Gurobi 5.0.1 (linux64) logging started Sun Dec 9 21:45:13 2012 Optimize a model with 1110 rows, 1080 columns and 3583 nonzeros Presolve removed 40 rows and 25 columns Presolve time: 0.01s Presolved: 1070 rows, 1055 columns, 3486 nonzeros Variable types: 705 continuous, 350 integer (350 binary) Root relaxation: objective 1.019506e+05, 546 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 101950.649 0 179 - 101950.649 - - 0s H 0 0 161092.00000 101950.649 36.7% - 0s 0 0 119057.311 0 64 161092.000 119057.311 26.1% - 0s 0 0 119651.355 0 52 161092.000 119651.355 25.7% - 0s 0 0 119848.585 0 39 161092.000 119848.585 25.6% - 0s 0 0 119996.060 0 43 161092.000 119996.060 25.5% - 0s 0 2 120001.849 0 43 161092.000 120001.849 25.5% - 0s H 54 50 123659.00000 120001.849 2.96% 4.4 0s H 158 105 122661.00000 120003.680 2.17% 4.1 0s * 173 110 86 122593.00000 120003.680 2.11% 4.0 0s * 394 260 89 122514.00000 120055.175 2.01% 4.5 0s * 503 242 86 121862.00000 120063.060 1.48% 4.5 0s H 712 344 121634.00000 120247.265 1.14% 5.9 0s * 892 324 91 121618.00000 120250.629 1.12% 5.5 1s H 913 261 121403.00000 120279.594 0.93% 5.5 1s H 994 272 121387.00000 120279.594 0.91% 5.6 1s * 1030 244 92 121289.00000 120279.594 0.83% 5.5 1s * 1126 259 94 121275.00000 120291.459 0.81% 5.3 1s H 1429 174 121008.00000 120409.531 0.49% 5.1 1s * 1432 168 102 120996.00000 120409.531 0.48% 5.1 1s H 1688 168 120880.00000 120499.051 0.32% 4.9 1s H 1688 162 120868.00000 120499.051 0.31% 4.9 1s H 1800 173 120854.00000 120603.135 0.21% 4.9 1s Cutting planes: Gomory: 30 Cover: 5 Flow cover: 91 Flow path: 54 Explored 6417 nodes (24723 simplex iterations) in 3.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.208539999999e+05, best bound 1.208419546049e+05, gap 0.0100%