Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:34 2012 Optimize a model with 21 rows, 17 columns and 42 nonzeros Presolve removed 14 rows and 10 columns Presolve time: 0.00s Presolved: 7 rows, 7 columns, 15 nonzeros Variable types: 0 continuous, 7 integer (7 binary) Found heuristic solution: objective 7.0000000 Found heuristic solution: objective 8.0000000 Root relaxation: cutoff, 2 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 8.00000 8.99999 12.5% - 0s 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 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%