Problem with MOI_wrapper

[guilhermebodin]

This works in SCS but does not in CSDP

# Does not work
model = Model(with_optimizer(CSDP.Optimizer))
@variable(model, x)
@constraint(model, [4x x; x 4x] - ones(2, 2) in PSDCone())
@objective(model, Min, x)
optimize!(model)

and gives the error

ERROR: Using bridged variable in `SingleVariable` function.
Stacktrace:
 [1] error(::String) at ./error.jl:33
 [2] bridged_function at /home/guilhermebodin/.julia/packages/MathOptInterface/016Ol/src/Bridges/bridge_optimizer.jl:950 [inlined]
 [3] set(::MathOptInterface.Bridges.LazyBridgeOptimizer{MathOptInterface.Utilities.CachingOptimizer{CSDP.Optimizer,MathOptInterface.Utilities.UniversalFallback{MathOptInterface.Utilities.Model{Float64}}}}, ::MathOptInterface.ObjectiveFunction{MathOptInterface.SingleVariable}, ::MathOptInterface.SingleVariable) at /home/guilhermebodin/.julia/packages/MathOptInterface/016Ol/src/Bridges/bridge_optimizer.jl:450
 [4] _pass_attributes(::MathOptInterface.Bridges.LazyBridgeOptimizer{MathOptInterface.Utilities.CachingOptimizer{CSDP.Optimizer,MathOptInterface.Utilities.UniversalFallback{MathOptInterface.Utilities.Model{Float64}}}}, ::MathOptInterface.Utilities.UniversalFallback{MathOptInterface.Utilities.Model{Float64}}, ::Bool, ::MathOptInterface.Utilities.IndexMap, ::Array{MathOptInterface.AbstractModelAttribute,1}, ::Tuple{}, ::Tuple{}, ::Tuple{}, ::typeof(MathOptInterface.set)) at /home/guilhermebodin/.julia/packages/MathOptInterface/016Ol/src/Utilities/copy.jl:148
 [5] pass_attributes at /home/guilhermebodin/.julia/packages/MathOptInterface/016Ol/src/Utilities/copy.jl:112 [inlined]
 [6] pass_attributes at /home/guilhermebodin/.julia/packages/MathOptInterface/016Ol/src/Utilities/copy.jl:111 [inlined]
 [7] default_copy_to(::MathOptInterface.Bridges.LazyBridgeOptimizer{MathOptInterface.Utilities.CachingOptimizer{CSDP.Optimizer,MathOptInterface.Utilities.UniversalFallback{MathOptInterface.Utilities.Model{Float64}}}}, ::MathOptInterface.Utilities.UniversalFallback{MathOptInterface.Utilities.Model{Float64}}, ::Bool) at /home/guilhermebodin/.julia/packages/MathOptInterface/016Ol/src/Utilities/copy.jl:337
 [8] #automatic_copy_to#97 at /home/guilhermebodin/.julia/packages/MathOptInterface/016Ol/src/Utilities/copy.jl:15 [inlined]
 [9] #automatic_copy_to at ./none:0 [inlined]
 [10] #copy_to#1 at /home/guilhermebodin/.julia/packages/MathOptInterface/016Ol/src/Bridges/bridge_optimizer.jl:167 [inlined]
 [11] (::getfield(MathOptInterface, Symbol("#kw##copy_to")))(::NamedTuple{(:copy_names,),Tuple{Bool}}, ::typeof(MathOptInterface.copy_to), ::MathOptInterface.Bridges.LazyBridgeOptimizer{MathOptInterface.Utilities.CachingOptimizer{CSDP.Optimizer,MathOptInterface.Utilities.UniversalFallback{MathOptInterface.Utilities.Model{Float64}}}}, ::MathOptInterface.Utilities.UniversalFallback{MathOptInterface.Utilities.Model{Float64}}) at ./none:0
 [12] attach_optimizer(::MathOptInterface.Utilities.CachingOptimizer{MathOptInterface.AbstractOptimizer,MathOptInterface.Utilities.UniversalFallback{MathOptInterface.Utilities.Model{Float64}}}) at /home/guilhermebodin/.julia/packages/MathOptInterface/016Ol/src/Utilities/cachingoptimizer.jl:138
 [13] optimize!(::MathOptInterface.Utilities.CachingOptimizer{MathOptInterface.AbstractOptimizer,MathOptInterface.Utilities.UniversalFallback{MathOptInterface.Utilities.Model{Float64}}}) at /home/guilhermebodin/.julia/packages/MathOptInterface/016Ol/src/Utilities/cachingoptimizer.jl:174
 [14] #optimize!#78(::Bool, ::Bool, ::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}, ::Function, ::Model, ::Nothing) at /home/guilhermebodin/.julia/packages/JuMP/iGamg/src/optimizer_interface.jl:141
 [15] optimize! at /home/guilhermebodin/.julia/packages/JuMP/iGamg/src/optimizer_interface.jl:111 [inlined] (repeats 2 times)
 [16] top-level scope at none:0

# Work
model = Model(with_optimizer(SCS.Optimizer))
@variable(model, x)
@constraint(model, [4x x; x 4x] - ones(2, 2) in PSDCone())
@objective(model, Min, x)
optimize!(model)

This is the Project.toml I am testing against

(TesteCSDP) pkg> st
    Status `~/Documents/TesteCSDP/Project.toml`
  [0a46da34] CSDP v0.5.1
  [4076af6c] JuMP v0.20.0
  [c946c3f1] SCS v0.6.0

(TesteCSDP) pkg> st --manifest
    Status `~/Documents/TesteCSDP/Manifest.toml`
  [6e4b80f9] BenchmarkTools v0.4.2
  [9e28174c] BinDeps v0.8.10
  [b99e7846] BinaryProvider v0.5.6
  [0a46da34] CSDP v0.5.1
  [49dc2e85] Calculus v0.5.0
  [bbf7d656] CommonSubexpressions v0.2.0
  [34da2185] Compat v2.1.0
  [864edb3b] DataStructures v0.17.0
  [163ba53b] DiffResults v0.0.4
  [b552c78f] DiffRules v0.0.10
  [f6369f11] ForwardDiff v0.10.3
  [92fee26a] GZip v0.5.0
  [c27321d9] Glob v1.2.0
  [682c06a0] JSON v0.21.0
  [4076af6c] JuMP v0.20.0
  [b8f27783] MathOptInterface v0.9.1
  [fdba3010] MathProgBase v0.7.7
  [77ba4419] NaNMath v0.3.2
  [bac558e1] OrderedCollections v1.1.0
  [69de0a69] Parsers v0.3.7
  [c946c3f1] SCS v0.6.0
  [169818f4] SemidefiniteModels v0.1.1
  [276daf66] SpecialFunctions v0.8.0
  [90137ffa] StaticArrays v0.11.0
  [30578b45] URIParser v0.4.0
  [2a0f44e3] Base64 
  [ade2ca70] Dates 
  [8bb1440f] DelimitedFiles 
  [8ba89e20] Distributed 
  [b77e0a4c] InteractiveUtils 
  [76f85450] LibGit2 
  [8f399da3] Libdl 
  [37e2e46d] LinearAlgebra 
  [56ddb016] Logging 
  [d6f4376e] Markdown 
  [a63ad114] Mmap 
  [44cfe95a] Pkg 
  [de0858da] Printf 
  [3fa0cd96] REPL 
  [9a3f8284] Random 
  [ea8e919c] SHA 
  [9e88b42a] Serialization 
  [1a1011a3] SharedArrays 
  [6462fe0b] Sockets 
  [2f01184e] SparseArrays 
  [10745b16] Statistics 
  [8dfed614] Test 
  [cf7118a7] UUIDs 
  [4ec0a83e] Unicode

[blegat]

We need jump-dev/MathOptInterface.jl#789 (comment), it should be fixed in MOI v0.9.2. For now, use 1x in the objective as a workaround

[guilhermebodin]

It is working now