Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:05:00 2013 Optimize a model with 2100 rows, 101300 columns and 204000 nonzeros Presolve removed 200 rows and 200 columns Presolve time: 0.49s Presolved: 1900 rows, 101100 columns, 203300 nonzeros Variable types: 100700 continuous, 400 integer (400 binary) Root relaxation: objective 7.918217e+05, 6268 iterations, 0.70 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 856648.37185 791821.709 7.57% - 1s 0 0 791887.106 0 2 856648.372 791887.106 7.56% - 2s 0 0 791953.011 0 2 856648.372 791953.011 7.55% - 2s 0 0 791953.011 0 2 856648.372 791953.011 7.55% - 2s 0 0 791953.575 0 2 856648.372 791953.575 7.55% - 2s 0 0 791958.934 0 2 856648.372 791958.934 7.55% - 3s 0 0 791965.631 0 2 856648.372 791965.631 7.55% - 3s 0 0 791968.151 0 2 856648.372 791968.151 7.55% - 3s 0 0 791968.699 0 2 856648.372 791968.699 7.55% - 3s 0 0 791970.050 0 2 856648.372 791970.050 7.55% - 4s 0 0 791970.715 0 2 856648.372 791970.715 7.55% - 4s 0 0 791970.715 0 2 856648.372 791970.715 7.55% - 4s 0 0 791970.994 0 2 856648.372 791970.994 7.55% - 5s 0 0 791970.994 0 2 856648.372 791970.994 7.55% - 5s 0 2 792020.065 0 2 856648.372 792020.065 7.54% - 6s * 17 8 16 793357.35859 792632.043 0.09% 65.5 9s 22 5 792714.648 5 1 793357.359 792714.648 0.08% 99.3 10s * 37 3 5 793200.24980 792940.639 0.03% 86.4 11s Cutting planes: Flow cover: 20 Explored 50 nodes (10909 simplex iterations) in 12.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.932002498024e+05, best bound 7.931571161541e+05, gap 0.0054%