Build (method = -2) #dp: 5709 Step-3' Graph: 42 vertices and 1036 arcs (0.02s) Step-4' Graph: 42 vertices and 1036 arcs (0.02s) #V4/#V3 = 1.00 #A4/#A3 = 1.00 Ready! (0.02s) Optimize a model with 122 rows, 1037 columns and 3064 nonzeros Presolve removed 36 rows and 36 columns Presolve time: 0.01s Presolved: 86 rows, 1001 columns, 2958 nonzeros Variable types: 0 continuous, 1001 integer (0 binary) Found heuristic solution: objective 1382.0000000 Found heuristic solution: objective 1186.0000000 Optimize a model with 86 rows, 1001 columns and 2958 nonzeros Presolved: 86 rows, 1001 columns, 2958 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.605e+03 Factor NZ : 2.660e+03 Factor Ops : 1.021e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.17210158e+04 -2.44278017e+04 7.43e+03 2.22e-16 1.57e+02 0s 1 3.06267753e+03 -1.38179495e+04 7.99e+02 2.78e-15 2.23e+01 0s 2 1.39046372e+03 -4.08039590e+03 1.97e+01 1.40e-14 2.88e+00 0s 3 1.08358486e+03 -4.30280422e+02 2.26e-01 1.89e-15 7.41e-01 0s 4 8.42077833e+02 1.71343072e+02 4.91e-02 1.89e-15 3.28e-01 0s 5 7.28002417e+02 3.91162261e+02 2.06e-02 1.56e-15 1.65e-01 0s 6 6.86351466e+02 5.00992334e+02 1.25e-02 1.28e-15 9.06e-02 0s 7 6.69762992e+02 5.26142569e+02 9.26e-03 1.26e-15 7.02e-02 0s 8 6.45828454e+02 5.96074591e+02 4.30e-03 1.48e-15 2.43e-02 0s 9 6.33922638e+02 6.02912459e+02 2.08e-03 1.66e-15 1.51e-02 0s 10 6.29048130e+02 6.17969114e+02 1.05e-03 1.26e-15 5.41e-03 0s 11 6.25605661e+02 6.22271115e+02 1.33e-04 1.43e-15 1.63e-03 0s 12 6.24563914e+02 6.23696696e+02 1.72e-05 1.39e-15 4.23e-04 0s 13 6.24281696e+02 6.24155416e+02 1.72e-06 1.46e-15 6.17e-05 0s 14 6.24250067e+02 6.24249700e+02 1.03e-09 1.42e-15 1.79e-07 0s 15 6.24250000e+02 6.24250000e+02 4.19e-13 1.44e-15 1.88e-13 0s Barrier solved model in 15 iterations and 0.01 seconds Optimal objective 6.24250000e+02 Root relaxation: objective 6.242500e+02, 369 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 624.25000 0 21 1186.00000 624.25000 47.4% - 0s H 0 0 625.0000000 624.25000 0.12% - 0s Explored 0 nodes (535 simplex iterations) in 0.04 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 6.250000000000e+02, best bound 6.250000000000e+02, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.04 seconds Total run time: 0.07 seconds Objective: 625 Solution: 4 x [39, 80] 24 x [24, 80] 4 x [39, 63] 16 x [10, 77] 1 x [16, 52] 8 x [15, 28, 68] 14 x [15, 16, 68] 5 x [42, 43] 8 x [37, 43, 72] 14 x [11, 34, 72] 10 x [2, 5] 2 x [2, 61, 70] 13 x [47, 59] 2 x [47, 61] 1 x [37, 47, 61] 1 x [15, 47, 61] 2 x [43, 47] 2 x [31, 43, 47] 8 x [39, 39, 47] 10 x [16, 56, 77] 4 x [16, 50, 56] 6 x [23, 40, 43] 11 x [11, 23, 40] 2 x [4, 11, 23] 8 x [19, 75] 4 x [19, 25] 1 x [4, 11, 19] 9 x [74, 78] 5 x [18, 78] 26 x [60, 65] 7 x [14, 79] 6 x [14, 65] 1 x [14, 18] 1 x [35, 64] 9 x [15, 55, 64] 27 x [62, 67] 4 x [35, 62] 14 x [18, 33, 70] 18 x [3, 12] 12 x [32, 73] 2 x [32, 58] 7 x [17, 45] 10 x [21, 32, 70] 8 x [4, 18, 21] 1 x [21, 28, 43] 27 x [8, 36] 9 x [1, 46] 10 x [1, 38] 1 x [1, 28, 61, 70] 32 x [53, 57] 8 x [17, 40, 49] 5 x [18, 49, 77] 27 x [29, 48] 1 x [15, 44, 53] 1 x [18, 44] 1 x [18, 44, 77] 29 x [41, 71] 13 x [7, 27] 3 x [26, 76] 2 x [26, 41] 8 x [7, 26] 17 x [54, 69] 5 x [22, 54] 2 x [22, 51] 31 x [13, 51] 11 x [9, 9] 2 x [35, 66, 69] 1 x [15, 16, 28, 61, 69] 9 x [20, 22, 76] 1 x [32, 61, 76] 4 x [17, 61, 76] 1 x [53, 65, 74] 1 x [6, 30, 74] 10 x [6, 30, 30, 74] 1 x [61, 65]