Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:00 2012 Optimize a model with 95 rows, 59 columns and 190 nonzeros Presolve removed 66 rows and 36 columns Presolve time: 0.00s Presolved: 29 rows, 23 columns, 58 nonzeros Variable types: 0 continuous, 23 integer (23 binary) Found heuristic solution: objective 28.0000000 Root relaxation: objective 2.950000e+01, 25 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 29.50000 0 23 28.00000 29.50000 5.36% - 0s H 0 0 29.0000000 29.50000 1.72% - 0s Explored 0 nodes (29 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.900000000000e+01, best bound 2.900000000000e+01, gap 0.0%