./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c --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/weaver/chl-sre-subst.wvr.c -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 039f5312b62da5ff616f0ade8cc5a2dd494698e7519842b003d8d55f65a5fe6c --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 21:35:44,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:35:44,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:35:44,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:35:44,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:35:44,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:35:44,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:35:44,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:35:44,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:35:44,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:35:44,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:35:44,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:35:44,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:35:44,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:35:44,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:35:44,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:35:44,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:35:44,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:35:44,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:35:44,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:35:44,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:35:44,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:35:44,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:35:44,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:35:44,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:35:44,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:35:44,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:35:44,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:35:44,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:35:44,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:35:44,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:35:44,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:35:44,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:35:44,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:35:44,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:35:44,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:35:44,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:35:44,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:35:44,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:35:44,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:35:44,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:35:44,303 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:35:44,328 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:35:44,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:35:44,329 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:35:44,329 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:35:44,330 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:35:44,330 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:35:44,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:35:44,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:35:44,331 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:35:44,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:35:44,331 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:35:44,331 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:35:44,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:35:44,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:35:44,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:35:44,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:35:44,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:35:44,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:35:44,332 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:35:44,333 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:35:44,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:35:44,333 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:35:44,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:35:44,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:35:44,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:35:44,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:35:44,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:35:44,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:35:44,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:35:44,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:35:44,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:35:44,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:35:44,334 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:35:44,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:35:44,335 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:35:44,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:35:44,335 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:35:44,335 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 039f5312b62da5ff616f0ade8cc5a2dd494698e7519842b003d8d55f65a5fe6c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:35:44,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:35:44,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:35:44,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:35:44,565 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:35:44,565 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:35:44,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2023-08-31 21:35:45,393 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:35:45,533 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:35:45,534 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2023-08-31 21:35:45,538 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90565c9db/65abcefe4be94075ae26d69b57073fdf/FLAG21072c62c [2023-08-31 21:35:45,546 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90565c9db/65abcefe4be94075ae26d69b57073fdf [2023-08-31 21:35:45,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:35:45,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:35:45,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:35:45,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:35:45,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:35:45,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:35:45" (1/1) ... [2023-08-31 21:35:45,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a64ee97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:45, skipping insertion in model container [2023-08-31 21:35:45,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:35:45" (1/1) ... [2023-08-31 21:35:45,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:35:45,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:35:45,680 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c[2333,2346] [2023-08-31 21:35:45,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:35:45,687 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:35:45,712 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c[2333,2346] [2023-08-31 21:35:45,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:35:45,721 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:35:45,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:45 WrapperNode [2023-08-31 21:35:45,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:35:45,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:35:45,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:35:45,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:35:45,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:45" (1/1) ... [2023-08-31 21:35:45,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:45" (1/1) ... [2023-08-31 21:35:45,767 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 118 [2023-08-31 21:35:45,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:35:45,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:35:45,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:35:45,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:35:45,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:45" (1/1) ... [2023-08-31 21:35:45,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:45" (1/1) ... [2023-08-31 21:35:45,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:45" (1/1) ... [2023-08-31 21:35:45,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:45" (1/1) ... [2023-08-31 21:35:45,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:45" (1/1) ... [2023-08-31 21:35:45,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:45" (1/1) ... [2023-08-31 21:35:45,803 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:45" (1/1) ... [2023-08-31 21:35:45,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:45" (1/1) ... [2023-08-31 21:35:45,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:35:45,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:35:45,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:35:45,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:35:45,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:45" (1/1) ... [2023-08-31 21:35:45,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:35:45,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:35:45,849 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 21:35:45,851 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 21:35:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:35:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:35:45,873 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:35:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:35:45,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:35:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-31 21:35:45,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-31 21:35:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:35:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:35:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:35:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:35:45,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:35:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:35:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:35:45,876 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 21:35:46,004 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:35:46,006 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:35:46,263 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:35:46,269 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:35:46,276 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 21:35:46,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:35:46 BoogieIcfgContainer [2023-08-31 21:35:46,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:35:46,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:35:46,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:35:46,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:35:46,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:35:45" (1/3) ... [2023-08-31 21:35:46,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e45d667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:35:46, skipping insertion in model container [2023-08-31 21:35:46,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:45" (2/3) ... [2023-08-31 21:35:46,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e45d667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:35:46, skipping insertion in model container [2023-08-31 21:35:46,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:35:46" (3/3) ... [2023-08-31 21:35:46,283 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2023-08-31 21:35:46,288 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:35:46,294 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:35:46,294 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2023-08-31 21:35:46,294 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:35:46,359 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-31 21:35:46,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 198 transitions, 420 flow [2023-08-31 21:35:46,470 INFO L130 PetriNetUnfolder]: 6/195 cut-off events. [2023-08-31 21:35:46,470 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:35:46,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 195 events. 6/195 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 107. Up to 2 conditions per place. [2023-08-31 21:35:46,475 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 198 transitions, 420 flow [2023-08-31 21:35:46,482 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 175 transitions, 368 flow [2023-08-31 21:35:46,485 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:35:46,500 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 175 transitions, 368 flow [2023-08-31 21:35:46,502 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 175 transitions, 368 flow [2023-08-31 21:35:46,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 175 transitions, 368 flow [2023-08-31 21:35:46,545 INFO L130 PetriNetUnfolder]: 4/175 cut-off events. [2023-08-31 21:35:46,545 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:35:46,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 175 events. 4/175 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 237 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-08-31 21:35:46,550 INFO L119 LiptonReduction]: Number of co-enabled transitions 6072 [2023-08-31 21:35:49,435 INFO L134 LiptonReduction]: Checked pairs total: 23394 [2023-08-31 21:35:49,435 INFO L136 LiptonReduction]: Total number of compositions: 157 [2023-08-31 21:35:49,444 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:35:49,448 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;@3738c3d2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:35:49,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-31 21:35:49,449 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:35:49,449 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:35:49,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:35:49,450 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:35:49,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 21:35:49,453 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:35:49,453 INFO L85 PathProgramCache]: Analyzing trace with hash 671, now seen corresponding path program 1 times [2023-08-31 21:35:49,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:35:49,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998499890] [2023-08-31 21:35:49,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:35:49,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:35:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:35:49,514 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 21:35:49,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:35:49,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998499890] [2023-08-31 21:35:49,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998499890] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:35:49,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:35:49,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:35:49,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369070408] [2023-08-31 21:35:49,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:35:49,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:35:49,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:35:49,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:35:49,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:35:49,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 355 [2023-08-31 21:35:49,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 136 flow. Second operand has 2 states, 2 states have (on average 189.5) internal successors, (379), 2 states have internal predecessors, (379), 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 21:35:49,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:35:49,540 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 355 [2023-08-31 21:35:49,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:35:49,650 INFO L130 PetriNetUnfolder]: 465/770 cut-off events. [2023-08-31 21:35:49,650 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2023-08-31 21:35:49,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1513 conditions, 770 events. 465/770 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4025 event pairs, 333 based on Foata normal form. 1/565 useless extension candidates. Maximal degree in co-relation 1255. Up to 676 conditions per place. [2023-08-31 21:35:49,656 INFO L137 encePairwiseOnDemand]: 343/355 looper letters, 23 selfloop transitions, 0 changer transitions 1/47 dead transitions. [2023-08-31 21:35:49,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 160 flow [2023-08-31 21:35:49,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:35:49,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:35:49,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 414 transitions. [2023-08-31 21:35:49,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5830985915492958 [2023-08-31 21:35:49,671 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 414 transitions. [2023-08-31 21:35:49,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 414 transitions. [2023-08-31 21:35:49,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:35:49,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 414 transitions. [2023-08-31 21:35:49,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 207.0) internal successors, (414), 2 states have internal predecessors, (414), 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 21:35:49,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 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 21:35:49,680 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 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 21:35:49,681 INFO L175 Difference]: Start difference. First operand has 66 places, 59 transitions, 136 flow. Second operand 2 states and 414 transitions. [2023-08-31 21:35:49,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 160 flow [2023-08-31 21:35:49,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 47 transitions, 148 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 21:35:49,687 INFO L231 Difference]: Finished difference. Result has 49 places, 46 transitions, 97 flow [2023-08-31 21:35:49,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=97, PETRI_PLACES=49, PETRI_TRANSITIONS=46} [2023-08-31 21:35:49,692 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -17 predicate places. [2023-08-31 21:35:49,692 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 46 transitions, 97 flow [2023-08-31 21:35:49,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 189.5) internal successors, (379), 2 states have internal predecessors, (379), 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 21:35:49,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:35:49,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-31 21:35:49,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:35:49,695 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 21:35:49,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:35:49,701 INFO L85 PathProgramCache]: Analyzing trace with hash 20679618, now seen corresponding path program 1 times [2023-08-31 21:35:49,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:35:49,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446785919] [2023-08-31 21:35:49,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:35:49,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:35:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:35:49,785 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 21:35:49,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:35:49,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446785919] [2023-08-31 21:35:49,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446785919] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:35:49,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:35:49,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:35:49,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909957245] [2023-08-31 21:35:49,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:35:49,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:35:49,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:35:49,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:35:49,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:35:49,797 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 355 [2023-08-31 21:35:49,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 46 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 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 21:35:49,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:35:49,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 355 [2023-08-31 21:35:49,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:35:49,944 INFO L130 PetriNetUnfolder]: 981/1727 cut-off events. [2023-08-31 21:35:49,945 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-31 21:35:49,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3183 conditions, 1727 events. 981/1727 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 10738 event pairs, 243 based on Foata normal form. 0/1476 useless extension candidates. Maximal degree in co-relation 3180. Up to 1392 conditions per place. [2023-08-31 21:35:49,951 INFO L137 encePairwiseOnDemand]: 351/355 looper letters, 36 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2023-08-31 21:35:49,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 55 transitions, 193 flow [2023-08-31 21:35:49,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:35:49,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:35:49,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 586 transitions. [2023-08-31 21:35:49,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5502347417840375 [2023-08-31 21:35:49,953 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 586 transitions. [2023-08-31 21:35:49,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 586 transitions. [2023-08-31 21:35:49,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:35:49,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 586 transitions. [2023-08-31 21:35:49,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 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 21:35:49,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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 21:35:49,958 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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 21:35:49,958 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 97 flow. Second operand 3 states and 586 transitions. [2023-08-31 21:35:49,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 55 transitions, 193 flow [2023-08-31 21:35:49,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 55 transitions, 193 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:35:49,960 INFO L231 Difference]: Finished difference. Result has 49 places, 46 transitions, 107 flow [2023-08-31 21:35:49,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=49, PETRI_TRANSITIONS=46} [2023-08-31 21:35:49,961 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -17 predicate places. [2023-08-31 21:35:49,961 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 46 transitions, 107 flow [2023-08-31 21:35:49,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 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 21:35:49,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:35:49,962 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 21:35:49,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:35:49,962 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 21:35:49,964 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:35:49,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1601709212, now seen corresponding path program 1 times [2023-08-31 21:35:49,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:35:49,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573750546] [2023-08-31 21:35:49,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:35:49,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:35:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:35:50,011 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 21:35:50,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:35:50,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573750546] [2023-08-31 21:35:50,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573750546] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:35:50,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:35:50,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:35:50,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395441283] [2023-08-31 21:35:50,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:35:50,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:35:50,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:35:50,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:35:50,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:35:50,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 355 [2023-08-31 21:35:50,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 46 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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 21:35:50,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:35:50,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 355 [2023-08-31 21:35:50,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:35:50,139 INFO L130 PetriNetUnfolder]: 1012/1713 cut-off events. [2023-08-31 21:35:50,139 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-31 21:35:50,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3219 conditions, 1713 events. 1012/1713 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 10160 event pairs, 228 based on Foata normal form. 0/1458 useless extension candidates. Maximal degree in co-relation 3215. Up to 1405 conditions per place. [2023-08-31 21:35:50,145 INFO L137 encePairwiseOnDemand]: 350/355 looper letters, 36 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2023-08-31 21:35:50,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 54 transitions, 201 flow [2023-08-31 21:35:50,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:35:50,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:35:50,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 578 transitions. [2023-08-31 21:35:50,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5427230046948357 [2023-08-31 21:35:50,147 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 578 transitions. [2023-08-31 21:35:50,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 578 transitions. [2023-08-31 21:35:50,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:35:50,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 578 transitions. [2023-08-31 21:35:50,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 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 21:35:50,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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 21:35:50,150 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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 21:35:50,150 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 107 flow. Second operand 3 states and 578 transitions. [2023-08-31 21:35:50,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 54 transitions, 201 flow [2023-08-31 21:35:50,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 54 transitions, 201 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:35:50,151 INFO L231 Difference]: Finished difference. Result has 49 places, 45 transitions, 115 flow [2023-08-31 21:35:50,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=49, PETRI_TRANSITIONS=45} [2023-08-31 21:35:50,152 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -17 predicate places. [2023-08-31 21:35:50,152 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 45 transitions, 115 flow [2023-08-31 21:35:50,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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 21:35:50,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:35:50,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:35:50,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:35:50,153 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 21:35:50,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:35:50,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1886628178, now seen corresponding path program 1 times [2023-08-31 21:35:50,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:35:50,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597249140] [2023-08-31 21:35:50,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:35:50,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:35:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:35:50,188 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 21:35:50,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:35:50,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597249140] [2023-08-31 21:35:50,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597249140] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:35:50,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:35:50,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:35:50,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627455523] [2023-08-31 21:35:50,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:35:50,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:35:50,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:35:50,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:35:50,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:35:50,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 355 [2023-08-31 21:35:50,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 45 transitions, 115 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 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 21:35:50,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:35:50,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 355 [2023-08-31 21:35:50,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:35:50,288 INFO L130 PetriNetUnfolder]: 565/944 cut-off events. [2023-08-31 21:35:50,288 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-31 21:35:50,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1829 conditions, 944 events. 565/944 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 5163 event pairs, 319 based on Foata normal form. 0/703 useless extension candidates. Maximal degree in co-relation 1824. Up to 643 conditions per place. [2023-08-31 21:35:50,292 INFO L137 encePairwiseOnDemand]: 351/355 looper letters, 33 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2023-08-31 21:35:50,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 57 transitions, 213 flow [2023-08-31 21:35:50,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:35:50,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:35:50,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 586 transitions. [2023-08-31 21:35:50,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5502347417840375 [2023-08-31 21:35:50,294 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 586 transitions. [2023-08-31 21:35:50,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 586 transitions. [2023-08-31 21:35:50,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:35:50,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 586 transitions. [2023-08-31 21:35:50,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 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 21:35:50,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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 21:35:50,297 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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 21:35:50,297 INFO L175 Difference]: Start difference. First operand has 49 places, 45 transitions, 115 flow. Second operand 3 states and 586 transitions. [2023-08-31 21:35:50,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 57 transitions, 213 flow [2023-08-31 21:35:50,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 57 transitions, 213 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:35:50,299 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 119 flow [2023-08-31 21:35:50,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2023-08-31 21:35:50,299 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -16 predicate places. [2023-08-31 21:35:50,299 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 119 flow [2023-08-31 21:35:50,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 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 21:35:50,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:35:50,300 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:35:50,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:35:50,300 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 21:35:50,300 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:35:50,300 INFO L85 PathProgramCache]: Analyzing trace with hash -238657086, now seen corresponding path program 1 times [2023-08-31 21:35:50,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:35:50,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974932838] [2023-08-31 21:35:50,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:35:50,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:35:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:35:50,322 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 21:35:50,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:35:50,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974932838] [2023-08-31 21:35:50,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974932838] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:35:50,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:35:50,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:35:50,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816448248] [2023-08-31 21:35:50,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:35:50,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:35:50,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:35:50,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:35:50,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:35:50,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 355 [2023-08-31 21:35:50,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 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 21:35:50,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:35:50,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 355 [2023-08-31 21:35:50,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:35:50,461 INFO L130 PetriNetUnfolder]: 1199/1805 cut-off events. [2023-08-31 21:35:50,461 INFO L131 PetriNetUnfolder]: For 297/297 co-relation queries the response was YES. [2023-08-31 21:35:50,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3875 conditions, 1805 events. 1199/1805 cut-off events. For 297/297 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 8270 event pairs, 305 based on Foata normal form. 0/1589 useless extension candidates. Maximal degree in co-relation 3869. Up to 1708 conditions per place. [2023-08-31 21:35:50,467 INFO L137 encePairwiseOnDemand]: 349/355 looper letters, 34 selfloop transitions, 2 changer transitions 2/51 dead transitions. [2023-08-31 21:35:50,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 51 transitions, 217 flow [2023-08-31 21:35:50,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:35:50,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:35:50,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 570 transitions. [2023-08-31 21:35:50,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5352112676056338 [2023-08-31 21:35:50,469 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 570 transitions. [2023-08-31 21:35:50,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 570 transitions. [2023-08-31 21:35:50,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:35:50,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 570 transitions. [2023-08-31 21:35:50,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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 21:35:50,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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 21:35:50,472 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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 21:35:50,472 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 119 flow. Second operand 3 states and 570 transitions. [2023-08-31 21:35:50,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 51 transitions, 217 flow [2023-08-31 21:35:50,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 51 transitions, 205 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:35:50,475 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 114 flow [2023-08-31 21:35:50,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2023-08-31 21:35:50,476 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -19 predicate places. [2023-08-31 21:35:50,476 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 114 flow [2023-08-31 21:35:50,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 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 21:35:50,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:35:50,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:35:50,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:35:50,477 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 21:35:50,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:35:50,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1191570495, now seen corresponding path program 1 times [2023-08-31 21:35:50,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:35:50,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601437037] [2023-08-31 21:35:50,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:35:50,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:35:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:35:50,502 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 21:35:50,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:35:50,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601437037] [2023-08-31 21:35:50,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601437037] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:35:50,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:35:50,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:35:50,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659863927] [2023-08-31 21:35:50,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:35:50,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:35:50,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:35:50,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:35:50,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:35:50,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 355 [2023-08-31 21:35:50,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 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 21:35:50,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:35:50,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 355 [2023-08-31 21:35:50,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:35:50,588 INFO L130 PetriNetUnfolder]: 624/1007 cut-off events. [2023-08-31 21:35:50,588 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-31 21:35:50,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2017 conditions, 1007 events. 624/1007 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4941 event pairs, 322 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 2011. Up to 648 conditions per place. [2023-08-31 21:35:50,591 INFO L137 encePairwiseOnDemand]: 351/355 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2023-08-31 21:35:50,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 52 transitions, 208 flow [2023-08-31 21:35:50,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:35:50,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:35:50,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 581 transitions. [2023-08-31 21:35:50,592 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5455399061032864 [2023-08-31 21:35:50,592 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 581 transitions. [2023-08-31 21:35:50,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 581 transitions. [2023-08-31 21:35:50,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:35:50,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 581 transitions. [2023-08-31 21:35:50,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 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 21:35:50,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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 21:35:50,596 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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 21:35:50,596 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 114 flow. Second operand 3 states and 581 transitions. [2023-08-31 21:35:50,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 52 transitions, 208 flow [2023-08-31 21:35:50,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 52 transitions, 208 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:35:50,597 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-08-31 21:35:50,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2023-08-31 21:35:50,599 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -20 predicate places. [2023-08-31 21:35:50,599 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-08-31 21:35:50,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 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 21:35:50,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2023-08-31 21:35:50,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2023-08-31 21:35:50,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2023-08-31 21:35:50,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2023-08-31 21:35:50,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2023-08-31 21:35:50,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2023-08-31 21:35:50,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2023-08-31 21:35:50,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2023-08-31 21:35:50,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2023-08-31 21:35:50,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2023-08-31 21:35:50,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2023-08-31 21:35:50,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2023-08-31 21:35:50,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2023-08-31 21:35:50,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2023-08-31 21:35:50,607 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2023-08-31 21:35:50,607 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2023-08-31 21:35:50,607 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2023-08-31 21:35:50,607 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2023-08-31 21:35:50,607 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2023-08-31 21:35:50,607 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2023-08-31 21:35:50,607 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2023-08-31 21:35:50,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2023-08-31 21:35:50,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2023-08-31 21:35:50,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 38 remaining) [2023-08-31 21:35:50,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2023-08-31 21:35:50,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 38 remaining) [2023-08-31 21:35:50,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2023-08-31 21:35:50,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2023-08-31 21:35:50,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2023-08-31 21:35:50,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2023-08-31 21:35:50,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2023-08-31 21:35:50,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2023-08-31 21:35:50,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2023-08-31 21:35:50,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2023-08-31 21:35:50,612 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2023-08-31 21:35:50,612 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2023-08-31 21:35:50,612 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2023-08-31 21:35:50,612 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2023-08-31 21:35:50,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 21:35:50,612 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-31 21:35:50,617 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:35:50,617 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:35:50,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:35:50 BasicIcfg [2023-08-31 21:35:50,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:35:50,622 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:35:50,622 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:35:50,622 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:35:50,622 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:35:46" (3/4) ... [2023-08-31 21:35:50,624 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:35:50,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:35:50,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:35:50,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-31 21:35:50,646 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-31 21:35:50,646 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:35:50,647 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:35:50,647 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:35:50,706 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:35:50,706 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:35:50,706 INFO L158 Benchmark]: Toolchain (without parser) took 5157.27ms. Allocated memory was 73.4MB in the beginning and 159.4MB in the end (delta: 86.0MB). Free memory was 44.2MB in the beginning and 131.4MB in the end (delta: -87.1MB). Peak memory consumption was 89.5MB. Max. memory is 16.1GB. [2023-08-31 21:35:50,706 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 73.4MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:35:50,706 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.13ms. Allocated memory is still 73.4MB. Free memory was 44.0MB in the beginning and 52.5MB in the end (delta: -8.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-31 21:35:50,706 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.04ms. Allocated memory is still 73.4MB. Free memory was 52.5MB in the beginning and 50.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:35:50,707 INFO L158 Benchmark]: Boogie Preprocessor took 42.52ms. Allocated memory is still 73.4MB. Free memory was 50.5MB in the beginning and 48.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:35:50,707 INFO L158 Benchmark]: RCFGBuilder took 465.96ms. Allocated memory was 73.4MB in the beginning and 109.1MB in the end (delta: 35.7MB). Free memory was 48.8MB in the beginning and 84.9MB in the end (delta: -36.1MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2023-08-31 21:35:50,707 INFO L158 Benchmark]: TraceAbstraction took 4341.84ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 84.3MB in the beginning and 42.6MB in the end (delta: 41.7MB). Peak memory consumption was 92.8MB. Max. memory is 16.1GB. [2023-08-31 21:35:50,707 INFO L158 Benchmark]: Witness Printer took 84.11ms. Allocated memory is still 159.4MB. Free memory was 42.6MB in the beginning and 131.4MB in the end (delta: -88.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:35:50,708 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 73.4MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.13ms. Allocated memory is still 73.4MB. Free memory was 44.0MB in the beginning and 52.5MB in the end (delta: -8.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.04ms. Allocated memory is still 73.4MB. Free memory was 52.5MB in the beginning and 50.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.52ms. Allocated memory is still 73.4MB. Free memory was 50.5MB in the beginning and 48.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 465.96ms. Allocated memory was 73.4MB in the beginning and 109.1MB in the end (delta: 35.7MB). Free memory was 48.8MB in the beginning and 84.9MB in the end (delta: -36.1MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4341.84ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 84.3MB in the beginning and 42.6MB in the end (delta: 41.7MB). Peak memory consumption was 92.8MB. Max. memory is 16.1GB. * Witness Printer took 84.11ms. Allocated memory is still 159.4MB. Free memory was 42.6MB in the beginning and 131.4MB in the end (delta: -88.8MB). 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: 2.9s, 181 PlacesBefore, 66 PlacesAfterwards, 175 TransitionsBefore, 59 TransitionsAfterwards, 6072 CoEnabledTransitionPairs, 8 FixpointIterations, 81 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 157 TotalNumberOfCompositions, 23394 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11471, independent: 10992, independent conditional: 0, independent unconditional: 10992, dependent: 479, dependent conditional: 0, dependent unconditional: 479, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3475, independent: 3432, independent conditional: 0, independent unconditional: 3432, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11471, independent: 7560, independent conditional: 0, independent unconditional: 7560, dependent: 436, dependent conditional: 0, dependent unconditional: 436, unknown: 3475, unknown conditional: 0, unknown unconditional: 3475] , Statistics on independence cache: Total cache size (in pairs): 510, Positive cache size: 481, Positive conditional cache size: 0, Positive unconditional cache size: 481, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: 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 7 procedures, 262 locations, 38 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: 4.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 174 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 320 IncrementalHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 23 mSDtfsCounter, 320 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 0.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 23 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:35:50,724 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