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90 Commits

Author SHA1 Message Date
Leonardo Alt
b7ac207391 [SMTChecker] Support return in CHC 2020-12-07 18:17:33 +01:00
Leonardo Alt
7490ffbe13 Use nonlinear clauses instead of inlining for base constructors 2020-12-04 13:25:56 +01:00
Martin Blicha
5ca7a24896 [SMTChecker] Added support for precise modeling of external calls to this. 
Modeling external calls to this, since we can trust these calls.

fixed problem with transaction data not being restored after trusted external call

update to the tests

additional tests

changelog entry

added tests for external getters of this
 2020-11-13 11:49:09 +01:00
Leonardo
25b2a38d8b
Merge pull request #10202 from ethereum/smt_fix_modifiers_branches 
[SMTChecker] Fix CHC false positives when using branches inside modifiers
 2020-11-09 16:42:30 +00:00
Leonardo Alt
646be53f2f Sort variables and expressions by AST id 2020-11-06 11:50:43 +00:00
Leonardo Alt
1dbd8f8d67 Fix CHC false positives when using branches inside modifiers 2020-11-04 21:47:07 +00:00
Leonardo
62535c2fd4
Merge pull request #10181 from ethereum/smt_user_timeout 
[SMTChecker] User timeout option
 2020-11-04 10:55:28 +00:00
Leonardo Alt
daf859c15b [SMTChecker] report SMTEncoder warnings also via CHC 2020-11-03 16:06:17 +00:00
Leonardo Alt
d03ddeb0fa [SMTChecker] User timeout option 2020-11-03 10:46:11 +00:00
Martin Blicha
c1a57ffbfe [SMTChecker] More precise creation of verification targets. 2020-10-30 19:11:28 +01:00
Leonardo Alt
446e46fe06 Use Expression instead of plain strings for counterexamples 2020-10-27 12:04:51 +00:00
Martin Blicha
f0d81601db [SMTChecker] Adding division by zero checks in the CHC engine 2020-10-21 14:48:33 +02:00
Leonardo Alt
cf35785328 Add unknown message to all verification targets 2020-10-19 20:54:13 +01:00
Leonardo
a097f9f124
Merge pull request #10025 from ethereum/smt_crypto_functions 
[SMTChecker] Support crypto functions in CHC
 2020-10-16 16:40:29 +01:00
Leonardo Alt
4e49135318 Add CLI option to choose model checker engine 2020-10-16 15:01:47 +01:00
Leonardo Alt
54f76e081a [SMTChecker] Support crypto functions in CHC 2020-10-16 14:57:13 +01:00
Leonardo Alt
aec456021d Add tx constraints to CHC 2020-10-13 17:49:04 +01:00
Leonardo Alt
18cf01c187 Add this and state to CHC 2020-10-12 11:11:52 +01:00
Leonardo Alt
c8cc73c80c Support array slices 2020-10-01 11:52:02 +02:00
Leonardo Alt
352cce5fc8 [SMTChecker] Support addmod and mulmod. 2020-09-29 12:45:19 +02:00
Leonardo Alt
fa7c9a0dc6 Simplify internal function calls 2020-09-28 15:31:15 +02:00
Leonardo Alt
3519b38055 Move predicate functions from CHC to PredicateInstance 2020-09-28 12:43:19 +02:00
Leonardo Alt
ac93ee1d08 Move error flag from CHC to SymbolicState 2020-09-28 12:37:57 +02:00
Leonardo Alt
e6bd18525b [SMTChecker] Add engine prefix to verification target error messages 2020-09-25 19:09:06 +02:00
Leonardo Alt
d87e15e2cd Refactor CHC sorts 2020-09-15 16:45:50 +02:00
Leonardo Alt
23ee011c56 [SMTChecker] Fix imports 2020-09-11 13:34:46 +02:00
Leonardo Alt
00f6b303b1 [SMTChecker] Change warning message 2020-09-09 16:14:21 +02:00
Leonardo Alt
a3b6019131 Move post input and post output filtering from CHC to Predicate 2020-09-01 16:10:12 +02:00
Leonardo Alt
2e2e96cc93 Move state model filtering from CHC to Predicate 2020-09-01 16:10:12 +02:00
Leonardo Alt
e3a8c94ace Move formatFunctionCallCounterexample from CHC to Predicate 2020-09-01 16:10:11 +02:00
Leonardo Alt
5bbb20d3cb Move stateVariablesIncludingInheritedAndPrivate from CHC to SMTEncoder 2020-09-01 16:09:57 +02:00
Leonardo Alt
016b9b83a8 Refactor predicates 2020-09-01 16:09:56 +02:00
chriseth
4dc63875f9
Merge pull request #9113 from ethereum/smt_chc_overflow 
[SMTChecker] Add underflow/overflow target to CHC
 2020-08-20 13:17:00 +02:00
Leonardo Alt
8a06041bbe [SMTChecker] Add underflow/overflow target to CHC 2020-08-14 12:58:27 +02:00
Jason Cobb
888d7037cd
Make FunctionCallAnnotation::kind a SetOnce 2020-08-12 11:57:01 -04:00
Leonardo Alt
8df8c6e14f [SMTChecker] Fix ICE in BMC function inlining 2020-08-05 11:47:25 +02:00
Leonardo Alt
d5f00842d9 cex2dot debug 2020-07-23 18:49:03 +02:00
Leonardo Alt
5bb4e73693 Review 1 2020-07-23 18:49:03 +02:00
Leonardo Alt
51721c3080 Double SAT run for cex 2020-07-23 18:49:03 +02:00
Leonardo Alt
694ec92688 Generate counterexample message based on cex graph 2020-07-23 18:49:03 +02:00
Leonardo Alt
744905525f Convert z3 cex graph into STL 2020-07-23 18:49:03 +02:00
Leonardo Alt
a7a069c74a Refactor constructor exit 2020-07-23 18:49:03 +02:00
Sachin Grover
b7adb2aa42 Add SPDX license identifier if not present already in source file 
Fixes: #9220
 2020-07-17 20:24:12 +05:30
chriseth
b3566ad0d5
Merge pull request #9082 from ethereum/conversionWarnings 
Adding `-Wsign-conversion` flag and fixing errors
 2020-07-13 11:28:09 +02:00
Leonardo Alt
88030c6568 [SMTChecker] Refactor verification targets 2020-07-10 10:28:49 +02:00
Alex Beregszaszi
a0300835eb Change CHC to avoid sign mismatch 2020-07-09 17:22:52 +02:00
Leonardo Alt
f97fa9b520 [SMTChecker] Add current input variables to the function summary 2020-07-02 15:30:29 +02:00
Leonardo Alt
5517e817d5 Do not trust code of external functions 2020-07-01 18:20:46 +02:00
Leonardo Alt
56e7d43384 Rename var 2020-07-01 18:20:34 +02:00
Leonardo Alt
5160f89c1b [SMTChecker] Support to external calls to unknown code 2020-07-01 18:20:33 +02:00