Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:36:15 2012 Optimize a model with 5283 rows, 145 columns and 10566 nonzeros Presolve removed 3761 rows and 0 columns Presolve time: 0.20s Presolved: 1522 rows, 145 columns, 10869 nonzeros Variable types: 0 continuous, 145 integer (145 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.869157e+01, 735 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18.69157 0 139 7.00000 18.69157 167% - 0s H 0 0 8.0000000 18.69157 134% - 0s 0 0 17.77636 0 143 8.00000 17.77636 122% - 0s 0 0 17.66784 0 144 8.00000 17.66784 121% - 0s 0 0 17.58803 0 144 8.00000 17.58803 120% - 1s 0 0 17.52049 0 143 8.00000 17.52049 119% - 1s 0 0 17.49730 0 143 8.00000 17.49730 119% - 1s 0 0 17.46236 0 144 8.00000 17.46236 118% - 1s H 0 0 10.0000000 17.46236 74.6% - 1s 0 0 17.44351 0 144 10.00000 17.44351 74.4% - 1s 0 0 17.44114 0 144 10.00000 17.44114 74.4% - 1s 0 0 17.43582 0 142 10.00000 17.43582 74.4% - 2s 0 0 17.43457 0 143 10.00000 17.43457 74.3% - 2s 0 0 17.42852 0 140 10.00000 17.42852 74.3% - 2s 0 0 17.41921 0 143 10.00000 17.41921 74.2% - 2s 0 0 17.41599 0 144 10.00000 17.41599 74.2% - 2s 0 0 17.41504 0 144 10.00000 17.41504 74.2% - 2s 0 0 17.41480 0 144 10.00000 17.41480 74.1% - 3s 0 2 17.41051 0 144 10.00000 17.41051 74.1% - 3s 169 124 14.42281 6 79 10.00000 16.70890 67.1% 88.1 5s 686 193 11.85644 16 41 10.00000 13.34282 33.4% 78.0 10s Cutting planes: Clique: 257 Explored 950 nodes (71076 simplex iterations) in 12.47 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%