Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:37 2012 Optimize a model with 80 rows, 39 columns and 160 nonzeros Presolve removed 29 rows and 7 columns Presolve time: 0.00s Presolved: 51 rows, 32 columns, 108 nonzeros Variable types: 0 continuous, 32 integer (32 binary) Found heuristic solution: objective 15.0000000 Root relaxation: objective 1.750000e+01, 42 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.50000 0 23 15.00000 17.50000 16.7% - 0s H 0 0 16.0000000 17.50000 9.38% - 0s 0 0 cutoff 0 16.00000 16.99998 6.25% - 0s Explored 0 nodes (69 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%