Adding random AST generator.

dblotsky / stringfuzz

Fuzzer and generator for string and regex problems in SMT-LIB 2.x format.

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Adding random AST generator. #30

Closed dblotsky closed 6 years ago

dblotsky commented 6 years ago

Other changes:

renaming smt_sat to smt_check_sat
renaming smt_model to smt_get_model
factoring out coin_toss() and random_string() into util.py

This addresses #18.

NOTE: still working on --meaningful flag.

dblotsky commented 6 years ago

@FedericoAureliano this should be ready for review. It actually produces valid problems now! The downside is that it sometimes adds something like (assert (not true)) or (assert (< var0 var0)) and the problem becomes doomed.

I think it warrants a catch for trivially unsat things like this eventually. :/