Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:47:13 2013 Optimize a model with 140 rows, 2030 columns and 5040 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Presolved: 130 rows, 2020 columns, 4030 nonzeros Variable types: 2020 continuous, 0 integer (0 binary) Root relaxation: objective 1.791602e+04, 115 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 * 30 12 15 17984.878820 17979.7269 0.03% 6.0 0s * 31 9 16 17984.549243 17979.7269 0.03% 5.8 0s * 32 6 16 17984.221875 17979.7269 0.02% 5.7 0s Explored 36 nodes (296 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.798422187500e+04, best bound 1.798379772039e+04, gap 0.0024%