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SMV: two tests for union #1179

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Merged
merged 1 commit into from
Jul 3, 2025
Merged

SMV: two tests for union #1179

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9 changes: 9 additions & 0 deletions regression/smv/expressions/smv_union1.desc
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Original file line number Diff line number Diff line change
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CORE broken-smt-backend
smv_union1.smv

^\[spec1\] x != 3: PROVED \(CT=1\)$
^\[spec2\] x != 2: REFUTED$
^EXIT=10$
^SIGNAL=0$
--
^warning: ignoring
11 changes: 11 additions & 0 deletions regression/smv/expressions/smv_union1.smv
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Original file line number Diff line number Diff line change
@@ -0,0 +1,11 @@
MODULE main

VAR x : 1..3;
ASSIGN init(x) := 1 union 2;
next(x) := x;

-- passes
SPEC x != 3

-- fails
SPEC x != 2
11 changes: 11 additions & 0 deletions regression/smv/expressions/smv_union2.desc
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@@ -0,0 +1,11 @@
KNOWNBUG broken-smt-backend
smv_union2.smv

^\[spec1\] x != 3: PROVED \(CT=1\)$
^\[spec2\] x != 2: REFUTED$
^EXIT=10$
^SIGNAL=0$
--
^warning: ignoring
--
The type checker rejects this.
11 changes: 11 additions & 0 deletions regression/smv/expressions/smv_union2.smv
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Original file line number Diff line number Diff line change
@@ -0,0 +1,11 @@
MODULE main

VAR x : 1..3;
ASSIGN init(x) := 1 union { 2 };
next(x) := x;

-- passes
SPEC x != 3

-- fails
SPEC x != 2
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