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Fix constant propagator merge operator #1057

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Fix constant propagator merge operator #1057

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8664df1
Regression test for constant propagator merge bug
peterschrammel Jun 24, 2017
937d755
Fix merge operator of constant propagator
peterschrammel Jun 24, 2017
7a559e2
Cleanup linting issues in constant propagator
peterschrammel Jun 24, 2017
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18 changes: 18 additions & 0 deletions regression/goto-instrument/constant-propagation1/main.c
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Original file line number Diff line number Diff line change
@@ -0,0 +1,18 @@
#include <assert.h>

void main()
{
unsigned char n;
__CPROVER_assume(n > 0); // To keep division well defined
__CPROVER_assume(n * n > 0); // To keep division well defined

unsigned char i = 0;
unsigned char j = 0;

unsigned char aux1 = i / (n * n);
for (i = 0; i < n; ++i, aux1 = i / (n * n)) {
for (j = 0; j < n; ++j) {
}
}
assert(i != n);
}
8 changes: 8 additions & 0 deletions regression/goto-instrument/constant-propagation1/test.desc
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@@ -0,0 +1,8 @@
CORE
main.c
--constant-propagator --unwind 3
^EXIT=10$
^SIGNAL=0$
^VERIFICATION FAILED$
--
^warning: ignoring
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