Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:55:55 2013 Optimize a model with 87513 rows, 86583 columns and 346053 nonzeros Presolve removed 6249 rows and 0 columns Presolve time: 0.61s Presolved: 81264 rows, 86583 columns, 333555 nonzeros Variable types: 86490 continuous, 93 integer (93 binary) Root relaxation: objective 1.017031e+05, 17298 iterations, 4.41 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 101703.051 0 5 - 101703.051 - - 5s H 0 0 106712.00000 101703.051 4.69% - 5s 0 0 101705.232 0 6 106712.000 101705.232 4.69% - 6s 0 0 101705.433 0 6 106712.000 101705.433 4.69% - 7s 0 0 101705.433 0 6 106712.000 101705.433 4.69% - 8s 0 0 101705.433 0 6 106712.000 101705.433 4.69% - 9s H 0 0 104704.56989 101705.433 2.86% - 11s H 0 0 102800.00000 101705.433 1.06% - 12s 0 0 101705.433 0 5 102800.000 101705.433 1.06% - 17s 0 0 101705.827 0 9 102800.000 101705.827 1.06% - 18s 0 0 101705.827 0 9 102800.000 101705.827 1.06% - 19s 0 2 101735.555 0 9 102800.000 101735.555 1.04% - 23s 9 11 102530.831 7 2 102800.000 101928.901 0.85% 254 25s H 10 10 102785.97500 101928.901 0.83% 228 25s * 13 10 11 102553.00000 101928.901 0.61% 189 25s * 14 9 9 102547.00000 101928.901 0.60% 182 25s H 27 9 102457.00000 102299.482 0.15% 199 27s Cutting planes: Gomory: 4 Flow cover: 9 Explored 38 nodes (35528 simplex iterations) in 27.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.024570000000e+05, best bound 1.024570000000e+05, gap 0.0%