[SCIP] Assertion failed: (!SCIPsetIsInfinity(set, REALABS(val)))

[Natalia Perina]

Hi Gerald,

How do I use SCIP in gdb? I am making with the opt=dbg option and then
puttting it into gdb, but when I run gdb I get weird question marks as
output:

(gdb) backtrace

#0  0x000000010003b509 in
std::__1::allocator_traits<std::__1::allocator<SCIP_Var*>
>::construct<SCIP_Var*, SCIP_Var* const&> (__a=..., __p=0x10262ae00,

    __args=<error reading variable>) at
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/memory:1503

#1  std::__1::vector<SCIP_Var*, std::__1::allocator<SCIP_Var*>
>::__construct_at_end (this=0x0, __n=4334992704, __x=<error reading
variable>)

    at
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/vector:1005

#2  std::__1::vector<SCIP_Var*, std::__1::allocator<SCIP_Var*> >::__append
(this=0x0, __n=14, __x=@0x1024f4a00: 0x7fff7c2d6420)

    at
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/vector:1055

#3  0x00000001038bf140 in ?? ()

#4  0x00000000038bf220 in ?? ()

#5  0x0000000000000000 in ?? ()


Do you know why this is? Is there something special we should do to build
for gdb?

On Sun, Apr 23, 2017 at 4:19 PM, Gerald Gamrath <gamrath at zib.de> wrote:

> Hi Natalia,
>
> my first guess would be that you have very large coefficients in your
> constraints (i.e., larger than 1e+20). At least, the assert comes up since
> a coefficient with absolute value > 1e+20 is added to an LP row.
>
> If not, could you run again with gdb and check where the large value comes
> from, and perhaps send the backtrace?
>
> Best,
> Gerald
>
>
> Am 23.04.2017 um 20:57 schrieb Natalia Perina:
>
> Does any one know why I would be receiving this error when solving a scip
> instance:
>
> Assertion failed: (!SCIPsetIsInfinity(set, REALABS(val))), function
> SCIPvarAddToRow, file src/scip/var.c, line 13588.
>
> Abort trap: 6
>
> Or know what this means?
>
>
> Thanks,
>
> Natalia
>
>
>
> --
> Natalia Perina
> Princeton University l 2017
> nperina at princeton.edu
> 202 360 9536 <(202)%20360-9536>
>
>
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-- 
Natalia Perina
Princeton University l 2017
nperina at princeton.edu
202 360 9536
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