Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:13:13 2013 Optimize a model with 170 rows, 5315 columns and 60670 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.11s Presolved: 165 rows, 5310 columns, 55665 nonzeros Variable types: 5260 continuous, 50 integer (50 binary) Root relaxation: objective 1.204447e+04, 46 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 12044.4669 0 3 - 12044.4669 - - 0s 0 0 12044.5159 0 3 - 12044.5159 - - 0s 0 0 12090.0659 0 3 - 12090.0659 - - 0s 0 0 12095.5216 0 3 - 12095.5216 - - 0s 0 0 12097.6211 0 3 - 12097.6211 - - 0s 0 0 12097.6211 0 3 - 12097.6211 - - 0s 0 0 12097.6211 0 3 - 12097.6211 - - 0s 0 0 12097.6211 0 3 - 12097.6211 - - 0s H 0 0 12279.598202 12097.6211 1.48% - 1s 0 2 12097.6594 0 3 12279.5982 12097.6594 1.48% - 1s * 16 6 15 12102.500609 12097.6855 0.04% 4.4 1s * 22 1 7 12097.776352 12097.7764 0.0% 3.6 1s Explored 23 nodes (352 simplex iterations) in 1.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.209777635186e+04, best bound 1.209777635186e+04, gap 0.0%