Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:07:26 2013 Optimize a model with 70375 rows, 5625 columns and 213750 nonzeros Presolve removed 5601 rows and 2859 columns Presolve time: 0.59s Presolved: 64774 rows, 2766 columns, 196478 nonzeros Variable types: 30 continuous, 2736 integer (2736 binary) Found heuristic solution: objective 139389.00000 Root relaxation: objective 1.097338e+05, 18720 iterations, 2.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 109733.843 0 10 139389.000 109733.843 21.3% - 2s H 0 0 109745.00000 109733.843 0.01% - 2s 0 0 109735.645 0 20 109745.000 109735.645 0.01% - 3s Cutting planes: Gomory: 5 Implied bound: 1 MIR: 9 Explored 0 nodes (18889 simplex iterations) in 3.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.097450000000e+05, best bound 1.097360000000e+05, gap 0.0082%