FractionalPermission: use a literal 0.0R #83
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This enables simplification rules (from FStarLang/FStar#3305) to kick in, and potentially significantly reduce the number of queries we send to the SMT. For instance, for DPE.fst: Before (595 total queries): Verified module: DPE All verification conditions discharged successfully ramon: end Thu May 23 10:25:28 2024 ramon: root.execname fstar.exe ramon: root.utime 12.940s ramon: root.stime 0.160s ramon: group.total 139.763s ramon: group.utime 139.459s ramon: group.stime 0.304s ramon: group.mempeak 2181MiB ramon: group.pidpeak 4 ramon: status exited ramon: exitcode 0 ramon: walltime 139.706s ramon: loadavg 1.00 After (448 total queries): Verified module: DPE All verification conditions discharged successfully ramon: end Thu May 23 10:31:30 2024 ramon: root.execname fstar.exe ramon: root.utime 12.550s ramon: root.stime 0.130s ramon: group.total 110.062s ramon: group.utime 109.754s ramon: group.stime 0.308s ramon: group.mempeak 2094MiB ramon: group.pidpeak 4 ramon: status exited ramon: exitcode 0 ramon: walltime 110.032s ramon: loadavg 1.00 So a 21% speedup. There are more optimizations we could do. The F* rules in that PR only check for 1.0/0.5/0.0 and decide comparisons between them.
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(this depends on FStarLang/FStar#3305 to make sense)
This enables simplification rules (from
FStarLang/FStar#3305) to kick in, and potentially significantly reduce the number of queries we send to the SMT. For instance, for DPE.fst:
Before (595 total queries):
After (448 total queries):
So a 21% speedup. There are more optimizations we could do. The F* rules in that PR only check for 1.0/0.5/0.0 and decide comparisons between them.