Build (method = -2) #dp: 2058 Step-3' Graph: 39 vertices and 312 arcs (0.01s) Step-4' Graph: 6 vertices and 246 arcs (0.01s) #V4/#V3 = 0.15 #A4/#A3 = 0.79 Ready! (0.01s) Optimize a model with 86 rows, 247 columns and 735 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.00s Presolved: 84 rows, 245 columns, 731 nonzeros Variable types: 0 continuous, 245 integer (30 binary) Found heuristic solution: objective 445.0000000 Found heuristic solution: objective 441.0000000 Optimize a model with 84 rows, 245 columns and 731 nonzeros Presolved: 84 rows, 245 columns, 731 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.470e+02 Factor NZ : 7.370e+02 Factor Ops : 1.228e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.41564526e+03 -1.28220049e+03 3.78e+01 6.29e-03 1.23e+01 0s 1 3.08530269e+02 -5.59085175e+02 1.76e-01 3.89e-16 1.64e+00 0s 2 2.06498165e+02 -1.09677280e+02 1.13e-02 7.77e-16 5.75e-01 0s 3 1.55125918e+02 1.34121222e+02 1.26e-13 3.33e-16 3.75e-02 0s 4 1.52048998e+02 1.51872136e+02 1.14e-13 2.22e-16 3.16e-04 0s 5 1.52000001e+02 1.51999991e+02 1.70e-13 1.63e-16 1.80e-08 0s 6 1.52000000e+02 1.52000000e+02 1.29e-13 1.29e-16 1.82e-14 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 1.52000000e+02 Root relaxation: objective 1.520000e+02, 210 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 152.0000000 152.00000 0.0% - 0s Explored 0 nodes (210 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.520000000000e+02, best bound 1.520000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.04 seconds Objective: 152 Solution: 5 x [1, 70, 73] 3 x [38, 63, 64] 10 x [27, 59, 61] 5 x [36, 52, 68] 8 x [31, 33, 44] 6 x [28, 30, 66] 10 x [43, 62, 75] 1 x [47, 56, 67] 3 x [14, 41, 57] 9 x [9, 53, 77] 4 x [20, 49, 65] 10 x [15, 72, 76] 1 x [28, 74, 80] 1 x [54, 74, 80] 6 x [4, 29, 56] 8 x [2, 35, 37] 5 x [34, 60, 78] 1 x [11, 45, 48] 1 x [3, 6, 6] 8 x [17, 26, 39] 4 x [18, 21, 69] 6 x [20, 47, 54] 3 x [7, 13, 47] 1 x [16, 25, 79] 1 x [5, 50, 71] 6 x [16, 23, 40] 9 x [8, 24, 46] 1 x [32, 55, 69] 1 x [22, 32, 42] 2 x [11, 12, 58] 6 x [19, 42, 50] 1 x [17, 32, 58] 6 x [10, 32, 51]