Build (method = -2) #dp: 1022 Step-3' Graph: 39 vertices and 193 arcs (0.00s) Step-4' Graph: 27 vertices and 169 arcs (0.00s) #V4/#V3 = 0.69 #A4/#A3 = 0.88 Ready! (0.00s) Optimize a model with 87 rows, 170 columns and 462 nonzeros Presolve removed 72 rows and 118 columns Presolve time: 0.00s Presolved: 15 rows, 52 columns, 137 nonzeros Variable types: 0 continuous, 52 integer (5 binary) Found heuristic solution: objective 1977.0000000 Found heuristic solution: objective 1892.0000000 Optimize a model with 15 rows, 52 columns and 137 nonzeros Presolve removed 0 rows and 1 columns Presolved: 15 rows, 51 columns, 135 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 4.800e+01 Factor NZ : 1.200e+02 Factor Ops : 1.240e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.91002324e+03 -2.05172633e+03 1.15e+03 5.23e-02 1.34e+02 0s 1 2.29172386e+03 2.50291991e+02 1.46e+02 3.33e-16 2.54e+01 0s 2 1.80300531e+03 1.40739824e+03 8.50e+00 7.77e-16 3.75e+00 0s 3 1.67864268e+03 1.62248567e+03 9.48e-01 2.22e-16 5.19e-01 0s 4 1.66543338e+03 1.65853523e+03 1.84e-14 3.33e-16 6.33e-02 0s 5 1.66405722e+03 1.66375865e+03 5.00e-13 1.11e-16 2.74e-03 0s 6 1.66400000e+03 1.66400000e+03 4.90e-14 2.22e-16 3.01e-08 0s 7 1.66400000e+03 1.66400000e+03 7.83e-14 2.22e-16 3.09e-14 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 1.66400000e+03 Root relaxation: objective 1.664000e+03, 27 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1664.00000 0 5 1892.00000 1664.00000 12.1% - 0s H 0 0 1665.0000000 1664.00000 0.06% - 0s H 0 0 1664.0000000 1664.00000 0.0% - 0s Explored 0 nodes (30 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.664000000000e+03, best bound 1.664000000000e+03, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 1664 Solution: 39 x [22] 13 x [5] 2 x [50] 21 x [6, 50] 53 x [6, 46] 28 x [23] 16 x [4, 23] 33 x [31] 9 x [36] 36 x [52] 16 x [28] 14 x [10] 3 x [38] 42 x [19] 2 x [18] 32 x [17] 20 x [35] 12 x [48] 5 x [7] 20 x [60] 12 x [8] 37 x [26] 78 x [21] 27 x [14] 44 x [58] 20 x [57] 81 x [32] 19 x [34] 51 x [3, 47] 35 x [51] 35 x [3, 41] 5 x [12] 14 x [3, 12] 15 x [53] 4 x [49, 53] 38 x [16] 25 x [9, 49] 55 x [29] 48 x [42] 27 x [33] 11 x [20, 33] 8 x [20, 27] 49 x [40] 3 x [54] 5 x [30] 92 x [30, 59] 80 x [55] 22 x [11] 22 x [2, 56] 29 x [2, 43] 12 x [2, 24] 1 x [37, 45] 1 x [15, 37] 78 x [37, 39] 65 x [25, 45] 26 x [25, 44] 13 x [1, 13] 43 x [13, 13] 1 x [1, 44] 11 x [44, 44] 6 x [2, 2, 2]