Model name: '' - run #1 Objective: Maximize(R0) SUBMITTED Model size: 20672 constraints, 24621 variables, 73163 non-zeros. Sets: 0 GUB, 0 SOS. Using DUAL simplex for phase 1 and PRIMAL simplex for phase 2. The primal and dual simplex pricing strategy set to 'Devex'. Found feasibility by dual simplex after 17827 iter. Relaxed solution 771.885703213 after 19904 iter is B&B base. Feasible solution 771.884731989 after 20040 iter, 47 nodes (gap 0.0%) Improved solution 771.884751494 after 20082 iter, 64 nodes (gap 0.0%) Improved solution 771.884784013 after 20119 iter, 79 nodes (gap 0.0%) Improved solution 771.884784016 after 20192 iter, 110 nodes (gap 0.0%) Improved solution 771.884790513 after 20365 iter, 182 nodes (gap 0.0%) Improved solution 771.884790515 after 20439 iter, 215 nodes (gap 0.0%) Improved solution 771.884823028 after 20645 iter, 309 nodes (gap 0.0%) Improved solution 771.88482303 after 20829 iter, 389 nodes (gap 0.0%) Improved solution 771.884829528 after 21396 iter, 682 nodes (gap 0.0%) Improved solution 771.884829529 after 21749 iter, 862 nodes (gap 0.0%) Improved solution 771.884836037 after 23132 iter, 1460 nodes (gap 0.0%) Improved solution 771.88483604 after 23154 iter, 1467 nodes (gap 0.0%) Improved solution 771.884842537 after 23583 iter, 1637 nodes (gap 0.0%) Improved solution 771.884842539 after 23606 iter, 1644 nodes (gap 0.0%) Improved solution 771.884875052 after 23935 iter, 1782 nodes (gap 0.0%) Improved solution 771.884875054 after 24098 iter, 1867 nodes (gap 0.0%) Improved solution 771.884881552 after 26056 iter, 2887 nodes (gap 0.0%) Improved solution 771.884881553 after 26218 iter, 2980 nodes (gap 0.0%) Improved solution 771.884888061 after 33162 iter, 6608 nodes (gap 0.0%) Improved solution 771.884888062 after 33312 iter, 6691 nodes (gap 0.0%) Improved solution 771.884888064 after 33870 iter, 6966 nodes (gap 0.0%) Improved solution 771.884894564 after 33893 iter, 6973 nodes (gap 0.0%) Improved solution 771.884901063 after 37346 iter, 8772 nodes (gap 0.0%) Improved solution 771.884907567 after 43387 iter, 11895 nodes (gap 0.0%) Improved solution 771.884927076 after 43620 iter, 11998 nodes (gap 0.0%) Improved solution 771.884933576 after 43975 iter, 12227 nodes (gap 0.0%) Improved solution 771.884940075 after 53619 iter, 17618 nodes (gap 0.0%) Improved solution 771.884972588 after 59582 iter, 20741 nodes (gap 0.0%) Improved solution 771.884998594 after 66232 iter, 24690 nodes (gap 0.0%) Optimal solution 771.884998594 after 66298 iter, 24726 nodes (gap 0.0%). Excellent numeric accuracy ||*|| = 1.6185e-15 MEMO: lp_solve version 5.5.0.10 for 32 bit OS, with 64 bit REAL variables. In the total iteration count 66298, 11722 (17.7%) were bound flips. There were 12445 refactorizations, 0 triggered by time and 0 by density. ... on average 4.4 major pivots per refactorization. The largest [LUSOL v2.2.1.0] fact(B) had 57754 NZ entries, 1.0x largest basis. The maximum B&B level was 57, 0.0x MIP order, 50 at the optimal solution. The constraint matrix inf-norm is 64, with a dynamic range of 64000. Time to load data was 0.299 seconds, presolve used 0.189 seconds, ... 2115.086 seconds in simplex solver, in total 2115.574 seconds. Model name: '' - run #1 Objective: Maximize(R0) SUBMITTED Model size: 20672 constraints, 24621 variables, 73163 non-zeros. Sets: 0 GUB, 0 SOS. Using DUAL simplex for phase 1 and PRIMAL simplex for phase 2. The primal and dual simplex pricing strategy set to 'Devex'. Found feasibility by dual simplex after 2 iter. Relaxed solution 0 after 9294 iter is B&B base. Feasible solution 0 after 9294 iter, 0 nodes (gap 0.0%) Optimal solution 0 after 9294 iter, 0 nodes (gap 0.0%). Excellent numeric accuracy ||*|| = 0 MEMO: lp_solve version 5.5.0.10 for 32 bit OS, with 64 bit REAL variables. In the total iteration count 9294, 0 (0.0%) were bound flips. There were 39 refactorizations, 0 triggered by time and 0 by density. ... on average 238.3 major pivots per refactorization. The largest [LUSOL v2.2.1.0] fact(B) had 39176 NZ entries, 1.0x largest basis. The maximum B&B level was 1, 0.0x MIP order, 1 at the optimal solution. The constraint matrix inf-norm is 64, with a dynamic range of 64000. Time to load data was 0.338 seconds, presolve used 0.190 seconds, ... 229.068 seconds in simplex solver, in total 229.596 seconds. Vehicle Type: 0 Num:42 Trip segments:154