Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:45:45 2013 Optimize a model with 1000 rows, 26050 columns and 53350 nonzeros Presolve removed 50 rows and 350 columns Presolve time: 0.26s Presolved: 950 rows, 25700 columns, 52850 nonzeros Variable types: 25550 continuous, 150 integer (150 binary) Root relaxation: objective 1.749223e+05, 1901 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 174922.321 0 2 - 174922.321 - - 0s H 0 0 212268.43955 174922.321 17.6% - 0s 0 0 174946.040 0 2 212268.440 174946.040 17.6% - 0s 0 0 174953.455 0 2 212268.440 174953.455 17.6% - 0s 0 0 174958.675 0 2 212268.440 174958.675 17.6% - 0s 0 0 174958.675 0 2 212268.440 174958.675 17.6% - 0s 0 0 174958.675 0 2 212268.440 174958.675 17.6% - 1s 0 2 174961.242 0 2 212268.440 174961.242 17.6% - 1s * 21 9 21 175857.53946 175061.091 0.45% 17.0 1s Cutting planes: Flow cover: 6 Explored 35 nodes (3220 simplex iterations) in 1.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.758575394634e+05, best bound 1.758575394634e+05, gap 0.0%