Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:36:35 2013 Optimize a model with 1012 rows, 84732 columns and 169372 nonzeros Presolve time: 0.14s Presolved: 1012 rows, 84732 columns, 169372 nonzeros Variable types: 84640 continuous, 92 integer (92 binary) Root relaxation: objective 1.370730e+05, 3884 iterations, 0.19 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 137073.028 0 7 - 137073.028 - - 0s H 0 0 140668.00000 137073.028 2.56% - 0s H 0 0 138728.00000 137073.028 1.19% - 0s 0 0 137637.589 0 5 138728.000 137637.589 0.79% - 0s 0 0 137659.557 0 4 138728.000 137659.557 0.77% - 1s 0 0 137659.557 0 7 138728.000 137659.557 0.77% - 1s 0 0 137659.557 0 5 138728.000 137659.557 0.77% - 1s 0 0 137659.557 0 4 138728.000 137659.557 0.77% - 1s 0 0 137664.114 0 4 138728.000 137664.114 0.77% - 1s 0 0 137664.114 0 4 138728.000 137664.114 0.77% - 2s H 0 0 137974.00000 137664.114 0.22% - 2s 0 2 137671.354 0 4 137974.000 137671.354 0.22% - 2s H 7 4 137960.00000 137734.824 0.16% 42.7 2s H 9 6 137887.00000 137734.824 0.11% 44.6 2s * 10 4 8 137859.00000 137734.824 0.09% 51.0 2s Cutting planes: Implied bound: 91 Flow cover: 4 Explored 14 nodes (8812 simplex iterations) in 2.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.378590000000e+05, best bound 1.378590000000e+05, gap 0.0%