Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:46:32 2012 Optimize a model with 2150 rows, 93 columns and 4300 nonzeros Presolve removed 1507 rows and 0 columns Presolve time: 0.05s Presolved: 643 rows, 93 columns, 4303 nonzeros Variable types: 0 continuous, 93 integer (93 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.363817e+01, 359 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 13.63817 0 88 8.00000 13.63817 70.5% - 0s H 0 0 9.0000000 13.63817 51.5% - 0s 0 0 13.34529 0 91 9.00000 13.34529 48.3% - 0s 0 0 13.24832 0 91 9.00000 13.24832 47.2% - 0s 0 0 13.18496 0 91 9.00000 13.18496 46.5% - 0s 0 0 13.11997 0 91 9.00000 13.11997 45.8% - 0s 0 0 13.10832 0 91 9.00000 13.10832 45.6% - 0s 0 0 13.09970 0 90 9.00000 13.09970 45.6% - 0s 0 0 13.09856 0 92 9.00000 13.09856 45.5% - 0s 0 0 13.09848 0 91 9.00000 13.09848 45.5% - 0s 0 0 13.09842 0 91 9.00000 13.09842 45.5% - 0s 0 2 13.09772 0 91 9.00000 13.09772 45.5% - 0s Cutting planes: Clique: 65 Explored 93 nodes (6520 simplex iterations) in 1.17 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%