Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:17:45 2013 Optimize a model with 1159 rows, 361 columns and 3610 nonzeros Presolve removed 523 rows and 208 columns Presolve time: 0.01s Presolved: 636 rows, 153 columns, 1983 nonzeros Variable types: 5 continuous, 148 integer (148 binary) Found heuristic solution: objective 5352.0000000 Root relaxation: objective 4.356455e+03, 7 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 4356.45536 0 4 5352.00000 4356.45536 18.6% - 0s 0 0 4360.56367 0 9 5352.00000 4360.56367 18.5% - 0s H 0 0 4364.0000000 4360.56367 0.08% - 0s H 0 0 4362.0000000 4360.56367 0.03% - 0s H 0 0 4361.0000000 4360.56367 0.01% - 0s Cutting planes: Gomory: 1 MIR: 3 Explored 0 nodes (27 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.361000000000e+03, best bound 4.361000000000e+03, gap 0.0%