./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.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/13-privatized_19-publish-precision_unknown_2_pos.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 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d --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 20:39:15,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 20:39:15,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 20:39:15,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 20:39:15,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 20:39:15,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 20:39:15,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 20:39:15,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 20:39:15,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 20:39:15,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 20:39:15,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 20:39:15,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 20:39:15,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 20:39:15,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 20:39:15,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 20:39:15,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 20:39:15,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 20:39:15,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 20:39:15,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 20:39:15,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 20:39:15,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 20:39:15,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 20:39:15,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 20:39:15,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 20:39:15,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 20:39:15,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 20:39:15,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 20:39:15,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 20:39:15,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 20:39:15,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 20:39:15,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 20:39:15,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 20:39:15,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 20:39:15,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 20:39:15,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 20:39:15,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 20:39:15,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 20:39:15,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 20:39:15,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 20:39:15,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 20:39:15,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 20:39:15,948 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 20:39:15,975 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 20:39:15,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 20:39:15,976 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 20:39:15,976 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 20:39:15,977 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 20:39:15,977 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 20:39:15,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 20:39:15,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 20:39:15,978 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 20:39:15,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 20:39:15,978 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 20:39:15,979 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 20:39:15,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 20:39:15,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 20:39:15,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 20:39:15,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 20:39:15,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 20:39:15,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 20:39:15,980 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 20:39:15,980 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 20:39:15,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 20:39:15,980 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 20:39:15,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 20:39:15,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 20:39:15,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 20:39:15,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 20:39:15,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:39:15,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 20:39:15,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 20:39:15,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 20:39:15,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 20:39:15,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 20:39:15,982 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 20:39:15,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 20:39:15,982 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 20:39:15,983 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 20:39:15,983 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 20:39:15,983 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 20:39:16,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 20:39:16,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 20:39:16,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 20:39:16,262 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 20:39:16,262 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 20:39:16,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2023-08-31 20:39:17,182 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 20:39:17,374 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 20:39:17,375 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2023-08-31 20:39:17,391 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/687e705e7/278a5a78479d4b758334a9512533b5ce/FLAG6ec00d1f0 [2023-08-31 20:39:17,399 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/687e705e7/278a5a78479d4b758334a9512533b5ce [2023-08-31 20:39:17,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 20:39:17,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 20:39:17,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 20:39:17,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 20:39:17,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 20:39:17,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:39:17" (1/1) ... [2023-08-31 20:39:17,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de02b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:17, skipping insertion in model container [2023-08-31 20:39:17,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:39:17" (1/1) ... [2023-08-31 20:39:17,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 20:39:17,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 20:39:17,530 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/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2023-08-31 20:39:17,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:39:17,623 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 20:39:17,642 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/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2023-08-31 20:39:17,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:39:17,708 INFO L208 MainTranslator]: Completed translation [2023-08-31 20:39:17,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:17 WrapperNode [2023-08-31 20:39:17,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 20:39:17,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 20:39:17,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 20:39:17,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 20:39:17,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:17" (1/1) ... [2023-08-31 20:39:17,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:17" (1/1) ... [2023-08-31 20:39:17,758 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-31 20:39:17,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 20:39:17,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 20:39:17,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 20:39:17,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 20:39:17,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:17" (1/1) ... [2023-08-31 20:39:17,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:17" (1/1) ... [2023-08-31 20:39:17,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:17" (1/1) ... [2023-08-31 20:39:17,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:17" (1/1) ... [2023-08-31 20:39:17,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:17" (1/1) ... [2023-08-31 20:39:17,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:17" (1/1) ... [2023-08-31 20:39:17,789 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:17" (1/1) ... [2023-08-31 20:39:17,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:17" (1/1) ... [2023-08-31 20:39:17,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 20:39:17,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 20:39:17,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 20:39:17,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 20:39:17,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:17" (1/1) ... [2023-08-31 20:39:17,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:39:17,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:39:17,831 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 20:39:17,839 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 20:39:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 20:39:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 20:39:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 20:39:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 20:39:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 20:39:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 20:39:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 20:39:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 20:39:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 20:39:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 20:39:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 20:39:17,860 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 20:39:17,971 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 20:39:17,972 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 20:39:18,084 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 20:39:18,089 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 20:39:18,091 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 20:39:18,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:39:18 BoogieIcfgContainer [2023-08-31 20:39:18,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 20:39:18,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 20:39:18,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 20:39:18,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 20:39:18,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 08:39:17" (1/3) ... [2023-08-31 20:39:18,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558ef7ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:39:18, skipping insertion in model container [2023-08-31 20:39:18,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:17" (2/3) ... [2023-08-31 20:39:18,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558ef7ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:39:18, skipping insertion in model container [2023-08-31 20:39:18,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:39:18" (3/3) ... [2023-08-31 20:39:18,100 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2023-08-31 20:39:18,105 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 20:39:18,112 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 20:39:18,112 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-31 20:39:18,112 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 20:39:18,176 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 20:39:18,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 83 transitions, 174 flow [2023-08-31 20:39:18,256 INFO L130 PetriNetUnfolder]: 1/82 cut-off events. [2023-08-31 20:39:18,256 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 20:39:18,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 82 events. 1/82 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2023-08-31 20:39:18,260 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 83 transitions, 174 flow [2023-08-31 20:39:18,265 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 75 transitions, 153 flow [2023-08-31 20:39:18,268 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 20:39:18,284 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 75 transitions, 153 flow [2023-08-31 20:39:18,288 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 75 transitions, 153 flow [2023-08-31 20:39:18,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 75 transitions, 153 flow [2023-08-31 20:39:18,311 INFO L130 PetriNetUnfolder]: 1/75 cut-off events. [2023-08-31 20:39:18,311 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:39:18,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 75 events. 1/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2023-08-31 20:39:18,313 INFO L119 LiptonReduction]: Number of co-enabled transitions 1056 [2023-08-31 20:39:20,159 INFO L134 LiptonReduction]: Checked pairs total: 3616 [2023-08-31 20:39:20,159 INFO L136 LiptonReduction]: Total number of compositions: 58 [2023-08-31 20:39:20,168 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 20:39:20,172 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;@29e164ea, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 20:39:20,172 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-31 20:39:20,174 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-08-31 20:39:20,175 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:39:20,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:39:20,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 20:39:20,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:39:20,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:39:20,178 INFO L85 PathProgramCache]: Analyzing trace with hash 270200568, now seen corresponding path program 1 times [2023-08-31 20:39:20,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:39:20,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372326467] [2023-08-31 20:39:20,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:39:20,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:39:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:39:20,303 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 20:39:20,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:39:20,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372326467] [2023-08-31 20:39:20,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372326467] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:39:20,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:39:20,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:39:20,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019724710] [2023-08-31 20:39:20,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:39:20,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:39:20,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:39:20,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:39:20,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:39:20,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 141 [2023-08-31 20:39:20,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:39:20,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:39:20,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 141 [2023-08-31 20:39:20,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:39:20,433 INFO L130 PetriNetUnfolder]: 98/263 cut-off events. [2023-08-31 20:39:20,433 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:39:20,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 263 events. 98/263 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1198 event pairs, 14 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 487. Up to 120 conditions per place. [2023-08-31 20:39:20,435 INFO L137 encePairwiseOnDemand]: 135/141 looper letters, 29 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2023-08-31 20:39:20,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 38 transitions, 145 flow [2023-08-31 20:39:20,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:39:20,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:39:20,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2023-08-31 20:39:20,450 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.607565011820331 [2023-08-31 20:39:20,450 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2023-08-31 20:39:20,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2023-08-31 20:39:20,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:39:20,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2023-08-31 20:39:20,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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 20:39:20,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:20,461 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:20,462 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 55 flow. Second operand 3 states and 257 transitions. [2023-08-31 20:39:20,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 38 transitions, 145 flow [2023-08-31 20:39:20,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 38 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:39:20,465 INFO L231 Difference]: Finished difference. Result has 31 places, 27 transitions, 80 flow [2023-08-31 20:39:20,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=31, PETRI_TRANSITIONS=27} [2023-08-31 20:39:20,494 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2023-08-31 20:39:20,494 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 27 transitions, 80 flow [2023-08-31 20:39:20,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:39:20,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:39:20,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:39:20,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 20:39:20,495 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:39:20,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:39:20,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1943125819, now seen corresponding path program 1 times [2023-08-31 20:39:20,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:39:20,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030489395] [2023-08-31 20:39:20,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:39:20,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:39:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:39:20,562 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 20:39:20,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:39:20,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030489395] [2023-08-31 20:39:20,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030489395] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:39:20,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:39:20,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:39:20,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726102022] [2023-08-31 20:39:20,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:39:20,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:39:20,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:39:20,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:39:20,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:39:20,577 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 141 [2023-08-31 20:39:20,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 20:39:20,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:39:20,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 141 [2023-08-31 20:39:20,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:39:20,636 INFO L130 PetriNetUnfolder]: 92/253 cut-off events. [2023-08-31 20:39:20,637 INFO L131 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2023-08-31 20:39:20,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 253 events. 92/253 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1099 event pairs, 66 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 531. Up to 197 conditions per place. [2023-08-31 20:39:20,641 INFO L137 encePairwiseOnDemand]: 137/141 looper letters, 23 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2023-08-31 20:39:20,641 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 152 flow [2023-08-31 20:39:20,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:39:20,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:39:20,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2023-08-31 20:39:20,644 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5721040189125296 [2023-08-31 20:39:20,644 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 242 transitions. [2023-08-31 20:39:20,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 242 transitions. [2023-08-31 20:39:20,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:39:20,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 242 transitions. [2023-08-31 20:39:20,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 20:39:20,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:20,647 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:20,648 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 80 flow. Second operand 3 states and 242 transitions. [2023-08-31 20:39:20,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 152 flow [2023-08-31 20:39:20,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 20:39:20,650 INFO L231 Difference]: Finished difference. Result has 32 places, 29 transitions, 96 flow [2023-08-31 20:39:20,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=32, PETRI_TRANSITIONS=29} [2023-08-31 20:39:20,650 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2023-08-31 20:39:20,650 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 96 flow [2023-08-31 20:39:20,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 20:39:20,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:39:20,651 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:39:20,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 20:39:20,652 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:39:20,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:39:20,655 INFO L85 PathProgramCache]: Analyzing trace with hash 776675939, now seen corresponding path program 1 times [2023-08-31 20:39:20,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:39:20,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286889414] [2023-08-31 20:39:20,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:39:20,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:39:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:39:20,826 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 20:39:20,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:39:20,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286889414] [2023-08-31 20:39:20,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286889414] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:39:20,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:39:20,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:39:20,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929709226] [2023-08-31 20:39:20,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:39:20,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:39:20,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:39:20,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:39:20,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:39:20,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 141 [2023-08-31 20:39:20,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 96 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 20:39:20,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:39:20,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 141 [2023-08-31 20:39:20,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:39:20,883 INFO L130 PetriNetUnfolder]: 66/194 cut-off events. [2023-08-31 20:39:20,883 INFO L131 PetriNetUnfolder]: For 73/76 co-relation queries the response was YES. [2023-08-31 20:39:20,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 194 events. 66/194 cut-off events. For 73/76 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 835 event pairs, 26 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 422. Up to 91 conditions per place. [2023-08-31 20:39:20,885 INFO L137 encePairwiseOnDemand]: 139/141 looper letters, 24 selfloop transitions, 1 changer transitions 2/37 dead transitions. [2023-08-31 20:39:20,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 37 transitions, 176 flow [2023-08-31 20:39:20,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:39:20,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:39:20,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2023-08-31 20:39:20,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5886524822695035 [2023-08-31 20:39:20,886 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 249 transitions. [2023-08-31 20:39:20,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 249 transitions. [2023-08-31 20:39:20,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:39:20,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 249 transitions. [2023-08-31 20:39:20,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 20:39:20,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:20,888 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:20,889 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 96 flow. Second operand 3 states and 249 transitions. [2023-08-31 20:39:20,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 37 transitions, 176 flow [2023-08-31 20:39:20,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 37 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:39:20,891 INFO L231 Difference]: Finished difference. Result has 32 places, 28 transitions, 92 flow [2023-08-31 20:39:20,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=32, PETRI_TRANSITIONS=28} [2023-08-31 20:39:20,892 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2023-08-31 20:39:20,892 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 28 transitions, 92 flow [2023-08-31 20:39:20,892 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 20:39:20,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:39:20,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:39:20,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 20:39:20,893 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:39:20,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:39:20,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1648797974, now seen corresponding path program 1 times [2023-08-31 20:39:20,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:39:20,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673212253] [2023-08-31 20:39:20,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:39:20,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:39:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:39:21,002 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 20:39:21,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:39:21,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673212253] [2023-08-31 20:39:21,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673212253] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:39:21,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:39:21,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 20:39:21,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96001003] [2023-08-31 20:39:21,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:39:21,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 20:39:21,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:39:21,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 20:39:21,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-31 20:39:21,040 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 141 [2023-08-31 20:39:21,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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 20:39:21,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:39:21,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 141 [2023-08-31 20:39:21,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:39:21,072 INFO L130 PetriNetUnfolder]: 23/96 cut-off events. [2023-08-31 20:39:21,072 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-31 20:39:21,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 96 events. 23/96 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 262 event pairs, 7 based on Foata normal form. 12/108 useless extension candidates. Maximal degree in co-relation 206. Up to 51 conditions per place. [2023-08-31 20:39:21,073 INFO L137 encePairwiseOnDemand]: 134/141 looper letters, 11 selfloop transitions, 6 changer transitions 4/26 dead transitions. [2023-08-31 20:39:21,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 118 flow [2023-08-31 20:39:21,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 20:39:21,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 20:39:21,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 303 transitions. [2023-08-31 20:39:21,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5372340425531915 [2023-08-31 20:39:21,075 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 303 transitions. [2023-08-31 20:39:21,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 303 transitions. [2023-08-31 20:39:21,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:39:21,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 303 transitions. [2023-08-31 20:39:21,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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 20:39:21,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 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 20:39:21,078 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 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 20:39:21,078 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 92 flow. Second operand 4 states and 303 transitions. [2023-08-31 20:39:21,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 118 flow [2023-08-31 20:39:21,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 107 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-31 20:39:21,079 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 65 flow [2023-08-31 20:39:21,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=65, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2023-08-31 20:39:21,079 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2023-08-31 20:39:21,080 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 65 flow [2023-08-31 20:39:21,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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 20:39:21,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:39:21,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:39:21,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 20:39:21,080 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:39:21,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:39:21,081 INFO L85 PathProgramCache]: Analyzing trace with hash -492133979, now seen corresponding path program 1 times [2023-08-31 20:39:21,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:39:21,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801550297] [2023-08-31 20:39:21,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:39:21,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:39:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:39:21,116 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 20:39:21,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:39:21,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801550297] [2023-08-31 20:39:21,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801550297] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:39:21,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:39:21,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:39:21,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586041440] [2023-08-31 20:39:21,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:39:21,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:39:21,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:39:21,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:39:21,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:39:21,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 141 [2023-08-31 20:39:21,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 20:39:21,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:39:21,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 141 [2023-08-31 20:39:21,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:39:21,141 INFO L130 PetriNetUnfolder]: 15/62 cut-off events. [2023-08-31 20:39:21,141 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-31 20:39:21,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 62 events. 15/62 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 128 event pairs, 12 based on Foata normal form. 3/64 useless extension candidates. Maximal degree in co-relation 143. Up to 50 conditions per place. [2023-08-31 20:39:21,141 INFO L137 encePairwiseOnDemand]: 139/141 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-08-31 20:39:21,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 99 flow [2023-08-31 20:39:21,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:39:21,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:39:21,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2023-08-31 20:39:21,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5484633569739953 [2023-08-31 20:39:21,142 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 232 transitions. [2023-08-31 20:39:21,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 232 transitions. [2023-08-31 20:39:21,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:39:21,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 232 transitions. [2023-08-31 20:39:21,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 20:39:21,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:21,144 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:21,144 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 65 flow. Second operand 3 states and 232 transitions. [2023-08-31 20:39:21,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 99 flow [2023-08-31 20:39:21,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 93 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 20:39:21,144 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-08-31 20:39:21,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-08-31 20:39:21,145 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -3 predicate places. [2023-08-31 20:39:21,145 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-08-31 20:39:21,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 20:39:21,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-31 20:39:21,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-31 20:39:21,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-31 20:39:21,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-31 20:39:21,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-31 20:39:21,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-31 20:39:21,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-31 20:39:21,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 20:39:21,148 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-31 20:39:21,151 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 20:39:21,151 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 20:39:21,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 08:39:21 BasicIcfg [2023-08-31 20:39:21,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 20:39:21,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 20:39:21,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 20:39:21,153 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 20:39:21,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:39:18" (3/4) ... [2023-08-31 20:39:21,155 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 20:39:21,159 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 20:39:21,161 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-08-31 20:39:21,161 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 20:39:21,161 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 20:39:21,161 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 20:39:21,188 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 20:39:21,188 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 20:39:21,188 INFO L158 Benchmark]: Toolchain (without parser) took 3786.51ms. Allocated memory was 77.6MB in the beginning and 130.0MB in the end (delta: 52.4MB). Free memory was 54.3MB in the beginning and 65.3MB in the end (delta: -11.1MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2023-08-31 20:39:21,189 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 77.6MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:39:21,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.67ms. Allocated memory is still 77.6MB. Free memory was 54.0MB in the beginning and 34.9MB in the end (delta: 19.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-31 20:39:21,189 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.80ms. Allocated memory is still 77.6MB. Free memory was 34.9MB in the beginning and 32.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:39:21,189 INFO L158 Benchmark]: Boogie Preprocessor took 36.45ms. Allocated memory is still 77.6MB. Free memory was 32.8MB in the beginning and 31.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:39:21,189 INFO L158 Benchmark]: RCFGBuilder took 296.02ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 31.2MB in the beginning and 68.8MB in the end (delta: -37.5MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2023-08-31 20:39:21,189 INFO L158 Benchmark]: TraceAbstraction took 3058.33ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 68.2MB in the beginning and 67.4MB in the end (delta: 761.8kB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2023-08-31 20:39:21,189 INFO L158 Benchmark]: Witness Printer took 34.61ms. Allocated memory is still 130.0MB. Free memory was 67.4MB in the beginning and 65.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:39:21,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 77.6MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.67ms. Allocated memory is still 77.6MB. Free memory was 54.0MB in the beginning and 34.9MB in the end (delta: 19.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.80ms. Allocated memory is still 77.6MB. Free memory was 34.9MB in the beginning and 32.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.45ms. Allocated memory is still 77.6MB. Free memory was 32.8MB in the beginning and 31.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 296.02ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 31.2MB in the beginning and 68.8MB in the end (delta: -37.5MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3058.33ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 68.2MB in the beginning and 67.4MB in the end (delta: 761.8kB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Witness Printer took 34.61ms. Allocated memory is still 130.0MB. Free memory was 67.4MB in the beginning and 65.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 78 PlacesBefore, 29 PlacesAfterwards, 75 TransitionsBefore, 26 TransitionsAfterwards, 1056 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 58 TotalNumberOfCompositions, 3616 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1515, independent: 1279, independent conditional: 0, independent unconditional: 1279, dependent: 236, dependent conditional: 0, dependent unconditional: 236, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 581, independent: 537, independent conditional: 0, independent unconditional: 537, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1515, independent: 742, independent conditional: 0, independent unconditional: 742, dependent: 192, dependent conditional: 0, dependent unconditional: 192, unknown: 581, unknown conditional: 0, unknown unconditional: 581] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 109 locations, 7 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: 2.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 194 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 308 IncrementalHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 3 mSDtfsCounter, 308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 20:39:21,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE