Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:39:28 2013 Optimize a model with 2600 rows, 105900 columns and 242200 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.31s Presolved: 2500 rows, 105800 columns, 237100 nonzeros Variable types: 105200 continuous, 600 integer (600 binary) Root relaxation: objective 7.918217e+05, 6444 iterations, 0.57 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 - - 1s 0 0 791887.633 0 6 - 791887.633 - - 1s 0 0 791926.065 0 6 - 791926.065 - - 1s 0 0 791932.741 0 6 - 791932.741 - - 2s 0 0 791935.672 0 6 - 791935.672 - - 2s 0 0 791937.914 0 7 - 791937.914 - - 2s 0 0 791939.393 0 6 - 791939.393 - - 2s 0 0 791940.257 0 6 - 791940.257 - - 2s 0 0 791940.639 0 6 - 791940.639 - - 3s 0 0 791940.986 0 6 - 791940.986 - - 3s 0 0 791941.232 0 6 - 791941.232 - - 3s 0 0 791941.676 0 6 - 791941.676 - - 4s 0 0 791941.676 0 6 - 791941.676 - - 4s H 0 0 825465.56971 791941.676 4.06% - 5s H 0 0 803907.97236 791941.676 1.49% - 5s 0 2 791941.676 0 6 803907.972 791941.676 1.49% - 6s 21 20 793522.925 19 3 803907.972 792608.899 1.41% 64.8 10s 48 37 794607.887 45 3 803907.972 792608.899 1.41% 47.8 15s H 54 30 799168.89203 792608.899 0.82% 45.3 15s H 81 36 796282.60910 792608.899 0.46% 37.7 18s 102 45 795671.308 98 3 796282.609 792608.899 0.46% 32.9 20s H 108 42 795909.36300 792608.899 0.41% 31.2 20s H 216 45 793899.75182 792666.717 0.16% 18.8 24s 249 78 793447.451 81 1 793899.752 792666.717 0.16% 16.8 25s * 320 130 152 793675.81227 792666.717 0.13% 13.6 26s * 351 39 21 793357.35859 792722.842 0.08% 14.7 28s * 362 4 9 793200.24980 792882.714 0.04% 17.9 29s Cutting planes: Flow cover: 16 Explored 384 nodes (15481 simplex iterations) in 29.91 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%