Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:46:02 2013 Optimize a model with 1050 rows, 25650 columns and 52000 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.29s Presolved: 950 rows, 25550 columns, 51650 nonzeros Variable types: 25350 continuous, 200 integer (200 binary) Root relaxation: objective 1.959342e+05, 1879 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 0 0 196095.435 0 3 - 196095.435 - - 0s 0 0 196120.722 0 3 - 196120.722 - - 0s 0 0 196121.594 0 3 - 196121.594 - - 0s 0 0 196122.375 0 3 - 196122.375 - - 0s 0 0 196128.542 0 3 - 196128.542 - - 0s 0 0 196130.362 0 3 - 196130.362 - - 0s 0 0 196130.548 0 3 - 196130.548 - - 1s 0 0 196139.447 0 3 - 196139.447 - - 1s 0 0 196140.908 0 3 - 196140.908 - - 1s 0 0 196140.908 0 3 - 196140.908 - - 1s 0 0 196141.121 0 3 - 196141.121 - - 1s 0 0 196141.121 0 3 - 196141.121 - - 1s H 0 0 197545.93233 196141.121 0.71% - 1s 0 2 196148.999 0 3 197545.932 196148.999 0.71% - 1s * 22 9 19 196586.54661 196434.722 0.08% 33.3 2s H 27 4 196562.61813 196529.460 0.02% 27.8 2s Cutting planes: Flow cover: 16 Explored 37 nodes (3211 simplex iterations) in 2.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.965626181321e+05, best bound 1.965555069532e+05, gap 0.0036%