Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:07:54 2013 Optimize a model with 748 rows, 46308 columns and 92548 nonzeros Presolve time: 0.07s Presolved: 748 rows, 46308 columns, 92548 nonzeros Variable types: 46240 continuous, 68 integer (68 binary) Root relaxation: objective 8.137437e+04, 1875 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 81374.3733 0 7 - 81374.3733 - - 0s H 0 0 87039.000000 81374.3733 6.51% - 0s 0 0 81523.8157 0 6 87039.0000 81523.8157 6.34% - 0s 0 0 81594.6989 0 6 87039.0000 81594.6989 6.26% - 0s 0 0 81618.0847 0 4 87039.0000 81618.0847 6.23% - 0s 0 0 81626.4764 0 3 87039.0000 81626.4764 6.22% - 0s H 0 0 85981.118478 81626.4764 5.06% - 0s H 0 0 85547.000000 81626.4764 4.58% - 0s 0 0 81626.5595 0 3 85547.0000 81626.5595 4.58% - 0s 0 0 81633.7530 0 3 85547.0000 81633.7530 4.57% - 0s H 0 0 85204.000000 81633.7530 4.19% - 0s 0 0 81634.4274 0 2 85204.0000 81634.4274 4.19% - 0s H 0 0 83708.547061 81634.4274 2.48% - 0s H 0 0 83447.000000 81634.4274 2.17% - 0s 0 0 81634.4274 0 2 83447.0000 81634.4274 2.17% - 1s H 0 0 83445.000000 81634.4274 2.17% - 1s 0 0 81634.4274 0 2 83445.0000 81634.4274 2.17% - 1s H 0 0 81796.000000 81634.4274 0.20% - 1s 0 0 81676.5977 0 5 81796.0000 81676.5977 0.15% - 1s 0 0 81708.8854 0 2 81796.0000 81708.8854 0.11% - 1s 0 0 81708.8854 0 2 81796.0000 81708.8854 0.11% - 1s 0 0 81708.8854 0 2 81796.0000 81708.8854 0.11% - 1s 0 0 81709.3422 0 2 81796.0000 81709.3422 0.11% - 1s 0 0 81709.9269 0 2 81796.0000 81709.9269 0.11% - 1s 0 0 81709.9269 0 2 81796.0000 81709.9269 0.11% - 1s 0 0 81710.1460 0 2 81796.0000 81710.1460 0.10% - 1s 0 0 81710.1460 0 2 81796.0000 81710.1460 0.10% - 1s 0 0 81710.1460 0 2 81796.0000 81710.1460 0.10% - 1s Cutting planes: Implied bound: 25 Flow cover: 4 Explored 0 nodes (3292 simplex iterations) in 1.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.179600000000e+04, best bound 8.179600000000e+04, gap 0.0%