Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:01:15 2013 Optimize a model with 129 rows, 81 columns and 405 nonzeros Presolve removed 105 rows and 59 columns Presolve time: 0.00s Presolved: 24 rows, 22 columns, 82 nonzeros Variable types: 2 continuous, 20 integer (20 binary) Found heuristic solution: objective 1253.0000000 Root relaxation: objective 1.230733e+03, 2 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1230.73333 0 1 1253.00000 1230.73333 1.78% - 0s H 0 0 1239.0000000 1230.73333 0.67% - 0s Cutting planes: MIR: 1 Explored 0 nodes (2 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.239000000000e+03, best bound 1.239000000000e+03, gap 0.0%