feat: introduce other failure modes #237
Merged
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when smt solving returns unknown due to timeout, the test result cannot be determined as simply either PASS or FAIL.
this pr introduces various failure types for better ux:
FAIL
: counterexample generatedTIMEOUT
: no counterexamples due to timeout (or oom)ERROR
: some path got stuck due to internal errors, or all paths were revertedalso, now the
paths
info provides the total number of paths only. e.g.,paths: 1/3
=>paths: 3