Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:55:03 2013 Optimize a model with 87513 rows, 86583 columns and 346053 nonzeros Presolve removed 5187 rows and 0 columns Presolve time: 0.61s Presolved: 82326 rows, 86583 columns, 335679 nonzeros Variable types: 86490 continuous, 93 integer (93 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 19056 1.2502737e+05 1.689840e+04 0.000000e+00 5s 20264 1.2535976e+05 0.000000e+00 0.000000e+00 6s Root relaxation: objective 1.253598e+05, 20264 iterations, 5.91 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 125359.763 0 3 - 125359.763 - - 6s H 0 0 128087.00000 125359.763 2.13% - 7s H 0 0 126179.00000 125359.763 0.65% - 7s 0 0 125362.835 0 5 126179.000 125362.835 0.65% - 7s 0 0 125362.878 0 5 126179.000 125362.878 0.65% - 8s 0 0 125362.878 0 5 126179.000 125362.878 0.65% - 9s 0 0 125362.878 0 3 126179.000 125362.878 0.65% - 18s 0 0 125363.051 0 7 126179.000 125363.051 0.65% - 18s 0 0 125363.155 0 7 126179.000 125363.155 0.65% - 19s 0 2 125363.960 0 7 126179.000 125363.960 0.65% - 23s 11 12 125922.105 8 2 126179.000 125509.286 0.53% 295 25s * 21 12 14 126162.00000 125509.286 0.52% 191 26s H 28 13 126130.50000 125554.625 0.46% 175 26s H 30 15 126128.22727 125554.625 0.45% 171 26s H 32 17 126018.00000 125554.625 0.37% 165 27s H 33 15 125906.90909 125554.625 0.28% 163 27s * 34 15 11 125893.00000 125554.625 0.27% 161 27s H 47 4 125746.07143 125675.460 0.06% 165 28s * 48 4 7 125740.00000 125682.441 0.05% 170 28s Cutting planes: Gomory: 3 Flow cover: 7 Explored 53 nodes (40030 simplex iterations) in 28.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.257400000000e+05, best bound 1.257400000000e+05, gap 0.0%