Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:47:52 2012 Optimize a model with 2391 rows, 98 columns and 4782 nonzeros Presolve removed 1695 rows and 0 columns Presolve time: 0.06s Presolved: 696 rows, 98 columns, 4727 nonzeros Variable types: 0 continuous, 98 integer (98 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.418953e+01, 365 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14.18953 0 90 6.00000 14.18953 136% - 0s H 0 0 7.0000000 14.18953 103% - 0s H 0 0 9.0000000 14.18953 57.7% - 0s 0 0 13.74028 0 94 9.00000 13.74028 52.7% - 0s 0 0 13.66784 0 97 9.00000 13.66784 51.9% - 0s 0 0 13.57028 0 98 9.00000 13.57028 50.8% - 0s 0 0 13.56962 0 98 9.00000 13.56962 50.8% - 0s 0 0 13.56788 0 98 9.00000 13.56788 50.8% - 0s 0 0 13.56613 0 98 9.00000 13.56613 50.7% - 0s 0 0 13.56586 0 98 9.00000 13.56586 50.7% - 0s 0 0 13.56395 0 98 9.00000 13.56395 50.7% - 1s 0 0 13.56182 0 98 9.00000 13.56182 50.7% - 1s 0 0 13.56168 0 98 9.00000 13.56168 50.7% - 1s 0 2 13.56140 0 98 9.00000 13.56140 50.7% - 1s Cutting planes: Clique: 73 Explored 166 nodes (10449 simplex iterations) in 2.00 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%