Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:33:51 2013 Optimize a model with 2400 rows, 102800 columns and 215900 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.27s Presolved: 2300 rows, 102700 columns, 213800 nonzeros Variable types: 102200 continuous, 500 integer (500 binary) Root relaxation: objective 7.918217e+05, 6139 iterations, 0.53 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 791821.709 0 6 - 791821.709 - - 0s 0 0 791888.160 0 6 - 791888.160 - - 1s 0 0 791951.423 0 6 - 791951.423 - - 1s 0 0 791951.751 0 8 - 791951.751 - - 1s 0 0 791954.063 0 8 - 791954.063 - - 2s 0 0 791957.863 0 6 - 791957.863 - - 2s 0 0 791960.832 0 6 - 791960.832 - - 2s 0 0 791961.511 0 8 - 791961.511 - - 3s 0 0 791963.852 0 8 - 791963.852 - - 3s 0 0 791966.045 0 8 - 791966.045 - - 3s 0 0 791966.472 0 8 - 791966.472 - - 3s 0 0 791966.903 0 8 - 791966.903 - - 4s 0 0 791967.238 0 8 - 791967.238 - - 4s 0 0 791967.238 0 8 - 791967.238 - - 5s H 0 0 802039.54298 791967.238 1.26% - 6s 0 2 791967.238 0 8 802039.543 791967.238 1.26% - 6s 11 11 792918.387 10 3 802039.543 792675.339 1.17% 95.1 10s * 16 6 15 793357.35859 792675.339 0.09% 85.0 12s * 31 3 6 793200.24980 792900.607 0.04% 73.8 14s Cutting planes: Flow cover: 21 Explored 41 nodes (11693 simplex iterations) in 14.92 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%