Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:11:55 2013 Optimize a model with 170 rows, 10550 columns and 130605 nonzeros Presolve removed 5 rows and 245 columns Presolve time: 0.38s Presolved: 165 rows, 10305 columns, 120605 nonzeros Variable types: 10255 continuous, 50 integer (50 binary) Root relaxation: objective 9.876190e+03, 75 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 9876.18952 0 8 - 9876.18952 - - 0s 0 0 9876.23364 0 16 - 9876.23364 - - 0s 0 0 9876.24467 0 8 - 9876.24467 - - 0s 0 0 9915.23430 0 14 - 9915.23430 - - 0s 0 0 9942.24090 0 6 - 9942.24090 - - 0s 0 0 9942.24090 0 6 - 9942.24090 - - 0s H 0 0 9942.9596239 9942.24090 0.01% - 0s Cutting planes: Flow cover: 2 Explored 0 nodes (168 simplex iterations) in 0.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.942959623924e+03, best bound 9.942240901509e+03, gap 0.0072%