Gurobi 5.0.1 (linux64) logging started Tue Dec 11 02:28:01 2012 Optimize a model with 2190 rows, 2160 columns and 7147 nonzeros Presolve removed 90 rows and 51 columns Presolve time: 0.01s Presolved: 2100 rows, 2109 columns, 6946 nonzeros Variable types: 1400 continuous, 709 integer (709 binary) Root relaxation: objective 1.851315e+05, 1058 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 185131.496 0 365 - 185131.496 - - 0s H 0 0 333981.00000 185131.496 44.6% - 0s 0 0 229199.028 0 103 333981.000 229199.028 31.4% - 0s H 0 0 250024.00000 229199.028 8.33% - 0s 0 0 230802.763 0 72 250024.000 230802.763 7.69% - 0s 0 0 231244.451 0 45 250024.000 231244.451 7.51% - 0s 0 0 231304.392 0 21 250024.000 231304.392 7.49% - 0s 0 0 231306.831 0 21 250024.000 231306.831 7.49% - 0s 0 2 231307.961 0 21 250024.000 231307.961 7.49% - 0s H 54 50 232258.00000 231309.259 0.41% 3.8 3s 74 71 232153.679 63 5 232258.000 231309.259 0.41% 4.3 5s H 81 74 232240.00000 231309.259 0.40% 4.1 5s 153 126 232226.320 52 4 232240.000 231317.685 0.40% 4.3 10s 230 185 231977.217 29 8 232240.000 231332.653 0.39% 4.3 15s H 253 186 232202.00000 231332.653 0.37% 4.5 16s H 286 200 232183.00000 231335.136 0.37% 4.5 18s H 297 112 231652.00000 231335.136 0.14% 4.8 19s 302 115 231622.362 34 3 231652.000 231335.136 0.14% 4.7 20s H 374 153 231573.00000 231337.255 0.10% 4.7 23s 390 154 231342.338 7 14 231573.000 231338.333 0.10% 4.7 25s 456 198 231407.011 14 15 231573.000 231340.877 0.10% 4.6 30s 526 229 231397.009 16 9 231573.000 231341.842 0.10% 4.5 35s 589 267 cutoff 17 231573.000 231345.224 0.10% 4.6 40s H 600 257 231531.00000 231347.095 0.08% 4.6 41s 604 260 231522.420 37 26 231531.000 231347.095 0.08% 4.5 49s 605 261 231382.455 9 18 231531.000 231347.095 0.08% 4.5 55s 614 267 231406.128 17 12 231531.000 231353.355 0.08% 8.0 60s 674 283 231454.013 27 9 231531.000 231370.736 0.07% 7.7 65s 742 280 231423.583 20 8 231531.000 231379.681 0.07% 7.3 70s H 770 262 231504.00000 231379.681 0.05% 7.2 72s 806 274 231480.094 37 9 231504.000 231383.595 0.05% 7.1 75s 875 271 231461.568 28 8 231504.000 231386.777 0.05% 6.8 80s 937 278 231464.090 38 14 231504.000 231399.449 0.05% 6.7 85s H 940 227 231476.00000 231399.449 0.03% 6.7 85s 994 225 231431.959 25 9 231476.000 231404.475 0.03% 6.6 90s H 1041 208 231475.00000 231406.392 0.03% 6.4 93s 1059 206 231450.320 37 3 231475.000 231408.626 0.03% 6.4 95s H 1068 156 231463.00000 231408.626 0.02% 6.4 95s * 1079 95 40 231433.00000 231409.254 0.01% 6.3 96s Cutting planes: Gomory: 21 Flow cover: 75 Flow path: 28 Explored 1094 nodes (8515 simplex iterations) in 97.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.314329999998e+05, best bound 2.314101842726e+05, gap 0.0099%