./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.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/ldv-races/race-2_4-container_of.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 da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da --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 16:33:53,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 16:33:53,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 16:33:53,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 16:33:53,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 16:33:53,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 16:33:53,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 16:33:53,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 16:33:53,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 16:33:53,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 16:33:53,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 16:33:53,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 16:33:53,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 16:33:53,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 16:33:53,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 16:33:53,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 16:33:53,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 16:33:53,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 16:33:53,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 16:33:53,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 16:33:53,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 16:33:53,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 16:33:53,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 16:33:53,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 16:33:53,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 16:33:53,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 16:33:53,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 16:33:53,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 16:33:53,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 16:33:53,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 16:33:53,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 16:33:53,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 16:33:53,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 16:33:53,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 16:33:53,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 16:33:53,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 16:33:53,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 16:33:53,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 16:33:53,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 16:33:53,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 16:33:53,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 16:33:53,953 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 16:33:53,987 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 16:33:53,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 16:33:53,988 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 16:33:53,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 16:33:53,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 16:33:53,989 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 16:33:53,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 16:33:53,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 16:33:53,990 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 16:33:53,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 16:33:53,991 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 16:33:53,991 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 16:33:53,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 16:33:53,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 16:33:53,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 16:33:53,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 16:33:53,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 16:33:53,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 16:33:53,993 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 16:33:53,993 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 16:33:53,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 16:33:53,993 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 16:33:53,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 16:33:53,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 16:33:53,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 16:33:53,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 16:33:53,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 16:33:53,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 16:33:53,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 16:33:53,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 16:33:53,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 16:33:53,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 16:33:53,996 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 16:33:53,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 16:33:53,996 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 16:33:53,996 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 16:33:53,996 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 16:33:53,997 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 16:33:54,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 16:33:54,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 16:33:54,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 16:33:54,341 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 16:33:54,341 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 16:33:54,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2023-08-29 16:33:55,576 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 16:33:55,907 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 16:33:55,908 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2023-08-29 16:33:55,932 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c159c1ee/3cb3d78e788b44c3a37a1e6e6b0d95e4/FLAG83d6e173c [2023-08-29 16:33:55,951 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c159c1ee/3cb3d78e788b44c3a37a1e6e6b0d95e4 [2023-08-29 16:33:55,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 16:33:55,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 16:33:55,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 16:33:55,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 16:33:55,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 16:33:55,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:33:55" (1/1) ... [2023-08-29 16:33:55,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f25396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:33:55, skipping insertion in model container [2023-08-29 16:33:55,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:33:55" (1/1) ... [2023-08-29 16:33:55,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 16:33:56,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 16:33:56,190 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-29 16:33:56,524 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i[75002,75015] [2023-08-29 16:33:56,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 16:33:56,599 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 16:33:56,609 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-29 16:33:56,641 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i[75002,75015] [2023-08-29 16:33:56,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 16:33:56,763 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 16:33:56,764 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 16:33:56,764 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 16:33:56,769 INFO L208 MainTranslator]: Completed translation [2023-08-29 16:33:56,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:33:56 WrapperNode [2023-08-29 16:33:56,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 16:33:56,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 16:33:56,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 16:33:56,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 16:33:56,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:33:56" (1/1) ... [2023-08-29 16:33:56,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:33:56" (1/1) ... [2023-08-29 16:33:56,840 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 226 [2023-08-29 16:33:56,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 16:33:56,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 16:33:56,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 16:33:56,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 16:33:56,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:33:56" (1/1) ... [2023-08-29 16:33:56,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:33:56" (1/1) ... [2023-08-29 16:33:56,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:33:56" (1/1) ... [2023-08-29 16:33:56,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:33:56" (1/1) ... [2023-08-29 16:33:56,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:33:56" (1/1) ... [2023-08-29 16:33:56,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:33:56" (1/1) ... [2023-08-29 16:33:56,930 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:33:56" (1/1) ... [2023-08-29 16:33:56,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:33:56" (1/1) ... [2023-08-29 16:33:56,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 16:33:56,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 16:33:56,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 16:33:56,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 16:33:56,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:33:56" (1/1) ... [2023-08-29 16:33:56,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 16:33:56,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 16:33:56,989 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 16:33:56,996 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 16:33:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 16:33:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 16:33:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 16:33:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 16:33:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 16:33:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 16:33:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 16:33:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 16:33:57,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 16:33:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-29 16:33:57,027 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-29 16:33:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 16:33:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 16:33:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 16:33:57,029 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 16:33:57,315 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 16:33:57,317 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 16:33:57,794 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 16:33:57,912 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 16:33:57,913 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 16:33:57,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:33:57 BoogieIcfgContainer [2023-08-29 16:33:57,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 16:33:57,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 16:33:57,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 16:33:57,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 16:33:57,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:33:55" (1/3) ... [2023-08-29 16:33:57,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55aa5a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:33:57, skipping insertion in model container [2023-08-29 16:33:57,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:33:56" (2/3) ... [2023-08-29 16:33:57,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55aa5a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:33:57, skipping insertion in model container [2023-08-29 16:33:57,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:33:57" (3/3) ... [2023-08-29 16:33:57,922 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2023-08-29 16:33:57,929 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 16:33:57,937 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 16:33:57,937 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-08-29 16:33:57,937 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 16:33:58,003 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 16:33:58,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 231 transitions, 478 flow [2023-08-29 16:33:58,142 INFO L130 PetriNetUnfolder]: 8/309 cut-off events. [2023-08-29 16:33:58,142 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 16:33:58,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 309 events. 8/309 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 654 event pairs, 0 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 163. Up to 4 conditions per place. [2023-08-29 16:33:58,148 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 231 transitions, 478 flow [2023-08-29 16:33:58,152 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 228 transitions, 468 flow [2023-08-29 16:33:58,155 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 16:33:58,163 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 229 places, 228 transitions, 468 flow [2023-08-29 16:33:58,165 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 229 places, 228 transitions, 468 flow [2023-08-29 16:33:58,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 228 transitions, 468 flow [2023-08-29 16:33:58,263 INFO L130 PetriNetUnfolder]: 7/308 cut-off events. [2023-08-29 16:33:58,269 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 16:33:58,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 308 events. 7/308 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 659 event pairs, 0 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 162. Up to 4 conditions per place. [2023-08-29 16:33:58,274 INFO L119 LiptonReduction]: Number of co-enabled transitions 6368 [2023-08-29 16:34:43,399 WARN L222 SmtUtils]: Spent 6.84s on a formula simplification. DAG size of input: 191 DAG size of output: 184 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 16:34:46,496 INFO L134 LiptonReduction]: Checked pairs total: 34860 [2023-08-29 16:34:46,496 INFO L136 LiptonReduction]: Total number of compositions: 189 [2023-08-29 16:34:46,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 16:34:46,511 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;@225bc5a4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 16:34:46,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-29 16:34:46,512 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 16:34:46,512 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 16:34:46,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:46,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 16:34:46,513 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:46,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:46,517 INFO L85 PathProgramCache]: Analyzing trace with hash 860, now seen corresponding path program 1 times [2023-08-29 16:34:46,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:46,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789735670] [2023-08-29 16:34:46,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:46,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:46,798 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 16:34:46,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:46,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789735670] [2023-08-29 16:34:46,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789735670] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:46,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:46,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 16:34:46,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037949977] [2023-08-29 16:34:46,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:46,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 16:34:46,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:46,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 16:34:46,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 16:34:46,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 420 [2023-08-29 16:34:46,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 83 transitions, 178 flow. Second operand has 2 states, 2 states have (on average 199.5) internal successors, (399), 2 states have internal predecessors, (399), 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 16:34:46,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:46,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 420 [2023-08-29 16:34:46,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:47,363 INFO L130 PetriNetUnfolder]: 771/1979 cut-off events. [2023-08-29 16:34:47,364 INFO L131 PetriNetUnfolder]: For 38/80 co-relation queries the response was YES. [2023-08-29 16:34:47,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3287 conditions, 1979 events. 771/1979 cut-off events. For 38/80 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 12748 event pairs, 770 based on Foata normal form. 74/1928 useless extension candidates. Maximal degree in co-relation 3112. Up to 1284 conditions per place. [2023-08-29 16:34:47,377 INFO L137 encePairwiseOnDemand]: 404/420 looper letters, 31 selfloop transitions, 0 changer transitions 1/66 dead transitions. [2023-08-29 16:34:47,377 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 66 transitions, 208 flow [2023-08-29 16:34:47,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 16:34:47,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 16:34:47,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 446 transitions. [2023-08-29 16:34:47,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.530952380952381 [2023-08-29 16:34:47,397 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 446 transitions. [2023-08-29 16:34:47,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 446 transitions. [2023-08-29 16:34:47,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:47,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 446 transitions. [2023-08-29 16:34:47,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 223.0) internal successors, (446), 2 states have internal predecessors, (446), 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 16:34:47,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 420.0) internal successors, (1260), 3 states have internal predecessors, (1260), 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 16:34:47,412 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 420.0) internal successors, (1260), 3 states have internal predecessors, (1260), 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 16:34:47,414 INFO L175 Difference]: Start difference. First operand has 86 places, 83 transitions, 178 flow. Second operand 2 states and 446 transitions. [2023-08-29 16:34:47,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 66 transitions, 208 flow [2023-08-29 16:34:47,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 66 transitions, 200 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 16:34:47,422 INFO L231 Difference]: Finished difference. Result has 68 places, 65 transitions, 134 flow [2023-08-29 16:34:47,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=134, PETRI_PLACES=68, PETRI_TRANSITIONS=65} [2023-08-29 16:34:47,429 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -18 predicate places. [2023-08-29 16:34:47,429 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 65 transitions, 134 flow [2023-08-29 16:34:47,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 199.5) internal successors, (399), 2 states have internal predecessors, (399), 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 16:34:47,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:47,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:47,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 16:34:47,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:47,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:47,433 INFO L85 PathProgramCache]: Analyzing trace with hash 910082406, now seen corresponding path program 1 times [2023-08-29 16:34:47,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:47,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969678565] [2023-08-29 16:34:47,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:47,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:47,992 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 16:34:47,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:47,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969678565] [2023-08-29 16:34:47,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969678565] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:47,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:47,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 16:34:47,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653140772] [2023-08-29 16:34:47,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:47,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 16:34:47,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:47,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 16:34:47,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 16:34:48,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 420 [2023-08-29 16:34:48,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 65 transitions, 134 flow. Second operand has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 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 16:34:48,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:48,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 420 [2023-08-29 16:34:48,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:49,156 INFO L130 PetriNetUnfolder]: 1823/3497 cut-off events. [2023-08-29 16:34:49,157 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 16:34:49,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6502 conditions, 3497 events. 1823/3497 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 20423 event pairs, 1363 based on Foata normal form. 0/3341 useless extension candidates. Maximal degree in co-relation 6499. Up to 2658 conditions per place. [2023-08-29 16:34:49,171 INFO L137 encePairwiseOnDemand]: 406/420 looper letters, 63 selfloop transitions, 31 changer transitions 0/110 dead transitions. [2023-08-29 16:34:49,172 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 110 transitions, 412 flow [2023-08-29 16:34:49,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 16:34:49,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 16:34:49,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1067 transitions. [2023-08-29 16:34:49,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4234126984126984 [2023-08-29 16:34:49,175 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1067 transitions. [2023-08-29 16:34:49,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1067 transitions. [2023-08-29 16:34:49,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:49,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1067 transitions. [2023-08-29 16:34:49,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.83333333333334) internal successors, (1067), 6 states have internal predecessors, (1067), 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 16:34:49,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 420.0) internal successors, (2940), 7 states have internal predecessors, (2940), 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 16:34:49,185 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 420.0) internal successors, (2940), 7 states have internal predecessors, (2940), 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 16:34:49,185 INFO L175 Difference]: Start difference. First operand has 68 places, 65 transitions, 134 flow. Second operand 6 states and 1067 transitions. [2023-08-29 16:34:49,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 110 transitions, 412 flow [2023-08-29 16:34:49,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 110 transitions, 412 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 16:34:49,188 INFO L231 Difference]: Finished difference. Result has 77 places, 94 transitions, 340 flow [2023-08-29 16:34:49,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=340, PETRI_PLACES=77, PETRI_TRANSITIONS=94} [2023-08-29 16:34:49,189 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -9 predicate places. [2023-08-29 16:34:49,189 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 94 transitions, 340 flow [2023-08-29 16:34:49,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 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 16:34:49,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:49,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:49,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 16:34:49,191 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:49,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:49,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1114239767, now seen corresponding path program 1 times [2023-08-29 16:34:49,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:49,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908057467] [2023-08-29 16:34:49,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:49,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:49,315 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 16:34:49,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:49,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908057467] [2023-08-29 16:34:49,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908057467] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:49,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:49,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:34:49,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420009866] [2023-08-29 16:34:49,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:49,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:34:49,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:49,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:34:49,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:34:49,324 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 420 [2023-08-29 16:34:49,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 94 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 197.66666666666666) internal successors, (593), 3 states have internal predecessors, (593), 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 16:34:49,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:49,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 420 [2023-08-29 16:34:49,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:49,839 INFO L130 PetriNetUnfolder]: 1104/2733 cut-off events. [2023-08-29 16:34:49,839 INFO L131 PetriNetUnfolder]: For 927/927 co-relation queries the response was YES. [2023-08-29 16:34:49,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5842 conditions, 2733 events. 1104/2733 cut-off events. For 927/927 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 18932 event pairs, 830 based on Foata normal form. 0/2583 useless extension candidates. Maximal degree in co-relation 5834. Up to 1654 conditions per place. [2023-08-29 16:34:49,852 INFO L137 encePairwiseOnDemand]: 417/420 looper letters, 55 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2023-08-29 16:34:49,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 95 transitions, 456 flow [2023-08-29 16:34:49,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:34:49,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:34:49,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 621 transitions. [2023-08-29 16:34:49,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4928571428571429 [2023-08-29 16:34:49,855 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 621 transitions. [2023-08-29 16:34:49,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 621 transitions. [2023-08-29 16:34:49,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:49,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 621 transitions. [2023-08-29 16:34:49,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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 16:34:49,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 420.0) internal successors, (1680), 4 states have internal predecessors, (1680), 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 16:34:49,861 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 420.0) internal successors, (1680), 4 states have internal predecessors, (1680), 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 16:34:49,861 INFO L175 Difference]: Start difference. First operand has 77 places, 94 transitions, 340 flow. Second operand 3 states and 621 transitions. [2023-08-29 16:34:49,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 95 transitions, 456 flow [2023-08-29 16:34:49,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 95 transitions, 456 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 16:34:49,866 INFO L231 Difference]: Finished difference. Result has 80 places, 95 transitions, 352 flow [2023-08-29 16:34:49,866 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=80, PETRI_TRANSITIONS=95} [2023-08-29 16:34:49,867 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -6 predicate places. [2023-08-29 16:34:49,867 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 95 transitions, 352 flow [2023-08-29 16:34:49,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.66666666666666) internal successors, (593), 3 states have internal predecessors, (593), 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 16:34:49,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:49,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:49,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 16:34:49,868 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:49,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:49,869 INFO L85 PathProgramCache]: Analyzing trace with hash 752495229, now seen corresponding path program 1 times [2023-08-29 16:34:49,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:49,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435152267] [2023-08-29 16:34:49,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:49,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:49,945 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 16:34:49,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:49,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435152267] [2023-08-29 16:34:49,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435152267] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:49,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:49,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 16:34:49,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340257711] [2023-08-29 16:34:49,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:49,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:34:49,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:49,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:34:49,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:34:49,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 420 [2023-08-29 16:34:49,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 95 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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 16:34:49,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:49,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 420 [2023-08-29 16:34:49,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:50,290 INFO L130 PetriNetUnfolder]: 351/914 cut-off events. [2023-08-29 16:34:50,290 INFO L131 PetriNetUnfolder]: For 182/182 co-relation queries the response was YES. [2023-08-29 16:34:50,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1820 conditions, 914 events. 351/914 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 5096 event pairs, 290 based on Foata normal form. 0/871 useless extension candidates. Maximal degree in co-relation 1810. Up to 511 conditions per place. [2023-08-29 16:34:50,296 INFO L137 encePairwiseOnDemand]: 417/420 looper letters, 39 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2023-08-29 16:34:50,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 74 transitions, 292 flow [2023-08-29 16:34:50,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:34:50,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:34:50,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 630 transitions. [2023-08-29 16:34:50,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-08-29 16:34:50,299 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 630 transitions. [2023-08-29 16:34:50,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 630 transitions. [2023-08-29 16:34:50,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:50,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 630 transitions. [2023-08-29 16:34:50,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 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 16:34:50,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 420.0) internal successors, (1680), 4 states have internal predecessors, (1680), 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 16:34:50,305 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 420.0) internal successors, (1680), 4 states have internal predecessors, (1680), 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 16:34:50,305 INFO L175 Difference]: Start difference. First operand has 80 places, 95 transitions, 352 flow. Second operand 3 states and 630 transitions. [2023-08-29 16:34:50,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 74 transitions, 292 flow [2023-08-29 16:34:50,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 74 transitions, 267 flow, removed 1 selfloop flow, removed 10 redundant places. [2023-08-29 16:34:50,308 INFO L231 Difference]: Finished difference. Result has 71 places, 64 transitions, 157 flow [2023-08-29 16:34:50,308 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=71, PETRI_TRANSITIONS=64} [2023-08-29 16:34:50,309 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -15 predicate places. [2023-08-29 16:34:50,309 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 64 transitions, 157 flow [2023-08-29 16:34:50,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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 16:34:50,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:50,310 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:50,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 16:34:50,310 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:50,310 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:50,311 INFO L85 PathProgramCache]: Analyzing trace with hash -907961946, now seen corresponding path program 1 times [2023-08-29 16:34:50,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:50,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775270791] [2023-08-29 16:34:50,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:50,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:50,622 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 16:34:50,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:50,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775270791] [2023-08-29 16:34:50,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775270791] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:50,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:50,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 16:34:50,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157347688] [2023-08-29 16:34:50,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:50,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 16:34:50,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:50,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 16:34:50,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 16:34:50,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 420 [2023-08-29 16:34:50,908 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 64 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 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 16:34:50,908 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:50,908 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 420 [2023-08-29 16:34:50,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:51,223 INFO L130 PetriNetUnfolder]: 611/1173 cut-off events. [2023-08-29 16:34:51,223 INFO L131 PetriNetUnfolder]: For 446/446 co-relation queries the response was YES. [2023-08-29 16:34:51,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2726 conditions, 1173 events. 611/1173 cut-off events. For 446/446 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 5266 event pairs, 610 based on Foata normal form. 0/1131 useless extension candidates. Maximal degree in co-relation 2720. Up to 1038 conditions per place. [2023-08-29 16:34:51,229 INFO L137 encePairwiseOnDemand]: 414/420 looper letters, 42 selfloop transitions, 5 changer transitions 0/63 dead transitions. [2023-08-29 16:34:51,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 63 transitions, 249 flow [2023-08-29 16:34:51,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 16:34:51,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 16:34:51,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1020 transitions. [2023-08-29 16:34:51,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40476190476190477 [2023-08-29 16:34:51,233 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1020 transitions. [2023-08-29 16:34:51,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1020 transitions. [2023-08-29 16:34:51,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:51,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1020 transitions. [2023-08-29 16:34:51,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 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 16:34:51,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 420.0) internal successors, (2940), 7 states have internal predecessors, (2940), 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 16:34:51,241 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 420.0) internal successors, (2940), 7 states have internal predecessors, (2940), 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 16:34:51,242 INFO L175 Difference]: Start difference. First operand has 71 places, 64 transitions, 157 flow. Second operand 6 states and 1020 transitions. [2023-08-29 16:34:51,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 63 transitions, 249 flow [2023-08-29 16:34:51,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 63 transitions, 239 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-29 16:34:51,244 INFO L231 Difference]: Finished difference. Result has 72 places, 63 transitions, 155 flow [2023-08-29 16:34:51,244 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=155, PETRI_PLACES=72, PETRI_TRANSITIONS=63} [2023-08-29 16:34:51,245 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -14 predicate places. [2023-08-29 16:34:51,245 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 63 transitions, 155 flow [2023-08-29 16:34:51,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 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 16:34:51,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:51,246 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:51,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 16:34:51,246 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:51,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:51,247 INFO L85 PathProgramCache]: Analyzing trace with hash 738674119, now seen corresponding path program 1 times [2023-08-29 16:34:51,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:51,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755792779] [2023-08-29 16:34:51,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:51,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:51,636 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 16:34:51,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:51,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755792779] [2023-08-29 16:34:51,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755792779] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:51,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:51,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 16:34:51,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87864623] [2023-08-29 16:34:51,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:51,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 16:34:51,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:51,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 16:34:51,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 16:34:51,942 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 420 [2023-08-29 16:34:51,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 63 transitions, 155 flow. Second operand has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 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 16:34:51,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:51,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 420 [2023-08-29 16:34:51,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:52,657 INFO L130 PetriNetUnfolder]: 947/1708 cut-off events. [2023-08-29 16:34:52,658 INFO L131 PetriNetUnfolder]: For 415/417 co-relation queries the response was YES. [2023-08-29 16:34:52,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3938 conditions, 1708 events. 947/1708 cut-off events. For 415/417 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 8035 event pairs, 504 based on Foata normal form. 1/1666 useless extension candidates. Maximal degree in co-relation 3933. Up to 1181 conditions per place. [2023-08-29 16:34:52,666 INFO L137 encePairwiseOnDemand]: 409/420 looper letters, 71 selfloop transitions, 22 changer transitions 0/112 dead transitions. [2023-08-29 16:34:52,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 112 transitions, 490 flow [2023-08-29 16:34:52,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 16:34:52,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 16:34:52,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1150 transitions. [2023-08-29 16:34:52,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45634920634920634 [2023-08-29 16:34:52,670 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1150 transitions. [2023-08-29 16:34:52,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1150 transitions. [2023-08-29 16:34:52,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:52,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1150 transitions. [2023-08-29 16:34:52,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 191.66666666666666) internal successors, (1150), 6 states have internal predecessors, (1150), 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 16:34:52,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 420.0) internal successors, (2940), 7 states have internal predecessors, (2940), 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 16:34:52,677 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 420.0) internal successors, (2940), 7 states have internal predecessors, (2940), 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 16:34:52,679 INFO L175 Difference]: Start difference. First operand has 72 places, 63 transitions, 155 flow. Second operand 6 states and 1150 transitions. [2023-08-29 16:34:52,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 112 transitions, 490 flow [2023-08-29 16:34:52,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 112 transitions, 480 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 16:34:52,683 INFO L231 Difference]: Finished difference. Result has 77 places, 84 transitions, 328 flow [2023-08-29 16:34:52,683 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=77, PETRI_TRANSITIONS=84} [2023-08-29 16:34:52,686 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -9 predicate places. [2023-08-29 16:34:52,686 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 84 transitions, 328 flow [2023-08-29 16:34:52,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 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 16:34:52,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:52,687 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:52,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 16:34:52,687 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:52,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:52,687 INFO L85 PathProgramCache]: Analyzing trace with hash 382828346, now seen corresponding path program 1 times [2023-08-29 16:34:52,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:52,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186702331] [2023-08-29 16:34:52,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:52,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:53,274 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 16:34:53,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:53,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186702331] [2023-08-29 16:34:53,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186702331] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:53,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:53,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 16:34:53,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251752900] [2023-08-29 16:34:53,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:53,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 16:34:53,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:53,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 16:34:53,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 16:34:54,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-29 16:34:54,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 84 transitions, 328 flow. Second operand has 10 states, 10 states have (on average 170.6) internal successors, (1706), 10 states have internal predecessors, (1706), 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 16:34:54,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:54,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-29 16:34:54,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:55,215 INFO L130 PetriNetUnfolder]: 1160/2097 cut-off events. [2023-08-29 16:34:55,215 INFO L131 PetriNetUnfolder]: For 1365/1365 co-relation queries the response was YES. [2023-08-29 16:34:55,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6191 conditions, 2097 events. 1160/2097 cut-off events. For 1365/1365 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 10712 event pairs, 61 based on Foata normal form. 24/2104 useless extension candidates. Maximal degree in co-relation 6182. Up to 1113 conditions per place. [2023-08-29 16:34:55,227 INFO L137 encePairwiseOnDemand]: 407/420 looper letters, 130 selfloop transitions, 36 changer transitions 0/185 dead transitions. [2023-08-29 16:34:55,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 185 transitions, 1131 flow [2023-08-29 16:34:55,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:34:55,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:34:55,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1812 transitions. [2023-08-29 16:34:55,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43142857142857144 [2023-08-29 16:34:55,232 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1812 transitions. [2023-08-29 16:34:55,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1812 transitions. [2023-08-29 16:34:55,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:55,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1812 transitions. [2023-08-29 16:34:55,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 181.2) internal successors, (1812), 10 states have internal predecessors, (1812), 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 16:34:55,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:34:55,243 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:34:55,243 INFO L175 Difference]: Start difference. First operand has 77 places, 84 transitions, 328 flow. Second operand 10 states and 1812 transitions. [2023-08-29 16:34:55,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 185 transitions, 1131 flow [2023-08-29 16:34:55,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 185 transitions, 1131 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 16:34:55,251 INFO L231 Difference]: Finished difference. Result has 92 places, 117 transitions, 714 flow [2023-08-29 16:34:55,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=714, PETRI_PLACES=92, PETRI_TRANSITIONS=117} [2023-08-29 16:34:55,254 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 6 predicate places. [2023-08-29 16:34:55,254 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 117 transitions, 714 flow [2023-08-29 16:34:55,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 170.6) internal successors, (1706), 10 states have internal predecessors, (1706), 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 16:34:55,255 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:55,255 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:55,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 16:34:55,255 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:55,256 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:55,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1196461396, now seen corresponding path program 2 times [2023-08-29 16:34:55,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:55,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373979922] [2023-08-29 16:34:55,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:55,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:55,884 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 16:34:55,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:55,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373979922] [2023-08-29 16:34:55,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373979922] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:55,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:55,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:34:55,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750536394] [2023-08-29 16:34:55,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:55,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:34:55,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:55,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:34:55,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:34:56,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-29 16:34:56,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 117 transitions, 714 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:34:56,838 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:56,838 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-29 16:34:56,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:58,318 INFO L130 PetriNetUnfolder]: 1274/2435 cut-off events. [2023-08-29 16:34:58,318 INFO L131 PetriNetUnfolder]: For 4305/4305 co-relation queries the response was YES. [2023-08-29 16:34:58,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8330 conditions, 2435 events. 1274/2435 cut-off events. For 4305/4305 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 13228 event pairs, 476 based on Foata normal form. 24/2430 useless extension candidates. Maximal degree in co-relation 8314. Up to 1518 conditions per place. [2023-08-29 16:34:58,336 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 105 selfloop transitions, 53 changer transitions 0/177 dead transitions. [2023-08-29 16:34:58,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 177 transitions, 1301 flow [2023-08-29 16:34:58,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 16:34:58,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 16:34:58,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1638 transitions. [2023-08-29 16:34:58,341 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2023-08-29 16:34:58,341 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1638 transitions. [2023-08-29 16:34:58,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1638 transitions. [2023-08-29 16:34:58,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:58,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1638 transitions. [2023-08-29 16:34:58,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 182.0) internal successors, (1638), 9 states have internal predecessors, (1638), 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 16:34:58,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 420.0) internal successors, (4200), 10 states have internal predecessors, (4200), 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 16:34:58,351 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 420.0) internal successors, (4200), 10 states have internal predecessors, (4200), 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 16:34:58,351 INFO L175 Difference]: Start difference. First operand has 92 places, 117 transitions, 714 flow. Second operand 9 states and 1638 transitions. [2023-08-29 16:34:58,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 177 transitions, 1301 flow [2023-08-29 16:34:58,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 177 transitions, 1289 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 16:34:58,367 INFO L231 Difference]: Finished difference. Result has 100 places, 131 transitions, 1037 flow [2023-08-29 16:34:58,368 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1037, PETRI_PLACES=100, PETRI_TRANSITIONS=131} [2023-08-29 16:34:58,368 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 14 predicate places. [2023-08-29 16:34:58,368 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 131 transitions, 1037 flow [2023-08-29 16:34:58,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:34:58,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:58,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:58,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 16:34:58,370 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:58,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:58,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1054446058, now seen corresponding path program 1 times [2023-08-29 16:34:58,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:58,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060784312] [2023-08-29 16:34:58,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:58,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:58,861 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 16:34:58,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:58,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060784312] [2023-08-29 16:34:58,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060784312] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:58,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:58,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 16:34:58,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425789752] [2023-08-29 16:34:58,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:58,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 16:34:58,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:58,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 16:34:58,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 16:34:59,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-29 16:34:59,624 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 131 transitions, 1037 flow. Second operand has 10 states, 10 states have (on average 170.6) internal successors, (1706), 10 states have internal predecessors, (1706), 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 16:34:59,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:59,624 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-29 16:34:59,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:00,625 INFO L130 PetriNetUnfolder]: 1498/2783 cut-off events. [2023-08-29 16:35:00,625 INFO L131 PetriNetUnfolder]: For 7784/7784 co-relation queries the response was YES. [2023-08-29 16:35:00,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10911 conditions, 2783 events. 1498/2783 cut-off events. For 7784/7784 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 15470 event pairs, 121 based on Foata normal form. 24/2778 useless extension candidates. Maximal degree in co-relation 10892. Up to 1493 conditions per place. [2023-08-29 16:35:00,643 INFO L137 encePairwiseOnDemand]: 407/420 looper letters, 200 selfloop transitions, 54 changer transitions 0/273 dead transitions. [2023-08-29 16:35:00,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 273 transitions, 2587 flow [2023-08-29 16:35:00,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:35:00,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:35:00,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1821 transitions. [2023-08-29 16:35:00,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43357142857142855 [2023-08-29 16:35:00,649 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1821 transitions. [2023-08-29 16:35:00,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1821 transitions. [2023-08-29 16:35:00,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:00,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1821 transitions. [2023-08-29 16:35:00,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 182.1) internal successors, (1821), 10 states have internal predecessors, (1821), 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 16:35:00,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:35:00,660 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:35:00,660 INFO L175 Difference]: Start difference. First operand has 100 places, 131 transitions, 1037 flow. Second operand 10 states and 1821 transitions. [2023-08-29 16:35:00,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 273 transitions, 2587 flow [2023-08-29 16:35:00,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 273 transitions, 2506 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-29 16:35:00,685 INFO L231 Difference]: Finished difference. Result has 110 places, 180 transitions, 1693 flow [2023-08-29 16:35:00,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=998, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1693, PETRI_PLACES=110, PETRI_TRANSITIONS=180} [2023-08-29 16:35:00,686 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 24 predicate places. [2023-08-29 16:35:00,686 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 180 transitions, 1693 flow [2023-08-29 16:35:00,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 170.6) internal successors, (1706), 10 states have internal predecessors, (1706), 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 16:35:00,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:35:00,687 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:35:00,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 16:35:00,688 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:35:00,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:35:00,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1196469580, now seen corresponding path program 2 times [2023-08-29 16:35:00,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:35:00,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280295232] [2023-08-29 16:35:00,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:35:00,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:35:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:35:01,245 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 16:35:01,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:35:01,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280295232] [2023-08-29 16:35:01,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280295232] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:35:01,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:35:01,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:35:01,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517710486] [2023-08-29 16:35:01,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:35:01,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:35:01,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:35:01,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:35:01,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:35:02,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-29 16:35:02,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 180 transitions, 1693 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:35:02,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:35:02,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-29 16:35:02,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:03,332 INFO L130 PetriNetUnfolder]: 1617/3113 cut-off events. [2023-08-29 16:35:03,332 INFO L131 PetriNetUnfolder]: For 13219/13221 co-relation queries the response was YES. [2023-08-29 16:35:03,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13616 conditions, 3113 events. 1617/3113 cut-off events. For 13219/13221 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 18186 event pairs, 378 based on Foata normal form. 25/3100 useless extension candidates. Maximal degree in co-relation 13591. Up to 1958 conditions per place. [2023-08-29 16:35:03,353 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 148 selfloop transitions, 90 changer transitions 0/257 dead transitions. [2023-08-29 16:35:03,354 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 257 transitions, 2721 flow [2023-08-29 16:35:03,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 16:35:03,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 16:35:03,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1643 transitions. [2023-08-29 16:35:03,358 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43465608465608463 [2023-08-29 16:35:03,358 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1643 transitions. [2023-08-29 16:35:03,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1643 transitions. [2023-08-29 16:35:03,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:03,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1643 transitions. [2023-08-29 16:35:03,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 182.55555555555554) internal successors, (1643), 9 states have internal predecessors, (1643), 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 16:35:03,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 420.0) internal successors, (4200), 10 states have internal predecessors, (4200), 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 16:35:03,367 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 420.0) internal successors, (4200), 10 states have internal predecessors, (4200), 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 16:35:03,367 INFO L175 Difference]: Start difference. First operand has 110 places, 180 transitions, 1693 flow. Second operand 9 states and 1643 transitions. [2023-08-29 16:35:03,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 257 transitions, 2721 flow [2023-08-29 16:35:03,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 257 transitions, 2708 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-29 16:35:03,413 INFO L231 Difference]: Finished difference. Result has 119 places, 204 transitions, 2360 flow [2023-08-29 16:35:03,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=1684, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2360, PETRI_PLACES=119, PETRI_TRANSITIONS=204} [2023-08-29 16:35:03,414 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 33 predicate places. [2023-08-29 16:35:03,414 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 204 transitions, 2360 flow [2023-08-29 16:35:03,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:35:03,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:35:03,416 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:35:03,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 16:35:03,416 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:35:03,416 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:35:03,416 INFO L85 PathProgramCache]: Analyzing trace with hash 2069924828, now seen corresponding path program 3 times [2023-08-29 16:35:03,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:35:03,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115641286] [2023-08-29 16:35:03,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:35:03,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:35:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:35:03,895 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 16:35:03,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:35:03,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115641286] [2023-08-29 16:35:03,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115641286] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:35:03,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:35:03,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:35:03,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235701993] [2023-08-29 16:35:03,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:35:03,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:35:03,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:35:03,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:35:03,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:35:04,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-29 16:35:04,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 204 transitions, 2360 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:35:04,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:35:04,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-29 16:35:04,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:06,246 INFO L130 PetriNetUnfolder]: 1952/3764 cut-off events. [2023-08-29 16:35:06,246 INFO L131 PetriNetUnfolder]: For 23081/23083 co-relation queries the response was YES. [2023-08-29 16:35:06,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18137 conditions, 3764 events. 1952/3764 cut-off events. For 23081/23083 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 23224 event pairs, 426 based on Foata normal form. 25/3742 useless extension candidates. Maximal degree in co-relation 18109. Up to 1926 conditions per place. [2023-08-29 16:35:06,270 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 189 selfloop transitions, 136 changer transitions 0/344 dead transitions. [2023-08-29 16:35:06,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 344 transitions, 4510 flow [2023-08-29 16:35:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:35:06,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:35:06,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1826 transitions. [2023-08-29 16:35:06,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43476190476190474 [2023-08-29 16:35:06,275 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1826 transitions. [2023-08-29 16:35:06,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1826 transitions. [2023-08-29 16:35:06,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:06,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1826 transitions. [2023-08-29 16:35:06,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 182.6) internal successors, (1826), 10 states have internal predecessors, (1826), 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 16:35:06,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:35:06,284 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:35:06,285 INFO L175 Difference]: Start difference. First operand has 119 places, 204 transitions, 2360 flow. Second operand 10 states and 1826 transitions. [2023-08-29 16:35:06,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 344 transitions, 4510 flow [2023-08-29 16:35:06,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 344 transitions, 4415 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-29 16:35:06,362 INFO L231 Difference]: Finished difference. Result has 129 places, 270 transitions, 3803 flow [2023-08-29 16:35:06,362 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=2301, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3803, PETRI_PLACES=129, PETRI_TRANSITIONS=270} [2023-08-29 16:35:06,363 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 43 predicate places. [2023-08-29 16:35:06,363 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 270 transitions, 3803 flow [2023-08-29 16:35:06,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:35:06,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:35:06,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:35:06,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 16:35:06,364 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:35:06,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:35:06,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1454201596, now seen corresponding path program 3 times [2023-08-29 16:35:06,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:35:06,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509631354] [2023-08-29 16:35:06,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:35:06,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:35:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:35:06,832 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 16:35:06,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:35:06,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509631354] [2023-08-29 16:35:06,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509631354] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:35:06,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:35:06,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:35:06,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000395341] [2023-08-29 16:35:06,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:35:06,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:35:06,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:35:06,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:35:06,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:35:07,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-29 16:35:07,777 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 270 transitions, 3803 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:35:07,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:35:07,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-29 16:35:07,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:09,653 INFO L130 PetriNetUnfolder]: 2332/4467 cut-off events. [2023-08-29 16:35:09,653 INFO L131 PetriNetUnfolder]: For 38748/38758 co-relation queries the response was YES. [2023-08-29 16:35:09,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24213 conditions, 4467 events. 2332/4467 cut-off events. For 38748/38758 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 28815 event pairs, 672 based on Foata normal form. 27/4441 useless extension candidates. Maximal degree in co-relation 24179. Up to 2558 conditions per place. [2023-08-29 16:35:09,684 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 211 selfloop transitions, 184 changer transitions 0/414 dead transitions. [2023-08-29 16:35:09,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 414 transitions, 6431 flow [2023-08-29 16:35:09,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:35:09,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:35:09,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1820 transitions. [2023-08-29 16:35:09,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2023-08-29 16:35:09,689 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1820 transitions. [2023-08-29 16:35:09,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1820 transitions. [2023-08-29 16:35:09,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:09,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1820 transitions. [2023-08-29 16:35:09,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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 16:35:09,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:35:09,698 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:35:09,698 INFO L175 Difference]: Start difference. First operand has 129 places, 270 transitions, 3803 flow. Second operand 10 states and 1820 transitions. [2023-08-29 16:35:09,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 414 transitions, 6431 flow [2023-08-29 16:35:09,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 414 transitions, 6280 flow, removed 64 selfloop flow, removed 3 redundant places. [2023-08-29 16:35:09,862 INFO L231 Difference]: Finished difference. Result has 140 places, 344 transitions, 5624 flow [2023-08-29 16:35:09,862 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=3699, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5624, PETRI_PLACES=140, PETRI_TRANSITIONS=344} [2023-08-29 16:35:09,863 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 54 predicate places. [2023-08-29 16:35:09,864 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 344 transitions, 5624 flow [2023-08-29 16:35:09,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:35:09,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:35:09,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:35:09,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 16:35:09,865 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:35:09,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:35:09,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1840891124, now seen corresponding path program 4 times [2023-08-29 16:35:09,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:35:09,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633474483] [2023-08-29 16:35:09,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:35:09,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:35:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:35:10,335 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 16:35:10,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:35:10,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633474483] [2023-08-29 16:35:10,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633474483] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:35:10,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:35:10,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:35:10,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373426044] [2023-08-29 16:35:10,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:35:10,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:35:10,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:35:10,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:35:10,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:35:11,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-29 16:35:11,141 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 344 transitions, 5624 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:35:11,141 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:35:11,141 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-29 16:35:11,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:12,657 INFO L130 PetriNetUnfolder]: 2487/4857 cut-off events. [2023-08-29 16:35:12,657 INFO L131 PetriNetUnfolder]: For 51361/51371 co-relation queries the response was YES. [2023-08-29 16:35:12,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28072 conditions, 4857 events. 2487/4857 cut-off events. For 51361/51371 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 32510 event pairs, 690 based on Foata normal form. 27/4818 useless extension candidates. Maximal degree in co-relation 28034. Up to 2497 conditions per place. [2023-08-29 16:35:12,688 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 241 selfloop transitions, 213 changer transitions 0/473 dead transitions. [2023-08-29 16:35:12,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 473 transitions, 8163 flow [2023-08-29 16:35:12,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:35:12,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:35:12,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1821 transitions. [2023-08-29 16:35:12,697 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43357142857142855 [2023-08-29 16:35:12,697 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1821 transitions. [2023-08-29 16:35:12,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1821 transitions. [2023-08-29 16:35:12,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:12,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1821 transitions. [2023-08-29 16:35:12,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 182.1) internal successors, (1821), 10 states have internal predecessors, (1821), 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 16:35:12,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:35:12,706 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:35:12,706 INFO L175 Difference]: Start difference. First operand has 140 places, 344 transitions, 5624 flow. Second operand 10 states and 1821 transitions. [2023-08-29 16:35:12,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 473 transitions, 8163 flow [2023-08-29 16:35:12,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 473 transitions, 8034 flow, removed 39 selfloop flow, removed 4 redundant places. [2023-08-29 16:35:12,944 INFO L231 Difference]: Finished difference. Result has 152 places, 410 transitions, 7690 flow [2023-08-29 16:35:12,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=5510, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7690, PETRI_PLACES=152, PETRI_TRANSITIONS=410} [2023-08-29 16:35:12,945 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 66 predicate places. [2023-08-29 16:35:12,946 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 410 transitions, 7690 flow [2023-08-29 16:35:12,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:35:12,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:35:12,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:35:12,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 16:35:12,947 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:35:12,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:35:12,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1461590260, now seen corresponding path program 4 times [2023-08-29 16:35:12,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:35:12,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662040452] [2023-08-29 16:35:12,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:35:12,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:35:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:35:13,394 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 16:35:13,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:35:13,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662040452] [2023-08-29 16:35:13,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662040452] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:35:13,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:35:13,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:35:13,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919561055] [2023-08-29 16:35:13,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:35:13,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:35:13,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:35:13,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:35:13,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:35:14,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-29 16:35:14,370 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 410 transitions, 7690 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:35:14,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:35:14,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-29 16:35:14,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:16,298 INFO L130 PetriNetUnfolder]: 2661/5248 cut-off events. [2023-08-29 16:35:16,298 INFO L131 PetriNetUnfolder]: For 73375/73381 co-relation queries the response was YES. [2023-08-29 16:35:16,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33080 conditions, 5248 events. 2661/5248 cut-off events. For 73375/73381 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 36131 event pairs, 617 based on Foata normal form. 26/5198 useless extension candidates. Maximal degree in co-relation 33036. Up to 2988 conditions per place. [2023-08-29 16:35:16,333 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 260 selfloop transitions, 270 changer transitions 0/549 dead transitions. [2023-08-29 16:35:16,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 549 transitions, 10875 flow [2023-08-29 16:35:16,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:35:16,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:35:16,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1825 transitions. [2023-08-29 16:35:16,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2023-08-29 16:35:16,338 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1825 transitions. [2023-08-29 16:35:16,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1825 transitions. [2023-08-29 16:35:16,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:16,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1825 transitions. [2023-08-29 16:35:16,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 182.5) internal successors, (1825), 10 states have internal predecessors, (1825), 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 16:35:16,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:35:16,346 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:35:16,346 INFO L175 Difference]: Start difference. First operand has 152 places, 410 transitions, 7690 flow. Second operand 10 states and 1825 transitions. [2023-08-29 16:35:16,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 549 transitions, 10875 flow [2023-08-29 16:35:16,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 549 transitions, 10760 flow, removed 55 selfloop flow, removed 2 redundant places. [2023-08-29 16:35:16,658 INFO L231 Difference]: Finished difference. Result has 164 places, 475 transitions, 9942 flow [2023-08-29 16:35:16,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=7599, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=207, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9942, PETRI_PLACES=164, PETRI_TRANSITIONS=475} [2023-08-29 16:35:16,658 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 78 predicate places. [2023-08-29 16:35:16,658 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 475 transitions, 9942 flow [2023-08-29 16:35:16,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:35:16,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:35:16,659 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:35:16,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 16:35:16,659 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:35:16,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:35:16,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1202169736, now seen corresponding path program 5 times [2023-08-29 16:35:16,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:35:16,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952497117] [2023-08-29 16:35:16,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:35:16,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:35:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:35:17,102 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 16:35:17,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:35:17,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952497117] [2023-08-29 16:35:17,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952497117] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:35:17,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:35:17,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:35:17,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618915697] [2023-08-29 16:35:17,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:35:17,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:35:17,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:35:17,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:35:17,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:35:18,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-29 16:35:18,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 475 transitions, 9942 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:35:18,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:35:18,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-29 16:35:18,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:20,327 INFO L130 PetriNetUnfolder]: 2697/5410 cut-off events. [2023-08-29 16:35:20,327 INFO L131 PetriNetUnfolder]: For 89082/89096 co-relation queries the response was YES. [2023-08-29 16:35:20,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35649 conditions, 5410 events. 2697/5410 cut-off events. For 89082/89096 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 38129 event pairs, 929 based on Foata normal form. 28/5354 useless extension candidates. Maximal degree in co-relation 35600. Up to 3287 conditions per place. [2023-08-29 16:35:20,363 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 242 selfloop transitions, 302 changer transitions 0/563 dead transitions. [2023-08-29 16:35:20,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 563 transitions, 12169 flow [2023-08-29 16:35:20,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:35:20,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:35:20,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1817 transitions. [2023-08-29 16:35:20,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4326190476190476 [2023-08-29 16:35:20,366 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1817 transitions. [2023-08-29 16:35:20,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1817 transitions. [2023-08-29 16:35:20,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:20,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1817 transitions. [2023-08-29 16:35:20,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 181.7) internal successors, (1817), 10 states have internal predecessors, (1817), 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 16:35:20,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:35:20,373 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:35:20,373 INFO L175 Difference]: Start difference. First operand has 164 places, 475 transitions, 9942 flow. Second operand 10 states and 1817 transitions. [2023-08-29 16:35:20,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 563 transitions, 12169 flow [2023-08-29 16:35:20,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 563 transitions, 12003 flow, removed 65 selfloop flow, removed 3 redundant places. [2023-08-29 16:35:20,722 INFO L231 Difference]: Finished difference. Result has 174 places, 513 transitions, 11608 flow [2023-08-29 16:35:20,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=9786, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=266, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11608, PETRI_PLACES=174, PETRI_TRANSITIONS=513} [2023-08-29 16:35:20,723 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 88 predicate places. [2023-08-29 16:35:20,723 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 513 transitions, 11608 flow [2023-08-29 16:35:20,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:35:20,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:35:20,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:35:20,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 16:35:20,724 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:35:20,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:35:20,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1202408560, now seen corresponding path program 5 times [2023-08-29 16:35:20,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:35:20,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451433026] [2023-08-29 16:35:20,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:35:20,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:35:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:35:21,157 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 16:35:21,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:35:21,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451433026] [2023-08-29 16:35:21,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451433026] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:35:21,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:35:21,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:35:21,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132340564] [2023-08-29 16:35:21,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:35:21,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:35:21,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:35:21,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:35:21,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:35:22,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-29 16:35:22,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 513 transitions, 11608 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:35:22,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:35:22,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-29 16:35:22,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:24,214 INFO L130 PetriNetUnfolder]: 2722/5556 cut-off events. [2023-08-29 16:35:24,214 INFO L131 PetriNetUnfolder]: For 100417/100427 co-relation queries the response was YES. [2023-08-29 16:35:24,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38110 conditions, 5556 events. 2722/5556 cut-off events. For 100417/100427 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 39980 event pairs, 684 based on Foata normal form. 27/5490 useless extension candidates. Maximal degree in co-relation 38057. Up to 3293 conditions per place. [2023-08-29 16:35:24,260 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 255 selfloop transitions, 332 changer transitions 0/606 dead transitions. [2023-08-29 16:35:24,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 606 transitions, 14138 flow [2023-08-29 16:35:24,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:35:24,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:35:24,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1822 transitions. [2023-08-29 16:35:24,263 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4338095238095238 [2023-08-29 16:35:24,263 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1822 transitions. [2023-08-29 16:35:24,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1822 transitions. [2023-08-29 16:35:24,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:24,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1822 transitions. [2023-08-29 16:35:24,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 182.2) internal successors, (1822), 10 states have internal predecessors, (1822), 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 16:35:24,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:35:24,270 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:35:24,270 INFO L175 Difference]: Start difference. First operand has 174 places, 513 transitions, 11608 flow. Second operand 10 states and 1822 transitions. [2023-08-29 16:35:24,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 606 transitions, 14138 flow [2023-08-29 16:35:24,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 606 transitions, 13937 flow, removed 54 selfloop flow, removed 4 redundant places. [2023-08-29 16:35:24,902 INFO L231 Difference]: Finished difference. Result has 183 places, 554 transitions, 13537 flow [2023-08-29 16:35:24,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=11419, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=293, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13537, PETRI_PLACES=183, PETRI_TRANSITIONS=554} [2023-08-29 16:35:24,903 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 97 predicate places. [2023-08-29 16:35:24,903 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 554 transitions, 13537 flow [2023-08-29 16:35:24,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 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 16:35:24,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:35:24,904 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:35:24,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 16:35:24,905 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:35:24,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:35:24,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1007121867, now seen corresponding path program 1 times [2023-08-29 16:35:24,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:35:24,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699024890] [2023-08-29 16:35:24,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:35:24,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:35:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:35:27,135 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 16:35:27,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:35:27,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699024890] [2023-08-29 16:35:27,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699024890] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:35:27,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:35:27,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 16:35:27,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814737968] [2023-08-29 16:35:27,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:35:27,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 16:35:27,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:35:27,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 16:35:27,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-29 16:35:28,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 420 [2023-08-29 16:35:28,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 554 transitions, 13537 flow. Second operand has 13 states, 13 states have (on average 171.3846153846154) internal successors, (2228), 13 states have internal predecessors, (2228), 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 16:35:28,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:35:28,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 420 [2023-08-29 16:35:28,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:32,184 INFO L130 PetriNetUnfolder]: 4419/8866 cut-off events. [2023-08-29 16:35:32,184 INFO L131 PetriNetUnfolder]: For 174190/174234 co-relation queries the response was YES. [2023-08-29 16:35:32,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62368 conditions, 8866 events. 4419/8866 cut-off events. For 174190/174234 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 69220 event pairs, 737 based on Foata normal form. 22/8750 useless extension candidates. Maximal degree in co-relation 62311. Up to 3834 conditions per place. [2023-08-29 16:35:32,254 INFO L137 encePairwiseOnDemand]: 403/420 looper letters, 606 selfloop transitions, 303 changer transitions 0/928 dead transitions. [2023-08-29 16:35:32,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 928 transitions, 22243 flow [2023-08-29 16:35:32,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 16:35:32,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 16:35:32,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2569 transitions. [2023-08-29 16:35:32,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4369047619047619 [2023-08-29 16:35:32,257 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2569 transitions. [2023-08-29 16:35:32,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2569 transitions. [2023-08-29 16:35:32,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:32,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2569 transitions. [2023-08-29 16:35:32,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 183.5) internal successors, (2569), 14 states have internal predecessors, (2569), 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 16:35:32,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 420.0) internal successors, (6300), 15 states have internal predecessors, (6300), 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 16:35:32,265 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 420.0) internal successors, (6300), 15 states have internal predecessors, (6300), 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 16:35:32,265 INFO L175 Difference]: Start difference. First operand has 183 places, 554 transitions, 13537 flow. Second operand 14 states and 2569 transitions. [2023-08-29 16:35:32,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 928 transitions, 22243 flow [2023-08-29 16:35:33,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 928 transitions, 22002 flow, removed 57 selfloop flow, removed 4 redundant places. [2023-08-29 16:35:33,418 INFO L231 Difference]: Finished difference. Result has 201 places, 708 transitions, 18837 flow [2023-08-29 16:35:33,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=13374, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=18837, PETRI_PLACES=201, PETRI_TRANSITIONS=708} [2023-08-29 16:35:33,419 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 115 predicate places. [2023-08-29 16:35:33,419 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 708 transitions, 18837 flow [2023-08-29 16:35:33,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 171.3846153846154) internal successors, (2228), 13 states have internal predecessors, (2228), 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 16:35:33,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:35:33,420 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:35:33,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 16:35:33,420 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:35:33,421 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:35:33,421 INFO L85 PathProgramCache]: Analyzing trace with hash 289856995, now seen corresponding path program 2 times [2023-08-29 16:35:33,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:35:33,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410433067] [2023-08-29 16:35:33,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:35:33,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:35:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:35:34,107 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 16:35:34,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:35:34,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410433067] [2023-08-29 16:35:34,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410433067] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:35:34,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:35:34,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-29 16:35:34,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098628517] [2023-08-29 16:35:34,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:35:34,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-29 16:35:34,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:35:34,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-29 16:35:34,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-08-29 16:35:35,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 420 [2023-08-29 16:35:35,542 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 708 transitions, 18837 flow. Second operand has 15 states, 15 states have (on average 166.2) internal successors, (2493), 15 states have internal predecessors, (2493), 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 16:35:35,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:35:35,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 420 [2023-08-29 16:35:35,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:40,665 INFO L130 PetriNetUnfolder]: 6944/14448 cut-off events. [2023-08-29 16:35:40,665 INFO L131 PetriNetUnfolder]: For 325113/325167 co-relation queries the response was YES. [2023-08-29 16:35:40,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103663 conditions, 14448 events. 6944/14448 cut-off events. For 325113/325167 co-relation queries the response was YES. Maximal size of possible extension queue 635. Compared 124457 event pairs, 1045 based on Foata normal form. 54/14240 useless extension candidates. Maximal degree in co-relation 103597. Up to 5751 conditions per place. [2023-08-29 16:35:40,809 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 867 selfloop transitions, 284 changer transitions 0/1170 dead transitions. [2023-08-29 16:35:40,809 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 1170 transitions, 29482 flow [2023-08-29 16:35:40,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-29 16:35:40,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-29 16:35:40,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3410 transitions. [2023-08-29 16:35:40,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4273182957393484 [2023-08-29 16:35:40,814 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3410 transitions. [2023-08-29 16:35:40,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3410 transitions. [2023-08-29 16:35:40,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:40,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3410 transitions. [2023-08-29 16:35:40,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 179.47368421052633) internal successors, (3410), 19 states have internal predecessors, (3410), 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 16:35:40,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 420.0) internal successors, (8400), 20 states have internal predecessors, (8400), 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 16:35:40,826 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 420.0) internal successors, (8400), 20 states have internal predecessors, (8400), 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 16:35:40,826 INFO L175 Difference]: Start difference. First operand has 201 places, 708 transitions, 18837 flow. Second operand 19 states and 3410 transitions. [2023-08-29 16:35:40,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 1170 transitions, 29482 flow [2023-08-29 16:35:44,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 1170 transitions, 29323 flow, removed 37 selfloop flow, removed 4 redundant places. [2023-08-29 16:35:44,563 INFO L231 Difference]: Finished difference. Result has 222 places, 798 transitions, 22306 flow [2023-08-29 16:35:44,564 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=18725, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=708, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=194, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=22306, PETRI_PLACES=222, PETRI_TRANSITIONS=798} [2023-08-29 16:35:44,564 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 136 predicate places. [2023-08-29 16:35:44,564 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 798 transitions, 22306 flow [2023-08-29 16:35:44,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 166.2) internal successors, (2493), 15 states have internal predecessors, (2493), 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 16:35:44,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:35:44,565 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:35:44,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 16:35:44,565 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:35:44,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:35:44,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1435585169, now seen corresponding path program 3 times [2023-08-29 16:35:44,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:35:44,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439119334] [2023-08-29 16:35:44,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:35:44,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:35:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:35:45,117 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 16:35:45,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:35:45,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439119334] [2023-08-29 16:35:45,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439119334] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:35:45,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:35:45,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 16:35:45,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180191444] [2023-08-29 16:35:45,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:35:45,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 16:35:45,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:35:45,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 16:35:45,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-29 16:35:46,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 420 [2023-08-29 16:35:46,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 798 transitions, 22306 flow. Second operand has 13 states, 13 states have (on average 171.3846153846154) internal successors, (2228), 13 states have internal predecessors, (2228), 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 16:35:46,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:35:46,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 420 [2023-08-29 16:35:46,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:51,246 INFO L130 PetriNetUnfolder]: 6888/14223 cut-off events. [2023-08-29 16:35:51,246 INFO L131 PetriNetUnfolder]: For 359539/359637 co-relation queries the response was YES. [2023-08-29 16:35:51,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106748 conditions, 14223 events. 6888/14223 cut-off events. For 359539/359637 co-relation queries the response was YES. Maximal size of possible extension queue 638. Compared 121965 event pairs, 851 based on Foata normal form. 76/14055 useless extension candidates. Maximal degree in co-relation 106675. Up to 5711 conditions per place. [2023-08-29 16:35:51,384 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 808 selfloop transitions, 252 changer transitions 0/1079 dead transitions. [2023-08-29 16:35:51,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 1079 transitions, 28092 flow [2023-08-29 16:35:51,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-29 16:35:51,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-29 16:35:51,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3622 transitions. [2023-08-29 16:35:51,387 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4311904761904762 [2023-08-29 16:35:51,387 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3622 transitions. [2023-08-29 16:35:51,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3622 transitions. [2023-08-29 16:35:51,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:51,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3622 transitions. [2023-08-29 16:35:51,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 181.1) internal successors, (3622), 20 states have internal predecessors, (3622), 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 16:35:51,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 420.0) internal successors, (8820), 21 states have internal predecessors, (8820), 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 16:35:51,395 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 420.0) internal successors, (8820), 21 states have internal predecessors, (8820), 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 16:35:51,395 INFO L175 Difference]: Start difference. First operand has 222 places, 798 transitions, 22306 flow. Second operand 20 states and 3622 transitions. [2023-08-29 16:35:51,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 1079 transitions, 28092 flow [2023-08-29 16:35:55,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 1079 transitions, 27932 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-29 16:35:55,367 INFO L231 Difference]: Finished difference. Result has 248 places, 864 transitions, 24272 flow [2023-08-29 16:35:55,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=22196, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=798, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=572, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=24272, PETRI_PLACES=248, PETRI_TRANSITIONS=864} [2023-08-29 16:35:55,367 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 162 predicate places. [2023-08-29 16:35:55,368 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 864 transitions, 24272 flow [2023-08-29 16:35:55,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 171.3846153846154) internal successors, (2228), 13 states have internal predecessors, (2228), 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 16:35:55,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:35:55,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:35:55,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 16:35:55,368 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:35:55,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:35:55,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1968675555, now seen corresponding path program 4 times [2023-08-29 16:35:55,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:35:55,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181833531] [2023-08-29 16:35:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:35:55,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:35:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:35:55,920 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 16:35:55,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:35:55,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181833531] [2023-08-29 16:35:55,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181833531] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:35:55,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:35:55,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 16:35:55,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282970630] [2023-08-29 16:35:55,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:35:55,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 16:35:55,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:35:55,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 16:35:55,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-08-29 16:35:57,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 420 [2023-08-29 16:35:57,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 864 transitions, 24272 flow. Second operand has 13 states, 13 states have (on average 171.3846153846154) internal successors, (2228), 13 states have internal predecessors, (2228), 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 16:35:57,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:35:57,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 420 [2023-08-29 16:35:57,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:36:03,210 INFO L130 PetriNetUnfolder]: 9033/18479 cut-off events. [2023-08-29 16:36:03,210 INFO L131 PetriNetUnfolder]: For 520145/520224 co-relation queries the response was YES. [2023-08-29 16:36:03,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143717 conditions, 18479 events. 9033/18479 cut-off events. For 520145/520224 co-relation queries the response was YES. Maximal size of possible extension queue 823. Compared 163930 event pairs, 1412 based on Foata normal form. 65/18235 useless extension candidates. Maximal degree in co-relation 143631. Up to 7491 conditions per place. [2023-08-29 16:36:03,642 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 888 selfloop transitions, 272 changer transitions 0/1179 dead transitions. [2023-08-29 16:36:03,643 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 1179 transitions, 32988 flow [2023-08-29 16:36:03,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 16:36:03,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 16:36:03,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2377 transitions. [2023-08-29 16:36:03,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43534798534798536 [2023-08-29 16:36:03,656 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2377 transitions. [2023-08-29 16:36:03,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2377 transitions. [2023-08-29 16:36:03,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:36:03,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2377 transitions. [2023-08-29 16:36:03,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 182.84615384615384) internal successors, (2377), 13 states have internal predecessors, (2377), 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 16:36:03,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 420.0) internal successors, (5880), 14 states have internal predecessors, (5880), 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 16:36:03,664 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 420.0) internal successors, (5880), 14 states have internal predecessors, (5880), 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 16:36:03,665 INFO L175 Difference]: Start difference. First operand has 248 places, 864 transitions, 24272 flow. Second operand 13 states and 2377 transitions. [2023-08-29 16:36:03,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 1179 transitions, 32988 flow [2023-08-29 16:36:10,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 1179 transitions, 32741 flow, removed 39 selfloop flow, removed 5 redundant places. [2023-08-29 16:36:10,531 INFO L231 Difference]: Finished difference. Result has 262 places, 941 transitions, 27648 flow [2023-08-29 16:36:10,532 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=24038, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=864, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=610, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=27648, PETRI_PLACES=262, PETRI_TRANSITIONS=941} [2023-08-29 16:36:10,532 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 176 predicate places. [2023-08-29 16:36:10,532 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 941 transitions, 27648 flow [2023-08-29 16:36:10,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 171.3846153846154) internal successors, (2228), 13 states have internal predecessors, (2228), 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 16:36:10,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:36:10,533 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:36:10,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 16:36:10,533 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:36:10,534 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:36:10,534 INFO L85 PathProgramCache]: Analyzing trace with hash -2040344985, now seen corresponding path program 5 times [2023-08-29 16:36:10,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:36:10,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42940739] [2023-08-29 16:36:10,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:36:10,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:36:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:36:10,983 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 16:36:10,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:36:10,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42940739] [2023-08-29 16:36:10,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42940739] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:36:10,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:36:10,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 16:36:10,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920818969] [2023-08-29 16:36:10,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:36:10,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 16:36:10,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:36:10,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 16:36:10,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-29 16:36:11,790 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 420 [2023-08-29 16:36:11,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 941 transitions, 27648 flow. Second operand has 13 states, 13 states have (on average 171.3846153846154) internal successors, (2228), 13 states have internal predecessors, (2228), 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 16:36:11,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:36:11,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 420 [2023-08-29 16:36:11,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:36:19,986 INFO L130 PetriNetUnfolder]: 9291/19188 cut-off events. [2023-08-29 16:36:19,986 INFO L131 PetriNetUnfolder]: For 604954/605041 co-relation queries the response was YES. [2023-08-29 16:36:20,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152564 conditions, 19188 events. 9291/19188 cut-off events. For 604954/605041 co-relation queries the response was YES. Maximal size of possible extension queue 852. Compared 171971 event pairs, 1249 based on Foata normal form. 97/18964 useless extension candidates. Maximal degree in co-relation 152472. Up to 7775 conditions per place. [2023-08-29 16:36:20,200 INFO L137 encePairwiseOnDemand]: 403/420 looper letters, 816 selfloop transitions, 469 changer transitions 0/1304 dead transitions. [2023-08-29 16:36:20,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 1304 transitions, 35765 flow [2023-08-29 16:36:20,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-29 16:36:20,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-29 16:36:20,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4202 transitions. [2023-08-29 16:36:20,207 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4349896480331263 [2023-08-29 16:36:20,207 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4202 transitions. [2023-08-29 16:36:20,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4202 transitions. [2023-08-29 16:36:20,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:36:20,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4202 transitions. [2023-08-29 16:36:20,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 182.69565217391303) internal successors, (4202), 23 states have internal predecessors, (4202), 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 16:36:20,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 420.0) internal successors, (10080), 24 states have internal predecessors, (10080), 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 16:36:20,221 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 420.0) internal successors, (10080), 24 states have internal predecessors, (10080), 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 16:36:20,221 INFO L175 Difference]: Start difference. First operand has 262 places, 941 transitions, 27648 flow. Second operand 23 states and 4202 transitions. [2023-08-29 16:36:20,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 1304 transitions, 35765 flow [2023-08-29 16:36:27,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 1304 transitions, 35597 flow, removed 37 selfloop flow, removed 5 redundant places. [2023-08-29 16:36:27,777 INFO L231 Difference]: Finished difference. Result has 297 places, 1075 transitions, 32725 flow [2023-08-29 16:36:27,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=27498, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=336, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=32725, PETRI_PLACES=297, PETRI_TRANSITIONS=1075} [2023-08-29 16:36:27,779 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 211 predicate places. [2023-08-29 16:36:27,779 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 1075 transitions, 32725 flow [2023-08-29 16:36:27,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 171.3846153846154) internal successors, (2228), 13 states have internal predecessors, (2228), 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 16:36:27,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:36:27,780 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:36:27,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 16:36:27,780 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:36:27,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:36:27,781 INFO L85 PathProgramCache]: Analyzing trace with hash 203878179, now seen corresponding path program 6 times [2023-08-29 16:36:27,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:36:27,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564039892] [2023-08-29 16:36:27,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:36:27,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:36:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:36:29,142 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 16:36:29,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:36:29,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564039892] [2023-08-29 16:36:29,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564039892] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:36:29,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:36:29,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 16:36:29,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838071710] [2023-08-29 16:36:29,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:36:29,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 16:36:29,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:36:29,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 16:36:29,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-08-29 16:36:30,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 420 [2023-08-29 16:36:30,265 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 1075 transitions, 32725 flow. Second operand has 13 states, 13 states have (on average 171.3846153846154) internal successors, (2228), 13 states have internal predecessors, (2228), 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 16:36:30,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:36:30,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 420 [2023-08-29 16:36:30,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:36:39,616 INFO L130 PetriNetUnfolder]: 10157/20296 cut-off events. [2023-08-29 16:36:39,617 INFO L131 PetriNetUnfolder]: For 744594/744687 co-relation queries the response was YES. [2023-08-29 16:36:39,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173521 conditions, 20296 events. 10157/20296 cut-off events. For 744594/744687 co-relation queries the response was YES. Maximal size of possible extension queue 966. Compared 179654 event pairs, 1935 based on Foata normal form. 51/20069 useless extension candidates. Maximal degree in co-relation 173411. Up to 11130 conditions per place. [2023-08-29 16:36:39,879 INFO L137 encePairwiseOnDemand]: 403/420 looper letters, 528 selfloop transitions, 906 changer transitions 0/1453 dead transitions. [2023-08-29 16:36:39,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 1453 transitions, 44085 flow [2023-08-29 16:36:39,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 16:36:39,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 16:36:39,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3248 transitions. [2023-08-29 16:36:39,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42962962962962964 [2023-08-29 16:36:39,883 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3248 transitions. [2023-08-29 16:36:39,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3248 transitions. [2023-08-29 16:36:39,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:36:39,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3248 transitions. [2023-08-29 16:36:39,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 180.44444444444446) internal successors, (3248), 18 states have internal predecessors, (3248), 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 16:36:39,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 420.0) internal successors, (7980), 19 states have internal predecessors, (7980), 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 16:36:39,893 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 420.0) internal successors, (7980), 19 states have internal predecessors, (7980), 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 16:36:39,894 INFO L175 Difference]: Start difference. First operand has 297 places, 1075 transitions, 32725 flow. Second operand 18 states and 3248 transitions. [2023-08-29 16:36:39,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 1453 transitions, 44085 flow [2023-08-29 16:36:48,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 1453 transitions, 43471 flow, removed 303 selfloop flow, removed 3 redundant places. [2023-08-29 16:36:48,769 INFO L231 Difference]: Finished difference. Result has 319 places, 1336 transitions, 43141 flow [2023-08-29 16:36:48,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=32335, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1075, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=685, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=43141, PETRI_PLACES=319, PETRI_TRANSITIONS=1336} [2023-08-29 16:36:48,770 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 233 predicate places. [2023-08-29 16:36:48,770 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 1336 transitions, 43141 flow [2023-08-29 16:36:48,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 171.3846153846154) internal successors, (2228), 13 states have internal predecessors, (2228), 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 16:36:48,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:36:48,771 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:36:48,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 16:36:48,771 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:36:48,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:36:48,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1112240849, now seen corresponding path program 7 times [2023-08-29 16:36:48,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:36:48,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69846037] [2023-08-29 16:36:48,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:36:48,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:36:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:36:49,241 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 16:36:49,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:36:49,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69846037] [2023-08-29 16:36:49,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69846037] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:36:49,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:36:49,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 16:36:49,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911940049] [2023-08-29 16:36:49,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:36:49,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 16:36:49,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:36:49,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 16:36:49,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-29 16:36:50,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 420 [2023-08-29 16:36:50,166 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 1336 transitions, 43141 flow. Second operand has 13 states, 13 states have (on average 171.3846153846154) internal successors, (2228), 13 states have internal predecessors, (2228), 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 16:36:50,167 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:36:50,167 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 420 [2023-08-29 16:36:50,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:37:00,505 INFO L130 PetriNetUnfolder]: 11034/22680 cut-off events. [2023-08-29 16:37:00,505 INFO L131 PetriNetUnfolder]: For 932100/932141 co-relation queries the response was YES. [2023-08-29 16:37:00,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199713 conditions, 22680 events. 11034/22680 cut-off events. For 932100/932141 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 208573 event pairs, 2041 based on Foata normal form. 55/22340 useless extension candidates. Maximal degree in co-relation 199595. Up to 9463 conditions per place. [2023-08-29 16:37:00,815 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 984 selfloop transitions, 659 changer transitions 0/1662 dead transitions. [2023-08-29 16:37:00,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 1662 transitions, 53423 flow [2023-08-29 16:37:00,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 16:37:00,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 16:37:00,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3256 transitions. [2023-08-29 16:37:00,818 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4306878306878307 [2023-08-29 16:37:00,818 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3256 transitions. [2023-08-29 16:37:00,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3256 transitions. [2023-08-29 16:37:00,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:37:00,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3256 transitions. [2023-08-29 16:37:00,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 180.88888888888889) internal successors, (3256), 18 states have internal predecessors, (3256), 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 16:37:00,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 420.0) internal successors, (7980), 19 states have internal predecessors, (7980), 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 16:37:00,828 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 420.0) internal successors, (7980), 19 states have internal predecessors, (7980), 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 16:37:00,828 INFO L175 Difference]: Start difference. First operand has 319 places, 1336 transitions, 43141 flow. Second operand 18 states and 3256 transitions. [2023-08-29 16:37:00,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 1662 transitions, 53423 flow [2023-08-29 16:37:13,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 1662 transitions, 53155 flow, removed 130 selfloop flow, removed 3 redundant places. [2023-08-29 16:37:13,411 INFO L231 Difference]: Finished difference. Result has 339 places, 1495 transitions, 50059 flow [2023-08-29 16:37:13,413 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=42909, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=511, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=716, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=50059, PETRI_PLACES=339, PETRI_TRANSITIONS=1495} [2023-08-29 16:37:13,413 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 253 predicate places. [2023-08-29 16:37:13,413 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 1495 transitions, 50059 flow [2023-08-29 16:37:13,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 171.3846153846154) internal successors, (2228), 13 states have internal predecessors, (2228), 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 16:37:13,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:37:13,414 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:37:13,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 16:37:13,414 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:37:13,415 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:37:13,415 INFO L85 PathProgramCache]: Analyzing trace with hash 725574571, now seen corresponding path program 8 times [2023-08-29 16:37:13,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:37:13,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842478507] [2023-08-29 16:37:13,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:37:13,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:37:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:37:13,838 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 16:37:13,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:37:13,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842478507] [2023-08-29 16:37:13,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842478507] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:37:13,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:37:13,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 16:37:13,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432948255] [2023-08-29 16:37:13,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:37:13,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 16:37:13,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:37:13,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 16:37:13,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-08-29 16:37:14,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 420 [2023-08-29 16:37:14,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 1495 transitions, 50059 flow. Second operand has 13 states, 13 states have (on average 171.3846153846154) internal successors, (2228), 13 states have internal predecessors, (2228), 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 16:37:14,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:37:14,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 420 [2023-08-29 16:37:14,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:37:26,382 INFO L130 PetriNetUnfolder]: 11296/23753 cut-off events. [2023-08-29 16:37:26,382 INFO L131 PetriNetUnfolder]: For 1042507/1042566 co-relation queries the response was YES. [2023-08-29 16:37:26,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211380 conditions, 23753 events. 11296/23753 cut-off events. For 1042507/1042566 co-relation queries the response was YES. Maximal size of possible extension queue 1084. Compared 224888 event pairs, 2289 based on Foata normal form. 75/23380 useless extension candidates. Maximal degree in co-relation 211256. Up to 9845 conditions per place. [2023-08-29 16:37:26,686 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 870 selfloop transitions, 820 changer transitions 0/1709 dead transitions. [2023-08-29 16:37:26,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 1709 transitions, 57260 flow [2023-08-29 16:37:26,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-29 16:37:26,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-29 16:37:26,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3604 transitions. [2023-08-29 16:37:26,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42904761904761907 [2023-08-29 16:37:26,690 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3604 transitions. [2023-08-29 16:37:26,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3604 transitions. [2023-08-29 16:37:26,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:37:26,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3604 transitions. [2023-08-29 16:37:26,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 180.2) internal successors, (3604), 20 states have internal predecessors, (3604), 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 16:37:26,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 420.0) internal successors, (8820), 21 states have internal predecessors, (8820), 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 16:37:26,700 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 420.0) internal successors, (8820), 21 states have internal predecessors, (8820), 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 16:37:26,700 INFO L175 Difference]: Start difference. First operand has 339 places, 1495 transitions, 50059 flow. Second operand 20 states and 3604 transitions. [2023-08-29 16:37:26,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 1709 transitions, 57260 flow [2023-08-29 16:37:42,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 1709 transitions, 56806 flow, removed 138 selfloop flow, removed 7 redundant places. [2023-08-29 16:37:42,623 INFO L231 Difference]: Finished difference. Result has 356 places, 1595 transitions, 55069 flow [2023-08-29 16:37:42,625 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=49615, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=720, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=702, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=55069, PETRI_PLACES=356, PETRI_TRANSITIONS=1595} [2023-08-29 16:37:42,625 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 270 predicate places. [2023-08-29 16:37:42,625 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 1595 transitions, 55069 flow [2023-08-29 16:37:42,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 171.3846153846154) internal successors, (2228), 13 states have internal predecessors, (2228), 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 16:37:42,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:37:42,626 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:37:42,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 16:37:42,626 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:37:42,627 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:37:42,627 INFO L85 PathProgramCache]: Analyzing trace with hash -797219638, now seen corresponding path program 1 times [2023-08-29 16:37:42,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:37:42,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791839307] [2023-08-29 16:37:42,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:37:42,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:37:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:37:42,818 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 16:37:42,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:37:42,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791839307] [2023-08-29 16:37:42,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791839307] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:37:42,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:37:42,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 16:37:42,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414899058] [2023-08-29 16:37:42,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:37:42,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 16:37:42,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:37:42,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 16:37:42,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 16:37:43,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 420 [2023-08-29 16:37:43,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 1595 transitions, 55069 flow. Second operand has 6 states, 6 states have (on average 173.5) internal successors, (1041), 6 states have internal predecessors, (1041), 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 16:37:43,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:37:43,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 420 [2023-08-29 16:37:43,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:37:52,927 INFO L130 PetriNetUnfolder]: 7908/19728 cut-off events. [2023-08-29 16:37:52,927 INFO L131 PetriNetUnfolder]: For 762473/764857 co-relation queries the response was YES. [2023-08-29 16:37:53,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177217 conditions, 19728 events. 7908/19728 cut-off events. For 762473/764857 co-relation queries the response was YES. Maximal size of possible extension queue 1112. Compared 210682 event pairs, 3446 based on Foata normal form. 76/18882 useless extension candidates. Maximal degree in co-relation 177091. Up to 13664 conditions per place. [2023-08-29 16:37:53,204 INFO L137 encePairwiseOnDemand]: 415/420 looper letters, 1125 selfloop transitions, 4 changer transitions 0/1594 dead transitions. [2023-08-29 16:37:53,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 1594 transitions, 57325 flow [2023-08-29 16:37:53,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 16:37:53,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 16:37:53,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1067 transitions. [2023-08-29 16:37:53,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4234126984126984 [2023-08-29 16:37:53,206 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1067 transitions. [2023-08-29 16:37:53,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1067 transitions. [2023-08-29 16:37:53,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:37:53,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1067 transitions. [2023-08-29 16:37:53,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.83333333333334) internal successors, (1067), 6 states have internal predecessors, (1067), 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 16:37:53,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 420.0) internal successors, (2940), 7 states have internal predecessors, (2940), 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 16:37:53,209 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 420.0) internal successors, (2940), 7 states have internal predecessors, (2940), 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 16:37:53,209 INFO L175 Difference]: Start difference. First operand has 356 places, 1595 transitions, 55069 flow. Second operand 6 states and 1067 transitions. [2023-08-29 16:37:53,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 1594 transitions, 57325 flow [2023-08-29 16:38:04,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 1594 transitions, 56684 flow, removed 134 selfloop flow, removed 6 redundant places. [2023-08-29 16:38:04,130 INFO L231 Difference]: Finished difference. Result has 354 places, 1594 transitions, 54434 flow [2023-08-29 16:38:04,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=54426, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1594, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=54434, PETRI_PLACES=354, PETRI_TRANSITIONS=1594} [2023-08-29 16:38:04,132 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 268 predicate places. [2023-08-29 16:38:04,132 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 1594 transitions, 54434 flow [2023-08-29 16:38:04,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.5) internal successors, (1041), 6 states have internal predecessors, (1041), 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 16:38:04,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:38:04,132 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:38:04,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 16:38:04,132 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:38:04,133 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:38:04,133 INFO L85 PathProgramCache]: Analyzing trace with hash 279725888, now seen corresponding path program 1 times [2023-08-29 16:38:04,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:38:04,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26722437] [2023-08-29 16:38:04,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:38:04,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:38:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:38:04,383 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 16:38:04,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:38:04,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26722437] [2023-08-29 16:38:04,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26722437] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:38:04,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:38:04,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 16:38:04,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816046256] [2023-08-29 16:38:04,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:38:04,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 16:38:04,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:38:04,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 16:38:04,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 16:38:04,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 420 [2023-08-29 16:38:04,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 1594 transitions, 54434 flow. Second operand has 6 states, 6 states have (on average 173.66666666666666) internal successors, (1042), 6 states have internal predecessors, (1042), 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 16:38:04,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:38:04,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 420 [2023-08-29 16:38:04,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:38:13,723 INFO L130 PetriNetUnfolder]: 7900/19728 cut-off events. [2023-08-29 16:38:13,723 INFO L131 PetriNetUnfolder]: For 748559/750825 co-relation queries the response was YES. [2023-08-29 16:38:13,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175763 conditions, 19728 events. 7900/19728 cut-off events. For 748559/750825 co-relation queries the response was YES. Maximal size of possible extension queue 1107. Compared 211014 event pairs, 3452 based on Foata normal form. 91/18905 useless extension candidates. Maximal degree in co-relation 175637. Up to 13665 conditions per place. [2023-08-29 16:38:14,026 INFO L137 encePairwiseOnDemand]: 413/420 looper letters, 1049 selfloop transitions, 0 changer transitions 90/1595 dead transitions. [2023-08-29 16:38:14,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 1595 transitions, 56697 flow [2023-08-29 16:38:14,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 16:38:14,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 16:38:14,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1068 transitions. [2023-08-29 16:38:14,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4238095238095238 [2023-08-29 16:38:14,028 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1068 transitions. [2023-08-29 16:38:14,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1068 transitions. [2023-08-29 16:38:14,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:38:14,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1068 transitions. [2023-08-29 16:38:14,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 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 16:38:14,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 420.0) internal successors, (2940), 7 states have internal predecessors, (2940), 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 16:38:14,030 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 420.0) internal successors, (2940), 7 states have internal predecessors, (2940), 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 16:38:14,030 INFO L175 Difference]: Start difference. First operand has 354 places, 1594 transitions, 54434 flow. Second operand 6 states and 1068 transitions. [2023-08-29 16:38:14,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 1595 transitions, 56697 flow [2023-08-29 16:38:24,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 1595 transitions, 56690 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 16:38:24,323 INFO L231 Difference]: Finished difference. Result has 354 places, 1505 transitions, 51771 flow [2023-08-29 16:38:24,324 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=54425, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1593, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1593, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=51771, PETRI_PLACES=354, PETRI_TRANSITIONS=1505} [2023-08-29 16:38:24,324 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 268 predicate places. [2023-08-29 16:38:24,324 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 1505 transitions, 51771 flow [2023-08-29 16:38:24,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.66666666666666) internal successors, (1042), 6 states have internal predecessors, (1042), 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 16:38:24,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:38:24,325 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:38:24,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-29 16:38:24,325 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:38:24,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:38:24,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1412978504, now seen corresponding path program 1 times [2023-08-29 16:38:24,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:38:24,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12274125] [2023-08-29 16:38:24,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:38:24,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:38:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:38:24,787 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 16:38:24,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:38:24,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12274125] [2023-08-29 16:38:24,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12274125] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:38:24,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:38:24,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 16:38:24,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596909802] [2023-08-29 16:38:24,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:38:24,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 16:38:24,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:38:24,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 16:38:24,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 16:38:25,072 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 420 [2023-08-29 16:38:25,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 1505 transitions, 51771 flow. Second operand has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 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 16:38:25,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:38:25,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 420 [2023-08-29 16:38:25,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:38:36,504 INFO L130 PetriNetUnfolder]: 10303/22245 cut-off events. [2023-08-29 16:38:36,504 INFO L131 PetriNetUnfolder]: For 848732/850998 co-relation queries the response was YES. [2023-08-29 16:38:36,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198607 conditions, 22245 events. 10303/22245 cut-off events. For 848732/850998 co-relation queries the response was YES. Maximal size of possible extension queue 1106. Compared 221344 event pairs, 3550 based on Foata normal form. 72/21703 useless extension candidates. Maximal degree in co-relation 198481. Up to 15700 conditions per place. [2023-08-29 16:38:36,830 INFO L137 encePairwiseOnDemand]: 412/420 looper letters, 840 selfloop transitions, 252 changer transitions 302/1801 dead transitions. [2023-08-29 16:38:36,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 1801 transitions, 65149 flow [2023-08-29 16:38:36,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 16:38:36,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 16:38:36,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1109 transitions. [2023-08-29 16:38:36,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44007936507936507 [2023-08-29 16:38:36,831 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1109 transitions. [2023-08-29 16:38:36,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1109 transitions. [2023-08-29 16:38:36,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:38:36,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1109 transitions. [2023-08-29 16:38:36,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.83333333333334) internal successors, (1109), 6 states have internal predecessors, (1109), 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 16:38:36,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 420.0) internal successors, (2940), 7 states have internal predecessors, (2940), 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 16:38:36,835 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 420.0) internal successors, (2940), 7 states have internal predecessors, (2940), 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 16:38:36,835 INFO L175 Difference]: Start difference. First operand has 354 places, 1505 transitions, 51771 flow. Second operand 6 states and 1109 transitions. [2023-08-29 16:38:36,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 1801 transitions, 65149 flow [2023-08-29 16:38:47,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 1801 transitions, 63973 flow, removed 52 selfloop flow, removed 6 redundant places. [2023-08-29 16:38:47,988 INFO L231 Difference]: Finished difference. Result has 327 places, 1459 transitions, 51437 flow [2023-08-29 16:38:47,989 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=50807, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=51437, PETRI_PLACES=327, PETRI_TRANSITIONS=1459} [2023-08-29 16:38:47,989 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 241 predicate places. [2023-08-29 16:38:47,990 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 1459 transitions, 51437 flow [2023-08-29 16:38:47,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 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 16:38:47,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:38:47,990 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:38:47,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-29 16:38:47,990 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:38:47,991 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:38:47,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1076833791, now seen corresponding path program 1 times [2023-08-29 16:38:47,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:38:47,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194630584] [2023-08-29 16:38:47,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:38:47,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:38:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:38:48,506 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 16:38:48,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:38:48,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194630584] [2023-08-29 16:38:48,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194630584] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:38:48,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:38:48,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 16:38:48,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727358212] [2023-08-29 16:38:48,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:38:48,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 16:38:48,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:38:48,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 16:38:48,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 16:38:49,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 420 [2023-08-29 16:38:49,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 1459 transitions, 51437 flow. Second operand has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 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 16:38:49,076 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:38:49,076 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 420 [2023-08-29 16:38:49,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:38:58,113 INFO L130 PetriNetUnfolder]: 7792/17946 cut-off events. [2023-08-29 16:38:58,114 INFO L131 PetriNetUnfolder]: For 635620/637793 co-relation queries the response was YES. [2023-08-29 16:38:58,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156632 conditions, 17946 events. 7792/17946 cut-off events. For 635620/637793 co-relation queries the response was YES. Maximal size of possible extension queue 960. Compared 182866 event pairs, 2170 based on Foata normal form. 223/17730 useless extension candidates. Maximal degree in co-relation 156507. Up to 11361 conditions per place. [2023-08-29 16:38:58,315 INFO L137 encePairwiseOnDemand]: 412/420 looper letters, 132 selfloop transitions, 12 changer transitions 1364/1556 dead transitions. [2023-08-29 16:38:58,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 1556 transitions, 55847 flow [2023-08-29 16:38:58,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 16:38:58,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 16:38:58,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1617 transitions. [2023-08-29 16:38:58,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42777777777777776 [2023-08-29 16:38:58,317 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1617 transitions. [2023-08-29 16:38:58,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1617 transitions. [2023-08-29 16:38:58,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:38:58,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1617 transitions. [2023-08-29 16:38:58,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 179.66666666666666) internal successors, (1617), 9 states have internal predecessors, (1617), 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 16:38:58,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 420.0) internal successors, (4200), 10 states have internal predecessors, (4200), 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 16:38:58,320 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 420.0) internal successors, (4200), 10 states have internal predecessors, (4200), 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 16:38:58,320 INFO L175 Difference]: Start difference. First operand has 327 places, 1459 transitions, 51437 flow. Second operand 9 states and 1617 transitions. [2023-08-29 16:38:58,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 1556 transitions, 55847 flow [2023-08-29 16:39:05,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 1556 transitions, 55743 flow, removed 52 selfloop flow, removed 0 redundant places. [2023-08-29 16:39:05,722 INFO L231 Difference]: Finished difference. Result has 339 places, 187 transitions, 5166 flow [2023-08-29 16:39:05,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=51349, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5166, PETRI_PLACES=339, PETRI_TRANSITIONS=187} [2023-08-29 16:39:05,723 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 253 predicate places. [2023-08-29 16:39:05,723 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 187 transitions, 5166 flow [2023-08-29 16:39:05,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 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 16:39:05,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:39:05,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:39:05,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-29 16:39:05,724 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:39:05,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:39:05,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1885381699, now seen corresponding path program 2 times [2023-08-29 16:39:05,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:39:05,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641112415] [2023-08-29 16:39:05,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:39:05,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:39:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:39:06,213 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 16:39:06,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:39:06,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641112415] [2023-08-29 16:39:06,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641112415] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:39:06,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:39:06,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 16:39:06,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988707414] [2023-08-29 16:39:06,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:39:06,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 16:39:06,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:39:06,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 16:39:06,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 16:39:06,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 420 [2023-08-29 16:39:06,724 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 187 transitions, 5166 flow. Second operand has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 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 16:39:06,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:39:06,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 420 [2023-08-29 16:39:06,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:39:07,162 INFO L130 PetriNetUnfolder]: 332/1049 cut-off events. [2023-08-29 16:39:07,162 INFO L131 PetriNetUnfolder]: For 36663/36698 co-relation queries the response was YES. [2023-08-29 16:39:07,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8776 conditions, 1049 events. 332/1049 cut-off events. For 36663/36698 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6663 event pairs, 119 based on Foata normal form. 36/1074 useless extension candidates. Maximal degree in co-relation 8645. Up to 740 conditions per place. [2023-08-29 16:39:07,172 INFO L137 encePairwiseOnDemand]: 411/420 looper letters, 104 selfloop transitions, 55 changer transitions 36/243 dead transitions. [2023-08-29 16:39:07,172 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 243 transitions, 7192 flow [2023-08-29 16:39:07,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 16:39:07,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 16:39:07,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1595 transitions. [2023-08-29 16:39:07,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.421957671957672 [2023-08-29 16:39:07,174 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1595 transitions. [2023-08-29 16:39:07,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1595 transitions. [2023-08-29 16:39:07,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:39:07,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1595 transitions. [2023-08-29 16:39:07,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 177.22222222222223) internal successors, (1595), 9 states have internal predecessors, (1595), 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 16:39:07,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 420.0) internal successors, (4200), 10 states have internal predecessors, (4200), 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 16:39:07,177 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 420.0) internal successors, (4200), 10 states have internal predecessors, (4200), 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 16:39:07,177 INFO L175 Difference]: Start difference. First operand has 339 places, 187 transitions, 5166 flow. Second operand 9 states and 1595 transitions. [2023-08-29 16:39:07,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 243 transitions, 7192 flow [2023-08-29 16:39:07,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 243 transitions, 4700 flow, removed 242 selfloop flow, removed 87 redundant places. [2023-08-29 16:39:07,249 INFO L231 Difference]: Finished difference. Result has 211 places, 187 transitions, 3421 flow [2023-08-29 16:39:07,249 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=3278, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3421, PETRI_PLACES=211, PETRI_TRANSITIONS=187} [2023-08-29 16:39:07,250 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 125 predicate places. [2023-08-29 16:39:07,250 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 187 transitions, 3421 flow [2023-08-29 16:39:07,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 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 16:39:07,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:39:07,251 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:39:07,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-29 16:39:07,251 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:39:07,251 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:39:07,251 INFO L85 PathProgramCache]: Analyzing trace with hash 805217665, now seen corresponding path program 3 times [2023-08-29 16:39:07,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:39:07,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777267280] [2023-08-29 16:39:07,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:39:07,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:39:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:39:07,791 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 16:39:07,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:39:07,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777267280] [2023-08-29 16:39:07,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777267280] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:39:07,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:39:07,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 16:39:07,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566161156] [2023-08-29 16:39:07,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:39:07,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 16:39:07,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:39:07,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 16:39:07,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 16:39:08,502 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 420 [2023-08-29 16:39:08,503 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 187 transitions, 3421 flow. Second operand has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 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 16:39:08,503 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:39:08,503 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 420 [2023-08-29 16:39:08,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:39:08,942 INFO L130 PetriNetUnfolder]: 399/1217 cut-off events. [2023-08-29 16:39:08,942 INFO L131 PetriNetUnfolder]: For 13426/13451 co-relation queries the response was YES. [2023-08-29 16:39:08,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7336 conditions, 1217 events. 399/1217 cut-off events. For 13426/13451 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 8039 event pairs, 119 based on Foata normal form. 36/1242 useless extension candidates. Maximal degree in co-relation 7262. Up to 412 conditions per place. [2023-08-29 16:39:08,951 INFO L137 encePairwiseOnDemand]: 412/420 looper letters, 116 selfloop transitions, 13 changer transitions 82/259 dead transitions. [2023-08-29 16:39:08,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 259 transitions, 5092 flow [2023-08-29 16:39:08,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 16:39:08,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 16:39:08,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1599 transitions. [2023-08-29 16:39:08,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.423015873015873 [2023-08-29 16:39:08,953 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1599 transitions. [2023-08-29 16:39:08,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1599 transitions. [2023-08-29 16:39:08,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:39:08,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1599 transitions. [2023-08-29 16:39:08,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 177.66666666666666) internal successors, (1599), 9 states have internal predecessors, (1599), 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 16:39:08,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 420.0) internal successors, (4200), 10 states have internal predecessors, (4200), 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 16:39:08,957 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 420.0) internal successors, (4200), 10 states have internal predecessors, (4200), 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 16:39:08,957 INFO L175 Difference]: Start difference. First operand has 211 places, 187 transitions, 3421 flow. Second operand 9 states and 1599 transitions. [2023-08-29 16:39:08,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 259 transitions, 5092 flow [2023-08-29 16:39:08,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 259 transitions, 4796 flow, removed 1 selfloop flow, removed 9 redundant places. [2023-08-29 16:39:08,994 INFO L231 Difference]: Finished difference. Result has 213 places, 174 transitions, 3022 flow [2023-08-29 16:39:08,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=3243, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3022, PETRI_PLACES=213, PETRI_TRANSITIONS=174} [2023-08-29 16:39:08,995 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 127 predicate places. [2023-08-29 16:39:08,995 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 174 transitions, 3022 flow [2023-08-29 16:39:08,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 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 16:39:08,996 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:39:08,996 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:39:08,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-29 16:39:08,996 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:39:08,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:39:08,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1697299609, now seen corresponding path program 4 times [2023-08-29 16:39:08,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:39:08,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504152996] [2023-08-29 16:39:08,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:39:08,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:39:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:39:09,474 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 16:39:09,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:39:09,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504152996] [2023-08-29 16:39:09,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504152996] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:39:09,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:39:09,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 16:39:09,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335478979] [2023-08-29 16:39:09,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:39:09,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 16:39:09,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:39:09,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 16:39:09,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 16:39:10,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 420 [2023-08-29 16:39:10,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 174 transitions, 3022 flow. Second operand has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 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 16:39:10,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:39:10,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 420 [2023-08-29 16:39:10,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:39:10,743 INFO L130 PetriNetUnfolder]: 242/882 cut-off events. [2023-08-29 16:39:10,743 INFO L131 PetriNetUnfolder]: For 9530/9543 co-relation queries the response was YES. [2023-08-29 16:39:10,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5063 conditions, 882 events. 242/882 cut-off events. For 9530/9543 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5682 event pairs, 57 based on Foata normal form. 36/917 useless extension candidates. Maximal degree in co-relation 4986. Up to 510 conditions per place. [2023-08-29 16:39:10,749 INFO L137 encePairwiseOnDemand]: 411/420 looper letters, 85 selfloop transitions, 43 changer transitions 56/232 dead transitions. [2023-08-29 16:39:10,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 232 transitions, 4457 flow [2023-08-29 16:39:10,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:39:10,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:39:10,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1768 transitions. [2023-08-29 16:39:10,750 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42095238095238097 [2023-08-29 16:39:10,750 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1768 transitions. [2023-08-29 16:39:10,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1768 transitions. [2023-08-29 16:39:10,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:39:10,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1768 transitions. [2023-08-29 16:39:10,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 176.8) internal successors, (1768), 10 states have internal predecessors, (1768), 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 16:39:10,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:39:10,754 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 420.0) internal successors, (4620), 11 states have internal predecessors, (4620), 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 16:39:10,754 INFO L175 Difference]: Start difference. First operand has 213 places, 174 transitions, 3022 flow. Second operand 10 states and 1768 transitions. [2023-08-29 16:39:10,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 232 transitions, 4457 flow [2023-08-29 16:39:10,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 232 transitions, 4379 flow, removed 20 selfloop flow, removed 9 redundant places. [2023-08-29 16:39:10,777 INFO L231 Difference]: Finished difference. Result has 213 places, 174 transitions, 3104 flow [2023-08-29 16:39:10,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=2982, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3104, PETRI_PLACES=213, PETRI_TRANSITIONS=174} [2023-08-29 16:39:10,777 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 127 predicate places. [2023-08-29 16:39:10,777 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 174 transitions, 3104 flow [2023-08-29 16:39:10,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 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 16:39:10,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:39:10,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:39:10,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-29 16:39:10,778 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:39:10,778 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:39:10,778 INFO L85 PathProgramCache]: Analyzing trace with hash 2052110419, now seen corresponding path program 5 times [2023-08-29 16:39:10,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:39:10,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305668565] [2023-08-29 16:39:10,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:39:10,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:39:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:39:11,326 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 16:39:11,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:39:11,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305668565] [2023-08-29 16:39:11,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305668565] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:39:11,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:39:11,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 16:39:11,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556602083] [2023-08-29 16:39:11,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:39:11,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 16:39:11,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:39:11,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 16:39:11,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 16:39:12,072 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 420 [2023-08-29 16:39:12,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 174 transitions, 3104 flow. Second operand has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 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 16:39:12,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:39:12,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 420 [2023-08-29 16:39:12,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:39:12,366 INFO L130 PetriNetUnfolder]: 171/677 cut-off events. [2023-08-29 16:39:12,366 INFO L131 PetriNetUnfolder]: For 7299/7312 co-relation queries the response was YES. [2023-08-29 16:39:12,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4019 conditions, 677 events. 171/677 cut-off events. For 7299/7312 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4061 event pairs, 30 based on Foata normal form. 36/712 useless extension candidates. Maximal degree in co-relation 3944. Up to 255 conditions per place. [2023-08-29 16:39:12,369 INFO L137 encePairwiseOnDemand]: 412/420 looper letters, 0 selfloop transitions, 0 changer transitions 198/198 dead transitions. [2023-08-29 16:39:12,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 198 transitions, 3704 flow [2023-08-29 16:39:12,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 16:39:12,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 16:39:12,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1591 transitions. [2023-08-29 16:39:12,371 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4208994708994709 [2023-08-29 16:39:12,371 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1591 transitions. [2023-08-29 16:39:12,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1591 transitions. [2023-08-29 16:39:12,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:39:12,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1591 transitions. [2023-08-29 16:39:12,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 176.77777777777777) internal successors, (1591), 9 states have internal predecessors, (1591), 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 16:39:12,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 420.0) internal successors, (4200), 10 states have internal predecessors, (4200), 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 16:39:12,376 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 420.0) internal successors, (4200), 10 states have internal predecessors, (4200), 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 16:39:12,376 INFO L175 Difference]: Start difference. First operand has 213 places, 174 transitions, 3104 flow. Second operand 9 states and 1591 transitions. [2023-08-29 16:39:12,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 198 transitions, 3704 flow [2023-08-29 16:39:12,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 198 transitions, 3598 flow, removed 1 selfloop flow, removed 9 redundant places. [2023-08-29 16:39:12,405 INFO L231 Difference]: Finished difference. Result has 209 places, 0 transitions, 0 flow [2023-08-29 16:39:12,405 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=2997, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=209, PETRI_TRANSITIONS=0} [2023-08-29 16:39:12,406 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 123 predicate places. [2023-08-29 16:39:12,406 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 0 transitions, 0 flow [2023-08-29 16:39:12,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 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 16:39:12,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 25 remaining) [2023-08-29 16:39:12,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-08-29 16:39:12,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-08-29 16:39:12,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-08-29 16:39:12,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-08-29 16:39:12,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-08-29 16:39:12,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-08-29 16:39:12,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-08-29 16:39:12,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-08-29 16:39:12,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-08-29 16:39:12,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-08-29 16:39:12,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-08-29 16:39:12,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-08-29 16:39:12,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-08-29 16:39:12,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2023-08-29 16:39:12,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 25 remaining) [2023-08-29 16:39:12,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2023-08-29 16:39:12,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2023-08-29 16:39:12,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-08-29 16:39:12,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-08-29 16:39:12,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-08-29 16:39:12,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-08-29 16:39:12,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-08-29 16:39:12,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-08-29 16:39:12,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-08-29 16:39:12,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-29 16:39:12,412 INFO L445 BasicCegarLoop]: Path program histogram: [8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:39:12,416 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 16:39:12,416 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 16:39:12,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:39:12 BasicIcfg [2023-08-29 16:39:12,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 16:39:12,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 16:39:12,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 16:39:12,419 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 16:39:12,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:33:57" (3/4) ... [2023-08-29 16:39:12,421 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 16:39:12,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2023-08-29 16:39:12,433 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 66 nodes and edges [2023-08-29 16:39:12,433 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-29 16:39:12,434 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-08-29 16:39:12,434 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 16:39:12,484 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 16:39:12,485 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 16:39:12,485 INFO L158 Benchmark]: Toolchain (without parser) took 316529.00ms. Allocated memory was 75.5MB in the beginning and 6.9GB in the end (delta: 6.8GB). Free memory was 49.2MB in the beginning and 4.5GB in the end (delta: -4.4GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2023-08-29 16:39:12,485 INFO L158 Benchmark]: CDTParser took 0.85ms. Allocated memory is still 60.8MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 16:39:12,485 INFO L158 Benchmark]: CACSL2BoogieTranslator took 813.01ms. Allocated memory is still 75.5MB. Free memory was 49.2MB in the beginning and 35.8MB in the end (delta: 13.4MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-08-29 16:39:12,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.63ms. Allocated memory is still 75.5MB. Free memory was 35.8MB in the beginning and 31.4MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 16:39:12,486 INFO L158 Benchmark]: Boogie Preprocessor took 96.90ms. Allocated memory is still 75.5MB. Free memory was 31.4MB in the beginning and 27.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 16:39:12,486 INFO L158 Benchmark]: RCFGBuilder took 976.36ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 27.2MB in the beginning and 59.5MB in the end (delta: -32.3MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2023-08-29 16:39:12,490 INFO L158 Benchmark]: TraceAbstraction took 314501.47ms. Allocated memory was 92.3MB in the beginning and 6.9GB in the end (delta: 6.8GB). Free memory was 58.5MB in the beginning and 4.5GB in the end (delta: -4.4GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2023-08-29 16:39:12,490 INFO L158 Benchmark]: Witness Printer took 66.10ms. Allocated memory is still 6.9GB. Free memory was 4.5GB in the beginning and 4.5GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-29 16:39:12,492 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85ms. Allocated memory is still 60.8MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 813.01ms. Allocated memory is still 75.5MB. Free memory was 49.2MB in the beginning and 35.8MB in the end (delta: 13.4MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.63ms. Allocated memory is still 75.5MB. Free memory was 35.8MB in the beginning and 31.4MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 96.90ms. Allocated memory is still 75.5MB. Free memory was 31.4MB in the beginning and 27.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 976.36ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 27.2MB in the beginning and 59.5MB in the end (delta: -32.3MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * TraceAbstraction took 314501.47ms. Allocated memory was 92.3MB in the beginning and 6.9GB in the end (delta: 6.8GB). Free memory was 58.5MB in the beginning and 4.5GB in the end (delta: -4.4GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. * Witness Printer took 66.10ms. Allocated memory is still 6.9GB. Free memory was 4.5GB in the beginning and 4.5GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.3s, 229 PlacesBefore, 86 PlacesAfterwards, 228 TransitionsBefore, 83 TransitionsAfterwards, 6368 CoEnabledTransitionPairs, 8 FixpointIterations, 100 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 22 ConcurrentYvCompositions, 2 ChoiceCompositions, 189 TotalNumberOfCompositions, 34860 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8398, independent: 7297, independent conditional: 0, independent unconditional: 7297, dependent: 1101, dependent conditional: 0, dependent unconditional: 1101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3051, independent: 2954, independent conditional: 0, independent unconditional: 2954, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8398, independent: 4343, independent conditional: 0, independent unconditional: 4343, dependent: 1004, dependent conditional: 0, dependent unconditional: 1004, unknown: 3051, unknown conditional: 0, unknown unconditional: 3051] , Statistics on independence cache: Total cache size (in pairs): 253, Positive cache size: 174, Positive conditional cache size: 0, Positive unconditional cache size: 174, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1726]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1729]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1732]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1756]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1734]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1757]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1753]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1694]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1700]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 244 locations, 25 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 314.4s, OverallIterations: 32, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 248.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 48.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15662 SdHoareTripleChecker+Valid, 46.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12567 mSDsluCounter, 8912 SdHoareTripleChecker+Invalid, 41.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8596 mSDsCounter, 4244 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54830 IncrementalHoareTripleChecker+Invalid, 59074 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4244 mSolverCounterUnsat, 316 mSDtfsCounter, 54830 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 465 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 456 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55069occurred in iteration=24, InterpolantAutomatonStates: 333, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.6s InterpolantComputationTime, 604 NumberOfCodeBlocks, 604 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 572 ConstructedInterpolants, 0 QuantifiedInterpolants, 7440 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 32 InterpolantComputations, 32 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 16:39:12,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE