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Handle contradictory relations combination as dead paths #1961

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Handle contradictory relations combination as dead paths #1961

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4 changes: 4 additions & 0 deletions src/analyses/apron/relationAnalysis.apron.ml
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Original file line number Diff line number Diff line change
Expand Up @@ -431,6 +431,10 @@ struct
in
let unify_rel = RD.unify new_rel new_fun_rel in (* TODO: unify_with *)
if M.tracing then M.tracel "combine-rel" "relation unifying %a %a = %a" RD.pretty new_rel RD.pretty new_fun_rel RD.pretty unify_rel;
if RD.is_bot_env unify_rel then begin
if M.tracing then M.tracel "combine-rel" "raising Deadcode after bottom unify";
raise Deadcode
end;
{fun_st with rel = unify_rel}

let combine_assign man r fe f args fc fun_st (f_ask : Queries.ask) =
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