Gurobi 5.0.1 (linux64) logging started Mon Dec 10 23:29:47 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 331407.00000 194802.608 41.2% - 0s 0 0 240679.784 0 72 331407.000 240679.784 27.4% - 0s 0 0 242586.632 0 31 331407.000 242586.632 26.8% - 0s 0 0 242780.856 0 11 331407.000 242780.856 26.7% - 0s 0 0 242912.636 0 7 331407.000 242912.636 26.7% - 0s 0 0 242937.656 0 2 331407.000 242937.656 26.7% - 0s H 0 0 243099.00000 242937.656 0.07% - 0s 0 2 242943.521 0 2 243099.000 242943.521 0.06% - 0s * 54 18 20 243059.00000 242991.353 0.03% 2.2 0s * 73 16 7 243058.00000 243002.420 0.02% 2.2 0s * 103 0 6 243023.00000 243023.000 0.0% 2.2 0s Cutting planes: Gomory: 20 Implied bound: 1 Flow cover: 254 Flow path: 131 Explored 104 nodes (1762 simplex iterations) in 0.28 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%