Build (method = -2) #dp: 14094 Step-3' Graph: 185 vertices and 663 arcs (0.08s) Step-4' Graph: 5 vertices and 303 arcs (0.08s) #V4/#V3 = 0.03 #A4/#A3 = 0.46 Ready! (0.08s) Optimize a model with 105 rows, 304 columns and 908 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.00s Presolved: 103 rows, 302 columns, 904 nonzeros Variable types: 0 continuous, 302 integer (3 binary) Found heuristic solution: objective 5420.0000000 Found heuristic solution: objective 5323.0000000 Optimize a model with 103 rows, 302 columns and 904 nonzeros Presolved: 103 rows, 302 columns, 904 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.030e+02 Factor NZ : 8.120e+02 Factor Ops : 1.258e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.86418118e+04 -1.55644681e+04 4.14e+02 4.35e-03 1.37e+02 0s 1 4.77454802e+03 -7.21219722e+03 2.56e+01 4.44e-16 2.14e+01 0s 2 2.64134232e+03 7.25256103e+02 2.54e-01 3.44e-15 2.75e+00 0s 3 1.86892066e+03 1.54375102e+03 1.28e-02 5.00e-16 4.63e-01 0s 4 1.80847336e+03 1.79355646e+03 1.38e-05 3.33e-16 2.12e-02 0s 5 1.80740893e+03 1.80709519e+03 1.06e-06 2.22e-16 4.46e-04 0s 6 1.80733333e+03 1.80733333e+03 1.72e-12 5.55e-16 6.95e-10 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 1.80733333e+03 Root relaxation: objective 1.807333e+03, 261 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1807.33333 0 4 5323.00000 1807.33333 66.0% - 0s H 0 0 1808.0000000 1807.33333 0.04% - 0s Explored 0 nodes (332 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.808000000000e+03, best bound 1.808000000000e+03, gap 0.0% Preprocessing time: 0.08 seconds Gurobi run time: 0.01 seconds Total run time: 0.10 seconds Objective: 1808 Solution: 3 x [31, 38, 88] 61 x [31, 80, 88] 2 x [32, 62, 88] 32 x [12, 37, 88] 4 x [44, 48, 64] 1 x [64, 67, 80] 2 x [10, 71, 84] 1 x [13, 84, 97] 3 x [31, 62, 100] 31 x [31, 79, 100] 2 x [28, 31, 98] 1 x [1, 42, 68] 12 x [68, 73, 83] 2 x [44, 68, 83] 69 x [42, 51, 70] 48 x [52, 54, 93] 85 x [10, 30, 89] 9 x [3, 9, 53] 65 x [59, 82, 97] 1 x [7, 52, 66] 8 x [61, 74, 96] 1 x [4, 20, 69] 58 x [20, 56, 75] 75 x [1, 8, 41] 66 x [58, 77, 81] 1 x [77, 78, 99] 81 x [15, 47, 57] 3 x [15, 91, 92] 19 x [50, 66, 74] 79 x [17, 45, 55] 1 x [17, 47, 92] 93 x [7, 44, 87] 1 x [4, 57, 57] 55 x [4, 46, 94] 43 x [48, 65, 90] 53 x [27, 76, 85] 93 x [18, 23, 91] 84 x [26, 40, 78] 2 x [38, 40, 49] 77 x [24, 69, 95] 1 x [22, 59, 90] 16 x [5, 22, 36] 23 x [2, 9, 99] 22 x [62, 73, 86] 57 x [14, 21, 67] 91 x [6, 35, 72] 1 x [63, 75, 79] 1 x [63, 75] 2 x [8, 63, 91] 15 x [28, 39, 63] 3 x [5, 13, 53] 3 x [6, 87, 98] 3 x [5, 43, 56] 31 x [13, 29, 32] 40 x [16, 34, 71] 1 x [19, 43, 45] 89 x [11, 25, 43] 1 x [45, 85, 95] 1 x [51, 60, 80] 1 x [11, 23, 46] 72 x [33, 49, 60] 3 x [9, 37, 98] 1 x [8, 44, 97] 1 x [67, 71] 1 x [5, 49, 76] 1 x [13, 76, 98]