Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:13 2012 Optimize a model with 378 rows, 40 columns and 756 nonzeros Presolve removed 267 rows and 0 columns Presolve time: 0.00s Presolved: 111 rows, 40 columns, 546 nonzeros Variable types: 0 continuous, 40 integer (40 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 8.333333e+00, 52 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 8.33333 0 21 7.00000 8.33333 19.0% - 0s 0 0 cutoff 0 7.00000 7.99999 14.3% - 0s Cutting planes: Clique: 1 Explored 0 nodes (65 simplex iterations) in 0.01 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%