Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:44:50 2013 Optimize a model with 2200 rows, 400200 columns and 800200 nonzeros Presolve time: 1.13s Presolved: 2200 rows, 400200 columns, 800200 nonzeros Variable types: 400000 continuous, 200 integer (200 binary) Root relaxation: objective 3.724756e+05, 10596 iterations, 1.52 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 372475.580 0 6 - 372475.580 - - 2s H 0 0 402966.00000 372475.580 7.57% - 4s 0 0 372547.113 0 2 402966.000 372547.113 7.55% - 7s H 0 0 392885.88060 372547.113 5.18% - 7s H 0 0 392771.00000 372547.113 5.15% - 7s 0 0 372547.113 0 2 392771.000 372547.113 5.15% - 8s 0 0 372547.113 0 2 392771.000 372547.113 5.15% - 9s 0 0 372547.120 0 3 392771.000 372547.120 5.15% - 10s 0 0 372550.259 0 2 392771.000 372550.259 5.15% - 11s H 0 0 392485.00000 372550.259 5.08% - 11s 0 0 372550.259 0 2 392485.000 372550.259 5.08% - 11s H 0 0 392439.00000 372550.259 5.07% - 12s 0 0 372550.259 0 2 392439.000 372550.259 5.07% - 12s 0 0 372550.259 0 2 392439.000 372550.259 5.07% - 13s 0 0 372550.259 0 2 392439.000 372550.259 5.07% - 14s 0 0 372550.259 0 2 392439.000 372550.259 5.07% - 15s 0 2 372551.284 0 2 392439.000 372551.284 5.07% - 18s H 1 1 376325.52239 372551.284 1.00% 0.0 18s 6 8 372578.368 6 2 376325.522 372578.368 1.00% 75.2 20s H 8 6 373434.00000 372580.636 0.23% 58.2 20s H 9 5 372840.00000 372582.587 0.07% 54.3 20s * 15 5 14 372832.00000 372618.511 0.06% 73.1 21s * 32 6 8 372814.00000 372639.665 0.05% 77.5 24s * 36 0 10 372761.00000 372761.000 0.0% 72.0 24s Cutting planes: Implied bound: 113 Flow cover: 3 Explored 37 nodes (13897 simplex iterations) in 24.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.727610000000e+05, best bound 3.727610000000e+05, gap 0.0%