Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:26 2013 Optimize a model with 140 rows, 1230 columns and 2640 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Presolved: 130 rows, 1220 columns, 2430 nonzeros Variable types: 1220 continuous, 0 integer (0 binary) Root relaxation: objective 1.791602e+04, 94 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 H 0 0 18012.413083 17916.0191 0.54% - 0s 0 2 17916.0191 0 3 18012.4131 17916.0191 0.54% - 0s * 19 5 10 17984.080433 17983.9285 0.00% 2.1 0s Explored 20 nodes (133 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.798408043325e+04, best bound 1.798392845488e+04, gap 0.0008%