Attempt to improve the geth tx indexing issue.

We're facing an issue where Geth transaction indexing can sometimes stall on some of the nodes we're running. The logs show that for all transactions we always need 1 second of waiting time. However, during certain runs we sometimes run into an issue with some of the nodes where it seems like their transaction indexer fails (either at the start or after some amount of time) which leads us to never get the receipts back from these specific nodes. This is not a load issue as it appears like all of the other nodes handle it just fine. However, it looks like once a node gets into this state it can not get out of it and its bricked for the entire run. This commit adds some more command line arguments to the geth command in hopes of improving this issue.
Allow for files to be specified in the corpus file
2026-04-22 17:17:58 +00:00 · 2025-07-28 17:45:58 +03:00 · 2025-07-28 17:45:50 +03:00
28 changed files with 462 additions and 1069 deletions
@@ -99,12 +99,9 @@ jobs:
      - name: Install Geth on Ubuntu
        if: matrix.os == 'ubuntu-24.04'
        run: |
-          sudo add-apt-repository -y ppa:ethereum/ethereum
          sudo apt-get update
          sudo apt-get install -y protobuf-compiler

-          sudo apt-get install -y solc
-
          # We were facing some issues in CI with the 1.16.* versions of geth, and specifically on
          # Ubuntu. Eventually, we found out that the last version of geth that worked in our CI was
          # version 1.15.11. Thus, this is the version that we want to use in CI. The PPA sadly does
@@ -125,22 +122,12 @@ jobs:
          wget -qO- "$URL" | sudo tar xz -C /usr/local/bin --strip-components=1
          geth --version

-          curl -sL https://github.com/paritytech/revive/releases/download/v0.3.0/resolc-x86_64-unknown-linux-musl -o resolc
-          chmod +x resolc
-          sudo mv resolc /usr/local/bin
-
      - name: Install Geth on macOS
        if: matrix.os == 'macos-14'
        run: |
          brew tap ethereum/ethereum
          brew install ethereum protobuf

-          brew install solidity
-
-          curl -sL https://github.com/paritytech/revive/releases/download/v0.3.0/resolc-universal-apple-darwin -o resolc
-          chmod +x resolc
-          sudo mv resolc /usr/local/bin
-
      - name: Machete
        uses: bnjbvr/cargo-machete@v0.7.1

@@ -156,8 +143,5 @@ jobs:
      - name: Check eth-rpc version
        run: eth-rpc --version

-      - name: Check resolc version
-        run: resolc --version
-
      - name: Test cargo workspace
        run: make test
@@ -339,7 +339,6 @@ dependencies = [
 "const-hex",
 "derive_more 2.0.1",
 "foldhash",
- "getrandom 0.3.3",
 "hashbrown 0.15.3",
 "indexmap 2.10.0",
 "itoa",
@@ -2228,66 +2227,6 @@ dependencies = [
 "percent-encoding",
 ]

-[[package]]
-name = "foundry-compilers-artifacts"
-version = "0.18.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2676d70082ed23680fe2d08c0b750d5f7f2438c6d946f1cb140a76c5e5e0392"
-dependencies = [
- "foundry-compilers-artifacts-solc",
- "foundry-compilers-artifacts-vyper",
-]
-
-[[package]]
-name = "foundry-compilers-artifacts-solc"
-version = "0.18.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a3ada94dc5946334bb08df574855ba345ab03ba8c6f233560c72c8d61fa9db80"
-dependencies = [
- "alloy-json-abi",
- "alloy-primitives",
- "foundry-compilers-core",
- "path-slash",
- "regex",
- "semver 1.0.26",
- "serde",
- "serde_json",
- "thiserror 2.0.12",
- "tracing",
- "yansi",
-]
-
-[[package]]
-name = "foundry-compilers-artifacts-vyper"
-version = "0.18.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "372052af72652e375a6e7eed22179bd8935114e25e1c5a8cca7f00e8f20bd94c"
-dependencies = [
- "alloy-json-abi",
- "alloy-primitives",
- "foundry-compilers-artifacts-solc",
- "foundry-compilers-core",
- "path-slash",
- "semver 1.0.26",
- "serde",
-]
-
-[[package]]
-name = "foundry-compilers-core"
-version = "0.18.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf0962c46855979300f6526ed57f987ccf6a025c2b92ce574b281d9cb2ef666b"
-dependencies = [
- "alloy-primitives",
- "cfg-if",
- "dunce",
- "path-slash",
- "semver 1.0.26",
- "serde",
- "serde_json",
- "thiserror 2.0.12",
-]
-
 [[package]]
 name = "fs-err"
 version = "2.11.0"
@@ -3517,12 +3456,6 @@ version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"

-[[package]]
-name = "path-slash"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e91099d4268b0e11973f036e885d652fb0b21fedcf69738c627f94db6a44f42"
-
 [[package]]
 name = "pbkdf2"
 version = "0.12.2"
@@ -4022,7 +3955,6 @@ dependencies = [
 "anyhow",
 "futures",
 "once_cell",
- "semver 1.0.26",
 "tokio",
 "tracing",
 ]
@@ -4031,17 +3963,13 @@ dependencies = [
 name = "revive-dt-compiler"
 version = "0.1.0"
 dependencies = [
- "alloy",
 "alloy-primitives",
 "anyhow",
- "foundry-compilers-artifacts",
 "revive-common",
- "revive-dt-common",
 "revive-dt-config",
 "revive-dt-solc-binaries",
 "revive-solc-json-interface",
 "semver 1.0.26",
- "serde",
 "serde_json",
 "tracing",
 ]
@@ -4073,7 +4001,8 @@ dependencies = [
 "revive-dt-node",
 "revive-dt-node-interaction",
 "revive-dt-report",
- "semver 1.0.26",
+ "revive-solc-json-interface",
+ "serde_json",
 "temp-dir",
 "tracing",
 "tracing-subscriber",
@@ -4126,9 +4055,9 @@ name = "revive-dt-report"
 version = "0.1.0"
 dependencies = [
 "anyhow",
- "revive-dt-compiler",
 "revive-dt-config",
 "revive-dt-format",
+ "revive-solc-json-interface",
 "serde",
 "serde_json",
 "tracing",
@@ -4141,7 +4070,6 @@ dependencies = [
 "anyhow",
 "hex",
 "reqwest",
- "revive-dt-common",
 "semver 1.0.26",
 "serde",
 "sha2 0.10.9",
@@ -4239,9 +4167,6 @@ name = "rustc-hash"
 version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "357703d41365b4b27c590e3ed91eabb1b663f07c4c084095e60cbed4362dff0d"
-dependencies = [
- "rand 0.8.5",
-]

 [[package]]
 name = "rustc-hex"
@@ -6292,12 +6217,6 @@ dependencies = [
 "tap",
 ]

-[[package]]
-name = "yansi"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cfe53a6657fd280eaa890a3bc59152892ffa3e30101319d168b781ed6529b049"
-
 [[package]]
 name = "yoke"
 version = "0.8.0"
@@ -26,7 +26,6 @@ alloy-primitives = "1.2.1"
 alloy-sol-types = "1.2.1"
 anyhow = "1.0"
 clap = { version = "4", features = ["derive"] }
-foundry-compilers-artifacts = { version = "0.18.0" }
 futures = { version = "0.3.31" }
 hex = "0.4.3"
 reqwest = { version = "0.12.15", features = ["blocking", "json"] }
@@ -11,7 +11,6 @@ rust-version.workspace = true
 [dependencies]
 anyhow = { workspace = true }
 futures = { workspace = true }
-semver = { workspace = true }
 tracing = { workspace = true }
 once_cell = { workspace = true }
 tokio = { workspace = true }
@@ -4,4 +4,3 @@
 pub mod concepts;
 pub mod iterators;
 pub mod macros;
-pub mod types;
@@ -1,3 +0,0 @@
-mod version_or_requirement;
-
-pub use version_or_requirement::*;
@@ -1,41 +0,0 @@
-use semver::{Version, VersionReq};
-
-#[derive(Clone, Debug)]
-pub enum VersionOrRequirement {
-    Version(Version),
-    Requirement(VersionReq),
-}
-
-impl From<Version> for VersionOrRequirement {
-    fn from(value: Version) -> Self {
-        Self::Version(value)
-    }
-}
-
-impl From<VersionReq> for VersionOrRequirement {
-    fn from(value: VersionReq) -> Self {
-        Self::Requirement(value)
-    }
-}
-
-impl TryFrom<VersionOrRequirement> for Version {
-    type Error = anyhow::Error;
-
-    fn try_from(value: VersionOrRequirement) -> Result<Self, Self::Error> {
-        let VersionOrRequirement::Version(version) = value else {
-            anyhow::bail!("Version or requirement was not a version");
-        };
-        Ok(version)
-    }
-}
-
-impl TryFrom<VersionOrRequirement> for VersionReq {
-    type Error = anyhow::Error;
-
-    fn try_from(value: VersionOrRequirement) -> Result<Self, Self::Error> {
-        let VersionOrRequirement::Requirement(requirement) = value else {
-            anyhow::bail!("Version or requirement was not a requirement");
-        };
-        Ok(requirement)
-    }
-}
@@ -10,16 +10,12 @@ rust-version.workspace = true

 [dependencies]
 revive-solc-json-interface = { workspace = true }
-revive-dt-common = { workspace = true }
 revive-dt-config = { workspace = true }
 revive-dt-solc-binaries = { workspace = true }
 revive-common = { workspace = true }

-alloy = { workspace = true }
 alloy-primitives = { workspace = true }
 anyhow = { workspace = true }
-foundry-compilers-artifacts = { workspace = true }
 semver = { workspace = true }
-serde = { workspace = true }
 serde_json = { workspace = true }
 tracing = { workspace = true }
@@ -4,20 +4,21 @@
 //! - Polkadot revive Wasm compiler

 use std::{
-    collections::HashMap,
    fs::read_to_string,
    hash::Hash,
    path::{Path, PathBuf},
 };

-use alloy::json_abi::JsonAbi;
 use alloy_primitives::Address;
-use semver::Version;
-use serde::{Deserialize, Serialize};
+use revive_dt_config::Arguments;

 use revive_common::EVMVersion;
-use revive_dt_common::types::VersionOrRequirement;
-use revive_dt_config::Arguments;
+use revive_solc_json_interface::{
+    SolcStandardJsonInput, SolcStandardJsonInputLanguage, SolcStandardJsonInputSettings,
+    SolcStandardJsonInputSettingsOptimizer, SolcStandardJsonInputSettingsSelection,
+    SolcStandardJsonOutput,
+};
+use semver::Version;

 pub mod revive_js;
 pub mod revive_resolc;
@@ -31,44 +32,63 @@ pub trait SolidityCompiler {
    /// The low-level compiler interface.
    fn build(
        &self,
-        input: CompilerInput,
-        additional_options: Self::Options,
-    ) -> anyhow::Result<CompilerOutput>;
+        input: CompilerInput<Self::Options>,
+    ) -> anyhow::Result<CompilerOutput<Self::Options>>;

    fn new(solc_executable: PathBuf) -> Self;

-    fn get_compiler_executable(
-        config: &Arguments,
-        version: impl Into<VersionOrRequirement>,
-    ) -> anyhow::Result<PathBuf>;
-
-    fn version(&self) -> anyhow::Result<Version>;
+    fn get_compiler_executable(config: &Arguments, version: Version) -> anyhow::Result<PathBuf>;
 }

 /// The generic compilation input configuration.
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct CompilerInput {
-    pub enable_optimization: Option<bool>,
-    pub via_ir: Option<bool>,
-    pub evm_version: Option<EVMVersion>,
+#[derive(Debug)]
+pub struct CompilerInput<T: PartialEq + Eq + Hash> {
+    pub extra_options: T,
+    pub input: SolcStandardJsonInput,
    pub allow_paths: Vec<PathBuf>,
    pub base_path: Option<PathBuf>,
-    pub sources: HashMap<PathBuf, String>,
-    pub libraries: HashMap<PathBuf, HashMap<String, Address>>,
 }

 /// The generic compilation output configuration.
-#[derive(Debug, Clone, Default, Serialize, Deserialize)]
-pub struct CompilerOutput {
-    /// The compiled contracts. The bytecode of the contract is kept as a string incase linking is
-    /// required and the compiled source has placeholders.
-    pub contracts: HashMap<PathBuf, HashMap<String, (String, JsonAbi)>>,
+#[derive(Debug)]
+pub struct CompilerOutput<T: PartialEq + Eq + Hash> {
+    /// The solc standard JSON input.
+    pub input: CompilerInput<T>,
+    /// The produced solc standard JSON output.
+    pub output: SolcStandardJsonOutput,
+    /// The error message in case the compiler returns abnormally.
+    pub error: Option<String>,
 }

-/// A generic builder style interface for configuring the supported compiler options.
+impl<T> PartialEq for CompilerInput<T>
+where
+    T: PartialEq + Eq + Hash,
+{
+    fn eq(&self, other: &Self) -> bool {
+        let self_input = serde_json::to_vec(&self.input).unwrap_or_default();
+        let other_input = serde_json::to_vec(&self.input).unwrap_or_default();
+        self.extra_options.eq(&other.extra_options) && self_input == other_input
+    }
+}
+
+impl<T> Eq for CompilerInput<T> where T: PartialEq + Eq + Hash {}
+
+impl<T> Hash for CompilerInput<T>
+where
+    T: PartialEq + Eq + Hash,
+{
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.extra_options.hash(state);
+        state.write(&serde_json::to_vec(&self.input).unwrap_or_default());
+    }
+}
+
+/// A generic builder style interface for configuring all compiler options.
 pub struct Compiler<T: SolidityCompiler> {
-    input: CompilerInput,
-    additional_options: T::Options,
+    input: SolcStandardJsonInput,
+    extra_options: T::Options,
+    allow_paths: Vec<PathBuf>,
+    base_path: Option<PathBuf>,
 }

 impl Default for Compiler<solc::Solc> {
@@ -83,75 +103,93 @@ where
 {
    pub fn new() -> Self {
        Self {
-            input: CompilerInput {
-                enable_optimization: Default::default(),
-                via_ir: Default::default(),
-                evm_version: Default::default(),
-                allow_paths: Default::default(),
-                base_path: Default::default(),
+            input: SolcStandardJsonInput {
+                language: SolcStandardJsonInputLanguage::Solidity,
                sources: Default::default(),
-                libraries: Default::default(),
+                settings: SolcStandardJsonInputSettings::new(
+                    None,
+                    Default::default(),
+                    None,
+                    SolcStandardJsonInputSettingsSelection::new_required(),
+                    SolcStandardJsonInputSettingsOptimizer::new(
+                        false,
+                        None,
+                        &Version::new(0, 0, 0),
+                        false,
+                    ),
+                    None,
+                    None,
+                ),
            },
-            additional_options: T::Options::default(),
+            extra_options: Default::default(),
+            allow_paths: Default::default(),
+            base_path: None,
        }
    }

-    pub fn with_optimization(mut self, value: impl Into<Option<bool>>) -> Self {
-        self.input.enable_optimization = value.into();
+    pub fn solc_optimizer(mut self, enabled: bool) -> Self {
+        self.input.settings.optimizer.enabled = enabled;
        self
    }

-    pub fn with_via_ir(mut self, value: impl Into<Option<bool>>) -> Self {
-        self.input.via_ir = value.into();
-        self
-    }
-
-    pub fn with_evm_version(mut self, version: impl Into<Option<EVMVersion>>) -> Self {
-        self.input.evm_version = version.into();
-        self
-    }
-
-    pub fn with_allow_path(mut self, path: impl AsRef<Path>) -> Self {
-        self.input.allow_paths.push(path.as_ref().into());
-        self
-    }
-
-    pub fn with_base_path(mut self, path: impl Into<Option<PathBuf>>) -> Self {
-        self.input.base_path = path.into();
-        self
-    }
-
-    pub fn with_source(mut self, path: impl AsRef<Path>) -> anyhow::Result<Self> {
+    pub fn with_source(mut self, path: &Path) -> anyhow::Result<Self> {
        self.input
            .sources
-            .insert(path.as_ref().to_path_buf(), read_to_string(path.as_ref())?);
+            .insert(path.display().to_string(), read_to_string(path)?.into());
        Ok(self)
    }

+    pub fn evm_version(mut self, evm_version: EVMVersion) -> Self {
+        self.input.settings.evm_version = Some(evm_version);
+        self
+    }
+
+    pub fn extra_options(mut self, extra_options: T::Options) -> Self {
+        self.extra_options = extra_options;
+        self
+    }
+
+    pub fn allow_path(mut self, path: PathBuf) -> Self {
+        self.allow_paths.push(path);
+        self
+    }
+
+    pub fn base_path(mut self, base_path: PathBuf) -> Self {
+        self.base_path = Some(base_path);
+        self
+    }
+
    pub fn with_library(
        mut self,
-        path: impl AsRef<Path>,
-        name: impl AsRef<str>,
-        address: Address,
+        scope: impl AsRef<Path>,
+        library_ident: impl AsRef<str>,
+        library_address: Address,
    ) -> Self {
        self.input
+            .settings
            .libraries
-            .entry(path.as_ref().to_path_buf())
+            .get_or_insert_with(Default::default)
+            .entry(scope.as_ref().display().to_string())
            .or_default()
-            .insert(name.as_ref().into(), address);
+            .insert(
+                library_ident.as_ref().to_owned(),
+                library_address.to_string(),
+            );
+
        self
    }

-    pub fn with_additional_options(mut self, options: impl Into<T::Options>) -> Self {
-        self.additional_options = options.into();
-        self
+    pub fn try_build(self, solc_path: PathBuf) -> anyhow::Result<CompilerOutput<T::Options>> {
+        T::new(solc_path).build(CompilerInput {
+            extra_options: self.extra_options,
+            input: self.input,
+            allow_paths: self.allow_paths,
+            base_path: self.base_path,
+        })
    }

-    pub fn try_build(self, compiler_path: impl AsRef<Path>) -> anyhow::Result<CompilerOutput> {
-        T::new(compiler_path.as_ref().to_path_buf()).build(self.input, self.additional_options)
-    }
-
-    pub fn input(&self) -> CompilerInput {
+    /// Returns the compiler JSON input.
+    pub fn input(&self) -> SolcStandardJsonInput {
        self.input.clone()
    }
 }
@@ -6,19 +6,9 @@ use std::{
    process::{Command, Stdio},
 };

-use alloy::json_abi::JsonAbi;
-use revive_dt_common::types::VersionOrRequirement;
-use revive_dt_config::Arguments;
-use revive_solc_json_interface::{
-    SolcStandardJsonInput, SolcStandardJsonInputLanguage, SolcStandardJsonInputSettings,
-    SolcStandardJsonInputSettingsOptimizer, SolcStandardJsonInputSettingsSelection,
-    SolcStandardJsonOutput,
-};
-
 use crate::{CompilerInput, CompilerOutput, SolidityCompiler};
-
-use anyhow::Context;
-use semver::Version;
+use revive_dt_config::Arguments;
+use revive_solc_json_interface::SolcStandardJsonOutput;

 // TODO: I believe that we need to also pass the solc compiler to resolc so that resolc uses the
 // specified solc compiler. I believe that currently we completely ignore the specified solc binary
@@ -37,56 +27,8 @@ impl SolidityCompiler for Resolc {
    #[tracing::instrument(level = "debug", ret)]
    fn build(
        &self,
-        CompilerInput {
-            enable_optimization,
-            // Ignored and not honored since this is required for the resolc compilation.
-            via_ir: _via_ir,
-            evm_version,
-            allow_paths,
-            base_path,
-            sources,
-            libraries,
-        }: CompilerInput,
-        additional_options: Self::Options,
-    ) -> anyhow::Result<CompilerOutput> {
-        let input = SolcStandardJsonInput {
-            language: SolcStandardJsonInputLanguage::Solidity,
-            sources: sources
-                .into_iter()
-                .map(|(path, source)| (path.display().to_string(), source.into()))
-                .collect(),
-            settings: SolcStandardJsonInputSettings {
-                evm_version,
-                libraries: Some(
-                    libraries
-                        .into_iter()
-                        .map(|(source_code, libraries_map)| {
-                            (
-                                source_code.display().to_string(),
-                                libraries_map
-                                    .into_iter()
-                                    .map(|(library_ident, library_address)| {
-                                        (library_ident, library_address.to_string())
-                                    })
-                                    .collect(),
-                            )
-                        })
-                        .collect(),
-                ),
-                remappings: None,
-                output_selection: Some(SolcStandardJsonInputSettingsSelection::new_required()),
-                via_ir: Some(true),
-                optimizer: SolcStandardJsonInputSettingsOptimizer::new(
-                    enable_optimization.unwrap_or(false),
-                    None,
-                    &Version::new(0, 0, 0),
-                    false,
-                ),
-                metadata: None,
-                polkavm: None,
-            },
-        };
-
+        input: CompilerInput<Self::Options>,
+    ) -> anyhow::Result<CompilerOutput<Self::Options>> {
        let mut command = Command::new(&self.resolc_path);
        command
            .stdin(Stdio::piped())
@@ -94,12 +36,13 @@ impl SolidityCompiler for Resolc {
            .stderr(Stdio::piped())
            .arg("--standard-json");

-        if let Some(ref base_path) = base_path {
+        if let Some(ref base_path) = input.base_path {
            command.arg("--base-path").arg(base_path);
        }
-        if !allow_paths.is_empty() {
+        if !input.allow_paths.is_empty() {
            command.arg("--allow-paths").arg(
-                allow_paths
+                input
+                    .allow_paths
                    .iter()
                    .map(|path| path.display().to_string())
                    .collect::<Vec<_>>()
@@ -109,86 +52,93 @@ impl SolidityCompiler for Resolc {
        let mut child = command.spawn()?;

        let stdin_pipe = child.stdin.as_mut().expect("stdin must be piped");
-        serde_json::to_writer(stdin_pipe, &input)?;
+        serde_json::to_writer(stdin_pipe, &input.input)?;
+
+        let json_in = serde_json::to_string_pretty(&input.input)?;

        let output = child.wait_with_output()?;
        let stdout = output.stdout;
        let stderr = output.stderr;

        if !output.status.success() {
-            let json_in = serde_json::to_string_pretty(&input)?;
            let message = String::from_utf8_lossy(&stderr);
            tracing::error!(
-                status = %output.status,
-                message = %message,
-                json_input = json_in,
-                "Compilation using resolc failed"
+                "resolc failed exit={} stderr={} JSON-in={} ",
+                output.status,
+                &message,
+                json_in,
            );
-            anyhow::bail!("Compilation failed with an error: {message}");
+            return Ok(CompilerOutput {
+                input,
+                output: Default::default(),
+                error: Some(message.into()),
+            });
        }

-        let parsed = serde_json::from_slice::<SolcStandardJsonOutput>(&stdout).map_err(|e| {
-            anyhow::anyhow!(
-                "failed to parse resolc JSON output: {e}\nstderr: {}",
-                String::from_utf8_lossy(&stderr)
-            )
-        })?;
+        let mut parsed =
+            serde_json::from_slice::<SolcStandardJsonOutput>(&stdout).map_err(|e| {
+                anyhow::anyhow!(
+                    "failed to parse resolc JSON output: {e}\nstderr: {}",
+                    String::from_utf8_lossy(&stderr)
+                )
+            })?;
+
+        // Detecting if the compiler output contained errors and reporting them through logs and
+        // errors instead of returning the compiler output that might contain errors.
+        for error in parsed.errors.iter().flatten() {
+            if error.severity == "error" {
+                tracing::error!(?error, ?input, "Encountered an error in the compilation");
+                anyhow::bail!("Encountered an error in the compilation: {error}")
+            }
+        }
+
+        // We need to do some post processing on the output to make it in the same format that solc
+        // outputs. More specifically, for each contract, the `.metadata` field should be replaced
+        // with the `.metadata.solc_metadata` field which contains the ABI and other information
+        // about the compiled contracts. We do this because we do not want any downstream logic to
+        // need to differentiate between which compiler is being used when extracting the ABI of the
+        // contracts.
+        if let Some(ref mut contracts) = parsed.contracts {
+            for (contract_path, contracts_map) in contracts.iter_mut() {
+                for (contract_name, contract_info) in contracts_map.iter_mut() {
+                    let Some(metadata) = contract_info.metadata.take() else {
+                        continue;
+                    };
+
+                    // Get the `solc_metadata` in the metadata of the contract.
+                    let Some(solc_metadata) = metadata
+                        .get("solc_metadata")
+                        .and_then(|metadata| metadata.as_str())
+                    else {
+                        tracing::error!(
+                            contract_path,
+                            contract_name,
+                            metadata = serde_json::to_string(&metadata).unwrap(),
+                            "Encountered a contract compiled with resolc that has no solc_metadata"
+                        );
+                        anyhow::bail!(
+                            "Contract {} compiled with resolc that has no solc_metadata",
+                            contract_name
+                        );
+                    };
+
+                    // Replace the original metadata with the new solc_metadata.
+                    contract_info.metadata =
+                        Some(serde_json::Value::String(solc_metadata.to_string()));
+                }
+            }
+        }

        tracing::debug!(
            output = %serde_json::to_string(&parsed).unwrap(),
            "Compiled successfully"
        );

-        // Detecting if the compiler output contained errors and reporting them through logs and
-        // errors instead of returning the compiler output that might contain errors.
-        for error in parsed.errors.iter().flatten() {
-            if error.severity == "error" {
-                tracing::error!(
-                    ?error,
-                    ?input,
-                    output = %serde_json::to_string(&parsed).unwrap(),
-                    "Encountered an error in the compilation"
-                );
-                anyhow::bail!("Encountered an error in the compilation: {error}")
-            }
-        }
-
-        let Some(contracts) = parsed.contracts else {
-            anyhow::bail!("Unexpected error - resolc output doesn't have a contracts section");
-        };
-
-        let mut compiler_output = CompilerOutput::default();
-        for (source_path, contracts) in contracts.into_iter() {
-            let source_path = PathBuf::from(source_path).canonicalize()?;
-
-            let map = compiler_output.contracts.entry(source_path).or_default();
-            for (contract_name, contract_information) in contracts.into_iter() {
-                let bytecode = contract_information
-                    .evm
-                    .and_then(|evm| evm.bytecode.clone())
-                    .context("Unexpected - Contract compiled with resolc has no bytecode")?;
-                let abi = contract_information
-                    .metadata
-                    .as_ref()
-                    .and_then(|metadata| metadata.as_object())
-                    .and_then(|metadata| metadata.get("solc_metadata"))
-                    .and_then(|solc_metadata| solc_metadata.as_str())
-                    .and_then(|metadata| serde_json::from_str::<serde_json::Value>(metadata).ok())
-                    .and_then(|metadata| {
-                        metadata.get("output").and_then(|output| {
-                            output
-                                .get("abi")
-                                .and_then(|abi| serde_json::from_value::<JsonAbi>(abi.clone()).ok())
-                        })
-                    })
-                    .context(
-                        "Unexpected - Failed to get the ABI for a contract compiled with resolc",
-                    )?;
-                map.insert(contract_name, (bytecode.object, abi));
-            }
-        }
-
-        Ok(compiler_output)
+        Ok(CompilerOutput {
+            input,
+            output: parsed,
+            error: None,
+        })
    }

    fn new(resolc_path: PathBuf) -> Self {
@@ -197,7 +147,7 @@ impl SolidityCompiler for Resolc {

    fn get_compiler_executable(
        config: &Arguments,
-        _version: impl Into<VersionOrRequirement>,
+        _version: semver::Version,
    ) -> anyhow::Result<PathBuf> {
        if !config.resolc.as_os_str().is_empty() {
            return Ok(config.resolc.clone());
@@ -205,45 +155,4 @@ impl SolidityCompiler for Resolc {

        Ok(PathBuf::from("resolc"))
    }
-
-    fn version(&self) -> anyhow::Result<semver::Version> {
-        // Logic for parsing the resolc version from the following string:
-        // Solidity frontend for the revive compiler version 0.3.0+commit.b238913.llvm-18.1.8
-
-        let output = Command::new(self.resolc_path.as_path())
-            .arg("--version")
-            .stdout(Stdio::piped())
-            .spawn()?
-            .wait_with_output()?
-            .stdout;
-        let output = String::from_utf8_lossy(&output);
-        let version_string = output
-            .split("version ")
-            .nth(1)
-            .context("Version parsing failed")?
-            .split("+")
-            .next()
-            .context("Version parsing failed")?;
-
-        Version::parse(version_string).map_err(Into::into)
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use super::*;
-
-    #[test]
-    fn compiler_version_can_be_obtained() {
-        // Arrange
-        let args = Arguments::default();
-        let path = Resolc::get_compiler_executable(&args, Version::new(0, 7, 6)).unwrap();
-        let compiler = Resolc::new(path);
-
-        // Act
-        let version = compiler.version();
-
-        // Assert
-        let _ = version.expect("Failed to get version");
-    }
 }
@@ -6,21 +6,10 @@ use std::{
    process::{Command, Stdio},
 };

-use revive_dt_common::types::VersionOrRequirement;
+use crate::{CompilerInput, CompilerOutput, SolidityCompiler};
 use revive_dt_config::Arguments;
 use revive_dt_solc_binaries::download_solc;
-
-use crate::{CompilerInput, CompilerOutput, SolidityCompiler};
-
-use anyhow::Context;
-use foundry_compilers_artifacts::{
-    output_selection::{
-        BytecodeOutputSelection, ContractOutputSelection, EvmOutputSelection, OutputSelection,
-    },
-    solc::CompilerOutput as SolcOutput,
-    solc::*,
-};
-use semver::Version;
+use revive_solc_json_interface::SolcStandardJsonOutput;

 #[derive(Debug)]
 pub struct Solc {
@@ -33,63 +22,8 @@ impl SolidityCompiler for Solc {
    #[tracing::instrument(level = "debug", ret)]
    fn build(
        &self,
-        CompilerInput {
-            enable_optimization,
-            via_ir,
-            evm_version,
-            allow_paths,
-            base_path,
-            sources,
-            libraries,
-        }: CompilerInput,
-        _: Self::Options,
-    ) -> anyhow::Result<CompilerOutput> {
-        let input = SolcInput {
-            language: SolcLanguage::Solidity,
-            sources: Sources(
-                sources
-                    .into_iter()
-                    .map(|(source_path, source_code)| (source_path, Source::new(source_code)))
-                    .collect(),
-            ),
-            settings: Settings {
-                optimizer: Optimizer {
-                    enabled: enable_optimization,
-                    details: Some(Default::default()),
-                    ..Default::default()
-                },
-                output_selection: OutputSelection::common_output_selection(
-                    [
-                        ContractOutputSelection::Abi,
-                        ContractOutputSelection::Evm(EvmOutputSelection::ByteCode(
-                            BytecodeOutputSelection::Object,
-                        )),
-                    ]
-                    .into_iter()
-                    .map(|item| item.to_string()),
-                ),
-                evm_version: evm_version.map(|version| version.to_string().parse().unwrap()),
-                via_ir,
-                libraries: Libraries {
-                    libs: libraries
-                        .into_iter()
-                        .map(|(file_path, libraries)| {
-                            (
-                                file_path,
-                                libraries
-                                    .into_iter()
-                                    .map(|(library_name, library_address)| {
-                                        (library_name, library_address.to_string())
-                                    })
-                                    .collect(),
-                            )
-                        })
-                        .collect(),
-                },
-                ..Default::default()
-            },
-        };
-
+        input: CompilerInput<Self::Options>,
+    ) -> anyhow::Result<CompilerOutput<Self::Options>> {
        let mut command = Command::new(&self.solc_path);
        command
            .stdin(Stdio::piped())
@@ -97,12 +31,13 @@ impl SolidityCompiler for Solc {
            .stderr(Stdio::piped())
            .arg("--standard-json");

-        if let Some(ref base_path) = base_path {
+        if let Some(ref base_path) = input.base_path {
            command.arg("--base-path").arg(base_path);
        }
-        if !allow_paths.is_empty() {
+        if !input.allow_paths.is_empty() {
            command.arg("--allow-paths").arg(
-                allow_paths
+                input
+                    .allow_paths
                    .iter()
                    .map(|path| path.display().to_string())
                    .collect::<Vec<_>>()
@@ -112,32 +47,31 @@ impl SolidityCompiler for Solc {
        let mut child = command.spawn()?;

        let stdin = child.stdin.as_mut().expect("should be piped");
-        serde_json::to_writer(stdin, &input)?;
+        serde_json::to_writer(stdin, &input.input)?;
        let output = child.wait_with_output()?;

        if !output.status.success() {
-            let json_in = serde_json::to_string_pretty(&input)?;
            let message = String::from_utf8_lossy(&output.stderr);
-            tracing::error!(
-                status = %output.status,
-                message = %message,
-                json_input = json_in,
-                "Compilation using solc failed"
-            );
-            anyhow::bail!("Compilation failed with an error: {message}");
+            tracing::error!("solc failed exit={} stderr={}", output.status, &message);
+            return Ok(CompilerOutput {
+                input,
+                output: Default::default(),
+                error: Some(message.into()),
+            });
        }

-        let parsed = serde_json::from_slice::<SolcOutput>(&output.stdout).map_err(|e| {
-            anyhow::anyhow!(
-                "failed to parse resolc JSON output: {e}\nstderr: {}",
-                String::from_utf8_lossy(&output.stdout)
-            )
-        })?;
+        let parsed =
+            serde_json::from_slice::<SolcStandardJsonOutput>(&output.stdout).map_err(|e| {
+                anyhow::anyhow!(
+                    "failed to parse resolc JSON output: {e}\nstderr: {}",
+                    String::from_utf8_lossy(&output.stdout)
+                )
+            })?;

        // Detecting if the compiler output contained errors and reporting them through logs and
        // errors instead of returning the compiler output that might contain errors.
-        for error in parsed.errors.iter() {
-            if error.severity == Severity::Error {
+        for error in parsed.errors.iter().flatten() {
+            if error.severity == "error" {
                tracing::error!(?error, ?input, "Encountered an error in the compilation");
                anyhow::bail!("Encountered an error in the compilation: {error}")
            }
@@ -148,29 +82,11 @@ impl SolidityCompiler for Solc {
            "Compiled successfully"
        );

-        let mut compiler_output = CompilerOutput::default();
-        for (contract_path, contracts) in parsed.contracts {
-            let map = compiler_output
-                .contracts
-                .entry(contract_path.canonicalize()?)
-                .or_default();
-            for (contract_name, contract_info) in contracts.into_iter() {
-                let source_code = contract_info
-                    .evm
-                    .and_then(|evm| evm.bytecode)
-                    .map(|bytecode| match bytecode.object {
-                        BytecodeObject::Bytecode(bytecode) => bytecode.to_string(),
-                        BytecodeObject::Unlinked(unlinked) => unlinked,
-                    })
-                    .context("Unexpected - contract compiled with solc has no source code")?;
-                let abi = contract_info
-                    .abi
-                    .context("Unexpected - contract compiled with solc as no ABI")?;
-                map.insert(contract_name, (source_code, abi));
-            }
-        }
-
-        Ok(compiler_output)
+        Ok(CompilerOutput {
+            input,
+            output: parsed,
+            error: None,
+        })
    }

    fn new(solc_path: PathBuf) -> Self {
@@ -179,57 +95,9 @@ impl SolidityCompiler for Solc {

    fn get_compiler_executable(
        config: &Arguments,
-        version: impl Into<VersionOrRequirement>,
+        version: semver::Version,
    ) -> anyhow::Result<PathBuf> {
        let path = download_solc(config.directory(), version, config.wasm)?;
        Ok(path)
    }
-
-    fn version(&self) -> anyhow::Result<semver::Version> {
-        // The following is the parsing code for the version from the solc version strings which
-        // look like the following:
-        // ```
-        // solc, the solidity compiler commandline interface
-        // Version: 0.8.30+commit.73712a01.Darwin.appleclang
-        // ```
-
-        let child = Command::new(self.solc_path.as_path())
-            .arg("--version")
-            .stdout(Stdio::piped())
-            .spawn()?;
-        let output = child.wait_with_output()?;
-        let output = String::from_utf8_lossy(&output.stdout);
-        let version_line = output
-            .split("Version: ")
-            .nth(1)
-            .context("Version parsing failed")?;
-        let version_string = version_line
-            .split("+")
-            .next()
-            .context("Version parsing failed")?;
-
-        Version::parse(version_string).map_err(Into::into)
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use super::*;
-
-    #[test]
-    fn compiler_version_can_be_obtained() {
-        // Arrange
-        let args = Arguments::default();
-        let path = Solc::get_compiler_executable(&args, Version::new(0, 7, 6)).unwrap();
-        let compiler = Solc::new(path);
-
-        // Act
-        let version = compiler.version();
-
-        // Assert
-        assert_eq!(
-            version.expect("Failed to get version"),
-            Version::new(0, 7, 6)
-        )
-    }
 }
@@ -1,9 +0,0 @@
-// SPDX-License-Identifier: MIT
-
-pragma solidity >=0.6.9;
-
-contract Callable {
-    function f(uint[1] memory p1) public pure returns(uint) {
-        return p1[0];
-    }
-}
@@ -1,13 +0,0 @@
-// SPDX-License-Identifier: MIT
-
-// Report https://linear.app/matterlabs/issue/CPR-269/call-with-calldata-variable-bug
-
-pragma solidity >=0.6.9;
-
-import "./callable.sol";
-
-contract Main {
-    function main(uint[1] calldata p1, Callable callable) public returns(uint) {
-        return callable.f(p1);
-    }
-}
@@ -1,21 +0,0 @@
-{ "cases": [ {
-    "name": "first",
-    "inputs": [
-        {
-            "instance": "Main",
-            "method": "main",
-            "calldata": [
-                "1",
-                "Callable.address"
-            ]
-        }
-    ],
-    "expected": [
-        "1"
-    ]
-} ],
-    "contracts": {
-        "Main": "main.sol:Main",
-        "Callable": "callable.sol:Callable"
-    }
-}
@@ -1,81 +0,0 @@
-use std::path::PathBuf;
-
-use revive_dt_compiler::{Compiler, SolidityCompiler, revive_resolc::Resolc, solc::Solc};
-use revive_dt_config::Arguments;
-use semver::Version;
-
-#[test]
-fn contracts_can_be_compiled_with_solc() {
-    // Arrange
-    let args = Arguments::default();
-    let compiler_path = Solc::get_compiler_executable(&args, Version::new(0, 8, 30)).unwrap();
-
-    // Act
-    let output = Compiler::<Solc>::new()
-        .with_source("./tests/assets/array_one_element/callable.sol")
-        .unwrap()
-        .with_source("./tests/assets/array_one_element/main.sol")
-        .unwrap()
-        .try_build(compiler_path);
-
-    // Assert
-    let output = output.expect("Failed to compile");
-    assert_eq!(output.contracts.len(), 2);
-
-    let main_file_contracts = output
-        .contracts
-        .get(
-            &PathBuf::from("./tests/assets/array_one_element/main.sol")
-                .canonicalize()
-                .unwrap(),
-        )
-        .unwrap();
-    let callable_file_contracts = output
-        .contracts
-        .get(
-            &PathBuf::from("./tests/assets/array_one_element/callable.sol")
-                .canonicalize()
-                .unwrap(),
-        )
-        .unwrap();
-    assert!(main_file_contracts.contains_key("Main"));
-    assert!(callable_file_contracts.contains_key("Callable"));
-}
-
-#[test]
-fn contracts_can_be_compiled_with_resolc() {
-    // Arrange
-    let args = Arguments::default();
-    let compiler_path = Resolc::get_compiler_executable(&args, Version::new(0, 8, 30)).unwrap();
-
-    // Act
-    let output = Compiler::<Resolc>::new()
-        .with_source("./tests/assets/array_one_element/callable.sol")
-        .unwrap()
-        .with_source("./tests/assets/array_one_element/main.sol")
-        .unwrap()
-        .try_build(compiler_path);
-
-    // Assert
-    let output = output.expect("Failed to compile");
-    assert_eq!(output.contracts.len(), 2);
-
-    let main_file_contracts = output
-        .contracts
-        .get(
-            &PathBuf::from("./tests/assets/array_one_element/main.sol")
-                .canonicalize()
-                .unwrap(),
-        )
-        .unwrap();
-    let callable_file_contracts = output
-        .contracts
-        .get(
-            &PathBuf::from("./tests/assets/array_one_element/callable.sol")
-                .canonicalize()
-                .unwrap(),
-        )
-        .unwrap();
-    assert!(main_file_contracts.contains_key("Main"));
-    assert!(callable_file_contracts.contains_key("Callable"));
-}
@@ -3,7 +3,6 @@
 use std::{
    fmt::Display,
    path::{Path, PathBuf},
-    sync::LazyLock,
 };

 use alloy::{network::EthereumWallet, signers::local::PrivateKeySigner};
@@ -55,7 +54,7 @@ pub struct Arguments {
    pub geth: PathBuf,

    /// The maximum time in milliseconds to wait for geth to start.
-    #[arg(long = "geth-start-timeout", default_value = "5000")]
+    #[arg(long = "geth-start-timeout", default_value = "2000")]
    pub geth_start_timeout: u64,

    /// The test network chain ID.
@@ -145,14 +144,7 @@ impl Arguments {

 impl Default for Arguments {
    fn default() -> Self {
-        static TEMP_DIR: LazyLock<TempDir> = LazyLock::new(|| TempDir::new().unwrap());
-
-        let default = Arguments::parse_from(["retester"]);
-
-        Arguments {
-            temp_dir: Some(&TEMP_DIR),
-            ..default
-        }
+        Arguments::parse_from(["retester"])
    }
 }

@@ -28,5 +28,6 @@ indexmap = { workspace = true }
 tracing = { workspace = true }
 tracing-subscriber = { workspace = true }
 rayon = { workspace = true }
-semver = { workspace = true }
+revive-solc-json-interface = { workspace = true }
+serde_json = { workspace = true }
 temp-dir = { workspace = true }
@@ -3,11 +3,10 @@
 use std::collections::HashMap;
 use std::fmt::Debug;
 use std::marker::PhantomData;
-use std::path::PathBuf;
+use std::str::FromStr;

 use alloy::json_abi::JsonAbi;
 use alloy::network::{Ethereum, TransactionBuilder};
-use alloy::primitives::U256;
 use alloy::rpc::types::TransactionReceipt;
 use alloy::rpc::types::trace::geth::{
    CallFrame, GethDebugBuiltInTracerType, GethDebugTracerType, GethDebugTracingOptions, GethTrace,
@@ -22,7 +21,7 @@ use alloy::{
 };
 use anyhow::Context;
 use indexmap::IndexMap;
-use semver::Version;
+use serde_json::Value;

 use revive_dt_common::iterators::FilesWithExtensionIterator;
 use revive_dt_compiler::{Compiler, SolidityCompiler};
@@ -34,6 +33,7 @@ use revive_dt_format::{input::Input, metadata::Metadata, mode::SolcMode};
 use revive_dt_node::Node;
 use revive_dt_node_interaction::EthereumNode;
 use revive_dt_report::reporter::{CompilationTask, Report, Span};
+use revive_solc_json_interface::SolcStandardJsonOutput;

 use crate::Platform;

@@ -47,27 +47,23 @@ pub struct State<'a, T: Platform> {
    /// The [`Span`] used in reporting.
    span: Span,

-    /// A map of all of the compiled contracts for the given metadata file.
-    compiled_contracts: HashMap<PathBuf, HashMap<String, (String, JsonAbi)>>,
+    /// A vector of all of the compiled contracts. Each call to [`build_contracts`] adds a new entry
+    /// to this vector.
+    ///
+    /// [`build_contracts`]: State::build_contracts
+    contracts: Vec<SolcStandardJsonOutput>,

    /// This map stores the contracts deployments that have been made for each case within a
    /// metadata file. Note, this means that the state can't be reused between different metadata
    /// files.
    deployed_contracts: HashMap<CaseIdx, HashMap<ContractInstance, (Address, JsonAbi)>>,

-    /// This map stores the variables used for each one of the cases contained in the metadata
-    /// file.
-    variables: HashMap<CaseIdx, HashMap<String, U256>>,
-
    /// This is a map of the deployed libraries.
    ///
    /// This map is not per case, but rather, per metadata file. This means that we do not redeploy
    /// the libraries with each case.
    deployed_libraries: HashMap<ContractInstance, (Address, JsonAbi)>,

-    /// Stores the version of the compiler used for the given Solc mode.
-    compiler_version: HashMap<&'a SolcMode, Version>,
-
    phantom: PhantomData<T>,
 }

@@ -79,11 +75,9 @@ where
        Self {
            config,
            span,
-            compiled_contracts: Default::default(),
+            contracts: Default::default(),
            deployed_contracts: Default::default(),
-            variables: Default::default(),
            deployed_libraries: Default::default(),
-            compiler_version: Default::default(),
            phantom: Default::default(),
        }
    }
@@ -93,11 +87,7 @@ where
        self.span
    }

-    pub fn build_contracts(
-        &mut self,
-        mode: &'a SolcMode,
-        metadata: &Metadata,
-    ) -> anyhow::Result<()> {
+    pub fn build_contracts(&mut self, mode: &SolcMode, metadata: &Metadata) -> anyhow::Result<()> {
        let mut span = self.span();
        span.next_metadata(
            metadata
@@ -107,21 +97,34 @@ where
                .clone(),
        );

-        let compiler_version_or_requirement =
-            mode.compiler_version_to_use(self.config.solc.clone());
-        let compiler_path =
-            T::Compiler::get_compiler_executable(self.config, compiler_version_or_requirement)?;
-        let compiler_version = T::Compiler::new(compiler_path.clone()).version()?;
-        self.compiler_version.insert(mode, compiler_version.clone());
+        let Some(version) = mode.last_patch_version(&self.config.solc) else {
+            anyhow::bail!("unsupported solc version: {:?}", &mode.solc_version);
+        };

-        tracing::info!(%compiler_version, "Resolved the compiler version to use");
+        // Note: if the metadata is contained within a solidity file then this is the only file that
+        // we wish to compile since this is a self-contained test. Otherwise, if it's a JSON file
+        // then we need to compile all of the contracts that are in the directory since imports are
+        // allowed in there.
+        let Some(ref metadata_file_path) = metadata.file_path else {
+            anyhow::bail!("The metadata file path is not defined");
+        };
+        let mut files_to_compile = if metadata_file_path
+            .extension()
+            .is_some_and(|extension| extension.eq_ignore_ascii_case("sol"))
+        {
+            Box::new(std::iter::once(metadata_file_path.clone())) as Box<dyn Iterator<Item = _>>
+        } else {
+            Box::new(
+                FilesWithExtensionIterator::new(metadata.directory()?)
+                    .with_allowed_extension("sol"),
+            )
+        };

        let compiler = Compiler::<T::Compiler>::new()
-            .with_allow_path(metadata.directory()?)
-            .with_optimization(mode.solc_optimize());
-        let mut compiler = metadata
-            .files_to_compile()?
-            .try_fold(compiler, |compiler, path| compiler.with_source(&path))?;
+            .allow_path(metadata.directory()?)
+            .solc_optimizer(mode.solc_optimize());
+        let mut compiler =
+            files_to_compile.try_fold(compiler, |compiler, path| compiler.with_source(&path))?;
        for (library_instance, (library_address, _)) in self.deployed_libraries.iter() {
            let library_ident = &metadata
                .contracts
@@ -146,27 +149,28 @@ where
            json_input: compiler.input(),
            json_output: None,
            mode: mode.clone(),
-            compiler_version: format!("{}", &compiler_version),
+            compiler_version: format!("{}", &version),
            error: None,
        };

+        let compiler_path = T::Compiler::get_compiler_executable(self.config, version)?;
        match compiler.try_build(compiler_path) {
            Ok(output) => {
-                task.json_output = Some(output.clone());
+                task.json_output = Some(output.output.clone());
+                task.error = output.error;
+                self.contracts.push(output.output);

-                for (contract_path, contracts) in output.contracts.into_iter() {
-                    let map = self
-                        .compiled_contracts
-                        .entry(contract_path.clone())
-                        .or_default();
-                    for (contract_name, contract_info) in contracts.into_iter() {
-                        tracing::debug!(
-                            contract_path = %contract_path.display(),
-                            contract_name = contract_name,
-                            "Compiled contract"
-                        );
-
-                        map.insert(contract_name, contract_info);
+                if let Some(last_output) = self.contracts.last() {
+                    if let Some(contracts) = &last_output.contracts {
+                        for (file, contracts_map) in contracts {
+                            for contract_name in contracts_map.keys() {
+                                tracing::debug!(
+                                    "Compiled contract: {contract_name} from file: {file}"
+                                );
+                            }
+                        }
+                    } else {
+                        tracing::warn!("Compiled contracts field is None");
                    }
                }

@@ -184,7 +188,7 @@ where
    pub fn build_and_publish_libraries(
        &mut self,
        metadata: &Metadata,
-        mode: &'a SolcMode,
+        mode: &SolcMode,
        node: &T::Blockchain,
    ) -> anyhow::Result<()> {
        self.build_contracts(mode, metadata)?;
@@ -221,16 +225,7 @@ where
            self.handle_contract_deployment(metadata, case_idx, input, node)?;
        let execution_receipt =
            self.handle_input_execution(case_idx, input, deployment_receipts, node)?;
-        let tracing_result = self.handle_input_call_frame_tracing(&execution_receipt, node)?;
-        self.handle_input_variable_assignment(case_idx, input, &tracing_result)?;
-        self.handle_input_expectations(
-            case_idx,
-            input,
-            &execution_receipt,
-            node,
-            mode,
-            &tracing_result,
-        )?;
+        self.handle_input_expectations(case_idx, input, &execution_receipt, node, mode)?;
        self.handle_input_diff(case_idx, execution_receipt, node)
    }

@@ -251,12 +246,7 @@ where

        let mut instances_we_must_deploy = IndexMap::<ContractInstance, bool>::new();
        for instance in input.find_all_contract_instances().into_iter() {
-            if !self
-                .deployed_contracts
-                .entry(case_idx)
-                .or_insert_with(|| self.deployed_libraries.clone())
-                .contains_key(&instance)
-            {
+            if !self.deployed_contracts(case_idx).contains_key(&instance) {
                instances_we_must_deploy.entry(instance).or_insert(false);
            }
        }
@@ -308,13 +298,7 @@ where
                .remove(&input.instance)
                .context("Failed to find deployment receipt"),
            Method::Fallback | Method::FunctionName(_) => {
-                let tx = match input.legacy_transaction(
-                    self.deployed_contracts
-                        .entry(case_idx)
-                        .or_insert_with(|| self.deployed_libraries.clone()),
-                    &*self.variables.entry(case_idx).or_default(),
-                    node,
-                ) {
+                let tx = match input.legacy_transaction(self.deployed_contracts(case_idx), node) {
                    Ok(tx) => {
                        tracing::debug!("Legacy transaction data: {tx:#?}");
                        tx
@@ -342,56 +326,6 @@ where
        }
    }

-    fn handle_input_call_frame_tracing(
-        &self,
-        execution_receipt: &TransactionReceipt,
-        node: &T::Blockchain,
-    ) -> anyhow::Result<CallFrame> {
-        node.trace_transaction(
-            execution_receipt,
-            GethDebugTracingOptions {
-                tracer: Some(GethDebugTracerType::BuiltInTracer(
-                    GethDebugBuiltInTracerType::CallTracer,
-                )),
-                ..Default::default()
-            },
-        )
-        .map(|trace| {
-            trace
-                .try_into_call_frame()
-                .expect("Impossible - we requested a callframe trace so we must get it back")
-        })
-    }
-
-    fn handle_input_variable_assignment(
-        &mut self,
-        case_idx: CaseIdx,
-        input: &Input,
-        tracing_result: &CallFrame,
-    ) -> anyhow::Result<()> {
-        let Some(ref assignments) = input.variable_assignments else {
-            return Ok(());
-        };
-
-        // Handling the return data variable assignments.
-        for (variable_name, output_word) in assignments.return_data.iter().zip(
-            tracing_result
-                .output
-                .as_ref()
-                .unwrap_or_default()
-                .to_vec()
-                .chunks(32),
-        ) {
-            let value = U256::from_be_slice(output_word);
-            self.variables
-                .entry(case_idx)
-                .or_default()
-                .insert(variable_name.clone(), value);
-        }
-
-        Ok(())
-    }
-
    fn handle_input_expectations(
        &mut self,
        case_idx: CaseIdx,
@@ -399,7 +333,6 @@ where
        execution_receipt: &TransactionReceipt,
        node: &T::Blockchain,
        mode: &SolcMode,
-        tracing_result: &CallFrame,
    ) -> anyhow::Result<()> {
        let span = tracing::info_span!("Handling input expectations");
        let _guard = span.enter();
@@ -432,13 +365,29 @@ where
            }
        }

+        // Note: we need to do assertions and checks on the output of the last call and this isn't
+        // available in the receipt. The only way to get this information is through tracing on the
+        // node.
+        let tracing_result = node
+            .trace_transaction(
+                execution_receipt,
+                GethDebugTracingOptions {
+                    tracer: Some(GethDebugTracerType::BuiltInTracer(
+                        GethDebugBuiltInTracerType::CallTracer,
+                    )),
+                    ..Default::default()
+                },
+            )?
+            .try_into_call_frame()
+            .expect("Impossible - we requested a callframe trace so we must get it back");
+
        for expectation in expectations.iter() {
            self.handle_input_expectation_item(
                case_idx,
                execution_receipt,
                node,
                expectation,
-                tracing_result,
+                &tracing_result,
                mode,
            )?;
        }
@@ -456,33 +405,22 @@ where
        mode: &SolcMode,
    ) -> anyhow::Result<()> {
        if let Some(ref version_requirement) = expectation.compiler_version {
-            let compiler_version = self
-                .compiler_version
-                .get(mode)
-                .context("Failed to find the compiler version fo the solc mode")?;
-            if !version_requirement.matches(compiler_version) {
+            let Some(compiler_version) = mode.last_patch_version(&self.config.solc) else {
+                anyhow::bail!("unsupported solc version: {:?}", &mode.solc_version);
+            };
+            if !version_requirement.matches(&compiler_version) {
                return Ok(());
            }
        }

-        let deployed_contracts = self
-            .deployed_contracts
-            .entry(case_idx)
-            .or_insert_with(|| self.deployed_libraries.clone());
-        let variables = self.variables.entry(case_idx).or_default();
+        let deployed_contracts = self.deployed_contracts(case_idx);
        let chain_state_provider = node;

        // Handling the receipt state assertion.
        let expected = !expectation.exception;
        let actual = execution_receipt.status();
        if actual != expected {
-            tracing::error!(
-                expected,
-                actual,
-                ?execution_receipt,
-                ?tracing_result,
-                "Transaction status assertion failed"
-            );
+            tracing::error!(expected, actual, "Transaction status assertion failed",);
            anyhow::bail!(
                "Transaction status assertion failed - Expected {expected} but got {actual}",
            );
@@ -492,12 +430,7 @@ where
        if let Some(ref expected_calldata) = expectation.return_data {
            let expected = expected_calldata;
            let actual = &tracing_result.output.as_ref().unwrap_or_default();
-            if !expected.is_equivalent(
-                actual,
-                deployed_contracts,
-                &*variables,
-                chain_state_provider,
-            )? {
+            if !expected.is_equivalent(actual, deployed_contracts, chain_state_provider)? {
                tracing::error!(
                    ?execution_receipt,
                    ?expected,
@@ -526,12 +459,17 @@ where
            {
                // Handling the emitter assertion.
                if let Some(ref expected_address) = expected_event.address {
-                    let expected = Address::from_slice(
-                        Calldata::new_compound([expected_address])
-                            .calldata(deployed_contracts, &*variables, node)?
-                            .get(12..32)
-                            .expect("Can't fail"),
-                    );
+                    let expected = if let Some(contract_instance) = expected_address
+                        .strip_suffix(".address")
+                        .map(ContractInstance::new)
+                    {
+                        deployed_contracts
+                            .get(&contract_instance)
+                            .map(|(address, _)| *address)
+                    } else {
+                        Address::from_str(expected_address).ok()
+                    }
+                    .context("Failed to get the address of the event")?;
                    let actual = actual_event.address();
                    if actual != expected {
                        tracing::error!(
@@ -556,7 +494,6 @@ where
                    if !expected.is_equivalent(
                        &actual.0,
                        deployed_contracts,
-                        &*variables,
                        chain_state_provider,
                    )? {
                        tracing::error!(
@@ -574,12 +511,7 @@ where
                // Handling the values assertion.
                let expected = &expected_event.values;
                let actual = &actual_event.data().data;
-                if !expected.is_equivalent(
-                    &actual.0,
-                    deployed_contracts,
-                    &*variables,
-                    chain_state_provider,
-                )? {
+                if !expected.is_equivalent(&actual.0, deployed_contracts, chain_state_provider)? {
                    tracing::error!(
                        ?execution_receipt,
                        ?expected,
@@ -617,6 +549,19 @@ where
        Ok((execution_receipt, trace, diff))
    }

+    fn deployed_contracts(
+        &mut self,
+        case_idx: impl Into<Option<CaseIdx>>,
+    ) -> &mut HashMap<ContractInstance, (Address, JsonAbi)> {
+        match case_idx.into() {
+            Some(case_idx) => self
+                .deployed_contracts
+                .entry(case_idx)
+                .or_insert_with(|| self.deployed_libraries.clone()),
+            None => &mut self.deployed_libraries,
+        }
+    }
+
    /// Gets the information of a deployed contract or library from the state. If it's found to not
    /// be deployed then it will be deployed.
    ///
@@ -635,17 +580,18 @@ where
    ) -> anyhow::Result<(Address, JsonAbi, Option<TransactionReceipt>)> {
        let case_idx = case_idx.into();

-        let deployed_contracts = match case_idx {
-            Some(case_idx) => self
-                .deployed_contracts
-                .entry(case_idx)
-                .or_insert_with(|| self.deployed_libraries.clone()),
-            None => &mut self.deployed_libraries,
-        };
-
-        if let Some((address, abi)) = deployed_contracts.get(contract_instance) {
+        if let Some((address, abi)) = self.deployed_libraries.get(contract_instance) {
            return Ok((*address, abi.clone(), None));
        }
+        if let Some(case_idx) = case_idx {
+            if let Some((address, abi)) = self
+                .deployed_contracts
+                .get(&case_idx)
+                .and_then(|contracts| contracts.get(contract_instance))
+            {
+                return Ok((*address, abi.clone(), None));
+            }
+        }

        let Some(ContractPathAndIdent {
            contract_source_path,
@@ -659,24 +605,30 @@ where
            )
        };

-        let Some((code, abi)) = self
-            .compiled_contracts
-            .get(&contract_source_path)
-            .and_then(|source_file_contracts| source_file_contracts.get(contract_ident.as_ref()))
-            .cloned()
+        let compiled_contract = self.contracts.iter().rev().find_map(|output| {
+            output
+                .contracts
+                .as_ref()?
+                .get(&contract_source_path.display().to_string())
+                .and_then(|source_file_contracts| {
+                    source_file_contracts.get(contract_ident.as_ref())
+                })
+        });
+        let Some(code) = compiled_contract
+            .and_then(|contract| contract.evm.as_ref().and_then(|evm| evm.bytecode.as_ref()))
        else {
            tracing::error!(
                contract_source_path = contract_source_path.display().to_string(),
                contract_ident = contract_ident.as_ref(),
-                "Failed to find information for contract"
+                "Failed to find bytecode for contract"
            );
            anyhow::bail!(
-                "Failed to find information for contract {:?}",
+                "Failed to find bytecode for contract {:?}",
                contract_instance
            )
        };

-        let mut code = match alloy::hex::decode(&code) {
+        let mut code = match alloy::hex::decode(&code.object) {
            Ok(code) => code,
            Err(error) => {
                tracing::error!(
@@ -689,8 +641,30 @@ where
            }
        };

+        let Some(Value::String(metadata)) =
+            compiled_contract.and_then(|contract| contract.metadata.as_ref())
+        else {
+            tracing::error!("Contract does not have a metadata field");
+            anyhow::bail!("Contract does not have a metadata field");
+        };
+
+        let Ok(metadata) = serde_json::from_str::<Value>(metadata) else {
+            tracing::error!(%metadata, "Failed to parse solc metadata into a structured value");
+            anyhow::bail!("Failed to parse solc metadata into a structured value {metadata}");
+        };
+
+        let Some(abi) = metadata.get("output").and_then(|value| value.get("abi")) else {
+            tracing::error!(%metadata, "Failed to access the .output.abi field of the solc metadata");
+            anyhow::bail!("Failed to access the .output.abi field of the solc metadata {metadata}");
+        };
+
+        let Ok(abi) = serde_json::from_value::<JsonAbi>(abi.clone()) else {
+            tracing::error!(%metadata, "Failed to deserialize ABI into a structured format");
+            anyhow::bail!("Failed to deserialize ABI into a structured format {metadata}");
+        };
+
        if let Some(calldata) = calldata {
-            let calldata = calldata.calldata(deployed_contracts, None, node)?;
+            let calldata = calldata.calldata(self.deployed_contracts(case_idx), node)?;
            code.extend(calldata);
        }

@@ -725,7 +699,8 @@ where
            "Deployed contract"
        );

-        deployed_contracts.insert(contract_instance.clone(), (address, abi.clone()));
+        self.deployed_contracts(case_idx)
+            .insert(contract_instance.clone(), (address, abi.clone()));

        Ok((address, abi, Some(receipt)))
    }
@@ -17,25 +17,7 @@ impl Corpus {
    /// Try to read and parse the corpus definition file at given `path`.
    pub fn try_from_path(path: &Path) -> anyhow::Result<Self> {
        let file = File::open(path)?;
-        let mut corpus: Corpus = serde_json::from_reader(file)?;
-
-        // Ensure that the path mentioned in the corpus is relative to the corpus file.
-        // Canonicalizing also helps make the path in any errors unambiguous.
-        corpus.path = path
-            .parent()
-            .ok_or_else(|| {
-                anyhow::anyhow!("Corpus path '{}' does not point to a file", path.display())
-            })?
-            .canonicalize()
-            .map_err(|error| {
-                anyhow::anyhow!(
-                    "Failed to canonicalize path to corpus '{}': {error}",
-                    path.display()
-                )
-            })?
-            .join(corpus.path);
-
-        Ok(corpus)
+        Ok(serde_json::from_reader(file)?)
    }

    /// Scan the corpus base directory and return all tests found.
@@ -2,7 +2,6 @@ use std::collections::HashMap;

 use alloy::{
    eips::BlockNumberOrTag,
-    hex::ToHexExt,
    json_abi::JsonAbi,
    network::TransactionBuilder,
    primitives::{Address, Bytes, U256},
@@ -31,7 +30,6 @@ pub struct Input {
    pub expected: Option<Expected>,
    pub value: Option<EtherValue>,
    pub storage: Option<HashMap<String, Calldata>>,
-    pub variable_assignments: Option<VariableAssignments>,
 }

 #[derive(Clone, Debug, Deserialize, Eq, PartialEq)]
@@ -138,8 +136,6 @@ enum Operation {
    BitwiseAnd,
    BitwiseOr,
    BitwiseXor,
-    ShiftLeft,
-    ShiftRight,
 }

 /// Specify how the contract is called.
@@ -168,14 +164,6 @@ define_wrapper_type!(
    pub struct EtherValue(U256);
 );

-#[derive(Clone, Debug, Default, Deserialize, Eq, PartialEq)]
-pub struct VariableAssignments {
-    /// A vector of the variable names to assign to the return data.
-    ///
-    /// Example: `UniswapV3PoolAddress`
-    pub return_data: Vec<String>,
-}
-
 impl Input {
    pub const fn default_caller() -> Address {
        Address(FixedBytes(alloy::hex!(
@@ -198,17 +186,16 @@ impl Input {
            .ok_or_else(|| anyhow::anyhow!("instance {instance:?} not deployed"))
    }

-    pub fn encoded_input<'a>(
-        &'a self,
+    pub fn encoded_input(
+        &self,
        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
-        variables: impl Into<Option<&'a HashMap<String, U256>>> + Clone,
        chain_state_provider: &impl ResolverApi,
    ) -> anyhow::Result<Bytes> {
        match self.method {
            Method::Deployer | Method::Fallback => {
-                let calldata =
-                    self.calldata
-                        .calldata(deployed_contracts, variables, chain_state_provider)?;
+                let calldata = self
+                    .calldata
+                    .calldata(deployed_contracts, chain_state_provider)?;

                Ok(calldata.into())
            }
@@ -257,7 +244,6 @@ impl Input {
                self.calldata.calldata_into_slice(
                    &mut calldata,
                    deployed_contracts,
-                    variables,
                    chain_state_provider,
                )?;

@@ -267,13 +253,12 @@ impl Input {
    }

    /// Parse this input into a legacy transaction.
-    pub fn legacy_transaction<'a>(
-        &'a self,
+    pub fn legacy_transaction(
+        &self,
        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
-        variables: impl Into<Option<&'a HashMap<String, U256>>> + Clone,
        chain_state_provider: &impl ResolverApi,
    ) -> anyhow::Result<TransactionRequest> {
-        let input_data = self.encoded_input(deployed_contracts, variables, chain_state_provider)?;
+        let input_data = self.encoded_input(deployed_contracts, chain_state_provider)?;
        let transaction_request = TransactionRequest::default().from(self.caller).value(
            self.value
                .map(|value| value.into_inner())
@@ -351,27 +336,20 @@ impl Calldata {
        }
    }

-    pub fn calldata<'a>(
-        &'a self,
+    pub fn calldata(
+        &self,
        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
-        variables: impl Into<Option<&'a HashMap<String, U256>>> + Clone,
        chain_state_provider: &impl ResolverApi,
    ) -> anyhow::Result<Vec<u8>> {
        let mut buffer = Vec::<u8>::with_capacity(self.size_requirement());
-        self.calldata_into_slice(
-            &mut buffer,
-            deployed_contracts,
-            variables,
-            chain_state_provider,
-        )?;
+        self.calldata_into_slice(&mut buffer, deployed_contracts, chain_state_provider)?;
        Ok(buffer)
    }

-    pub fn calldata_into_slice<'a>(
-        &'a self,
+    pub fn calldata_into_slice(
+        &self,
        buffer: &mut Vec<u8>,
        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
-        variables: impl Into<Option<&'a HashMap<String, U256>>> + Clone,
        chain_state_provider: &impl ResolverApi,
    ) -> anyhow::Result<()> {
        match self {
@@ -380,7 +358,7 @@ impl Calldata {
            }
            Calldata::Compound(items) => {
                for (arg_idx, arg) in items.iter().enumerate() {
-                    match arg.resolve(deployed_contracts, variables.clone(), chain_state_provider) {
+                    match arg.resolve(deployed_contracts, chain_state_provider) {
                        Ok(resolved) => {
                            buffer.extend(resolved.to_be_bytes::<32>());
                        }
@@ -403,11 +381,10 @@ impl Calldata {
    }

    /// Checks if this [`Calldata`] is equivalent to the passed calldata bytes.
-    pub fn is_equivalent<'a>(
-        &'a self,
+    pub fn is_equivalent(
+        &self,
        other: &[u8],
        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
-        variables: impl Into<Option<&'a HashMap<String, U256>>> + Clone,
        chain_state_provider: &impl ResolverApi,
    ) -> anyhow::Result<bool> {
        match self {
@@ -430,8 +407,7 @@ impl Calldata {
                        std::borrow::Cow::Borrowed(other)
                    };

-                    let this =
-                        this.resolve(deployed_contracts, variables.clone(), chain_state_provider)?;
+                    let this = this.resolve(deployed_contracts, chain_state_provider)?;
                    let other = U256::from_be_slice(&other);
                    if this != other {
                        return Ok(false);
@@ -444,17 +420,16 @@ impl Calldata {
 }

 impl CalldataItem {
-    fn resolve<'a>(
-        &'a self,
+    fn resolve(
+        &self,
        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
-        variables: impl Into<Option<&'a HashMap<String, U256>>> + Clone,
        chain_state_provider: &impl ResolverApi,
    ) -> anyhow::Result<U256> {
        let mut stack = Vec::<CalldataToken<U256>>::new();

        for token in self
            .calldata_tokens()
-            .map(|token| token.resolve(deployed_contracts, variables.clone(), chain_state_provider))
+            .map(|token| token.resolve(deployed_contracts, chain_state_provider))
        {
            let token = token?;
            let new_token = match token {
@@ -477,14 +452,8 @@ impl CalldataItem {
                        Operation::BitwiseAnd => Some(left_operand & right_operand),
                        Operation::BitwiseOr => Some(left_operand | right_operand),
                        Operation::BitwiseXor => Some(left_operand ^ right_operand),
-                        Operation::ShiftLeft => {
-                            Some(left_operand << usize::try_from(right_operand)?)
-                        }
-                        Operation::ShiftRight => {
-                            Some(left_operand >> usize::try_from(right_operand)?)
-                        }
                    }
-                    .context("Invalid calldata arithmetic operation - Invalid operation")?;
+                    .context("Invalid calldata arithmetic operation")?;

                    CalldataToken::Item(result)
                }
@@ -495,17 +464,8 @@ impl CalldataItem {
        match stack.as_slice() {
            // Empty stack means that we got an empty compound calldata which we resolve to zero.
            [] => Ok(U256::ZERO),
-            [CalldataToken::Item(item)] => {
-                tracing::debug!(
-                    original = self.0,
-                    resolved = item.to_be_bytes::<32>().encode_hex(),
-                    "Resolved a Calldata item"
-                );
-                Ok(*item)
-            }
-            _ => Err(anyhow::anyhow!(
-                "Invalid calldata arithmetic operation - Invalid stack"
-            )),
+            [CalldataToken::Item(item)] => Ok(*item),
+            _ => Err(anyhow::anyhow!("Invalid calldata arithmetic operation")),
        }
    }

@@ -518,8 +478,6 @@ impl CalldataItem {
            "&" => CalldataToken::Operation(Operation::BitwiseAnd),
            "|" => CalldataToken::Operation(Operation::BitwiseOr),
            "^" => CalldataToken::Operation(Operation::BitwiseXor),
-            "<<" => CalldataToken::Operation(Operation::ShiftLeft),
-            ">>" => CalldataToken::Operation(Operation::ShiftRight),
            _ => CalldataToken::Item(item),
        })
    }
@@ -536,7 +494,6 @@ impl<T> CalldataToken<T> {
    const BLOCK_HASH_VARIABLE_PREFIX: &str = "$BLOCK_HASH";
    const BLOCK_NUMBER_VARIABLE: &str = "$BLOCK_NUMBER";
    const BLOCK_TIMESTAMP_VARIABLE: &str = "$BLOCK_TIMESTAMP";
-    const VARIABLE_PREFIX: &str = "$VARIABLE:";

    fn into_item(self) -> Option<T> {
        match self {
@@ -555,10 +512,9 @@ impl<T: AsRef<str>> CalldataToken<T> {
    /// This piece of code is taken from the matter-labs-tester repository which is licensed under
    /// MIT or Apache. The original source code can be found here:
    /// https://github.com/matter-labs/era-compiler-tester/blob/0ed598a27f6eceee7008deab3ff2311075a2ec69/compiler_tester/src/test/case/input/value.rs#L43-L146
-    fn resolve<'a>(
+    fn resolve(
        self,
        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
-        variables: impl Into<Option<&'a HashMap<String, U256>>> + Clone,
        chain_state_provider: &impl ResolverApi,
    ) -> anyhow::Result<CalldataToken<U256>> {
        match self {
@@ -623,16 +579,6 @@ impl<T: AsRef<str>> CalldataToken<T> {
                    let timestamp =
                        chain_state_provider.block_timestamp(BlockNumberOrTag::Latest)?;
                    Ok(U256::from(timestamp))
-                } else if let Some(variable_name) = item.strip_prefix(Self::VARIABLE_PREFIX) {
-                    let Some(variables) = variables.into() else {
-                        anyhow::bail!(
-                            "Variable resolution required but no variables were passed in"
-                        );
-                    };
-                    let Some(variable) = variables.get(variable_name) else {
-                        anyhow::bail!("No variable found with the name {}", variable_name)
-                    };
-                    Ok(*variable)
                } else {
                    Ok(U256::from_str_radix(item, 10)
                        .map_err(|error| anyhow::anyhow!("Invalid decimal literal: {}", error))?)
@@ -753,9 +699,7 @@ mod tests {
            (Address::ZERO, parsed_abi),
        );

-        let encoded = input
-            .encoded_input(&contracts, None, &MockResolver)
-            .unwrap();
+        let encoded = input.encoded_input(&contracts, &MockResolver).unwrap();
        assert!(encoded.0.starts_with(&selector));

        type T = (u64,);
@@ -797,9 +741,7 @@ mod tests {
            (Address::ZERO, parsed_abi),
        );

-        let encoded = input
-            .encoded_input(&contracts, None, &MockResolver)
-            .unwrap();
+        let encoded = input.encoded_input(&contracts, &MockResolver).unwrap();
        assert!(encoded.0.starts_with(&selector));

        type T = (alloy_primitives::Address,);
@@ -844,9 +786,7 @@ mod tests {
            (Address::ZERO, parsed_abi),
        );

-        let encoded = input
-            .encoded_input(&contracts, None, &MockResolver)
-            .unwrap();
+        let encoded = input.encoded_input(&contracts, &MockResolver).unwrap();
        assert!(encoded.0.starts_with(&selector));

        type T = (alloy_primitives::Address,);
@@ -862,7 +802,7 @@ mod tests {
        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
        chain_state_provider: &impl ResolverApi,
    ) -> anyhow::Result<U256> {
-        CalldataItem::new(input).resolve(deployed_contracts, None, chain_state_provider)
+        CalldataItem::new(input).resolve(deployed_contracts, chain_state_provider)
    }

    #[test]
@@ -9,7 +9,7 @@ use std::{

 use serde::{Deserialize, Serialize};

-use revive_dt_common::{iterators::FilesWithExtensionIterator, macros::define_wrapper_type};
+use revive_dt_common::macros::define_wrapper_type;

 use crate::{
    case::Case,
@@ -212,29 +212,6 @@ impl Metadata {
            }
        }
    }
-
-    /// Returns an iterator over all of the solidity files that needs to be compiled for this
-    /// [`Metadata`] object
-    ///
-    /// Note: if the metadata is contained within a solidity file then this is the only file that
-    /// we wish to compile since this is a self-contained test. Otherwise, if it's a JSON file
-    /// then we need to compile all of the contracts that are in the directory since imports are
-    /// allowed in there.
-    pub fn files_to_compile(&self) -> anyhow::Result<Box<dyn Iterator<Item = PathBuf>>> {
-        let Some(ref metadata_file_path) = self.file_path else {
-            anyhow::bail!("The metadata file path is not defined");
-        };
-        if metadata_file_path
-            .extension()
-            .is_some_and(|extension| extension.eq_ignore_ascii_case("sol"))
-        {
-            Ok(Box::new(std::iter::once(metadata_file_path.clone())))
-        } else {
-            Ok(Box::new(
-                FilesWithExtensionIterator::new(self.directory()?).with_allowed_extension("sol"),
-            ))
-        }
-    }
 }

 define_wrapper_type!(
@@ -1,4 +1,3 @@
-use revive_dt_common::types::VersionOrRequirement;
 use semver::Version;
 use serde::de::Deserializer;
 use serde::{Deserialize, Serialize};
@@ -79,15 +78,6 @@ impl SolcMode {

        None
    }
-
-    /// Resolves the [`SolcMode`]'s solidity version requirement into a [`VersionOrRequirement`] if
-    /// the requirement is present on the object. Otherwise, the passed default version is used.
-    pub fn compiler_version_to_use(&self, default: Version) -> VersionOrRequirement {
-        match self.solc_version {
-            Some(ref requirement) => requirement.clone().into(),
-            None => default.into(),
-        }
-    }
 }

 impl<'de> Deserialize<'de> for Mode {
@@ -10,9 +10,9 @@ rust-version.workspace = true
 [dependencies]
 revive-dt-config = { workspace = true }
 revive-dt-format = { workspace = true }
-revive-dt-compiler = { workspace = true }

 anyhow = { workspace = true }
 tracing = { workspace = true }
 serde = { workspace = true }
 serde_json = { workspace = true }
+revive-solc-json-interface = { workspace = true }
@@ -1,6 +1,5 @@
 //! The report analyzer enriches the raw report data.

-use revive_dt_compiler::CompilerOutput;
 use serde::{Deserialize, Serialize};

 use crate::reporter::CompilationTask;
@@ -14,27 +13,41 @@ pub struct CompilerStatistics {
    pub mean_code_size: usize,
    /// The mean size of the optimized YUL IR.
    pub mean_yul_size: usize,
-    /// Is a proxy because the YUL also contains a lot of comments.
+    /// Is a proxy because the YUL also containes a lot of comments.
    pub yul_to_bytecode_size_ratio: f32,
 }

 impl CompilerStatistics {
    /// Cumulatively update the statistics with the next compiler task.
    pub fn sample(&mut self, compilation_task: &CompilationTask) {
-        let Some(CompilerOutput { contracts }) = &compilation_task.json_output else {
+        let Some(output) = &compilation_task.json_output else {
+            return;
+        };
+
+        let Some(contracts) = &output.contracts else {
            return;
        };

        for (_solidity, contracts) in contracts.iter() {
-            for (_name, (bytecode, _)) in contracts.iter() {
+            for (_name, contract) in contracts.iter() {
+                let Some(evm) = &contract.evm else {
+                    continue;
+                };
+                let Some(deploy_code) = &evm.deployed_bytecode else {
+                    continue;
+                };
+
                // The EVM bytecode can be unlinked and thus is not necessarily a decodable hex
                // string; for our statistics this is a good enough approximation.
-                let bytecode_size = bytecode.len() / 2;
+                let bytecode_size = deploy_code.object.len() / 2;

-                // TODO: for the time being we set the yul_size to be zero. We need to change this
-                // when we overhaul the reporting.
+                let yul_size = contract
+                    .ir_optimized
+                    .as_ref()
+                    .expect("if the contract has a deploy code it should also have the opimized IR")
+                    .len();

-                self.update_sizes(bytecode_size, 0);
+                self.update_sizes(bytecode_size, yul_size);
            }
        }
    }
@@ -12,11 +12,11 @@ use std::{
 };

 use anyhow::Context;
-use revive_dt_compiler::{CompilerInput, CompilerOutput};
 use serde::{Deserialize, Serialize};

 use revive_dt_config::{Arguments, TestingPlatform};
 use revive_dt_format::{corpus::Corpus, mode::SolcMode};
+use revive_solc_json_interface::{SolcStandardJsonInput, SolcStandardJsonOutput};

 use crate::analyzer::CompilerStatistics;

@@ -44,9 +44,9 @@ pub struct Report {
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct CompilationTask {
    /// The observed compiler input.
-    pub json_input: CompilerInput,
+    pub json_input: SolcStandardJsonInput,
    /// The observed compiler output.
-    pub json_output: Option<CompilerOutput>,
+    pub json_output: Option<SolcStandardJsonOutput>,
    /// The observed compiler mode.
    pub mode: SolcMode,
    /// The observed compiler version.
@@ -152,7 +152,15 @@ impl Report {
        for (platform, results) in self.compiler_results.iter() {
            for result in results {
                // ignore if there were no errors
-                if result.compilation_task.error.is_none() {
+                if result.compilation_task.error.is_none()
+                    && result
+                        .compilation_task
+                        .json_output
+                        .as_ref()
+                        .and_then(|output| output.errors.as_ref())
+                        .map(|errors| errors.is_empty())
+                        .unwrap_or(true)
+                {
                    continue;
                }

@@ -9,8 +9,6 @@ repository.workspace = true
 rust-version.workspace = true

 [dependencies]
-revive-dt-common = { workspace = true }
-
 anyhow = { workspace = true }
 hex = { workspace = true }
 tracing = { workspace = true }
@@ -5,8 +5,6 @@ use std::{
    sync::{LazyLock, Mutex},
 };

-use revive_dt_common::types::VersionOrRequirement;
-
 use semver::Version;
 use sha2::{Digest, Sha256};

@@ -54,50 +52,27 @@ impl GHDownloader {
    pub const WINDOWS_NAME: &str = "solc-windows.exe";
    pub const WASM_NAME: &str = "soljson.js";

-    fn new(
-        version: impl Into<VersionOrRequirement>,
-        target: &'static str,
-        list: &'static str,
-    ) -> anyhow::Result<Self> {
-        let version_or_requirement = version.into();
-        match version_or_requirement {
-            VersionOrRequirement::Version(version) => Ok(Self {
-                version,
-                target,
-                list,
-            }),
-            VersionOrRequirement::Requirement(requirement) => {
-                let Some(version) = List::download(list)?
-                    .builds
-                    .into_iter()
-                    .map(|build| build.version)
-                    .filter(|version| requirement.matches(version))
-                    .max()
-                else {
-                    anyhow::bail!("Failed to find a version that satisfies {requirement:?}");
-                };
-                Ok(Self {
-                    version,
-                    target,
-                    list,
-                })
-            }
+    fn new(version: Version, target: &'static str, list: &'static str) -> Self {
+        Self {
+            version,
+            target,
+            list,
        }
    }

-    pub fn linux(version: impl Into<VersionOrRequirement>) -> anyhow::Result<Self> {
+    pub fn linux(version: Version) -> Self {
        Self::new(version, Self::LINUX_NAME, List::LINUX_URL)
    }

-    pub fn macosx(version: impl Into<VersionOrRequirement>) -> anyhow::Result<Self> {
+    pub fn macosx(version: Version) -> Self {
        Self::new(version, Self::MACOSX_NAME, List::MACOSX_URL)
    }

-    pub fn windows(version: impl Into<VersionOrRequirement>) -> anyhow::Result<Self> {
+    pub fn windows(version: Version) -> Self {
        Self::new(version, Self::WINDOWS_NAME, List::WINDOWS_URL)
    }

-    pub fn wasm(version: impl Into<VersionOrRequirement>) -> anyhow::Result<Self> {
+    pub fn wasm(version: Version) -> Self {
        Self::new(version, Self::WASM_NAME, List::WASM_URL)
    }

@@ -136,24 +111,24 @@ mod tests {
    #[test]
    fn try_get_windows() {
        let version = List::download(List::WINDOWS_URL).unwrap().latest_release;
-        GHDownloader::windows(version).unwrap().download().unwrap();
+        GHDownloader::windows(version).download().unwrap();
    }

    #[test]
    fn try_get_macosx() {
        let version = List::download(List::MACOSX_URL).unwrap().latest_release;
-        GHDownloader::macosx(version).unwrap().download().unwrap();
+        GHDownloader::macosx(version).download().unwrap();
    }

    #[test]
    fn try_get_linux() {
        let version = List::download(List::LINUX_URL).unwrap().latest_release;
-        GHDownloader::linux(version).unwrap().download().unwrap();
+        GHDownloader::linux(version).download().unwrap();
    }

    #[test]
    fn try_get_wasm() {
        let version = List::download(List::WASM_URL).unwrap().latest_release;
-        GHDownloader::wasm(version).unwrap().download().unwrap();
+        GHDownloader::wasm(version).download().unwrap();
    }
 }
@@ -7,8 +7,7 @@ use std::path::{Path, PathBuf};

 use cache::get_or_download;
 use download::GHDownloader;
-
-use revive_dt_common::types::VersionOrRequirement;
+use semver::Version;

 pub mod cache;
 pub mod download;
@@ -21,7 +20,7 @@ pub mod list;
 /// and not download it again.
 pub fn download_solc(
    cache_directory: &Path,
-    version: impl Into<VersionOrRequirement>,
+    version: Version,
    wasm: bool,
 ) -> anyhow::Result<PathBuf> {
    let downloader = if wasm {
@@ -34,7 +33,7 @@ pub fn download_solc(
        GHDownloader::windows(version)
    } else {
        unimplemented!()
-    }?;
+    };

    get_or_download(cache_directory, &downloader)
 }