Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:16:20 2013 Optimize a model with 83811 rows, 82901 columns and 331331 nonzeros Presolve removed 5133 rows and 0 columns Presolve time: 0.60s Presolved: 78678 rows, 82901 columns, 321065 nonzeros Variable types: 82810 continuous, 91 integer (91 binary) Root relaxation: objective 1.134569e+05, 16343 iterations, 3.93 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 113456.892 0 4 - 113456.892 - - 4s H 0 0 118221.00000 113456.892 4.03% - 5s 0 0 113458.248 0 5 118221.000 113458.248 4.03% - 5s 0 0 113458.340 0 5 118221.000 113458.340 4.03% - 6s 0 0 113458.653 0 6 118221.000 113458.653 4.03% - 7s 0 0 113458.663 0 6 118221.000 113458.663 4.03% - 7s H 0 0 114764.36709 113458.663 1.14% - 10s 0 0 113458.663 0 4 114764.367 113458.663 1.14% - 15s 0 0 113458.663 0 5 114764.367 113458.663 1.14% - 15s 0 0 113458.663 0 6 114764.367 113458.663 1.14% - 16s 0 0 113458.691 0 6 114764.367 113458.691 1.14% - 16s 0 0 113458.749 0 6 114764.367 113458.749 1.14% - 17s 0 2 113467.647 0 6 114764.367 113467.647 1.13% - 19s 4 6 113667.750 4 2 114764.367 113591.348 1.02% 200 20s H 9 9 113986.75000 113600.609 0.34% 170 21s H 10 9 113890.08333 113600.609 0.25% 175 21s H 11 9 113888.52632 113600.609 0.25% 164 21s * 12 9 10 113869.00000 113600.609 0.24% 151 21s H 40 6 113829.16667 113754.745 0.07% 115 22s * 44 4 7 113783.00000 113761.414 0.02% 112 23s Cutting planes: Gomory: 2 Flow cover: 10 Explored 47 nodes (32401 simplex iterations) in 23.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.137830000000e+05, best bound 1.137797000000e+05, gap 0.0029%