Do not create VCs for underoverflow by default for Sol >=0.8

This commit is contained in:
Leo Alt
2021-08-09 14:12:31 +02:00
parent 6ec711b2f0
commit ee6285d6d7
28 changed files with 341 additions and 329 deletions
@@ -0,0 +1 @@
--model-checker-engine all --model-checker-targets all
@@ -8,7 +8,7 @@ Transaction trace:
test.constructor()
State: arr = []
test.f(0, 0)
--> model_checker_targets_all/input.sol:7:3:
--> model_checker_targets_all_all_engines/input.sol:7:3:
|
7 | --x;
| ^^^
@@ -23,7 +23,7 @@ Transaction trace:
test.constructor()
State: arr = []
test.f(0, 2)
--> model_checker_targets_all/input.sol:8:3:
--> model_checker_targets_all_all_engines/input.sol:8:3:
|
8 | x + type(uint).max;
| ^^^^^^^^^^^^^^^^^^
@@ -38,7 +38,7 @@ Transaction trace:
test.constructor()
State: arr = []
test.f(0, 1)
--> model_checker_targets_all/input.sol:9:3:
--> model_checker_targets_all_all_engines/input.sol:9:3:
|
9 | 2 / x;
| ^^^^^
@@ -53,7 +53,7 @@ Transaction trace:
test.constructor()
State: arr = []
test.f(0, 1)
--> model_checker_targets_all/input.sol:11:3:
--> model_checker_targets_all_all_engines/input.sol:11:3:
|
11 | assert(x > 0);
| ^^^^^^^^^^^^^
@@ -68,7 +68,7 @@ Transaction trace:
test.constructor()
State: arr = []
test.f(0, 1)
--> model_checker_targets_all/input.sol:12:3:
--> model_checker_targets_all_all_engines/input.sol:12:3:
|
12 | arr.pop();
| ^^^^^^^^^
@@ -83,20 +83,20 @@ Transaction trace:
test.constructor()
State: arr = []
test.f(0, 1)
--> model_checker_targets_all/input.sol:13:3:
--> model_checker_targets_all_all_engines/input.sol:13:3:
|
13 | arr[x];
| ^^^^^^
Warning: BMC: Condition is always true.
--> model_checker_targets_all/input.sol:6:11:
--> model_checker_targets_all_all_engines/input.sol:6:11:
|
6 | require(x >= 0);
| ^^^^^^
Note: Callstack:
Warning: BMC: Insufficient funds happens here.
--> model_checker_targets_all/input.sol:10:3:
--> model_checker_targets_all_all_engines/input.sol:10:3:
|
10 | a.transfer(x);
| ^^^^^^^^^^^^^
@@ -1 +1 @@
--model-checker-engine bmc --model-checker-targets default
--model-checker-engine bmc --model-checker-targets all
@@ -1 +1 @@
--model-checker-engine chc --model-checker-targets default
--model-checker-engine chc --model-checker-targets all
@@ -0,0 +1,78 @@
Warning: CHC: Division by zero happens here.
Counterexample:
arr = []
a = 0
x = 0
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 1)
--> model_checker_targets_default_all_engines/input.sol:9:3:
|
9 | 2 / x;
| ^^^^^
Warning: CHC: Assertion violation happens here.
Counterexample:
arr = []
a = 0
x = 0
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 1)
--> model_checker_targets_default_all_engines/input.sol:11:3:
|
11 | assert(x > 0);
| ^^^^^^^^^^^^^
Warning: CHC: Empty array "pop" happens here.
Counterexample:
arr = []
a = 0
x = 0
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 1)
--> model_checker_targets_default_all_engines/input.sol:12:3:
|
12 | arr.pop();
| ^^^^^^^^^
Warning: CHC: Out of bounds access happens here.
Counterexample:
arr = []
a = 0
x = 0
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 1)
--> model_checker_targets_default_all_engines/input.sol:13:3:
|
13 | arr[x];
| ^^^^^^
Warning: BMC: Condition is always true.
--> model_checker_targets_default_all_engines/input.sol:6:11:
|
6 | require(x >= 0);
| ^^^^^^
Note: Callstack:
Warning: BMC: Insufficient funds happens here.
--> model_checker_targets_default_all_engines/input.sol:10:3:
|
10 | a.transfer(x);
| ^^^^^^^^^^^^^
Note: Counterexample:
a = 0
x = 0
Note: Callstack:
Note:
@@ -0,0 +1,15 @@
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.0;
contract test {
uint[] arr;
function f(address payable a, uint x) public {
require(x >= 0);
--x;
x + type(uint).max;
2 / x;
a.transfer(x);
assert(x > 0);
arr.pop();
arr[x];
}
}
@@ -0,0 +1 @@
--model-checker-engine bmc --model-checker-targets default
@@ -0,0 +1,43 @@
Warning: BMC: Condition is always true.
--> model_checker_targets_default_bmc/input.sol:6:11:
|
6 | require(x >= 0);
| ^^^^^^
Note: Callstack:
Warning: BMC: Division by zero happens here.
--> model_checker_targets_default_bmc/input.sol:9:3:
|
9 | 2 / x;
| ^^^^^
Note: Counterexample:
<result> = 0
a = 0
x = 0
Note: Callstack:
Note:
Warning: BMC: Insufficient funds happens here.
--> model_checker_targets_default_bmc/input.sol:10:3:
|
10 | a.transfer(x);
| ^^^^^^^^^^^^^
Note: Counterexample:
a = 0
x = 0
Note: Callstack:
Note:
Warning: BMC: Assertion violation happens here.
--> model_checker_targets_default_bmc/input.sol:11:3:
|
11 | assert(x > 0);
| ^^^^^^^^^^^^^
Note: Counterexample:
a = 0
x = 0
Note: Callstack:
Note:
@@ -0,0 +1,15 @@
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.0;
contract test {
uint[] arr;
function f(address payable a, uint x) public {
require(x >= 0);
--x;
x + type(uint).max;
2 / x;
a.transfer(x);
assert(x > 0);
arr.pop();
arr[x];
}
}
@@ -0,0 +1 @@
--model-checker-engine chc --model-checker-targets default
@@ -0,0 +1,59 @@
Warning: CHC: Division by zero happens here.
Counterexample:
arr = []
a = 0
x = 0
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 1)
--> model_checker_targets_default_chc/input.sol:9:3:
|
9 | 2 / x;
| ^^^^^
Warning: CHC: Assertion violation happens here.
Counterexample:
arr = []
a = 0
x = 0
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 1)
--> model_checker_targets_default_chc/input.sol:11:3:
|
11 | assert(x > 0);
| ^^^^^^^^^^^^^
Warning: CHC: Empty array "pop" happens here.
Counterexample:
arr = []
a = 0
x = 0
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 1)
--> model_checker_targets_default_chc/input.sol:12:3:
|
12 | arr.pop();
| ^^^^^^^^^
Warning: CHC: Out of bounds access happens here.
Counterexample:
arr = []
a = 0
x = 0
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 1)
--> model_checker_targets_default_chc/input.sol:13:3:
|
13 | arr[x];
| ^^^^^^
@@ -0,0 +1,15 @@
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.0;
contract test {
uint[] arr;
function f(address payable a, uint x) public {
require(x >= 0);
--x;
x + type(uint).max;
2 / x;
a.transfer(x);
assert(x > 0);
arr.pop();
arr[x];
}
}
@@ -1,4 +1,59 @@
{"auxiliaryInputRequested":{"smtlib2queries":{"0x8a1785699211e91e2593e2568d4240af6ec3b4ba113087fcb6f42bc764040d83":"(set-option :produce-models true)
{"auxiliaryInputRequested":{"smtlib2queries":{"0x196770bc73875d44bb894706d45e41767470fb493b21a0b476d2d94ba750f250":"(set-option :produce-models true)
(set-logic ALL)
(declare-fun |error_0| () Int)
(declare-fun |this_0| () Int)
(declare-datatypes ((|state_type| 0)) (((|state_type| (|balances| (Array Int Int))))))
(declare-fun |state_0| () |state_type|)
(declare-datatypes ((|bytes_tuple| 0)) (((|bytes_tuple| (|bytes_tuple_accessor_array| (Array Int Int)) (|bytes_tuple_accessor_length| Int)))))
(declare-datatypes ((|tx_type| 0)) (((|tx_type| (|block.chainid| Int) (|block.coinbase| Int) (|block.difficulty| Int) (|block.gaslimit| Int) (|block.number| Int) (|block.timestamp| Int) (|blockhash| (Array Int Int)) (|msg.data| |bytes_tuple|) (|msg.sender| Int) (|msg.sig| Int) (|msg.value| Int) (|tx.gasprice| Int) (|tx.origin| Int)))))
(declare-fun |tx_0| () |tx_type|)
(declare-datatypes ((|ecrecover_input_type| 0)) (((|ecrecover_input_type| (|hash| Int) (|v| Int) (|r| Int) (|s| Int)))))
(declare-datatypes ((|crypto_type| 0)) (((|crypto_type| (|ecrecover| (Array |ecrecover_input_type| Int)) (|keccak256| (Array |bytes_tuple| Int)) (|ripemd160| (Array |bytes_tuple| Int)) (|sha256| (Array |bytes_tuple| Int))))))
(declare-fun |crypto_0| () |crypto_type|)
(declare-datatypes ((|abi_type| 0)) (((|abi_type|))))
(declare-fun |abi_0| () |abi_type|)
(declare-datatypes ((|uint_array_tuple| 0)) (((|uint_array_tuple| (|uint_array_tuple_accessor_array| (Array Int Int)) (|uint_array_tuple_accessor_length| Int)))))
(declare-fun |arr_4_length_pair_0| () |uint_array_tuple|)
(declare-fun |a_6_0| () Int)
(declare-fun |x_8_0| () Int)
(declare-fun |arr_4_length_pair_1| () |uint_array_tuple|)
(declare-fun |expr_12_0| () Int)
(declare-fun |expr_13_0| () Int)
(declare-fun |expr_14_1| () Bool)
(declare-fun |expr_17_0| () Int)
(declare-fun |expr_18_1| () Int)
(declare-fun |x_8_1| () Int)
(declare-fun |expr_20_0| () Int)
(declare-fun |expr_25_1| () Int)
(declare-fun |expr_26_1| () Int)
(declare-fun |expr_28_0| () Int)
(declare-fun |expr_29_0| () Int)
(declare-fun |d_div_mod_10_0| () Int)
(declare-fun |r_div_mod_10_0| () Int)
(declare-fun |expr_30_1| () Int)
(declare-fun |expr_32_0| () Int)
(declare-fun |expr_35_0| () Int)
(declare-fun |state_1| () |state_type|)
(declare-fun |state_2| () |state_type|)
(declare-fun |state_3| () |state_type|)
(declare-fun |expr_39_0| () Int)
(declare-fun |expr_40_0| () Int)
(declare-fun |expr_41_1| () Bool)
(declare-fun |expr_44_length_pair_0| () |uint_array_tuple|)
(declare-fun |expr_44_length_pair_1| () |uint_array_tuple|)
(declare-fun |arr_4_length_pair_2| () |uint_array_tuple|)
(declare-fun |expr_49_length_pair_0| () |uint_array_tuple|)
(declare-fun |expr_50_0| () Int)
(declare-fun |expr_51_1| () Int)
(assert (and (and (and true true) (and (=> (and true true) (and (>= expr_35_0 0) (<= expr_35_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_35_0 x_8_1) (and (=> (and true true) (and (>= expr_32_0 0) (<= expr_32_0 1461501637330902918203684832716283019655932542975))) (and (= expr_32_0 a_6_0) (and (=> (and true true) (and (>= expr_30_1 0) (<= expr_30_1 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_30_1 (ite (= expr_29_0 0) 0 d_div_mod_10_0)) (and (and (<= 0 r_div_mod_10_0) (or (= expr_29_0 0) (< r_div_mod_10_0 expr_29_0))) (and (= (+ (* d_div_mod_10_0 expr_29_0) r_div_mod_10_0) expr_28_0) (and (=> (and true true) (and (>= expr_29_0 0) (<= expr_29_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_29_0 x_8_1) (and (=> (and true true) true) (and (= expr_28_0 2) (and (=> (and true true) (and (>= expr_26_1 0) (<= expr_26_1 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_26_1 (+ expr_20_0 expr_25_1)) (and (=> (and true true) (and (>= expr_25_1 0) (<= expr_25_1 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_25_1 115792089237316195423570985008687907853269984665640564039457584007913129639935) (and (=> (and true true) (and (>= expr_20_0 0) (<= expr_20_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_20_0 x_8_1) (and (ite (and true true) (= x_8_1 (- expr_17_0 1)) (= x_8_1 x_8_0)) (and (=> (and true true) (and (>= expr_18_1 0) (<= expr_18_1 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_18_1 (- expr_17_0 1)) (and (=> (and true true) (and (>= expr_17_0 0) (<= expr_17_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_17_0 x_8_0) (and (=> (and true true) expr_14_1) (and (= expr_14_1 (>= expr_12_0 expr_13_0)) (and (=> (and true true) true) (and (= expr_13_0 0) (and (=> (and true true) (and (>= expr_12_0 0) (<= expr_12_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_12_0 x_8_0) (and (and (>= x_8_0 0) (<= x_8_0 115792089237316195423570985008687907853269984665640564039457584007913129639935)) (and (and (>= a_6_0 0) (<= a_6_0 1461501637330902918203684832716283019655932542975)) (and (>= (|uint_array_tuple_accessor_length| arr_4_length_pair_1) 0) (and (and (and (and (and (and (and (and (and (and (and (and (>= (|block.chainid| tx_0) 0) (<= (|block.chainid| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935)) (and (>= (|block.coinbase| tx_0) 0) (<= (|block.coinbase| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|block.difficulty| tx_0) 0) (<= (|block.difficulty| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.gaslimit| tx_0) 0) (<= (|block.gaslimit| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.number| tx_0) 0) (<= (|block.number| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.timestamp| tx_0) 0) (<= (|block.timestamp| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|msg.sender| tx_0) 0) (<= (|msg.sender| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|msg.value| tx_0) 0) (<= (|msg.value| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|tx.origin| tx_0) 0) (<= (|tx.origin| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|tx.gasprice| tx_0) 0) (<= (|tx.gasprice| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (and (and (and (and (and (= (|msg.value| tx_0) 0) (= (|msg.sig| tx_0) 1917212865)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 0) 114)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 1) 70)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 2) 88)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 3) 193)) (>= (|bytes_tuple_accessor_length| (|msg.data| tx_0)) 4))) true)))))))))))))))))))))))))))))))))) (< (select (|balances| state_0) this_0) expr_35_0)))
(declare-const |EVALEXPR_0| Int)
(assert (= |EVALEXPR_0| a_6_0))
(declare-const |EVALEXPR_1| Int)
(assert (= |EVALEXPR_1| x_8_1))
(check-sat)
(get-value (|EVALEXPR_0| |EVALEXPR_1| ))
","0x8a1785699211e91e2593e2568d4240af6ec3b4ba113087fcb6f42bc764040d83":"(set-option :produce-models true)
(set-logic ALL)
(declare-fun |error_0| () Int)
(declare-fun |this_0| () Int)
@@ -48,110 +103,7 @@
(assert (and (and (and true true) (and (= expr_14_1 (>= expr_12_0 expr_13_0)) (and (=> (and true true) true) (and (= expr_13_0 0) (and (=> (and true true) (and (>= expr_12_0 0) (<= expr_12_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_12_0 x_8_0) (and (and (>= x_8_0 0) (<= x_8_0 115792089237316195423570985008687907853269984665640564039457584007913129639935)) (and (and (>= a_6_0 0) (<= a_6_0 1461501637330902918203684832716283019655932542975)) (and (>= (|uint_array_tuple_accessor_length| arr_4_length_pair_1) 0) (and (and (and (and (and (and (and (and (and (and (and (and (>= (|block.chainid| tx_0) 0) (<= (|block.chainid| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935)) (and (>= (|block.coinbase| tx_0) 0) (<= (|block.coinbase| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|block.difficulty| tx_0) 0) (<= (|block.difficulty| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.gaslimit| tx_0) 0) (<= (|block.gaslimit| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.number| tx_0) 0) (<= (|block.number| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.timestamp| tx_0) 0) (<= (|block.timestamp| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|msg.sender| tx_0) 0) (<= (|msg.sender| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|msg.value| tx_0) 0) (<= (|msg.value| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|tx.origin| tx_0) 0) (<= (|tx.origin| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|tx.gasprice| tx_0) 0) (<= (|tx.gasprice| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (and (and (and (and (and (= (|msg.value| tx_0) 0) (= (|msg.sig| tx_0) 1917212865)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 0) 114)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 1) 70)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 2) 88)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 3) 193)) (>= (|bytes_tuple_accessor_length| (|msg.data| tx_0)) 4))) true)))))))))) (not expr_14_1)))
(check-sat)
","0xf74fc530d5dd4498f4ad9eeb32a713af6cc6966efcd3e58083b97f864fdc7cbb":"(set-option :produce-models true)
(set-logic ALL)
(declare-fun |error_0| () Int)
(declare-fun |this_0| () Int)
(declare-datatypes ((|state_type| 0)) (((|state_type| (|balances| (Array Int Int))))))
(declare-fun |state_0| () |state_type|)
(declare-datatypes ((|bytes_tuple| 0)) (((|bytes_tuple| (|bytes_tuple_accessor_array| (Array Int Int)) (|bytes_tuple_accessor_length| Int)))))
(declare-datatypes ((|tx_type| 0)) (((|tx_type| (|block.chainid| Int) (|block.coinbase| Int) (|block.difficulty| Int) (|block.gaslimit| Int) (|block.number| Int) (|block.timestamp| Int) (|blockhash| (Array Int Int)) (|msg.data| |bytes_tuple|) (|msg.sender| Int) (|msg.sig| Int) (|msg.value| Int) (|tx.gasprice| Int) (|tx.origin| Int)))))
(declare-fun |tx_0| () |tx_type|)
(declare-datatypes ((|ecrecover_input_type| 0)) (((|ecrecover_input_type| (|hash| Int) (|v| Int) (|r| Int) (|s| Int)))))
(declare-datatypes ((|crypto_type| 0)) (((|crypto_type| (|ecrecover| (Array |ecrecover_input_type| Int)) (|keccak256| (Array |bytes_tuple| Int)) (|ripemd160| (Array |bytes_tuple| Int)) (|sha256| (Array |bytes_tuple| Int))))))
(declare-fun |crypto_0| () |crypto_type|)
(declare-datatypes ((|abi_type| 0)) (((|abi_type|))))
(declare-fun |abi_0| () |abi_type|)
(declare-datatypes ((|uint_array_tuple| 0)) (((|uint_array_tuple| (|uint_array_tuple_accessor_array| (Array Int Int)) (|uint_array_tuple_accessor_length| Int)))))
(declare-fun |arr_4_length_pair_0| () |uint_array_tuple|)
(declare-fun |a_6_0| () Int)
(declare-fun |x_8_0| () Int)
(declare-fun |arr_4_length_pair_1| () |uint_array_tuple|)
(declare-fun |expr_12_0| () Int)
(declare-fun |expr_13_0| () Int)
(declare-fun |expr_14_1| () Bool)
(declare-fun |expr_17_0| () Int)
(declare-fun |expr_18_1| () Int)
(declare-fun |x_8_1| () Int)
(declare-fun |expr_20_0| () Int)
(declare-fun |expr_25_1| () Int)
(declare-fun |expr_26_1| () Int)
(declare-fun |expr_28_0| () Int)
(declare-fun |expr_29_0| () Int)
(declare-fun |d_div_mod_14_0| () Int)
(declare-fun |r_div_mod_14_0| () Int)
(declare-fun |expr_30_1| () Int)
(declare-fun |expr_32_0| () Int)
(declare-fun |expr_35_0| () Int)
(declare-fun |state_1| () |state_type|)
(declare-fun |state_2| () |state_type|)
(declare-fun |state_3| () |state_type|)
(declare-fun |expr_39_0| () Int)
(declare-fun |expr_40_0| () Int)
(declare-fun |expr_41_1| () Bool)
(declare-fun |expr_44_length_pair_0| () |uint_array_tuple|)
(declare-fun |expr_44_length_pair_1| () |uint_array_tuple|)
(declare-fun |arr_4_length_pair_2| () |uint_array_tuple|)
(declare-fun |expr_49_length_pair_0| () |uint_array_tuple|)
(declare-fun |expr_50_0| () Int)
(declare-fun |expr_51_1| () Int)
(assert (and (and (and true true) (and (=> (and true true) (and (>= expr_35_0 0) (<= expr_35_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_35_0 x_8_1) (and (=> (and true true) (and (>= expr_32_0 0) (<= expr_32_0 1461501637330902918203684832716283019655932542975))) (and (= expr_32_0 a_6_0) (and (=> (and true true) (and (>= expr_30_1 0) (<= expr_30_1 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_30_1 (ite (= expr_29_0 0) 0 d_div_mod_14_0)) (and (and (<= 0 r_div_mod_14_0) (or (= expr_29_0 0) (< r_div_mod_14_0 expr_29_0))) (and (= (+ (* d_div_mod_14_0 expr_29_0) r_div_mod_14_0) expr_28_0) (and (=> (and true true) (and (>= expr_29_0 0) (<= expr_29_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_29_0 x_8_1) (and (=> (and true true) true) (and (= expr_28_0 2) (and (=> (and true true) (and (>= expr_26_1 0) (<= expr_26_1 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_26_1 (+ expr_20_0 expr_25_1)) (and (=> (and true true) (and (>= expr_25_1 0) (<= expr_25_1 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_25_1 115792089237316195423570985008687907853269984665640564039457584007913129639935) (and (=> (and true true) (and (>= expr_20_0 0) (<= expr_20_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_20_0 x_8_1) (and (ite (and true true) (= x_8_1 (- expr_17_0 1)) (= x_8_1 x_8_0)) (and (=> (and true true) (and (>= expr_18_1 0) (<= expr_18_1 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_18_1 (- expr_17_0 1)) (and (=> (and true true) (and (>= expr_17_0 0) (<= expr_17_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_17_0 x_8_0) (and (=> (and true true) expr_14_1) (and (= expr_14_1 (>= expr_12_0 expr_13_0)) (and (=> (and true true) true) (and (= expr_13_0 0) (and (=> (and true true) (and (>= expr_12_0 0) (<= expr_12_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_12_0 x_8_0) (and (and (>= x_8_0 0) (<= x_8_0 115792089237316195423570985008687907853269984665640564039457584007913129639935)) (and (and (>= a_6_0 0) (<= a_6_0 1461501637330902918203684832716283019655932542975)) (and (>= (|uint_array_tuple_accessor_length| arr_4_length_pair_1) 0) (and (and (and (and (and (and (and (and (and (and (and (and (>= (|block.chainid| tx_0) 0) (<= (|block.chainid| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935)) (and (>= (|block.coinbase| tx_0) 0) (<= (|block.coinbase| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|block.difficulty| tx_0) 0) (<= (|block.difficulty| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.gaslimit| tx_0) 0) (<= (|block.gaslimit| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.number| tx_0) 0) (<= (|block.number| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.timestamp| tx_0) 0) (<= (|block.timestamp| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|msg.sender| tx_0) 0) (<= (|msg.sender| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|msg.value| tx_0) 0) (<= (|msg.value| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|tx.origin| tx_0) 0) (<= (|tx.origin| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|tx.gasprice| tx_0) 0) (<= (|tx.gasprice| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (and (and (and (and (and (= (|msg.value| tx_0) 0) (= (|msg.sig| tx_0) 1917212865)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 0) 114)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 1) 70)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 2) 88)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 3) 193)) (>= (|bytes_tuple_accessor_length| (|msg.data| tx_0)) 4))) true)))))))))))))))))))))))))))))))))) (< (select (|balances| state_0) this_0) expr_35_0)))
(declare-const |EVALEXPR_0| Int)
(assert (= |EVALEXPR_0| a_6_0))
(declare-const |EVALEXPR_1| Int)
(assert (= |EVALEXPR_1| x_8_1))
(check-sat)
(get-value (|EVALEXPR_0| |EVALEXPR_1| ))
"}},"errors":[{"component":"general","errorCode":"3944","formattedMessage":"Warning: CHC: Underflow (resulting value less than 0) happens here.
Counterexample:
arr = []
a = 0
x = 0
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 0)
--> A:8:7:
|
8 | \t\t\t\t\t\t--x;
| \t\t\t\t\t\t^^^
","message":"CHC: Underflow (resulting value less than 0) happens here.
Counterexample:
arr = []
a = 0
x = 0
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 0)","severity":"warning","sourceLocation":{"end":177,"file":"A","start":174},"type":"Warning"},{"component":"general","errorCode":"4984","formattedMessage":"Warning: CHC: Overflow (resulting value larger than 2**256 - 1) happens here.
Counterexample:
arr = []
a = 0
x = 1
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 2)
--> A:9:7:
|
9 | \t\t\t\t\t\tx + type(uint).max;
| \t\t\t\t\t\t^^^^^^^^^^^^^^^^^^
","message":"CHC: Overflow (resulting value larger than 2**256 - 1) happens here.
Counterexample:
arr = []
a = 0
x = 1
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 2)","severity":"warning","sourceLocation":{"end":203,"file":"A","start":185},"type":"Warning"},{"component":"general","errorCode":"4281","formattedMessage":"Warning: CHC: Division by zero happens here.
"}},"errors":[{"component":"general","errorCode":"4281","formattedMessage":"Warning: CHC: Division by zero happens here.
Counterexample:
arr = []
a = 0
@@ -190,63 +190,6 @@
(assert (and (and (and true true) (and (= expr_14_1 (>= expr_12_0 expr_13_0)) (and (=> (and true true) true) (and (= expr_13_0 0) (and (=> (and true true) (and (>= expr_12_0 0) (<= expr_12_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_12_0 x_8_0) (and (and (>= x_8_0 0) (<= x_8_0 115792089237316195423570985008687907853269984665640564039457584007913129639935)) (and (and (>= a_6_0 0) (<= a_6_0 1461501637330902918203684832716283019655932542975)) (and (>= (|uint_array_tuple_accessor_length| arr_4_length_pair_1) 0) (and (and (and (and (and (and (and (and (and (and (and (and (>= (|block.chainid| tx_0) 0) (<= (|block.chainid| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935)) (and (>= (|block.coinbase| tx_0) 0) (<= (|block.coinbase| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|block.difficulty| tx_0) 0) (<= (|block.difficulty| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.gaslimit| tx_0) 0) (<= (|block.gaslimit| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.number| tx_0) 0) (<= (|block.number| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.timestamp| tx_0) 0) (<= (|block.timestamp| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|msg.sender| tx_0) 0) (<= (|msg.sender| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|msg.value| tx_0) 0) (<= (|msg.value| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|tx.origin| tx_0) 0) (<= (|tx.origin| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|tx.gasprice| tx_0) 0) (<= (|tx.gasprice| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (and (and (and (and (and (= (|msg.value| tx_0) 0) (= (|msg.sig| tx_0) 1917212865)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 0) 114)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 1) 70)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 2) 88)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 3) 193)) (>= (|bytes_tuple_accessor_length| (|msg.data| tx_0)) 4))) true)))))))))) expr_14_1))
(check-sat)
","0xc4955111313d5bc83a8e7aece746156804afbd102ec8a78c06b2a284470deebc":"(set-option :produce-models true)
(set-logic ALL)
(declare-fun |error_0| () Int)
(declare-fun |this_0| () Int)
(declare-datatypes ((|state_type| 0)) (((|state_type| (|balances| (Array Int Int))))))
(declare-fun |state_0| () |state_type|)
(declare-datatypes ((|bytes_tuple| 0)) (((|bytes_tuple| (|bytes_tuple_accessor_array| (Array Int Int)) (|bytes_tuple_accessor_length| Int)))))
(declare-datatypes ((|tx_type| 0)) (((|tx_type| (|block.chainid| Int) (|block.coinbase| Int) (|block.difficulty| Int) (|block.gaslimit| Int) (|block.number| Int) (|block.timestamp| Int) (|blockhash| (Array Int Int)) (|msg.data| |bytes_tuple|) (|msg.sender| Int) (|msg.sig| Int) (|msg.value| Int) (|tx.gasprice| Int) (|tx.origin| Int)))))
(declare-fun |tx_0| () |tx_type|)
(declare-datatypes ((|ecrecover_input_type| 0)) (((|ecrecover_input_type| (|hash| Int) (|v| Int) (|r| Int) (|s| Int)))))
(declare-datatypes ((|crypto_type| 0)) (((|crypto_type| (|ecrecover| (Array |ecrecover_input_type| Int)) (|keccak256| (Array |bytes_tuple| Int)) (|ripemd160| (Array |bytes_tuple| Int)) (|sha256| (Array |bytes_tuple| Int))))))
(declare-fun |crypto_0| () |crypto_type|)
(declare-datatypes ((|abi_type| 0)) (((|abi_type|))))
(declare-fun |abi_0| () |abi_type|)
(declare-datatypes ((|uint_array_tuple| 0)) (((|uint_array_tuple| (|uint_array_tuple_accessor_array| (Array Int Int)) (|uint_array_tuple_accessor_length| Int)))))
(declare-fun |arr_4_length_pair_0| () |uint_array_tuple|)
(declare-fun |a_6_0| () Int)
(declare-fun |x_8_0| () Int)
(declare-fun |arr_4_length_pair_1| () |uint_array_tuple|)
(declare-fun |expr_12_0| () Int)
(declare-fun |expr_13_0| () Int)
(declare-fun |expr_14_1| () Bool)
(declare-fun |expr_17_0| () Int)
(declare-fun |expr_18_1| () Int)
(declare-fun |x_8_1| () Int)
(declare-fun |expr_20_0| () Int)
(declare-fun |expr_25_1| () Int)
(declare-fun |expr_26_1| () Int)
(declare-fun |expr_28_0| () Int)
(declare-fun |expr_29_0| () Int)
(declare-fun |d_div_mod_0_0| () Int)
(declare-fun |r_div_mod_0_0| () Int)
(declare-fun |expr_30_1| () Int)
(declare-fun |expr_32_0| () Int)
(declare-fun |expr_35_0| () Int)
(declare-fun |state_1| () |state_type|)
(declare-fun |state_2| () |state_type|)
(declare-fun |state_3| () |state_type|)
(declare-fun |expr_39_0| () Int)
(declare-fun |expr_40_0| () Int)
(declare-fun |expr_41_1| () Bool)
(declare-fun |expr_44_length_pair_0| () |uint_array_tuple|)
(declare-fun |expr_44_length_pair_1| () |uint_array_tuple|)
(declare-fun |arr_4_length_pair_2| () |uint_array_tuple|)
(declare-fun |expr_49_length_pair_0| () |uint_array_tuple|)
(declare-fun |expr_50_0| () Int)
(declare-fun |expr_51_1| () Int)
(assert (and (and (and true true) (and (=> (and true true) (and (>= expr_25_1 0) (<= expr_25_1 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_25_1 115792089237316195423570985008687907853269984665640564039457584007913129639935) (and (=> (and true true) (and (>= expr_20_0 0) (<= expr_20_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_20_0 x_8_1) (and (ite (and true true) (= x_8_1 (- expr_17_0 1)) (= x_8_1 x_8_0)) (and (=> (and true true) (and (>= expr_18_1 0) (<= expr_18_1 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_18_1 (- expr_17_0 1)) (and (=> (and true true) (and (>= expr_17_0 0) (<= expr_17_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_17_0 x_8_0) (and (=> (and true true) expr_14_1) (and (= expr_14_1 (>= expr_12_0 expr_13_0)) (and (=> (and true true) true) (and (= expr_13_0 0) (and (=> (and true true) (and (>= expr_12_0 0) (<= expr_12_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_12_0 x_8_0) (and (and (>= x_8_0 0) (<= x_8_0 115792089237316195423570985008687907853269984665640564039457584007913129639935)) (and (and (>= a_6_0 0) (<= a_6_0 1461501637330902918203684832716283019655932542975)) (and (>= (|uint_array_tuple_accessor_length| arr_4_length_pair_1) 0) (and (and (and (and (and (and (and (and (and (and (and (and (>= (|block.chainid| tx_0) 0) (<= (|block.chainid| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935)) (and (>= (|block.coinbase| tx_0) 0) (<= (|block.coinbase| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|block.difficulty| tx_0) 0) (<= (|block.difficulty| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.gaslimit| tx_0) 0) (<= (|block.gaslimit| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.number| tx_0) 0) (<= (|block.number| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.timestamp| tx_0) 0) (<= (|block.timestamp| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|msg.sender| tx_0) 0) (<= (|msg.sender| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|msg.value| tx_0) 0) (<= (|msg.value| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|tx.origin| tx_0) 0) (<= (|tx.origin| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|tx.gasprice| tx_0) 0) (<= (|tx.gasprice| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (and (and (and (and (and (= (|msg.value| tx_0) 0) (= (|msg.sig| tx_0) 1917212865)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 0) 114)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 1) 70)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 2) 88)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 3) 193)) (>= (|bytes_tuple_accessor_length| (|msg.data| tx_0)) 4))) true)))))))))))))))))))) (> (+ expr_20_0 expr_25_1) 115792089237316195423570985008687907853269984665640564039457584007913129639935)))
(declare-const |EVALEXPR_0| Int)
(assert (= |EVALEXPR_0| a_6_0))
(declare-const |EVALEXPR_1| Int)
(assert (= |EVALEXPR_1| x_8_1))
(declare-const |EVALEXPR_2| Int)
(assert (= |EVALEXPR_2| (+ expr_20_0 expr_25_1)))
(check-sat)
(get-value (|EVALEXPR_0| |EVALEXPR_1| |EVALEXPR_2| ))
","0xd5b9836c53d2b59d5215cfe646b8a2d6702aed014aae55a9512896c876117d01":"(set-option :produce-models true)
(set-logic ALL)
(declare-fun |error_0| () Int)
@@ -272,63 +215,6 @@
(assert (and (and (and true true) (and (= expr_14_1 (>= expr_12_0 expr_13_0)) (and (=> (and true true) true) (and (= expr_13_0 0) (and (=> (and true true) (and (>= expr_12_0 0) (<= expr_12_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_12_0 x_8_0) (and (and (>= x_8_0 0) (<= x_8_0 115792089237316195423570985008687907853269984665640564039457584007913129639935)) (and (and (>= a_6_0 0) (<= a_6_0 1461501637330902918203684832716283019655932542975)) (and (>= (|uint_array_tuple_accessor_length| arr_4_length_pair_1) 0) (and (and (and (and (and (and (and (and (and (and (and (and (>= (|block.chainid| tx_0) 0) (<= (|block.chainid| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935)) (and (>= (|block.coinbase| tx_0) 0) (<= (|block.coinbase| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|block.difficulty| tx_0) 0) (<= (|block.difficulty| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.gaslimit| tx_0) 0) (<= (|block.gaslimit| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.number| tx_0) 0) (<= (|block.number| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.timestamp| tx_0) 0) (<= (|block.timestamp| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|msg.sender| tx_0) 0) (<= (|msg.sender| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|msg.value| tx_0) 0) (<= (|msg.value| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|tx.origin| tx_0) 0) (<= (|tx.origin| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|tx.gasprice| tx_0) 0) (<= (|tx.gasprice| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (and (and (and (and (and (= (|msg.value| tx_0) 0) (= (|msg.sig| tx_0) 1917212865)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 0) 114)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 1) 70)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 2) 88)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 3) 193)) (>= (|bytes_tuple_accessor_length| (|msg.data| tx_0)) 4))) true)))))))))) (not expr_14_1)))
(check-sat)
","0xf8a9e6ce3d09ef3b2a597297e00abd8e9cdfee9d2491deb6cb8349f0ee53fc61":"(set-option :produce-models true)
(set-logic ALL)
(declare-fun |error_0| () Int)
(declare-fun |this_0| () Int)
(declare-datatypes ((|state_type| 0)) (((|state_type| (|balances| (Array Int Int))))))
(declare-fun |state_0| () |state_type|)
(declare-datatypes ((|bytes_tuple| 0)) (((|bytes_tuple| (|bytes_tuple_accessor_array| (Array Int Int)) (|bytes_tuple_accessor_length| Int)))))
(declare-datatypes ((|tx_type| 0)) (((|tx_type| (|block.chainid| Int) (|block.coinbase| Int) (|block.difficulty| Int) (|block.gaslimit| Int) (|block.number| Int) (|block.timestamp| Int) (|blockhash| (Array Int Int)) (|msg.data| |bytes_tuple|) (|msg.sender| Int) (|msg.sig| Int) (|msg.value| Int) (|tx.gasprice| Int) (|tx.origin| Int)))))
(declare-fun |tx_0| () |tx_type|)
(declare-datatypes ((|ecrecover_input_type| 0)) (((|ecrecover_input_type| (|hash| Int) (|v| Int) (|r| Int) (|s| Int)))))
(declare-datatypes ((|crypto_type| 0)) (((|crypto_type| (|ecrecover| (Array |ecrecover_input_type| Int)) (|keccak256| (Array |bytes_tuple| Int)) (|ripemd160| (Array |bytes_tuple| Int)) (|sha256| (Array |bytes_tuple| Int))))))
(declare-fun |crypto_0| () |crypto_type|)
(declare-datatypes ((|abi_type| 0)) (((|abi_type|))))
(declare-fun |abi_0| () |abi_type|)
(declare-datatypes ((|uint_array_tuple| 0)) (((|uint_array_tuple| (|uint_array_tuple_accessor_array| (Array Int Int)) (|uint_array_tuple_accessor_length| Int)))))
(declare-fun |arr_4_length_pair_0| () |uint_array_tuple|)
(declare-fun |a_6_0| () Int)
(declare-fun |x_8_0| () Int)
(declare-fun |arr_4_length_pair_1| () |uint_array_tuple|)
(declare-fun |expr_12_0| () Int)
(declare-fun |expr_13_0| () Int)
(declare-fun |expr_14_1| () Bool)
(declare-fun |expr_17_0| () Int)
(declare-fun |expr_18_1| () Int)
(declare-fun |x_8_1| () Int)
(declare-fun |expr_20_0| () Int)
(declare-fun |expr_25_1| () Int)
(declare-fun |expr_26_1| () Int)
(declare-fun |expr_28_0| () Int)
(declare-fun |expr_29_0| () Int)
(declare-fun |d_div_mod_0_0| () Int)
(declare-fun |r_div_mod_0_0| () Int)
(declare-fun |expr_30_1| () Int)
(declare-fun |expr_32_0| () Int)
(declare-fun |expr_35_0| () Int)
(declare-fun |state_1| () |state_type|)
(declare-fun |state_2| () |state_type|)
(declare-fun |state_3| () |state_type|)
(declare-fun |expr_39_0| () Int)
(declare-fun |expr_40_0| () Int)
(declare-fun |expr_41_1| () Bool)
(declare-fun |expr_44_length_pair_0| () |uint_array_tuple|)
(declare-fun |expr_44_length_pair_1| () |uint_array_tuple|)
(declare-fun |arr_4_length_pair_2| () |uint_array_tuple|)
(declare-fun |expr_49_length_pair_0| () |uint_array_tuple|)
(declare-fun |expr_50_0| () Int)
(declare-fun |expr_51_1| () Int)
(assert (and (and (and true true) (and (=> (and true true) (and (>= expr_17_0 0) (<= expr_17_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_17_0 x_8_0) (and (=> (and true true) expr_14_1) (and (= expr_14_1 (>= expr_12_0 expr_13_0)) (and (=> (and true true) true) (and (= expr_13_0 0) (and (=> (and true true) (and (>= expr_12_0 0) (<= expr_12_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_12_0 x_8_0) (and (and (>= x_8_0 0) (<= x_8_0 115792089237316195423570985008687907853269984665640564039457584007913129639935)) (and (and (>= a_6_0 0) (<= a_6_0 1461501637330902918203684832716283019655932542975)) (and (>= (|uint_array_tuple_accessor_length| arr_4_length_pair_1) 0) (and (and (and (and (and (and (and (and (and (and (and (and (>= (|block.chainid| tx_0) 0) (<= (|block.chainid| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935)) (and (>= (|block.coinbase| tx_0) 0) (<= (|block.coinbase| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|block.difficulty| tx_0) 0) (<= (|block.difficulty| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.gaslimit| tx_0) 0) (<= (|block.gaslimit| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.number| tx_0) 0) (<= (|block.number| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|block.timestamp| tx_0) 0) (<= (|block.timestamp| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|msg.sender| tx_0) 0) (<= (|msg.sender| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|msg.value| tx_0) 0) (<= (|msg.value| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (>= (|tx.origin| tx_0) 0) (<= (|tx.origin| tx_0) 1461501637330902918203684832716283019655932542975))) (and (>= (|tx.gasprice| tx_0) 0) (<= (|tx.gasprice| tx_0) 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (and (and (and (and (and (= (|msg.value| tx_0) 0) (= (|msg.sig| tx_0) 1917212865)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 0) 114)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 1) 70)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 2) 88)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 3) 193)) (>= (|bytes_tuple_accessor_length| (|msg.data| tx_0)) 4))) true))))))))))))) (< (- expr_17_0 1) 0)))
(declare-const |EVALEXPR_0| Int)
(assert (= |EVALEXPR_0| a_6_0))
(declare-const |EVALEXPR_1| Int)
(assert (= |EVALEXPR_1| x_8_0))
(declare-const |EVALEXPR_2| Int)
(assert (= |EVALEXPR_2| (- expr_17_0 1)))
(check-sat)
(get-value (|EVALEXPR_0| |EVALEXPR_1| |EVALEXPR_2| ))
"}},"errors":[{"component":"general","errorCode":"6838","formattedMessage":"Warning: BMC: Condition is always true.
--> A:7:15:
|
@@ -336,41 +222,7 @@
| \t\t\t\t\t\t ^^^^^^
Note: Callstack:
","message":"BMC: Condition is always true.","secondarySourceLocations":[{"message":"Callstack:"}],"severity":"warning","sourceLocation":{"end":165,"file":"A","start":159},"type":"Warning"},{"component":"general","errorCode":"4144","formattedMessage":"Warning: BMC: Underflow (resulting value less than 0) happens here.
--> A:8:7:
|
8 | \t\t\t\t\t\t--x;
| \t\t\t\t\t\t^^^
Note: Counterexample:
<result> = (- 1)
a = 0
x = 0
Note: Callstack:
Note:
","message":"BMC: Underflow (resulting value less than 0) happens here.","secondarySourceLocations":[{"message":"Counterexample:
<result> = (- 1)
a = 0
x = 0
"},{"message":"Callstack:"},{"message":""}],"severity":"warning","sourceLocation":{"end":177,"file":"A","start":174},"type":"Warning"},{"component":"general","errorCode":"2661","formattedMessage":"Warning: BMC: Overflow (resulting value larger than 2**256 - 1) happens here.
--> A:9:7:
|
9 | \t\t\t\t\t\tx + type(uint).max;
| \t\t\t\t\t\t^^^^^^^^^^^^^^^^^^
Note: Counterexample:
<result> = 2**256
a = 0
x = 1
Note: Callstack:
Note:
","message":"BMC: Overflow (resulting value larger than 2**256 - 1) happens here.","secondarySourceLocations":[{"message":"Counterexample:
<result> = 2**256
a = 0
x = 1
"},{"message":"Callstack:"},{"message":""}],"severity":"warning","sourceLocation":{"end":203,"file":"A","start":185},"type":"Warning"},{"component":"general","errorCode":"3046","formattedMessage":"Warning: BMC: Division by zero happens here.
","message":"BMC: Condition is always true.","secondarySourceLocations":[{"message":"Callstack:"}],"severity":"warning","sourceLocation":{"end":165,"file":"A","start":159},"type":"Warning"},{"component":"general","errorCode":"3046","formattedMessage":"Warning: BMC: Division by zero happens here.
--> A:10:7:
|
10 | \t\t\t\t\t\t2 / x;
@@ -1,52 +1,4 @@
{"errors":[{"component":"general","errorCode":"3944","formattedMessage":"Warning: CHC: Underflow (resulting value less than 0) happens here.
Counterexample:
arr = []
a = 0
x = 0
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 0)
--> A:8:7:
|
8 | \t\t\t\t\t\t--x;
| \t\t\t\t\t\t^^^
","message":"CHC: Underflow (resulting value less than 0) happens here.
Counterexample:
arr = []
a = 0
x = 0
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 0)","severity":"warning","sourceLocation":{"end":177,"file":"A","start":174},"type":"Warning"},{"component":"general","errorCode":"4984","formattedMessage":"Warning: CHC: Overflow (resulting value larger than 2**256 - 1) happens here.
Counterexample:
arr = []
a = 0
x = 1
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 2)
--> A:9:7:
|
9 | \t\t\t\t\t\tx + type(uint).max;
| \t\t\t\t\t\t^^^^^^^^^^^^^^^^^^
","message":"CHC: Overflow (resulting value larger than 2**256 - 1) happens here.
Counterexample:
arr = []
a = 0
x = 1
Transaction trace:
test.constructor()
State: arr = []
test.f(0, 2)","severity":"warning","sourceLocation":{"end":203,"file":"A","start":185},"type":"Warning"},{"component":"general","errorCode":"4281","formattedMessage":"Warning: CHC: Division by zero happens here.
{"errors":[{"component":"general","errorCode":"4281","formattedMessage":"Warning: CHC: Division by zero happens here.
Counterexample:
arr = []
a = 0
+4
View File
@@ -45,6 +45,10 @@ SMTCheckerTest::SMTCheckerTest(string const& _filename): SyntaxTest(_filename, E
m_modelCheckerSettings.solvers &= ModelChecker::availableSolvers();
/// Underflow and Overflow are not enabled by default for Solidity >=0.8.7,
/// so we explicitly enable all targets for the tests.
m_modelCheckerSettings.targets = ModelCheckerTargets::All();
auto engine = ModelCheckerEngine::fromString(m_reader.stringSetting("SMTEngine", "all"));
if (engine)
m_modelCheckerSettings.engine = *engine;
+12 -9
View File
@@ -43,16 +43,19 @@ public:
void filterObtainedErrors() override;
protected:
/// This contains engine and timeout.
/// The engine can be set via option SMTEngine in the test.
/// The possible options are `all`, `chc`, `bmc`, `none`,
/// where the default is `all`.
ModelCheckerSettings m_modelCheckerSettings;
/*
Options that can be set in the test:
SMTEngine: `all`, `chc`, `bmc`, `none`, where the default is `all`.
Set in m_modelCheckerSettings.
SMTIgnoreCex: `yes`, `no`, where the default is `no`.
Set in m_ignoreCex.
SMTShowUnproved: `yes`, `no`, where the default is `yes`.
Set in m_modelCheckerSettings.
SMTSolvers: `all`, `cvc4`, `z3`, `none`, where the default is `all`.
Set in m_modelCheckerSettings.
*/
/// This is set via option SMTSolvers in the test.
/// The possible options are `all`, `z3`, `cvc4`, `none`,
/// where if none is given the default used option is `all`.
smtutil::SMTSolverChoice m_enabledSolvers;
ModelCheckerSettings m_modelCheckerSettings;
bool m_ignoreCex = false;
};