Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:40:15 2013 Optimize a model with 2200 rows, 400200 columns and 800200 nonzeros Presolve time: 1.10s Presolved: 2200 rows, 400200 columns, 800200 nonzeros Variable types: 400000 continuous, 200 integer (200 binary) Root relaxation: objective 3.804652e+05, 12468 iterations, 1.78 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 380465.239 0 5 - 380465.239 - - 3s H 0 0 394113.00000 380465.239 3.46% - 4s 0 0 380529.922 0 3 394113.000 380529.922 3.45% - 6s 0 0 380533.610 0 2 394113.000 380533.610 3.45% - 7s H 0 0 385359.47887 380533.610 1.25% - 7s H 0 0 385176.00000 380533.610 1.21% - 7s 0 0 380536.883 0 2 385176.000 380536.883 1.20% - 8s 0 0 380536.883 0 5 385176.000 380536.883 1.20% - 11s 0 0 380536.883 0 3 385176.000 380536.883 1.20% - 12s 0 0 380536.883 0 2 385176.000 380536.883 1.20% - 12s H 0 0 385168.00000 380536.883 1.20% - 13s 0 0 380536.883 0 2 385168.000 380536.883 1.20% - 13s 0 0 380536.883 0 2 385168.000 380536.883 1.20% - 14s 0 0 380537.184 0 3 385168.000 380537.184 1.20% - 14s 0 0 380541.611 0 1 385168.000 380541.611 1.20% - 15s 0 0 380541.611 0 1 385168.000 380541.611 1.20% - 15s 0 0 380541.611 0 1 385168.000 380541.611 1.20% - 16s 0 0 380541.611 0 1 385168.000 380541.611 1.20% - 17s H 0 0 384964.00000 380541.611 1.15% - 17s 0 0 380541.611 0 1 384964.000 380541.611 1.15% - 17s 0 0 380541.611 0 1 384964.000 380541.611 1.15% - 18s 0 2 380545.797 0 1 384964.000 380545.797 1.15% - 19s 2 4 380553.592 2 2 384964.000 380553.592 1.15% 59.0 20s H 4 4 382757.00000 380554.545 0.58% 34.2 20s H 8 8 382435.00000 380620.486 0.47% 40.1 21s H 9 7 381311.00000 380623.909 0.18% 35.8 21s H 15 10 381266.00000 380654.518 0.16% 39.6 22s * 16 8 16 380760.00000 380654.518 0.03% 38.1 22s Cutting planes: Implied bound: 73 Flow cover: 5 Explored 26 nodes (22643 simplex iterations) in 24.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.807600000000e+05, best bound 3.807331611773e+05, gap 0.0070%