Fix spurious overflow in pointer subtraction - #1909
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Fixes the issue in the affected benchmarks that I manually checked.
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CHANGES: * Add new may-happen-in-parallel analyses (goblint/analyzer#1805, goblint/analyzer#1865, goblint/analyzer#1913, goblint/analyzer#1928). * Add Open Verification Dashboard checks output (goblint/analyzer#1838, goblint/analyzer#1929). * Add negative bitwise shift warnings (goblint/analyzer#1637, goblint/analyzer#1989). * Add missing function declaration warnings (goblint/analyzer#1911). * Improve overflow warnings (goblint/analyzer#1894, goblint/analyzer#1895, goblint/analyzer#1896, goblint/analyzer#1905). * Fix spurious overflow checks (goblint/analyzer#1767, goblint/analyzer#1909, goblint/analyzer#1910, goblint/analyzer#1932, goblint/analyzer#2022). * Fix missing overflow and out-of-bounds checks (goblint/analyzer#1935, goblint/analyzer#2017, goblint/analyzer#2029). * Optimize base analysis domain using Patricia trees (goblint/analyzer#2002, goblint/analyzer#2015). * Optimize field offset calculations (goblint/analyzer#1964, goblint/analyzer#1973, goblint/analyzer#1974). * Optimize non-incremental top-down solver (goblint/analyzer#1566, goblint/analyzer#1972). * Add OCaml 5.5 support (goblint/analyzer#2006, goblint/analyzer#2010).
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Found by @karoliineh during dashboard evaluation.