Opened 12 years ago

Closed 12 years ago

## #288 closed bug (fixed)

# redSB leads to infinite loop in std

Reported by: | Oleksandr | Owned by: | hannes |
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Priority: | major | Milestone: | 3-1-2 and higher |

Component: | singular-kernel | Version: | 3-1-1 |

Keywords: | Cc: |

### Description (last modified by )

> ring r = 0, (y), (a(-1), dp); y+1; 1+y > std(ideal(1+y)); _[1]=1+y > option(redSB); // due to this "reduced SB" option > std(ideal(1+y)); // std never stops!!!

the Singularg outputs (in an endless loop):

// ***dPolyError: monoms p and p->next are equal occured at occured for poly: addr:0x7f552dc6baf0 size:40 allocated at ../kernel/pInline1.h:100 // ***dPolyError: monoms p and p->next are equal occured at occured for poly: addr:0x7f552dcd2230 size:40 allocated at ../kernel/p_Copy__T.cc:25 // ***dPolyError: monoms p and p->next are equal occured at occured for poly: addr:0x7f552dcd2230 size:40 allocated at ../kernel/p_Copy__T.cc:25 // ***dPolyError: monoms p and p->next are equal occured at occured for poly: addr:0x7f552dc6baf0 size:40 allocated at ../kernel/pInline1.h:100 // ***dPolyError: monoms p and p->next are equal occured at occured for poly: addr:0x7f552dcd2380 size:40 allocated at ../kernel/p_Copy__T.cc:25 // ***dPolyError: monoms p and p->next are equal occured at occured for poly: addr:0x7f552dcd2380 size:40 allocated at ../kernel/p_Copy__T.cc:25 // ***dPolyError: monoms p and p->next are equal occured at occured for poly: addr:0x7f552dc6baf0 size:40 allocated at ../kernel/pInline1.h:100 // ***dPolyError: monoms p and p->next are equal occured at occured for poly: addr:0x7f552dcd24d0 size:40 allocated at ../kernel/p_Copy__T.cc:25 // ***dPolyError: monoms p and p->next are equal occured at occured for poly: addr:0x7f552dcd24d0 size:40 allocated at ../kernel/p_Copy__T.cc:25 // ***dPolyError: monoms p and p->next are equal occured at occured for poly: addr:0x7f552dc6baf0 size:40 allocated at ../kernel/pInline1.h:100

and so on...

### Change History (3)

### comment:1 Changed 12 years ago by

### comment:2 Changed 12 years ago by

Description: | modified (diff) |
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btw,

or

do NOT expose this behavior.

the weighting vector with negative entries seems to be guilty...