Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:47:39 2012 Optimize a model with 2376 rows, 98 columns and 4752 nonzeros Presolve removed 1733 rows and 0 columns Presolve time: 0.07s Presolved: 643 rows, 98 columns, 4315 nonzeros Variable types: 0 continuous, 98 integer (98 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.397039e+01, 377 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 13.97039 0 95 8.00000 13.97039 74.6% - 0s 0 0 13.59271 0 96 8.00000 13.59271 69.9% - 0s 0 0 13.54916 0 97 8.00000 13.54916 69.4% - 0s H 0 0 9.0000000 13.54916 50.5% - 0s 0 0 13.52304 0 98 9.00000 13.52304 50.3% - 0s 0 0 13.52137 0 98 9.00000 13.52137 50.2% - 0s 0 0 13.52084 0 98 9.00000 13.52084 50.2% - 0s 0 2 13.51435 0 98 9.00000 13.51435 50.2% - 0s * 123 6 4 10.0000000 11.40180 14.0% 60.5 1s Cutting planes: Clique: 49 Zero half: 6 Explored 130 nodes (8167 simplex iterations) in 1.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%