Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:58:08 2013 Optimize a model with 1700 rows, 28100 columns and 58050 nonzeros Presolve removed 100 rows and 150 columns Presolve time: 0.23s Presolved: 1600 rows, 27950 columns, 55900 nonzeros Variable types: 27000 continuous, 950 integer (950 binary) Root relaxation: objective 2.198499e+05, 2917 iterations, 0.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 219849.939 0 2 - 219849.939 - - 0s 0 0 219873.426 0 2 - 219873.426 - - 0s 0 0 219879.851 0 2 - 219879.851 - - 0s 0 0 219882.616 0 2 - 219882.616 - - 0s 0 0 219888.774 0 2 - 219888.774 - - 0s 0 0 219888.774 0 2 - 219888.774 - - 0s 0 0 219889.028 0 2 - 219889.028 - - 0s 0 0 219889.326 0 2 - 219889.326 - - 0s 0 0 219889.671 0 2 - 219889.671 - - 1s 0 0 219889.879 0 2 - 219889.879 - - 1s 0 0 219889.879 0 2 - 219889.879 - - 1s 0 0 219890.671 0 2 - 219890.671 - - 1s 0 0 219891.411 0 2 - 219891.411 - - 1s 0 0 219892.509 0 2 - 219892.509 - - 1s 0 0 219893.042 0 2 - 219893.042 - - 1s 0 0 219898.500 0 2 - 219898.500 - - 1s 0 0 219898.605 0 2 - 219898.605 - - 1s 0 0 219899.768 0 2 - 219899.768 - - 1s 0 0 219900.651 0 2 - 219900.651 - - 1s 0 0 219901.762 0 2 - 219901.762 - - 1s 0 0 219904.191 0 2 - 219904.191 - - 1s 0 0 219904.191 0 2 - 219904.191 - - 1s 0 0 219904.191 0 2 - 219904.191 - - 1s 0 0 219904.527 0 2 - 219904.527 - - 2s 0 0 219904.527 0 2 - 219904.527 - - 2s 0 0 219904.527 0 2 - 219904.527 - - 2s 0 0 219904.543 0 2 - 219904.543 - - 2s 0 0 219904.543 0 2 - 219904.543 - - 2s H 0 0 230738.17829 219904.543 4.70% - 2s 0 2 219909.558 0 2 230738.178 219909.558 4.69% - 2s 80 82 221414.840 80 1 230738.178 220428.050 4.47% 27.0 5s H 81 74 223614.65726 220428.050 1.43% 26.7 5s H 189 94 222979.22374 220428.050 1.14% 21.4 7s * 268 124 54 222906.26174 220461.740 1.10% 21.1 8s H 324 150 222755.61911 220536.266 1.00% 25.9 9s 382 202 222396.422 24 1 222755.619 220570.126 0.98% 26.4 10s H 459 215 222614.51338 220614.272 0.90% 26.3 10s * 524 231 35 222595.94693 220815.115 0.80% 27.8 11s H 594 189 222394.58964 220924.579 0.66% 28.9 12s * 696 185 54 222311.43857 221025.649 0.58% 28.9 14s 760 206 221518.021 12 1 222311.439 221091.954 0.55% 29.5 15s * 783 112 35 222013.13216 221091.954 0.41% 29.2 15s * 784 111 34 222011.69236 221091.954 0.41% 29.1 15s * 1008 79 14 221990.08222 221651.170 0.15% 33.9 18s Cutting planes: Flow cover: 17 Explored 1140 nodes (42167 simplex iterations) in 19.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.219900822228e+05, best bound 2.219686436280e+05, gap 0.0097%