./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 BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/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 BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:04:23,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:04:23,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:04:23,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:04:23,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:04:23,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:04:23,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:04:23,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:04:23,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:04:23,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:04:23,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:04:23,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:04:23,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:04:23,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:04:23,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:04:23,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:04:23,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:04:23,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:04:23,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:04:23,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:04:23,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:04:23,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:04:23,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:04:23,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:04:23,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:04:23,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:04:23,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:04:23,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:04:23,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:04:23,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:04:23,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:04:23,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:04:23,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:04:23,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:04:23,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:04:23,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:04:23,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:04:23,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:04:23,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:04:23,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:04:23,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:04:23,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:04:23,948 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:04:23,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:04:23,951 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:04:23,951 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:04:23,952 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:04:23,952 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:04:23,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:04:23,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:04:23,954 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:04:23,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:04:23,955 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:04:23,955 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:04:23,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:04:23,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:04:23,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:04:23,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:04:23,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:04:23,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:04:23,956 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:04:23,956 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:04:23,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:04:23,956 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:04:23,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:04:23,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:04:23,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:04:23,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:04:23,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:04:23,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:04:23,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:04:23,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:04:23,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:04:23,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:04:23,959 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:04:23,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:04:23,959 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:04:23,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:04:23,959 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:04:23,959 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:04:24,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:04:24,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:04:24,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:04:24,256 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:04:24,256 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:04:24,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2023-08-31 19:04:25,368 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:04:25,646 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:04:25,646 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2023-08-31 19:04:25,665 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a4dd0824/5bf1ba0f573c41d1921a5e794bdd1c2c/FLAGa0d54cdf4 [2023-08-31 19:04:25,677 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a4dd0824/5bf1ba0f573c41d1921a5e794bdd1c2c [2023-08-31 19:04:25,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:04:25,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:04:25,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:04:25,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:04:25,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:04:25,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:04:25" (1/1) ... [2023-08-31 19:04:25,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@799af513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:04:25, skipping insertion in model container [2023-08-31 19:04:25,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:04:25" (1/1) ... [2023-08-31 19:04:25,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:04:25,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:04:25,925 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-31 19:04:26,476 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] [2023-08-31 19:04:26,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:04:26,521 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:04:26,531 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-31 19:04:26,572 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] [2023-08-31 19:04:26,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:04:26,714 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 19:04:26,715 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 19:04:26,715 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 19:04:26,721 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:04:26,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:04:26 WrapperNode [2023-08-31 19:04:26,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:04:26,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:04:26,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:04:26,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:04:26,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:04:26" (1/1) ... [2023-08-31 19:04:26,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:04:26" (1/1) ... [2023-08-31 19:04:26,807 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 226 [2023-08-31 19:04:26,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:04:26,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:04:26,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:04:26,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:04:26,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:04:26" (1/1) ... [2023-08-31 19:04:26,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:04:26" (1/1) ... [2023-08-31 19:04:26,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:04:26" (1/1) ... [2023-08-31 19:04:26,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:04:26" (1/1) ... [2023-08-31 19:04:26,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:04:26" (1/1) ... [2023-08-31 19:04:26,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:04:26" (1/1) ... [2023-08-31 19:04:26,863 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:04:26" (1/1) ... [2023-08-31 19:04:26,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:04:26" (1/1) ... [2023-08-31 19:04:26,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:04:26,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:04:26,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:04:26,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:04:26,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:04:26" (1/1) ... [2023-08-31 19:04:26,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:04:26,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:04:26,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 19:04:26,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 19:04:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 19:04:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:04:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 19:04:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:04:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:04:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:04:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-31 19:04:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:04:26,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:04:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-31 19:04:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-31 19:04:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:04:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:04:26,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:04:26,973 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:04:27,314 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:04:27,315 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:04:27,804 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:04:27,908 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:04:27,909 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:04:27,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:04:27 BoogieIcfgContainer [2023-08-31 19:04:27,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:04:27,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:04:27,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:04:27,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:04:27,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:04:25" (1/3) ... [2023-08-31 19:04:27,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664e3d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:04:27, skipping insertion in model container [2023-08-31 19:04:27,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:04:26" (2/3) ... [2023-08-31 19:04:27,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664e3d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:04:27, skipping insertion in model container [2023-08-31 19:04:27,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:04:27" (3/3) ... [2023-08-31 19:04:27,918 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2023-08-31 19:04:27,925 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:04:27,934 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:04:27,934 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-08-31 19:04:27,934 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:04:27,993 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 19:04:28,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 231 transitions, 478 flow [2023-08-31 19:04:28,138 INFO L130 PetriNetUnfolder]: 8/309 cut-off events. [2023-08-31 19:04:28,138 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 19:04:28,143 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. [2023-08-31 19:04:28,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 231 transitions, 478 flow [2023-08-31 19:04:28,149 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 228 transitions, 468 flow [2023-08-31 19:04:28,153 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:04:28,167 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 229 places, 228 transitions, 468 flow [2023-08-31 19:04:28,170 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 229 places, 228 transitions, 468 flow [2023-08-31 19:04:28,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 228 transitions, 468 flow [2023-08-31 19:04:28,243 INFO L130 PetriNetUnfolder]: 7/308 cut-off events. [2023-08-31 19:04:28,243 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 19:04:28,244 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. [2023-08-31 19:04:28,248 INFO L119 LiptonReduction]: Number of co-enabled transitions 6368 [2023-08-31 19:05:13,405 WARN L222 SmtUtils]: Spent 6.87s 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) [2023-08-31 19:05:16,532 INFO L134 LiptonReduction]: Checked pairs total: 34860 [2023-08-31 19:05:16,533 INFO L136 LiptonReduction]: Total number of compositions: 189 [2023-08-31 19:05:16,543 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:05:16,547 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;@225f9560, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:05:16,548 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-31 19:05:16,549 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 19:05:16,549 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:05:16,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:16,550 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 19:05:16,550 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)] === [2023-08-31 19:05:16,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:16,554 INFO L85 PathProgramCache]: Analyzing trace with hash 860, now seen corresponding path program 1 times [2023-08-31 19:05:16,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:16,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738686984] [2023-08-31 19:05:16,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:16,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:16,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:16,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:16,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738686984] [2023-08-31 19:05:16,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738686984] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:16,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:16,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 19:05:16,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303707412] [2023-08-31 19:05:16,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:16,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 19:05:16,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:16,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 19:05:16,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 19:05:16,865 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 420 [2023-08-31 19:05:16,867 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) [2023-08-31 19:05:16,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:16,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 420 [2023-08-31 19:05:16,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:17,313 INFO L130 PetriNetUnfolder]: 771/1979 cut-off events. [2023-08-31 19:05:17,314 INFO L131 PetriNetUnfolder]: For 38/80 co-relation queries the response was YES. [2023-08-31 19:05:17,319 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. [2023-08-31 19:05:17,326 INFO L137 encePairwiseOnDemand]: 404/420 looper letters, 31 selfloop transitions, 0 changer transitions 1/66 dead transitions. [2023-08-31 19:05:17,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 66 transitions, 208 flow [2023-08-31 19:05:17,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 19:05:17,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 19:05:17,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 446 transitions. [2023-08-31 19:05:17,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.530952380952381 [2023-08-31 19:05:17,345 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 446 transitions. [2023-08-31 19:05:17,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 446 transitions. [2023-08-31 19:05:17,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:17,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 446 transitions. [2023-08-31 19:05:17,354 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) [2023-08-31 19:05:17,358 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) [2023-08-31 19:05:17,359 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) [2023-08-31 19:05:17,361 INFO L175 Difference]: Start difference. First operand has 86 places, 83 transitions, 178 flow. Second operand 2 states and 446 transitions. [2023-08-31 19:05:17,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 66 transitions, 208 flow [2023-08-31 19:05:17,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 66 transitions, 200 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 19:05:17,370 INFO L231 Difference]: Finished difference. Result has 68 places, 65 transitions, 134 flow [2023-08-31 19:05:17,372 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} [2023-08-31 19:05:17,377 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -18 predicate places. [2023-08-31 19:05:17,377 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 65 transitions, 134 flow [2023-08-31 19:05:17,378 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) [2023-08-31 19:05:17,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:17,378 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:17,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:05:17,378 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)] === [2023-08-31 19:05:17,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:17,387 INFO L85 PathProgramCache]: Analyzing trace with hash 910082406, now seen corresponding path program 1 times [2023-08-31 19:05:17,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:17,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937053601] [2023-08-31 19:05:17,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:17,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:17,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:17,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:17,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937053601] [2023-08-31 19:05:17,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937053601] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:17,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:17,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:05:17,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431630879] [2023-08-31 19:05:17,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:17,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:05:17,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:17,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:05:17,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:05:18,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 420 [2023-08-31 19:05:18,208 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) [2023-08-31 19:05:18,209 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:18,209 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 420 [2023-08-31 19:05:18,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:18,962 INFO L130 PetriNetUnfolder]: 1823/3497 cut-off events. [2023-08-31 19:05:18,962 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-31 19:05:18,965 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. [2023-08-31 19:05:18,975 INFO L137 encePairwiseOnDemand]: 406/420 looper letters, 63 selfloop transitions, 31 changer transitions 0/110 dead transitions. [2023-08-31 19:05:18,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 110 transitions, 412 flow [2023-08-31 19:05:18,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:05:18,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:05:18,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1067 transitions. [2023-08-31 19:05:18,988 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4234126984126984 [2023-08-31 19:05:18,988 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1067 transitions. [2023-08-31 19:05:18,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1067 transitions. [2023-08-31 19:05:18,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:18,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1067 transitions. [2023-08-31 19:05:18,992 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) [2023-08-31 19:05:18,997 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) [2023-08-31 19:05:18,999 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) [2023-08-31 19:05:18,999 INFO L175 Difference]: Start difference. First operand has 68 places, 65 transitions, 134 flow. Second operand 6 states and 1067 transitions. [2023-08-31 19:05:18,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 110 transitions, 412 flow [2023-08-31 19:05:19,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 110 transitions, 412 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:05:19,002 INFO L231 Difference]: Finished difference. Result has 77 places, 94 transitions, 340 flow [2023-08-31 19:05:19,002 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} [2023-08-31 19:05:19,003 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -9 predicate places. [2023-08-31 19:05:19,003 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 94 transitions, 340 flow [2023-08-31 19:05:19,004 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) [2023-08-31 19:05:19,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:19,004 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:19,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:05:19,005 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)] === [2023-08-31 19:05:19,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:19,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1114239767, now seen corresponding path program 1 times [2023-08-31 19:05:19,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:19,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201743238] [2023-08-31 19:05:19,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:19,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:19,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:19,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:19,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201743238] [2023-08-31 19:05:19,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201743238] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:19,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:19,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:05:19,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528070177] [2023-08-31 19:05:19,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:19,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:05:19,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:19,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:05:19,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:05:19,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 420 [2023-08-31 19:05:19,174 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) [2023-08-31 19:05:19,174 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:19,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 420 [2023-08-31 19:05:19,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:19,722 INFO L130 PetriNetUnfolder]: 1104/2733 cut-off events. [2023-08-31 19:05:19,722 INFO L131 PetriNetUnfolder]: For 927/927 co-relation queries the response was YES. [2023-08-31 19:05:19,727 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. [2023-08-31 19:05:19,737 INFO L137 encePairwiseOnDemand]: 417/420 looper letters, 55 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2023-08-31 19:05:19,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 95 transitions, 456 flow [2023-08-31 19:05:19,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:05:19,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:05:19,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 621 transitions. [2023-08-31 19:05:19,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4928571428571429 [2023-08-31 19:05:19,741 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 621 transitions. [2023-08-31 19:05:19,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 621 transitions. [2023-08-31 19:05:19,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:19,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 621 transitions. [2023-08-31 19:05:19,743 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) [2023-08-31 19:05:19,746 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) [2023-08-31 19:05:19,746 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) [2023-08-31 19:05:19,747 INFO L175 Difference]: Start difference. First operand has 77 places, 94 transitions, 340 flow. Second operand 3 states and 621 transitions. [2023-08-31 19:05:19,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 95 transitions, 456 flow [2023-08-31 19:05:19,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 95 transitions, 456 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:05:19,756 INFO L231 Difference]: Finished difference. Result has 80 places, 95 transitions, 352 flow [2023-08-31 19:05:19,756 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} [2023-08-31 19:05:19,757 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -6 predicate places. [2023-08-31 19:05:19,758 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 95 transitions, 352 flow [2023-08-31 19:05:19,759 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) [2023-08-31 19:05:19,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:19,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:19,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:05:19,759 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)] === [2023-08-31 19:05:19,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:19,761 INFO L85 PathProgramCache]: Analyzing trace with hash 752495229, now seen corresponding path program 1 times [2023-08-31 19:05:19,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:19,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628848774] [2023-08-31 19:05:19,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:19,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:19,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:19,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:19,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628848774] [2023-08-31 19:05:19,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628848774] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:19,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:19,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 19:05:19,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701133589] [2023-08-31 19:05:19,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:19,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:05:19,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:19,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:05:19,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:05:19,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 420 [2023-08-31 19:05:19,882 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) [2023-08-31 19:05:19,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:19,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 420 [2023-08-31 19:05:19,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:20,217 INFO L130 PetriNetUnfolder]: 351/914 cut-off events. [2023-08-31 19:05:20,217 INFO L131 PetriNetUnfolder]: For 182/182 co-relation queries the response was YES. [2023-08-31 19:05:20,219 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. [2023-08-31 19:05:20,222 INFO L137 encePairwiseOnDemand]: 417/420 looper letters, 39 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2023-08-31 19:05:20,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 74 transitions, 292 flow [2023-08-31 19:05:20,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:05:20,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:05:20,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 630 transitions. [2023-08-31 19:05:20,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-08-31 19:05:20,227 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 630 transitions. [2023-08-31 19:05:20,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 630 transitions. [2023-08-31 19:05:20,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:20,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 630 transitions. [2023-08-31 19:05:20,229 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) [2023-08-31 19:05:20,231 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) [2023-08-31 19:05:20,232 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) [2023-08-31 19:05:20,232 INFO L175 Difference]: Start difference. First operand has 80 places, 95 transitions, 352 flow. Second operand 3 states and 630 transitions. [2023-08-31 19:05:20,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 74 transitions, 292 flow [2023-08-31 19:05:20,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 74 transitions, 267 flow, removed 1 selfloop flow, removed 10 redundant places. [2023-08-31 19:05:20,236 INFO L231 Difference]: Finished difference. Result has 71 places, 64 transitions, 157 flow [2023-08-31 19:05:20,236 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} [2023-08-31 19:05:20,237 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -15 predicate places. [2023-08-31 19:05:20,238 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 64 transitions, 157 flow [2023-08-31 19:05:20,238 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) [2023-08-31 19:05:20,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:20,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:20,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:05:20,239 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)] === [2023-08-31 19:05:20,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:20,239 INFO L85 PathProgramCache]: Analyzing trace with hash -907961946, now seen corresponding path program 1 times [2023-08-31 19:05:20,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:20,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268298133] [2023-08-31 19:05:20,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:20,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:20,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:20,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:20,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268298133] [2023-08-31 19:05:20,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268298133] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:20,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:20,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:05:20,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747247480] [2023-08-31 19:05:20,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:20,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:05:20,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:20,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:05:20,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:05:20,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 420 [2023-08-31 19:05:20,801 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) [2023-08-31 19:05:20,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:20,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 420 [2023-08-31 19:05:20,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:21,123 INFO L130 PetriNetUnfolder]: 611/1173 cut-off events. [2023-08-31 19:05:21,124 INFO L131 PetriNetUnfolder]: For 446/446 co-relation queries the response was YES. [2023-08-31 19:05:21,125 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. [2023-08-31 19:05:21,129 INFO L137 encePairwiseOnDemand]: 414/420 looper letters, 42 selfloop transitions, 5 changer transitions 0/63 dead transitions. [2023-08-31 19:05:21,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 63 transitions, 249 flow [2023-08-31 19:05:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:05:21,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:05:21,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1020 transitions. [2023-08-31 19:05:21,133 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40476190476190477 [2023-08-31 19:05:21,134 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1020 transitions. [2023-08-31 19:05:21,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1020 transitions. [2023-08-31 19:05:21,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:21,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1020 transitions. [2023-08-31 19:05:21,136 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) [2023-08-31 19:05:21,140 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) [2023-08-31 19:05:21,141 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) [2023-08-31 19:05:21,142 INFO L175 Difference]: Start difference. First operand has 71 places, 64 transitions, 157 flow. Second operand 6 states and 1020 transitions. [2023-08-31 19:05:21,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 63 transitions, 249 flow [2023-08-31 19:05:21,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 63 transitions, 239 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-31 19:05:21,144 INFO L231 Difference]: Finished difference. Result has 72 places, 63 transitions, 155 flow [2023-08-31 19:05:21,144 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} [2023-08-31 19:05:21,144 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -14 predicate places. [2023-08-31 19:05:21,145 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 63 transitions, 155 flow [2023-08-31 19:05:21,145 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) [2023-08-31 19:05:21,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:21,145 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:21,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 19:05:21,146 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)] === [2023-08-31 19:05:21,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:21,146 INFO L85 PathProgramCache]: Analyzing trace with hash 738674119, now seen corresponding path program 1 times [2023-08-31 19:05:21,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:21,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128323113] [2023-08-31 19:05:21,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:21,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:21,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:21,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:21,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128323113] [2023-08-31 19:05:21,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128323113] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:21,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:21,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:05:21,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827556297] [2023-08-31 19:05:21,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:21,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:05:21,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:21,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:05:21,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:05:21,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 420 [2023-08-31 19:05:21,839 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) [2023-08-31 19:05:21,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:21,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 420 [2023-08-31 19:05:21,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:22,560 INFO L130 PetriNetUnfolder]: 947/1708 cut-off events. [2023-08-31 19:05:22,561 INFO L131 PetriNetUnfolder]: For 415/417 co-relation queries the response was YES. [2023-08-31 19:05:22,563 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. [2023-08-31 19:05:22,569 INFO L137 encePairwiseOnDemand]: 409/420 looper letters, 71 selfloop transitions, 22 changer transitions 0/112 dead transitions. [2023-08-31 19:05:22,569 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 112 transitions, 490 flow [2023-08-31 19:05:22,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:05:22,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:05:22,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1150 transitions. [2023-08-31 19:05:22,574 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45634920634920634 [2023-08-31 19:05:22,574 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1150 transitions. [2023-08-31 19:05:22,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1150 transitions. [2023-08-31 19:05:22,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:22,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1150 transitions. [2023-08-31 19:05:22,576 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) [2023-08-31 19:05:22,580 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) [2023-08-31 19:05:22,580 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) [2023-08-31 19:05:22,581 INFO L175 Difference]: Start difference. First operand has 72 places, 63 transitions, 155 flow. Second operand 6 states and 1150 transitions. [2023-08-31 19:05:22,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 112 transitions, 490 flow [2023-08-31 19:05:22,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 112 transitions, 480 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 19:05:22,583 INFO L231 Difference]: Finished difference. Result has 77 places, 84 transitions, 328 flow [2023-08-31 19:05:22,584 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} [2023-08-31 19:05:22,584 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -9 predicate places. [2023-08-31 19:05:22,584 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 84 transitions, 328 flow [2023-08-31 19:05:22,585 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) [2023-08-31 19:05:22,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:22,585 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:22,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 19:05:22,586 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)] === [2023-08-31 19:05:22,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:22,586 INFO L85 PathProgramCache]: Analyzing trace with hash 382828346, now seen corresponding path program 1 times [2023-08-31 19:05:22,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:22,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594498650] [2023-08-31 19:05:22,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:22,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:23,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:23,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594498650] [2023-08-31 19:05:23,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594498650] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:23,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:23,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:05:23,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972584251] [2023-08-31 19:05:23,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:23,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:05:23,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:23,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:05:23,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:05:24,061 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-31 19:05:24,063 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) [2023-08-31 19:05:24,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:24,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-31 19:05:24,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:24,997 INFO L130 PetriNetUnfolder]: 1160/2097 cut-off events. [2023-08-31 19:05:24,997 INFO L131 PetriNetUnfolder]: For 1365/1365 co-relation queries the response was YES. [2023-08-31 19:05:25,000 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. [2023-08-31 19:05:25,008 INFO L137 encePairwiseOnDemand]: 407/420 looper letters, 130 selfloop transitions, 36 changer transitions 0/185 dead transitions. [2023-08-31 19:05:25,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 185 transitions, 1131 flow [2023-08-31 19:05:25,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:05:25,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:05:25,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1812 transitions. [2023-08-31 19:05:25,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43142857142857144 [2023-08-31 19:05:25,014 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1812 transitions. [2023-08-31 19:05:25,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1812 transitions. [2023-08-31 19:05:25,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:25,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1812 transitions. [2023-08-31 19:05:25,018 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) [2023-08-31 19:05:25,023 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) [2023-08-31 19:05:25,024 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) [2023-08-31 19:05:25,024 INFO L175 Difference]: Start difference. First operand has 77 places, 84 transitions, 328 flow. Second operand 10 states and 1812 transitions. [2023-08-31 19:05:25,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 185 transitions, 1131 flow [2023-08-31 19:05:25,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 185 transitions, 1131 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:05:25,032 INFO L231 Difference]: Finished difference. Result has 92 places, 117 transitions, 714 flow [2023-08-31 19:05:25,032 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} [2023-08-31 19:05:25,033 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 6 predicate places. [2023-08-31 19:05:25,033 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 117 transitions, 714 flow [2023-08-31 19:05:25,034 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) [2023-08-31 19:05:25,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:25,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:25,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 19:05:25,034 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)] === [2023-08-31 19:05:25,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:25,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1196461396, now seen corresponding path program 2 times [2023-08-31 19:05:25,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:25,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965271773] [2023-08-31 19:05:25,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:25,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:25,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:25,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:25,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965271773] [2023-08-31 19:05:25,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965271773] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:25,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:25,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:05:25,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169964535] [2023-08-31 19:05:25,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:25,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:05:25,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:25,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:05:25,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:05:26,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-31 19:05:26,486 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) [2023-08-31 19:05:26,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:26,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-31 19:05:26,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:27,949 INFO L130 PetriNetUnfolder]: 1274/2435 cut-off events. [2023-08-31 19:05:27,949 INFO L131 PetriNetUnfolder]: For 4305/4305 co-relation queries the response was YES. [2023-08-31 19:05:27,954 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. [2023-08-31 19:05:27,965 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 105 selfloop transitions, 53 changer transitions 0/177 dead transitions. [2023-08-31 19:05:27,965 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 177 transitions, 1301 flow [2023-08-31 19:05:27,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:05:27,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:05:27,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1638 transitions. [2023-08-31 19:05:27,970 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2023-08-31 19:05:27,970 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1638 transitions. [2023-08-31 19:05:27,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1638 transitions. [2023-08-31 19:05:27,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:27,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1638 transitions. [2023-08-31 19:05:27,974 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) [2023-08-31 19:05:27,978 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) [2023-08-31 19:05:27,979 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) [2023-08-31 19:05:27,979 INFO L175 Difference]: Start difference. First operand has 92 places, 117 transitions, 714 flow. Second operand 9 states and 1638 transitions. [2023-08-31 19:05:27,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 177 transitions, 1301 flow [2023-08-31 19:05:27,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 177 transitions, 1289 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 19:05:27,994 INFO L231 Difference]: Finished difference. Result has 100 places, 131 transitions, 1037 flow [2023-08-31 19:05:27,994 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} [2023-08-31 19:05:27,995 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 14 predicate places. [2023-08-31 19:05:27,995 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 131 transitions, 1037 flow [2023-08-31 19:05:27,996 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) [2023-08-31 19:05:27,996 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:27,996 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:27,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 19:05:27,996 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)] === [2023-08-31 19:05:27,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:27,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1054446058, now seen corresponding path program 1 times [2023-08-31 19:05:27,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:27,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042022965] [2023-08-31 19:05:27,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:27,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:28,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:28,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:28,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042022965] [2023-08-31 19:05:28,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042022965] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:28,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:28,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:05:28,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521770465] [2023-08-31 19:05:28,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:28,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:05:28,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:28,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:05:28,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:05:29,255 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-31 19:05:29,257 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) [2023-08-31 19:05:29,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:29,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-31 19:05:29,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:30,191 INFO L130 PetriNetUnfolder]: 1498/2783 cut-off events. [2023-08-31 19:05:30,191 INFO L131 PetriNetUnfolder]: For 7784/7784 co-relation queries the response was YES. [2023-08-31 19:05:30,196 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. [2023-08-31 19:05:30,207 INFO L137 encePairwiseOnDemand]: 407/420 looper letters, 200 selfloop transitions, 54 changer transitions 0/273 dead transitions. [2023-08-31 19:05:30,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 273 transitions, 2587 flow [2023-08-31 19:05:30,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:05:30,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:05:30,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1821 transitions. [2023-08-31 19:05:30,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43357142857142855 [2023-08-31 19:05:30,213 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1821 transitions. [2023-08-31 19:05:30,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1821 transitions. [2023-08-31 19:05:30,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:30,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1821 transitions. [2023-08-31 19:05:30,217 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) [2023-08-31 19:05:30,222 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) [2023-08-31 19:05:30,223 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) [2023-08-31 19:05:30,223 INFO L175 Difference]: Start difference. First operand has 100 places, 131 transitions, 1037 flow. Second operand 10 states and 1821 transitions. [2023-08-31 19:05:30,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 273 transitions, 2587 flow [2023-08-31 19:05:30,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 273 transitions, 2506 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-31 19:05:30,247 INFO L231 Difference]: Finished difference. Result has 110 places, 180 transitions, 1693 flow [2023-08-31 19:05:30,247 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} [2023-08-31 19:05:30,248 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 24 predicate places. [2023-08-31 19:05:30,248 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 180 transitions, 1693 flow [2023-08-31 19:05:30,249 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) [2023-08-31 19:05:30,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:30,249 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:30,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 19:05:30,250 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)] === [2023-08-31 19:05:30,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:30,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1196469580, now seen corresponding path program 2 times [2023-08-31 19:05:30,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:30,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538311346] [2023-08-31 19:05:30,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:30,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:30,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:30,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:30,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538311346] [2023-08-31 19:05:30,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538311346] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:30,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:30,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:05:30,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82731545] [2023-08-31 19:05:30,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:30,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:05:30,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:30,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:05:30,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:05:31,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-31 19:05:31,754 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) [2023-08-31 19:05:31,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:31,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-31 19:05:31,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:32,965 INFO L130 PetriNetUnfolder]: 1617/3113 cut-off events. [2023-08-31 19:05:32,965 INFO L131 PetriNetUnfolder]: For 13219/13221 co-relation queries the response was YES. [2023-08-31 19:05:32,972 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. [2023-08-31 19:05:32,981 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 148 selfloop transitions, 90 changer transitions 0/257 dead transitions. [2023-08-31 19:05:32,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 257 transitions, 2721 flow [2023-08-31 19:05:32,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:05:32,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:05:32,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1643 transitions. [2023-08-31 19:05:32,996 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43465608465608463 [2023-08-31 19:05:32,996 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1643 transitions. [2023-08-31 19:05:32,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1643 transitions. [2023-08-31 19:05:32,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:32,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1643 transitions. [2023-08-31 19:05:33,012 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) [2023-08-31 19:05:33,018 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) [2023-08-31 19:05:33,019 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) [2023-08-31 19:05:33,019 INFO L175 Difference]: Start difference. First operand has 110 places, 180 transitions, 1693 flow. Second operand 9 states and 1643 transitions. [2023-08-31 19:05:33,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 257 transitions, 2721 flow [2023-08-31 19:05:33,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 257 transitions, 2708 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-31 19:05:33,069 INFO L231 Difference]: Finished difference. Result has 119 places, 204 transitions, 2360 flow [2023-08-31 19:05:33,070 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} [2023-08-31 19:05:33,071 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 33 predicate places. [2023-08-31 19:05:33,071 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 204 transitions, 2360 flow [2023-08-31 19:05:33,072 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) [2023-08-31 19:05:33,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:33,072 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:33,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 19:05:33,073 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)] === [2023-08-31 19:05:33,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:33,073 INFO L85 PathProgramCache]: Analyzing trace with hash 2069924828, now seen corresponding path program 3 times [2023-08-31 19:05:33,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:33,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82314225] [2023-08-31 19:05:33,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:33,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:33,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:33,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:33,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82314225] [2023-08-31 19:05:33,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82314225] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:33,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:33,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:05:33,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448737024] [2023-08-31 19:05:33,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:33,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:05:33,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:33,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:05:33,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:05:34,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-31 19:05:34,399 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) [2023-08-31 19:05:34,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:34,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-31 19:05:34,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:35,766 INFO L130 PetriNetUnfolder]: 1952/3764 cut-off events. [2023-08-31 19:05:35,767 INFO L131 PetriNetUnfolder]: For 23081/23083 co-relation queries the response was YES. [2023-08-31 19:05:35,775 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. [2023-08-31 19:05:35,790 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 189 selfloop transitions, 136 changer transitions 0/344 dead transitions. [2023-08-31 19:05:35,790 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 344 transitions, 4510 flow [2023-08-31 19:05:35,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:05:35,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:05:35,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1826 transitions. [2023-08-31 19:05:35,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43476190476190474 [2023-08-31 19:05:35,795 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1826 transitions. [2023-08-31 19:05:35,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1826 transitions. [2023-08-31 19:05:35,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:35,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1826 transitions. [2023-08-31 19:05:35,800 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) [2023-08-31 19:05:35,804 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) [2023-08-31 19:05:35,805 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) [2023-08-31 19:05:35,805 INFO L175 Difference]: Start difference. First operand has 119 places, 204 transitions, 2360 flow. Second operand 10 states and 1826 transitions. [2023-08-31 19:05:35,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 344 transitions, 4510 flow [2023-08-31 19:05:35,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 344 transitions, 4415 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-31 19:05:35,884 INFO L231 Difference]: Finished difference. Result has 129 places, 270 transitions, 3803 flow [2023-08-31 19:05:35,884 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} [2023-08-31 19:05:35,885 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 43 predicate places. [2023-08-31 19:05:35,885 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 270 transitions, 3803 flow [2023-08-31 19:05:35,885 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) [2023-08-31 19:05:35,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:35,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:35,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 19:05:35,886 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)] === [2023-08-31 19:05:35,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:35,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1454201596, now seen corresponding path program 3 times [2023-08-31 19:05:35,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:35,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104682824] [2023-08-31 19:05:35,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:35,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:36,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:36,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:36,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104682824] [2023-08-31 19:05:36,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104682824] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:36,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:36,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:05:36,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562675732] [2023-08-31 19:05:36,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:36,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:05:36,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:36,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:05:36,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:05:37,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-31 19:05:37,286 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) [2023-08-31 19:05:37,286 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:37,286 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-31 19:05:37,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:39,085 INFO L130 PetriNetUnfolder]: 2332/4467 cut-off events. [2023-08-31 19:05:39,085 INFO L131 PetriNetUnfolder]: For 38748/38758 co-relation queries the response was YES. [2023-08-31 19:05:39,097 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. [2023-08-31 19:05:39,118 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 211 selfloop transitions, 184 changer transitions 0/414 dead transitions. [2023-08-31 19:05:39,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 414 transitions, 6431 flow [2023-08-31 19:05:39,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:05:39,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:05:39,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1820 transitions. [2023-08-31 19:05:39,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2023-08-31 19:05:39,123 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1820 transitions. [2023-08-31 19:05:39,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1820 transitions. [2023-08-31 19:05:39,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:39,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1820 transitions. [2023-08-31 19:05:39,127 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) [2023-08-31 19:05:39,132 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) [2023-08-31 19:05:39,133 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) [2023-08-31 19:05:39,133 INFO L175 Difference]: Start difference. First operand has 129 places, 270 transitions, 3803 flow. Second operand 10 states and 1820 transitions. [2023-08-31 19:05:39,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 414 transitions, 6431 flow [2023-08-31 19:05:39,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 414 transitions, 6280 flow, removed 64 selfloop flow, removed 3 redundant places. [2023-08-31 19:05:39,300 INFO L231 Difference]: Finished difference. Result has 140 places, 344 transitions, 5624 flow [2023-08-31 19:05:39,301 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} [2023-08-31 19:05:39,302 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 54 predicate places. [2023-08-31 19:05:39,303 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 344 transitions, 5624 flow [2023-08-31 19:05:39,303 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) [2023-08-31 19:05:39,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:39,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:39,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 19:05:39,304 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)] === [2023-08-31 19:05:39,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:39,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1840891124, now seen corresponding path program 4 times [2023-08-31 19:05:39,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:39,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021782164] [2023-08-31 19:05:39,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:39,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:39,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:39,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:39,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021782164] [2023-08-31 19:05:39,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021782164] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:39,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:39,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:05:39,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054710806] [2023-08-31 19:05:39,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:39,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:05:39,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:39,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:05:39,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:05:40,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-31 19:05:40,706 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) [2023-08-31 19:05:40,706 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:40,706 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-31 19:05:40,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:42,271 INFO L130 PetriNetUnfolder]: 2487/4857 cut-off events. [2023-08-31 19:05:42,271 INFO L131 PetriNetUnfolder]: For 51361/51371 co-relation queries the response was YES. [2023-08-31 19:05:42,283 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. [2023-08-31 19:05:42,296 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 241 selfloop transitions, 213 changer transitions 0/473 dead transitions. [2023-08-31 19:05:42,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 473 transitions, 8163 flow [2023-08-31 19:05:42,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:05:42,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:05:42,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1821 transitions. [2023-08-31 19:05:42,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43357142857142855 [2023-08-31 19:05:42,305 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1821 transitions. [2023-08-31 19:05:42,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1821 transitions. [2023-08-31 19:05:42,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:42,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1821 transitions. [2023-08-31 19:05:42,309 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) [2023-08-31 19:05:42,314 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) [2023-08-31 19:05:42,314 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) [2023-08-31 19:05:42,315 INFO L175 Difference]: Start difference. First operand has 140 places, 344 transitions, 5624 flow. Second operand 10 states and 1821 transitions. [2023-08-31 19:05:42,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 473 transitions, 8163 flow [2023-08-31 19:05:42,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 473 transitions, 8034 flow, removed 39 selfloop flow, removed 4 redundant places. [2023-08-31 19:05:42,506 INFO L231 Difference]: Finished difference. Result has 152 places, 410 transitions, 7690 flow [2023-08-31 19:05:42,507 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} [2023-08-31 19:05:42,507 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 66 predicate places. [2023-08-31 19:05:42,508 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 410 transitions, 7690 flow [2023-08-31 19:05:42,508 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) [2023-08-31 19:05:42,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:42,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:42,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 19:05:42,509 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)] === [2023-08-31 19:05:42,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:42,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1461590260, now seen corresponding path program 4 times [2023-08-31 19:05:42,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:42,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847233169] [2023-08-31 19:05:42,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:42,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:42,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:42,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:42,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847233169] [2023-08-31 19:05:42,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847233169] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:42,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:42,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:05:42,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198858762] [2023-08-31 19:05:42,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:42,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:05:42,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:42,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:05:42,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:05:43,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-31 19:05:43,837 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) [2023-08-31 19:05:43,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:43,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-31 19:05:43,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:45,780 INFO L130 PetriNetUnfolder]: 2661/5248 cut-off events. [2023-08-31 19:05:45,780 INFO L131 PetriNetUnfolder]: For 73375/73381 co-relation queries the response was YES. [2023-08-31 19:05:45,797 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. [2023-08-31 19:05:45,817 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 260 selfloop transitions, 270 changer transitions 0/549 dead transitions. [2023-08-31 19:05:45,817 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 549 transitions, 10875 flow [2023-08-31 19:05:45,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:05:45,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:05:45,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1825 transitions. [2023-08-31 19:05:45,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2023-08-31 19:05:45,822 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1825 transitions. [2023-08-31 19:05:45,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1825 transitions. [2023-08-31 19:05:45,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:45,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1825 transitions. [2023-08-31 19:05:45,826 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) [2023-08-31 19:05:45,831 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) [2023-08-31 19:05:45,832 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) [2023-08-31 19:05:45,832 INFO L175 Difference]: Start difference. First operand has 152 places, 410 transitions, 7690 flow. Second operand 10 states and 1825 transitions. [2023-08-31 19:05:45,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 549 transitions, 10875 flow [2023-08-31 19:05:46,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 549 transitions, 10760 flow, removed 55 selfloop flow, removed 2 redundant places. [2023-08-31 19:05:46,146 INFO L231 Difference]: Finished difference. Result has 164 places, 475 transitions, 9942 flow [2023-08-31 19:05:46,147 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} [2023-08-31 19:05:46,147 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 78 predicate places. [2023-08-31 19:05:46,147 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 475 transitions, 9942 flow [2023-08-31 19:05:46,148 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) [2023-08-31 19:05:46,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:46,148 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:46,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 19:05:46,148 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)] === [2023-08-31 19:05:46,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:46,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1202169736, now seen corresponding path program 5 times [2023-08-31 19:05:46,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:46,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322743137] [2023-08-31 19:05:46,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:46,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:46,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:46,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:46,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322743137] [2023-08-31 19:05:46,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322743137] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:46,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:46,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:05:46,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832382516] [2023-08-31 19:05:46,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:46,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:05:46,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:46,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:05:46,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:05:47,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-31 19:05:47,551 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) [2023-08-31 19:05:47,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:47,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-31 19:05:47,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:49,923 INFO L130 PetriNetUnfolder]: 2697/5410 cut-off events. [2023-08-31 19:05:49,923 INFO L131 PetriNetUnfolder]: For 89082/89096 co-relation queries the response was YES. [2023-08-31 19:05:49,941 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. [2023-08-31 19:05:49,957 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 242 selfloop transitions, 302 changer transitions 0/563 dead transitions. [2023-08-31 19:05:49,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 563 transitions, 12169 flow [2023-08-31 19:05:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:05:49,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:05:49,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1817 transitions. [2023-08-31 19:05:49,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4326190476190476 [2023-08-31 19:05:49,960 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1817 transitions. [2023-08-31 19:05:49,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1817 transitions. [2023-08-31 19:05:49,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:49,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1817 transitions. [2023-08-31 19:05:49,963 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) [2023-08-31 19:05:49,967 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) [2023-08-31 19:05:49,968 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) [2023-08-31 19:05:49,968 INFO L175 Difference]: Start difference. First operand has 164 places, 475 transitions, 9942 flow. Second operand 10 states and 1817 transitions. [2023-08-31 19:05:49,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 563 transitions, 12169 flow [2023-08-31 19:05:50,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 563 transitions, 12003 flow, removed 65 selfloop flow, removed 3 redundant places. [2023-08-31 19:05:50,279 INFO L231 Difference]: Finished difference. Result has 174 places, 513 transitions, 11608 flow [2023-08-31 19:05:50,280 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} [2023-08-31 19:05:50,280 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 88 predicate places. [2023-08-31 19:05:50,280 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 513 transitions, 11608 flow [2023-08-31 19:05:50,281 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) [2023-08-31 19:05:50,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:50,281 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:50,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 19:05:50,281 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)] === [2023-08-31 19:05:50,281 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:50,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1202408560, now seen corresponding path program 5 times [2023-08-31 19:05:50,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:50,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169059718] [2023-08-31 19:05:50,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:50,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:50,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:50,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:50,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169059718] [2023-08-31 19:05:50,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169059718] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:50,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:50,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:05:50,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318262709] [2023-08-31 19:05:50,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:50,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:05:50,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:50,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:05:50,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:05:51,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 420 [2023-08-31 19:05:51,658 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) [2023-08-31 19:05:51,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:51,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 420 [2023-08-31 19:05:51,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:53,914 INFO L130 PetriNetUnfolder]: 2722/5556 cut-off events. [2023-08-31 19:05:53,915 INFO L131 PetriNetUnfolder]: For 100417/100427 co-relation queries the response was YES. [2023-08-31 19:05:53,937 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. [2023-08-31 19:05:53,961 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 255 selfloop transitions, 332 changer transitions 0/606 dead transitions. [2023-08-31 19:05:53,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 606 transitions, 14138 flow [2023-08-31 19:05:53,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:05:53,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:05:53,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1822 transitions. [2023-08-31 19:05:53,964 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4338095238095238 [2023-08-31 19:05:53,964 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1822 transitions. [2023-08-31 19:05:53,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1822 transitions. [2023-08-31 19:05:53,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:53,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1822 transitions. [2023-08-31 19:05:53,967 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) [2023-08-31 19:05:53,971 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) [2023-08-31 19:05:53,972 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) [2023-08-31 19:05:53,972 INFO L175 Difference]: Start difference. First operand has 174 places, 513 transitions, 11608 flow. Second operand 10 states and 1822 transitions. [2023-08-31 19:05:53,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 606 transitions, 14138 flow [2023-08-31 19:05:54,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 606 transitions, 13937 flow, removed 54 selfloop flow, removed 4 redundant places. [2023-08-31 19:05:54,422 INFO L231 Difference]: Finished difference. Result has 183 places, 554 transitions, 13537 flow [2023-08-31 19:05:54,422 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} [2023-08-31 19:05:54,423 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 97 predicate places. [2023-08-31 19:05:54,423 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 554 transitions, 13537 flow [2023-08-31 19:05:54,423 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) [2023-08-31 19:05:54,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:54,423 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:54,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-31 19:05:54,424 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)] === [2023-08-31 19:05:54,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:54,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1007121867, now seen corresponding path program 1 times [2023-08-31 19:05:54,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:54,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037248453] [2023-08-31 19:05:54,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:54,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:56,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:56,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037248453] [2023-08-31 19:05:56,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037248453] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:56,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:56,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:05:56,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801847065] [2023-08-31 19:05:56,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:56,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:05:56,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:56,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:05:56,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:05:57,714 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 420 [2023-08-31 19:05:57,715 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) [2023-08-31 19:05:57,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:57,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 420 [2023-08-31 19:05:57,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:06:01,678 INFO L130 PetriNetUnfolder]: 4419/8866 cut-off events. [2023-08-31 19:06:01,678 INFO L131 PetriNetUnfolder]: For 174190/174234 co-relation queries the response was YES. [2023-08-31 19:06:01,718 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. [2023-08-31 19:06:01,756 INFO L137 encePairwiseOnDemand]: 403/420 looper letters, 606 selfloop transitions, 303 changer transitions 0/928 dead transitions. [2023-08-31 19:06:01,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 928 transitions, 22243 flow [2023-08-31 19:06:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:06:01,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:06:01,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2569 transitions. [2023-08-31 19:06:01,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4369047619047619 [2023-08-31 19:06:01,760 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2569 transitions. [2023-08-31 19:06:01,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2569 transitions. [2023-08-31 19:06:01,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:06:01,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2569 transitions. [2023-08-31 19:06:01,763 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) [2023-08-31 19:06:01,768 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) [2023-08-31 19:06:01,768 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) [2023-08-31 19:06:01,769 INFO L175 Difference]: Start difference. First operand has 183 places, 554 transitions, 13537 flow. Second operand 14 states and 2569 transitions. [2023-08-31 19:06:01,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 928 transitions, 22243 flow [2023-08-31 19:06:02,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 928 transitions, 22002 flow, removed 57 selfloop flow, removed 4 redundant places. [2023-08-31 19:06:02,848 INFO L231 Difference]: Finished difference. Result has 201 places, 708 transitions, 18837 flow [2023-08-31 19:06:02,848 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} [2023-08-31 19:06:02,848 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 115 predicate places. [2023-08-31 19:06:02,849 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 708 transitions, 18837 flow [2023-08-31 19:06:02,849 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) [2023-08-31 19:06:02,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:06:02,849 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:06:02,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 19:06:02,850 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)] === [2023-08-31 19:06:02,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:06:02,850 INFO L85 PathProgramCache]: Analyzing trace with hash 289856995, now seen corresponding path program 2 times [2023-08-31 19:06:02,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:06:02,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966478890] [2023-08-31 19:06:02,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:06:02,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:06:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:06:03,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:06:03,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:06:03,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966478890] [2023-08-31 19:06:03,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966478890] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:06:03,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:06:03,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-31 19:06:03,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741481193] [2023-08-31 19:06:03,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:06:03,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-31 19:06:03,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:06:03,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-31 19:06:03,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-08-31 19:06:04,956 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 420 [2023-08-31 19:06:04,957 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) [2023-08-31 19:06:04,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:06:04,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 420 [2023-08-31 19:06:04,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:06:10,079 INFO L130 PetriNetUnfolder]: 6944/14448 cut-off events. [2023-08-31 19:06:10,079 INFO L131 PetriNetUnfolder]: For 325113/325167 co-relation queries the response was YES. [2023-08-31 19:06:10,145 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. [2023-08-31 19:06:10,205 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 867 selfloop transitions, 284 changer transitions 0/1170 dead transitions. [2023-08-31 19:06:10,205 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 1170 transitions, 29482 flow [2023-08-31 19:06:10,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-31 19:06:10,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-31 19:06:10,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3410 transitions. [2023-08-31 19:06:10,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4273182957393484 [2023-08-31 19:06:10,209 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3410 transitions. [2023-08-31 19:06:10,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3410 transitions. [2023-08-31 19:06:10,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:06:10,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3410 transitions. [2023-08-31 19:06:10,214 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) [2023-08-31 19:06:10,219 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) [2023-08-31 19:06:10,219 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) [2023-08-31 19:06:10,219 INFO L175 Difference]: Start difference. First operand has 201 places, 708 transitions, 18837 flow. Second operand 19 states and 3410 transitions. [2023-08-31 19:06:10,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 1170 transitions, 29482 flow [2023-08-31 19:06:13,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 1170 transitions, 29323 flow, removed 37 selfloop flow, removed 4 redundant places. [2023-08-31 19:06:13,292 INFO L231 Difference]: Finished difference. Result has 222 places, 798 transitions, 22306 flow [2023-08-31 19:06:13,292 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} [2023-08-31 19:06:13,293 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 136 predicate places. [2023-08-31 19:06:13,293 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 798 transitions, 22306 flow [2023-08-31 19:06:13,293 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) [2023-08-31 19:06:13,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:06:13,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:06:13,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-31 19:06:13,294 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)] === [2023-08-31 19:06:13,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:06:13,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1435585169, now seen corresponding path program 3 times [2023-08-31 19:06:13,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:06:13,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773298228] [2023-08-31 19:06:13,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:06:13,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:06:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:06:13,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:06:13,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:06:13,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773298228] [2023-08-31 19:06:13,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773298228] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:06:13,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:06:13,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:06:13,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621544383] [2023-08-31 19:06:13,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:06:13,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:06:13,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:06:13,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:06:13,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:06:14,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 420 [2023-08-31 19:06:14,901 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) [2023-08-31 19:06:14,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:06:14,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 420 [2023-08-31 19:06:14,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:06:20,006 INFO L130 PetriNetUnfolder]: 6888/14223 cut-off events. [2023-08-31 19:06:20,007 INFO L131 PetriNetUnfolder]: For 359539/359637 co-relation queries the response was YES. [2023-08-31 19:06:20,095 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. [2023-08-31 19:06:20,144 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 808 selfloop transitions, 252 changer transitions 0/1079 dead transitions. [2023-08-31 19:06:20,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 1079 transitions, 28092 flow [2023-08-31 19:06:20,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-31 19:06:20,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-31 19:06:20,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3622 transitions. [2023-08-31 19:06:20,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4311904761904762 [2023-08-31 19:06:20,147 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3622 transitions. [2023-08-31 19:06:20,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3622 transitions. [2023-08-31 19:06:20,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:06:20,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3622 transitions. [2023-08-31 19:06:20,150 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) [2023-08-31 19:06:20,154 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) [2023-08-31 19:06:20,154 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) [2023-08-31 19:06:20,155 INFO L175 Difference]: Start difference. First operand has 222 places, 798 transitions, 22306 flow. Second operand 20 states and 3622 transitions. [2023-08-31 19:06:20,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 1079 transitions, 28092 flow [2023-08-31 19:06:23,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 1079 transitions, 27932 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-31 19:06:23,595 INFO L231 Difference]: Finished difference. Result has 248 places, 864 transitions, 24272 flow [2023-08-31 19:06:23,596 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} [2023-08-31 19:06:23,596 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 162 predicate places. [2023-08-31 19:06:23,596 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 864 transitions, 24272 flow [2023-08-31 19:06:23,597 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) [2023-08-31 19:06:23,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:06:23,597 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:06:23,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-31 19:06:23,597 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)] === [2023-08-31 19:06:23,598 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:06:23,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1968675555, now seen corresponding path program 4 times [2023-08-31 19:06:23,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:06:23,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546926203] [2023-08-31 19:06:23,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:06:23,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:06:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:06:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:06:24,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:06:24,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546926203] [2023-08-31 19:06:24,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546926203] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:06:24,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:06:24,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:06:24,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482775270] [2023-08-31 19:06:24,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:06:24,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:06:24,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:06:24,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:06:24,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:06:25,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 420 [2023-08-31 19:06:25,353 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) [2023-08-31 19:06:25,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:06:25,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 420 [2023-08-31 19:06:25,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:06:31,980 INFO L130 PetriNetUnfolder]: 9033/18479 cut-off events. [2023-08-31 19:06:31,980 INFO L131 PetriNetUnfolder]: For 520145/520224 co-relation queries the response was YES. [2023-08-31 19:06:32,119 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. [2023-08-31 19:06:32,181 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 888 selfloop transitions, 272 changer transitions 0/1179 dead transitions. [2023-08-31 19:06:32,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 1179 transitions, 32988 flow [2023-08-31 19:06:32,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-31 19:06:32,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-31 19:06:32,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2377 transitions. [2023-08-31 19:06:32,183 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43534798534798536 [2023-08-31 19:06:32,183 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2377 transitions. [2023-08-31 19:06:32,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2377 transitions. [2023-08-31 19:06:32,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:06:32,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2377 transitions. [2023-08-31 19:06:32,187 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) [2023-08-31 19:06:32,190 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) [2023-08-31 19:06:32,191 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) [2023-08-31 19:06:32,191 INFO L175 Difference]: Start difference. First operand has 248 places, 864 transitions, 24272 flow. Second operand 13 states and 2377 transitions. [2023-08-31 19:06:32,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 1179 transitions, 32988 flow [2023-08-31 19:06:37,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 1179 transitions, 32741 flow, removed 39 selfloop flow, removed 5 redundant places. [2023-08-31 19:06:37,929 INFO L231 Difference]: Finished difference. Result has 262 places, 941 transitions, 27648 flow [2023-08-31 19:06:37,930 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} [2023-08-31 19:06:37,930 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 176 predicate places. [2023-08-31 19:06:37,930 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 941 transitions, 27648 flow [2023-08-31 19:06:37,930 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) [2023-08-31 19:06:37,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:06:37,930 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:06:37,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-31 19:06:37,931 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)] === [2023-08-31 19:06:37,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:06:37,931 INFO L85 PathProgramCache]: Analyzing trace with hash -2040344985, now seen corresponding path program 5 times [2023-08-31 19:06:37,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:06:37,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24739422] [2023-08-31 19:06:37,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:06:37,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:06:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:06:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:06:38,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:06:38,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24739422] [2023-08-31 19:06:38,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24739422] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:06:38,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:06:38,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:06:38,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378842224] [2023-08-31 19:06:38,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:06:38,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:06:38,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:06:38,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:06:38,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:06:39,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 420 [2023-08-31 19:06:39,281 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) [2023-08-31 19:06:39,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:06:39,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 420 [2023-08-31 19:06:39,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:06:47,674 INFO L130 PetriNetUnfolder]: 9291/19188 cut-off events. [2023-08-31 19:06:47,674 INFO L131 PetriNetUnfolder]: For 604954/605041 co-relation queries the response was YES. [2023-08-31 19:06:47,800 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. [2023-08-31 19:06:47,861 INFO L137 encePairwiseOnDemand]: 403/420 looper letters, 816 selfloop transitions, 469 changer transitions 0/1304 dead transitions. [2023-08-31 19:06:47,861 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 1304 transitions, 35765 flow [2023-08-31 19:06:47,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-31 19:06:47,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-31 19:06:47,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4202 transitions. [2023-08-31 19:06:47,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4349896480331263 [2023-08-31 19:06:47,866 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4202 transitions. [2023-08-31 19:06:47,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4202 transitions. [2023-08-31 19:06:47,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:06:47,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4202 transitions. [2023-08-31 19:06:47,871 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) [2023-08-31 19:06:47,877 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) [2023-08-31 19:06:47,878 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) [2023-08-31 19:06:47,878 INFO L175 Difference]: Start difference. First operand has 262 places, 941 transitions, 27648 flow. Second operand 23 states and 4202 transitions. [2023-08-31 19:06:47,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 1304 transitions, 35765 flow [2023-08-31 19:06:54,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 1304 transitions, 35597 flow, removed 37 selfloop flow, removed 5 redundant places. [2023-08-31 19:06:54,306 INFO L231 Difference]: Finished difference. Result has 297 places, 1075 transitions, 32725 flow [2023-08-31 19:06:54,307 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} [2023-08-31 19:06:54,307 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 211 predicate places. [2023-08-31 19:06:54,308 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 1075 transitions, 32725 flow [2023-08-31 19:06:54,308 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) [2023-08-31 19:06:54,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:06:54,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:06:54,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-31 19:06:54,309 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)] === [2023-08-31 19:06:54,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:06:54,309 INFO L85 PathProgramCache]: Analyzing trace with hash 203878179, now seen corresponding path program 6 times [2023-08-31 19:06:54,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:06:54,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376308870] [2023-08-31 19:06:54,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:06:54,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:06:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:06:55,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:06:55,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:06:55,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376308870] [2023-08-31 19:06:55,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376308870] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:06:55,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:06:55,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:06:55,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058168693] [2023-08-31 19:06:55,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:06:55,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:06:55,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:06:55,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:06:55,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:06:56,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 420 [2023-08-31 19:06:56,786 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) [2023-08-31 19:06:56,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:06:56,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 420 [2023-08-31 19:06:56,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:07:06,287 INFO L130 PetriNetUnfolder]: 10157/20296 cut-off events. [2023-08-31 19:07:06,287 INFO L131 PetriNetUnfolder]: For 744594/744687 co-relation queries the response was YES. [2023-08-31 19:07:06,459 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. [2023-08-31 19:07:06,529 INFO L137 encePairwiseOnDemand]: 403/420 looper letters, 528 selfloop transitions, 906 changer transitions 0/1453 dead transitions. [2023-08-31 19:07:06,529 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 1453 transitions, 44085 flow [2023-08-31 19:07:06,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-31 19:07:06,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-31 19:07:06,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3248 transitions. [2023-08-31 19:07:06,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42962962962962964 [2023-08-31 19:07:06,533 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3248 transitions. [2023-08-31 19:07:06,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3248 transitions. [2023-08-31 19:07:06,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:07:06,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3248 transitions. [2023-08-31 19:07:06,537 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) [2023-08-31 19:07:06,542 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) [2023-08-31 19:07:06,543 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) [2023-08-31 19:07:06,543 INFO L175 Difference]: Start difference. First operand has 297 places, 1075 transitions, 32725 flow. Second operand 18 states and 3248 transitions. [2023-08-31 19:07:06,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 1453 transitions, 44085 flow [2023-08-31 19:07:14,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 1453 transitions, 43471 flow, removed 303 selfloop flow, removed 3 redundant places. [2023-08-31 19:07:14,460 INFO L231 Difference]: Finished difference. Result has 319 places, 1336 transitions, 43141 flow [2023-08-31 19:07:14,461 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} [2023-08-31 19:07:14,461 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 233 predicate places. [2023-08-31 19:07:14,461 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 1336 transitions, 43141 flow [2023-08-31 19:07:14,462 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) [2023-08-31 19:07:14,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:07:14,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:07:14,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-31 19:07:14,462 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)] === [2023-08-31 19:07:14,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:07:14,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1112240849, now seen corresponding path program 7 times [2023-08-31 19:07:14,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:07:14,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593847837] [2023-08-31 19:07:14,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:07:14,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:07:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:07:14,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:07:14,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:07:14,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593847837] [2023-08-31 19:07:14,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593847837] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:07:14,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:07:14,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:07:14,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275376413] [2023-08-31 19:07:14,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:07:14,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:07:14,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:07:14,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:07:14,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:07:15,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 420 [2023-08-31 19:07:15,921 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) [2023-08-31 19:07:15,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:07:15,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 420 [2023-08-31 19:07:15,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:07:26,471 INFO L130 PetriNetUnfolder]: 11034/22680 cut-off events. [2023-08-31 19:07:26,472 INFO L131 PetriNetUnfolder]: For 932100/932141 co-relation queries the response was YES. [2023-08-31 19:07:26,679 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. [2023-08-31 19:07:26,777 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 984 selfloop transitions, 659 changer transitions 0/1662 dead transitions. [2023-08-31 19:07:26,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 1662 transitions, 53423 flow [2023-08-31 19:07:26,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-31 19:07:26,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-31 19:07:26,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3256 transitions. [2023-08-31 19:07:26,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4306878306878307 [2023-08-31 19:07:26,781 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3256 transitions. [2023-08-31 19:07:26,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3256 transitions. [2023-08-31 19:07:26,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:07:26,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3256 transitions. [2023-08-31 19:07:26,786 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) [2023-08-31 19:07:26,792 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) [2023-08-31 19:07:26,793 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) [2023-08-31 19:07:26,793 INFO L175 Difference]: Start difference. First operand has 319 places, 1336 transitions, 43141 flow. Second operand 18 states and 3256 transitions. [2023-08-31 19:07:26,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 1662 transitions, 53423 flow [2023-08-31 19:07:37,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 1662 transitions, 53155 flow, removed 130 selfloop flow, removed 3 redundant places. [2023-08-31 19:07:37,830 INFO L231 Difference]: Finished difference. Result has 339 places, 1495 transitions, 50059 flow [2023-08-31 19:07:37,832 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} [2023-08-31 19:07:37,832 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 253 predicate places. [2023-08-31 19:07:37,832 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 1495 transitions, 50059 flow [2023-08-31 19:07:37,833 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) [2023-08-31 19:07:37,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:07:37,833 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:07:37,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-31 19:07:37,833 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)] === [2023-08-31 19:07:37,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:07:37,834 INFO L85 PathProgramCache]: Analyzing trace with hash 725574571, now seen corresponding path program 8 times [2023-08-31 19:07:37,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:07:37,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716785127] [2023-08-31 19:07:37,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:07:37,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:07:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:07:38,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:07:38,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:07:38,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716785127] [2023-08-31 19:07:38,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716785127] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:07:38,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:07:38,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:07:38,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237970311] [2023-08-31 19:07:38,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:07:38,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:07:38,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:07:38,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:07:38,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:07:39,298 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 420 [2023-08-31 19:07:39,299 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) [2023-08-31 19:07:39,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:07:39,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 420 [2023-08-31 19:07:39,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:07:51,318 INFO L130 PetriNetUnfolder]: 11296/23753 cut-off events. [2023-08-31 19:07:51,318 INFO L131 PetriNetUnfolder]: For 1042507/1042566 co-relation queries the response was YES. [2023-08-31 19:07:51,568 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. [2023-08-31 19:07:51,657 INFO L137 encePairwiseOnDemand]: 405/420 looper letters, 870 selfloop transitions, 820 changer transitions 0/1709 dead transitions. [2023-08-31 19:07:51,657 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 1709 transitions, 57260 flow [2023-08-31 19:07:51,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-31 19:07:51,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-31 19:07:51,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3604 transitions. [2023-08-31 19:07:51,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42904761904761907 [2023-08-31 19:07:51,660 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3604 transitions. [2023-08-31 19:07:51,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3604 transitions. [2023-08-31 19:07:51,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:07:51,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3604 transitions. [2023-08-31 19:07:51,664 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) [2023-08-31 19:07:51,669 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) [2023-08-31 19:07:51,670 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) [2023-08-31 19:07:51,670 INFO L175 Difference]: Start difference. First operand has 339 places, 1495 transitions, 50059 flow. Second operand 20 states and 3604 transitions. [2023-08-31 19:07:51,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 1709 transitions, 57260 flow [2023-08-31 19:08:05,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 1709 transitions, 56806 flow, removed 138 selfloop flow, removed 7 redundant places. [2023-08-31 19:08:05,804 INFO L231 Difference]: Finished difference. Result has 356 places, 1595 transitions, 55069 flow [2023-08-31 19:08:05,805 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} [2023-08-31 19:08:05,806 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 270 predicate places. [2023-08-31 19:08:05,806 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 1595 transitions, 55069 flow [2023-08-31 19:08:05,806 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) [2023-08-31 19:08:05,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:08:05,807 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:08:05,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-31 19:08:05,807 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)] === [2023-08-31 19:08:05,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:08:05,807 INFO L85 PathProgramCache]: Analyzing trace with hash -797219638, now seen corresponding path program 1 times [2023-08-31 19:08:05,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:08:05,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450526626] [2023-08-31 19:08:05,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:08:05,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:08:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:08:06,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:08:06,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:08:06,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450526626] [2023-08-31 19:08:06,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450526626] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:08:06,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:08:06,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:08:06,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702345072] [2023-08-31 19:08:06,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:08:06,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:08:06,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:08:06,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:08:06,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:08:06,294 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 420 [2023-08-31 19:08:06,295 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) [2023-08-31 19:08:06,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:08:06,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 420 [2023-08-31 19:08:06,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:08:16,031 INFO L130 PetriNetUnfolder]: 7908/19728 cut-off events. [2023-08-31 19:08:16,031 INFO L131 PetriNetUnfolder]: For 762473/764857 co-relation queries the response was YES. [2023-08-31 19:08:16,389 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. [2023-08-31 19:08:16,467 INFO L137 encePairwiseOnDemand]: 415/420 looper letters, 1125 selfloop transitions, 4 changer transitions 0/1594 dead transitions. [2023-08-31 19:08:16,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 1594 transitions, 57325 flow [2023-08-31 19:08:16,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:08:16,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:08:16,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1067 transitions. [2023-08-31 19:08:16,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4234126984126984 [2023-08-31 19:08:16,469 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1067 transitions. [2023-08-31 19:08:16,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1067 transitions. [2023-08-31 19:08:16,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:08:16,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1067 transitions. [2023-08-31 19:08:16,470 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) [2023-08-31 19:08:16,471 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) [2023-08-31 19:08:16,472 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) [2023-08-31 19:08:16,472 INFO L175 Difference]: Start difference. First operand has 356 places, 1595 transitions, 55069 flow. Second operand 6 states and 1067 transitions. [2023-08-31 19:08:16,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 1594 transitions, 57325 flow [2023-08-31 19:08:25,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 1594 transitions, 56684 flow, removed 134 selfloop flow, removed 6 redundant places. [2023-08-31 19:08:25,954 INFO L231 Difference]: Finished difference. Result has 354 places, 1594 transitions, 54434 flow [2023-08-31 19:08:25,955 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} [2023-08-31 19:08:25,955 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 268 predicate places. [2023-08-31 19:08:25,955 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 1594 transitions, 54434 flow [2023-08-31 19:08:25,956 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) [2023-08-31 19:08:25,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:08:25,956 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] [2023-08-31 19:08:25,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-31 19:08:25,956 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)] === [2023-08-31 19:08:25,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:08:25,956 INFO L85 PathProgramCache]: Analyzing trace with hash 279725888, now seen corresponding path program 1 times [2023-08-31 19:08:25,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:08:25,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322463935] [2023-08-31 19:08:25,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:08:25,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:08:25,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:08:26,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:08:26,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:08:26,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322463935] [2023-08-31 19:08:26,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322463935] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:08:26,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:08:26,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:08:26,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303743632] [2023-08-31 19:08:26,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:08:26,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:08:26,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:08:26,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:08:26,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:08:26,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 420 [2023-08-31 19:08:26,451 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) [2023-08-31 19:08:26,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:08:26,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 420 [2023-08-31 19:08:26,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:08:36,162 INFO L130 PetriNetUnfolder]: 7900/19728 cut-off events. [2023-08-31 19:08:36,162 INFO L131 PetriNetUnfolder]: For 748559/750825 co-relation queries the response was YES. [2023-08-31 19:08:36,432 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. [2023-08-31 19:08:36,635 INFO L137 encePairwiseOnDemand]: 413/420 looper letters, 1049 selfloop transitions, 0 changer transitions 90/1595 dead transitions. [2023-08-31 19:08:36,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 1595 transitions, 56697 flow [2023-08-31 19:08:36,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:08:36,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:08:36,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1068 transitions. [2023-08-31 19:08:36,636 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4238095238095238 [2023-08-31 19:08:36,636 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1068 transitions. [2023-08-31 19:08:36,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1068 transitions. [2023-08-31 19:08:36,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:08:36,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1068 transitions. [2023-08-31 19:08:36,637 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) [2023-08-31 19:08:36,638 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) [2023-08-31 19:08:36,638 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) [2023-08-31 19:08:36,638 INFO L175 Difference]: Start difference. First operand has 354 places, 1594 transitions, 54434 flow. Second operand 6 states and 1068 transitions. [2023-08-31 19:08:36,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 1595 transitions, 56697 flow [2023-08-31 19:08:45,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 1595 transitions, 56690 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 19:08:45,510 INFO L231 Difference]: Finished difference. Result has 354 places, 1505 transitions, 51771 flow [2023-08-31 19:08:45,511 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} [2023-08-31 19:08:45,512 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 268 predicate places. [2023-08-31 19:08:45,512 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 1505 transitions, 51771 flow [2023-08-31 19:08:45,512 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) [2023-08-31 19:08:45,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:08:45,512 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] [2023-08-31 19:08:45,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-31 19:08:45,512 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)] === [2023-08-31 19:08:45,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:08:45,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1412978504, now seen corresponding path program 1 times [2023-08-31 19:08:45,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:08:45,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002055752] [2023-08-31 19:08:45,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:08:45,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:08:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:08:45,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:08:45,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:08:45,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002055752] [2023-08-31 19:08:45,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002055752] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:08:45,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:08:45,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:08:45,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427932754] [2023-08-31 19:08:45,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:08:45,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:08:45,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:08:45,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:08:45,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:08:46,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 420 [2023-08-31 19:08:46,262 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) [2023-08-31 19:08:46,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:08:46,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 420 [2023-08-31 19:08:46,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:08:57,983 INFO L130 PetriNetUnfolder]: 10303/22245 cut-off events. [2023-08-31 19:08:57,983 INFO L131 PetriNetUnfolder]: For 848732/850998 co-relation queries the response was YES. [2023-08-31 19:08:58,236 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. [2023-08-31 19:08:58,297 INFO L137 encePairwiseOnDemand]: 412/420 looper letters, 840 selfloop transitions, 252 changer transitions 302/1801 dead transitions. [2023-08-31 19:08:58,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 1801 transitions, 65149 flow [2023-08-31 19:08:58,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:08:58,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:08:58,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1109 transitions. [2023-08-31 19:08:58,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44007936507936507 [2023-08-31 19:08:58,299 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1109 transitions. [2023-08-31 19:08:58,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1109 transitions. [2023-08-31 19:08:58,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:08:58,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1109 transitions. [2023-08-31 19:08:58,300 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) [2023-08-31 19:08:58,302 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) [2023-08-31 19:08:58,302 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) [2023-08-31 19:08:58,302 INFO L175 Difference]: Start difference. First operand has 354 places, 1505 transitions, 51771 flow. Second operand 6 states and 1109 transitions. [2023-08-31 19:08:58,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 1801 transitions, 65149 flow [2023-08-31 19:09:08,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 1801 transitions, 63973 flow, removed 52 selfloop flow, removed 6 redundant places. [2023-08-31 19:09:08,197 INFO L231 Difference]: Finished difference. Result has 327 places, 1459 transitions, 51437 flow [2023-08-31 19:09:08,198 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} [2023-08-31 19:09:08,199 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 241 predicate places. [2023-08-31 19:09:08,199 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 1459 transitions, 51437 flow [2023-08-31 19:09:08,199 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) [2023-08-31 19:09:08,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:09:08,199 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] [2023-08-31 19:09:08,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-31 19:09:08,200 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)] === [2023-08-31 19:09:08,200 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:09:08,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1076833791, now seen corresponding path program 1 times [2023-08-31 19:09:08,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:09:08,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811058735] [2023-08-31 19:09:08,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:09:08,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:09:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:09:08,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:09:08,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:09:08,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811058735] [2023-08-31 19:09:08,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811058735] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:09:08,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:09:08,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:09:08,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492818725] [2023-08-31 19:09:08,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:09:08,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:09:08,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:09:08,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:09:08,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:09:09,486 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 420 [2023-08-31 19:09:09,486 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) [2023-08-31 19:09:09,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:09:09,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 420 [2023-08-31 19:09:09,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:09:18,688 INFO L130 PetriNetUnfolder]: 7792/17946 cut-off events. [2023-08-31 19:09:18,688 INFO L131 PetriNetUnfolder]: For 635620/637793 co-relation queries the response was YES. [2023-08-31 19:09:18,880 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. [2023-08-31 19:09:18,900 INFO L137 encePairwiseOnDemand]: 412/420 looper letters, 132 selfloop transitions, 12 changer transitions 1364/1556 dead transitions. [2023-08-31 19:09:18,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 1556 transitions, 55847 flow [2023-08-31 19:09:18,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:09:18,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:09:18,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1617 transitions. [2023-08-31 19:09:18,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42777777777777776 [2023-08-31 19:09:18,902 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1617 transitions. [2023-08-31 19:09:18,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1617 transitions. [2023-08-31 19:09:18,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:09:18,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1617 transitions. [2023-08-31 19:09:18,903 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) [2023-08-31 19:09:18,905 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) [2023-08-31 19:09:18,905 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) [2023-08-31 19:09:18,905 INFO L175 Difference]: Start difference. First operand has 327 places, 1459 transitions, 51437 flow. Second operand 9 states and 1617 transitions. [2023-08-31 19:09:18,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 1556 transitions, 55847 flow [2023-08-31 19:09:25,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 1556 transitions, 55743 flow, removed 52 selfloop flow, removed 0 redundant places. [2023-08-31 19:09:25,337 INFO L231 Difference]: Finished difference. Result has 339 places, 187 transitions, 5166 flow [2023-08-31 19:09:25,337 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} [2023-08-31 19:09:25,338 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 253 predicate places. [2023-08-31 19:09:25,338 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 187 transitions, 5166 flow [2023-08-31 19:09:25,338 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) [2023-08-31 19:09:25,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:09:25,339 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] [2023-08-31 19:09:25,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-31 19:09:25,339 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)] === [2023-08-31 19:09:25,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:09:25,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1885381699, now seen corresponding path program 2 times [2023-08-31 19:09:25,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:09:25,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407971292] [2023-08-31 19:09:25,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:09:25,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:09:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:09:25,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:09:25,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:09:25,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407971292] [2023-08-31 19:09:25,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407971292] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:09:25,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:09:25,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:09:25,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757490655] [2023-08-31 19:09:25,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:09:25,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:09:25,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:09:25,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:09:25,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:09:26,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 420 [2023-08-31 19:09:26,461 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) [2023-08-31 19:09:26,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:09:26,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 420 [2023-08-31 19:09:26,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:09:26,945 INFO L130 PetriNetUnfolder]: 332/1049 cut-off events. [2023-08-31 19:09:26,945 INFO L131 PetriNetUnfolder]: For 36663/36698 co-relation queries the response was YES. [2023-08-31 19:09:26,953 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. [2023-08-31 19:09:26,955 INFO L137 encePairwiseOnDemand]: 411/420 looper letters, 104 selfloop transitions, 55 changer transitions 36/243 dead transitions. [2023-08-31 19:09:26,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 243 transitions, 7192 flow [2023-08-31 19:09:26,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:09:26,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:09:26,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1595 transitions. [2023-08-31 19:09:26,957 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.421957671957672 [2023-08-31 19:09:26,958 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1595 transitions. [2023-08-31 19:09:26,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1595 transitions. [2023-08-31 19:09:26,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:09:26,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1595 transitions. [2023-08-31 19:09:26,960 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) [2023-08-31 19:09:26,962 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) [2023-08-31 19:09:26,962 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) [2023-08-31 19:09:26,962 INFO L175 Difference]: Start difference. First operand has 339 places, 187 transitions, 5166 flow. Second operand 9 states and 1595 transitions. [2023-08-31 19:09:26,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 243 transitions, 7192 flow [2023-08-31 19:09:27,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 243 transitions, 4700 flow, removed 242 selfloop flow, removed 87 redundant places. [2023-08-31 19:09:27,040 INFO L231 Difference]: Finished difference. Result has 211 places, 187 transitions, 3421 flow [2023-08-31 19:09:27,041 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} [2023-08-31 19:09:27,041 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 125 predicate places. [2023-08-31 19:09:27,041 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 187 transitions, 3421 flow [2023-08-31 19:09:27,042 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) [2023-08-31 19:09:27,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:09:27,042 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] [2023-08-31 19:09:27,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-31 19:09:27,042 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)] === [2023-08-31 19:09:27,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:09:27,043 INFO L85 PathProgramCache]: Analyzing trace with hash 805217665, now seen corresponding path program 3 times [2023-08-31 19:09:27,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:09:27,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504192537] [2023-08-31 19:09:27,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:09:27,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:09:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:09:27,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:09:27,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:09:27,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504192537] [2023-08-31 19:09:27,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504192537] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:09:27,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:09:27,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:09:27,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910351122] [2023-08-31 19:09:27,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:09:27,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:09:27,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:09:27,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:09:27,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:09:28,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 420 [2023-08-31 19:09:28,355 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) [2023-08-31 19:09:28,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:09:28,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 420 [2023-08-31 19:09:28,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:09:28,802 INFO L130 PetriNetUnfolder]: 399/1217 cut-off events. [2023-08-31 19:09:28,802 INFO L131 PetriNetUnfolder]: For 13426/13451 co-relation queries the response was YES. [2023-08-31 19:09:28,808 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. [2023-08-31 19:09:28,811 INFO L137 encePairwiseOnDemand]: 412/420 looper letters, 116 selfloop transitions, 13 changer transitions 82/259 dead transitions. [2023-08-31 19:09:28,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 259 transitions, 5092 flow [2023-08-31 19:09:28,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:09:28,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:09:28,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1599 transitions. [2023-08-31 19:09:28,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.423015873015873 [2023-08-31 19:09:28,812 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1599 transitions. [2023-08-31 19:09:28,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1599 transitions. [2023-08-31 19:09:28,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:09:28,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1599 transitions. [2023-08-31 19:09:28,814 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) [2023-08-31 19:09:28,815 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) [2023-08-31 19:09:28,815 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) [2023-08-31 19:09:28,815 INFO L175 Difference]: Start difference. First operand has 211 places, 187 transitions, 3421 flow. Second operand 9 states and 1599 transitions. [2023-08-31 19:09:28,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 259 transitions, 5092 flow [2023-08-31 19:09:28,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 259 transitions, 4796 flow, removed 1 selfloop flow, removed 9 redundant places. [2023-08-31 19:09:28,842 INFO L231 Difference]: Finished difference. Result has 213 places, 174 transitions, 3022 flow [2023-08-31 19:09:28,842 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} [2023-08-31 19:09:28,842 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 127 predicate places. [2023-08-31 19:09:28,843 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 174 transitions, 3022 flow [2023-08-31 19:09:28,843 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) [2023-08-31 19:09:28,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:09:28,843 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] [2023-08-31 19:09:28,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-31 19:09:28,843 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)] === [2023-08-31 19:09:28,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:09:28,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1697299609, now seen corresponding path program 4 times [2023-08-31 19:09:28,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:09:28,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143452983] [2023-08-31 19:09:28,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:09:28,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:09:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:09:29,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:09:29,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:09:29,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143452983] [2023-08-31 19:09:29,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143452983] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:09:29,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:09:29,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:09:29,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60566938] [2023-08-31 19:09:29,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:09:29,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:09:29,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:09:29,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:09:29,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:09:30,175 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 420 [2023-08-31 19:09:30,175 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) [2023-08-31 19:09:30,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:09:30,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 420 [2023-08-31 19:09:30,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:09:30,569 INFO L130 PetriNetUnfolder]: 242/882 cut-off events. [2023-08-31 19:09:30,569 INFO L131 PetriNetUnfolder]: For 9530/9543 co-relation queries the response was YES. [2023-08-31 19:09:30,573 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. [2023-08-31 19:09:30,574 INFO L137 encePairwiseOnDemand]: 411/420 looper letters, 85 selfloop transitions, 43 changer transitions 56/232 dead transitions. [2023-08-31 19:09:30,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 232 transitions, 4457 flow [2023-08-31 19:09:30,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:09:30,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:09:30,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1768 transitions. [2023-08-31 19:09:30,576 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42095238095238097 [2023-08-31 19:09:30,576 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1768 transitions. [2023-08-31 19:09:30,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1768 transitions. [2023-08-31 19:09:30,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:09:30,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1768 transitions. [2023-08-31 19:09:30,578 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) [2023-08-31 19:09:30,579 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) [2023-08-31 19:09:30,579 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) [2023-08-31 19:09:30,580 INFO L175 Difference]: Start difference. First operand has 213 places, 174 transitions, 3022 flow. Second operand 10 states and 1768 transitions. [2023-08-31 19:09:30,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 232 transitions, 4457 flow [2023-08-31 19:09:30,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 232 transitions, 4379 flow, removed 20 selfloop flow, removed 9 redundant places. [2023-08-31 19:09:30,602 INFO L231 Difference]: Finished difference. Result has 213 places, 174 transitions, 3104 flow [2023-08-31 19:09:30,602 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} [2023-08-31 19:09:30,603 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 127 predicate places. [2023-08-31 19:09:30,603 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 174 transitions, 3104 flow [2023-08-31 19:09:30,603 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) [2023-08-31 19:09:30,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:09:30,603 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] [2023-08-31 19:09:30,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-31 19:09:30,603 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)] === [2023-08-31 19:09:30,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:09:30,604 INFO L85 PathProgramCache]: Analyzing trace with hash 2052110419, now seen corresponding path program 5 times [2023-08-31 19:09:30,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:09:30,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577809026] [2023-08-31 19:09:30,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:09:30,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:09:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:09:31,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:09:31,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:09:31,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577809026] [2023-08-31 19:09:31,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577809026] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:09:31,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:09:31,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:09:31,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578079753] [2023-08-31 19:09:31,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:09:31,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:09:31,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:09:31,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:09:31,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:09:31,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 420 [2023-08-31 19:09:31,813 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) [2023-08-31 19:09:31,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:09:31,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 420 [2023-08-31 19:09:31,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:09:32,104 INFO L130 PetriNetUnfolder]: 171/677 cut-off events. [2023-08-31 19:09:32,104 INFO L131 PetriNetUnfolder]: For 7299/7312 co-relation queries the response was YES. [2023-08-31 19:09:32,108 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. [2023-08-31 19:09:32,108 INFO L137 encePairwiseOnDemand]: 412/420 looper letters, 0 selfloop transitions, 0 changer transitions 198/198 dead transitions. [2023-08-31 19:09:32,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 198 transitions, 3704 flow [2023-08-31 19:09:32,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:09:32,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:09:32,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1591 transitions. [2023-08-31 19:09:32,110 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4208994708994709 [2023-08-31 19:09:32,111 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1591 transitions. [2023-08-31 19:09:32,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1591 transitions. [2023-08-31 19:09:32,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:09:32,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1591 transitions. [2023-08-31 19:09:32,113 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) [2023-08-31 19:09:32,115 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) [2023-08-31 19:09:32,115 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) [2023-08-31 19:09:32,115 INFO L175 Difference]: Start difference. First operand has 213 places, 174 transitions, 3104 flow. Second operand 9 states and 1591 transitions. [2023-08-31 19:09:32,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 198 transitions, 3704 flow [2023-08-31 19:09:32,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 198 transitions, 3598 flow, removed 1 selfloop flow, removed 9 redundant places. [2023-08-31 19:09:32,144 INFO L231 Difference]: Finished difference. Result has 209 places, 0 transitions, 0 flow [2023-08-31 19:09:32,144 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} [2023-08-31 19:09:32,144 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 123 predicate places. [2023-08-31 19:09:32,144 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 0 transitions, 0 flow [2023-08-31 19:09:32,145 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) [2023-08-31 19:09:32,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 25 remaining) [2023-08-31 19:09:32,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-08-31 19:09:32,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-08-31 19:09:32,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-08-31 19:09:32,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-08-31 19:09:32,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-08-31 19:09:32,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-08-31 19:09:32,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-08-31 19:09:32,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-08-31 19:09:32,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-08-31 19:09:32,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-08-31 19:09:32,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-08-31 19:09:32,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-08-31 19:09:32,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-08-31 19:09:32,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2023-08-31 19:09:32,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 25 remaining) [2023-08-31 19:09:32,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2023-08-31 19:09:32,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2023-08-31 19:09:32,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-08-31 19:09:32,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-08-31 19:09:32,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-08-31 19:09:32,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-08-31 19:09:32,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-08-31 19:09:32,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-08-31 19:09:32,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-08-31 19:09:32,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-31 19:09:32,151 INFO L445 BasicCegarLoop]: Path program histogram: [8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:09:32,155 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:09:32,155 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:09:32,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:09:32 BasicIcfg [2023-08-31 19:09:32,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:09:32,158 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:09:32,158 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:09:32,158 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:09:32,159 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:04:27" (3/4) ... [2023-08-31 19:09:32,161 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 19:09:32,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2023-08-31 19:09:32,170 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 66 nodes and edges [2023-08-31 19:09:32,171 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-31 19:09:32,171 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-08-31 19:09:32,172 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 19:09:32,209 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 19:09:32,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:09:32,210 INFO L158 Benchmark]: Toolchain (without parser) took 306528.95ms. Allocated memory was 77.6MB in the beginning and 7.2GB in the end (delta: 7.2GB). Free memory was 48.5MB in the beginning and 5.1GB in the end (delta: -5.1GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2023-08-31 19:09:32,210 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 77.6MB. Free memory is still 54.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:09:32,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1039.85ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 48.3MB in the beginning and 55.4MB in the end (delta: -7.1MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2023-08-31 19:09:32,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.07ms. Allocated memory is still 98.6MB. Free memory was 55.4MB in the beginning and 51.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 19:09:32,211 INFO L158 Benchmark]: Boogie Preprocessor took 68.77ms. Allocated memory is still 98.6MB. Free memory was 51.3MB in the beginning and 46.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 19:09:32,211 INFO L158 Benchmark]: RCFGBuilder took 1033.82ms. Allocated memory is still 98.6MB. Free memory was 46.6MB in the beginning and 54.8MB in the end (delta: -8.2MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2023-08-31 19:09:32,211 INFO L158 Benchmark]: TraceAbstraction took 304244.77ms. Allocated memory was 98.6MB in the beginning and 7.2GB in the end (delta: 7.1GB). Free memory was 54.2MB in the beginning and 5.1GB in the end (delta: -5.1GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2023-08-31 19:09:32,212 INFO L158 Benchmark]: Witness Printer took 51.29ms. Allocated memory is still 7.2GB. Free memory was 5.1GB in the beginning and 5.1GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 19:09:32,213 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 77.6MB. Free memory is still 54.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1039.85ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 48.3MB in the beginning and 55.4MB in the end (delta: -7.1MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.07ms. Allocated memory is still 98.6MB. Free memory was 55.4MB in the beginning and 51.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.77ms. Allocated memory is still 98.6MB. Free memory was 51.3MB in the beginning and 46.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1033.82ms. Allocated memory is still 98.6MB. Free memory was 46.6MB in the beginning and 54.8MB in the end (delta: -8.2MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * TraceAbstraction took 304244.77ms. Allocated memory was 98.6MB in the beginning and 7.2GB in the end (delta: 7.1GB). Free memory was 54.2MB in the beginning and 5.1GB in the end (delta: -5.1GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. * Witness Printer took 51.29ms. Allocated memory is still 7.2GB. Free memory was 5.1GB in the beginning and 5.1GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.4s, 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: 304.1s, OverallIterations: 32, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 238.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 48.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15662 SdHoareTripleChecker+Valid, 46.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12567 mSDsluCounter, 8912 SdHoareTripleChecker+Invalid, 41.4s 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, 15.8s 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! [2023-08-31 19:09:32,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE