Build (method = -2) #dp: 5236 Step-3' Graph: 122 vertices and 398 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 646 nonzeros Presolve removed 44 rows and 45 columns Presolve time: 0.00s Presolved: 100 rows, 198 columns, 512 nonzeros Variable types: 0 continuous, 198 integer (1 binary) Found heuristic solution: objective 497.0000000 Found heuristic solution: objective 336.0000000 Found heuristic solution: objective 278.0000000 Optimize a model with 100 rows, 198 columns and 512 nonzeros Presolve removed 1 rows and 1 columns Presolved: 99 rows, 197 columns, 510 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.950e+02 Factor NZ : 1.512e+03 Factor Ops : 3.133e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.08718075e+04 -1.61843596e+04 2.91e+03 2.22e-16 2.03e+02 0s 1 2.47517188e+03 -4.42967930e+03 3.87e+02 8.88e-16 2.98e+01 0s 2 4.62958284e+02 -5.22914841e+02 6.89e+00 6.66e-15 2.36e+00 0s 3 3.53164969e+02 5.42360398e+01 3.23e-02 2.44e-15 6.62e-01 0s 4 2.71267340e+02 1.70192231e+02 3.31e-03 7.77e-16 2.24e-01 0s 5 2.52120160e+02 2.40080328e+02 5.65e-04 2.22e-16 2.66e-02 0s 6 2.50024818e+02 2.49934096e+02 2.56e-06 2.22e-16 2.01e-04 0s 7 2.50000000e+02 2.50000000e+02 4.26e-12 2.59e-16 3.43e-10 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 2.50000000e+02 Root relaxation: objective 2.500000e+02, 86 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 (86 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: 7 x [2, 100] 1 x [10, 99] 5 x [6, 99] 3 x [22, 98] 3 x [21, 97] 6 x [19, 96] 1 x [7, 96] 4 x [9, 95] 1 x [4, 95] 2 x [17, 94] 3 x [20, 93] 1 x [28, 92] 6 x [16, 92] 2 x [28, 91] 1 x [30, 90] 6 x [15, 90] 5 x [31, 89] 3 x [30, 88] 1 x [33, 87] 4 x [32, 87] 1 x [33, 86] 8 x [23, 85] 8 x [14, 84] 4 x [37, 83] 1 x [33, 83] 5 x [34, 82] 1 x [4, 82] 7 x [35, 81] 3 x [40, 80] 2 x [41, 79] 6 x [38, 78] 1 x [2, 78] 5 x [42, 77] 6 x [8, 76] 1 x [1, 76] 3 x [41, 75] 8 x [13, 74] 2 x [39, 73] 3 x [36, 72] 2 x [48, 71] 1 x [46, 71] 8 x [11, 70] 6 x [51, 69] 10 x [26, 68] 4 x [46, 67] 7 x [53, 66] 5 x [55, 65] 7 x [53, 64] 5 x [49, 63] 4 x [43, 62] 3 x [58, 61] 1 x [50, 61] 3 x [52, 60] 1 x [1, 60] 5 x [48, 59] 4 x [45, 57] 1 x [55, 56] 1 x [51, 56] 5 x [50, 54] 4 x [47, 47] 6 x [3, 44] 1 x [1, 44] 4 x [12, 29] 2 x [7, 29] 2 x [13, 27] 2 x [18, 25] 1 x [7, 24] 5 x [5, 24]