Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:33:45 2013 Optimize a model with 1800 rows, 100700 columns and 201900 nonzeros Presolve removed 300 rows and 200 columns Presolve time: 0.26s Presolved: 1500 rows, 100500 columns, 201100 nonzeros Variable types: 100400 continuous, 100 integer (100 binary) Root relaxation: objective 7.918217e+05, 7334 iterations, 0.56 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 - - 0s H 0 0 810636.36370 791821.709 2.32% - 1s 0 0 791888.951 0 2 810636.364 791888.951 2.31% - 1s 0 0 791945.556 0 2 810636.364 791945.556 2.31% - 1s 0 0 791947.244 0 2 810636.364 791947.244 2.31% - 1s 0 0 791950.703 0 2 810636.364 791950.703 2.31% - 2s 0 0 791956.842 0 2 810636.364 791956.842 2.30% - 2s 0 0 791963.842 0 2 810636.364 791963.842 2.30% - 2s 0 0 791965.490 0 2 810636.364 791965.490 2.30% - 2s 0 0 791966.397 0 2 810636.364 791966.397 2.30% - 2s 0 0 791967.746 0 2 810636.364 791967.746 2.30% - 3s 0 0 791968.164 0 2 810636.364 791968.164 2.30% - 3s 0 0 791968.389 0 2 810636.364 791968.389 2.30% - 3s 0 0 791968.711 0 2 810636.364 791968.711 2.30% - 4s 0 0 791968.903 0 2 810636.364 791968.903 2.30% - 4s 0 0 791969.002 0 2 810636.364 791969.002 2.30% - 4s 0 0 791969.127 0 2 810636.364 791969.127 2.30% - 4s 0 0 791969.174 0 2 810636.364 791969.174 2.30% - 5s 0 0 791969.209 0 2 810636.364 791969.209 2.30% - 5s 0 0 791969.209 0 2 810636.364 791969.209 2.30% - 5s 0 2 792023.312 0 2 810636.364 792023.312 2.30% - 6s * 17 6 16 793357.35859 792676.590 0.09% 60.1 8s * 30 1 4 793200.24980 793024.070 0.02% 91.4 10s Cutting planes: Flow cover: 25 Explored 39 nodes (11573 simplex iterations) in 10.15 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%