Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:13:41 2013 Optimize a model with 1400 rows, 30500 columns and 96250 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.13s Presolved: 1350 rows, 30450 columns, 91200 nonzeros Variable types: 30100 continuous, 350 integer (350 binary) Root relaxation: objective 1.626233e+05, 2237 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 162623.326 0 15 - 162623.326 - - 0s 0 0 162645.310 0 15 - 162645.310 - - 0s 0 0 162649.159 0 15 - 162649.159 - - 0s 0 0 162649.958 0 15 - 162649.958 - - 0s 0 0 162650.017 0 15 - 162650.017 - - 0s 0 0 162650.645 0 15 - 162650.645 - - 0s 0 0 162650.684 0 17 - 162650.684 - - 0s 0 0 162651.002 0 17 - 162651.002 - - 0s 0 0 162651.025 0 17 - 162651.025 - - 1s 0 0 162651.128 0 16 - 162651.128 - - 1s 0 0 162651.647 0 17 - 162651.647 - - 1s 0 0 162651.868 0 17 - 162651.868 - - 1s 0 0 162651.918 0 17 - 162651.918 - - 1s 0 0 162651.998 0 17 - 162651.998 - - 1s 0 0 162651.998 0 17 - 162651.998 - - 1s H 0 0 164674.73366 162651.998 1.23% - 1s 0 2 162693.898 0 17 164674.734 162693.898 1.20% - 2s H 27 11 162918.18485 162783.427 0.08% 13.0 2s Cutting planes: Flow cover: 14 Explored 73 nodes (3741 simplex iterations) in 3.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.629181848492e+05, best bound 1.629050904198e+05, gap 0.0080%