gurobi - Код ошибки = 10004 Невозможно получить атрибут 'X'
Я получаю сообщение об ошибке в моем файле c ++ / gurobi:
Код ошибки = 10004 Невозможно получить атрибут 'X'
Я читал, что это может иметь какое-то отношение к этикеткам? Но я не вижу, как возникает проблема. Это работает для некоторых входных файлов, но не для других. Итак, я создал игрушечный файл, t5.txt во вложении. Этот файл не работает, но удаление последнего столбца и установка 8-7 исправляет его. Я озадачен...
Ниже приведен вывод model.write. Кажется, все имеет смысл, есть идеи, что я делаю не так? Всякий раз, когда я делаю model.write (test.sol), программа останавливается, поэтому, похоже, что-то не так с решением>
Вложения: main.cpp ->https://dl.dropboxusercontent.com/u/13564139/main.cpp
input.txt ->https://dl.dropboxusercontent.com/u/13564139/t5.txt
Maximize
15 student_has_projects4.1
Subject To
R0: student_has_projects0.0 + student_has_projects1.0
+ student_has_projects2.0 + student_has_projects3.0
+ student_has_projects4.0 + student_has_projects5.0
+ student_has_projects6.0 + student_has_projects7.0 <= 4
R1: student_has_projects1.0 + student_has_projects2.0 >= 1
R2: student_has_projects2.0 + 2 student_has_projects5.0 <= 2
R3: student_has_projects2.0 + 2 student_has_projects5.0 >= 1
R4: student_has_projects0.0 + student_has_projects3.0
+ student_has_projects4.0 + student_has_projects6.0
+ student_has_projects7.0 >= 1
R5: student_has_projects2.0 + student_has_projects5.0 <= 1
R6: student_has_projects0.1 + student_has_projects1.1
+ student_has_projects2.1 + student_has_projects3.1
+ student_has_projects4.1 + student_has_projects5.1
+ student_has_projects6.1 + student_has_projects7.1 <= 4
R7: student_has_projects1.1 + student_has_projects2.1 >= 1
R8: student_has_projects2.1 + 2 student_has_projects5.1 <= 2
R9: student_has_projects2.1 + 2 student_has_projects5.1 >= 1
R10: student_has_projects0.1 + student_has_projects3.1
+ student_has_projects4.1 + student_has_projects6.1
+ student_has_projects7.1 >= 1
R11: student_has_projects2.1 + student_has_projects5.1 <= 1
R12: student_has_projects0.2 + student_has_projects1.2
+ student_has_projects2.2 + student_has_projects3.2
+ student_has_projects4.2 + student_has_projects5.2
+ student_has_projects6.2 + student_has_projects7.2 <= 4
R13: student_has_projects1.2 + student_has_projects2.2 >= 1
R14: student_has_projects2.2 + 2 student_has_projects5.2 <= 2
R15: student_has_projects2.2 + 2 student_has_projects5.2 >= 1
R16: student_has_projects0.2 + student_has_projects3.2
+ student_has_projects4.2 + student_has_projects6.2
+ student_has_projects7.2 >= 1
R17: student_has_projects2.2 + student_has_projects5.2 <= 1
R18: student_has_projects0.0 + student_has_projects0.1
+ student_has_projects0.2 = 1
R19: student_has_projects1.0 + student_has_projects1.1
+ student_has_projects1.2 = 1
R20: student_has_projects2.0 + student_has_projects2.1
+ student_has_projects2.2 = 1
R21: student_has_projects3.0 + student_has_projects3.1
+ student_has_projects3.2 = 1
R22: student_has_projects4.0 + student_has_projects4.1
+ student_has_projects4.2 = 1
R23: student_has_projects5.0 + student_has_projects5.1
+ student_has_projects5.2 = 1
R24: student_has_projects6.0 + student_has_projects6.1
+ student_has_projects6.2 = 1
R25: student_has_projects7.0 + student_has_projects7.1
+ student_has_projects7.2 = 1
Bounds
Binaries
student_has_projects0.0 student_has_projects0.1 student_has_projects0.2
student_has_projects1.0 student_has_projects1.1 student_has_projects1.2
student_has_projects2.0 student_has_projects2.1 student_has_projects2.2
student_has_projects3.0 student_has_projects3.1 student_has_projects3.2
student_has_projects4.0 student_has_projects4.1 student_has_projects4.2
student_has_projects5.0 student_has_projects5.1 student_has_projects5.2
student_has_projects6.0 student_has_projects6.1 student_has_projects6.2
student_has_projects7.0 student_has_projects7.1 student_has_projects7.2
End