Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:10:54 2013 Optimize a model with 1650 rows, 225150 columns and 450150 nonzeros Presolve time: 0.54s Presolved: 1650 rows, 225150 columns, 450150 nonzeros Variable types: 225000 continuous, 150 integer (150 binary) Root relaxation: objective 2.564201e+05, 8269 iterations, 0.55 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 256420.056 0 10 - 256420.056 - - 1s H 0 0 283018.00000 256420.056 9.40% - 1s H 0 0 264445.00000 256420.056 3.03% - 2s 0 0 257084.750 0 12 264445.000 257084.750 2.78% - 3s 0 0 257165.284 0 9 264445.000 257165.284 2.75% - 3s 0 0 257172.942 0 9 264445.000 257172.942 2.75% - 4s 0 0 257181.372 0 10 264445.000 257181.372 2.75% - 4s 0 0 257187.025 0 9 264445.000 257187.025 2.74% - 5s 0 0 257190.208 0 8 264445.000 257190.208 2.74% - 6s 0 0 257200.119 0 8 264445.000 257200.119 2.74% - 6s 0 0 257200.997 0 8 264445.000 257200.997 2.74% - 7s 0 0 257200.997 0 8 264445.000 257200.997 2.74% - 7s 0 0 257200.997 0 10 264445.000 257200.997 2.74% - 11s 0 0 257200.997 0 12 264445.000 257200.997 2.74% - 12s 0 0 257200.997 0 9 264445.000 257200.997 2.74% - 13s 0 0 257200.997 0 9 264445.000 257200.997 2.74% - 13s 0 0 257200.997 0 10 264445.000 257200.997 2.74% - 14s 0 0 257200.997 0 8 264445.000 257200.997 2.74% - 14s 0 0 257200.997 0 8 264445.000 257200.997 2.74% - 15s 0 0 257200.997 0 8 264445.000 257200.997 2.74% - 15s 0 0 257200.997 0 8 264445.000 257200.997 2.74% - 16s 0 2 257204.087 0 8 264445.000 257204.087 2.74% - 19s 4 6 257495.624 4 5 264445.000 257299.641 2.70% 186 20s H 10 10 260225.42512 257299.641 1.12% 172 21s H 11 11 260166.68000 257299.641 1.10% 166 21s H 12 12 259384.78873 257299.641 0.80% 152 21s H 18 15 258209.00000 257299.641 0.35% 158 22s H 21 14 258082.00000 257299.641 0.30% 142 23s * 24 13 22 258033.00000 257299.641 0.28% 128 23s 39 23 257843.083 13 1 258033.000 257376.518 0.25% 132 25s * 42 22 15 257982.00000 257376.518 0.23% 127 25s H 61 38 257909.00000 257378.394 0.21% 112 26s * 65 38 23 257864.00000 257378.394 0.19% 107 26s * 67 35 22 257834.00000 257378.394 0.18% 104 26s 103 37 cutoff 6 257834.000 257587.775 0.10% 108 30s 160 26 cutoff 7 257834.000 257643.860 0.07% 113 35s Cutting planes: Implied bound: 404 Flow cover: 22 Explored 192 nodes (38694 simplex iterations) in 36.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.578340000000e+05, best bound 2.578084276963e+05, gap 0.0099%