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| author | Andrew Reynolds <andrew.j.reynolds@gmail.com> | 2020-02-06 19:12:29 -0600 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-02-06 17:12:29 -0800 |
| commit | c98585d9913878cfe5328fe98fb4357f911b29b0 (patch) | |
| tree | dfa4b4e2b29f69489243778b8beb57e5581c4ecd | |
| parent | babbe0e30d769b5f68cb3f36820fbb5e176de7c5 (diff) | |
Fix exact sqrt (#3721)
Co-authored-by: Ahmed Irfan <43099566+ahmed-irfan@users.noreply.github.com>
| -rw-r--r-- | src/theory/arith/nl_model.cpp | 4 | ||||
| -rw-r--r-- | test/regress/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | test/regress/regress0/nl/issue3719.smt2 | 5 |
3 files changed, 8 insertions, 2 deletions
diff --git a/src/theory/arith/nl_model.cpp b/src/theory/arith/nl_model.cpp index eff810522..54ae4c52a 100644 --- a/src/theory/arith/nl_model.cpp +++ b/src/theory/arith/nl_model.cpp @@ -1200,8 +1200,8 @@ bool NlModel::getApproximateSqrt(Node c, Node& l, Node& u, unsigned iter) const Rational curr_sq = curr * curr; if (curr_sq == rc) { - rl = curr_sq; - ru = curr_sq; + rl = curr; + ru = curr; break; } else if (curr_sq < rc) diff --git a/test/regress/CMakeLists.txt b/test/regress/CMakeLists.txt index 35d604768..ef33adb59 100644 --- a/test/regress/CMakeLists.txt +++ b/test/regress/CMakeLists.txt @@ -558,6 +558,7 @@ set(regress_0_tests regress0/nl/issue3411.smt2 regress0/nl/issue3475.smt2 regress0/nl/issue3652.smt2 + regress0/nl/issue3719.smt2 regress0/nl/magnitude-wrong-1020-m.smt2 regress0/nl/mult-po.smt2 regress0/nl/nia-wrong-tl.smt2 diff --git a/test/regress/regress0/nl/issue3719.smt2 b/test/regress/regress0/nl/issue3719.smt2 new file mode 100644 index 000000000..c620432f4 --- /dev/null +++ b/test/regress/regress0/nl/issue3719.smt2 @@ -0,0 +1,5 @@ +(set-logic QF_NRA) +(set-info :status sat) +(declare-fun a () Real) +(assert (= (* 4 a a) 9)) +(check-sat) |