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| author | Andrew Reynolds <andrew.j.reynolds@gmail.com> | 2020-04-22 13:32:20 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-04-22 11:32:20 -0700 |
| commit | d64143f8aec229a673db1ec7b38d94890134d3f5 (patch) | |
| tree | 3a967e221e2e881952b885b7fccfd08f21f1b034 /test | |
| parent | 286ed8f8a3d6aece0469e983e87626a25107608d (diff) | |
Ensure disequality splits are processed as lemmas (#4380)
Fixes #4379. This was caused by a splitting lemma rewriting to a conjunction, being processed as a fact, and having a pending phase requirement sent out assuming the inference was to be processed as a lemma. This forces 2 of the splits in the core solver to be always processed as lemmas.
Diffstat (limited to 'test')
| -rw-r--r-- | test/regress/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | test/regress/regress1/strings/issue4379.smt2 | 9 |
2 files changed, 10 insertions, 0 deletions
diff --git a/test/regress/CMakeLists.txt b/test/regress/CMakeLists.txt index ac96110ce..cf953c252 100644 --- a/test/regress/CMakeLists.txt +++ b/test/regress/CMakeLists.txt @@ -1752,6 +1752,7 @@ set(regress_1_tests regress1/strings/issue3272.smt2 regress1/strings/issue3357.smt2 regress1/strings/issue3657-unexpectedUnsatCVC4.smt2 + regress1/strings/issue4379.smt2 regress1/strings/kaluza-fl.smt2 regress1/strings/loop002.smt2 regress1/strings/loop003.smt2 diff --git a/test/regress/regress1/strings/issue4379.smt2 b/test/regress/regress1/strings/issue4379.smt2 new file mode 100644 index 000000000..c5d024bc2 --- /dev/null +++ b/test/regress/regress1/strings/issue4379.smt2 @@ -0,0 +1,9 @@ +; COMMAND-LINE: --strings-exp +; EXPECT: sat +(set-logic QF_SLIA) +(set-info :status sat) +(declare-const i7 Int) +(declare-const Str8 String) +(declare-const Str17 String) +(assert (distinct (str.++ "" "rvhhcn" "" Str8 (int.to.str 56)) (str.++ "" (int.to.str i7) "" Str17) Str17)) +(check-sat) |