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-rw-r--r--src/smt/set_defaults.cpp19
1 files changed, 10 insertions, 9 deletions
diff --git a/src/smt/set_defaults.cpp b/src/smt/set_defaults.cpp
index b9095c91b..31d14c569 100644
--- a/src/smt/set_defaults.cpp
+++ b/src/smt/set_defaults.cpp
@@ -163,15 +163,6 @@ void setDefaults(LogicInfo& logic, bool isInternalSubsolver)
}
}
- /* Only BVSolver::LAZY natively supports int2bv and nat2bv, for other solvers
- * we need to eagerly eliminate the operators. */
- if (options::bvSolver() == options::BVSolver::SIMPLE
- || options::bvSolver() == options::BVSolver::BITBLAST)
- {
- opts.bv.bvLazyReduceExtf = false;
- opts.bv.bvLazyRewriteExtf = false;
- }
-
/* Disable bit-level propagation by default for the BITBLAST solver. */
if (options::bvSolver() == options::BVSolver::BITBLAST)
{
@@ -198,6 +189,8 @@ void setDefaults(LogicInfo& logic, bool isInternalSubsolver)
if (options::solveBVAsInt() != options::SolveBVAsIntMode::OFF)
{
+ // do not rewrite bv2nat eagerly
+ opts.bv.bvLazyRewriteExtf = true;
if (options::boolToBitvector() != options::BoolToBVMode::OFF)
{
throw OptionException(
@@ -222,6 +215,14 @@ void setDefaults(LogicInfo& logic, bool isInternalSubsolver)
logic.lock();
}
}
+ else if (options::bvSolver() == options::BVSolver::SIMPLE
+ || options::bvSolver() == options::BVSolver::BITBLAST)
+ {
+ // Only BVSolver::LAZY natively supports int2bv and nat2bv, for other
+ // solvers we need to eagerly eliminate the operators. Note this is only
+ // applied if we are not eliminating BV (e.g. with solveBVAsInt).
+ opts.bv.bvLazyReduceExtf = false;
+ }
// set options about ackermannization
if (options::ackermann() && options::produceModels()
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