Build (method = -2) #dp: 4000 Step-3' Graph: 659 vertices and 1970 arcs (0.04s) Step-4' Graph: 183 vertices and 1018 arcs (0.04s) #V4/#V3 = 0.28 #A4/#A3 = 0.52 Ready! (0.04s) Optimize a model with 243 rows, 1019 columns and 2695 nonzeros Presolve removed 38 rows and 91 columns Presolve time: 0.01s Presolved: 205 rows, 928 columns, 2501 nonzeros Variable types: 0 continuous, 928 integer (6 binary) Found heuristic solution: objective 2563.0000000 Found heuristic solution: objective 2098.0000000 Optimize a model with 205 rows, 928 columns and 2501 nonzeros Presolved: 205 rows, 928 columns, 2501 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.456e+03 Factor NZ : 5.452e+03 Factor Ops : 1.855e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 5.18675326e+04 -1.62910029e+05 5.72e+05 2.22e-16 1.05e+03 0s 1 1.43104598e+04 -6.17921199e+04 8.87e+04 1.82e-14 1.75e+02 0s 2 4.01800839e+03 -2.33538897e+04 1.03e+04 9.21e-15 2.82e+01 0s 3 2.58069912e+03 -8.99775686e+03 1.65e+03 1.03e-14 7.80e+00 0s 4 1.99587620e+03 -3.67773783e+03 1.30e+02 9.70e-15 3.10e+00 0s 5 1.70836859e+03 -1.14028287e+03 5.15e+01 8.47e-15 1.53e+00 0s 6 1.55319513e+03 1.50096402e+01 1.67e+01 9.78e-15 8.21e-01 0s 7 1.51216053e+03 1.37101669e+03 5.71e+00 9.12e-15 7.58e-02 0s 8 1.49402630e+03 1.49369856e+03 1.59e-12 8.43e-15 1.74e-04 0s 9 1.49400003e+03 1.49399970e+03 2.50e-12 7.80e-15 1.74e-07 0s 10 1.49400000e+03 1.49400000e+03 1.31e-12 9.25e-15 1.74e-10 0s Barrier solved model in 10 iterations and 0.01 seconds Optimal objective 1.49400000e+03 Root relaxation: objective 1.494000e+03, 624 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1494.0000000 1494.00000 0.0% - 0s Explored 0 nodes (624 simplex iterations) in 0.03 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.494000000000e+03, best bound 1.494000000000e+03, gap 0.0% Preprocessing time: 0.05 seconds Gurobi run time: 0.03 seconds Total run time: 0.08 seconds Objective: 1494 Solution: 27 x [6] 13 x [6, 56] 1 x [44, 45] 13 x [26] 8 x [26, 49] 47 x [20, 26, 49] 10 x [26, 46] 15 x [26, 46, 57] 2 x [28] 4 x [52] 28 x [55] 9 x [32, 55] 11 x [18] 13 x [18, 40] 2 x [8, 18] 41 x [18, 32, 44] 15 x [11, 56] 48 x [58] 17 x [34] 3 x [9, 34] 3 x [14, 34] 29 x [14, 24, 34] 11 x [7] 18 x [7, 53] 3 x [31] 11 x [14, 31] 13 x [31, 51] 52 x [31, 39] 6 x [30, 31] 3 x [8, 19] 6 x [19, 20] 50 x [14, 43, 53] 19 x [8, 43] 1 x [36] 31 x [36, 42, 57] 20 x [5] 41 x [5, 21] 3 x [5, 21, 39] 11 x [5, 29] 29 x [47] 24 x [1, 47] 25 x [47, 49] 94 x [2] 5 x [10, 42] 5 x [44, 50] 8 x [33] 18 x [33, 48] 58 x [33, 42] 9 x [16, 33] 19 x [37] 35 x [37, 59] 3 x [14, 37] 3 x [4] 19 x [4, 35, 53] 40 x [4, 38] 28 x [22, 25] 31 x [25, 59] 32 x [15, 22] 1 x [23] 3 x [13, 23] 29 x [8, 13, 23] 8 x [23, 60] 3 x [23, 38] 17 x [20, 23] 8 x [27] 3 x [13, 27] 24 x [27, 38] 38 x [16, 27] 1 x [8, 27] 8 x [54] 18 x [13, 38, 54] 19 x [8, 54] 8 x [41] 27 x [1, 41] 41 x [3] 39 x [3, 12] 8 x [3, 53] 18 x [15] 27 x [8, 15, 17] 3 x [15, 16]