Build (method = -2) #dp: 3544 Step-3' Graph: 114 vertices and 359 arcs (0.02s) Step-4' Graph: 29 vertices and 189 arcs (0.02s) #V4/#V3 = 0.25 #A4/#A3 = 0.53 Ready! (0.02s) Optimize a model with 110 rows, 190 columns and 517 nonzeros Presolve removed 29 rows and 30 columns Presolve time: 0.00s Presolved: 81 rows, 160 columns, 429 nonzeros Variable types: 0 continuous, 160 integer (1 binary) Found heuristic solution: objective 494.0000000 Found heuristic solution: objective 335.0000000 Found heuristic solution: objective 305.0000000 Optimize a model with 81 rows, 160 columns and 429 nonzeros Presolve removed 1 rows and 1 columns Presolved: 80 rows, 159 columns, 427 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.570e+02 Factor NZ : 1.049e+03 Factor Ops : 2.101e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 7.14529568e+03 -4.06369564e+03 1.21e+03 2.22e-16 7.84e+01 0s 1 1.39404450e+03 -1.44536481e+03 1.28e+02 3.33e-16 1.15e+01 0s 2 3.52827540e+02 -6.38943592e+00 1.28e+00 2.22e-15 9.84e-01 0s 3 2.62051972e+02 1.95368552e+02 1.19e-03 1.03e-15 1.79e-01 0s 4 2.50695567e+02 2.48153673e+02 4.91e-05 2.61e-16 6.83e-03 0s 5 2.50000083e+02 2.49999821e+02 8.12e-09 2.22e-16 7.03e-07 0s 6 2.50000000e+02 2.50000000e+02 1.19e-13 2.22e-16 7.27e-13 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 2.50000000e+02 Root relaxation: objective 2.500000e+02, 77 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 (77 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: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.03 seconds Objective: 250 Solution: 8 x [25, 81] 2 x [13, 81] 10 x [3, 80] 1 x [1, 80] 5 x [29, 79] 6 x [34, 78] 7 x [11, 77] 5 x [24, 76] 3 x [18, 75] 7 x [35, 74] 2 x [7, 74] 3 x [2, 73] 7 x [26, 72] 1 x [1, 72] 8 x [20, 71] 2 x [4, 71] 6 x [32, 70] 6 x [23, 69] 4 x [13, 68] 5 x [15, 67] 4 x [46, 66] 12 x [42, 65] 5 x [47, 64] 6 x [49, 63] 1 x [46, 63] 8 x [50, 62] 4 x [6, 61] 2 x [51, 60] 9 x [52, 59] 1 x [51, 59] 5 x [53, 58] 9 x [55, 57] 4 x [4, 56] 1 x [1, 55] 7 x [22, 54] 1 x [1, 54] 1 x [47, 48] 7 x [28, 45] 2 x [1, 45] 1 x [42, 44] 6 x [37, 44] 4 x [33, 43] 5 x [16, 41] 5 x [17, 40] 5 x [21, 39] 3 x [10, 38] 7 x [5, 36] 5 x [30, 31] 6 x [14, 27] 1 x [15, 19] 8 x [9, 19] 7 x [8, 12]