Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:32 2013 Optimize a model with 70 rows, 515 columns and 1270 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.00s Presolved: 65 rows, 510 columns, 1015 nonzeros Variable types: 510 continuous, 0 integer (0 binary) Root relaxation: objective 9.876190e+03, 34 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 9876.18952 0 2 - 9876.18952 - - 0s 0 2 9876.18952 0 2 - 9876.18952 - - 0s * 21 9 10 9962.9552671 9916.61381 0.47% 2.8 0s * 26 12 13 9951.0380972 9916.61381 0.35% 2.5 0s * 37 7 12 9948.9552671 9916.88428 0.32% 2.1 0s * 54 6 10 9943.7097344 9941.63265 0.02% 1.8 0s Explored 60 nodes (133 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.943709734447e+03, best bound 9.942859507818e+03, gap 0.0086%