Build (method = -2) #dp: 1641 Step-3' Graph: 55 vertices and 258 arcs (0.01s) Step-4' Graph: 31 vertices and 210 arcs (0.01s) #V4/#V3 = 0.56 #A4/#A3 = 0.81 Ready! (0.01s) Optimize a model with 71 rows, 211 columns and 577 nonzeros Presolve removed 20 rows and 20 columns Presolve time: 0.00s Presolved: 51 rows, 191 columns, 519 nonzeros Variable types: 0 continuous, 191 integer (8 binary) Found heuristic solution: objective 1528.0000000 Found heuristic solution: objective 1136.0000000 Optimize a model with 51 rows, 191 columns and 519 nonzeros Presolved: 51 rows, 191 columns, 519 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.960e+02 Factor NZ : 6.920e+02 Factor Ops : 1.112e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.66551989e+04 -2.03791794e+04 1.69e+04 6.64e-02 3.96e+02 0s 1 4.11628022e+03 -5.98640046e+03 2.05e+03 6.66e-16 5.58e+01 0s 2 1.46954626e+03 -1.44771952e+03 1.70e+02 9.66e-15 9.09e+00 0s 3 9.37772175e+02 -6.76646957e+01 1.44e+01 3.00e-15 2.58e+00 0s 4 8.13060251e+02 4.25842183e+02 2.03e+00 9.99e-16 9.67e-01 0s 5 7.54772324e+02 6.15381875e+02 4.30e-01 4.44e-16 3.46e-01 0s 6 7.36086035e+02 6.92768175e+02 1.28e-01 4.44e-16 1.08e-01 0s 7 7.28631472e+02 7.17622608e+02 2.26e-02 3.33e-16 2.73e-02 0s 8 7.26960839e+02 7.26571112e+02 6.53e-04 4.44e-16 9.67e-04 0s 9 7.26866692e+02 7.26866606e+02 1.71e-07 3.49e-16 2.13e-07 0s 10 7.26866667e+02 7.26866667e+02 2.27e-13 3.97e-16 2.13e-10 0s Barrier solved model in 10 iterations and 0.00 seconds Optimal objective 7.26866667e+02 Root relaxation: objective 7.268667e+02, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 726.86667 0 12 1136.00000 726.86667 36.0% - 0s H 0 0 728.0000000 726.86667 0.16% - 0s H 0 0 727.0000000 726.86667 0.02% - 0s Explored 0 nodes (106 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 7.270000000000e+02, best bound 7.270000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 727 Solution: 51 x [36] 37 x [7, 24] 3 x [3] 1 x [3, 10] 8 x [3, 7, 10] 46 x [8, 25] 16 x [7, 12, 13] 18 x [13, 39] 2 x [8, 13, 39] 24 x [4, 39] 34 x [18] 14 x [18, 33] 8 x [18, 34] 9 x [18, 26, 26] 71 x [20, 34] 15 x [14] 16 x [14, 16] 16 x [1, 7, 14] 1 x [13, 14] 25 x [6, 29] 32 x [5, 6] 12 x [7, 15, 31] 2 x [15, 37] 6 x [27, 35] 1 x [27, 38] 43 x [22, 23] 4 x [19, 22] 24 x [9, 23] 1 x [6, 9, 28] 13 x [11, 13, 32] 75 x [32, 38, 40] 5 x [2, 11] 2 x [2, 11, 13] 32 x [2, 13, 30] 1 x [2, 13, 21] 32 x [2, 6, 17] 5 x [21, 21, 40] 5 x [21, 21, 38] 1 x [6, 21, 21] 16 x [15, 15, 15]