Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:12 2013 Optimize a model with 5543 rows, 5313 columns and 21183 nonzeros Presolve removed 1030 rows and 0 columns Presolve time: 0.03s Presolved: 4513 rows, 5313 columns, 19123 nonzeros Variable types: 5290 continuous, 23 integer (23 binary) Root relaxation: objective 2.549511e+04, 676 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 25495.1111 0 1 - 25495.1111 - - 0s H 0 0 25513.000000 25495.1111 0.07% - 0s 0 0 25495.3380 0 2 25513.0000 25495.3380 0.07% - 0s 0 0 25495.3380 0 1 25513.0000 25495.3380 0.07% - 0s Cutting planes: Gomory: 1 Explored 0 nodes (817 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.551300000000e+04, best bound 2.551300000000e+04, gap 0.0%