Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:37 2012 Optimize a model with 112 rows, 45 columns and 224 nonzeros Presolve removed 53 rows and 10 columns Presolve time: 0.00s Presolved: 59 rows, 35 columns, 126 nonzeros Variable types: 0 continuous, 35 integer (35 binary) Found heuristic solution: objective 17.0000000 Root relaxation: objective 1.966667e+01, 45 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 19.66667 0 24 17.00000 19.66667 15.7% - 0s H 0 0 19.0000000 19.66667 3.51% - 0s Explored 0 nodes (48 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.900000000000e+01, best bound 1.900000000000e+01, gap 0.0%