./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_50-funptr_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_50-funptr_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1abd6fb835489bc29b4b3171e6e4732aae8910bae019e148dd431ac2077bb570 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 01:59:39,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 01:59:39,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 01:59:39,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 01:59:39,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 01:59:39,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 01:59:39,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 01:59:39,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 01:59:39,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 01:59:39,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 01:59:39,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 01:59:39,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 01:59:39,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 01:59:39,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 01:59:39,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 01:59:39,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 01:59:39,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 01:59:39,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 01:59:39,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 01:59:39,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 01:59:39,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 01:59:39,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 01:59:39,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 01:59:39,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 01:59:39,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 01:59:39,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 01:59:39,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 01:59:39,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 01:59:39,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 01:59:39,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 01:59:39,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 01:59:39,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 01:59:39,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 01:59:39,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 01:59:39,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 01:59:39,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 01:59:39,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 01:59:39,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 01:59:39,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 01:59:39,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 01:59:39,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 01:59:39,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 01:59:39,838 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 01:59:39,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 01:59:39,839 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 01:59:39,839 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 01:59:39,840 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 01:59:39,840 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 01:59:39,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 01:59:39,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 01:59:39,841 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 01:59:39,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 01:59:39,842 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 01:59:39,842 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 01:59:39,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 01:59:39,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 01:59:39,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 01:59:39,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 01:59:39,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 01:59:39,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 01:59:39,843 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 01:59:39,843 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 01:59:39,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 01:59:39,843 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 01:59:39,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 01:59:39,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 01:59:39,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 01:59:39,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 01:59:39,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:59:39,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 01:59:39,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 01:59:39,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 01:59:39,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 01:59:39,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 01:59:39,845 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 01:59:39,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 01:59:39,846 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 01:59:39,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 01:59:39,846 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 01:59:39,846 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1abd6fb835489bc29b4b3171e6e4732aae8910bae019e148dd431ac2077bb570 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 01:59:40,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 01:59:40,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 01:59:40,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 01:59:40,098 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 01:59:40,098 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 01:59:40,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_50-funptr_rc.i [2023-08-29 01:59:41,234 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 01:59:41,456 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 01:59:41,456 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_50-funptr_rc.i [2023-08-29 01:59:41,466 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb90af96/14957dd8bc1a433d832672cd409f65e2/FLAG24bb395c5 [2023-08-29 01:59:41,476 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb90af96/14957dd8bc1a433d832672cd409f65e2 [2023-08-29 01:59:41,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 01:59:41,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 01:59:41,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 01:59:41,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 01:59:41,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 01:59:41,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:59:41" (1/1) ... [2023-08-29 01:59:41,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5163293c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:41, skipping insertion in model container [2023-08-29 01:59:41,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:59:41" (1/1) ... [2023-08-29 01:59:41,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 01:59:41,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 01:59:41,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:59:41,847 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 01:59:41,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:59:41,914 WARN L667 CHandler]: The function fp is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:59:41,920 INFO L208 MainTranslator]: Completed translation [2023-08-29 01:59:41,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:41 WrapperNode [2023-08-29 01:59:41,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 01:59:41,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 01:59:41,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 01:59:41,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 01:59:41,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:41" (1/1) ... [2023-08-29 01:59:41,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:41" (1/1) ... [2023-08-29 01:59:41,954 INFO L138 Inliner]: procedures = 265, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2023-08-29 01:59:41,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 01:59:41,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 01:59:41,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 01:59:41,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 01:59:41,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:41" (1/1) ... [2023-08-29 01:59:41,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:41" (1/1) ... [2023-08-29 01:59:41,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:41" (1/1) ... [2023-08-29 01:59:41,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:41" (1/1) ... [2023-08-29 01:59:41,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:41" (1/1) ... [2023-08-29 01:59:41,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:41" (1/1) ... [2023-08-29 01:59:41,971 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:41" (1/1) ... [2023-08-29 01:59:41,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:41" (1/1) ... [2023-08-29 01:59:41,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 01:59:41,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 01:59:41,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 01:59:41,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 01:59:41,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:41" (1/1) ... [2023-08-29 01:59:41,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:59:41,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:59:42,008 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) [2023-08-29 01:59:42,011 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 [2023-08-29 01:59:42,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 01:59:42,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 01:59:42,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 01:59:42,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 01:59:42,056 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 01:59:42,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 01:59:42,056 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 01:59:42,056 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 01:59:42,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 01:59:42,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 01:59:42,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 01:59:42,058 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 01:59:42,177 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 01:59:42,178 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 01:59:42,390 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 01:59:42,395 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 01:59:42,395 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 01:59:42,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:59:42 BoogieIcfgContainer [2023-08-29 01:59:42,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 01:59:42,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 01:59:42,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 01:59:42,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 01:59:42,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:59:41" (1/3) ... [2023-08-29 01:59:42,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e09d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:59:42, skipping insertion in model container [2023-08-29 01:59:42,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:41" (2/3) ... [2023-08-29 01:59:42,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e09d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:59:42, skipping insertion in model container [2023-08-29 01:59:42,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:59:42" (3/3) ... [2023-08-29 01:59:42,403 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_50-funptr_rc.i [2023-08-29 01:59:42,409 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 01:59:42,416 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 01:59:42,416 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-29 01:59:42,416 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 01:59:42,478 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 01:59:42,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 82 transitions, 172 flow [2023-08-29 01:59:42,561 INFO L130 PetriNetUnfolder]: 1/81 cut-off events. [2023-08-29 01:59:42,561 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 01:59:42,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 81 events. 1/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2023-08-29 01:59:42,565 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 82 transitions, 172 flow [2023-08-29 01:59:42,570 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 74 transitions, 151 flow [2023-08-29 01:59:42,573 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:59:42,598 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 74 transitions, 151 flow [2023-08-29 01:59:42,601 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 74 transitions, 151 flow [2023-08-29 01:59:42,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 151 flow [2023-08-29 01:59:42,623 INFO L130 PetriNetUnfolder]: 1/74 cut-off events. [2023-08-29 01:59:42,623 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:59:42,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 1/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2023-08-29 01:59:42,625 INFO L119 LiptonReduction]: Number of co-enabled transitions 888 [2023-08-29 01:59:44,578 INFO L134 LiptonReduction]: Checked pairs total: 2066 [2023-08-29 01:59:44,578 INFO L136 LiptonReduction]: Total number of compositions: 62 [2023-08-29 01:59:44,595 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 01:59:44,600 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=PETRI_NET, 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;@813253d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 01:59:44,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-29 01:59:44,606 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2023-08-29 01:59:44,606 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:59:44,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:44,607 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 01:59:44,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 01:59:44,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:44,610 INFO L85 PathProgramCache]: Analyzing trace with hash 262442813, now seen corresponding path program 1 times [2023-08-29 01:59:44,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:44,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183269585] [2023-08-29 01:59:44,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:44,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:44,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:59:44,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:44,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183269585] [2023-08-29 01:59:44,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183269585] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:44,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:44,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:59:44,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092916185] [2023-08-29 01:59:44,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:44,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:59:44,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:44,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:59:44,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:59:44,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 144 [2023-08-29 01:59:44,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2023-08-29 01:59:44,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:44,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 144 [2023-08-29 01:59:44,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:44,844 INFO L130 PetriNetUnfolder]: 47/117 cut-off events. [2023-08-29 01:59:44,844 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:59:44,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 117 events. 47/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 427 event pairs, 6 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 222. Up to 56 conditions per place. [2023-08-29 01:59:44,845 INFO L137 encePairwiseOnDemand]: 139/144 looper letters, 20 selfloop transitions, 3 changer transitions 2/27 dead transitions. [2023-08-29 01:59:44,846 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 27 transitions, 107 flow [2023-08-29 01:59:44,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:59:44,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:59:44,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-29 01:59:44,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2023-08-29 01:59:44,855 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-29 01:59:44,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-29 01:59:44,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:44,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-29 01:59:44,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-08-29 01:59:44,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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) [2023-08-29 01:59:44,864 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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) [2023-08-29 01:59:44,865 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 39 flow. Second operand 3 states and 256 transitions. [2023-08-29 01:59:44,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 27 transitions, 107 flow [2023-08-29 01:59:44,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 27 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:59:44,868 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 58 flow [2023-08-29 01:59:44,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2023-08-29 01:59:44,872 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 2 predicate places. [2023-08-29 01:59:44,872 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 58 flow [2023-08-29 01:59:44,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2023-08-29 01:59:44,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:44,873 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 01:59:44,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 01:59:44,873 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 01:59:44,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:44,874 INFO L85 PathProgramCache]: Analyzing trace with hash -454434442, now seen corresponding path program 1 times [2023-08-29 01:59:44,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:44,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534599112] [2023-08-29 01:59:44,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:44,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:44,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:59:44,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:44,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534599112] [2023-08-29 01:59:44,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534599112] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:44,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:44,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:59:44,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93570647] [2023-08-29 01:59:44,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:44,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:59:44,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:44,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:59:44,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:59:44,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 144 [2023-08-29 01:59:44,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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) [2023-08-29 01:59:44,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:44,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 144 [2023-08-29 01:59:44,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:44,966 INFO L130 PetriNetUnfolder]: 53/123 cut-off events. [2023-08-29 01:59:44,966 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2023-08-29 01:59:44,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 123 events. 53/123 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 436 event pairs, 25 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 266. Up to 98 conditions per place. [2023-08-29 01:59:44,967 INFO L137 encePairwiseOnDemand]: 140/144 looper letters, 13 selfloop transitions, 4 changer transitions 7/27 dead transitions. [2023-08-29 01:59:44,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 27 transitions, 124 flow [2023-08-29 01:59:44,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:59:44,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:59:44,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2023-08-29 01:59:44,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5671296296296297 [2023-08-29 01:59:44,969 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 245 transitions. [2023-08-29 01:59:44,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 245 transitions. [2023-08-29 01:59:44,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:44,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 245 transitions. [2023-08-29 01:59:44,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2023-08-29 01:59:44,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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) [2023-08-29 01:59:44,972 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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) [2023-08-29 01:59:44,972 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 58 flow. Second operand 3 states and 245 transitions. [2023-08-29 01:59:44,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 27 transitions, 124 flow [2023-08-29 01:59:44,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 27 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 01:59:44,973 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 68 flow [2023-08-29 01:59:44,973 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=24, PETRI_TRANSITIONS=19} [2023-08-29 01:59:44,974 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 3 predicate places. [2023-08-29 01:59:44,974 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 68 flow [2023-08-29 01:59:44,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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) [2023-08-29 01:59:44,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:44,974 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:44,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 01:59:44,975 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 01:59:44,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:44,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1421851684, now seen corresponding path program 1 times [2023-08-29 01:59:44,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:44,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323551878] [2023-08-29 01:59:44,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:44,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:59:44,994 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 01:59:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:59:45,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 01:59:45,019 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 01:59:45,020 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2023-08-29 01:59:45,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2023-08-29 01:59:45,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-29 01:59:45,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2023-08-29 01:59:45,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2023-08-29 01:59:45,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 01:59:45,022 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-29 01:59:45,027 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 01:59:45,027 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 01:59:45,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 01:59:45 BasicIcfg [2023-08-29 01:59:45,042 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 01:59:45,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 01:59:45,043 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 01:59:45,043 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 01:59:45,044 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:59:42" (3/4) ... [2023-08-29 01:59:45,046 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 01:59:45,046 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 01:59:45,046 INFO L158 Benchmark]: Toolchain (without parser) took 3567.65ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 47.6MB in the beginning and 46.3MB in the end (delta: 1.3MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-08-29 01:59:45,047 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 34.4MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:59:45,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.00ms. Allocated memory is still 71.3MB. Free memory was 47.2MB in the beginning and 36.3MB in the end (delta: 10.9MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2023-08-29 01:59:45,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.27ms. Allocated memory is still 71.3MB. Free memory was 36.3MB in the beginning and 33.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:59:45,048 INFO L158 Benchmark]: Boogie Preprocessor took 19.37ms. Allocated memory is still 71.3MB. Free memory was 33.9MB in the beginning and 32.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:59:45,048 INFO L158 Benchmark]: RCFGBuilder took 421.96ms. Allocated memory is still 71.3MB. Free memory was 32.4MB in the beginning and 38.5MB in the end (delta: -6.1MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2023-08-29 01:59:45,048 INFO L158 Benchmark]: TraceAbstraction took 2644.71ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 37.9MB in the beginning and 46.9MB in the end (delta: -9.0MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2023-08-29 01:59:45,049 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 86.0MB. Free memory was 46.9MB in the beginning and 46.3MB in the end (delta: 608.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:59:45,050 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 34.4MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 441.00ms. Allocated memory is still 71.3MB. Free memory was 47.2MB in the beginning and 36.3MB in the end (delta: 10.9MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.27ms. Allocated memory is still 71.3MB. Free memory was 36.3MB in the beginning and 33.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.37ms. Allocated memory is still 71.3MB. Free memory was 33.9MB in the beginning and 32.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 421.96ms. Allocated memory is still 71.3MB. Free memory was 32.4MB in the beginning and 38.5MB in the end (delta: -6.1MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2644.71ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 37.9MB in the beginning and 46.9MB in the end (delta: -9.0MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 86.0MB. Free memory was 46.9MB in the beginning and 46.3MB in the end (delta: 608.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 77 PlacesBefore, 21 PlacesAfterwards, 74 TransitionsBefore, 18 TransitionsAfterwards, 888 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 62 TotalNumberOfCompositions, 2066 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1257, independent: 1113, independent conditional: 0, independent unconditional: 1113, dependent: 144, dependent conditional: 0, dependent unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 513, independent: 492, independent conditional: 0, independent unconditional: 492, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1257, independent: 621, independent conditional: 0, independent unconditional: 621, dependent: 123, dependent conditional: 0, dependent unconditional: 123, unknown: 513, unknown conditional: 0, unknown unconditional: 513] , Statistics on independence cache: Total cache size (in pairs): 44, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 932]: Data race detected Data race detected The following path leads to a data race: [L919] 0 int (*fp)() = f1; [L920] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L921] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L929] 0 pthread_t id; [L930] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [={-1:0}, arg={0:0}, id={3:0}, mutex1={1:0}, mutex2={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L924] 1 fp = f2 VAL [={-1:1}, arg={0:0}, arg={0:0}, fp = f2=25, mutex1={1:0}, mutex2={2:0}] [L932] 0 fp() VAL [={-1:1}, arg={0:0}, arg={0:0}, fp = f2=25, id={3:0}, mutex1={1:0}, mutex2={2:0}] Now there is a data race on ~fp~0 between C: fp = f2 [924] and C: fp() [932] - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 924]: 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 with 1 thread instances CFG has 3 procedures, 96 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 3 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2023-08-29 01:59:45,084 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE