Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:11 2013 Optimize a model with 32 rows, 1045 columns and 12039 nonzeros Presolve removed 12 rows and 36 columns Presolve time: 0.03s Presolved: 20 rows, 1009 columns, 11016 nonzeros Variable types: 1000 continuous, 9 integer (9 binary) Root relaxation: objective 3.439496e+03, 14 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3439.49586 0 3 - 3439.49586 - - 0s 0 0 3439.49788 0 3 - 3439.49788 - - 0s 0 0 3439.49853 0 3 - 3439.49853 - - 0s 0 0 3439.51837 0 4 - 3439.51837 - - 0s 0 0 3439.51837 0 4 - 3439.51837 - - 0s H 0 0 3439.5351809 3439.51837 0.00% - 0s Cutting planes: Implied bound: 2 Explored 0 nodes (50 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.439535180882e+03, best bound 3.439518370383e+03, gap 0.0005%