Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:58:11 2013 Optimize a model with 429 rows, 15249 columns and 30459 nonzeros Presolve time: 0.02s Presolved: 429 rows, 15249 columns, 30459 nonzeros Variable types: 15210 continuous, 39 integer (39 binary) Root relaxation: objective 3.915960e+04, 604 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 39159.5964 0 10 - 39159.5964 - - 0s H 0 0 41404.000000 39159.5964 5.42% - 0s H 0 0 39764.000000 39159.5964 1.52% - 0s 0 0 39405.6375 0 5 39764.0000 39405.6375 0.90% - 0s 0 0 39439.8959 0 6 39764.0000 39439.8959 0.82% - 0s 0 0 39441.7504 0 4 39764.0000 39441.7504 0.81% - 0s 0 0 39442.3273 0 4 39764.0000 39442.3273 0.81% - 0s H 0 0 39662.000000 39442.3273 0.55% - 0s 0 0 39442.3429 0 1 39662.0000 39442.3429 0.55% - 0s 0 0 39442.3429 0 1 39662.0000 39442.3429 0.55% - 0s 0 0 39442.3429 0 10 39662.0000 39442.3429 0.55% - 0s 0 0 39442.3429 0 6 39662.0000 39442.3429 0.55% - 0s 0 0 39442.3429 0 4 39662.0000 39442.3429 0.55% - 0s 0 0 39442.3429 0 3 39662.0000 39442.3429 0.55% - 0s 0 0 39442.3429 0 4 39662.0000 39442.3429 0.55% - 0s 0 0 39442.3429 0 3 39662.0000 39442.3429 0.55% - 0s H 0 0 39661.000000 39442.3429 0.55% - 0s 0 0 39442.3429 0 1 39661.0000 39442.3429 0.55% - 0s 0 0 39442.3429 0 1 39661.0000 39442.3429 0.55% - 0s 0 2 39442.9507 0 1 39661.0000 39442.9507 0.55% - 0s H 9 5 39573.000000 39495.5600 0.20% 31.9 0s * 10 6 9 39519.000000 39495.5600 0.06% 29.7 0s * 11 3 9 39517.000000 39495.5600 0.05% 27.1 0s Cutting planes: Implied bound: 57 Flow cover: 9 Explored 15 nodes (1959 simplex iterations) in 0.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.951700000000e+04, best bound 3.951700000000e+04, gap 0.0%