# submit a Bug report when using SCS solver

**URL:** <https://discourse.julialang.org/t/submit-a-bug-report-when-using-scs-solver/18080>\
**Category:** Modelling & Simulations\
**Created:** [November 27, 2018, 11:11pm UTC](https://discourse.julialang.org/t/submit-a-bug-report-when-using-scs-solver/18080 "2018-11-27T23:11:02Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Ryan](https://avatars.discourse-cdn.com/v4/letter/r/a8b319/32.png) [@Ryan](https://discourse.julialang.org/u/Ryan)\
**Post date:** [November 27, 2018, 11:11pm UTC](https://discourse.julialang.org/t/submit-a-bug-report-when-using-scs-solver/18080/1 "2018-11-27T23:11:02Z")

</div>

**bug report when using SCS solver**

Please submit a bug report with steps to reproduce this fault, and any error messages that follow (i

n their entirety). Thanks.

Exception: EXCEPTION\_ACCESS\_VIOLATION at 0x6669d61c – validateLinSys at /home/Tony/github/scs\linsy

s\common.c:47

while loading C:\Users\re876928\Desktop\Positive definite Matrix\New folder\sample\_case5\_modifyPposi

tive\_v5.jl, in expression starting on line 34

validateLinSys at /home/Tony/github/scs\linsys\common.c:41

validate at /home/Tony/github/scs\src\scs.c:615 [inlined]

scs\_init at /home/Tony/github/scs\src\scs.c:843

SCS\_init at C:\Users\re876928\AppData\Local\JuliaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\SCS\src\low\_level\_wra

pper.jl:13 [inlined]

SCS\_solve at C:\Users\re876928\AppData\Local\JuliaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\SCS\src\low\_level\_wr

apper.jl:44

#SCS\_solve#8 at C:\Users\re876928\AppData\Local\JuliaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\SCS\src\high\_leve

l\_wrapper.jl:140

unknown function (ip: 000000002B9CC406)

jl\_call\_fptr\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administra

tor/buildbot/worker/package\_win64/build/src\julia\_internal.h:339 [inlined]

jl\_call\_method\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administ

rator/buildbot/worker/package\_win64/build/src\julia\_internal.h:358 [inlined]

jl\_apply\_generic at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/b

uildbot/worker/package\_win64/build/src\gf.c:1903 [inlined]

jl\_apply at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbot/

worker/package\_win64/build/src\julia.h:1424 [inlined]

jl\_invoke at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbot

/worker/package\_win64/build/src\gf.c:51

SCS\_solve at C:\Users\re876928\AppData\Local\JuliaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\SCS\src\high\_level\_w

rapper.jl:127

unknown function (ip: 000000002B9CBDC8)

jl\_call\_fptr\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administra

tor/buildbot/worker/package\_win64/build/src\julia\_internal.h:339 [inlined]

jl\_call\_method\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administ

rator/buildbot/worker/package\_win64/build/src\julia\_internal.h:358 [inlined]

jl\_apply\_generic at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/b

uildbot/worker/package\_win64/build/src\gf.c:1903 [inlined]

jl\_apply at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbot/

worker/package\_win64/build/src\julia.h:1424 [inlined]

jl\_invoke at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbot

/worker/package\_win64/build/src\gf.c:51

#SCS\_solve#9 at C:\Users\re876928\AppData\Local\JuliaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\SCS\src\high\_leve

l\_wrapper.jl:154

unknown function (ip: 000000002B9CBAF5)

jl\_call\_fptr\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administra

tor/buildbot/worker/package\_win64/build/src\julia\_internal.h:339 [inlined]

jl\_call\_method\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administ

rator/buildbot/worker/package\_win64/build/src\julia\_internal.h:358 [inlined]

jl\_apply\_generic at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/b

uildbot/worker/package\_win64/build/src\gf.c:1903 [inlined]

jl\_apply at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbot/

worker/package\_win64/build/src\julia.h:1424 [inlined]

jl\_invoke at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbot

/worker/package\_win64/build/src\gf.c:51

SCS\_solve at C:\Users\re876928\AppData\Local\JuliaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\SCS\src\high\_level\_w

rapper.jl:154

optimize! at C:\Users\re876928\AppData\Local\JuliaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\SCS\src\SCSSolverInt

erface.jl:92

unknown function (ip: 000000002B9CB16E)

jl\_call\_fptr\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administra

tor/buildbot/worker/package\_win64/build/src\julia\_internal.h:339 [inlined]

jl\_call\_method\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administ

rator/buildbot/worker/package\_win64/build/src\julia\_internal.h:358 [inlined]

jl\_apply\_generic at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/b

uildbot/worker/package\_win64/build/src\gf.c:1903

#solve#116 at C:\\\\\\\\\\\\\\\\\\\\\\\\\\Users\re876928\AppData\Local\Jul

iaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\JuMP\src\solvers.jl:175

unknown function (ip: 000000000D6EF560)

jl\_call\_fptr\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administra

tor/buildbot/worker/package\_win64/build/src\julia\_internal.h:339 [inlined]

jl\_call\_method\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administ

rator/buildbot/worker/package\_win64/build/src\julia\_internal.h:358 [inlined]

jl\_apply\_generic at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/b

uildbot/worker/package\_win64/build/src\gf.c:1903 [inlined]

jl\_apply at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbot/

worker/package\_win64/build/src\julia.h:1424 [inlined]

jl\_invoke at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbot

/worker/package\_win64/build/src\gf.c:51

solve at C:\\\\\\\\\\\\\\\\\\\\\\\\\\Users\re876928\AppData\Local\JuliaPro

-0.6.4.1\pkgs-0.6.4.1\v0.6\JuMP\src\solvers.jl:150

unknown function (ip: 000000000D6ED4E6)

jl\_call\_fptr\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administra

tor/buildbot/worker/package\_win64/build/src\julia\_internal.h:339 [inlined]

jl\_call\_method\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administ

rator/buildbot/worker/package\_win64/build/src\julia\_internal.h:358 [inlined]

jl\_apply\_generic at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/b

uildbot/worker/package\_win64/build/src\gf.c:1903

do\_call at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbot/w

orker/package\_win64/build/src\interpreter.c:75

eval at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbot/work

er/package\_win64/build/src\interpreter.c:242

jl\_interpret\_toplevel\_expr at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Admin

istrator/buildbot/worker/package\_win64/build/src\interpreter.c:34

jl\_toplevel\_eval\_flex at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administra

tor/buildbot/worker/package\_win64/build/src\toplevel.c:577

jl\_parse\_eval\_all at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/

buildbot/worker/package\_win64/build/src\ast.c:873

include\_string at .\loading.jl:522

include\_string at C:\\\\\\\\\\\\\\\\\\\\\\\\\\Users\re876928\AppData\Local

\JuliaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\CodeTools\src\eval.jl:30

unknown function (ip: 000000000D661165)

jl\_call\_fptr\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administra

tor/buildbot/worker/package\_win64/build/src\julia\_internal.h:339 [inlined]

jl\_call\_method\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administ

rator/buildbot/worker/package\_win64/build/src\julia\_internal.h:358 [inlined]

jl\_apply\_generic at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/b

uildbot/worker/package\_win64/build/src\gf.c:1903

do\_call at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbot/w

orker/package\_win64/build/src\interpreter.c:75

eval at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbot/work

er/package\_win64/build/src\interpreter.c:242

jl\_interpret\_toplevel\_expr at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Admin

istrator/buildbot/worker/package\_win64/build/src\interpreter.c:34

jl\_toplevel\_eval\_flex at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administra

tor/buildbot/worker/package\_win64/build/src\toplevel.c:577

jl\_toplevel\_eval\_in at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrato

r/buildbot/worker/package\_win64/build/src\builtins.c:496

include\_string at C:\\\\\\\\\\\\\\\\\\\\\\\\\\Users\re876928\AppData\Local

\JuliaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\CodeTools\src\eval.jl:34

jl\_call\_fptr\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administra

tor/buildbot/worker/package\_win64/build/src\julia\_internal.h:339 [inlined]

jl\_call\_method\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administ

rator/buildbot/worker/package\_win64/build/src\julia\_internal.h:358 [inlined]

jl\_apply\_generic at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/b

uildbot/worker/package\_win64/build/src\gf.c:1903

#102 at C:\Users\re876928\AppData\Local\JuliaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\Atom\src\eval.jl:82

withpath at C:\\\\\\\\\\\\\\\\\\\\\\\\\\Users\re876928\AppData\Local\Julia

Pro-0.6.4.1\pkgs-0.6.4.1\v0.6\CodeTools\src\utils.jl:30

unknown function (ip: 000000000D660C6A)

jl\_call\_fptr\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administra

tor/buildbot/worker/package\_win64/build/src\julia\_internal.h:339 [inlined]

jl\_call\_method\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administ

rator/buildbot/worker/package\_win64/build/src\julia\_internal.h:358 [inlined]

jl\_apply\_generic at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/b

uildbot/worker/package\_win64/build/src\gf.c:1903

withpath at C:\Users\re876928\AppData\Local\JuliaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\Atom\src\eval.jl:38

unknown function (ip: 000000000D66091A)

jl\_call\_fptr\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administra

tor/buildbot/worker/package\_win64/build/src\julia\_internal.h:339 [inlined]

jl\_call\_method\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administ

rator/buildbot/worker/package\_win64/build/src\julia\_internal.h:358 [inlined]

jl\_apply\_generic at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/b

uildbot/worker/package\_win64/build/src\gf.c:1903 [inlined]

jl\_apply at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbot/

worker/package\_win64/build/src\julia.h:1424 [inlined]

jl\_invoke at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbot

/worker/package\_win64/build/src\gf.c:51

hideprompt at C:\Users\re876928\AppData\Local\JuliaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\Atom\src\repl.jl:67

unknown function (ip: 000000000D660376)

jl\_call\_fptr\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administra

tor/buildbot/worker/package\_win64/build/src\julia\_internal.h:339 [inlined]

jl\_call\_method\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administ

rator/buildbot/worker/package\_win64/build/src\julia\_internal.h:358 [inlined]

jl\_apply\_generic at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/b

uildbot/worker/package\_win64/build/src\gf.c:1903

macro expansion at C:\Users\re876928\AppData\Local\JuliaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\Atom\src\eval.

jl:80 [inlined]

#100 at .\task.jl:80

jl\_call\_fptr\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administra

tor/buildbot/worker/package\_win64/build/src\julia\_internal.h:339 [inlined]

jl\_call\_method\_internal at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administ

rator/buildbot/worker/package\_win64/build/src\julia\_internal.h:358 [inlined]

jl\_apply\_generic at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/b

uildbot/worker/package\_win64/build/src\gf.c:1903

jl\_apply at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbot/

worker/package\_win64/build/src\julia.h:1424 [inlined]

start\_task at /home/Administrator/buildbot/worker/package\_win64/build/src/home/Administrator/buildbo

t/worker/package\_win64/build/src\task.c:267

Allocations: 34085461 (Pool: 34082640; Big: 2821); GC: 111

Julia has exited. Press Enter to start a new session.

Here is my code as below:

using JuMP  
using SCS  
using DataFrames,ConditionalJuMP  
m = Model(solver=SCSSolver())

#importing data from csv files  
path1="C:\Users\re876928\Desktop\Positive definite Matrix\ef.csv"  
path2="C:\Users\re876928\Desktop\Positive definite Matrix\pii.csv"  
xi=readcsv(path1) #ei fi dataset, sammple\_size \* 2_bus\_num  
P\_all=readcsv(path2)/100 # all bus power sets,sammple\_size \* 2_bus\_num  
Pi=-1\*P\_all[:,2] #only bus power at bus 2  
sample\_size=10000 # sample size  
bus\_num=5 #bus number

#define variables  
@variable(m,aij[i=1:2\*bus\_num,j=1:2\*bus\_num],Symmetric) # define coefficients matrix aij by 2bus\_num_2bus\_num  
 @SDconstraint(m, aij \>= eye(2_bus\_num))  
@variable(m,t[i=1:sample\_size])  
#define constraints  
@constraint(m,[i=1:sample\_size],(xi[i,:]'_aij_xi[i,:]-Pi[i])\<=t[i])  
@constraint(m,[i=1:sample\_size],(xi[i,:]'_aij_xi[i,:]-Pi[i])\>=-t[i])  
@constraint(m,[i=1:sample\_size],xi[i,:]'_aij_xi[i,:]\>=0)  
@objective(m, Min,sum(t[i]/sample\_size for i=1:sample\_size))

solve(m)  
println("m = ",getobjectivevalue(m))  
println("Aij = ", getvalue(aij))  
Aij=getvalue(aij)  
output1="C:\Users\re876928\Desktop\Positive definite Matrix\result\_case5P\_bus2\_A\_v2.csv;  
writedlm(output1,Aij)

---

<div class="post-metadata">

**Author:** ![simonbyrne](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/simonbyrne/32/19_2.png) [@simonbyrne](https://discourse.julialang.org/u/simonbyrne)\
**Post date:** [November 27, 2018, 11:13pm UTC](https://discourse.julialang.org/t/submit-a-bug-report-when-using-scs-solver/18080/2 "2018-11-27T23:13:57Z")

</div>

Based on the output, the appropriate place to file a bug report would probably be [https://github.com/JuliaOpt/SCS.jl](https://github.com/JuliaOpt/SCS.jl)

It would probably help if you could create a reproducible example (i.e. code and data).

---

<div class="post-metadata">

**Author:** ![Ryan](https://avatars.discourse-cdn.com/v4/letter/r/a8b319/32.png) [@Ryan](https://discourse.julialang.org/u/Ryan)\
**Post date:** [November 28, 2018, 12:45am UTC](https://discourse.julialang.org/t/submit-a-bug-report-when-using-scs-solver/18080/3 "2018-11-28T00:45:48Z")

</div>

Thanks for your suggestion!