Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:25:15 2013 Optimize a model with 627 rows, 32547 columns and 65037 nonzeros Presolve time: 0.04s Presolved: 627 rows, 32547 columns, 65037 nonzeros Variable types: 32490 continuous, 57 integer (57 binary) Root relaxation: objective 5.480036e+04, 1046 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 54800.3605 0 9 - 54800.3605 - - 0s H 0 0 57610.000000 54800.3605 4.88% - 0s 0 0 55014.1487 0 6 57610.0000 55014.1487 4.51% - 0s 0 0 55047.8516 0 5 57610.0000 55047.8516 4.45% - 0s H 0 0 57599.000000 55047.8516 4.43% - 0s 0 0 55058.5391 0 4 57599.0000 55058.5391 4.41% - 0s H 0 0 57534.000000 55058.5391 4.30% - 0s 0 0 55074.7536 0 4 57534.0000 55074.7536 4.27% - 0s H 0 0 57408.000000 55074.7536 4.06% - 0s 0 0 55077.2596 0 4 57408.0000 55077.2596 4.06% - 0s H 0 0 57398.000000 55077.2596 4.04% - 0s 0 0 55078.8768 0 3 57398.0000 55078.8768 4.04% - 0s H 0 0 56469.061538 55078.8768 2.46% - 0s H 0 0 55796.000000 55078.8768 1.29% - 0s 0 0 55078.9271 0 4 55796.0000 55078.9271 1.29% - 0s H 0 0 55709.000000 55078.9271 1.13% - 0s 0 0 55080.6589 0 3 55709.0000 55080.6589 1.13% - 0s 0 0 55080.8947 0 4 55709.0000 55080.8947 1.13% - 0s 0 0 55080.8973 0 3 55709.0000 55080.8973 1.13% - 0s 0 0 55080.8973 0 3 55709.0000 55080.8973 1.13% - 0s 0 0 55080.8973 0 3 55709.0000 55080.8973 1.13% - 0s 0 0 55080.8973 0 9 55709.0000 55080.8973 1.13% - 1s H 0 0 55529.000000 55080.8973 0.81% - 1s 0 0 55080.8973 0 6 55529.0000 55080.8973 0.81% - 1s 0 0 55080.8973 0 5 55529.0000 55080.8973 0.81% - 1s 0 0 55080.8973 0 4 55529.0000 55080.8973 0.81% - 1s 0 0 55080.8973 0 4 55529.0000 55080.8973 0.81% - 1s 0 0 55080.8973 0 4 55529.0000 55080.8973 0.81% - 1s 0 0 55080.8973 0 3 55529.0000 55080.8973 0.81% - 1s 0 0 55080.8973 0 3 55529.0000 55080.8973 0.81% - 1s 0 0 55080.8973 0 3 55529.0000 55080.8973 0.81% - 1s 0 0 55080.8973 0 4 55529.0000 55080.8973 0.81% - 1s 0 0 55080.8973 0 4 55529.0000 55080.8973 0.81% - 1s 0 0 55080.8973 0 3 55529.0000 55080.8973 0.81% - 1s 0 0 55080.8973 0 3 55529.0000 55080.8973 0.81% - 1s 0 0 55080.8973 0 3 55529.0000 55080.8973 0.81% - 1s 0 2 55080.9912 0 3 55529.0000 55080.9912 0.81% - 1s H 4 3 55367.909091 55135.0556 0.42% 39.2 1s H 7 5 55330.436364 55135.0556 0.35% 37.0 1s H 9 5 55301.000000 55135.0556 0.30% 30.3 1s * 10 3 9 55261.000000 55135.0556 0.23% 32.8 1s * 19 3 8 55257.000000 55195.9091 0.11% 32.7 1s Cutting planes: Implied bound: 82 Flow cover: 8 Explored 25 nodes (3339 simplex iterations) in 1.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.525700000000e+04, best bound 5.525700000000e+04, gap 0.0%