Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:55:28 2012 Optimize a model with 5629 rows, 150 columns and 11258 nonzeros Presolve removed 4092 rows and 0 columns Presolve time: 0.24s Presolved: 1537 rows, 150 columns, 11214 nonzeros Variable types: 0 continuous, 150 integer (150 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.871763e+01, 730 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18.71763 0 149 7.00000 18.71763 167% - 0s H 0 0 8.0000000 18.71763 134% - 0s H 0 0 9.0000000 18.71763 108% - 0s 0 0 18.50181 0 150 9.00000 18.50181 106% - 0s 0 0 18.42231 0 150 9.00000 18.42231 105% - 0s 0 0 18.40280 0 150 9.00000 18.40280 104% - 1s H 0 0 10.0000000 18.40280 84.0% - 1s 0 0 18.38565 0 150 10.00000 18.38565 83.9% - 1s 0 0 18.33355 0 150 10.00000 18.33355 83.3% - 1s 0 0 18.32556 0 150 10.00000 18.32556 83.3% - 1s 0 0 18.32218 0 150 10.00000 18.32218 83.2% - 1s 0 0 18.30457 0 150 10.00000 18.30457 83.0% - 2s 0 0 18.30105 0 150 10.00000 18.30105 83.0% - 2s 0 0 18.29977 0 150 10.00000 18.29977 83.0% - 2s 0 0 18.29140 0 150 10.00000 18.29140 82.9% - 2s 0 0 18.28896 0 150 10.00000 18.28896 82.9% - 2s 0 0 18.28891 0 150 10.00000 18.28891 82.9% - 3s 0 0 18.28402 0 150 10.00000 18.28402 82.8% - 3s 0 0 18.27951 0 149 10.00000 18.27951 82.8% - 3s 0 0 18.27212 0 150 10.00000 18.27212 82.7% - 3s 0 0 18.27193 0 150 10.00000 18.27193 82.7% - 3s 0 0 18.27035 0 150 10.00000 18.27035 82.7% - 4s 0 0 18.27025 0 150 10.00000 18.27025 82.7% - 4s 0 0 18.27019 0 150 10.00000 18.27019 82.7% - 4s 0 2 18.26954 0 150 10.00000 18.26954 82.7% - 5s 524 271 12.32833 27 62 10.00000 15.18057 51.8% 82.9 10s 610 295 14.93631 10 149 10.00000 14.93631 49.4% 79.4 15s 750 332 11.50958 80 76 10.00000 14.93631 49.4% 112 20s 1545 281 11.79102 41 58 10.00000 13.16244 31.6% 78.6 25s 1806 261 11.04103 29 39 10.00000 12.50000 25.0% 74.1 30s Cutting planes: Clique: 44 Explored 2278 nodes (148977 simplex iterations) in 31.56 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%