Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:31 2012 Optimize a model with 943 rows, 61 columns and 1886 nonzeros Presolve removed 668 rows and 0 columns Presolve time: 0.01s Presolved: 275 rows, 61 columns, 1676 nonzeros Variable types: 0 continuous, 61 integer (61 binary) Found heuristic solution: objective 5.0000000 Root relaxation: objective 1.007666e+01, 136 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 10.07666 0 56 5.00000 10.07666 102% - 0s H 0 0 7.0000000 10.07666 44.0% - 0s 0 0 9.61769 0 59 7.00000 9.61769 37.4% - 0s 0 0 9.53598 0 61 7.00000 9.53598 36.2% - 0s 0 0 9.52020 0 59 7.00000 9.52020 36.0% - 0s 0 0 9.50500 0 60 7.00000 9.50500 35.8% - 0s 0 0 9.49075 0 60 7.00000 9.49075 35.6% - 0s 0 0 9.48563 0 60 7.00000 9.48563 35.5% - 0s 0 0 9.48498 0 61 7.00000 9.48498 35.5% - 0s 0 2 9.48374 0 61 7.00000 9.48374 35.5% - 0s Cutting planes: Clique: 32 Zero half: 10 Explored 32 nodes (1563 simplex iterations) in 0.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%