Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:46:33 2012 Optimize a model with 2132 rows, 93 columns and 4264 nonzeros Presolve removed 1497 rows and 0 columns Presolve time: 0.06s Presolved: 635 rows, 93 columns, 4091 nonzeros Variable types: 0 continuous, 93 integer (93 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.359635e+01, 339 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 13.59635 0 90 6.00000 13.59635 127% - 0s H 0 0 7.0000000 13.59635 94.2% - 0s 0 0 13.38167 0 89 7.00000 13.38167 91.2% - 0s H 0 0 8.0000000 13.38167 67.3% - 0s 0 0 13.21352 0 93 8.00000 13.21352 65.2% - 0s 0 0 13.20114 0 93 8.00000 13.20114 65.0% - 0s 0 0 13.17940 0 93 8.00000 13.17940 64.7% - 0s 0 0 13.16035 0 93 8.00000 13.16035 64.5% - 0s 0 0 13.15729 0 93 8.00000 13.15729 64.5% - 0s 0 0 13.15533 0 93 8.00000 13.15533 64.4% - 0s 0 2 13.15466 0 93 8.00000 13.15466 64.4% - 0s * 224 14 6 9.0000000 10.72933 19.2% 47.9 1s Cutting planes: Clique: 54 Zero half: 2 Explored 239 nodes (11640 simplex iterations) in 1.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%