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Make miniscript fuzzers avoid ops limit

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Keep track of the total number of ops the constructed script will have
during miniscript_stable and miniscript_smart fuzzers' GenNode, so it
can abort early if the 201 ops limit would be exceeded.

Also add a self-check that the final constructed node has the predicted
ops size limit, so we know the fuzzer's logic for keeping track of this
is correct.
This commit is contained in:
Pieter Wuille
2023-02-25 16:05:04 -05:00
parent 213fffa513
commit bcec5ab4ff
2 changed files with 77 additions and 0 deletions
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3
src/script/miniscript.h
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@@ -1136,6 +1136,9 @@ public:
//! Return the maximum number of ops needed to satisfy this script non-malleably.
uint32_t GetOps() const { return ops.count + ops.sat.value; }
//! Return the number of ops in the script (not counting the dynamic ones that depend on execution).
uint32_t GetStaticOps() const { return ops.count; }
//! Check the ops limit of this script against the consensus limit.
bool CheckOpsLimit() const { return GetOps() <= MAX_OPS_PER_SCRIPT; }