Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:48:06 2012 Optimize a model with 2397 rows, 99 columns and 4794 nonzeros Presolve removed 1682 rows and 0 columns Presolve time: 0.07s Presolved: 715 rows, 99 columns, 4769 nonzeros Variable types: 0 continuous, 99 integer (99 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.449555e+01, 335 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14.49555 0 96 6.00000 14.49555 142% - 0s H 0 0 7.0000000 14.49555 107% - 0s H 0 0 8.0000000 14.49555 81.2% - 0s 0 0 14.07259 0 97 8.00000 14.07259 75.9% - 0s 0 0 14.01619 0 98 8.00000 14.01619 75.2% - 0s H 0 0 9.0000000 14.01619 55.7% - 0s 0 0 13.99460 0 99 9.00000 13.99460 55.5% - 0s 0 0 13.98760 0 99 9.00000 13.98760 55.4% - 0s 0 0 13.98539 0 98 9.00000 13.98539 55.4% - 0s 0 0 13.98213 0 97 9.00000 13.98213 55.4% - 0s 0 0 13.97673 0 98 9.00000 13.97673 55.3% - 0s 0 0 13.97660 0 98 9.00000 13.97660 55.3% - 0s 0 2 13.97652 0 98 9.00000 13.97652 55.3% - 1s Cutting planes: Clique: 53 Zero half: 3 Explored 166 nodes (10488 simplex iterations) in 1.59 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%