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cprover: only equate same-address-type pairs in axiom field-condition eval #9067

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cprover: only equate same-address-type pairs in axiom field-condition eval #9067

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8 changes: 6 additions & 2 deletions src/cprover/axioms.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -65,9 +65,13 @@ void axiomst::evaluate_fc()
if(a_it->state() != b_it->state())
continue;

// Skip pairs with incompatible address types — they can never
// point to the same location.
Comment on lines +68 to +69
if(a_it->address().type() != b_it->address().type())
continue;
Comment on lines +70 to +71

auto a_op = a_it->address();
auto b_op = typecast_exprt::conditional_cast(
b_it->address(), a_it->address().type());
auto b_op = b_it->address();
auto operands_equal = equal_exprt(a_op, b_op);
auto implication = implies_exprt(
operands_equal,
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