Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:58 2013 Optimize a model with 9360 rows, 9060 columns and 36060 nonzeros Presolve removed 30 rows and 0 columns Presolve time: 0.04s Presolved: 9330 rows, 9060 columns, 36030 nonzeros Variable types: 9030 continuous, 30 integer (30 binary) Root relaxation: objective 2.636126e+04, 1107 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 26361.2560 0 27 - 26361.2560 - - 0s H 0 0 28819.000000 26361.2560 8.53% - 0s * 0 0 0 28386.000000 28386.0000 0.0% - 0s Cutting planes: Gomory: 19 Implied bound: 25 Explored 0 nodes (1427 simplex iterations) in 0.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.838600000000e+04, best bound 2.838600000000e+04, gap 0.0%