Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:58:03 2012 Optimize a model with 3552 rows, 120 columns and 7104 nonzeros Presolve removed 2534 rows and 0 columns Presolve time: 0.11s Presolved: 1018 rows, 120 columns, 7052 nonzeros Variable types: 0 continuous, 120 integer (120 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.653481e+01, 520 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 16.53481 0 116 7.00000 16.53481 136% - 0s H 0 0 8.0000000 16.53481 107% - 0s 0 0 15.92876 0 120 8.00000 15.92876 99.1% - 0s 0 0 15.79241 0 119 8.00000 15.79241 97.4% - 0s H 0 0 9.0000000 15.79241 75.5% - 0s 0 0 15.71856 0 118 9.00000 15.71856 74.7% - 0s 0 0 15.67629 0 120 9.00000 15.67629 74.2% - 0s 0 0 15.66075 0 120 9.00000 15.66075 74.0% - 0s 0 0 15.65955 0 120 9.00000 15.65955 74.0% - 1s 0 0 15.65464 0 120 9.00000 15.65464 73.9% - 1s 0 0 15.65086 0 120 9.00000 15.65086 73.9% - 1s 0 0 15.65058 0 120 9.00000 15.65058 73.9% - 1s 0 0 15.65041 0 120 9.00000 15.65041 73.9% - 1s 0 0 15.64886 0 120 9.00000 15.64886 73.9% - 1s 0 2 15.64215 0 120 9.00000 15.64215 73.8% - 2s H 335 101 10.0000000 13.27086 32.7% 62.4 3s Cutting planes: Clique: 126 Explored 478 nodes (28448 simplex iterations) in 4.07 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%