./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79f59481c49375d27b8409383d6d600e90e5ee29536655deda4d0ae0ca7faefc --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 09:32:42,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 09:32:42,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 09:32:42,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 09:32:42,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 09:32:42,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 09:32:42,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 09:32:42,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 09:32:42,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 09:32:42,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 09:32:42,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 09:32:42,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 09:32:42,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 09:32:42,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 09:32:42,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 09:32:42,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 09:32:42,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 09:32:42,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 09:32:42,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 09:32:42,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 09:32:42,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 09:32:42,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 09:32:42,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 09:32:42,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 09:32:42,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 09:32:42,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 09:32:42,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 09:32:42,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 09:32:42,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 09:32:42,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 09:32:42,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 09:32:42,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 09:32:42,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 09:32:42,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 09:32:42,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 09:32:42,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 09:32:42,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 09:32:42,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 09:32:42,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 09:32:42,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 09:32:42,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 09:32:42,355 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 09:32:42,395 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 09:32:42,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 09:32:42,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 09:32:42,397 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 09:32:42,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 09:32:42,398 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 09:32:42,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 09:32:42,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 09:32:42,399 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 09:32:42,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 09:32:42,400 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 09:32:42,400 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 09:32:42,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 09:32:42,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 09:32:42,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 09:32:42,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 09:32:42,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 09:32:42,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 09:32:42,401 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 09:32:42,401 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 09:32:42,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 09:32:42,402 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 09:32:42,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 09:32:42,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 09:32:42,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 09:32:42,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 09:32:42,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:32:42,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 09:32:42,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 09:32:42,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 09:32:42,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 09:32:42,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 09:32:42,404 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 09:32:42,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 09:32:42,404 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 09:32:42,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 09:32:42,404 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 09:32:42,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79f59481c49375d27b8409383d6d600e90e5ee29536655deda4d0ae0ca7faefc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 09:32:42,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 09:32:42,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 09:32:42,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 09:32:42,759 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 09:32:42,759 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 09:32:42,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i [2023-08-29 09:32:43,925 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 09:32:44,155 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 09:32:44,156 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i [2023-08-29 09:32:44,180 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f7ba8742/67c22ce8637846c2b58c6747db0a0de7/FLAGc09f82951 [2023-08-29 09:32:44,202 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f7ba8742/67c22ce8637846c2b58c6747db0a0de7 [2023-08-29 09:32:44,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 09:32:44,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 09:32:44,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 09:32:44,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 09:32:44,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 09:32:44,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:32:44" (1/1) ... [2023-08-29 09:32:44,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18e52b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:32:44, skipping insertion in model container [2023-08-29 09:32:44,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:32:44" (1/1) ... [2023-08-29 09:32:44,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 09:32:44,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 09:32:44,544 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2023-08-29 09:32:44,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:32:44,566 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 09:32:44,618 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2023-08-29 09:32:44,624 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:32:44,666 INFO L208 MainTranslator]: Completed translation [2023-08-29 09:32:44,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:32:44 WrapperNode [2023-08-29 09:32:44,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 09:32:44,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 09:32:44,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 09:32:44,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 09:32:44,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:32:44" (1/1) ... [2023-08-29 09:32:44,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:32:44" (1/1) ... [2023-08-29 09:32:44,765 INFO L138 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 320 [2023-08-29 09:32:44,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 09:32:44,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 09:32:44,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 09:32:44,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 09:32:44,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:32:44" (1/1) ... [2023-08-29 09:32:44,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:32:44" (1/1) ... [2023-08-29 09:32:44,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:32:44" (1/1) ... [2023-08-29 09:32:44,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:32:44" (1/1) ... [2023-08-29 09:32:44,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:32:44" (1/1) ... [2023-08-29 09:32:44,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:32:44" (1/1) ... [2023-08-29 09:32:44,835 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:32:44" (1/1) ... [2023-08-29 09:32:44,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:32:44" (1/1) ... [2023-08-29 09:32:44,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 09:32:44,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 09:32:44,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 09:32:44,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 09:32:44,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:32:44" (1/1) ... [2023-08-29 09:32:44,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:32:44,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 09:32:44,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 09:32:44,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 09:32:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 09:32:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-29 09:32:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-29 09:32:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 09:32:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 09:32:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 09:32:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 09:32:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 09:32:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 09:32:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 09:32:44,915 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 09:32:45,031 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 09:32:45,033 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 09:32:45,656 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 09:32:45,918 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 09:32:45,918 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-29 09:32:45,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:32:45 BoogieIcfgContainer [2023-08-29 09:32:45,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 09:32:45,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 09:32:45,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 09:32:45,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 09:32:45,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:32:44" (1/3) ... [2023-08-29 09:32:45,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@895b8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:32:45, skipping insertion in model container [2023-08-29 09:32:45,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:32:44" (2/3) ... [2023-08-29 09:32:45,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@895b8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:32:45, skipping insertion in model container [2023-08-29 09:32:45,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:32:45" (3/3) ... [2023-08-29 09:32:45,928 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longest-2.i [2023-08-29 09:32:45,936 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 09:32:45,945 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 09:32:45,945 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2023-08-29 09:32:45,945 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 09:32:46,061 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 09:32:46,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 181 transitions, 367 flow [2023-08-29 09:32:46,202 INFO L130 PetriNetUnfolder]: 11/191 cut-off events. [2023-08-29 09:32:46,202 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:32:46,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 191 events. 11/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 243 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 157. Up to 4 conditions per place. [2023-08-29 09:32:46,211 INFO L82 GeneralOperation]: Start removeDead. Operand has 174 places, 181 transitions, 367 flow [2023-08-29 09:32:46,219 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 181 transitions, 367 flow [2023-08-29 09:32:46,223 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:32:46,244 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 181 transitions, 367 flow [2023-08-29 09:32:46,246 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 181 transitions, 367 flow [2023-08-29 09:32:46,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 181 transitions, 367 flow [2023-08-29 09:32:46,311 INFO L130 PetriNetUnfolder]: 11/191 cut-off events. [2023-08-29 09:32:46,311 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:32:46,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 191 events. 11/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 243 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 157. Up to 4 conditions per place. [2023-08-29 09:32:46,323 INFO L119 LiptonReduction]: Number of co-enabled transitions 3770 [2023-08-29 09:32:52,806 INFO L134 LiptonReduction]: Checked pairs total: 4399 [2023-08-29 09:32:52,806 INFO L136 LiptonReduction]: Total number of compositions: 195 [2023-08-29 09:32:52,819 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:32:52,825 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;@39298a53, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:32:52,825 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2023-08-29 09:32:52,828 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2023-08-29 09:32:52,828 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:32:52,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:32:52,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 09:32:52,830 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-29 09:32:52,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:32:52,835 INFO L85 PathProgramCache]: Analyzing trace with hash 37704300, now seen corresponding path program 1 times [2023-08-29 09:32:52,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:32:52,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270105674] [2023-08-29 09:32:52,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:32:52,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:32:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:32:53,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:32:53,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:32:53,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270105674] [2023-08-29 09:32:53,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270105674] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:32:53,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:32:53,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 09:32:53,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313341587] [2023-08-29 09:32:53,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:32:53,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:32:53,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:32:53,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:32:53,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:32:53,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 376 [2023-08-29 09:32:53,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 53 transitions, 111 flow. Second operand has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:32:53,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:32:53,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 376 [2023-08-29 09:32:53,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:32:53,192 INFO L130 PetriNetUnfolder]: 43/91 cut-off events. [2023-08-29 09:32:53,193 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:32:53,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 91 events. 43/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 178 event pairs, 28 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 174. Up to 91 conditions per place. [2023-08-29 09:32:53,194 INFO L137 encePairwiseOnDemand]: 347/376 looper letters, 23 selfloop transitions, 0 changer transitions 0/24 dead transitions. [2023-08-29 09:32:53,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 24 transitions, 99 flow [2023-08-29 09:32:53,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:32:53,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:32:53,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 356 transitions. [2023-08-29 09:32:53,210 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4734042553191489 [2023-08-29 09:32:53,211 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 356 transitions. [2023-08-29 09:32:53,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 356 transitions. [2023-08-29 09:32:53,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:32:53,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 356 transitions. [2023-08-29 09:32:53,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 178.0) internal successors, (356), 2 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:32:53,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 376.0) internal successors, (1128), 3 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:32:53,223 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 376.0) internal successors, (1128), 3 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:32:53,224 INFO L175 Difference]: Start difference. First operand has 49 places, 53 transitions, 111 flow. Second operand 2 states and 356 transitions. [2023-08-29 09:32:53,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 24 transitions, 99 flow [2023-08-29 09:32:53,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 24 transitions, 99 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:32:53,228 INFO L231 Difference]: Finished difference. Result has 23 places, 24 transitions, 53 flow [2023-08-29 09:32:53,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=53, PETRI_PLACES=23, PETRI_TRANSITIONS=24} [2023-08-29 09:32:53,234 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -26 predicate places. [2023-08-29 09:32:53,235 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 24 transitions, 53 flow [2023-08-29 09:32:53,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:32:53,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:32:53,236 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-29 09:32:53,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 09:32:53,236 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-29 09:32:53,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:32:53,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1874194445, now seen corresponding path program 1 times [2023-08-29 09:32:53,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:32:53,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606835840] [2023-08-29 09:32:53,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:32:53,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:32:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:32:53,284 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 09:32:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:32:53,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 09:32:53,317 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 09:32:53,318 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2023-08-29 09:32:53,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2023-08-29 09:32:53,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2023-08-29 09:32:53,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2023-08-29 09:32:53,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2023-08-29 09:32:53,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2023-08-29 09:32:53,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2023-08-29 09:32:53,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2023-08-29 09:32:53,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2023-08-29 09:32:53,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2023-08-29 09:32:53,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2023-08-29 09:32:53,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2023-08-29 09:32:53,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2023-08-29 09:32:53,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2023-08-29 09:32:53,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2023-08-29 09:32:53,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2023-08-29 09:32:53,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2023-08-29 09:32:53,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2023-08-29 09:32:53,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2023-08-29 09:32:53,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2023-08-29 09:32:53,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2023-08-29 09:32:53,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2023-08-29 09:32:53,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2023-08-29 09:32:53,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2023-08-29 09:32:53,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2023-08-29 09:32:53,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2023-08-29 09:32:53,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2023-08-29 09:32:53,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2023-08-29 09:32:53,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2023-08-29 09:32:53,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2023-08-29 09:32:53,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2023-08-29 09:32:53,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2023-08-29 09:32:53,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2023-08-29 09:32:53,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2023-08-29 09:32:53,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2023-08-29 09:32:53,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2023-08-29 09:32:53,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2023-08-29 09:32:53,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2023-08-29 09:32:53,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2023-08-29 09:32:53,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2023-08-29 09:32:53,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2023-08-29 09:32:53,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2023-08-29 09:32:53,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2023-08-29 09:32:53,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2023-08-29 09:32:53,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2023-08-29 09:32:53,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2023-08-29 09:32:53,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2023-08-29 09:32:53,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2023-08-29 09:32:53,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2023-08-29 09:32:53,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2023-08-29 09:32:53,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2023-08-29 09:32:53,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2023-08-29 09:32:53,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2023-08-29 09:32:53,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 09:32:53,332 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-29 09:32:53,335 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 09:32:53,335 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-29 09:32:53,490 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 09:32:53,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 313 places, 327 transitions, 666 flow [2023-08-29 09:32:53,577 INFO L130 PetriNetUnfolder]: 21/349 cut-off events. [2023-08-29 09:32:53,578 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 09:32:53,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 349 events. 21/349 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 949 event pairs, 0 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 302. Up to 6 conditions per place. [2023-08-29 09:32:53,584 INFO L82 GeneralOperation]: Start removeDead. Operand has 313 places, 327 transitions, 666 flow [2023-08-29 09:32:53,591 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 313 places, 327 transitions, 666 flow [2023-08-29 09:32:53,592 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:32:53,592 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 313 places, 327 transitions, 666 flow [2023-08-29 09:32:53,593 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 313 places, 327 transitions, 666 flow [2023-08-29 09:32:53,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 313 places, 327 transitions, 666 flow [2023-08-29 09:32:53,674 INFO L130 PetriNetUnfolder]: 21/349 cut-off events. [2023-08-29 09:32:53,674 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 09:32:53,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 349 events. 21/349 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 949 event pairs, 0 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 302. Up to 6 conditions per place. [2023-08-29 09:32:53,701 INFO L119 LiptonReduction]: Number of co-enabled transitions 49880 [2023-08-29 09:33:00,074 INFO L134 LiptonReduction]: Checked pairs total: 221986 [2023-08-29 09:33:00,075 INFO L136 LiptonReduction]: Total number of compositions: 189 [2023-08-29 09:33:00,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:33:00,079 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;@39298a53, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:33:00,079 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2023-08-29 09:33:00,081 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-08-29 09:33:00,081 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:33:00,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:33:00,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 09:33:00,082 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 09:33:00,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:33:00,082 INFO L85 PathProgramCache]: Analyzing trace with hash 58160430, now seen corresponding path program 1 times [2023-08-29 09:33:00,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:33:00,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627251794] [2023-08-29 09:33:00,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:33:00,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:33:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:33:00,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:33:00,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:33:00,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627251794] [2023-08-29 09:33:00,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627251794] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:33:00,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:33:00,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 09:33:00,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919316423] [2023-08-29 09:33:00,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:33:00,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:33:00,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:33:00,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:33:00,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:33:00,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 516 [2023-08-29 09:33:00,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 179 transitions, 370 flow. Second operand has 2 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:00,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:33:00,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 516 [2023-08-29 09:33:00,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:33:00,900 INFO L130 PetriNetUnfolder]: 2251/5721 cut-off events. [2023-08-29 09:33:00,900 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-08-29 09:33:00,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9313 conditions, 5721 events. 2251/5721 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 48823 event pairs, 1751 based on Foata normal form. 0/5000 useless extension candidates. Maximal degree in co-relation 6404. Up to 3504 conditions per place. [2023-08-29 09:33:00,933 INFO L137 encePairwiseOnDemand]: 481/516 looper letters, 61 selfloop transitions, 0 changer transitions 0/144 dead transitions. [2023-08-29 09:33:00,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 144 transitions, 422 flow [2023-08-29 09:33:00,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:33:00,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:33:00,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 638 transitions. [2023-08-29 09:33:00,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6182170542635659 [2023-08-29 09:33:00,938 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 638 transitions. [2023-08-29 09:33:00,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 638 transitions. [2023-08-29 09:33:00,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:33:00,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 638 transitions. [2023-08-29 09:33:00,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 319.0) internal successors, (638), 2 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:00,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 516.0) internal successors, (1548), 3 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:00,946 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 516.0) internal successors, (1548), 3 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:00,947 INFO L175 Difference]: Start difference. First operand has 170 places, 179 transitions, 370 flow. Second operand 2 states and 638 transitions. [2023-08-29 09:33:00,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 144 transitions, 422 flow [2023-08-29 09:33:00,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 144 transitions, 420 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-29 09:33:00,951 INFO L231 Difference]: Finished difference. Result has 140 places, 144 transitions, 298 flow [2023-08-29 09:33:00,951 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=516, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=298, PETRI_PLACES=140, PETRI_TRANSITIONS=144} [2023-08-29 09:33:00,952 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -30 predicate places. [2023-08-29 09:33:00,952 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 144 transitions, 298 flow [2023-08-29 09:33:00,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:00,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:33:00,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 09:33:00,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 09:33:00,953 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 09:33:00,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:33:00,954 INFO L85 PathProgramCache]: Analyzing trace with hash 57645389, now seen corresponding path program 1 times [2023-08-29 09:33:00,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:33:00,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825681964] [2023-08-29 09:33:00,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:33:00,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:33:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:33:01,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:33:01,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:33:01,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825681964] [2023-08-29 09:33:01,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825681964] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:33:01,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:33:01,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:33:01,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253596] [2023-08-29 09:33:01,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:33:01,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:33:01,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:33:01,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:33:01,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:33:01,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 516 [2023-08-29 09:33:01,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 144 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:01,076 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:33:01,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 516 [2023-08-29 09:33:01,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:33:02,630 INFO L130 PetriNetUnfolder]: 5230/12886 cut-off events. [2023-08-29 09:33:02,630 INFO L131 PetriNetUnfolder]: For 133/133 co-relation queries the response was YES. [2023-08-29 09:33:02,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21208 conditions, 12886 events. 5230/12886 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 123280 event pairs, 2002 based on Foata normal form. 0/11262 useless extension candidates. Maximal degree in co-relation 21203. Up to 4188 conditions per place. [2023-08-29 09:33:02,702 INFO L137 encePairwiseOnDemand]: 508/516 looper letters, 126 selfloop transitions, 6 changer transitions 0/208 dead transitions. [2023-08-29 09:33:02,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 208 transitions, 695 flow [2023-08-29 09:33:02,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:33:02,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:33:02,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 923 transitions. [2023-08-29 09:33:02,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5962532299741602 [2023-08-29 09:33:02,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 923 transitions. [2023-08-29 09:33:02,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 923 transitions. [2023-08-29 09:33:02,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:33:02,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 923 transitions. [2023-08-29 09:33:02,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 307.6666666666667) internal successors, (923), 3 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:02,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 516.0) internal successors, (2064), 4 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:02,715 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 516.0) internal successors, (2064), 4 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:02,715 INFO L175 Difference]: Start difference. First operand has 140 places, 144 transitions, 298 flow. Second operand 3 states and 923 transitions. [2023-08-29 09:33:02,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 208 transitions, 695 flow [2023-08-29 09:33:02,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 208 transitions, 695 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:33:02,723 INFO L231 Difference]: Finished difference. Result has 144 places, 150 transitions, 350 flow [2023-08-29 09:33:02,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=516, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=144, PETRI_TRANSITIONS=150} [2023-08-29 09:33:02,726 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -26 predicate places. [2023-08-29 09:33:02,727 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 150 transitions, 350 flow [2023-08-29 09:33:02,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:02,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:33:02,728 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-29 09:33:02,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 09:33:02,729 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 09:33:02,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:33:02,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1770387562, now seen corresponding path program 1 times [2023-08-29 09:33:02,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:33:02,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349770178] [2023-08-29 09:33:02,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:33:02,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:33:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:33:02,767 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 09:33:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:33:02,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 09:33:02,793 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 09:33:02,793 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (78 of 79 remaining) [2023-08-29 09:33:02,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (77 of 79 remaining) [2023-08-29 09:33:02,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (76 of 79 remaining) [2023-08-29 09:33:02,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (75 of 79 remaining) [2023-08-29 09:33:02,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (74 of 79 remaining) [2023-08-29 09:33:02,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (73 of 79 remaining) [2023-08-29 09:33:02,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (72 of 79 remaining) [2023-08-29 09:33:02,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (71 of 79 remaining) [2023-08-29 09:33:02,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (70 of 79 remaining) [2023-08-29 09:33:02,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (69 of 79 remaining) [2023-08-29 09:33:02,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (68 of 79 remaining) [2023-08-29 09:33:02,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 79 remaining) [2023-08-29 09:33:02,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (66 of 79 remaining) [2023-08-29 09:33:02,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (65 of 79 remaining) [2023-08-29 09:33:02,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (64 of 79 remaining) [2023-08-29 09:33:02,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (63 of 79 remaining) [2023-08-29 09:33:02,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (62 of 79 remaining) [2023-08-29 09:33:02,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (61 of 79 remaining) [2023-08-29 09:33:02,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (60 of 79 remaining) [2023-08-29 09:33:02,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (59 of 79 remaining) [2023-08-29 09:33:02,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (58 of 79 remaining) [2023-08-29 09:33:02,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (57 of 79 remaining) [2023-08-29 09:33:02,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (56 of 79 remaining) [2023-08-29 09:33:02,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (55 of 79 remaining) [2023-08-29 09:33:02,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (54 of 79 remaining) [2023-08-29 09:33:02,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (53 of 79 remaining) [2023-08-29 09:33:02,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (52 of 79 remaining) [2023-08-29 09:33:02,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 79 remaining) [2023-08-29 09:33:02,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 79 remaining) [2023-08-29 09:33:02,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 79 remaining) [2023-08-29 09:33:02,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 79 remaining) [2023-08-29 09:33:02,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 79 remaining) [2023-08-29 09:33:02,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 79 remaining) [2023-08-29 09:33:02,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 79 remaining) [2023-08-29 09:33:02,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 79 remaining) [2023-08-29 09:33:02,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 79 remaining) [2023-08-29 09:33:02,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 79 remaining) [2023-08-29 09:33:02,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 79 remaining) [2023-08-29 09:33:02,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 79 remaining) [2023-08-29 09:33:02,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 79 remaining) [2023-08-29 09:33:02,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 79 remaining) [2023-08-29 09:33:02,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 79 remaining) [2023-08-29 09:33:02,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 79 remaining) [2023-08-29 09:33:02,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 79 remaining) [2023-08-29 09:33:02,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 79 remaining) [2023-08-29 09:33:02,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 79 remaining) [2023-08-29 09:33:02,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 79 remaining) [2023-08-29 09:33:02,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 79 remaining) [2023-08-29 09:33:02,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 79 remaining) [2023-08-29 09:33:02,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 79 remaining) [2023-08-29 09:33:02,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 79 remaining) [2023-08-29 09:33:02,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 79 remaining) [2023-08-29 09:33:02,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 79 remaining) [2023-08-29 09:33:02,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 79 remaining) [2023-08-29 09:33:02,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 79 remaining) [2023-08-29 09:33:02,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 79 remaining) [2023-08-29 09:33:02,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 79 remaining) [2023-08-29 09:33:02,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 79 remaining) [2023-08-29 09:33:02,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 79 remaining) [2023-08-29 09:33:02,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 79 remaining) [2023-08-29 09:33:02,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 79 remaining) [2023-08-29 09:33:02,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 79 remaining) [2023-08-29 09:33:02,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 79 remaining) [2023-08-29 09:33:02,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 79 remaining) [2023-08-29 09:33:02,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 79 remaining) [2023-08-29 09:33:02,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 79 remaining) [2023-08-29 09:33:02,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 79 remaining) [2023-08-29 09:33:02,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 79 remaining) [2023-08-29 09:33:02,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 79 remaining) [2023-08-29 09:33:02,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 79 remaining) [2023-08-29 09:33:02,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 79 remaining) [2023-08-29 09:33:02,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 79 remaining) [2023-08-29 09:33:02,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 79 remaining) [2023-08-29 09:33:02,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 79 remaining) [2023-08-29 09:33:02,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 79 remaining) [2023-08-29 09:33:02,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 79 remaining) [2023-08-29 09:33:02,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 79 remaining) [2023-08-29 09:33:02,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 79 remaining) [2023-08-29 09:33:02,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 79 remaining) [2023-08-29 09:33:02,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 09:33:02,819 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-29 09:33:02,820 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 09:33:02,820 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-29 09:33:02,903 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 09:33:02,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 452 places, 473 transitions, 967 flow [2023-08-29 09:33:02,996 INFO L130 PetriNetUnfolder]: 31/507 cut-off events. [2023-08-29 09:33:02,997 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 09:33:03,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 507 events. 31/507 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1855 event pairs, 0 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 447. Up to 8 conditions per place. [2023-08-29 09:33:03,010 INFO L82 GeneralOperation]: Start removeDead. Operand has 452 places, 473 transitions, 967 flow [2023-08-29 09:33:03,018 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 452 places, 473 transitions, 967 flow [2023-08-29 09:33:03,018 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:33:03,018 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 452 places, 473 transitions, 967 flow [2023-08-29 09:33:03,019 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 452 places, 473 transitions, 967 flow [2023-08-29 09:33:03,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 452 places, 473 transitions, 967 flow [2023-08-29 09:33:03,184 INFO L130 PetriNetUnfolder]: 31/507 cut-off events. [2023-08-29 09:33:03,185 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 09:33:03,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 507 events. 31/507 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1855 event pairs, 0 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 447. Up to 8 conditions per place. [2023-08-29 09:33:03,221 INFO L119 LiptonReduction]: Number of co-enabled transitions 138330 [2023-08-29 09:33:29,267 INFO L134 LiptonReduction]: Checked pairs total: 552886 [2023-08-29 09:33:29,268 INFO L136 LiptonReduction]: Total number of compositions: 281 [2023-08-29 09:33:29,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:33:29,270 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;@39298a53, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:33:29,270 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2023-08-29 09:33:29,272 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-29 09:33:29,272 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:33:29,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:33:29,272 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 09:33:29,273 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 09:33:29,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:33:29,273 INFO L85 PathProgramCache]: Analyzing trace with hash 85850640, now seen corresponding path program 1 times [2023-08-29 09:33:29,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:33:29,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127906724] [2023-08-29 09:33:29,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:33:29,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:33:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:33:29,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:33:29,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:33:29,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127906724] [2023-08-29 09:33:29,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127906724] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:33:29,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:33:29,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 09:33:29,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568091147] [2023-08-29 09:33:29,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:33:29,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:33:29,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:33:29,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:33:29,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:33:29,294 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 754 [2023-08-29 09:33:29,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 264 transitions, 549 flow. Second operand has 2 states, 2 states have (on average 392.0) internal successors, (784), 2 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:29,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:33:29,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 754 [2023-08-29 09:33:29,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:33:45,387 INFO L130 PetriNetUnfolder]: 99609/188887 cut-off events. [2023-08-29 09:33:45,387 INFO L131 PetriNetUnfolder]: For 3985/3985 co-relation queries the response was YES. [2023-08-29 09:33:45,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325060 conditions, 188887 events. 99609/188887 cut-off events. For 3985/3985 co-relation queries the response was YES. Maximal size of possible extension queue 4534. Compared 2137306 event pairs, 79849 based on Foata normal form. 0/162383 useless extension candidates. Maximal degree in co-relation 128832. Up to 133412 conditions per place. [2023-08-29 09:33:46,702 INFO L137 encePairwiseOnDemand]: 702/754 looper letters, 93 selfloop transitions, 0 changer transitions 0/212 dead transitions. [2023-08-29 09:33:46,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 212 transitions, 631 flow [2023-08-29 09:33:46,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:33:46,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:33:46,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 925 transitions. [2023-08-29 09:33:46,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.613395225464191 [2023-08-29 09:33:46,705 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 925 transitions. [2023-08-29 09:33:46,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 925 transitions. [2023-08-29 09:33:46,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:33:46,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 925 transitions. [2023-08-29 09:33:46,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 462.5) internal successors, (925), 2 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:46,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:46,712 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:46,712 INFO L175 Difference]: Start difference. First operand has 250 places, 264 transitions, 549 flow. Second operand 2 states and 925 transitions. [2023-08-29 09:33:46,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 212 transitions, 631 flow [2023-08-29 09:33:46,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 212 transitions, 625 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-29 09:33:46,725 INFO L231 Difference]: Finished difference. Result has 205 places, 212 transitions, 439 flow [2023-08-29 09:33:46,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=439, PETRI_PLACES=205, PETRI_TRANSITIONS=212} [2023-08-29 09:33:46,729 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, -45 predicate places. [2023-08-29 09:33:46,729 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 212 transitions, 439 flow [2023-08-29 09:33:46,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 392.0) internal successors, (784), 2 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:46,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:33:46,730 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 09:33:46,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 09:33:46,730 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 09:33:46,731 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:33:46,731 INFO L85 PathProgramCache]: Analyzing trace with hash 898157490, now seen corresponding path program 1 times [2023-08-29 09:33:46,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:33:46,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031213144] [2023-08-29 09:33:46,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:33:46,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:33:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:33:46,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:33:46,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:33:46,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031213144] [2023-08-29 09:33:46,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031213144] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:33:46,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:33:46,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:33:46,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412154950] [2023-08-29 09:33:46,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:33:46,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:33:46,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:33:46,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:33:46,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:33:46,787 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 754 [2023-08-29 09:33:46,789 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 212 transitions, 439 flow. Second operand has 3 states, 3 states have (on average 380.0) internal successors, (1140), 3 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:33:46,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:33:46,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 754 [2023-08-29 09:33:46,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:34:27,268 INFO L130 PetriNetUnfolder]: 262470/490531 cut-off events. [2023-08-29 09:34:27,268 INFO L131 PetriNetUnfolder]: For 4438/4438 co-relation queries the response was YES. [2023-08-29 09:34:28,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 849092 conditions, 490531 events. 262470/490531 cut-off events. For 4438/4438 co-relation queries the response was YES. Maximal size of possible extension queue 11092. Compared 6067889 event pairs, 103141 based on Foata normal form. 0/422182 useless extension candidates. Maximal degree in co-relation 849086. Up to 179851 conditions per place. [2023-08-29 09:34:30,643 INFO L137 encePairwiseOnDemand]: 742/754 looper letters, 190 selfloop transitions, 9 changer transitions 0/309 dead transitions. [2023-08-29 09:34:30,643 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 309 transitions, 1041 flow [2023-08-29 09:34:30,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:34:30,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:34:30,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1336 transitions. [2023-08-29 09:34:30,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5906277630415562 [2023-08-29 09:34:30,647 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1336 transitions. [2023-08-29 09:34:30,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1336 transitions. [2023-08-29 09:34:30,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:34:30,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1336 transitions. [2023-08-29 09:34:30,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 445.3333333333333) internal successors, (1336), 3 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:34:30,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:34:30,656 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:34:30,656 INFO L175 Difference]: Start difference. First operand has 205 places, 212 transitions, 439 flow. Second operand 3 states and 1336 transitions. [2023-08-29 09:34:30,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 309 transitions, 1041 flow [2023-08-29 09:34:30,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 309 transitions, 1041 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:34:30,663 INFO L231 Difference]: Finished difference. Result has 209 places, 221 transitions, 517 flow [2023-08-29 09:34:30,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=517, PETRI_PLACES=209, PETRI_TRANSITIONS=221} [2023-08-29 09:34:30,664 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, -41 predicate places. [2023-08-29 09:34:30,664 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 221 transitions, 517 flow [2023-08-29 09:34:30,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 380.0) internal successors, (1140), 3 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:34:30,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:34:30,665 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:34:30,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 09:34:30,665 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 09:34:30,666 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:34:30,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1680471563, now seen corresponding path program 1 times [2023-08-29 09:34:30,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:34:30,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032447454] [2023-08-29 09:34:30,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:34:30,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:34:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:34:30,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:34:30,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:34:30,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032447454] [2023-08-29 09:34:30,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032447454] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:34:30,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:34:30,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 09:34:30,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137742746] [2023-08-29 09:34:30,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:34:30,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 09:34:30,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:34:30,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 09:34:30,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 09:34:31,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 754 [2023-08-29 09:34:31,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 221 transitions, 517 flow. Second operand has 6 states, 6 states have (on average 344.8333333333333) internal successors, (2069), 6 states have internal predecessors, (2069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:34:31,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:34:31,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 754 [2023-08-29 09:34:31,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:36:45,132 INFO L130 PetriNetUnfolder]: 807283/1248279 cut-off events. [2023-08-29 09:36:45,132 INFO L131 PetriNetUnfolder]: For 48593/48593 co-relation queries the response was YES.