/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder-VarAbsGlobalSyntactic.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/pthread-atomic/qrcu-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-44940e9-m [2022-11-10 10:46:41,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-10 10:46:41,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-10 10:46:41,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-10 10:46:41,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-10 10:46:41,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-10 10:46:41,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-10 10:46:41,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-10 10:46:41,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-10 10:46:41,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-10 10:46:41,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-10 10:46:41,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-10 10:46:41,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-10 10:46:41,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-10 10:46:41,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-10 10:46:41,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-10 10:46:41,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-10 10:46:41,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-10 10:46:41,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-10 10:46:41,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-10 10:46:41,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-10 10:46:41,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-10 10:46:41,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-10 10:46:41,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-10 10:46:41,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-11-10 10:46:41,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-10 10:46:41,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-10 10:46:41,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-10 10:46:41,107 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder-VarAbsGlobalSyntactic.epf [2022-11-10 10:46:41,136 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-10 10:46:41,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-10 10:46:41,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-10 10:46:41,137 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-10 10:46:41,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-10 10:46:41,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-10 10:46:41,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-10 10:46:41,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-10 10:46:41,138 INFO L138 SettingsManager]: * Use SBE=true [2022-11-10 10:46:41,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-10 10:46:41,139 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-10 10:46:41,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-10 10:46:41,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-10 10:46:41,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-10 10:46:41,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-10 10:46:41,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-10 10:46:41,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-10 10:46:41,139 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-10 10:46:41,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-10 10:46:41,139 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-10 10:46:41,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-10 10:46:41,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-10 10:46:41,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-10 10:46:41,140 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-10 10:46:41,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-10 10:46:41,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-10 10:46:41,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-10 10:46:41,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-10 10:46:41,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-10 10:46:41,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-10 10:46:41,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-10 10:46:41,140 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-10 10:46:41,141 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-10 10:46:41,141 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-10 10:46:41,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-10 10:46:41,141 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-10 10:46:41,141 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-10 10:46:41,141 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-10 10:46:41,141 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-11-10 10:46:41,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-10 10:46:41,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-10 10:46:41,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-10 10:46:41,360 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-10 10:46:41,361 INFO L275 PluginConnector]: CDTParser initialized [2022-11-10 10:46:41,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/qrcu-2.i [2022-11-10 10:46:41,415 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faf5182c3/08cf61f1c89e4b7cbe572bb0c0865063/FLAG8aa721f5b [2022-11-10 10:46:41,814 INFO L306 CDTParser]: Found 1 translation units. [2022-11-10 10:46:41,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/qrcu-2.i [2022-11-10 10:46:41,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faf5182c3/08cf61f1c89e4b7cbe572bb0c0865063/FLAG8aa721f5b [2022-11-10 10:46:41,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faf5182c3/08cf61f1c89e4b7cbe572bb0c0865063 [2022-11-10 10:46:41,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-10 10:46:41,847 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-10 10:46:41,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-10 10:46:41,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-10 10:46:41,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-10 10:46:41,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:46:41" (1/1) ... [2022-11-10 10:46:41,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e9afeb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:41, skipping insertion in model container [2022-11-10 10:46:41,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:46:41" (1/1) ... [2022-11-10 10:46:41,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-10 10:46:41,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-10 10:46:42,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/qrcu-2.i[30690,30703] [2022-11-10 10:46:42,295 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/qrcu-2.i[30912,30925] [2022-11-10 10:46:42,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-10 10:46:42,331 INFO L203 MainTranslator]: Completed pre-run [2022-11-10 10:46:42,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/qrcu-2.i[30690,30703] [2022-11-10 10:46:42,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/qrcu-2.i[30912,30925] [2022-11-10 10:46:42,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-10 10:46:42,441 INFO L208 MainTranslator]: Completed translation [2022-11-10 10:46:42,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:42 WrapperNode [2022-11-10 10:46:42,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-10 10:46:42,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-10 10:46:42,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-10 10:46:42,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-10 10:46:42,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:42" (1/1) ... [2022-11-10 10:46:42,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:42" (1/1) ... [2022-11-10 10:46:42,493 INFO L138 Inliner]: procedures = 177, calls = 44, calls flagged for inlining = 15, calls inlined = 17, statements flattened = 441 [2022-11-10 10:46:42,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-10 10:46:42,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-10 10:46:42,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-10 10:46:42,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-10 10:46:42,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:42" (1/1) ... [2022-11-10 10:46:42,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:42" (1/1) ... [2022-11-10 10:46:42,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:42" (1/1) ... [2022-11-10 10:46:42,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:42" (1/1) ... [2022-11-10 10:46:42,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:42" (1/1) ... [2022-11-10 10:46:42,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:42" (1/1) ... [2022-11-10 10:46:42,528 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:42" (1/1) ... [2022-11-10 10:46:42,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:42" (1/1) ... [2022-11-10 10:46:42,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-10 10:46:42,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-10 10:46:42,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-10 10:46:42,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-10 10:46:42,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:42" (1/1) ... [2022-11-10 10:46:42,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-10 10:46:42,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-10 10:46:42,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-10 10:46:42,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-10 10:46:42,622 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2022-11-10 10:46:42,623 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2022-11-10 10:46:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2022-11-10 10:46:42,623 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2022-11-10 10:46:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-10 10:46:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-10 10:46:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2022-11-10 10:46:42,624 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2022-11-10 10:46:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-10 10:46:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-10 10:46:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-10 10:46:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-10 10:46:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-10 10:46:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-10 10:46:42,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-10 10:46:42,625 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-10 10:46:42,799 INFO L235 CfgBuilder]: Building ICFG [2022-11-10 10:46:42,801 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-10 10:46:43,308 INFO L276 CfgBuilder]: Performing block encoding [2022-11-10 10:46:43,524 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-10 10:46:43,525 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-10 10:46:43,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:46:43 BoogieIcfgContainer [2022-11-10 10:46:43,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-10 10:46:43,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-10 10:46:43,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-10 10:46:43,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-10 10:46:43,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:46:41" (1/3) ... [2022-11-10 10:46:43,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@689c9bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:46:43, skipping insertion in model container [2022-11-10 10:46:43,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:42" (2/3) ... [2022-11-10 10:46:43,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@689c9bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:46:43, skipping insertion in model container [2022-11-10 10:46:43,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:46:43" (3/3) ... [2022-11-10 10:46:43,534 INFO L112 eAbstractionObserver]: Analyzing ICFG qrcu-2.i [2022-11-10 10:46:43,540 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-10 10:46:43,546 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-10 10:46:43,547 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2022-11-10 10:46:43,547 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-10 10:46:43,659 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-10 10:46:43,708 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-11-10 10:46:43,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-10 10:46:43,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-10 10:46:43,711 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-10 10:46:43,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-10 10:46:43,747 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-10 10:46:43,756 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == qrcu_reader2Thread1of1ForFork2 ======== [2022-11-10 10:46:43,761 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77c880f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-10 10:46:43,761 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-10 10:46:44,074 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE === [qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-10 10:46:44,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-10 10:46:44,079 INFO L85 PathProgramCache]: Analyzing trace with hash -564165782, now seen corresponding path program 1 times [2022-11-10 10:46:44,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-10 10:46:44,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969533083] [2022-11-10 10:46:44,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-10 10:46:44,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-10 10:46:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-10 10:46:44,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-10 10:46:44,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-10 10:46:44,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969533083] [2022-11-10 10:46:44,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969533083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-10 10:46:44,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-10 10:46:44,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-10 10:46:44,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54599349] [2022-11-10 10:46:44,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-10 10:46:44,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-10 10:46:44,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-10 10:46:44,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-10 10:46:44,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-10 10:46:44,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:44,283 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-10 10:46:44,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-10 10:46:44,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:44,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:44,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-10 10:46:44,317 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE === [qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-10 10:46:44,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-10 10:46:44,318 INFO L85 PathProgramCache]: Analyzing trace with hash -858684758, now seen corresponding path program 1 times [2022-11-10 10:46:44,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-10 10:46:44,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41362547] [2022-11-10 10:46:44,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-10 10:46:44,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-10 10:46:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-10 10:46:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-10 10:46:44,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-10 10:46:44,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41362547] [2022-11-10 10:46:44,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41362547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-10 10:46:44,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-10 10:46:44,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-10 10:46:44,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808811714] [2022-11-10 10:46:44,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-10 10:46:44,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-10 10:46:44,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-10 10:46:44,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-10 10:46:44,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-10 10:46:44,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:44,391 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-10 10:46:44,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-10 10:46:44,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:44,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:44,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:44,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:44,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-10 10:46:44,432 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE === [qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-10 10:46:44,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-10 10:46:44,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1919312747, now seen corresponding path program 1 times [2022-11-10 10:46:44,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-10 10:46:44,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307561748] [2022-11-10 10:46:44,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-10 10:46:44,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-10 10:46:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-10 10:46:44,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-10 10:46:44,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-10 10:46:44,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307561748] [2022-11-10 10:46:44,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307561748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-10 10:46:44,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-10 10:46:44,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-10 10:46:44,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071052024] [2022-11-10 10:46:44,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-10 10:46:44,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-10 10:46:44,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-10 10:46:44,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-10 10:46:44,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-10 10:46:44,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:44,480 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-10 10:46:44,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-10 10:46:44,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:44,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:44,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:44,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:44,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:44,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:44,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-10 10:46:44,527 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting qrcu_reader2Err8ASSERT_VIOLATIONDATA_RACE === [qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-10 10:46:44,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-10 10:46:44,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1949272664, now seen corresponding path program 1 times [2022-11-10 10:46:44,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-10 10:46:44,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180686433] [2022-11-10 10:46:44,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-10 10:46:44,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-10 10:46:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-10 10:46:44,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-10 10:46:44,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-10 10:46:44,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180686433] [2022-11-10 10:46:44,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180686433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-10 10:46:44,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-10 10:46:44,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-10 10:46:44,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543978631] [2022-11-10 10:46:44,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-10 10:46:44,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-10 10:46:44,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-10 10:46:44,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-10 10:46:44,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-10 10:46:44,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:44,645 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-10 10:46:44,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.5) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-10 10:46:44,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:44,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:44,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:44,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:49,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:49,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:49,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:49,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:49,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-10 10:46:49,737 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting qrcu_reader2Err8ASSERT_VIOLATIONDATA_RACE === [qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-10 10:46:49,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-10 10:46:49,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1545184420, now seen corresponding path program 1 times [2022-11-10 10:46:49,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-10 10:46:49,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871137404] [2022-11-10 10:46:49,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-10 10:46:49,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-10 10:46:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-10 10:46:49,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-10 10:46:49,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-10 10:46:49,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871137404] [2022-11-10 10:46:49,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871137404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-10 10:46:49,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-10 10:46:49,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-10 10:46:49,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113814828] [2022-11-10 10:46:49,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-10 10:46:49,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-10 10:46:49,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-10 10:46:49,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-10 10:46:49,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-10 10:46:49,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:49,790 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-10 10:46:49,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-10 10:46:49,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:49,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:49,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:49,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:49,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:53,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:53,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:53,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:53,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:53,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:53,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-10 10:46:53,586 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting qrcu_reader2Err8ASSERT_VIOLATIONDATA_RACE === [qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-10 10:46:53,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-10 10:46:53,586 INFO L85 PathProgramCache]: Analyzing trace with hash 178495949, now seen corresponding path program 1 times [2022-11-10 10:46:53,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-10 10:46:53,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56535859] [2022-11-10 10:46:53,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-10 10:46:53,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-10 10:46:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-10 10:46:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-10 10:46:53,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-10 10:46:53,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56535859] [2022-11-10 10:46:53,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56535859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-10 10:46:53,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-10 10:46:53,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-10 10:46:53,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914035289] [2022-11-10 10:46:53,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-10 10:46:53,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-10 10:46:53,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-10 10:46:53,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-10 10:46:53,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-10 10:46:53,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:53,647 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-10 10:46:53,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-10 10:46:53,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:53,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:53,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:53,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:53,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:53,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:56,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:56,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:56,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:56,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:56,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:56,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:56,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-10 10:46:56,483 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting qrcu_reader2Err8ASSERT_VIOLATIONDATA_RACE === [qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-10 10:46:56,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-10 10:46:56,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1276789922, now seen corresponding path program 1 times [2022-11-10 10:46:56,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-10 10:46:56,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826593903] [2022-11-10 10:46:56,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-10 10:46:56,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-10 10:46:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-10 10:46:56,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-10 10:46:56,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-10 10:46:56,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826593903] [2022-11-10 10:46:56,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826593903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-10 10:46:56,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-10 10:46:56,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-10 10:46:56,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009231031] [2022-11-10 10:46:56,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-10 10:46:56,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-10 10:46:56,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-10 10:46:56,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-10 10:46:56,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-10 10:46:56,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:56,862 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-10 10:46:56,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-10 10:46:56,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:56,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:56,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:56,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:56,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:56,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:56,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:59,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:46:59,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:59,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:59,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:59,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:59,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:46:59,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-10 10:46:59,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-10 10:46:59,599 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting qrcu_reader2Err8ASSERT_VIOLATIONDATA_RACE === [qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-10 10:46:59,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-10 10:46:59,599 INFO L85 PathProgramCache]: Analyzing trace with hash 520163062, now seen corresponding path program 1 times [2022-11-10 10:46:59,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-10 10:46:59,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760762076] [2022-11-10 10:46:59,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-10 10:46:59,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-10 10:46:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-10 10:47:00,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-10 10:47:00,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-10 10:47:00,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760762076] [2022-11-10 10:47:00,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760762076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-10 10:47:00,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-10 10:47:00,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-10 10:47:00,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175768754] [2022-11-10 10:47:00,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-10 10:47:00,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-10 10:47:00,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-10 10:47:00,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-10 10:47:00,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-10 10:47:00,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:47:00,115 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-10 10:47:00,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-10 10:47:00,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:47:00,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:47:00,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:47:00,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:47:00,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:47:00,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:47:00,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-10 10:47:00,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:47:02,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-10 10:47:02,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:47:02,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:47:02,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:47:02,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:47:02,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-10 10:47:02,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-10 10:47:02,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-10 10:47:02,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-10 10:47:02,587 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting qrcu_reader2Err8ASSERT_VIOLATIONDATA_RACE === [qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-10 10:47:02,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-10 10:47:02,587 INFO L85 PathProgramCache]: Analyzing trace with hash 649245781, now seen corresponding path program 1 times [2022-11-10 10:47:02,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-10 10:47:02,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752424092] [2022-11-10 10:47:02,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-10 10:47:02,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-10 10:47:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-10 10:47:02,611 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-10 10:47:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-10 10:47:02,660 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-10 10:47:02,660 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-10 10:47:02,661 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location qrcu_reader2Err8ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2022-11-10 10:47:02,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2022-11-10 10:47:02,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2022-11-10 10:47:02,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2022-11-10 10:47:02,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err2ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2022-11-10 10:47:02,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err3ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2022-11-10 10:47:02,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err4ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2022-11-10 10:47:02,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err5ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2022-11-10 10:47:02,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err6ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2022-11-10 10:47:02,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err9ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2022-11-10 10:47:02,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err10ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2022-11-10 10:47:02,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err11ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2022-11-10 10:47:02,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err12ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2022-11-10 10:47:02,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-10 10:47:02,668 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-10 10:47:02,669 INFO L307 ceAbstractionStarter]: Result for error location qrcu_reader2Thread1of1ForFork2 was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/4) [2022-11-10 10:47:02,671 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-10 10:47:02,672 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-10 10:47:02,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:47:02 BasicIcfg [2022-11-10 10:47:02,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-10 10:47:02,793 INFO L158 Benchmark]: Toolchain (without parser) took 20945.56ms. Allocated memory was 188.7MB in the beginning and 3.7GB in the end (delta: 3.5GB). Free memory was 129.0MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-11-10 10:47:02,793 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 188.7MB. Free memory was 146.7MB in the beginning and 146.6MB in the end (delta: 136.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-11-10 10:47:02,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 593.97ms. Allocated memory was 188.7MB in the beginning and 268.4MB in the end (delta: 79.7MB). Free memory was 128.7MB in the beginning and 226.1MB in the end (delta: -97.4MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. [2022-11-10 10:47:02,793 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.03ms. Allocated memory is still 268.4MB. Free memory was 226.1MB in the beginning and 223.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-11-10 10:47:02,793 INFO L158 Benchmark]: Boogie Preprocessor took 54.11ms. Allocated memory is still 268.4MB. Free memory was 223.0MB in the beginning and 220.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-11-10 10:47:02,793 INFO L158 Benchmark]: RCFGBuilder took 978.74ms. Allocated memory is still 268.4MB. Free memory was 220.3MB in the beginning and 211.0MB in the end (delta: 9.2MB). Peak memory consumption was 53.3MB. Max. memory is 8.0GB. [2022-11-10 10:47:02,794 INFO L158 Benchmark]: TraceAbstraction took 19262.44ms. Allocated memory was 268.4MB in the beginning and 3.7GB in the end (delta: 3.4GB). Free memory was 210.5MB in the beginning and 2.3GB in the end (delta: -2.1GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-11-10 10:47:02,795 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 188.7MB. Free memory was 146.7MB in the beginning and 146.6MB in the end (delta: 136.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 593.97ms. Allocated memory was 188.7MB in the beginning and 268.4MB in the end (delta: 79.7MB). Free memory was 128.7MB in the beginning and 226.1MB in the end (delta: -97.4MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.03ms. Allocated memory is still 268.4MB. Free memory was 226.1MB in the beginning and 223.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.11ms. Allocated memory is still 268.4MB. Free memory was 223.0MB in the beginning and 220.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 978.74ms. Allocated memory is still 268.4MB. Free memory was 220.3MB in the beginning and 211.0MB in the end (delta: 9.2MB). Peak memory consumption was 53.3MB. Max. memory is 8.0GB. * TraceAbstraction took 19262.44ms. Allocated memory was 268.4MB in the beginning and 3.7GB in the end (delta: 3.4GB). Free memory was 210.5MB in the beginning and 2.3GB in the end (delta: -2.1GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 4380, positive: 4374, positive conditional: 33, positive unconditional: 4341, negative: 6, negative conditional: 4, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 4286, Positive cache size: 4284, Positive conditional cache size: 0, Positive unconditional cache size: 4284, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Independence queries for same thread: 4, Statistics for Abstraction: - StatisticsResult: Independence relation #2 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 3794, positive: 3785, positive conditional: 27, positive unconditional: 3758, negative: 9, negative conditional: 4, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 4490, Positive cache size: 4484, Positive conditional cache size: 0, Positive unconditional cache size: 4484, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Independence queries for same thread: 8, Statistics for Abstraction: - StatisticsResult: Independence relation #3 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 6147, positive: 6128, positive conditional: 64, positive unconditional: 6064, negative: 19, negative conditional: 12, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 6455, Positive cache size: 6444, Positive conditional cache size: 0, Positive unconditional cache size: 6444, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Independence queries for same thread: 20, Statistics for Abstraction: - StatisticsResult: Independence relation #4 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 6944, positive: 6921, positive conditional: 81, positive unconditional: 6840, negative: 23, negative conditional: 13, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 8130, Positive cache size: 8114, Positive conditional cache size: 0, Positive unconditional cache size: 8114, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Independence queries for same thread: 33, Statistics for Abstraction: - StatisticsResult: Independence relation #5 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 746771, positive: 590135, positive conditional: 557249, positive unconditional: 32886, negative: 156636, negative conditional: 156467, negative unconditional: 169, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 23164, Positive cache size: 22713, Positive conditional cache size: 0, Positive unconditional cache size: 22713, Negative cache size: 451, Negative conditional cache size: 0, Negative unconditional cache size: 451, Independence queries for same thread: 105334, Statistics for Abstraction: - StatisticsResult: Independence relation #6 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 770359, positive: 607534, positive conditional: 574676, positive unconditional: 32858, negative: 162825, negative conditional: 162648, negative unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 25076, Positive cache size: 24593, Positive conditional cache size: 0, Positive unconditional cache size: 24593, Negative cache size: 483, Negative conditional cache size: 0, Negative unconditional cache size: 483, Independence queries for same thread: 214676, Statistics for Abstraction: - StatisticsResult: Independence relation #7 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 794018, positive: 625103, positive conditional: 592218, positive unconditional: 32885, negative: 168915, negative conditional: 168738, negative unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 26136, Positive cache size: 25638, Positive conditional cache size: 0, Positive unconditional cache size: 25638, Negative cache size: 498, Negative conditional cache size: 0, Negative unconditional cache size: 498, Independence queries for same thread: 328068, Statistics for Abstraction: - StatisticsResult: Independence relation #8 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 729574, positive: 577135, positive conditional: 544344, positive unconditional: 32791, negative: 152439, negative conditional: 152262, negative unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 29980, Positive cache size: 29481, Positive conditional cache size: 0, Positive unconditional cache size: 29481, Negative cache size: 499, Negative conditional cache size: 0, Negative unconditional cache size: 499, Independence queries for same thread: 430385, Statistics for Abstraction: - StatisticsResult: Independence relation #9 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 728304, positive: 576291, positive conditional: 543497, positive unconditional: 32794, negative: 152013, negative conditional: 151836, negative unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 31832, Positive cache size: 31332, Positive conditional cache size: 0, Positive unconditional cache size: 31332, Negative cache size: 500, Negative conditional cache size: 0, Negative unconditional cache size: 500, Independence queries for same thread: 532424, Statistics for Abstraction: - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.3s, Number of persistent set computation: 45, Number of trivial persistent sets: 32, Underlying independence relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 4380, positive: 4374, positive conditional: 33, positive unconditional: 4341, negative: 6, negative conditional: 4, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 4286, Positive cache size: 4284, Positive conditional cache size: 0, Positive unconditional cache size: 4284, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Independence queries for same thread: 4, Statistics for Abstraction: - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.0s, Number of persistent set computation: 43, Number of trivial persistent sets: 34, Underlying independence relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 3794, positive: 3785, positive conditional: 27, positive unconditional: 3758, negative: 9, negative conditional: 4, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 4490, Positive cache size: 4484, Positive conditional cache size: 0, Positive unconditional cache size: 4484, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Independence queries for same thread: 8, Statistics for Abstraction: - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.0s, Number of persistent set computation: 52, Number of trivial persistent sets: 34, Underlying independence relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 6147, positive: 6128, positive conditional: 64, positive unconditional: 6064, negative: 19, negative conditional: 12, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 6455, Positive cache size: 6444, Positive conditional cache size: 0, Positive unconditional cache size: 6444, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Independence queries for same thread: 20, Statistics for Abstraction: - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.0s, Number of persistent set computation: 57, Number of trivial persistent sets: 34, Underlying independence relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 6944, positive: 6921, positive conditional: 81, positive unconditional: 6840, negative: 23, negative conditional: 13, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 8130, Positive cache size: 8114, Positive conditional cache size: 0, Positive unconditional cache size: 8114, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Independence queries for same thread: 33, Statistics for Abstraction: - StatisticsResult: Persistent set benchmarks Persistent set computation time: 1.2s, Number of persistent set computation: 41956, Number of trivial persistent sets: 34749, Underlying independence relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 746771, positive: 590135, positive conditional: 557249, positive unconditional: 32886, negative: 156636, negative conditional: 156467, negative unconditional: 169, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 23164, Positive cache size: 22713, Positive conditional cache size: 0, Positive unconditional cache size: 22713, Negative cache size: 451, Negative conditional cache size: 0, Negative unconditional cache size: 451, Independence queries for same thread: 105334, Statistics for Abstraction: - StatisticsResult: Persistent set benchmarks Persistent set computation time: 1.0s, Number of persistent set computation: 41861, Number of trivial persistent sets: 34654, Underlying independence relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 770359, positive: 607534, positive conditional: 574676, positive unconditional: 32858, negative: 162825, negative conditional: 162648, negative unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 25076, Positive cache size: 24593, Positive conditional cache size: 0, Positive unconditional cache size: 24593, Negative cache size: 483, Negative conditional cache size: 0, Negative unconditional cache size: 483, Independence queries for same thread: 214676, Statistics for Abstraction: - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.7s, Number of persistent set computation: 41765, Number of trivial persistent sets: 34558, Underlying independence relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 794018, positive: 625103, positive conditional: 592218, positive unconditional: 32885, negative: 168915, negative conditional: 168738, negative unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 26136, Positive cache size: 25638, Positive conditional cache size: 0, Positive unconditional cache size: 25638, Negative cache size: 498, Negative conditional cache size: 0, Negative unconditional cache size: 498, Independence queries for same thread: 328068, Statistics for Abstraction: - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.8s, Number of persistent set computation: 37721, Number of trivial persistent sets: 31159, Underlying independence relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 729574, positive: 577135, positive conditional: 544344, positive unconditional: 32791, negative: 152439, negative conditional: 152262, negative unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 29980, Positive cache size: 29481, Positive conditional cache size: 0, Positive unconditional cache size: 29481, Negative cache size: 499, Negative conditional cache size: 0, Negative unconditional cache size: 499, Independence queries for same thread: 430385, Statistics for Abstraction: - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.6s, Number of persistent set computation: 37595, Number of trivial persistent sets: 31035, Underlying independence relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 728304, positive: 576291, positive conditional: 543497, positive unconditional: 32794, negative: 152013, negative conditional: 151836, negative unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3790291, positive: 2997406, positive conditional: 2812189, positive unconditional: 185217, negative: 792885, negative conditional: 791984, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3257867, positive: 2997406, positive conditional: 0, positive unconditional: 2997406, negative: 260461, negative conditional: 0, negative unconditional: 260461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31832, positive: 31332, positive conditional: 0, positive unconditional: 31332, negative: 500, negative conditional: 0, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3257867, positive: 2966074, positive conditional: 0, positive unconditional: 2966074, negative: 259961, negative conditional: 0, negative unconditional: 259961, unknown: 31832, unknown conditional: 0, unknown unconditional: 31832] , Statistics on independence cache: Total cache size (in pairs): 31832, Positive cache size: 31332, Positive conditional cache size: 0, Positive unconditional cache size: 31332, Negative cache size: 500, Negative conditional cache size: 0, Negative unconditional cache size: 500, Independence queries for same thread: 532424, Statistics for Abstraction: - DataRaceFoundResult [Line: 757]: Data race detected Data race detected The following path leads to a data race: [L689] 0 int idx=0; VAL [idx=0] [L690] 0 int ctr1=1, ctr2=0; VAL [ctr1=1, ctr2=0, idx=0] [L691] 0 int readerprogress1=0, readerprogress2=0; VAL [ctr1=1, ctr2=0, idx=0, readerprogress1=0, readerprogress2=0] [L692] 0 pthread_mutex_t mutex; VAL [ctr1=1, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=0] [L782] 0 pthread_t t1, t2, t3; VAL [ctr1=1, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=0, t1={6:0}, t2={7:0}, t3={5:0}] [L784] FCALL, FORK 0 pthread_create(&t1, 0, qrcu_reader1, 0) VAL [ctr1=1, ctr2=0, idx=0, mutex={3:0}, pthread_create(&t1, 0, qrcu_reader1, 0)=13, readerprogress1=0, readerprogress2=0, t1={6:0}, t2={7:0}, t3={5:0}] [L785] FCALL, FORK 0 pthread_create(&t2, 0, qrcu_reader2, 0) VAL [ctr1=1, ctr2=0, idx=0, mutex={3:0}, pthread_create(&t2, 0, qrcu_reader2, 0)=14, readerprogress1=0, readerprogress2=0, t1={6:0}, t2={7:0}, t3={5:0}] [L743] 2 int myidx; VAL [arg={0:0}, arg={0:0}, ctr1=1, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=0] [L744] COND TRUE 2 1 VAL [arg={0:0}, arg={0:0}, ctr1=1, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=0] [L745] 2 myidx = idx VAL [arg={0:0}, arg={0:0}, ctr1=1, ctr2=0, idx=0, mutex={3:0}, myidx=0, readerprogress1=0, readerprogress2=0] [L746] COND TRUE 2 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, arg={0:0}, arg={0:0}, ctr1=1, ctr2=0, idx=0, mutex={3:0}, myidx=0, readerprogress1=0, readerprogress2=0] [L747] CALL 2 __VERIFIER_atomic_use1(myidx) [L694] EXPR 2 myidx <= 0 && ctr1>0 [L694] EXPR 2 ctr1>0 [L694] EXPR 2 myidx <= 0 && ctr1>0 [L694] CALL 2 assume_abort_if_not(myidx <= 0 && ctr1>0) [L3] COND FALSE 2 !(!cond) [L694] RET 2 assume_abort_if_not(myidx <= 0 && ctr1>0) [L695] 2 ctr1++ [L747] RET 2 __VERIFIER_atomic_use1(myidx) [L756] 2 readerprogress2 = 1 VAL [arg={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, myidx=0, readerprogress1=0, readerprogress2=1] [L757] 2 readerprogress2 = 2 VAL [arg={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, myidx=0, readerprogress1=0, readerprogress2=2, readerprogress2 = 2=50] [L786] FCALL, FORK 0 pthread_create(&t3, 0, qrcu_updater, 0) VAL [ctr1=2, ctr2=0, idx=0, mutex={3:0}, pthread_create(&t3, 0, qrcu_updater, 0)=15, readerprogress1=0, readerprogress2=2, t1={6:0}, t2={7:0}, t3={5:0}] [L787] EXPR 0 \read(t1) VAL [\read(t1)=13, ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=2, t1={6:0}, t2={7:0}, t3={5:0}] [L787] 0 pthread_join(t1, 0) VAL [\read(t1)=13, ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=2, t1={6:0}, t2={7:0}, t3={5:0}] [L724] 1 int myidx; VAL [arg={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=2] [L725] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=2] [L726] 1 myidx = idx VAL [arg={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, myidx=0, readerprogress1=0, readerprogress2=2] [L727] COND TRUE 1 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, arg={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, myidx=0, readerprogress1=0, readerprogress2=2] [L728] CALL 1 __VERIFIER_atomic_use1(myidx) [L694] EXPR 1 myidx <= 0 && ctr1>0 [L694] EXPR 1 ctr1>0 [L694] EXPR 1 myidx <= 0 && ctr1>0 [L694] CALL 1 assume_abort_if_not(myidx <= 0 && ctr1>0) [L3] COND FALSE 1 !(!cond) [L694] RET 1 assume_abort_if_not(myidx <= 0 && ctr1>0) [L695] 1 ctr1++ [L728] RET 1 __VERIFIER_atomic_use1(myidx) [L737] 1 readerprogress1 = 1 VAL [arg={0:0}, arg={0:0}, ctr1=3, ctr2=0, idx=0, mutex={3:0}, myidx=0, readerprogress1=1, readerprogress2=2] [L738] 1 readerprogress1 = 2 VAL [arg={0:0}, arg={0:0}, ctr1=3, ctr2=0, idx=0, mutex={3:0}, myidx=0, readerprogress1=2, readerprogress2=2] [L739] CALL 1 __VERIFIER_atomic_use_done(myidx) [L702] COND TRUE 1 myidx <= 0 [L702] 1 ctr1-- [L739] RET 1 __VERIFIER_atomic_use_done(myidx) [L740] 1 return 0; VAL [\result={0:0}, arg={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, myidx=0, readerprogress1=2, readerprogress2=2] [L787] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\read(t1)=13, ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=2, readerprogress2=2, t1={6:0}, t2={7:0}, t3={5:0}] [L788] EXPR 0 \read(t2) VAL [\read(t2)=14, ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=2, readerprogress2=2, t1={6:0}, t2={7:0}, t3={5:0}] [L788] 0 pthread_join(t2, 0) VAL [\read(t2)=14, ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=2, readerprogress2=2, t1={6:0}, t2={7:0}, t3={5:0}] [L762] 3 int i; VAL [arg={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=2, readerprogress2=2] [L763] 3 int readerstart1=__VERIFIER_nondet_int(), readerstart2=__VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=2, readerprogress2=2, readerstart1=0] [L763] 3 int readerstart1=__VERIFIER_nondet_int(), readerstart2=__VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=2, readerprogress2=2, readerstart1=0, readerstart2=0] [L764] 3 int sum; VAL [arg={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=2, readerprogress2=2, readerstart1=0, readerstart2=0] [L765] CALL 3 __VERIFIER_atomic_take_snapshot(readerstart1, readerstart2) [L706] 3 readerstart1 = readerprogress1 [L707] 3 readerstart2 = readerprogress2 [L765] RET 3 __VERIFIER_atomic_take_snapshot(readerstart1, readerstart2) [L757] 2 readerprogress2 = 2 VAL [arg={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, myidx=0, readerprogress1=2, readerprogress2=2, readerprogress2 = 2=50] Now there is a data race on ~readerprogress2~0 between C: readerstart2 = readerprogress2 [707] and C: readerprogress2 = 2 [757] - UnprovableResult [Line: 745]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 756]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: qrcu_reader2Thread1of1ForFork2 with 1 thread instances CFG has 7 procedures, 531 locations, 110 error locations. Started 1 CEGAR loops. OverallTime: 18.9s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 17.4s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 720 NumberOfCodeBlocks, 720 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 600 ConstructedInterpolants, 0 QuantifiedInterpolants, 772 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-10 10:47:02,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-11-10 10:47:03,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...