Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:48:25 2012 Optimize a model with 2443 rows, 100 columns and 4886 nonzeros Presolve removed 1695 rows and 0 columns Presolve time: 0.07s Presolved: 748 rows, 100 columns, 5084 nonzeros Variable types: 0 continuous, 100 integer (100 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.454351e+01, 473 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14.54351 0 94 7.00000 14.54351 108% - 0s H 0 0 8.0000000 14.54351 81.8% - 0s 0 0 14.14518 0 100 8.00000 14.14518 76.8% - 0s H 0 0 9.0000000 14.14518 57.2% - 0s 0 0 13.97266 0 99 9.00000 13.97266 55.3% - 0s 0 0 13.95868 0 99 9.00000 13.95868 55.1% - 0s 0 0 13.92896 0 98 9.00000 13.92896 54.8% - 0s 0 0 13.90917 0 100 9.00000 13.90917 54.5% - 0s 0 0 13.89223 0 99 9.00000 13.89223 54.4% - 0s 0 0 13.88089 0 98 9.00000 13.88089 54.2% - 0s 0 0 13.85114 0 100 9.00000 13.85114 53.9% - 0s 0 0 13.83834 0 99 9.00000 13.83834 53.8% - 1s 0 0 13.83256 0 100 9.00000 13.83256 53.7% - 1s 0 0 13.82651 0 100 9.00000 13.82651 53.6% - 1s 0 0 13.82586 0 100 9.00000 13.82586 53.6% - 1s 0 0 13.82465 0 98 9.00000 13.82465 53.6% - 1s 0 0 13.82464 0 99 9.00000 13.82464 53.6% - 1s 0 2 13.82295 0 99 9.00000 13.82295 53.6% - 1s Cutting planes: Clique: 88 Explored 193 nodes (11798 simplex iterations) in 2.46 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%