Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:11 2012 Optimize a model with 206 rows, 30 columns and 412 nonzeros Presolve removed 145 rows and 0 columns Presolve time: 0.00s Presolved: 61 rows, 30 columns, 293 nonzeros Variable types: 0 continuous, 30 integer (30 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 7.142857e+00, 46 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 7.14286 0 19 6.00000 7.14286 19.0% - 0s H 0 0 7.0000000 7.14286 2.04% - 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%