Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:10 2012 Optimize a model with 138 rows, 24 columns and 276 nonzeros Presolve removed 93 rows and 1 columns Presolve time: 0.00s Presolved: 45 rows, 23 columns, 177 nonzeros Variable types: 0 continuous, 23 integer (23 binary) Found heuristic solution: objective 5.0000000 Root relaxation: objective 6.600000e+00, 23 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 6.60000 0 16 5.00000 6.60000 32.0% - 0s H 0 0 6.0000000 6.60000 10.0% - 0s Explored 0 nodes (26 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%