Build (method = -2) #dp: 735 Step-3' Graph: 131 vertices and 386 arcs (0.00s) Step-4' Graph: 37 vertices and 198 arcs (0.00s) #V4/#V3 = 0.28 #A4/#A3 = 0.51 Ready! (0.00s) Optimize a model with 77 rows, 199 columns and 527 nonzeros Presolve removed 24 rows and 33 columns Presolve time: 0.00s Presolved: 53 rows, 166 columns, 440 nonzeros Variable types: 0 continuous, 166 integer (0 binary) Found heuristic solution: objective 3541.0000000 Found heuristic solution: objective 2165.0000000 Optimize a model with 53 rows, 166 columns and 440 nonzeros Presolved: 53 rows, 166 columns, 440 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.180e+02 Factor NZ : 6.370e+02 Factor Ops : 8.807e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.67294350e+04 -3.81561170e+04 8.92e+04 2.22e-16 8.47e+02 0s 1 7.68758756e+03 -1.29738634e+04 9.99e+03 8.88e-16 1.19e+02 0s 2 3.54957873e+03 -1.18810421e+03 3.48e+02 8.88e-16 1.48e+01 0s 3 2.75890020e+03 1.11790350e+03 3.34e-01 9.99e-16 4.68e+00 0s 4 2.31678233e+03 2.00819929e+03 1.31e-02 9.85e-16 8.79e-01 0s 5 2.18259528e+03 2.13233955e+03 1.75e-03 8.34e-16 1.43e-01 0s 6 2.16642354e+03 2.16441090e+03 1.54e-04 8.88e-16 5.73e-03 0s Barrier performed 6 iterations in 0.00 seconds Objective cutoff exceeded Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.165000000000e+03, best bound 2.165000000000e+03, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 2165 Solution: 64 x [1] 147 x [2] 24 x [3] 109 x [3, 40] 23 x [4, 39] 100 x [5, 38] 56 x [5, 39] 15 x [6, 34] 61 x [7, 35] 123 x [8, 34] 167 x [9, 33] 2 x [9, 34] 5 x [9, 36] 3 x [10, 30] 8 x [10, 35] 83 x [10, 37] 142 x [11, 31] 13 x [11, 35] 163 x [12, 32] 116 x [13, 30] 127 x [14, 28] 4 x [14, 29] 1 x [14, 30] 3 x [15, 26] 19 x [15, 27] 24 x [15, 34] 150 x [16, 26] 2 x [17, 22] 1 x [17, 25] 3 x [17, 26] 95 x [18] 34 x [18, 22] 77 x [19, 21] 18 x [19, 23] 8 x [19, 26] 107 x [20, 24] 68 x [20, 25]