Add option to choose solver

test/cmdlineTests/model_checker_solvers_all/args

@@ -0,0 +1 @@
+--model-checker-engine all --model-checker-solvers all

test/cmdlineTests/model_checker_solvers_all/err

@@ -0,0 +1,12 @@
+Warning: CHC: Assertion violation happens here.
+Counterexample:
+
+x = 0
+
+Transaction trace:
+test.constructor()
+test.f(0)
+ --> model_checker_solvers_all/input.sol:5:3:
+  |
+5 | 		assert(x > 0);
+  | 		^^^^^^^^^^^^^

test/cmdlineTests/model_checker_solvers_all/input.sol

@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-3.0
+pragma solidity >=0.0;
+contract test {
+	function f(uint x) public pure {
+		assert(x > 0);
+	}
+}

test/cmdlineTests/model_checker_solvers_all_implicit/args

@@ -0,0 +1 @@
+--model-checker-engine all

test/cmdlineTests/model_checker_solvers_all_implicit/err

@@ -0,0 +1,12 @@
+Warning: CHC: Assertion violation happens here.
+Counterexample:
+
+x = 0
+
+Transaction trace:
+test.constructor()
+test.f(0)
+ --> model_checker_solvers_all_implicit/input.sol:5:3:
+  |
+5 | 		assert(x > 0);
+  | 		^^^^^^^^^^^^^

test/cmdlineTests/model_checker_solvers_all_implicit/input.sol

@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-3.0
+pragma solidity >=0.0;
+contract test {
+	function f(uint x) public pure {
+		assert(x > 0);
+	}
+}

test/cmdlineTests/model_checker_solvers_smtlib2/args

@@ -0,0 +1 @@
+--model-checker-engine all --model-checker-solvers smtlib2

test/cmdlineTests/model_checker_solvers_smtlib2/err

@@ -0,0 +1,3 @@
+Warning: CHC analysis was not possible. No Horn solver was available. None of the installed solvers was enabled.
+
+Warning: BMC analysis was not possible. No SMT solver (Z3 or CVC4) was available. None of the installed solvers was enabled.

test/cmdlineTests/model_checker_solvers_smtlib2/input.sol

@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-3.0
+pragma solidity >=0.0;
+contract test {
+	function f(uint x) public pure {
+		assert(x > 0);
+	}
+}

test/cmdlineTests/model_checker_solvers_wrong/args

@@ -0,0 +1 @@
+--model-checker-engine all --model-checker-solvers ultraSolver

test/cmdlineTests/model_checker_solvers_wrong/err

@@ -0,0 +1 @@
+Invalid option for --model-checker-solvers: ultraSolver

test/cmdlineTests/model_checker_solvers_wrong/exit

@@ -0,0 +1 @@
+1

test/cmdlineTests/model_checker_solvers_wrong/input.sol

@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-3.0
+pragma solidity >=0.0;
+contract test {
+	function f(uint x) public pure {
+		assert(x > 0);
+	}
+}

test/cmdlineTests/model_checker_solvers_wrong2/args

@@ -0,0 +1 @@
+--model-checker-engine all --model-checker-solvers z3, smtlib2

test/cmdlineTests/model_checker_solvers_wrong2/err

@@ -0,0 +1 @@
+"smtlib2" is not found.

test/cmdlineTests/model_checker_solvers_wrong2/exit

@@ -0,0 +1 @@
+1

test/cmdlineTests/model_checker_solvers_wrong2/input.sol

@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-3.0
+pragma solidity >=0.0;
+contract test {
+	function f(uint x) public pure {
+		assert(x > 0);
+	}
+}

test/cmdlineTests/model_checker_solvers_z3/args

@@ -0,0 +1 @@
+--model-checker-engine all --model-checker-solvers z3

test/cmdlineTests/model_checker_solvers_z3/err

@@ -0,0 +1,12 @@
+Warning: CHC: Assertion violation happens here.
+Counterexample:
+
+x = 0
+
+Transaction trace:
+test.constructor()
+test.f(0)
+ --> model_checker_solvers_z3/input.sol:5:3:
+  |
+5 | 		assert(x > 0);
+  | 		^^^^^^^^^^^^^

test/cmdlineTests/model_checker_solvers_z3/input.sol

@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-3.0
+pragma solidity >=0.0;
+contract test {
+	function f(uint x) public pure {
+		assert(x > 0);
+	}
+}

test/cmdlineTests/model_checker_solvers_z3_smtlib2/args

@@ -0,0 +1 @@
+--model-checker-engine all --model-checker-solvers z3,smtlib2

test/cmdlineTests/model_checker_solvers_z3_smtlib2/err

@@ -0,0 +1,12 @@
+Warning: CHC: Assertion violation happens here.
+Counterexample:
+
+x = 0
+
+Transaction trace:
+test.constructor()
+test.f(0)
+ --> model_checker_solvers_z3_smtlib2/input.sol:5:3:
+  |
+5 | 		assert(x > 0);
+  | 		^^^^^^^^^^^^^

test/cmdlineTests/model_checker_solvers_z3_smtlib2/input.sol

@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-3.0
+pragma solidity >=0.0;
+contract test {
+	function f(uint x) public pure {
+		assert(x > 0);
+	}
+}

test/cmdlineTests/standard_model_checker_solvers_all/input.json

@@ -0,0 +1,17 @@
+{
+	"language": "Solidity",
+	"sources":
+	{
+		"A":
+		{
+			"content": "// SPDX-License-Identifier: GPL-3.0\npragma solidity >=0.0;\n\ncontract C { function f(uint x) public pure { assert(x > 0); } }"
+		}
+	},
+	"settings":
+	{
+		"modelChecker":
+		{
+			"engine": "all"
+		}
+	}
+}

test/cmdlineTests/standard_model_checker_solvers_all/output.json

@@ -0,0 +1,21 @@
+{"errors":[{"component":"general","errorCode":"6328","formattedMessage":"Warning: CHC: Assertion violation happens here.
+Counterexample:
+
+x = 0
+
+Transaction trace:
+C.constructor()
+C.f(0)
+ --> A:4:47:
+  |
+4 | contract C { function f(uint x) public pure { assert(x > 0); } }
+  |                                               ^^^^^^^^^^^^^
+
+","message":"CHC: Assertion violation happens here.
+Counterexample:
+
+x = 0
+
+Transaction trace:
+C.constructor()
+C.f(0)","severity":"warning","sourceLocation":{"end":119,"file":"A","start":106},"type":"Warning"}],"sources":{"A":{"id":0}}}

test/cmdlineTests/standard_model_checker_solvers_none/input.json

@@ -0,0 +1,18 @@
+{
+	"language": "Solidity",
+	"sources":
+	{
+		"A":
+		{
+			"content": "// SPDX-License-Identifier: GPL-3.0\npragma solidity >=0.0;\n\ncontract C { function f(uint x) public pure { assert(x > 0); } }"
+		}
+	},
+	"settings":
+	{
+		"modelChecker":
+		{
+			"engine": "all",
+			"solvers": []
+		}
+	}
+}

test/cmdlineTests/standard_model_checker_solvers_none/output.json

@@ -0,0 +1,5 @@
+{"errors":[{"component":"general","errorCode":"7649","formattedMessage":"Warning: CHC analysis was not possible since no Horn solver was enabled.
+
+","message":"CHC analysis was not possible since no Horn solver was enabled.","severity":"warning","type":"Warning"},{"component":"general","errorCode":"7710","formattedMessage":"Warning: BMC analysis was not possible since no SMT solver was found and enabled.
+
+","message":"BMC analysis was not possible since no SMT solver was found and enabled.","severity":"warning","type":"Warning"}],"sources":{"A":{"id":0}}}

test/cmdlineTests/standard_model_checker_solvers_smtlib2/input.json

@@ -0,0 +1,18 @@
+{
+	"language": "Solidity",
+	"sources":
+	{
+		"A":
+		{
+			"content": "// SPDX-License-Identifier: GPL-3.0\npragma solidity >=0.0;\n\ncontract C { function f(uint x) public pure { assert(x > 0); } }"
+		}
+	},
+	"settings":
+	{
+		"modelChecker":
+		{
+			"engine": "all",
+			"solvers": ["smtlib2"]
+		}
+	}
+}

test/cmdlineTests/standard_model_checker_solvers_smtlib2/output.json

@@ -0,0 +1,138 @@
+{"auxiliaryInputRequested":{"smtlib2queries":{"0x4ee925df3426fec84707cea517cc52ed216229bfde71458a69e7edeece2c071e":"(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-fun |x_3_0| () Int)
+(declare-fun |expr_7_0| () Int)
+(declare-fun |expr_8_0| () Int)
+(declare-fun |expr_9_1| () Bool)
+
+(assert (and (and (and true true) (and (= expr_9_1 (> expr_7_0 expr_8_0)) (and (=> (and true true) true) (and (= expr_8_0 0) (and (=> (and true true) (and (>= expr_7_0 0) (<= expr_7_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_7_0 x_3_0) (and (and (>= x_3_0 0) (<= x_3_0 115792089237316195423570985008687907853269984665640564039457584007913129639935)) (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) 3017696395)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 0) 179)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 1) 222)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 2) 100)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 3) 139)) (>= (|bytes_tuple_accessor_length| (|msg.data| tx_0)) 4))) true)))))))) (not expr_9_1)))
+(declare-const |EVALEXPR_0| Int)
+(assert (= |EVALEXPR_0| x_3_0))
+(check-sat)
+(get-value (|EVALEXPR_0| ))
+","0x540d6953fff999f72ca33d8af8b900986dc012a365fc1b8572aa9d9978f1392b":"(set-logic HORN)
+
+(declare-datatypes ((|state_type| 0)) (((|state_type| (|balances| (Array Int Int))))))
+(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-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-datatypes ((|abi_type| 0)) (((|abi_type|))))
+(declare-fun |interface_0_C_14_0| (Int |abi_type| |crypto_type| |state_type| ) Bool)
+(declare-fun |nondet_interface_1_C_14_0| (Int Int |abi_type| |crypto_type| |state_type| |state_type| ) Bool)
+(declare-fun |summary_constructor_2_C_14_0| (Int Int |abi_type| |crypto_type| |tx_type| |state_type| |state_type| ) Bool)
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (state_0 |state_type|) (this_0 Int) (tx_0 |tx_type|))
+(=> (= error_0 0) (nondet_interface_1_C_14_0 error_0 this_0 abi_0 crypto_0 state_0 state_0))))
+
+
+(declare-fun |summary_3_function_f__13_14_0| (Int Int |abi_type| |crypto_type| |tx_type| |state_type| Int |state_type| Int ) Bool)
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int))
+(=> (and (and (nondet_interface_1_C_14_0 error_0 this_0 abi_0 crypto_0 state_0 state_1) true) (and (= error_0 0) (summary_3_function_f__13_14_0 error_1 this_0 abi_0 crypto_0 tx_0 state_1 x_3_0 state_2 x_3_1))) (nondet_interface_1_C_14_0 error_1 this_0 abi_0 crypto_0 state_0 state_2))))
+
+
+(declare-fun |block_4_function_f__13_14_0| (Int Int |abi_type| |crypto_type| |tx_type| |state_type| Int |state_type| Int ) Bool)
+(declare-fun |block_5_f_12_14_0| (Int Int |abi_type| |crypto_type| |tx_type| |state_type| Int |state_type| Int ) Bool)
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int))
+(block_4_function_f__13_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 x_3_0 state_1 x_3_1)))
+
+
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int))
+(=> (and (and (block_4_function_f__13_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 x_3_0 state_1 x_3_1) (and (and (and (and (= state_1 state_0) (= error_0 0)) true) (and true (= x_3_1 x_3_0))) true)) true) (block_5_f_12_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 x_3_0 state_1 x_3_1))))
+
+
+(declare-fun |block_6_return_function_f__13_14_0| (Int Int |abi_type| |crypto_type| |tx_type| |state_type| Int |state_type| Int ) Bool)
+(declare-fun |block_7_function_f__13_14_0| (Int Int |abi_type| |crypto_type| |tx_type| |state_type| Int |state_type| Int ) Bool)
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (expr_7_0 Int) (expr_8_0 Int) (expr_9_1 Bool) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int))
+(=> (and (and (block_5_f_12_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 x_3_0 state_1 x_3_1) (and (= expr_9_1 (> expr_7_0 expr_8_0)) (and (=> true true) (and (= expr_8_0 0) (and (=> true (and (>= expr_7_0 0) (<= expr_7_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_7_0 x_3_1) (and (and (>= x_3_1 0) (<= x_3_1 115792089237316195423570985008687907853269984665640564039457584007913129639935)) true))))))) (and (not expr_9_1) (= error_1 1))) (block_7_function_f__13_14_0 error_1 this_0 abi_0 crypto_0 tx_0 state_0 x_3_0 state_1 x_3_1))))
+
+
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (expr_7_0 Int) (expr_8_0 Int) (expr_9_1 Bool) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int))
+(=> (block_7_function_f__13_14_0 error_1 this_0 abi_0 crypto_0 tx_0 state_0 x_3_0 state_1 x_3_1) (summary_3_function_f__13_14_0 error_1 this_0 abi_0 crypto_0 tx_0 state_0 x_3_0 state_1 x_3_1))))
+
+
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (expr_7_0 Int) (expr_8_0 Int) (expr_9_1 Bool) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int))
+(=> (and (and (block_5_f_12_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 x_3_0 state_1 x_3_1) (and (= error_1 error_0) (and (= expr_9_1 (> expr_7_0 expr_8_0)) (and (=> true true) (and (= expr_8_0 0) (and (=> true (and (>= expr_7_0 0) (<= expr_7_0 115792089237316195423570985008687907853269984665640564039457584007913129639935))) (and (= expr_7_0 x_3_1) (and (and (>= x_3_1 0) (<= x_3_1 115792089237316195423570985008687907853269984665640564039457584007913129639935)) true)))))))) true) (block_6_return_function_f__13_14_0 error_1 this_0 abi_0 crypto_0 tx_0 state_0 x_3_0 state_1 x_3_1))))
+
+
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (expr_7_0 Int) (expr_8_0 Int) (expr_9_1 Bool) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int))
+(=> (and (and (block_6_return_function_f__13_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 x_3_0 state_1 x_3_1) true) true) (summary_3_function_f__13_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 x_3_0 state_1 x_3_1))))
+
+
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (expr_7_0 Int) (expr_8_0 Int) (expr_9_1 Bool) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int))
+(=> (and (and (interface_0_C_14_0 this_0 abi_0 crypto_0 state_0) true) (and (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) 3017696395)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 0) 179)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 1) 222)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 2) 100)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 3) 139)) (>= (|bytes_tuple_accessor_length| (|msg.data| tx_0)) 4))) (summary_3_function_f__13_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 x_3_0 state_1 x_3_1)) (= error_0 0))) (interface_0_C_14_0 this_0 abi_0 crypto_0 state_1))))
+
+
+(declare-fun |contract_initializer_8_C_14_0| (Int Int |abi_type| |crypto_type| |tx_type| |state_type| |state_type| ) Bool)
+(declare-fun |contract_initializer_entry_9_C_14_0| (Int Int |abi_type| |crypto_type| |tx_type| |state_type| |state_type| ) Bool)
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (expr_7_0 Int) (expr_8_0 Int) (expr_9_1 Bool) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int))
+(=> (and (and (= state_1 state_0) (= error_0 0)) true) (contract_initializer_entry_9_C_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 state_1))))
+
+
+(declare-fun |contract_initializer_after_init_10_C_14_0| (Int Int |abi_type| |crypto_type| |tx_type| |state_type| |state_type| ) Bool)
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (expr_7_0 Int) (expr_8_0 Int) (expr_9_1 Bool) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int))
+(=> (and (and (contract_initializer_entry_9_C_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 state_1) true) true) (contract_initializer_after_init_10_C_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 state_1))))
+
+
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (expr_7_0 Int) (expr_8_0 Int) (expr_9_1 Bool) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int))
+(=> (and (and (contract_initializer_after_init_10_C_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 state_1) true) true) (contract_initializer_8_C_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 state_1))))
+
+
+(declare-fun |implicit_constructor_entry_11_C_14_0| (Int Int |abi_type| |crypto_type| |tx_type| |state_type| |state_type| ) Bool)
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (expr_7_0 Int) (expr_8_0 Int) (expr_9_1 Bool) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int))
+(=> (and (and (and (= state_1 state_0) (= error_0 0)) true) true) (implicit_constructor_entry_11_C_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 state_1))))
+
+
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (expr_7_0 Int) (expr_8_0 Int) (expr_9_1 Bool) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int))
+(=> (and (and (implicit_constructor_entry_11_C_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 state_1) (and (contract_initializer_8_C_14_0 error_1 this_0 abi_0 crypto_0 tx_0 state_1 state_2) true)) (> error_1 0)) (summary_constructor_2_C_14_0 error_1 this_0 abi_0 crypto_0 tx_0 state_0 state_2))))
+
+
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (expr_7_0 Int) (expr_8_0 Int) (expr_9_1 Bool) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int))
+(=> (and (and (implicit_constructor_entry_11_C_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 state_1) (and (= error_1 0) (and (contract_initializer_8_C_14_0 error_1 this_0 abi_0 crypto_0 tx_0 state_1 state_2) true))) true) (summary_constructor_2_C_14_0 error_1 this_0 abi_0 crypto_0 tx_0 state_0 state_2))))
+
+
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (expr_7_0 Int) (expr_8_0 Int) (expr_9_1 Bool) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int))
+(=> (and (and (summary_constructor_2_C_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 state_1) true) (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))) (= (|msg.value| tx_0) 0)) (= error_0 0))) (interface_0_C_14_0 this_0 abi_0 crypto_0 state_1))))
+
+
+(declare-fun |error_target_2_0| () Bool)
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (expr_7_0 Int) (expr_8_0 Int) (expr_9_1 Bool) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int) (x_3_2 Int))
+(=> (and (and (interface_0_C_14_0 this_0 abi_0 crypto_0 state_0) true) (and (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) 3017696395)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 0) 179)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 1) 222)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 2) 100)) (= (select (|bytes_tuple_accessor_array| (|msg.data| tx_0)) 3) 139)) (>= (|bytes_tuple_accessor_length| (|msg.data| tx_0)) 4))) (summary_3_function_f__13_14_0 error_0 this_0 abi_0 crypto_0 tx_0 state_0 x_3_0 state_1 x_3_1)) (= error_0 1))) error_target_2_0)))
+
+
+(assert
+(forall ( (abi_0 |abi_type|) (crypto_0 |crypto_type|) (error_0 Int) (error_1 Int) (expr_7_0 Int) (expr_8_0 Int) (expr_9_1 Bool) (state_0 |state_type|) (state_1 |state_type|) (state_2 |state_type|) (this_0 Int) (tx_0 |tx_type|) (x_3_0 Int) (x_3_1 Int) (x_3_2 Int))
+(=> error_target_2_0 false)))
+(check-sat)"}},"errors":[{"component":"general","errorCode":"3996","formattedMessage":"Warning: CHC analysis was not possible. No Horn solver was available. None of the installed solvers was enabled.
+
+","message":"CHC analysis was not possible. No Horn solver was available. None of the installed solvers was enabled.","severity":"warning","type":"Warning"},{"component":"general","errorCode":"8084","formattedMessage":"Warning: BMC analysis was not possible. No SMT solver (Z3 or CVC4) was available. None of the installed solvers was enabled.
+
+","message":"BMC analysis was not possible. No SMT solver (Z3 or CVC4) was available. None of the installed solvers was enabled.","severity":"warning","type":"Warning"}],"sources":{"A":{"id":0}}}

test/cmdlineTests/standard_model_checker_solvers_z3/input.json

@@ -0,0 +1,18 @@
+{
+	"language": "Solidity",
+	"sources":
+	{
+		"A":
+		{
+			"content": "// SPDX-License-Identifier: GPL-3.0\npragma solidity >=0.0;\n\ncontract C { function f(uint x) public pure { assert(x > 0); } }"
+		}
+	},
+	"settings":
+	{
+		"modelChecker":
+		{
+			"engine": "all",
+			"solvers": ["z3"]
+		}
+	}
+}

test/cmdlineTests/standard_model_checker_solvers_z3/output.json

@@ -0,0 +1,21 @@
+{"errors":[{"component":"general","errorCode":"6328","formattedMessage":"Warning: CHC: Assertion violation happens here.
+Counterexample:
+
+x = 0
+
+Transaction trace:
+C.constructor()
+C.f(0)
+ --> A:4:47:
+  |
+4 | contract C { function f(uint x) public pure { assert(x > 0); } }
+  |                                               ^^^^^^^^^^^^^
+
+","message":"CHC: Assertion violation happens here.
+Counterexample:
+
+x = 0
+
+Transaction trace:
+C.constructor()
+C.f(0)","severity":"warning","sourceLocation":{"end":119,"file":"A","start":106},"type":"Warning"}],"sources":{"A":{"id":0}}}

test/cmdlineTests/standard_model_checker_solvers_z3_smtlib2/input.json

@@ -0,0 +1,18 @@
+{
+	"language": "Solidity",
+	"sources":
+	{
+		"A":
+		{
+			"content": "// SPDX-License-Identifier: GPL-3.0\npragma solidity >=0.0;\n\ncontract C { function f(uint x) public pure { assert(x > 0); } }"
+		}
+	},
+	"settings":
+	{
+		"modelChecker":
+		{
+			"engine": "all",
+			"solvers": ["z3", "smtlib2"]
+		}
+	}
+}

test/cmdlineTests/standard_model_checker_solvers_z3_smtlib2/output.json

@@ -0,0 +1,21 @@
+{"errors":[{"component":"general","errorCode":"6328","formattedMessage":"Warning: CHC: Assertion violation happens here.
+Counterexample:
+
+x = 0
+
+Transaction trace:
+C.constructor()
+C.f(0)
+ --> A:4:47:
+  |
+4 | contract C { function f(uint x) public pure { assert(x > 0); } }
+  |                                               ^^^^^^^^^^^^^
+
+","message":"CHC: Assertion violation happens here.
+Counterexample:
+
+x = 0
+
+Transaction trace:
+C.constructor()
+C.f(0)","severity":"warning","sourceLocation":{"end":119,"file":"A","start":106},"type":"Warning"}],"sources":{"A":{"id":0}}}

test/externalTests/solc-js/solc-js.sh

@@ -47,8 +47,10 @@ function solcjs_test
     cp -Rf "$SOLCJS_INPUT_DIR/DAO" test/
 
     printLog "Copying SMTChecker tests..."
-    cp -Rf "$TEST_DIR"/test/libsolidity/smtCheckerTests test/
-    rm -rf test/smtCheckerTests/imports
+    # We do not copy all tests because that takes too long.
+    cp -Rf "$TEST_DIR"/test/libsolidity/smtCheckerTests/external_calls test/smtCheckerTests/
+    cp -Rf "$TEST_DIR"/test/libsolidity/smtCheckerTests/loops test/smtCheckerTests/
+    cp -Rf "$TEST_DIR"/test/libsolidity/smtCheckerTests/invariants test/smtCheckerTests/
 
     # Update version (needed for some tests)
     echo "Updating package.json to version $VERSION"

test/libsolidity/SMTCheckerTest.cpp

@@ -29,21 +29,13 @@ SMTCheckerTest::SMTCheckerTest(string const& _filename): SyntaxTest(_filename, E
 {
 	auto const& choice = m_reader.stringSetting("SMTSolvers", "any");
 	if (choice == "any")
-		m_enabledSolvers = smtutil::SMTSolverChoice::All();
-	else if (choice == "z3")
-		m_enabledSolvers = smtutil::SMTSolverChoice::Z3();
-	else if (choice == "cvc4")
-		m_enabledSolvers = smtutil::SMTSolverChoice::CVC4();
+		m_modelCheckerSettings.solvers = smtutil::SMTSolverChoice::All();
 	else if (choice == "none")
-		m_enabledSolvers = smtutil::SMTSolverChoice::None();
-	else
+		m_modelCheckerSettings.solvers = smtutil::SMTSolverChoice::None();
+	else if (!m_modelCheckerSettings.solvers.setSolver(choice))
 		BOOST_THROW_EXCEPTION(runtime_error("Invalid SMT solver choice."));
 
-	auto available = ModelChecker::availableSolvers();
-	if (!available.z3)
-		m_enabledSolvers.z3 = false;
-	if (!available.cvc4)
-		m_enabledSolvers.cvc4 = false;
+	m_modelCheckerSettings.solvers &= ModelChecker::availableSolvers();
 
 	auto engine = ModelCheckerEngine::fromString(m_reader.stringSetting("SMTEngine", "all"));
 	if (engine)
@@ -51,7 +43,7 @@ SMTCheckerTest::SMTCheckerTest(string const& _filename): SyntaxTest(_filename, E
 	else
 		BOOST_THROW_EXCEPTION(runtime_error("Invalid SMT engine choice."));
 
-	if (m_enabledSolvers.none() || m_modelCheckerSettings.engine.none())
+	if (m_modelCheckerSettings.solvers.none() || m_modelCheckerSettings.engine.none())
 		m_shouldRun = false;
 
 	auto const& ignoreCex = m_reader.stringSetting("SMTIgnoreCex", "no");
@@ -66,7 +58,6 @@ SMTCheckerTest::SMTCheckerTest(string const& _filename): SyntaxTest(_filename, E
 TestCase::TestResult SMTCheckerTest::run(ostream& _stream, string const& _linePrefix, bool _formatted)
 {
 	setupCompiler();
-	compiler().setSMTSolverChoice(m_enabledSolvers);
 	compiler().setModelCheckerSettings(m_modelCheckerSettings);
 	parseAndAnalyze();
 	filterObtainedErrors();

test/solc/CommandLineParser.cpp

@@ -27,6 +27,7 @@
 
 #include <libsolutil/CommonData.h>
 #include <liblangutil/EVMVersion.h>
+#include <libsmtutil/SolverInterface.h>
 #include <libsolidity/interface/Version.h>
 
 #include <boost/algorithm/string.hpp>
@@ -82,6 +83,7 @@ BOOST_AUTO_TEST_CASE(no_options)
 	expectedOptions.modelChecker.settings = {
 		ModelCheckerContracts::Default(),
 		ModelCheckerEngine::None(),
+		smtutil::SMTSolverChoice::All(),
 		ModelCheckerTargets::Default(),
 		nullopt,
 	};
@@ -150,6 +152,7 @@ BOOST_AUTO_TEST_CASE(cli_mode_options)
 			"--yul-optimizations=agf",
 			"--model-checker-contracts=contract1.yul:A,contract2.yul:B",
 			"--model-checker-engine=bmc",
+			"--model-checker-solvers=z3,smtlib2",
 			"--model-checker-targets=underflow,divByZero",
 			"--model-checker-timeout=5",
 		};
@@ -207,6 +210,7 @@ BOOST_AUTO_TEST_CASE(cli_mode_options)
 		expectedOptions.modelChecker.settings = {
 			{{{"contract1.yul", {"A"}}, {"contract2.yul", {"B"}}}},
 			{true, false},
+			{false, true, true},
 			{{VerificationTargetType::Underflow, VerificationTargetType::DivByZero}},
 			5,
 		};
@@ -276,6 +280,7 @@ BOOST_AUTO_TEST_CASE(assembly_mode_options)
 				"contract1.yul:A,"
 				"contract2.yul:B",
 			"--model-checker-engine=bmc",  // Ignored in assembly mode
+			"--model-checker-solvers=z3,smtlib2", // Ignored in assembly mode
 			"--model-checker-targets="     // Ignored in assembly mode
 				"underflow,"
 				"divByZero",
@@ -372,6 +377,7 @@ BOOST_AUTO_TEST_CASE(standard_json_mode_options)
 			"contract1.yul:A,"
 			"contract2.yul:B",
 		"--model-checker-engine=bmc",      // Ignored in Standard JSON mode
+		"--model-checker-solvers=z3,smtlib2", // Ignored in Standard JSON mode
 		"--model-checker-targets="         // Ignored in Standard JSON mode
 			"underflow,"
 			"divByZero",

test/tools/fuzzer_common.cpp

@@ -16,7 +16,6 @@
 */
 // SPDX-License-Identifier: GPL-3.0
 
-#include "libsolidity/formal/ModelCheckerSettings.h"
 #include <test/tools/fuzzer_common.h>
 
 #include <libsolidity/interface/OptimiserSettings.h>
@@ -105,6 +104,7 @@ void FuzzerUtil::testCompiler(
 		compiler.setModelCheckerSettings({
 			frontend::ModelCheckerContracts::Default(),
 			frontend::ModelCheckerEngine::All(),
+			smtutil::SMTSolverChoice::All(),
 			frontend::ModelCheckerTargets::Default(),
 			/*timeout=*/1
 		});