Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:56:18 2012 Optimize a model with 3438 rows, 117 columns and 6876 nonzeros Presolve removed 2461 rows and 0 columns Presolve time: 0.11s Presolved: 977 rows, 117 columns, 6823 nonzeros Variable types: 0 continuous, 117 integer (117 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.579988e+01, 479 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 15.79988 0 112 7.00000 15.79988 126% - 0s H 0 0 9.0000000 15.79988 75.6% - 0s H 0 0 10.0000000 15.79988 58.0% - 0s 0 0 15.45893 0 115 10.00000 15.45893 54.6% - 0s 0 0 15.34001 0 117 10.00000 15.34001 53.4% - 0s 0 0 15.31232 0 117 10.00000 15.31232 53.1% - 0s 0 0 15.28314 0 116 10.00000 15.28314 52.8% - 0s 0 0 15.26889 0 116 10.00000 15.26889 52.7% - 0s 0 0 15.26335 0 117 10.00000 15.26335 52.6% - 1s 0 0 15.26092 0 117 10.00000 15.26092 52.6% - 1s 0 0 15.26045 0 117 10.00000 15.26045 52.6% - 1s 0 0 15.26022 0 117 10.00000 15.26022 52.6% - 1s 0 0 15.26015 0 117 10.00000 15.26015 52.6% - 1s 0 2 15.25861 0 117 10.00000 15.25861 52.6% - 1s Cutting planes: Clique: 77 Zero half: 2 Explored 201 nodes (16726 simplex iterations) in 3.04 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%