Build (method = -2) #dp: 2070 Step-3' Graph: 86 vertices and 269 arcs (0.01s) Step-4' Graph: 21 vertices and 139 arcs (0.01s) #V4/#V3 = 0.24 #A4/#A3 = 0.52 Ready! (0.01s) Optimize a model with 82 rows, 140 columns and 383 nonzeros Presolve removed 22 rows and 23 columns Presolve time: 0.00s Presolved: 60 rows, 117 columns, 316 nonzeros Variable types: 0 continuous, 117 integer (0 binary) Found heuristic solution: objective 1.195000e+08 Found heuristic solution: objective 8.349998e+07 Optimize a model with 60 rows, 117 columns and 316 nonzeros Presolved: 60 rows, 117 columns, 316 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.170e+02 Factor NZ : 9.890e+02 Factor Ops : 2.083e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.27157423e+09 -9.27650450e+08 4.09e+08 2.22e-16 2.35e+07 0s 1 2.83989067e+08 -3.21623938e+08 4.46e+07 4.44e-16 3.49e+06 0s 2 8.84511163e+07 -2.58603184e+06 2.84e+05 4.33e-15 3.33e+05 0s 3 6.45904671e+07 4.17902024e+07 2.64e+03 1.11e-15 8.26e+04 0s 4 6.00914846e+07 5.90743594e+07 6.13e+00 3.33e-16 3.69e+03 0s 5 6.00000141e+07 5.99999685e+07 1.21e-03 2.24e-16 1.65e-01 0s 6 6.00000000e+07 6.00000000e+07 5.22e-08 5.07e-13 2.15e-07 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 6.00000000e+07 Warning: Markowitz tolerance tightened to 0.5 Root relaxation: objective 6.000000e+07, 68 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 6.000000e+07 6.0000e+07 0.0% - 0s Explored 0 nodes (68 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 6.000000000000e+07, best bound 6.000000000000e+07, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.02 seconds Objective: 60000000 Solution: 3000000 x [22, 61] 2000000 x [24, 60] 2000000 x [20, 59] 2000000 x [18, 58] 4000000 x [19, 57] 1000000 x [27, 56] 2000000 x [17, 55] 2000000 x [12, 54] 2000000 x [8, 53] 2000000 x [32, 52] 2000000 x [8, 51] 2000000 x [7, 50] 1000000 x [32, 49] 2000000 x [5, 48] 1000000 x [12, 47] 1000000 x [4, 46] 1000000 x [2, 45] 3000000 x [33, 44] 1000000 x [2, 43] 1000000 x [1, 42] 4000000 x [35, 41] 2000000 x [4, 40] 2000000 x [38, 39] 1000000 x [3, 37] 1000000 x [9, 36] 2000000 x [6, 34] 3000000 x [26, 31] 1000000 x [13, 30] 2000000 x [10, 29] 1000000 x [25, 28] 1000000 x [15, 23] 2000000 x [11, 21] 1000000 x [14, 16]