./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_14-funarg_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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_14-funarg_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 f642c67113760bee92d5df6113328ab6bc786120281f498909848eae502de3ab --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:57:14,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:57:14,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:57:14,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:57:14,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:57:14,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:57:14,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:57:14,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:57:14,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:57:14,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:57:14,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:57:14,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:57:14,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:57:14,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:57:14,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:57:14,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:57:14,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:57:14,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:57:14,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:57:14,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:57:14,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:57:14,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:57:14,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:57:14,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:57:14,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:57:14,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:57:14,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:57:14,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:57:14,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:57:14,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:57:14,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:57:14,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:57:14,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:57:14,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:57:14,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:57:14,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:57:14,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:57:14,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:57:14,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:57:14,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:57:14,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:57:14,917 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:57:14,940 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:57:14,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:57:14,941 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:57:14,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:57:14,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:57:14,942 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:57:14,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:57:14,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:57:14,942 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:57:14,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:57:14,943 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:57:14,943 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:57:14,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:57:14,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:57:14,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:57:14,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:57:14,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:57:14,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:57:14,944 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:57:14,944 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:57:14,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:57:14,944 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:57:14,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:57:14,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:57:14,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:57:14,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:57:14,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:57:14,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:57:14,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:57:14,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:57:14,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:57:14,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:57:14,946 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:57:14,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:57:14,946 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:57:14,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:57:14,947 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:57:14,947 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f642c67113760bee92d5df6113328ab6bc786120281f498909848eae502de3ab Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:57:15,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:57:15,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:57:15,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:57:15,165 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:57:15,166 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:57:15,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_14-funarg_rc.i [2023-08-31 19:57:16,113 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:57:16,294 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:57:16,294 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_14-funarg_rc.i [2023-08-31 19:57:16,304 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fa24e2c6/a855184978ce4a7b932fa471d7bf1afb/FLAG8d44db776 [2023-08-31 19:57:16,318 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fa24e2c6/a855184978ce4a7b932fa471d7bf1afb [2023-08-31 19:57:16,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:57:16,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:57:16,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:57:16,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:57:16,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:57:16,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:57:16" (1/1) ... [2023-08-31 19:57:16,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306ea3ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:16, skipping insertion in model container [2023-08-31 19:57:16,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:57:16" (1/1) ... [2023-08-31 19:57:16,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:57:16,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:57:16,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:57:16,679 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:57:16,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:57:16,767 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:57:16,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:16 WrapperNode [2023-08-31 19:57:16,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:57:16,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:57:16,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:57:16,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:57:16,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:16" (1/1) ... [2023-08-31 19:57:16,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:16" (1/1) ... [2023-08-31 19:57:16,815 INFO L138 Inliner]: procedures = 263, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2023-08-31 19:57:16,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:57:16,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:57:16,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:57:16,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:57:16,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:16" (1/1) ... [2023-08-31 19:57:16,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:16" (1/1) ... [2023-08-31 19:57:16,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:16" (1/1) ... [2023-08-31 19:57:16,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:16" (1/1) ... [2023-08-31 19:57:16,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:16" (1/1) ... [2023-08-31 19:57:16,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:16" (1/1) ... [2023-08-31 19:57:16,828 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:16" (1/1) ... [2023-08-31 19:57:16,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:16" (1/1) ... [2023-08-31 19:57:16,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:57:16,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:57:16,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:57:16,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:57:16,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:16" (1/1) ... [2023-08-31 19:57:16,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:57:16,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:57:16,856 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) [2023-08-31 19:57:16,863 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 [2023-08-31 19:57:16,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:57:16,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:57:16,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:57:16,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:57:16,886 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:57:16,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:57:16,887 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:57:16,887 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:57:16,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:57:16,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:57:16,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:57:16,889 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:57:17,032 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:57:17,035 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:57:17,154 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:57:17,158 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:57:17,158 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:57:17,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:17 BoogieIcfgContainer [2023-08-31 19:57:17,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:57:17,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:57:17,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:57:17,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:57:17,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:57:16" (1/3) ... [2023-08-31 19:57:17,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3b4be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:57:17, skipping insertion in model container [2023-08-31 19:57:17,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:16" (2/3) ... [2023-08-31 19:57:17,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3b4be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:57:17, skipping insertion in model container [2023-08-31 19:57:17,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:17" (3/3) ... [2023-08-31 19:57:17,164 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_14-funarg_rc.i [2023-08-31 19:57:17,169 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:57:17,175 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:57:17,175 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-31 19:57:17,175 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:57:17,204 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 19:57:17,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 85 transitions, 178 flow [2023-08-31 19:57:17,249 INFO L130 PetriNetUnfolder]: 0/84 cut-off events. [2023-08-31 19:57:17,249 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:57:17,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 84 events. 0/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-31 19:57:17,251 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 85 transitions, 178 flow [2023-08-31 19:57:17,253 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 77 transitions, 157 flow [2023-08-31 19:57:17,256 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:57:17,262 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 77 transitions, 157 flow [2023-08-31 19:57:17,263 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 77 transitions, 157 flow [2023-08-31 19:57:17,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 157 flow [2023-08-31 19:57:17,277 INFO L130 PetriNetUnfolder]: 0/77 cut-off events. [2023-08-31 19:57:17,277 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:17,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 0/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 19:57:17,278 INFO L119 LiptonReduction]: Number of co-enabled transitions 900 [2023-08-31 19:57:19,164 INFO L134 LiptonReduction]: Checked pairs total: 3378 [2023-08-31 19:57:19,164 INFO L136 LiptonReduction]: Total number of compositions: 55 [2023-08-31 19:57:19,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:57:19,177 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;@7ed61b68, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:57:19,177 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-31 19:57:19,179 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-31 19:57:19,179 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:19,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:19,180 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 19:57:19,180 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:19,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:19,183 INFO L85 PathProgramCache]: Analyzing trace with hash 258817408, now seen corresponding path program 1 times [2023-08-31 19:57:19,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:19,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003874177] [2023-08-31 19:57:19,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:19,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:19,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:19,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:19,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003874177] [2023-08-31 19:57:19,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003874177] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:19,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:19,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:57:19,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191677784] [2023-08-31 19:57:19,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:19,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:57:19,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:19,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:57:19,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:57:19,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 140 [2023-08-31 19:57:19,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2023-08-31 19:57:19,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:19,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 140 [2023-08-31 19:57:19,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:19,500 INFO L130 PetriNetUnfolder]: 48/149 cut-off events. [2023-08-31 19:57:19,501 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:19,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 149 events. 48/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 576 event pairs, 17 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 266. Up to 87 conditions per place. [2023-08-31 19:57:19,504 INFO L137 encePairwiseOnDemand]: 130/140 looper letters, 20 selfloop transitions, 6 changer transitions 1/31 dead transitions. [2023-08-31 19:57:19,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 31 transitions, 119 flow [2023-08-31 19:57:19,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:57:19,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:57:19,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-31 19:57:19,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5976190476190476 [2023-08-31 19:57:19,517 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-31 19:57:19,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-31 19:57:19,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:19,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-31 19:57:19,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2023-08-31 19:57:19,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-31 19:57:19,527 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-31 19:57:19,528 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 49 flow. Second operand 3 states and 251 transitions. [2023-08-31 19:57:19,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 31 transitions, 119 flow [2023-08-31 19:57:19,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 31 transitions, 118 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:57:19,531 INFO L231 Difference]: Finished difference. Result has 28 places, 26 transitions, 92 flow [2023-08-31 19:57:19,532 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=28, PETRI_TRANSITIONS=26} [2023-08-31 19:57:19,535 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2023-08-31 19:57:19,535 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 26 transitions, 92 flow [2023-08-31 19:57:19,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2023-08-31 19:57:19,536 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:19,536 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:19,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:57:19,536 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:19,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:19,537 INFO L85 PathProgramCache]: Analyzing trace with hash 963342738, now seen corresponding path program 1 times [2023-08-31 19:57:19,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:19,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065060890] [2023-08-31 19:57:19,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:19,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:19,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:19,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:19,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065060890] [2023-08-31 19:57:19,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065060890] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:19,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:19,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:57:19,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564357328] [2023-08-31 19:57:19,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:19,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:57:19,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:19,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:57:19,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:57:19,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 140 [2023-08-31 19:57:19,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 26 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2023-08-31 19:57:19,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:19,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 140 [2023-08-31 19:57:19,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:19,652 INFO L130 PetriNetUnfolder]: 50/157 cut-off events. [2023-08-31 19:57:19,653 INFO L131 PetriNetUnfolder]: For 54/56 co-relation queries the response was YES. [2023-08-31 19:57:19,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 157 events. 50/157 cut-off events. For 54/56 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 633 event pairs, 18 based on Foata normal form. 2/152 useless extension candidates. Maximal degree in co-relation 350. Up to 89 conditions per place. [2023-08-31 19:57:19,654 INFO L137 encePairwiseOnDemand]: 134/140 looper letters, 15 selfloop transitions, 5 changer transitions 6/34 dead transitions. [2023-08-31 19:57:19,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 34 transitions, 168 flow [2023-08-31 19:57:19,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:57:19,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:57:19,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2023-08-31 19:57:19,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5880952380952381 [2023-08-31 19:57:19,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 247 transitions. [2023-08-31 19:57:19,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 247 transitions. [2023-08-31 19:57:19,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:19,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 247 transitions. [2023-08-31 19:57:19,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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) [2023-08-31 19:57:19,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-31 19:57:19,658 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-31 19:57:19,658 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 92 flow. Second operand 3 states and 247 transitions. [2023-08-31 19:57:19,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 34 transitions, 168 flow [2023-08-31 19:57:19,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 34 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:57:19,660 INFO L231 Difference]: Finished difference. Result has 30 places, 27 transitions, 112 flow [2023-08-31 19:57:19,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=30, PETRI_TRANSITIONS=27} [2023-08-31 19:57:19,660 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 3 predicate places. [2023-08-31 19:57:19,660 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 27 transitions, 112 flow [2023-08-31 19:57:19,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2023-08-31 19:57:19,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:19,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:19,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:57:19,662 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:19,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:19,662 INFO L85 PathProgramCache]: Analyzing trace with hash 431457898, now seen corresponding path program 1 times [2023-08-31 19:57:19,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:19,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533301280] [2023-08-31 19:57:19,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:19,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:57:19,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 19:57:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:57:19,711 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 19:57:19,711 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 19:57:19,712 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-31 19:57:19,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-31 19:57:19,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-31 19:57:19,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-08-31 19:57:19,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-08-31 19:57:19,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-31 19:57:19,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-31 19:57:19,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-31 19:57:19,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:57:19,715 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-31 19:57:19,719 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:57:19,719 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:57:19,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:57:19 BasicIcfg [2023-08-31 19:57:19,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:57:19,735 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:57:19,735 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:57:19,735 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:57:19,735 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:17" (3/4) ... [2023-08-31 19:57:19,737 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 19:57:19,737 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:57:19,737 INFO L158 Benchmark]: Toolchain (without parser) took 3416.98ms. Allocated memory was 65.0MB in the beginning and 119.5MB in the end (delta: 54.5MB). Free memory was 41.8MB in the beginning and 50.7MB in the end (delta: -8.9MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. [2023-08-31 19:57:19,738 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 65.0MB. Free memory was 42.2MB in the beginning and 42.1MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:57:19,738 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.40ms. Allocated memory was 65.0MB in the beginning and 98.6MB in the end (delta: 33.6MB). Free memory was 41.6MB in the beginning and 62.3MB in the end (delta: -20.6MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2023-08-31 19:57:19,738 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.35ms. Allocated memory is still 98.6MB. Free memory was 62.3MB in the beginning and 59.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:57:19,739 INFO L158 Benchmark]: Boogie Preprocessor took 15.03ms. Allocated memory is still 98.6MB. Free memory was 59.8MB in the beginning and 58.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:57:19,739 INFO L158 Benchmark]: RCFGBuilder took 328.34ms. Allocated memory is still 98.6MB. Free memory was 58.4MB in the beginning and 70.4MB in the end (delta: -11.9MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2023-08-31 19:57:19,740 INFO L158 Benchmark]: TraceAbstraction took 2573.56ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 69.5MB in the beginning and 50.7MB in the end (delta: 18.8MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2023-08-31 19:57:19,740 INFO L158 Benchmark]: Witness Printer took 2.25ms. Allocated memory is still 119.5MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:57:19,742 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 65.0MB. Free memory was 42.2MB in the beginning and 42.1MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.40ms. Allocated memory was 65.0MB in the beginning and 98.6MB in the end (delta: 33.6MB). Free memory was 41.6MB in the beginning and 62.3MB in the end (delta: -20.6MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.35ms. Allocated memory is still 98.6MB. Free memory was 62.3MB in the beginning and 59.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.03ms. Allocated memory is still 98.6MB. Free memory was 59.8MB in the beginning and 58.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 328.34ms. Allocated memory is still 98.6MB. Free memory was 58.4MB in the beginning and 70.4MB in the end (delta: -11.9MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2573.56ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 69.5MB in the beginning and 50.7MB in the end (delta: 18.8MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * Witness Printer took 2.25ms. Allocated memory is still 119.5MB. Free memory is still 50.7MB. 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: 1.9s, 81 PlacesBefore, 27 PlacesAfterwards, 77 TransitionsBefore, 23 TransitionsAfterwards, 900 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 55 TotalNumberOfCompositions, 3378 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1329, independent: 1090, independent conditional: 0, independent unconditional: 1090, dependent: 239, dependent conditional: 0, dependent unconditional: 239, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 490, independent: 453, independent conditional: 0, independent unconditional: 453, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1329, independent: 637, independent conditional: 0, independent unconditional: 637, dependent: 202, dependent conditional: 0, dependent unconditional: 202, unknown: 490, unknown conditional: 0, unknown unconditional: 490] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 934]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t mutex3 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L931] 0 pthread_t id; [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L923] EXPR 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=0] [L923] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=1] [L923] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=1, myglobal=myglobal+1=25] [L934] 0 printf("myglobal equals %d\n",myglobal) VAL [arg={0:0}, arg={0:0}, id={5:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=1, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [923] and C: printf("myglobal equals %d\n",myglobal) [934] - UnprovableResult [Line: 937]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: 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: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: 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, 103 locations, 8 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: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 26 mSDtfsCounter, 88 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=112occurred 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, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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! [2023-08-31 19:57:19,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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