Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:11 2012 Optimize a model with 249 rows, 32 columns and 498 nonzeros Presolve removed 169 rows and 0 columns Presolve time: 0.00s Presolved: 80 rows, 32 columns, 372 nonzeros Variable types: 0 continuous, 32 integer (32 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 7.200000e+00, 38 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 7.20000 0 24 6.00000 7.20000 20.0% - 0s H 0 0 7.0000000 7.20000 2.86% - 0s Explored 0 nodes (51 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%