Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:34:24 2013 Optimize a model with 2625 rows, 625 columns and 8125 nonzeros Presolve removed 750 rows and 336 columns Presolve time: 0.02s Presolved: 1875 rows, 289 columns, 5845 nonzeros Variable types: 10 continuous, 279 integer (279 binary) Found heuristic solution: objective 11739.000000 Root relaxation: objective 9.567591e+03, 1180 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 9567.59091 0 6 11739.0000 9567.59091 18.5% - 0s H 0 0 9573.0000000 9567.59091 0.06% - 0s 0 0 9567.64511 0 16 9573.00000 9567.64511 0.06% - 0s 0 0 9567.64511 0 7 9573.00000 9567.64511 0.06% - 0s 0 0 9567.86826 0 20 9573.00000 9567.86826 0.05% - 0s 0 0 9568.10575 0 26 9573.00000 9568.10575 0.05% - 0s 0 0 9568.75528 0 26 9573.00000 9568.75528 0.04% - 0s 0 0 9569.11557 0 24 9573.00000 9569.11557 0.04% - 0s 0 0 9569.40180 0 27 9573.00000 9569.40180 0.04% - 0s 0 0 9569.68760 0 29 9573.00000 9569.68760 0.03% - 0s 0 0 9569.69500 0 26 9573.00000 9569.69500 0.03% - 0s 0 0 9569.72895 0 31 9573.00000 9569.72895 0.03% - 0s 0 0 9569.73063 0 28 9573.00000 9569.73063 0.03% - 0s 0 0 9569.73063 0 28 9573.00000 9569.73063 0.03% - 0s H 0 0 9572.0000000 9569.73063 0.02% - 0s 0 2 9569.74279 0 28 9572.00000 9569.74279 0.02% - 0s Cutting planes: MIR: 16 Zero half: 2 Explored 11 nodes (1621 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.572000000000e+03, best bound 9.572000000000e+03, gap 0.0%