Gurobi 5.0.1 (linux64) logging started Wed Apr 24 10:27:39 2013 Optimize a model with 122210 rows, 121110 columns and 484110 nonzeros Presolve removed 5301 rows and 0 columns Presolve time: 0.98s Presolved: 116909 rows, 121110 columns, 473508 nonzeros Variable types: 121000 continuous, 110 integer (110 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 17812 1.2475114e+05 3.030286e+04 0.000000e+00 5s 24938 1.4074938e+05 0.000000e+00 0.000000e+00 9s Root relaxation: objective 1.407494e+05, 24938 iterations, 9.36 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 140749.381 0 6 - 140749.381 - - 10s H 0 0 151622.00000 140749.381 7.17% - 11s H 0 0 143632.00000 140749.381 2.01% - 11s 0 0 140750.046 0 8 143632.000 140750.046 2.01% - 12s 0 0 140750.935 0 8 143632.000 140750.935 2.01% - 13s 0 0 140750.937 0 8 143632.000 140750.937 2.01% - 14s 0 0 140750.937 0 8 143632.000 140750.937 2.01% - 16s 0 2 140751.670 0 8 143632.000 140751.670 2.01% - 23s 7 9 141053.750 7 3 143632.000 140827.641 1.95% 294 26s H 10 10 142422.07143 140827.641 1.12% 305 27s H 16 15 141598.00000 140827.641 0.54% 285 29s H 17 15 141563.00000 140827.641 0.52% 280 29s 19 18 141358.000 17 1 141563.000 140827.641 0.52% 257 30s * 32 15 30 141404.00000 140827.641 0.41% 170 32s 45 27 141399.571 12 1 141404.000 140857.351 0.39% 196 35s * 60 18 13 141176.00000 140873.015 0.21% 185 37s 77 12 cutoff 5 141176.000 140934.881 0.17% 189 40s Cutting planes: Gomory: 2 Flow cover: 10 Explored 95 nodes (41252 simplex iterations) in 41.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.411760000000e+05, best bound 1.411645024025e+05, gap 0.0081%