Dear maintainers of wonderfull glpk solver, tho following error occured wile version 4.26 on attached ILP problem.
Any advice how to avoid such problems is welcome.
With kind regards
Zdenek
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Reading model section from ilpp_adctlvxxxx.mod...
137 lines were read
Reading data section from ilpp_adctlvxxxx.dat...
104 lines were read
Generating obj...
Generating calculate_crit...
Generating leave_once...
Generating fit_capacity...
Generating leave_depot...
Generating enter_leave...
Generating enter_depot...
Generating arrival_travel_arrival...
Generating before_latest...
Generating after_earliest...
Generating floating_shift...
Generating zero_enter_first...
Generating zero_leave_last...
Generating zero_diagonal...
Model has been successfully generated
lpx_write_cpxlp: writing problem data to `ilpp_adctlvxxxx.lp'...
glp_simplex: original LP has 937 rows, 561 columns, 3212 non-zeros
glp_simplex: presolved LP has 386 rows, 380 columns, 2080 non-zeros
lpx_adv_basis: size of triangular part = 376
0: objval = 0.000000000e+000 infeas = 1.000000000e+000 (10)
15: objval = 2.868686869e+000 infeas = 7.587469242e-017 (10)
* 15: objval = 2.868686869e+000 infeas = 2.775557562e-016 (10)
* 16: objval = 1.039612840e-012 infeas = 2.220446049e-016 (10)
OPTIMAL SOLUTION FOUND
Integer optimization begins...
+ 16: mip = not found yet >= -inf (1; 0)
+ 123: >>>>> 1.776200000e+004 >= 0.000000000e+000 100.0% (5; 0)
+ 575: >>>>> 1.738300000e+004 >= 0.000000000e+000 100.0% (14; 7)
+ 8998: mip = 1.738300000e+004 >= 0.000000000e+000 100.0% (81; 339)
+ 17836: mip = 1.738300000e+004 >= 0.000000000e+000 100.0% (167; 648)
+ 26841: mip = 1.738300000e+004 >= 0.000000000e+000 100.0% (258; 947)
+ 35668: mip = 1.738300000e+004 >= 0.000000000e+000 100.0% (343; 1269)
spx_simplex: warning: numerical instability (dual simplex)
+ 44471: mip = 1.738300000e+004 >= 0.000000000e+000 100.0% (422; 1596)
+ 54167: mip = 1.738300000e+004 >= 0.000000000e+000 100.0% (484; 1903)
GLPK internal error: x <= ub; file ..\src\glpios03.c, line 265
--
Zdenek Hanzalek
Department of Control Engineering, Faculty of Electrical Engineering
Czech Technical University in Prague, Karlovo namesti 13, 121 35 Prague 2,
Czech Republic
tel: +420 224355708 [EMAIL PROTECTED]
fax: +420 224355703 http://dce.felk.cvut.cz/hanzalek/
ilpp_adctlvxxxx.mod
Description: Binary data
ilpp_adctlvxxxx.dat
Description: Binary data
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