Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:39 2012 Optimize a model with 1018 rows, 65 columns and 2036 nonzeros Presolve removed 683 rows and 0 columns Presolve time: 0.02s Presolved: 335 rows, 65 columns, 1935 nonzeros Variable types: 0 continuous, 65 integer (65 binary) Found heuristic solution: objective 5.0000000 Root relaxation: objective 1.110292e+01, 220 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 11.10292 0 62 5.00000 11.10292 122% - 0s H 0 0 6.0000000 11.10292 85.0% - 0s 0 0 10.87780 0 62 6.00000 10.87780 81.3% - 0s H 0 0 8.0000000 10.87780 36.0% - 0s 0 0 10.81089 0 63 8.00000 10.81089 35.1% - 0s 0 0 10.74340 0 62 8.00000 10.74340 34.3% - 0s 0 0 10.69217 0 64 8.00000 10.69217 33.7% - 0s 0 0 10.68605 0 63 8.00000 10.68605 33.6% - 0s 0 0 10.68429 0 63 8.00000 10.68429 33.6% - 0s 0 0 10.68237 0 63 8.00000 10.68237 33.5% - 0s 0 2 10.68195 0 63 8.00000 10.68195 33.5% - 0s Cutting planes: Gomory: 1 Clique: 33 Zero half: 5 Explored 25 nodes (1507 simplex iterations) in 0.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%