Gurobi 5.0.1 (linux64) logging started Mon Dec 10 23:30:06 2012 Optimize a model with 2190 rows, 2160 columns and 7151 nonzeros Presolve removed 110 rows and 67 columns Presolve time: 0.02s Presolved: 2080 rows, 2093 columns, 6892 nonzeros Variable types: 1394 continuous, 699 integer (699 binary) Root relaxation: objective 1.948026e+05, 1063 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 194802.608 0 380 - 194802.608 - - 0s H 0 0 332507.00000 194802.608 41.4% - 0s 0 0 240679.784 0 72 332507.000 240679.784 27.6% - 0s 0 0 242586.632 0 31 332507.000 242586.632 27.0% - 0s H 0 0 250211.00000 242586.632 3.05% - 0s 0 0 242780.856 0 11 250211.000 242780.856 2.97% - 0s 0 0 242912.636 0 7 250211.000 242912.636 2.92% - 0s 0 0 242937.656 0 2 250211.000 242937.656 2.91% - 0s 0 2 242943.521 0 2 250211.000 242943.521 2.90% - 1s H 7 7 244798.59904 242943.521 0.76% 2.1 1s H 20 20 243973.82051 242943.521 0.42% 3.5 2s * 27 17 24 243285.00000 242943.521 0.14% 3.5 2s H 29 4 243059.00000 242943.521 0.05% 3.2 3s 58 10 cutoff 7 243059.000 243002.420 0.02% 3.6 5s * 59 9 7 243058.00000 243002.420 0.02% 3.5 5s * 76 0 6 243023.00000 243023.000 0.0% 3.2 6s Cutting planes: Gomory: 22 Cover: 1 Flow cover: 264 Flow path: 136 Explored 77 nodes (1778 simplex iterations) in 6.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.430230000000e+05, best bound 2.430230000000e+05, gap 0.0%