./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/28-race_reach_85-list2_racefree.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 da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:32:52,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:32:52,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:32:52,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:32:52,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:32:52,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:32:52,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:32:52,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:32:52,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:32:52,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:32:52,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:32:52,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:32:52,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:32:52,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:32:52,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:32:52,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:32:52,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:32:52,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:32:52,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:32:52,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:32:52,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:32:52,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:32:52,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:32:52,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:32:52,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:32:52,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:32:52,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:32:52,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:32:52,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:32:52,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:32:52,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:32:52,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:32:52,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:32:52,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:32:52,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:32:52,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:32:52,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:32:52,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:32:52,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:32:52,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:32:52,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:32:52,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:32:52,898 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:32:52,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:32:52,900 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:32:52,900 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:32:52,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:32:52,901 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:32:52,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:32:52,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:32:52,902 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:32:52,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:32:52,903 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:32:52,904 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:32:52,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:32:52,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:32:52,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:32:52,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:32:52,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:32:52,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:32:52,905 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:32:52,905 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:32:52,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:32:52,906 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:32:52,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:32:52,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:32:52,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:32:52,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:32:52,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:32:52,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:32:52,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:32:52,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:32:52,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:32:52,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:32:52,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:32:52,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:32:52,908 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:32:52,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:32:52,909 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:32:52,909 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:32:53,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:32:53,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:32:53,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:32:53,267 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:32:53,267 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:32:53,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i [2023-08-29 18:32:54,521 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:32:54,851 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:32:54,851 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i [2023-08-29 18:32:54,866 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759003df9/ed02656cdd504574b7fa670a682e137a/FLAGb8981b3df [2023-08-29 18:32:54,880 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759003df9/ed02656cdd504574b7fa670a682e137a [2023-08-29 18:32:54,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:32:54,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:32:54,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:32:54,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:32:54,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:32:54,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:32:54" (1/1) ... [2023-08-29 18:32:54,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c14f57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:32:54, skipping insertion in model container [2023-08-29 18:32:54,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:32:54" (1/1) ... [2023-08-29 18:32:54,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:32:54,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:32:55,444 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2023-08-29 18:32:55,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:32:55,555 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:32:55,595 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2023-08-29 18:32:55,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:32:55,724 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:32:55,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:32:55 WrapperNode [2023-08-29 18:32:55,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:32:55,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:32:55,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:32:55,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:32:55,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:32:55" (1/1) ... [2023-08-29 18:32:55,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:32:55" (1/1) ... [2023-08-29 18:32:55,829 INFO L138 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 522 [2023-08-29 18:32:55,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:32:55,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:32:55,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:32:55,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:32:55,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:32:55" (1/1) ... [2023-08-29 18:32:55,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:32:55" (1/1) ... [2023-08-29 18:32:55,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:32:55" (1/1) ... [2023-08-29 18:32:55,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:32:55" (1/1) ... [2023-08-29 18:32:55,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:32:55" (1/1) ... [2023-08-29 18:32:55,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:32:55" (1/1) ... [2023-08-29 18:32:55,906 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:32:55" (1/1) ... [2023-08-29 18:32:55,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:32:55" (1/1) ... [2023-08-29 18:32:55,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:32:55,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:32:55,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:32:55,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:32:55,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:32:55" (1/1) ... [2023-08-29 18:32:55,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:32:55,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:32:55,956 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 18:32:55,969 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 18:32:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:32:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 18:32:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-29 18:32:56,002 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-29 18:32:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:32:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:32:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-29 18:32:56,002 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-29 18:32:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:32:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 18:32:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 18:32:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:32:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 18:32:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-08-29 18:32:56,003 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-08-29 18:32:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:32:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:32:56,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:32:56,006 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 18:32:56,173 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:32:56,174 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:32:56,962 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:32:56,973 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:32:56,976 INFO L302 CfgBuilder]: Removed 28 assume(true) statements. [2023-08-29 18:32:56,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:32:56 BoogieIcfgContainer [2023-08-29 18:32:56,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:32:56,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:32:56,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:32:56,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:32:56,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:32:54" (1/3) ... [2023-08-29 18:32:56,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2b2214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:32:56, skipping insertion in model container [2023-08-29 18:32:56,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:32:55" (2/3) ... [2023-08-29 18:32:56,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2b2214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:32:56, skipping insertion in model container [2023-08-29 18:32:56,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:32:56" (3/3) ... [2023-08-29 18:32:56,988 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2023-08-29 18:32:56,995 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:32:57,004 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:32:57,005 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-08-29 18:32:57,005 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:32:57,181 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-08-29 18:32:57,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 522 places, 561 transitions, 1164 flow [2023-08-29 18:32:57,792 INFO L130 PetriNetUnfolder]: 165/1600 cut-off events. [2023-08-29 18:32:57,792 INFO L131 PetriNetUnfolder]: For 36/66 co-relation queries the response was YES. [2023-08-29 18:32:57,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1661 conditions, 1600 events. 165/1600 cut-off events. For 36/66 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11505 event pairs, 0 based on Foata normal form. 0/1337 useless extension candidates. Maximal degree in co-relation 821. Up to 16 conditions per place. [2023-08-29 18:32:57,828 INFO L82 GeneralOperation]: Start removeDead. Operand has 522 places, 561 transitions, 1164 flow [2023-08-29 18:32:57,851 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 522 places, 561 transitions, 1164 flow [2023-08-29 18:32:57,855 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:32:57,868 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 522 places, 561 transitions, 1164 flow [2023-08-29 18:32:57,871 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 522 places, 561 transitions, 1164 flow [2023-08-29 18:32:57,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 522 places, 561 transitions, 1164 flow [2023-08-29 18:32:58,291 INFO L130 PetriNetUnfolder]: 165/1600 cut-off events. [2023-08-29 18:32:58,293 INFO L131 PetriNetUnfolder]: For 36/66 co-relation queries the response was YES. [2023-08-29 18:32:58,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1661 conditions, 1600 events. 165/1600 cut-off events. For 36/66 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11505 event pairs, 0 based on Foata normal form. 0/1337 useless extension candidates. Maximal degree in co-relation 821. Up to 16 conditions per place. [2023-08-29 18:32:58,393 INFO L119 LiptonReduction]: Number of co-enabled transitions 137088 [2023-08-29 18:33:30,810 WARN L222 SmtUtils]: Spent 10.21s on a formula simplification. DAG size of input: 301 DAG size of output: 299 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:33:44,097 WARN L222 SmtUtils]: Spent 13.28s on a formula simplification that was a NOOP. DAG size: 277 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:34:08,023 WARN L222 SmtUtils]: Spent 23.92s on a formula simplification. DAG size of input: 301 DAG size of output: 299 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:34:12,477 INFO L134 LiptonReduction]: Checked pairs total: 880833 [2023-08-29 18:34:12,477 INFO L136 LiptonReduction]: Total number of compositions: 372 [2023-08-29 18:34:12,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:34:12,494 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;@1fc95dbd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:34:12,495 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-08-29 18:34:12,496 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 18:34:12,497 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:34:12,497 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:34:12,497 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 18:34:12,498 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:34:12,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:34:12,502 INFO L85 PathProgramCache]: Analyzing trace with hash 2038, now seen corresponding path program 1 times [2023-08-29 18:34:12,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:34:12,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210610891] [2023-08-29 18:34:12,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:34:12,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:34:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:34:12,630 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 18:34:12,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:34:12,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210610891] [2023-08-29 18:34:12,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210610891] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:34:12,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:34:12,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 18:34:12,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471481130] [2023-08-29 18:34:12,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:34:12,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 18:34:12,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:34:12,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 18:34:12,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 18:34:12,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 517 out of 933 [2023-08-29 18:34:12,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 263 transitions, 568 flow. Second operand has 2 states, 2 states have (on average 517.5) internal successors, (1035), 2 states have internal predecessors, (1035), 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 18:34:12,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:34:12,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 517 of 933 [2023-08-29 18:34:12,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:35:19,081 INFO L130 PetriNetUnfolder]: 401636/785720 cut-off events. [2023-08-29 18:35:19,082 INFO L131 PetriNetUnfolder]: For 8543/8543 co-relation queries the response was YES. [2023-08-29 18:35:21,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1322379 conditions, 785720 events. 401636/785720 cut-off events. For 8543/8543 co-relation queries the response was YES. Maximal size of possible extension queue 12173. Compared 10170019 event pairs, 367428 based on Foata normal form. 49878/734690 useless extension candidates. Maximal degree in co-relation 1246829. Up to 531100 conditions per place. [2023-08-29 18:35:24,839 INFO L137 encePairwiseOnDemand]: 903/933 looper letters, 98 selfloop transitions, 0 changer transitions 0/233 dead transitions. [2023-08-29 18:35:24,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 233 transitions, 704 flow [2023-08-29 18:35:24,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 18:35:24,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 18:35:24,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1162 transitions. [2023-08-29 18:35:24,854 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6227224008574491 [2023-08-29 18:35:24,855 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1162 transitions. [2023-08-29 18:35:24,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1162 transitions. [2023-08-29 18:35:24,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:35:24,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1162 transitions. [2023-08-29 18:35:24,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 581.0) internal successors, (1162), 2 states have internal predecessors, (1162), 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 18:35:24,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 933.0) internal successors, (2799), 3 states have internal predecessors, (2799), 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 18:35:24,876 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 933.0) internal successors, (2799), 3 states have internal predecessors, (2799), 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 18:35:24,878 INFO L175 Difference]: Start difference. First operand has 234 places, 263 transitions, 568 flow. Second operand 2 states and 1162 transitions. [2023-08-29 18:35:24,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 233 transitions, 704 flow [2023-08-29 18:35:25,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 233 transitions, 704 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:35:25,226 INFO L231 Difference]: Finished difference. Result has 227 places, 233 transitions, 508 flow [2023-08-29 18:35:25,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=933, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=508, PETRI_PLACES=227, PETRI_TRANSITIONS=233} [2023-08-29 18:35:25,231 INFO L281 CegarLoopForPetriNet]: 234 programPoint places, -7 predicate places. [2023-08-29 18:35:25,232 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 233 transitions, 508 flow [2023-08-29 18:35:25,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 517.5) internal successors, (1035), 2 states have internal predecessors, (1035), 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 18:35:25,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:35:25,233 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-29 18:35:25,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:35:25,233 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:35:25,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:35:25,234 INFO L85 PathProgramCache]: Analyzing trace with hash 301885532, now seen corresponding path program 1 times [2023-08-29 18:35:25,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:35:25,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062947697] [2023-08-29 18:35:25,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:35:25,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:35:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:35:25,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 18:35:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:35:25,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 18:35:25,396 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 18:35:25,398 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (59 of 60 remaining) [2023-08-29 18:35:25,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2023-08-29 18:35:25,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2023-08-29 18:35:25,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2023-08-29 18:35:25,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2023-08-29 18:35:25,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2023-08-29 18:35:25,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2023-08-29 18:35:25,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2023-08-29 18:35:25,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2023-08-29 18:35:25,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2023-08-29 18:35:25,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2023-08-29 18:35:25,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2023-08-29 18:35:25,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr7ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2023-08-29 18:35:25,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2023-08-29 18:35:25,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr5ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2023-08-29 18:35:25,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr4ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2023-08-29 18:35:25,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr6ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2023-08-29 18:35:25,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2023-08-29 18:35:25,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2023-08-29 18:35:25,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2023-08-29 18:35:25,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2023-08-29 18:35:25,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2023-08-29 18:35:25,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2023-08-29 18:35:25,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2023-08-29 18:35:25,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2023-08-29 18:35:25,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2023-08-29 18:35:25,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2023-08-29 18:35:25,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2023-08-29 18:35:25,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 60 remaining) [2023-08-29 18:35:25,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 60 remaining) [2023-08-29 18:35:25,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2023-08-29 18:35:25,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2023-08-29 18:35:25,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2023-08-29 18:35:25,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2023-08-29 18:35:25,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2023-08-29 18:35:25,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2023-08-29 18:35:25,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr6ASSERT_VIOLATIONDATA_RACE (23 of 60 remaining) [2023-08-29 18:35:25,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (22 of 60 remaining) [2023-08-29 18:35:25,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2023-08-29 18:35:25,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2023-08-29 18:35:25,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2023-08-29 18:35:25,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2023-08-29 18:35:25,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2023-08-29 18:35:25,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2023-08-29 18:35:25,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2023-08-29 18:35:25,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2023-08-29 18:35:25,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2023-08-29 18:35:25,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2023-08-29 18:35:25,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr7ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2023-08-29 18:35:25,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2023-08-29 18:35:25,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr5ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2023-08-29 18:35:25,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2023-08-29 18:35:25,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr6ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2023-08-29 18:35:25,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2023-08-29 18:35:25,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2023-08-29 18:35:25,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2023-08-29 18:35:25,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2023-08-29 18:35:25,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2023-08-29 18:35:25,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2023-08-29 18:35:25,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr6ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2023-08-29 18:35:25,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:35:25,426 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-29 18:35:25,430 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 18:35:25,430 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-29 18:35:25,559 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-08-29 18:35:25,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 848 places, 921 transitions, 1932 flow [2023-08-29 18:35:28,481 INFO L130 PetriNetUnfolder]: 1132/7933 cut-off events. [2023-08-29 18:35:28,481 INFO L131 PetriNetUnfolder]: For 602/839 co-relation queries the response was YES. [2023-08-29 18:35:28,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8607 conditions, 7933 events. 1132/7933 cut-off events. For 602/839 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 80754 event pairs, 22 based on Foata normal form. 0/6631 useless extension candidates. Maximal degree in co-relation 4881. Up to 192 conditions per place. [2023-08-29 18:35:28,736 INFO L82 GeneralOperation]: Start removeDead. Operand has 848 places, 921 transitions, 1932 flow [2023-08-29 18:35:28,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 848 places, 921 transitions, 1932 flow [2023-08-29 18:35:28,891 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:35:28,891 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 848 places, 921 transitions, 1932 flow [2023-08-29 18:35:28,892 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 848 places, 921 transitions, 1932 flow [2023-08-29 18:35:28,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 848 places, 921 transitions, 1932 flow [2023-08-29 18:35:31,256 INFO L130 PetriNetUnfolder]: 1132/7933 cut-off events. [2023-08-29 18:35:31,257 INFO L131 PetriNetUnfolder]: For 602/839 co-relation queries the response was YES. [2023-08-29 18:35:31,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8607 conditions, 7933 events. 1132/7933 cut-off events. For 602/839 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 80754 event pairs, 22 based on Foata normal form. 0/6631 useless extension candidates. Maximal degree in co-relation 4881. Up to 192 conditions per place. [2023-08-29 18:35:32,446 INFO L119 LiptonReduction]: Number of co-enabled transitions 530760 [2023-08-29 18:35:53,582 WARN L222 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 143 DAG size of output: 137 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:36:03,453 WARN L222 SmtUtils]: Spent 7.32s on a formula simplification. DAG size of input: 143 DAG size of output: 137 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:36:16,318 WARN L222 SmtUtils]: Spent 7.27s on a formula simplification that was a NOOP. DAG size: 261 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:36:34,996 WARN L222 SmtUtils]: Spent 17.34s on a formula simplification. DAG size of input: 291 DAG size of output: 289 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:37:03,150 WARN L222 SmtUtils]: Spent 23.80s on a formula simplification. DAG size of input: 291 DAG size of output: 289 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:37:16,122 WARN L222 SmtUtils]: Spent 12.97s on a formula simplification that was a NOOP. DAG size: 277 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:37:16,147 INFO L134 LiptonReduction]: Checked pairs total: 3615908 [2023-08-29 18:37:16,147 INFO L136 LiptonReduction]: Total number of compositions: 547 [2023-08-29 18:37:16,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:37:16,150 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;@1fc95dbd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:37:16,150 INFO L358 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2023-08-29 18:37:16,151 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 18:37:16,151 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:37:16,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:37:16,151 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 18:37:16,152 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-29 18:37:16,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:37:16,152 INFO L85 PathProgramCache]: Analyzing trace with hash 3860, now seen corresponding path program 1 times [2023-08-29 18:37:16,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:37:16,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930073637] [2023-08-29 18:37:16,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:37:16,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:37:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:37:16,175 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 18:37:16,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:37:16,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930073637] [2023-08-29 18:37:16,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930073637] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:37:16,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:37:16,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 18:37:16,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596715910] [2023-08-29 18:37:16,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:37:16,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 18:37:16,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:37:16,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 18:37:16,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 18:37:16,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 839 out of 1468 [2023-08-29 18:37:16,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 478 transitions, 1046 flow. Second operand has 2 states, 2 states have (on average 839.5) internal successors, (1679), 2 states have internal predecessors, (1679), 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 18:37:16,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:37:16,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 839 of 1468 [2023-08-29 18:37:16,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand