.991 196163.341 4.48% - 2s * 15 6 13 196570.65000 196391.058 0.09% 48.7 3s * 22 3 4 196555.34079 196391.058 0.08% 44.6 3s Cutting planes: Flow cover: 23 Explored 26 nodes (4660 simplex iterations) in 3.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.965553407861e+05, best bound 1.965553407861e+05, gap 0.0%