Build (method = -2) #dp: 5233 Step-3' Graph: 121 vertices and 396 arcs (0.02s) Step-4' Graph: 44 vertices and 242 arcs (0.02s) #V4/#V3 = 0.36 #A4/#A3 = 0.61 Ready! (0.02s) Optimize a model with 144 rows, 243 columns and 645 nonzeros Presolve removed 47 rows and 48 columns Presolve time: 0.00s Presolved: 97 rows, 195 columns, 503 nonzeros Variable types: 0 continuous, 195 integer (3 binary) Found heuristic solution: objective 485.0000000 Found heuristic solution: objective 415.0000000 Found heuristic solution: objective 279.0000000 Optimize a model with 97 rows, 195 columns and 503 nonzeros Presolved: 97 rows, 195 columns, 503 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.910e+02 Factor NZ : 1.506e+03 Factor Ops : 3.131e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.53685149e+04 -1.12329923e+04 3.61e+03 2.22e-16 2.01e+02 0s 1 3.45844313e+03 -4.13265300e+03 5.15e+02 7.77e-16 3.24e+01 0s 2 4.61155023e+02 -4.90247651e+02 1.22e+01 2.89e-15 2.40e+00 0s 3 3.19916679e+02 1.09882921e+02 5.37e-03 2.66e-15 4.71e-01 0s 4 2.54053363e+02 2.14276046e+02 4.89e-04 4.44e-16 8.92e-02 0s 5 2.50354969e+02 2.46453592e+02 3.91e-05 2.22e-16 8.75e-03 0s 6 2.50000204e+02 2.49999241e+02 5.00e-09 2.22e-16 2.16e-06 0s 7 2.50000000e+02 2.50000000e+02 2.90e-13 3.33e-16 2.83e-12 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 2.50000000e+02 Root relaxation: objective 2.500000e+02, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 250.0000000 250.00000 0.0% - 0s Explored 0 nodes (83 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.500000000000e+02, best bound 2.500000000000e+02, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.01 seconds Total run time: 0.03 seconds Objective: 250 Solution: 4 x [20, 100] 4 x [14, 99] 4 x [11, 98] 6 x [18, 97] 1 x [16, 97] 8 x [12, 96] 5 x [23, 95] 5 x [21, 94] 8 x [27, 93] 6 x [13, 92] 2 x [24, 91] 9 x [29, 90] 3 x [17, 89] 6 x [32, 88] 1 x [10, 88] 4 x [31, 87] 3 x [9, 86] 1 x [31, 85] 1 x [7, 85] 3 x [5, 84] 3 x [4, 83] 4 x [10, 82] 9 x [16, 81] 6 x [8, 80] 4 x [7, 79] 4 x [6, 78] 5 x [42, 77] 7 x [41, 76] 7 x [36, 75] 3 x [39, 74] 8 x [35, 73] 6 x [3, 72] 5 x [49, 71] 5 x [50, 70] 7 x [34, 69] 7 x [51, 68] 1 x [49, 68] 3 x [38, 67] 4 x [53, 66] 3 x [2, 65] 2 x [56, 64] 1 x [2, 64] 2 x [46, 63] 7 x [56, 62] 2 x [55, 61] 1 x [1, 61] 5 x [33, 60] 7 x [55, 59] 4 x [48, 58] 4 x [52, 57] 7 x [43, 54] 1 x [54, 54] 5 x [44, 47] 3 x [40, 45] 1 x [4, 37] 6 x [19, 30] 2 x [15, 30] 1 x [11, 28] 1 x [14, 26] 3 x [22, 25]