Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:57:49 2012 Optimize a model with 3535 rows, 120 columns and 7070 nonzeros Presolve removed 2541 rows and 0 columns Presolve time: 0.12s Presolved: 994 rows, 120 columns, 6815 nonzeros Variable types: 0 continuous, 120 integer (120 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.651780e+01, 478 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 16.51780 0 117 8.00000 16.51780 106% - 0s H 0 0 9.0000000 16.51780 83.5% - 0s 0 0 16.20405 0 120 9.00000 16.20405 80.0% - 0s 0 0 16.16577 0 120 9.00000 16.16577 79.6% - 0s 0 0 16.11057 0 120 9.00000 16.11057 79.0% - 0s H 0 0 10.0000000 16.11057 61.1% - 0s 0 0 16.05361 0 119 10.00000 16.05361 60.5% - 0s 0 0 16.04880 0 119 10.00000 16.04880 60.5% - 0s 0 0 16.01695 0 119 10.00000 16.01695 60.2% - 1s 0 0 16.00447 0 120 10.00000 16.00447 60.0% - 1s 0 0 15.97984 0 119 10.00000 15.97984 59.8% - 1s 0 0 15.95832 0 119 10.00000 15.95832 59.6% - 1s 0 0 15.94970 0 120 10.00000 15.94970 59.5% - 1s 0 0 15.94927 0 120 10.00000 15.94927 59.5% - 1s 0 2 15.94755 0 120 10.00000 15.94755 59.5% - 2s Cutting planes: Clique: 100 Zero half: 1 Explored 303 nodes (22773 simplex iterations) in 3.77 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%