Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:09:54 2013 Optimize a model with 79157 rows, 6084 columns and 240318 nonzeros Presolve removed 5421 rows and 3076 columns Presolve time: 0.75s Presolved: 73736 rows, 3008 columns, 223981 nonzeros Variable types: 37 continuous, 2971 integer (2971 binary) Found heuristic solution: objective 126624.00000 Root relaxation: objective 9.512411e+04, 20222 iterations, 2.30 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 95124.1053 0 16 126624.000 95124.1053 24.9% - 3s H 0 0 95142.000000 95124.1053 0.02% - 3s H 0 0 95141.000000 95124.1053 0.02% - 3s H 0 0 95135.000000 95124.1053 0.01% - 3s 0 0 95124.1053 0 29 95135.0000 95124.1053 0.01% - 4s 0 0 95124.1053 0 21 95135.0000 95124.1053 0.01% - 4s 0 0 95125.0000 0 16 95135.0000 95125.0000 0.01% - 5s H 0 0 95131.000000 95125.0000 0.01% - 5s Cutting planes: Gomory: 1 Implied bound: 9 MIR: 5 Zero half: 1 Explored 0 nodes (25967 simplex iterations) in 5.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.513100000000e+04, best bound 9.512500000000e+04, gap 0.0063%