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Add optional bounds to unroll loops in BMC model checker

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This commit is contained in:
Pawel Gebal
2023-06-02 18:32:38 +02:00
parent dcecf00e30
commit f15b826431
131 changed files with 2200 additions and 146 deletions
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solc/CommandLineParser.cpp
+18 -3
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@@ -76,6 +76,7 @@ static string const g_strModelCheckerShowUnsupported = "model-checker-show-unsup
static string const g_strModelCheckerSolvers = "model-checker-solvers";
static string const g_strModelCheckerTargets = "model-checker-targets";
static string const g_strModelCheckerTimeout = "model-checker-timeout";
static string const g_strModelCheckerBMCLoopIterations = "model-checker-bmc-loop-iterations";
static string const g_strNone = "none";
static string const g_strNoOptimizeYul = "no-optimize-yul";
static string const g_strOptimize = "optimize";
@@ -861,17 +862,23 @@ General Information)").c_str(),
(
g_strModelCheckerTargets.c_str(),
po::value<string>()->value_name("default,all,constantCondition,underflow,overflow,divByZero,balance,assert,popEmptyArray,outOfBounds")->default_value("default"),
"Select model checker verification targets. "
"Select model checker verification targets."
"Multiple targets can be selected at the same time, separated by a comma and no spaces."
" By default all targets except underflow and overflow are selected."
)
(
g_strModelCheckerTimeout.c_str(),
po::value<unsigned>()->value_name("ms"),
"Set model checker timeout per query in milliseconds. "
"The default is a deterministic resource limit. "
"Set model checker timeout per query in milliseconds."
"The default is a deterministic resource limit."
"A timeout of 0 means no resource/time restrictions for any query."
)
(
g_strModelCheckerBMCLoopIterations.c_str(),
po::value<unsigned>(),
"Set loop unrolling depth for BMC engine."
"Default is 1."
)
;
desc.add(smtCheckerOptions);
@@ -965,6 +972,7 @@ void CommandLineParser::processArgs()
{g_strModelCheckerInvariants, {InputMode::Compiler, InputMode::CompilerWithASTImport}},
{g_strModelCheckerSolvers, {InputMode::Compiler, InputMode::CompilerWithASTImport}},
{g_strModelCheckerTimeout, {InputMode::Compiler, InputMode::CompilerWithASTImport}},
{g_strModelCheckerBMCLoopIterations, {InputMode::Compiler, InputMode::CompilerWithASTImport}},
{g_strModelCheckerContracts, {InputMode::Compiler, InputMode::CompilerWithASTImport}},
{g_strModelCheckerTargets, {InputMode::Compiler, InputMode::CompilerWithASTImport}}
};
@@ -1337,6 +1345,13 @@ void CommandLineParser::processArgs()
if (m_args.count(g_strModelCheckerTimeout))
m_options.modelChecker.settings.timeout = m_args[g_strModelCheckerTimeout].as<unsigned>();
if (m_args.count(g_strModelCheckerBMCLoopIterations))
{
if (!m_options.modelChecker.settings.engine.bmc)
solThrow(CommandLineValidationError, "BMC loop unrolling requires the BMC engine to be enabled");
m_options.modelChecker.settings.bmcLoopIterations = m_args[g_strModelCheckerBMCLoopIterations].as<unsigned>();
}
m_options.metadata.literalSources = (m_args.count(g_strMetadataLiteral) > 0);
m_options.modelChecker.initialize =
m_args.count(g_strModelCheckerContracts) ||