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Question: Is this new crash in Maple 2025.2?

Question:Is this new crash in Maple 2025.2?

nm 11558 Maple 2025
ode differential-equations crash odetest
4 hours ago
0

I only have Maple 2025.2 on this new PC. Could someone just run this code on earlier Maple version and see if they get same crash?

I am finding many crashes in Maple 2025.2 (3 so far) and I am only 25% in my test.  But not sure if this is new or was there in Maple 2025.1 or earlier. 

I am trying to document all the new problems in Maple 2025.2.

Here is the worksheet (save all your work just in case).

> 

restart;
> 

interface(version);

`Standard Worksheet Interface, Maple 2025.2, Windows 10, November 11 2025 Build ID 1971053`

> 

SupportTools:-Version();

`The Customer Support Updates version in the MapleCloud is 29 and is the same as the version installed in this computer, created June 23, 2025, 10:25 hours Eastern Time.`

> 

Physics:-Version();

`The "Physics Updates" version in the MapleCloud is 1881 and is the same as the version installed in this computer, created 2025, October 7, 16:4 hours Pacific Time.`

> 

ode:=(4+2*x-y(x))*diff(y(x),x)+5+x-2*y(x) = 0;

(4+2*x-y(x))*(diff(y(x), x))+5+x-2*y(x) = 0

> 

sol:=y(x) = ((2*(x+11)*(x+1)^4*exp(12*_C1)-29*(x+103/29)*(x+1)^2*exp(6*_C1)+27*x+81)
*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^4+(-2*(x-4)
*(x+1)^4*exp(12*_C1)-34*(x+1)^2*(x+67/17)*exp(6*_C1)+54*x+162)*RootOf(2+(exp(6*
_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^2-(x-1)*(x+1)^4*exp(12*_C1)-\
14*(x+1)^2*(x+29/7)*exp(6*_C1)+27*x+81)/((10*(x+1)^4*exp(12*_C1)+27-37*(x+1)^2*
exp(6*_C1))*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^
4+(5*(x+1)^4*exp(12*_C1)+54-50*(x+1)^2*exp(6*_C1))*RootOf(2+(exp(6*_C1)*x^2+2*
exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^2+(x+1)^4*exp(12*_C1)+27-22*(x+1)^2*exp
(6*_C1));

y(x) = ((2*(x+11)*(x+1)^4*exp(12*_C1)-29*(x+103/29)*(x+1)^2*exp(6*_C1)+27*x+81)*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^4+(-2*(x-4)*(x+1)^4*exp(12*_C1)-34*(x+1)^2*(x+67/17)*exp(6*_C1)+54*x+162)*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^2-(x-1)*(x+1)^4*exp(12*_C1)-14*(x+1)^2*(x+29/7)*exp(6*_C1)+27*x+81)/((10*(x+1)^4*exp(12*_C1)+27-37*(x+1)^2*exp(6*_C1))*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^4+(5*(x+1)^4*exp(12*_C1)+54-50*(x+1)^2*exp(6*_C1))*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^2+(x+1)^4*exp(12*_C1)+27-22*(x+1)^2*exp(6*_C1))

> 

infolevel[odetest]:=5;

5

> 

odetest(sol,ode);

odetest: Performing an implicit solution test

odetest: Trying to eliminate constants using the order: [_C1]

odetest: Trying to eliminate _C1

> 

 

 

Download maple_crash_odetest_2025_2_nov_26_2025.mw

Update

Based on comment below, I just checked. If I remove "C:Usersmemaple\toolbox2025Maple Customer Support Updateslib" and "C:Usersmemaple\toolbox2025Physics Updateslib"  from libname, then the crash goes away !

> 

restart;
> 

interface(version);

`Standard Worksheet Interface, Maple 2025.2, Windows 10, November 11 2025 Build ID 1971053`

> 

SupportTools:-Version();

`The Customer Support Updates version in the MapleCloud is 29 and is the same as the version installed in this computer, created June 23, 2025, 10:25 hours Eastern Time.`

> 

Physics:-Version();

`The "Physics Updates" version in the MapleCloud is 1881 and is the same as the version installed in this computer, created 2025, October 7, 16:4 hours Pacific Time.`

> 

libname

"C:\Users\me\maple\toolbox\2025\Physics Updates\lib", "C:\Users\me\maple\toolbox\2025\Maple Customer Support Updates\lib", "C:\Program Files\Maple 2025\lib"

> 

libname:=libname[3];

"C:\Program Files\Maple 2025\lib"

> 

ode:=(4+2*x-y(x))*diff(y(x),x)+5+x-2*y(x) = 0;

(4+2*x-y(x))*(diff(y(x), x))+5+x-2*y(x) = 0

> 

sol:=y(x) = ((2*(x+11)*(x+1)^4*exp(12*_C1)-29*(x+103/29)*(x+1)^2*exp(6*_C1)+27*x+81)
*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^4+(-2*(x-4)
*(x+1)^4*exp(12*_C1)-34*(x+1)^2*(x+67/17)*exp(6*_C1)+54*x+162)*RootOf(2+(exp(6*
_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^2-(x-1)*(x+1)^4*exp(12*_C1)-\
14*(x+1)^2*(x+29/7)*exp(6*_C1)+27*x+81)/((10*(x+1)^4*exp(12*_C1)+27-37*(x+1)^2*
exp(6*_C1))*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^
4+(5*(x+1)^4*exp(12*_C1)+54-50*(x+1)^2*exp(6*_C1))*RootOf(2+(exp(6*_C1)*x^2+2*
exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^2+(x+1)^4*exp(12*_C1)+27-22*(x+1)^2*exp
(6*_C1));

y(x) = ((2*(x+11)*(x+1)^4*exp(12*_C1)-29*(x+103/29)*(x+1)^2*exp(6*_C1)+27*x+81)*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^4+(-2*(x-4)*(x+1)^4*exp(12*_C1)-34*(x+1)^2*(x+67/17)*exp(6*_C1)+54*x+162)*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^2-(x-1)*(x+1)^4*exp(12*_C1)-14*(x+1)^2*(x+29/7)*exp(6*_C1)+27*x+81)/((10*(x+1)^4*exp(12*_C1)+27-37*(x+1)^2*exp(6*_C1))*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^4+(5*(x+1)^4*exp(12*_C1)+54-50*(x+1)^2*exp(6*_C1))*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^2+(x+1)^4*exp(12*_C1)+27-22*(x+1)^2*exp(6*_C1))

> 

infolevel[odetest]:=5;

5

> 

odetest(sol,ode);

odetest: Performing an implicit solution test

odetest: Trying to eliminate constants using the order: [_C1]

odetest: Trying to eliminate _C1

odetest: Successful elimination of c__1

odetest: length of implicit solutions after isolating _Cn constants: 164

odetest: length after collecting objects and simplifying coefficients: 126

odetest: length after Solve w.r.t yn: 66

odetest: length after collect @ normal @ eval the ODE at the implicit solution: 0

Successful implicit test

0

> 

 

 

Download maple_crash_odetest_2025_2_nov_26_2025_V2.mw

I also checked if libname had PHYSICS on it but no SUPPORT tools, and the crash also goes away. So the bug seems to be when adding SUPPORT tools. 


 

> 

restart;
> 

interface(version);

`Standard Worksheet Interface, Maple 2025.2, Windows 10, November 11 2025 Build ID 1971053`

> 

SupportTools:-Version();

`The Customer Support Updates version in the MapleCloud is 29 and is the same as the version installed in this computer, created June 23, 2025, 10:25 hours Eastern Time.`

> 

Physics:-Version();

`The "Physics Updates" version in the MapleCloud is 1881 and is the same as the version installed in this computer, created 2025, October 7, 16:4 hours Pacific Time.`

> 

libname

"C:\Users\me\maple\toolbox\2025\Physics Updates\lib", "C:\Users\me\maple\toolbox\2025\Maple Customer Support Updates\lib", "C:\Program Files\Maple 2025\lib"

> 

libname:=libname[1],libname[3]

"C:\Users\me\maple\toolbox\2025\Physics Updates\lib", "C:\Program Files\Maple 2025\lib"

> 

libname

"C:\Users\me\maple\toolbox\2025\Physics Updates\lib", "C:\Program Files\Maple 2025\lib"

> 

ode:=(4+2*x-y(x))*diff(y(x),x)+5+x-2*y(x) = 0;

(4+2*x-y(x))*(diff(y(x), x))+5+x-2*y(x) = 0

> 

sol:=y(x) = ((2*(x+11)*(x+1)^4*exp(12*_C1)-29*(x+103/29)*(x+1)^2*exp(6*_C1)+27*x+81)
*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^4+(-2*(x-4)
*(x+1)^4*exp(12*_C1)-34*(x+1)^2*(x+67/17)*exp(6*_C1)+54*x+162)*RootOf(2+(exp(6*
_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^2-(x-1)*(x+1)^4*exp(12*_C1)-\
14*(x+1)^2*(x+29/7)*exp(6*_C1)+27*x+81)/((10*(x+1)^4*exp(12*_C1)+27-37*(x+1)^2*
exp(6*_C1))*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^
4+(5*(x+1)^4*exp(12*_C1)+54-50*(x+1)^2*exp(6*_C1))*RootOf(2+(exp(6*_C1)*x^2+2*
exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^2+(x+1)^4*exp(12*_C1)+27-22*(x+1)^2*exp
(6*_C1));

y(x) = ((2*(x+11)*(x+1)^4*exp(12*_C1)-29*(x+103/29)*(x+1)^2*exp(6*_C1)+27*x+81)*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^4+(-2*(x-4)*(x+1)^4*exp(12*_C1)-34*(x+1)^2*(x+67/17)*exp(6*_C1)+54*x+162)*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^2-(x-1)*(x+1)^4*exp(12*_C1)-14*(x+1)^2*(x+29/7)*exp(6*_C1)+27*x+81)/((10*(x+1)^4*exp(12*_C1)+27-37*(x+1)^2*exp(6*_C1))*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^4+(5*(x+1)^4*exp(12*_C1)+54-50*(x+1)^2*exp(6*_C1))*RootOf(2+(exp(6*_C1)*x^2+2*exp(6*_C1)*x+exp(6*_C1)-1)*_Z^6+3*_Z^2)^2+(x+1)^4*exp(12*_C1)+27-22*(x+1)^2*exp(6*_C1))

> 

infolevel[odetest]:=5;

5

> 

odetest(sol,ode);

odetest: Performing an implicit solution test

odetest: Trying to eliminate constants using the order: [_C1]

odetest: Trying to eliminate _C1

odetest: Successful elimination of c__1

odetest: length of implicit solutions after isolating _Cn constants: 164

odetest: length after collecting objects and simplifying coefficients: 126

odetest: length after Solve w.r.t yn: 66

odetest: length after collect @ normal @ eval the ODE at the implicit solution: 0

Successful implicit test

0

> 

 

 

Download maple_crash_odetest_2025_2_nov_26_2025_V3.mw

The crash only happens when SUPPORT tools is added:
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