dexorder

lib_openzeppelin_contracts/certora/specs/helpers/helpers.spec

@@ -0,0 +1,12 @@
+// environment
+definition nonpayable(env e) returns bool = e.msg.value == 0;
+definition nonzerosender(env e) returns bool = e.msg.sender != 0;
+definition sanity(env e) returns bool = clock(e) > 0 && clock(e) <= max_uint48;
+
+// math
+definition min(mathint a, mathint b) returns mathint = a < b ? a : b;
+definition max(mathint a, mathint b) returns mathint = a > b ? a : b;
+
+// time
+definition clock(env e) returns mathint = to_mathint(e.block.timestamp);
+definition isSetAndPast(env e, uint48 timepoint) returns bool = timepoint != 0 && to_mathint(timepoint) <= clock(e);