Gurobi 5.0.1 (linux64) logging started Sat Dec 8 10:29:57 2012 Optimize a model with 3255 rows, 3240 columns and 11813 nonzeros Presolve removed 287 rows and 110 columns Presolve time: 0.02s Presolved: 2968 rows, 3130 columns, 11218 nonzeros Variable types: 2781 continuous, 349 integer (349 binary) Root relaxation: objective 1.114212e+05, 537 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 111421.231 0 14 - 111421.231 - - 0s H 0 0 112737.00000 111421.231 1.17% - 0s H 0 0 111819.00000 111421.231 0.36% - 0s 0 0 111438.610 0 23 111819.000 111438.610 0.34% - 0s 0 0 111447.001 0 24 111819.000 111447.001 0.33% - 0s 0 0 111449.727 0 24 111819.000 111449.727 0.33% - 0s 0 0 111456.898 0 25 111819.000 111456.898 0.32% - 0s 0 0 111456.914 0 26 111819.000 111456.914 0.32% - 0s 0 0 111456.914 0 14 111819.000 111456.914 0.32% - 0s 0 0 111456.914 0 24 111819.000 111456.914 0.32% - 0s 0 0 111456.914 0 26 111819.000 111456.914 0.32% - 0s 0 0 111458.150 0 20 111819.000 111458.150 0.32% - 0s H 0 0 111798.00000 111458.150 0.30% - 0s 0 2 111458.507 0 20 111798.000 111458.507 0.30% - 0s H 28 22 111610.00000 111484.236 0.11% 7.1 0s * 82 46 22 111594.00000 111511.077 0.07% 5.7 0s * 178 53 26 111583.00000 111528.603 0.05% 5.1 0s Cutting planes: Gomory: 3 Flow cover: 8 Explored 421 nodes (2915 simplex iterations) in 0.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.115830000000e+05, best bound 1.115720696805e+05, gap 0.0098%