Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:15 2012 Optimize a model with 242 rows, 90 columns and 772 nonzeros Presolve removed 164 rows and 2 columns Presolve time: 0.00s Presolved: 78 rows, 88 columns, 385 nonzeros Variable types: 0 continuous, 88 integer (88 binary) Found heuristic solution: objective 9.0000000 Root relaxation: objective 4.000000e+00, 92 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 4.00000 0 8 9.00000 4.00000 55.6% - 0s H 0 0 5.0000000 4.00000 20.0% - 0s 0 0 4.00000 0 23 5.00000 4.00000 20.0% - 0s 0 0 infeasible 0 5.00000 4.00001 20.0% - 0s Cutting planes: Gomory: 1 Clique: 5 Zero half: 11 Explored 0 nodes (293 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%