Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:04:53 2013 Optimize a model with 140 rows, 3030 columns and 8040 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Presolved: 130 rows, 3020 columns, 6030 nonzeros Variable types: 3020 continuous, 0 integer (0 binary) Root relaxation: objective 1.791602e+04, 112 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17916.0191 0 3 - 17916.0191 - - 0s 0 2 17916.0191 0 3 - 17916.0191 - - 0s * 32 14 16 17984.443210 17979.7269 0.03% 5.8 0s * 34 10 17 17984.341363 17979.7269 0.03% 5.5 0s * 35 7 18 17984.224091 17979.7269 0.03% 5.3 0s Explored 39 nodes (299 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.798422409141e+04, best bound 1.798379772039e+04, gap 0.0024%