./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.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/pthread/singleton_with-uninit-problems.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 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 --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 11:20:14,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 11:20:14,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 11:20:14,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 11:20:14,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 11:20:14,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 11:20:14,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 11:20:14,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 11:20:14,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 11:20:14,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 11:20:14,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 11:20:14,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 11:20:14,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 11:20:14,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 11:20:14,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 11:20:14,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 11:20:14,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 11:20:14,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 11:20:14,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 11:20:14,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 11:20:14,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 11:20:14,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 11:20:14,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 11:20:14,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 11:20:14,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 11:20:14,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 11:20:14,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 11:20:14,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 11:20:14,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 11:20:14,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 11:20:14,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 11:20:14,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 11:20:14,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 11:20:14,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 11:20:14,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 11:20:14,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 11:20:14,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 11:20:14,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 11:20:14,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 11:20:14,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 11:20:14,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 11:20:14,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 11:20:14,921 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 11:20:14,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 11:20:14,922 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 11:20:14,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 11:20:14,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 11:20:14,923 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 11:20:14,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 11:20:14,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 11:20:14,924 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 11:20:14,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 11:20:14,925 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 11:20:14,925 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 11:20:14,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 11:20:14,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 11:20:14,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 11:20:14,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 11:20:14,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 11:20:14,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 11:20:14,927 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 11:20:14,927 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 11:20:14,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 11:20:14,927 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 11:20:14,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 11:20:14,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 11:20:14,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 11:20:14,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 11:20:14,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 11:20:14,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 11:20:14,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 11:20:14,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 11:20:14,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 11:20:14,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 11:20:14,929 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 11:20:14,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 11:20:14,930 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 11:20:14,930 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 11:20:14,930 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 11:20:14,930 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 11:20:15,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 11:20:15,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 11:20:15,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 11:20:15,260 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 11:20:15,260 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 11:20:15,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2023-08-31 11:20:16,313 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 11:20:16,626 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 11:20:16,629 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2023-08-31 11:20:16,649 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccf319265/bbab95fbc71b4671befcf2f17b418cb8/FLAG6e0698e94 [2023-08-31 11:20:16,661 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccf319265/bbab95fbc71b4671befcf2f17b418cb8 [2023-08-31 11:20:16,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 11:20:16,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 11:20:16,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 11:20:16,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 11:20:16,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 11:20:16,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:20:16" (1/1) ... [2023-08-31 11:20:16,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@163fb6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:20:16, skipping insertion in model container [2023-08-31 11:20:16,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:20:16" (1/1) ... [2023-08-31 11:20:16,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 11:20:16,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 11:20:16,932 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-31 11:20:17,138 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2023-08-31 11:20:17,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 11:20:17,170 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 11:20:17,193 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-31 11:20:17,261 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2023-08-31 11:20:17,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 11:20:17,335 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 11:20:17,335 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 11:20:17,336 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 11:20:17,341 INFO L208 MainTranslator]: Completed translation [2023-08-31 11:20:17,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:20:17 WrapperNode [2023-08-31 11:20:17,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 11:20:17,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 11:20:17,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 11:20:17,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 11:20:17,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:20:17" (1/1) ... [2023-08-31 11:20:17,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:20:17" (1/1) ... [2023-08-31 11:20:17,409 INFO L138 Inliner]: procedures = 325, calls = 53, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2023-08-31 11:20:17,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 11:20:17,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 11:20:17,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 11:20:17,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 11:20:17,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:20:17" (1/1) ... [2023-08-31 11:20:17,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:20:17" (1/1) ... [2023-08-31 11:20:17,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:20:17" (1/1) ... [2023-08-31 11:20:17,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:20:17" (1/1) ... [2023-08-31 11:20:17,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:20:17" (1/1) ... [2023-08-31 11:20:17,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:20:17" (1/1) ... [2023-08-31 11:20:17,465 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:20:17" (1/1) ... [2023-08-31 11:20:17,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:20:17" (1/1) ... [2023-08-31 11:20:17,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 11:20:17,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 11:20:17,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 11:20:17,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 11:20:17,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:20:17" (1/1) ... [2023-08-31 11:20:17,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 11:20:17,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 11:20:17,506 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 11:20:17,529 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 11:20:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 11:20:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 11:20:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 11:20:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 11:20:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 11:20:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2023-08-31 11:20:17,546 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2023-08-31 11:20:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 11:20:17,547 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 11:20:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 11:20:17,547 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 11:20:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-31 11:20:17,547 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-31 11:20:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 11:20:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 11:20:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 11:20:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 11:20:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 11:20:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 11:20:17,550 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 11:20:17,774 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 11:20:17,776 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 11:20:18,092 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 11:20:18,121 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 11:20:18,122 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 11:20:18,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:20:18 BoogieIcfgContainer [2023-08-31 11:20:18,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 11:20:18,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 11:20:18,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 11:20:18,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 11:20:18,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 11:20:16" (1/3) ... [2023-08-31 11:20:18,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335f25ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:20:18, skipping insertion in model container [2023-08-31 11:20:18,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:20:17" (2/3) ... [2023-08-31 11:20:18,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335f25ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:20:18, skipping insertion in model container [2023-08-31 11:20:18,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:20:18" (3/3) ... [2023-08-31 11:20:18,130 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2023-08-31 11:20:18,137 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 11:20:18,145 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 11:20:18,145 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2023-08-31 11:20:18,145 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 11:20:18,277 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2023-08-31 11:20:18,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 288 places, 279 transitions, 665 flow [2023-08-31 11:20:18,410 INFO L130 PetriNetUnfolder]: 7/192 cut-off events. [2023-08-31 11:20:18,410 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-31 11:20:18,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 192 events. 7/192 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 144 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2023-08-31 11:20:18,416 INFO L82 GeneralOperation]: Start removeDead. Operand has 288 places, 279 transitions, 665 flow [2023-08-31 11:20:18,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 174 transitions, 399 flow [2023-08-31 11:20:18,428 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 11:20:18,438 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 174 transitions, 399 flow [2023-08-31 11:20:18,444 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 174 transitions, 399 flow [2023-08-31 11:20:18,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 174 transitions, 399 flow [2023-08-31 11:20:18,504 INFO L130 PetriNetUnfolder]: 5/174 cut-off events. [2023-08-31 11:20:18,504 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-31 11:20:18,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 174 events. 5/174 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 115 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2023-08-31 11:20:18,509 INFO L119 LiptonReduction]: Number of co-enabled transitions 4608 [2023-08-31 11:20:21,560 INFO L134 LiptonReduction]: Checked pairs total: 20329 [2023-08-31 11:20:21,561 INFO L136 LiptonReduction]: Total number of compositions: 100 [2023-08-31 11:20:21,573 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 11:20:21,578 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;@5efcd0e1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 11:20:21,579 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-08-31 11:20:21,583 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-08-31 11:20:21,583 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 11:20:21,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:20:21,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 11:20:21,584 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-31 11:20:21,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:20:21,588 INFO L85 PathProgramCache]: Analyzing trace with hash 653699947, now seen corresponding path program 1 times [2023-08-31 11:20:21,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:20:21,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628418336] [2023-08-31 11:20:21,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:20:21,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:20:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:20:21,774 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 11:20:21,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:20:21,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628418336] [2023-08-31 11:20:21,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628418336] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:20:21,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:20:21,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-31 11:20:21,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391208323] [2023-08-31 11:20:21,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:20:21,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 11:20:21,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:20:21,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 11:20:21,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 11:20:21,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 381 [2023-08-31 11:20:21,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 88 transitions, 227 flow. Second operand has 2 states, 2 states have (on average 238.5) internal successors, (477), 2 states have internal predecessors, (477), 0 states have call successors, (0), 0 states 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 11:20:21,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:20:21,818 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 381 [2023-08-31 11:20:21,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:20:21,954 INFO L130 PetriNetUnfolder]: 317/715 cut-off events. [2023-08-31 11:20:21,954 INFO L131 PetriNetUnfolder]: For 101/105 co-relation queries the response was YES. [2023-08-31 11:20:21,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1341 conditions, 715 events. 317/715 cut-off events. For 101/105 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2656 event pairs, 285 based on Foata normal form. 1/637 useless extension candidates. Maximal degree in co-relation 1324. Up to 488 conditions per place. [2023-08-31 11:20:21,962 INFO L137 encePairwiseOnDemand]: 368/381 looper letters, 31 selfloop transitions, 0 changer transitions 1/75 dead transitions. [2023-08-31 11:20:21,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 75 transitions, 265 flow [2023-08-31 11:20:21,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 11:20:21,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 11:20:21,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 517 transitions. [2023-08-31 11:20:21,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.678477690288714 [2023-08-31 11:20:21,975 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 517 transitions. [2023-08-31 11:20:21,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 517 transitions. [2023-08-31 11:20:21,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:20:21,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 517 transitions. [2023-08-31 11:20:21,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 258.5) internal successors, (517), 2 states have internal predecessors, (517), 0 states have call successors, (0), 0 states 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 11:20:21,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states 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 11:20:21,986 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states 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 11:20:21,988 INFO L175 Difference]: Start difference. First operand has 102 places, 88 transitions, 227 flow. Second operand 2 states and 517 transitions. [2023-08-31 11:20:21,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 75 transitions, 265 flow [2023-08-31 11:20:21,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 231 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-08-31 11:20:21,995 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 164 flow [2023-08-31 11:20:21,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=164, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2023-08-31 11:20:21,999 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, -24 predicate places. [2023-08-31 11:20:21,999 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 164 flow [2023-08-31 11:20:22,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 238.5) internal successors, (477), 2 states have internal predecessors, (477), 0 states have call successors, (0), 0 states 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 11:20:22,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:20:22,000 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:20:22,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 11:20:22,001 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-31 11:20:22,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:20:22,001 INFO L85 PathProgramCache]: Analyzing trace with hash 142889494, now seen corresponding path program 1 times [2023-08-31 11:20:22,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:20:22,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967975612] [2023-08-31 11:20:22,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:20:22,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:20:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:20:22,380 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 11:20:22,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:20:22,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967975612] [2023-08-31 11:20:22,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967975612] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:20:22,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:20:22,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 11:20:22,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385470333] [2023-08-31 11:20:22,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:20:22,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 11:20:22,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:20:22,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 11:20:22,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 11:20:22,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 381 [2023-08-31 11:20:22,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 228.33333333333334) internal successors, (1370), 6 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states 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 11:20:22,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:20:22,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 381 [2023-08-31 11:20:22,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:20:23,470 INFO L130 PetriNetUnfolder]: 2227/4664 cut-off events. [2023-08-31 11:20:23,470 INFO L131 PetriNetUnfolder]: For 202/215 co-relation queries the response was YES. [2023-08-31 11:20:23,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8070 conditions, 4664 events. 2227/4664 cut-off events. For 202/215 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 30788 event pairs, 890 based on Foata normal form. 1/4136 useless extension candidates. Maximal degree in co-relation 8067. Up to 2312 conditions per place. [2023-08-31 11:20:23,491 INFO L137 encePairwiseOnDemand]: 371/381 looper letters, 120 selfloop transitions, 21 changer transitions 12/190 dead transitions. [2023-08-31 11:20:23,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 190 transitions, 762 flow [2023-08-31 11:20:23,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 11:20:23,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 11:20:23,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1516 transitions. [2023-08-31 11:20:23,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.663167104111986 [2023-08-31 11:20:23,496 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1516 transitions. [2023-08-31 11:20:23,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1516 transitions. [2023-08-31 11:20:23,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:20:23,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1516 transitions. [2023-08-31 11:20:23,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 252.66666666666666) internal successors, (1516), 6 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states 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 11:20:23,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states 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 11:20:23,505 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states 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 11:20:23,505 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 164 flow. Second operand 6 states and 1516 transitions. [2023-08-31 11:20:23,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 190 transitions, 762 flow [2023-08-31 11:20:23,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 190 transitions, 762 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 11:20:23,510 INFO L231 Difference]: Finished difference. Result has 87 places, 94 transitions, 306 flow [2023-08-31 11:20:23,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=87, PETRI_TRANSITIONS=94} [2023-08-31 11:20:23,511 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, -15 predicate places. [2023-08-31 11:20:23,511 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 94 transitions, 306 flow [2023-08-31 11:20:23,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 228.33333333333334) internal successors, (1370), 6 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states 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 11:20:23,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:20:23,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:20:23,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 11:20:23,513 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-31 11:20:23,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:20:23,513 INFO L85 PathProgramCache]: Analyzing trace with hash 724689241, now seen corresponding path program 1 times [2023-08-31 11:20:23,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:20:23,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542072643] [2023-08-31 11:20:23,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:20:23,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:20:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:20:23,803 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 11:20:23,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:20:23,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542072643] [2023-08-31 11:20:23,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542072643] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:20:23,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:20:23,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 11:20:23,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792916033] [2023-08-31 11:20:23,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:20:23,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 11:20:23,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:20:23,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 11:20:23,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 11:20:24,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 381 [2023-08-31 11:20:24,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 94 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 229.5) internal successors, (1377), 6 states have internal predecessors, (1377), 0 states have call successors, (0), 0 states 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 11:20:24,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:20:24,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 381 [2023-08-31 11:20:24,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:20:24,537 INFO L130 PetriNetUnfolder]: 1593/2722 cut-off events. [2023-08-31 11:20:24,538 INFO L131 PetriNetUnfolder]: For 1799/2422 co-relation queries the response was YES. [2023-08-31 11:20:24,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7474 conditions, 2722 events. 1593/2722 cut-off events. For 1799/2422 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 13642 event pairs, 288 based on Foata normal form. 2/2488 useless extension candidates. Maximal degree in co-relation 7466. Up to 1837 conditions per place. [2023-08-31 11:20:24,559 INFO L137 encePairwiseOnDemand]: 372/381 looper letters, 62 selfloop transitions, 24 changer transitions 0/128 dead transitions. [2023-08-31 11:20:24,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 128 transitions, 621 flow [2023-08-31 11:20:24,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 11:20:24,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 11:20:24,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1423 transitions. [2023-08-31 11:20:24,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6224846894138233 [2023-08-31 11:20:24,579 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1423 transitions. [2023-08-31 11:20:24,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1423 transitions. [2023-08-31 11:20:24,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:20:24,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1423 transitions. [2023-08-31 11:20:24,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 237.16666666666666) internal successors, (1423), 6 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states 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 11:20:24,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states 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 11:20:24,588 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states 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 11:20:24,588 INFO L175 Difference]: Start difference. First operand has 87 places, 94 transitions, 306 flow. Second operand 6 states and 1423 transitions. [2023-08-31 11:20:24,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 128 transitions, 621 flow [2023-08-31 11:20:24,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 128 transitions, 621 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 11:20:24,603 INFO L231 Difference]: Finished difference. Result has 92 places, 113 transitions, 525 flow [2023-08-31 11:20:24,603 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=525, PETRI_PLACES=92, PETRI_TRANSITIONS=113} [2023-08-31 11:20:24,604 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, -10 predicate places. [2023-08-31 11:20:24,607 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 113 transitions, 525 flow [2023-08-31 11:20:24,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.5) internal successors, (1377), 6 states have internal predecessors, (1377), 0 states have call successors, (0), 0 states 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 11:20:24,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:20:24,608 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] [2023-08-31 11:20:24,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 11:20:24,608 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-31 11:20:24,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:20:24,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1433797277, now seen corresponding path program 1 times [2023-08-31 11:20:24,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:20:24,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16669699] [2023-08-31 11:20:24,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:20:24,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:20:24,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:20:25,353 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 11:20:25,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:20:25,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16669699] [2023-08-31 11:20:25,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16669699] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:20:25,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:20:25,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 11:20:25,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985809802] [2023-08-31 11:20:25,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:20:25,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 11:20:25,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:20:25,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 11:20:25,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-08-31 11:20:26,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 381 [2023-08-31 11:20:26,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 113 transitions, 525 flow. Second operand has 11 states, 11 states have (on average 213.54545454545453) internal successors, (2349), 11 states have internal predecessors, (2349), 0 states have call successors, (0), 0 states 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 11:20:26,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:20:26,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 381 [2023-08-31 11:20:26,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:20:27,977 INFO L130 PetriNetUnfolder]: 3044/6567 cut-off events. [2023-08-31 11:20:27,978 INFO L131 PetriNetUnfolder]: For 6290/6309 co-relation queries the response was YES. [2023-08-31 11:20:27,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17950 conditions, 6567 events. 3044/6567 cut-off events. For 6290/6309 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 47963 event pairs, 1008 based on Foata normal form. 138/6018 useless extension candidates. Maximal degree in co-relation 17940. Up to 2298 conditions per place. [2023-08-31 11:20:28,026 INFO L137 encePairwiseOnDemand]: 367/381 looper letters, 191 selfloop transitions, 42 changer transitions 27/296 dead transitions. [2023-08-31 11:20:28,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 296 transitions, 1700 flow [2023-08-31 11:20:28,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 11:20:28,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 11:20:28,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2765 transitions. [2023-08-31 11:20:28,033 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6047681539807525 [2023-08-31 11:20:28,033 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2765 transitions. [2023-08-31 11:20:28,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2765 transitions. [2023-08-31 11:20:28,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:20:28,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2765 transitions. [2023-08-31 11:20:28,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 230.41666666666666) internal successors, (2765), 12 states have internal predecessors, (2765), 0 states have call successors, (0), 0 states 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 11:20:28,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 381.0) internal successors, (4953), 13 states have internal predecessors, (4953), 0 states have call successors, (0), 0 states 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 11:20:28,053 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 381.0) internal successors, (4953), 13 states have internal predecessors, (4953), 0 states have call successors, (0), 0 states 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 11:20:28,053 INFO L175 Difference]: Start difference. First operand has 92 places, 113 transitions, 525 flow. Second operand 12 states and 2765 transitions. [2023-08-31 11:20:28,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 296 transitions, 1700 flow [2023-08-31 11:20:28,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 296 transitions, 1651 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 11:20:28,079 INFO L231 Difference]: Finished difference. Result has 106 places, 125 transitions, 746 flow [2023-08-31 11:20:28,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=746, PETRI_PLACES=106, PETRI_TRANSITIONS=125} [2023-08-31 11:20:28,081 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 4 predicate places. [2023-08-31 11:20:28,081 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 125 transitions, 746 flow [2023-08-31 11:20:28,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 213.54545454545453) internal successors, (2349), 11 states have internal predecessors, (2349), 0 states have call successors, (0), 0 states 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 11:20:28,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:20:28,082 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] [2023-08-31 11:20:28,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 11:20:28,083 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-31 11:20:28,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:20:28,084 INFO L85 PathProgramCache]: Analyzing trace with hash -864653799, now seen corresponding path program 2 times [2023-08-31 11:20:28,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:20:28,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380398530] [2023-08-31 11:20:28,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:20:28,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:20:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:20:28,494 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 11:20:28,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:20:28,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380398530] [2023-08-31 11:20:28,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380398530] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:20:28,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:20:28,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 11:20:28,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873686996] [2023-08-31 11:20:28,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:20:28,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 11:20:28,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:20:28,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 11:20:28,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-31 11:20:29,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 381 [2023-08-31 11:20:29,370 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 125 transitions, 746 flow. Second operand has 9 states, 9 states have (on average 226.77777777777777) internal successors, (2041), 9 states have internal predecessors, (2041), 0 states have call successors, (0), 0 states 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 11:20:29,370 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:20:29,370 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 381 [2023-08-31 11:20:29,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:20:30,281 INFO L130 PetriNetUnfolder]: 2871/5458 cut-off events. [2023-08-31 11:20:30,281 INFO L131 PetriNetUnfolder]: For 9331/9581 co-relation queries the response was YES. [2023-08-31 11:20:30,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18131 conditions, 5458 events. 2871/5458 cut-off events. For 9331/9581 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 33743 event pairs, 648 based on Foata normal form. 69/4949 useless extension candidates. Maximal degree in co-relation 18115. Up to 2294 conditions per place. [2023-08-31 11:20:30,318 INFO L137 encePairwiseOnDemand]: 375/381 looper letters, 175 selfloop transitions, 8 changer transitions 16/234 dead transitions. [2023-08-31 11:20:30,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 234 transitions, 1510 flow [2023-08-31 11:20:30,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 11:20:30,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 11:20:30,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1724 transitions. [2023-08-31 11:20:30,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6464191976003 [2023-08-31 11:20:30,323 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1724 transitions. [2023-08-31 11:20:30,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1724 transitions. [2023-08-31 11:20:30,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:20:30,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1724 transitions. [2023-08-31 11:20:30,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 246.28571428571428) internal successors, (1724), 7 states have internal predecessors, (1724), 0 states have call successors, (0), 0 states 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 11:20:30,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 381.0) internal successors, (3048), 8 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states 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 11:20:30,332 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 381.0) internal successors, (3048), 8 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states 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 11:20:30,332 INFO L175 Difference]: Start difference. First operand has 106 places, 125 transitions, 746 flow. Second operand 7 states and 1724 transitions. [2023-08-31 11:20:30,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 234 transitions, 1510 flow [2023-08-31 11:20:30,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 234 transitions, 1451 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-08-31 11:20:30,423 INFO L231 Difference]: Finished difference. Result has 102 places, 120 transitions, 684 flow [2023-08-31 11:20:30,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=684, PETRI_PLACES=102, PETRI_TRANSITIONS=120} [2023-08-31 11:20:30,424 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2023-08-31 11:20:30,424 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 120 transitions, 684 flow [2023-08-31 11:20:30,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 226.77777777777777) internal successors, (2041), 9 states have internal predecessors, (2041), 0 states have call successors, (0), 0 states 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 11:20:30,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:20:30,426 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] [2023-08-31 11:20:30,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 11:20:30,426 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-31 11:20:30,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:20:30,426 INFO L85 PathProgramCache]: Analyzing trace with hash 165991925, now seen corresponding path program 1 times [2023-08-31 11:20:30,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:20:30,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849467314] [2023-08-31 11:20:30,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:20:30,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:20:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:20:30,690 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 11:20:30,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:20:30,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849467314] [2023-08-31 11:20:30,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849467314] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:20:30,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:20:30,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 11:20:30,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904354750] [2023-08-31 11:20:30,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:20:30,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 11:20:30,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:20:30,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 11:20:30,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 11:20:31,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 381 [2023-08-31 11:20:31,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 120 transitions, 684 flow. Second operand has 6 states, 6 states have (on average 231.5) internal successors, (1389), 6 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states 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 11:20:31,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:20:31,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 381 [2023-08-31 11:20:31,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:20:32,558 INFO L130 PetriNetUnfolder]: 8768/14402 cut-off events. [2023-08-31 11:20:32,558 INFO L131 PetriNetUnfolder]: For 44140/44999 co-relation queries the response was YES. [2023-08-31 11:20:32,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51249 conditions, 14402 events. 8768/14402 cut-off events. For 44140/44999 co-relation queries the response was YES. Maximal size of possible extension queue 625. Compared 93137 event pairs, 1246 based on Foata normal form. 244/13380 useless extension candidates. Maximal degree in co-relation 51236. Up to 9712 conditions per place. [2023-08-31 11:20:32,651 INFO L137 encePairwiseOnDemand]: 371/381 looper letters, 90 selfloop transitions, 197 changer transitions 0/326 dead transitions. [2023-08-31 11:20:32,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 326 transitions, 3084 flow [2023-08-31 11:20:32,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 11:20:32,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 11:20:32,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1433 transitions. [2023-08-31 11:20:32,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6268591426071741 [2023-08-31 11:20:32,655 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1433 transitions. [2023-08-31 11:20:32,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1433 transitions. [2023-08-31 11:20:32,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:20:32,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1433 transitions. [2023-08-31 11:20:32,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 238.83333333333334) internal successors, (1433), 6 states have internal predecessors, (1433), 0 states have call successors, (0), 0 states 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 11:20:32,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states 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 11:20:32,663 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states 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 11:20:32,663 INFO L175 Difference]: Start difference. First operand has 102 places, 120 transitions, 684 flow. Second operand 6 states and 1433 transitions. [2023-08-31 11:20:32,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 326 transitions, 3084 flow [2023-08-31 11:20:32,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 326 transitions, 3067 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-31 11:20:32,699 INFO L231 Difference]: Finished difference. Result has 103 places, 316 transitions, 3361 flow [2023-08-31 11:20:32,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3361, PETRI_PLACES=103, PETRI_TRANSITIONS=316} [2023-08-31 11:20:32,701 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 1 predicate places. [2023-08-31 11:20:32,702 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 316 transitions, 3361 flow [2023-08-31 11:20:32,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 231.5) internal successors, (1389), 6 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states 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 11:20:32,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:20:32,704 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] [2023-08-31 11:20:32,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 11:20:32,704 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-31 11:20:32,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:20:32,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1043767927, now seen corresponding path program 1 times [2023-08-31 11:20:32,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:20:32,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805071382] [2023-08-31 11:20:32,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:20:32,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:20:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:20:33,078 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 11:20:33,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:20:33,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805071382] [2023-08-31 11:20:33,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805071382] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:20:33,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:20:33,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 11:20:33,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740849846] [2023-08-31 11:20:33,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:20:33,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 11:20:33,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:20:33,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 11:20:33,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-31 11:20:33,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 381 [2023-08-31 11:20:33,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 316 transitions, 3361 flow. Second operand has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states 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 11:20:33,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:20:33,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 381 [2023-08-31 11:20:33,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:20:35,284 INFO L130 PetriNetUnfolder]: 8197/14037 cut-off events. [2023-08-31 11:20:35,284 INFO L131 PetriNetUnfolder]: For 66771/68062 co-relation queries the response was YES. [2023-08-31 11:20:35,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60859 conditions, 14037 events. 8197/14037 cut-off events. For 66771/68062 co-relation queries the response was YES. Maximal size of possible extension queue 588. Compared 94896 event pairs, 682 based on Foata normal form. 912/13969 useless extension candidates. Maximal degree in co-relation 60842. Up to 7564 conditions per place. [2023-08-31 11:20:35,372 INFO L137 encePairwiseOnDemand]: 374/381 looper letters, 367 selfloop transitions, 12 changer transitions 0/418 dead transitions. [2023-08-31 11:20:35,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 418 transitions, 5217 flow [2023-08-31 11:20:35,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 11:20:35,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 11:20:35,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1865 transitions. [2023-08-31 11:20:35,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6118766404199475 [2023-08-31 11:20:35,377 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1865 transitions. [2023-08-31 11:20:35,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1865 transitions. [2023-08-31 11:20:35,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:20:35,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1865 transitions. [2023-08-31 11:20:35,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 233.125) internal successors, (1865), 8 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states 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 11:20:35,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states 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 11:20:35,386 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states 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 11:20:35,387 INFO L175 Difference]: Start difference. First operand has 103 places, 316 transitions, 3361 flow. Second operand 8 states and 1865 transitions. [2023-08-31 11:20:35,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 418 transitions, 5217 flow [2023-08-31 11:20:35,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 418 transitions, 5167 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 11:20:35,463 INFO L231 Difference]: Finished difference. Result has 108 places, 315 transitions, 3331 flow [2023-08-31 11:20:35,463 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=3307, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3331, PETRI_PLACES=108, PETRI_TRANSITIONS=315} [2023-08-31 11:20:35,464 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 6 predicate places. [2023-08-31 11:20:35,464 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 315 transitions, 3331 flow [2023-08-31 11:20:35,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states 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 11:20:35,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:20:35,465 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, 1, 1, 1, 1, 1] [2023-08-31 11:20:35,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 11:20:35,466 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-31 11:20:35,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:20:35,466 INFO L85 PathProgramCache]: Analyzing trace with hash -806090280, now seen corresponding path program 1 times [2023-08-31 11:20:35,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:20:35,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061417193] [2023-08-31 11:20:35,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:20:35,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:20:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:20:35,776 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 11:20:35,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:20:35,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061417193] [2023-08-31 11:20:35,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061417193] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:20:35,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:20:35,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 11:20:35,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482469338] [2023-08-31 11:20:35,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:20:35,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 11:20:35,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:20:35,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 11:20:35,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 11:20:36,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 381 [2023-08-31 11:20:36,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 315 transitions, 3331 flow. Second operand has 6 states, 6 states have (on average 231.83333333333334) internal successors, (1391), 6 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states 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 11:20:36,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:20:36,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 381 [2023-08-31 11:20:36,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:20:37,962 INFO L130 PetriNetUnfolder]: 11427/18163 cut-off events. [2023-08-31 11:20:37,962 INFO L131 PetriNetUnfolder]: For 110183/111480 co-relation queries the response was YES. [2023-08-31 11:20:38,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80206 conditions, 18163 events. 11427/18163 cut-off events. For 110183/111480 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 114733 event pairs, 1496 based on Foata normal form. 347/17361 useless extension candidates. Maximal degree in co-relation 80189. Up to 12207 conditions per place. [2023-08-31 11:20:38,085 INFO L137 encePairwiseOnDemand]: 372/381 looper letters, 280 selfloop transitions, 149 changer transitions 0/471 dead transitions. [2023-08-31 11:20:38,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 471 transitions, 5921 flow [2023-08-31 11:20:38,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 11:20:38,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 11:20:38,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1427 transitions. [2023-08-31 11:20:38,089 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6242344706911636 [2023-08-31 11:20:38,090 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1427 transitions. [2023-08-31 11:20:38,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1427 transitions. [2023-08-31 11:20:38,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:20:38,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1427 transitions. [2023-08-31 11:20:38,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 237.83333333333334) internal successors, (1427), 6 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states 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 11:20:38,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states 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 11:20:38,097 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states 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 11:20:38,097 INFO L175 Difference]: Start difference. First operand has 108 places, 315 transitions, 3331 flow. Second operand 6 states and 1427 transitions. [2023-08-31 11:20:38,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 471 transitions, 5921 flow [2023-08-31 11:20:38,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 471 transitions, 5899 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 11:20:38,163 INFO L231 Difference]: Finished difference. Result has 112 places, 463 transitions, 5699 flow [2023-08-31 11:20:38,164 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=3309, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5699, PETRI_PLACES=112, PETRI_TRANSITIONS=463} [2023-08-31 11:20:38,166 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 10 predicate places. [2023-08-31 11:20:38,166 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 463 transitions, 5699 flow [2023-08-31 11:20:38,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 231.83333333333334) internal successors, (1391), 6 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states 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 11:20:38,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:20:38,167 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, 1, 1, 1, 1, 1, 1] [2023-08-31 11:20:38,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 11:20:38,167 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-31 11:20:38,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:20:38,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1611855446, now seen corresponding path program 1 times [2023-08-31 11:20:38,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:20:38,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905897440] [2023-08-31 11:20:38,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:20:38,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:20:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:20:38,547 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 11:20:38,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:20:38,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905897440] [2023-08-31 11:20:38,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905897440] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:20:38,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:20:38,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 11:20:38,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350855094] [2023-08-31 11:20:38,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:20:38,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 11:20:38,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:20:38,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 11:20:38,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-31 11:20:39,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 381 [2023-08-31 11:20:39,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 463 transitions, 5699 flow. Second operand has 9 states, 9 states have (on average 228.66666666666666) internal successors, (2058), 9 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states 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 11:20:39,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:20:39,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 381 [2023-08-31 11:20:39,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:20:41,453 INFO L130 PetriNetUnfolder]: 11147/17953 cut-off events. [2023-08-31 11:20:41,453 INFO L131 PetriNetUnfolder]: For 138180/139429 co-relation queries the response was YES. [2023-08-31 11:20:41,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89219 conditions, 17953 events. 11147/17953 cut-off events. For 138180/139429 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 114978 event pairs, 1043 based on Foata normal form. 443/17335 useless extension candidates. Maximal degree in co-relation 89198. Up to 10497 conditions per place. [2023-08-31 11:20:41,598 INFO L137 encePairwiseOnDemand]: 374/381 looper letters, 487 selfloop transitions, 12 changer transitions 0/541 dead transitions. [2023-08-31 11:20:41,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 541 transitions, 7667 flow [2023-08-31 11:20:41,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 11:20:41,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 11:20:41,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1861 transitions. [2023-08-31 11:20:41,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6105643044619422 [2023-08-31 11:20:41,603 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1861 transitions. [2023-08-31 11:20:41,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1861 transitions. [2023-08-31 11:20:41,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:20:41,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1861 transitions. [2023-08-31 11:20:41,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 232.625) internal successors, (1861), 8 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states 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 11:20:41,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states 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 11:20:41,612 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states 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 11:20:41,612 INFO L175 Difference]: Start difference. First operand has 112 places, 463 transitions, 5699 flow. Second operand 8 states and 1861 transitions. [2023-08-31 11:20:41,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 541 transitions, 7667 flow [2023-08-31 11:20:41,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 541 transitions, 7341 flow, removed 144 selfloop flow, removed 1 redundant places. [2023-08-31 11:20:41,791 INFO L231 Difference]: Finished difference. Result has 117 places, 462 transitions, 5393 flow [2023-08-31 11:20:41,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=5369, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5393, PETRI_PLACES=117, PETRI_TRANSITIONS=462} [2023-08-31 11:20:41,792 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 15 predicate places. [2023-08-31 11:20:41,792 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 462 transitions, 5393 flow [2023-08-31 11:20:41,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 228.66666666666666) internal successors, (2058), 9 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states 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 11:20:41,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:20:41,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:20:41,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 11:20:41,794 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-31 11:20:41,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:20:41,794 INFO L85 PathProgramCache]: Analyzing trace with hash 230601007, now seen corresponding path program 1 times [2023-08-31 11:20:41,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:20:41,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625115891] [2023-08-31 11:20:41,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:20:41,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:20:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:20:42,144 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 11:20:42,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:20:42,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625115891] [2023-08-31 11:20:42,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625115891] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:20:42,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:20:42,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 11:20:42,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949034958] [2023-08-31 11:20:42,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:20:42,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 11:20:42,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:20:42,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 11:20:42,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 11:20:42,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 381 [2023-08-31 11:20:42,527 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 462 transitions, 5393 flow. Second operand has 6 states, 6 states have (on average 232.16666666666666) internal successors, (1393), 6 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states 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 11:20:42,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:20:42,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 381 [2023-08-31 11:20:42,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:20:44,215 INFO L130 PetriNetUnfolder]: 12143/19139 cut-off events. [2023-08-31 11:20:44,215 INFO L131 PetriNetUnfolder]: For 153754/155211 co-relation queries the response was YES. [2023-08-31 11:20:44,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92511 conditions, 19139 events. 12143/19139 cut-off events. For 153754/155211 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 119522 event pairs, 1451 based on Foata normal form. 403/18467 useless extension candidates. Maximal degree in co-relation 92490. Up to 12942 conditions per place. [2023-08-31 11:20:44,367 INFO L137 encePairwiseOnDemand]: 373/381 looper letters, 422 selfloop transitions, 149 changer transitions 0/616 dead transitions. [2023-08-31 11:20:44,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 616 transitions, 8429 flow [2023-08-31 11:20:44,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 11:20:44,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 11:20:44,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1421 transitions. [2023-08-31 11:20:44,370 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6216097987751531 [2023-08-31 11:20:44,370 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1421 transitions. [2023-08-31 11:20:44,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1421 transitions. [2023-08-31 11:20:44,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:20:44,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1421 transitions. [2023-08-31 11:20:44,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.83333333333334) internal successors, (1421), 6 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states 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 11:20:44,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states 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 11:20:44,376 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states 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 11:20:44,377 INFO L175 Difference]: Start difference. First operand has 117 places, 462 transitions, 5393 flow. Second operand 6 states and 1421 transitions. [2023-08-31 11:20:44,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 616 transitions, 8429 flow [2023-08-31 11:20:44,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 616 transitions, 8407 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 11:20:44,486 INFO L231 Difference]: Finished difference. Result has 121 places, 610 transitions, 7929 flow [2023-08-31 11:20:44,486 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=5371, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7929, PETRI_PLACES=121, PETRI_TRANSITIONS=610} [2023-08-31 11:20:44,487 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 19 predicate places. [2023-08-31 11:20:44,487 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 610 transitions, 7929 flow [2023-08-31 11:20:44,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 232.16666666666666) internal successors, (1393), 6 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states 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 11:20:44,487 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:20:44,488 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:20:44,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 11:20:44,488 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-31 11:20:44,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:20:44,488 INFO L85 PathProgramCache]: Analyzing trace with hash 301300874, now seen corresponding path program 1 times [2023-08-31 11:20:44,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:20:44,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24203416] [2023-08-31 11:20:44,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:20:44,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:20:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:20:44,875 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 11:20:44,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:20:44,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24203416] [2023-08-31 11:20:44,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24203416] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:20:44,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:20:44,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 11:20:44,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007069250] [2023-08-31 11:20:44,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:20:44,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 11:20:44,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:20:44,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 11:20:44,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-31 11:20:45,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 381 [2023-08-31 11:20:45,489 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 610 transitions, 7929 flow. Second operand has 9 states, 9 states have (on average 228.88888888888889) internal successors, (2060), 9 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states 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 11:20:45,489 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:20:45,489 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 381 [2023-08-31 11:20:45,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:20:47,413 INFO L130 PetriNetUnfolder]: 12368/19504 cut-off events. [2023-08-31 11:20:47,413 INFO L131 PetriNetUnfolder]: For 177388/178853 co-relation queries the response was YES. [2023-08-31 11:20:47,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100668 conditions, 19504 events. 12368/19504 cut-off events. For 177388/178853 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 122056 event pairs, 1263 based on Foata normal form. 443/18914 useless extension candidates. Maximal degree in co-relation 100643. Up to 11679 conditions per place. [2023-08-31 11:20:47,570 INFO L137 encePairwiseOnDemand]: 374/381 looper letters, 607 selfloop transitions, 12 changer transitions 0/664 dead transitions. [2023-08-31 11:20:47,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 664 transitions, 9913 flow [2023-08-31 11:20:47,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 11:20:47,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 11:20:47,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1857 transitions. [2023-08-31 11:20:47,576 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.609251968503937 [2023-08-31 11:20:47,576 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1857 transitions. [2023-08-31 11:20:47,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1857 transitions. [2023-08-31 11:20:47,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:20:47,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1857 transitions. [2023-08-31 11:20:47,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 232.125) internal successors, (1857), 8 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states 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 11:20:47,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states 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 11:20:47,584 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states 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 11:20:47,584 INFO L175 Difference]: Start difference. First operand has 121 places, 610 transitions, 7929 flow. Second operand 8 states and 1857 transitions. [2023-08-31 11:20:47,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 664 transitions, 9913 flow [2023-08-31 11:20:47,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 664 transitions, 9779 flow, removed 48 selfloop flow, removed 1 redundant places. [2023-08-31 11:20:47,754 INFO L231 Difference]: Finished difference. Result has 126 places, 609 transitions, 7815 flow [2023-08-31 11:20:47,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=7791, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=597, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7815, PETRI_PLACES=126, PETRI_TRANSITIONS=609} [2023-08-31 11:20:47,755 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 24 predicate places. [2023-08-31 11:20:47,755 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 609 transitions, 7815 flow [2023-08-31 11:20:47,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 228.88888888888889) internal successors, (2060), 9 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states 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 11:20:47,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:20:47,756 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, 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 11:20:47,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 11:20:47,756 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-31 11:20:47,756 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:20:47,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1934797365, now seen corresponding path program 1 times [2023-08-31 11:20:47,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:20:47,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640192386] [2023-08-31 11:20:47,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:20:47,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:20:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:20:48,197 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 11:20:48,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:20:48,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640192386] [2023-08-31 11:20:48,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640192386] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:20:48,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:20:48,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 11:20:48,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596904199] [2023-08-31 11:20:48,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:20:48,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 11:20:48,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:20:48,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 11:20:48,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 11:20:48,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 381 [2023-08-31 11:20:48,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 609 transitions, 7815 flow. Second operand has 6 states, 6 states have (on average 232.5) internal successors, (1395), 6 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states 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 11:20:48,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:20:48,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 381 [2023-08-31 11:20:48,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:20:50,736 INFO L130 PetriNetUnfolder]: 12633/19768 cut-off events. [2023-08-31 11:20:50,737 INFO L131 PetriNetUnfolder]: For 190355/191887 co-relation queries the response was YES. [2023-08-31 11:20:50,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102040 conditions, 19768 events. 12633/19768 cut-off events. For 190355/191887 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 122458 event pairs, 1508 based on Foata normal form. 419/19212 useless extension candidates. Maximal degree in co-relation 102015. Up to 13485 conditions per place. [2023-08-31 11:20:50,842 INFO L137 encePairwiseOnDemand]: 374/381 looper letters, 417 selfloop transitions, 101 changer transitions 147/713 dead transitions. [2023-08-31 11:20:50,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 713 transitions, 10633 flow [2023-08-31 11:20:50,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 11:20:50,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 11:20:50,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1415 transitions. [2023-08-31 11:20:50,845 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6189851268591426 [2023-08-31 11:20:50,845 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1415 transitions. [2023-08-31 11:20:50,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1415 transitions. [2023-08-31 11:20:50,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:20:50,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1415 transitions. [2023-08-31 11:20:50,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 235.83333333333334) internal successors, (1415), 6 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states 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 11:20:50,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states 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 11:20:50,849 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states 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 11:20:50,849 INFO L175 Difference]: Start difference. First operand has 126 places, 609 transitions, 7815 flow. Second operand 6 states and 1415 transitions. [2023-08-31 11:20:50,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 713 transitions, 10633 flow [2023-08-31 11:20:50,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 713 transitions, 10611 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 11:20:50,992 INFO L231 Difference]: Finished difference. Result has 130 places, 562 transitions, 7480 flow [2023-08-31 11:20:50,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=7793, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7480, PETRI_PLACES=130, PETRI_TRANSITIONS=562} [2023-08-31 11:20:50,993 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 28 predicate places. [2023-08-31 11:20:50,993 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 562 transitions, 7480 flow [2023-08-31 11:20:50,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 232.5) internal successors, (1395), 6 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states 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 11:20:50,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:20:50,993 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, 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 11:20:50,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 11:20:50,993 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-31 11:20:50,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:20:50,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1321419293, now seen corresponding path program 1 times [2023-08-31 11:20:50,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:20:50,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463323030] [2023-08-31 11:20:50,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:20:50,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:20:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:20:51,693 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 11:20:51,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:20:51,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463323030] [2023-08-31 11:20:51,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463323030] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:20:51,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:20:51,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 11:20:51,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097376709] [2023-08-31 11:20:51,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:20:51,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 11:20:51,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:20:51,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 11:20:51,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-31 11:20:52,278 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 381 [2023-08-31 11:20:52,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 562 transitions, 7480 flow. Second operand has 9 states, 9 states have (on average 218.11111111111111) internal successors, (1963), 9 states have internal predecessors, (1963), 0 states have call successors, (0), 0 states 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 11:20:52,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:20:52,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 381 [2023-08-31 11:20:52,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:20:54,101 INFO L130 PetriNetUnfolder]: 11107/18082 cut-off events. [2023-08-31 11:20:54,101 INFO L131 PetriNetUnfolder]: For 169262/170314 co-relation queries the response was YES. [2023-08-31 11:20:54,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93700 conditions, 18082 events. 11107/18082 cut-off events. For 169262/170314 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 117951 event pairs, 1263 based on Foata normal form. 316/17555 useless extension candidates. Maximal degree in co-relation 93671. Up to 11681 conditions per place. [2023-08-31 11:20:54,200 INFO L137 encePairwiseOnDemand]: 374/381 looper letters, 0 selfloop transitions, 0 changer transitions 568/568 dead transitions. [2023-08-31 11:20:54,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 568 transitions, 8530 flow [2023-08-31 11:20:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 11:20:54,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 11:20:54,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1765 transitions. [2023-08-31 11:20:54,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5790682414698163 [2023-08-31 11:20:54,204 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1765 transitions. [2023-08-31 11:20:54,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1765 transitions. [2023-08-31 11:20:54,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:20:54,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1765 transitions. [2023-08-31 11:20:54,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 220.625) internal successors, (1765), 8 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states 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 11:20:54,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states 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 11:20:54,211 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states 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 11:20:54,211 INFO L175 Difference]: Start difference. First operand has 130 places, 562 transitions, 7480 flow. Second operand 8 states and 1765 transitions. [2023-08-31 11:20:54,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 568 transitions, 8530 flow [2023-08-31 11:20:54,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 568 transitions, 8456 flow, removed 24 selfloop flow, removed 1 redundant places. [2023-08-31 11:20:54,402 INFO L231 Difference]: Finished difference. Result has 135 places, 0 transitions, 0 flow [2023-08-31 11:20:54,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=7402, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=561, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=135, PETRI_TRANSITIONS=0} [2023-08-31 11:20:54,403 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 33 predicate places. [2023-08-31 11:20:54,403 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 0 transitions, 0 flow [2023-08-31 11:20:54,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 218.11111111111111) internal successors, (1963), 9 states have internal predecessors, (1963), 0 states have call successors, (0), 0 states 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 11:20:54,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2023-08-31 11:20:54,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2023-08-31 11:20:54,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2023-08-31 11:20:54,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2023-08-31 11:20:54,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2023-08-31 11:20:54,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 40 remaining) [2023-08-31 11:20:54,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 40 remaining) [2023-08-31 11:20:54,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 40 remaining) [2023-08-31 11:20:54,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 40 remaining) [2023-08-31 11:20:54,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 40 remaining) [2023-08-31 11:20:54,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2023-08-31 11:20:54,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2023-08-31 11:20:54,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2023-08-31 11:20:54,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2023-08-31 11:20:54,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2023-08-31 11:20:54,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2023-08-31 11:20:54,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2023-08-31 11:20:54,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2023-08-31 11:20:54,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2023-08-31 11:20:54,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2023-08-31 11:20:54,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 40 remaining) [2023-08-31 11:20:54,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2023-08-31 11:20:54,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2023-08-31 11:20:54,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2023-08-31 11:20:54,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2023-08-31 11:20:54,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2023-08-31 11:20:54,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 40 remaining) [2023-08-31 11:20:54,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 40 remaining) [2023-08-31 11:20:54,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 40 remaining) [2023-08-31 11:20:54,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 40 remaining) [2023-08-31 11:20:54,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 40 remaining) [2023-08-31 11:20:54,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2023-08-31 11:20:54,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2023-08-31 11:20:54,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2023-08-31 11:20:54,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2023-08-31 11:20:54,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2023-08-31 11:20:54,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2023-08-31 11:20:54,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2023-08-31 11:20:54,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2023-08-31 11:20:54,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2023-08-31 11:20:54,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 11:20:54,416 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:20:54,420 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 11:20:54,420 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 11:20:54,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 11:20:54 BasicIcfg [2023-08-31 11:20:54,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 11:20:54,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 11:20:54,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 11:20:54,423 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 11:20:54,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:20:18" (3/4) ... [2023-08-31 11:20:54,425 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 11:20:54,429 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2023-08-31 11:20:54,429 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 11:20:54,429 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 11:20:54,430 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-31 11:20:54,433 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-08-31 11:20:54,433 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 11:20:54,434 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 11:20:54,434 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 11:20:54,455 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 11:20:54,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 11:20:54,456 INFO L158 Benchmark]: Toolchain (without parser) took 37791.94ms. Allocated memory was 83.9MB in the beginning and 3.1GB in the end (delta: 3.0GB). Free memory was 59.6MB in the beginning and 792.0MB in the end (delta: -732.4MB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2023-08-31 11:20:54,456 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory is still 38.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 11:20:54,457 INFO L158 Benchmark]: CACSL2BoogieTranslator took 676.47ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 45.6MB in the end (delta: 13.7MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2023-08-31 11:20:54,457 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.90ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 43.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 11:20:54,457 INFO L158 Benchmark]: Boogie Preprocessor took 65.21ms. Allocated memory is still 83.9MB. Free memory was 43.1MB in the beginning and 40.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 11:20:54,458 INFO L158 Benchmark]: RCFGBuilder took 647.71ms. Allocated memory is still 83.9MB. Free memory was 40.6MB in the beginning and 43.8MB in the end (delta: -3.1MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-08-31 11:20:54,458 INFO L158 Benchmark]: TraceAbstraction took 36296.95ms. Allocated memory was 83.9MB in the beginning and 3.1GB in the end (delta: 3.0GB). Free memory was 43.3MB in the beginning and 796.2MB in the end (delta: -752.9MB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2023-08-31 11:20:54,458 INFO L158 Benchmark]: Witness Printer took 33.11ms. Allocated memory is still 3.1GB. Free memory was 796.2MB in the beginning and 792.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 11:20:54,460 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory is still 38.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 676.47ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 45.6MB in the end (delta: 13.7MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.90ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 43.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.21ms. Allocated memory is still 83.9MB. Free memory was 43.1MB in the beginning and 40.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 647.71ms. Allocated memory is still 83.9MB. Free memory was 40.6MB in the beginning and 43.8MB in the end (delta: -3.1MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * TraceAbstraction took 36296.95ms. Allocated memory was 83.9MB in the beginning and 3.1GB in the end (delta: 3.0GB). Free memory was 43.3MB in the beginning and 796.2MB in the end (delta: -752.9MB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. * Witness Printer took 33.11ms. Allocated memory is still 3.1GB. Free memory was 796.2MB in the beginning and 792.0MB in the end (delta: 4.2MB). 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: 3.1s, 188 PlacesBefore, 102 PlacesAfterwards, 174 TransitionsBefore, 88 TransitionsAfterwards, 4608 CoEnabledTransitionPairs, 5 FixpointIterations, 29 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 100 TotalNumberOfCompositions, 20329 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7019, independent: 6477, independent conditional: 0, independent unconditional: 6477, dependent: 542, dependent conditional: 0, dependent unconditional: 542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1813, independent: 1728, independent conditional: 0, independent unconditional: 1728, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7019, independent: 4749, independent conditional: 0, independent unconditional: 4749, dependent: 457, dependent conditional: 0, dependent unconditional: 457, unknown: 1813, unknown conditional: 0, unknown unconditional: 1813] , Statistics on independence cache: Total cache size (in pairs): 309, Positive cache size: 251, Positive conditional cache size: 0, Positive unconditional cache size: 251, Negative cache size: 58, Negative conditional cache size: 0, Negative unconditional cache size: 58, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1148]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1153]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1154]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1155]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1156]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1127]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1163]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: 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 11 procedures, 323 locations, 40 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: 36.1s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 27.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5003 SdHoareTripleChecker+Valid, 8.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3341 mSDsluCounter, 1203 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1176 mSDsCounter, 2420 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12979 IncrementalHoareTripleChecker+Invalid, 15399 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2420 mSolverCounterUnsat, 27 mSDtfsCounter, 12979 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7929occurred in iteration=10, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 384 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 371 ConstructedInterpolants, 0 QuantifiedInterpolants, 2510 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 11:20:54,478 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