Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:25:33 2013 Optimize a model with 1600 rows, 100800 columns and 201700 nonzeros Presolve removed 200 rows and 300 columns Presolve time: 0.41s Presolved: 1400 rows, 100500 columns, 201000 nonzeros Variable types: 100400 continuous, 100 integer (100 binary) Root relaxation: objective 7.918217e+05, 7060 iterations, 0.76 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 791821.709 0 2 - 791821.709 - - 1s H 0 0 810636.36370 791821.709 2.32% - 1s H 0 0 799678.01306 791821.709 0.98% - 2s 0 0 791887.369 0 2 799678.013 791887.369 0.97% - 2s 0 0 791950.439 0 3 799678.013 791950.439 0.97% - 2s 0 0 791952.811 0 2 799678.013 791952.811 0.97% - 3s 0 0 791956.716 0 2 799678.013 791956.716 0.97% - 3s 0 0 791964.223 0 2 799678.013 791964.223 0.96% - 3s 0 0 791964.223 0 2 799678.013 791964.223 0.96% - 3s 0 0 791968.726 0 2 799678.013 791968.726 0.96% - 3s 0 0 791969.283 0 2 799678.013 791969.283 0.96% - 4s 0 0 791969.374 0 2 799678.013 791969.374 0.96% - 4s 0 0 791969.786 0 2 799678.013 791969.786 0.96% - 4s 0 0 791969.960 0 2 799678.013 791969.960 0.96% - 5s 0 0 791969.960 0 2 799678.013 791969.960 0.96% - 5s 0 2 792019.197 0 2 799678.013 792019.197 0.96% - 5s * 12 7 11 793357.35859 792677.894 0.09% 63.9 7s * 24 1 4 793200.24980 793024.070 0.02% 81.1 8s Cutting planes: Flow cover: 18 Explored 29 nodes (10098 simplex iterations) in 8.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.932002498024e+05, best bound 7.932002498024e+05, gap 0.0%