Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:16:18 2013 Optimize a model with 98854 rows, 7056 columns and 299880 nonzeros Presolve removed 8340 rows and 3599 columns Presolve time: 0.96s Presolved: 90514 rows, 3457 columns, 274048 nonzeros Variable types: 31 continuous, 3426 integer (3426 binary) Found heuristic solution: objective 148957.00000 Root relaxation: objective 1.144214e+05, 18139 iterations, 2.46 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 114421.368 0 14 148957.000 114421.368 23.2% - 3s H 0 0 114450.00000 114421.368 0.03% - 3s H 0 0 114443.00000 114421.368 0.02% - 3s H 0 0 114433.00000 114421.368 0.01% - 3s 0 0 114421.886 0 45 114433.000 114421.886 0.01% - 4s Cutting planes: Gomory: 6 Implied bound: 1 MIR: 12 Zero half: 1 Explored 0 nodes (18436 simplex iterations) in 4.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.144330000000e+05, best bound 1.144220000000e+05, gap 0.0096%