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Performance regression on arithmetic formula #4913

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rainoftime opened this issue Dec 23, 2020 · 0 comments

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rainoftime commented Dec 23, 2020 •

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Hi, for the following formula,
z3 6284f6f

(declare-fun v8 () Bool)
(declare-fun r9 () Real)
(push)
(assert (and (= 8 (* r9 r9)) (= v8 (and (= 3438 r9) v8))))
(check-sat)

$ time z3 smt.arith.solver=2 ../delta.out.smt2 
sat

real    0m0.016s
user    0m0.016s
sys     0m0.000s
$ time z3 timeout=60000 ../delta.out.smt2 
unknown

real    1m0.052s
user    1m0.004s
sys     0m0.020s

The text was updated successfully, but these errors were encountered:

NikolajBjorner added a commit that referenced this issue


          fix bound miss-computation, include sporadic nra check for #4913

21c626e

NikolajBjorner closed this as completed

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