Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:11 2012 Optimize a model with 173 rows, 26 columns and 346 nonzeros Presolve removed 117 rows and 0 columns Presolve time: 0.00s Presolved: 56 rows, 26 columns, 261 nonzeros Variable types: 0 continuous, 26 integer (26 binary) Found heuristic solution: objective 5.0000000 Root relaxation: objective 6.000000e+00, 16 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 6.00000 0 12 5.00000 6.00000 20.0% - 0s 0 0 infeasible 0 5.00000 5.99999 20.0% - 0s Explored 0 nodes (36 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%