./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread/singleton.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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.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 ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-28 17:45:31,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 17:45:31,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 17:45:31,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 17:45:31,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 17:45:31,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 17:45:31,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 17:45:31,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 17:45:31,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 17:45:31,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 17:45:31,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 17:45:31,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 17:45:31,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 17:45:31,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 17:45:31,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 17:45:31,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 17:45:31,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 17:45:31,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 17:45:31,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 17:45:31,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 17:45:31,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 17:45:31,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 17:45:31,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 17:45:31,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 17:45:31,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 17:45:31,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 17:45:31,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 17:45:31,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 17:45:31,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 17:45:31,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 17:45:31,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 17:45:31,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 17:45:31,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 17:45:31,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 17:45:31,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 17:45:31,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 17:45:31,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 17:45:31,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 17:45:31,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 17:45:31,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 17:45:31,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 17:45:31,402 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 17:45:31,426 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 17:45:31,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 17:45:31,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 17:45:31,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 17:45:31,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 17:45:31,428 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 17:45:31,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 17:45:31,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 17:45:31,429 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 17:45:31,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 17:45:31,430 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 17:45:31,430 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 17:45:31,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 17:45:31,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 17:45:31,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 17:45:31,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 17:45:31,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 17:45:31,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 17:45:31,431 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 17:45:31,431 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 17:45:31,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 17:45:31,431 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 17:45:31,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 17:45:31,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 17:45:31,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 17:45:31,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 17:45:31,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:45:31,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 17:45:31,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 17:45:31,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 17:45:31,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 17:45:31,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 17:45:31,433 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 17:45:31,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 17:45:31,433 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 17:45:31,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 17:45:31,433 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 17:45:31,433 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 17:45:31,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 17:45:31,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 17:45:31,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 17:45:31,678 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 17:45:31,678 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 17:45:31,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.i [2023-08-28 17:45:32,634 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 17:45:32,833 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 17:45:32,834 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i [2023-08-28 17:45:32,845 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0fa723d4/b1ed69fd2b6e47ae9f01f5b24bd52527/FLAG41c70aace [2023-08-28 17:45:32,855 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0fa723d4/b1ed69fd2b6e47ae9f01f5b24bd52527 [2023-08-28 17:45:32,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 17:45:32,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 17:45:32,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 17:45:32,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 17:45:32,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 17:45:32,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:45:32" (1/1) ... [2023-08-28 17:45:32,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b98541c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:45:32, skipping insertion in model container [2023-08-28 17:45:32,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:45:32" (1/1) ... [2023-08-28 17:45:32,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 17:45:32,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 17:45:33,031 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-28 17:45:33,235 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.i[55547,55560] [2023-08-28 17:45:33,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:45:33,267 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 17:45:33,283 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-28 17:45:33,291 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.i[55547,55560] [2023-08-28 17:45:33,298 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:45:33,349 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 17:45:33,350 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 17:45:33,350 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 17:45:33,354 INFO L208 MainTranslator]: Completed translation [2023-08-28 17:45:33,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:45:33 WrapperNode [2023-08-28 17:45:33,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 17:45:33,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 17:45:33,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 17:45:33,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 17:45:33,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:45:33" (1/1) ... [2023-08-28 17:45:33,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:45:33" (1/1) ... [2023-08-28 17:45:33,402 INFO L138 Inliner]: procedures = 325, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2023-08-28 17:45:33,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 17:45:33,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 17:45:33,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 17:45:33,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 17:45:33,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:45:33" (1/1) ... [2023-08-28 17:45:33,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:45:33" (1/1) ... [2023-08-28 17:45:33,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:45:33" (1/1) ... [2023-08-28 17:45:33,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:45:33" (1/1) ... [2023-08-28 17:45:33,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:45:33" (1/1) ... [2023-08-28 17:45:33,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:45:33" (1/1) ... [2023-08-28 17:45:33,447 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:45:33" (1/1) ... [2023-08-28 17:45:33,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:45:33" (1/1) ... [2023-08-28 17:45:33,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 17:45:33,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 17:45:33,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 17:45:33,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 17:45:33,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:45:33" (1/1) ... [2023-08-28 17:45:33,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:45:33,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 17:45:33,483 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) [2023-08-28 17:45:33,493 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 [2023-08-28 17:45:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-28 17:45:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 17:45:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 17:45:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-28 17:45:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-28 17:45:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2023-08-28 17:45:33,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2023-08-28 17:45:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-28 17:45:33,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-28 17:45:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-28 17:45:33,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-28 17:45:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-28 17:45:33,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-28 17:45:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 17:45:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-28 17:45:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 17:45:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 17:45:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 17:45:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 17:45:33,516 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-28 17:45:33,684 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 17:45:33,685 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 17:45:33,909 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 17:45:33,949 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 17:45:33,951 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-28 17:45:33,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:45:33 BoogieIcfgContainer [2023-08-28 17:45:33,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 17:45:33,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 17:45:33,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 17:45:33,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 17:45:33,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 05:45:32" (1/3) ... [2023-08-28 17:45:33,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ab332d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:45:33, skipping insertion in model container [2023-08-28 17:45:33,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:45:33" (2/3) ... [2023-08-28 17:45:33,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ab332d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:45:33, skipping insertion in model container [2023-08-28 17:45:33,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:45:33" (3/3) ... [2023-08-28 17:45:33,963 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2023-08-28 17:45:33,968 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 17:45:33,973 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 17:45:33,974 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-08-28 17:45:33,974 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 17:45:34,142 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2023-08-28 17:45:34,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 266 transitions, 639 flow [2023-08-28 17:45:34,261 INFO L130 PetriNetUnfolder]: 6/179 cut-off events. [2023-08-28 17:45:34,262 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-28 17:45:34,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 179 events. 6/179 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 120 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2023-08-28 17:45:34,266 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 266 transitions, 639 flow [2023-08-28 17:45:34,271 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 165 transitions, 381 flow [2023-08-28 17:45:34,274 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 17:45:34,288 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 165 transitions, 381 flow [2023-08-28 17:45:34,290 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 165 transitions, 381 flow [2023-08-28 17:45:34,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 165 transitions, 381 flow [2023-08-28 17:45:34,328 INFO L130 PetriNetUnfolder]: 5/165 cut-off events. [2023-08-28 17:45:34,329 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-28 17:45:34,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 165 events. 5/165 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2023-08-28 17:45:34,333 INFO L119 LiptonReduction]: Number of co-enabled transitions 4608 [2023-08-28 17:45:36,504 INFO L134 LiptonReduction]: Checked pairs total: 20506 [2023-08-28 17:45:36,504 INFO L136 LiptonReduction]: Total number of compositions: 91 [2023-08-28 17:45:36,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 17:45:36,517 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;@4948f2d1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 17:45:36,517 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-28 17:45:36,519 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-08-28 17:45:36,519 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:45:36,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:45:36,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-28 17:45:36,520 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-28 17:45:36,523 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:45:36,524 INFO L85 PathProgramCache]: Analyzing trace with hash 618597485, now seen corresponding path program 1 times [2023-08-28 17:45:36,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:45:36,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928769897] [2023-08-28 17:45:36,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:45:36,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:45:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:45:36,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:45:36,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:45:36,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928769897] [2023-08-28 17:45:36,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928769897] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:45:36,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:45:36,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-28 17:45:36,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514438017] [2023-08-28 17:45:36,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:45:36,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 17:45:36,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:45:36,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 17:45:36,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 17:45:36,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 359 [2023-08-28 17:45:36,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 86 transitions, 223 flow. Second operand has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:36,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:45:36,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 359 [2023-08-28 17:45:36,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:45:36,802 INFO L130 PetriNetUnfolder]: 317/929 cut-off events. [2023-08-28 17:45:36,802 INFO L131 PetriNetUnfolder]: For 100/102 co-relation queries the response was YES. [2023-08-28 17:45:36,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1555 conditions, 929 events. 317/929 cut-off events. For 100/102 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4603 event pairs, 285 based on Foata normal form. 1/834 useless extension candidates. Maximal degree in co-relation 1538. Up to 488 conditions per place. [2023-08-28 17:45:36,811 INFO L137 encePairwiseOnDemand]: 348/359 looper letters, 31 selfloop transitions, 0 changer transitions 1/75 dead transitions. [2023-08-28 17:45:36,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 75 transitions, 265 flow [2023-08-28 17:45:36,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-28 17:45:36,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-28 17:45:36,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 489 transitions. [2023-08-28 17:45:36,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6810584958217271 [2023-08-28 17:45:36,821 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 489 transitions. [2023-08-28 17:45:36,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 489 transitions. [2023-08-28 17:45:36,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:45:36,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 489 transitions. [2023-08-28 17:45:36,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 244.5) internal successors, (489), 2 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:36,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:36,830 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:36,831 INFO L175 Difference]: Start difference. First operand has 100 places, 86 transitions, 223 flow. Second operand 2 states and 489 transitions. [2023-08-28 17:45:36,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 75 transitions, 265 flow [2023-08-28 17:45:36,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 231 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-08-28 17:45:36,836 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 164 flow [2023-08-28 17:45:36,837 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, 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} [2023-08-28 17:45:36,839 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -22 predicate places. [2023-08-28 17:45:36,840 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 164 flow [2023-08-28 17:45:36,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:36,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:45:36,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:45:36,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-28 17:45:36,841 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-28 17:45:36,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:45:36,841 INFO L85 PathProgramCache]: Analyzing trace with hash -2053521812, now seen corresponding path program 1 times [2023-08-28 17:45:36,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:45:36,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705761735] [2023-08-28 17:45:36,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:45:36,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:45:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:45:37,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:45:37,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:45:37,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705761735] [2023-08-28 17:45:37,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705761735] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:45:37,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:45:37,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-28 17:45:37,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340670939] [2023-08-28 17:45:37,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:45:37,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 17:45:37,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:45:37,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 17:45:37,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-28 17:45:37,551 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 359 [2023-08-28 17:45:37,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 215.33333333333334) internal successors, (1292), 6 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:37,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:45:37,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 359 [2023-08-28 17:45:37,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:45:38,058 INFO L130 PetriNetUnfolder]: 2227/4872 cut-off events. [2023-08-28 17:45:38,060 INFO L131 PetriNetUnfolder]: For 202/208 co-relation queries the response was YES. [2023-08-28 17:45:38,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8278 conditions, 4872 events. 2227/4872 cut-off events. For 202/208 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 33744 event pairs, 890 based on Foata normal form. 1/4352 useless extension candidates. Maximal degree in co-relation 8275. Up to 2312 conditions per place. [2023-08-28 17:45:38,075 INFO L137 encePairwiseOnDemand]: 349/359 looper letters, 120 selfloop transitions, 21 changer transitions 12/190 dead transitions. [2023-08-28 17:45:38,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 190 transitions, 762 flow [2023-08-28 17:45:38,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-28 17:45:38,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-28 17:45:38,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1438 transitions. [2023-08-28 17:45:38,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6675951717734447 [2023-08-28 17:45:38,079 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1438 transitions. [2023-08-28 17:45:38,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1438 transitions. [2023-08-28 17:45:38,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:45:38,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1438 transitions. [2023-08-28 17:45:38,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 239.66666666666666) internal successors, (1438), 6 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:38,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:38,088 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:38,088 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 164 flow. Second operand 6 states and 1438 transitions. [2023-08-28 17:45:38,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 190 transitions, 762 flow [2023-08-28 17:45:38,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 190 transitions, 762 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 17:45:38,092 INFO L231 Difference]: Finished difference. Result has 87 places, 94 transitions, 306 flow [2023-08-28 17:45:38,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, 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} [2023-08-28 17:45:38,093 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -13 predicate places. [2023-08-28 17:45:38,093 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 94 transitions, 306 flow [2023-08-28 17:45:38,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.33333333333334) internal successors, (1292), 6 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:38,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:45:38,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:45:38,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-28 17:45:38,094 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-28 17:45:38,096 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:45:38,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1288113000, now seen corresponding path program 1 times [2023-08-28 17:45:38,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:45:38,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816579190] [2023-08-28 17:45:38,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:45:38,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:45:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:45:38,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:45:38,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:45:38,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816579190] [2023-08-28 17:45:38,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816579190] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:45:38,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:45:38,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-28 17:45:38,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708902069] [2023-08-28 17:45:38,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:45:38,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 17:45:38,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:45:38,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 17:45:38,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-28 17:45:38,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 359 [2023-08-28 17:45:38,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 94 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 216.5) internal successors, (1299), 6 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:38,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:45:38,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 359 [2023-08-28 17:45:38,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:45:38,813 INFO L130 PetriNetUnfolder]: 1593/2727 cut-off events. [2023-08-28 17:45:38,813 INFO L131 PetriNetUnfolder]: For 1766/2389 co-relation queries the response was YES. [2023-08-28 17:45:38,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7488 conditions, 2727 events. 1593/2727 cut-off events. For 1766/2389 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 13708 event pairs, 288 based on Foata normal form. 2/2493 useless extension candidates. Maximal degree in co-relation 7480. Up to 1837 conditions per place. [2023-08-28 17:45:38,827 INFO L137 encePairwiseOnDemand]: 350/359 looper letters, 62 selfloop transitions, 24 changer transitions 0/128 dead transitions. [2023-08-28 17:45:38,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 128 transitions, 621 flow [2023-08-28 17:45:38,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-28 17:45:38,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-28 17:45:38,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1345 transitions. [2023-08-28 17:45:38,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6244196843082637 [2023-08-28 17:45:38,830 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1345 transitions. [2023-08-28 17:45:38,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1345 transitions. [2023-08-28 17:45:38,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:45:38,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1345 transitions. [2023-08-28 17:45:38,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 224.16666666666666) internal successors, (1345), 6 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:38,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:38,836 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:38,837 INFO L175 Difference]: Start difference. First operand has 87 places, 94 transitions, 306 flow. Second operand 6 states and 1345 transitions. [2023-08-28 17:45:38,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 128 transitions, 621 flow [2023-08-28 17:45:38,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 128 transitions, 621 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 17:45:38,847 INFO L231 Difference]: Finished difference. Result has 92 places, 113 transitions, 525 flow [2023-08-28 17:45:38,847 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, 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} [2023-08-28 17:45:38,848 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -8 predicate places. [2023-08-28 17:45:38,850 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 113 transitions, 525 flow [2023-08-28 17:45:38,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 216.5) internal successors, (1299), 6 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:38,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:45:38,852 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] [2023-08-28 17:45:38,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-28 17:45:38,852 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-28 17:45:38,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:45:38,852 INFO L85 PathProgramCache]: Analyzing trace with hash 252056535, now seen corresponding path program 1 times [2023-08-28 17:45:38,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:45:38,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975640288] [2023-08-28 17:45:38,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:45:38,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:45:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:45:39,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:45:39,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:45:39,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975640288] [2023-08-28 17:45:39,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975640288] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:45:39,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:45:39,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-28 17:45:39,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299317791] [2023-08-28 17:45:39,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:45:39,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 17:45:39,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:45:39,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 17:45:39,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-28 17:45:39,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 359 [2023-08-28 17:45:39,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 113 transitions, 525 flow. Second operand has 9 states, 9 states have (on average 213.77777777777777) internal successors, (1924), 9 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:39,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:45:39,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 359 [2023-08-28 17:45:39,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:45:40,344 INFO L130 PetriNetUnfolder]: 2064/3463 cut-off events. [2023-08-28 17:45:40,345 INFO L131 PetriNetUnfolder]: For 2563/2865 co-relation queries the response was YES. [2023-08-28 17:45:40,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11025 conditions, 3463 events. 2064/3463 cut-off events. For 2563/2865 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 17275 event pairs, 232 based on Foata normal form. 70/3193 useless extension candidates. Maximal degree in co-relation 11015. Up to 1281 conditions per place. [2023-08-28 17:45:40,365 INFO L137 encePairwiseOnDemand]: 353/359 looper letters, 165 selfloop transitions, 8 changer transitions 16/224 dead transitions. [2023-08-28 17:45:40,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 224 transitions, 1253 flow [2023-08-28 17:45:40,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-28 17:45:40,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-28 17:45:40,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1633 transitions. [2023-08-28 17:45:40,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6498209311579786 [2023-08-28 17:45:40,368 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1633 transitions. [2023-08-28 17:45:40,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1633 transitions. [2023-08-28 17:45:40,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:45:40,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1633 transitions. [2023-08-28 17:45:40,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 233.28571428571428) internal successors, (1633), 7 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:40,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 359.0) internal successors, (2872), 8 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:40,376 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 359.0) internal successors, (2872), 8 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:40,376 INFO L175 Difference]: Start difference. First operand has 92 places, 113 transitions, 525 flow. Second operand 7 states and 1633 transitions. [2023-08-28 17:45:40,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 224 transitions, 1253 flow [2023-08-28 17:45:40,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 224 transitions, 1208 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-28 17:45:40,392 INFO L231 Difference]: Finished difference. Result has 92 places, 108 transitions, 490 flow [2023-08-28 17:45:40,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=490, PETRI_PLACES=92, PETRI_TRANSITIONS=108} [2023-08-28 17:45:40,394 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -8 predicate places. [2023-08-28 17:45:40,394 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 108 transitions, 490 flow [2023-08-28 17:45:40,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 213.77777777777777) internal successors, (1924), 9 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:40,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:45:40,395 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] [2023-08-28 17:45:40,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-28 17:45:40,395 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-28 17:45:40,395 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:45:40,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1338890489, now seen corresponding path program 1 times [2023-08-28 17:45:40,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:45:40,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656309925] [2023-08-28 17:45:40,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:45:40,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:45:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:45:40,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:45:40,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:45:40,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656309925] [2023-08-28 17:45:40,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656309925] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:45:40,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:45:40,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-28 17:45:40,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292008757] [2023-08-28 17:45:40,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:45:40,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 17:45:40,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:45:40,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 17:45:40,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-28 17:45:40,987 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 359 [2023-08-28 17:45:40,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 108 transitions, 490 flow. Second operand has 6 states, 6 states have (on average 218.5) internal successors, (1311), 6 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:40,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:45:40,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 359 [2023-08-28 17:45:40,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:45:41,681 INFO L130 PetriNetUnfolder]: 6109/9563 cut-off events. [2023-08-28 17:45:41,681 INFO L131 PetriNetUnfolder]: For 19867/20489 co-relation queries the response was YES. [2023-08-28 17:45:41,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31516 conditions, 9563 events. 6109/9563 cut-off events. For 19867/20489 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 53897 event pairs, 824 based on Foata normal form. 2/8659 useless extension candidates. Maximal degree in co-relation 31507. Up to 6519 conditions per place. [2023-08-28 17:45:41,738 INFO L137 encePairwiseOnDemand]: 349/359 looper letters, 79 selfloop transitions, 165 changer transitions 0/282 dead transitions. [2023-08-28 17:45:41,738 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 282 transitions, 2196 flow [2023-08-28 17:45:41,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-28 17:45:41,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-28 17:45:41,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1355 transitions. [2023-08-28 17:45:41,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6290622098421541 [2023-08-28 17:45:41,741 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1355 transitions. [2023-08-28 17:45:41,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1355 transitions. [2023-08-28 17:45:41,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:45:41,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1355 transitions. [2023-08-28 17:45:41,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 225.83333333333334) internal successors, (1355), 6 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:41,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:41,746 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:41,746 INFO L175 Difference]: Start difference. First operand has 92 places, 108 transitions, 490 flow. Second operand 6 states and 1355 transitions. [2023-08-28 17:45:41,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 282 transitions, 2196 flow [2023-08-28 17:45:41,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 282 transitions, 2182 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-28 17:45:41,765 INFO L231 Difference]: Finished difference. Result has 94 places, 272 transitions, 2418 flow [2023-08-28 17:45:41,765 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2418, PETRI_PLACES=94, PETRI_TRANSITIONS=272} [2023-08-28 17:45:41,767 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -6 predicate places. [2023-08-28 17:45:41,767 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 272 transitions, 2418 flow [2023-08-28 17:45:41,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.5) internal successors, (1311), 6 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:41,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:45:41,768 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] [2023-08-28 17:45:41,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-28 17:45:41,768 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-28 17:45:41,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:45:41,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1446876474, now seen corresponding path program 1 times [2023-08-28 17:45:41,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:45:41,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099079811] [2023-08-28 17:45:41,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:45:41,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:45:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:45:42,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:45:42,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:45:42,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099079811] [2023-08-28 17:45:42,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099079811] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:45:42,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:45:42,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 17:45:42,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147502639] [2023-08-28 17:45:42,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:45:42,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 17:45:42,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:45:42,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 17:45:42,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-28 17:45:42,572 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 359 [2023-08-28 17:45:42,573 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 272 transitions, 2418 flow. Second operand has 9 states, 9 states have (on average 215.44444444444446) internal successors, (1939), 9 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:42,574 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:45:42,574 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 359 [2023-08-28 17:45:42,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:45:43,367 INFO L130 PetriNetUnfolder]: 5718/9419 cut-off events. [2023-08-28 17:45:43,368 INFO L131 PetriNetUnfolder]: For 34179/35213 co-relation queries the response was YES. [2023-08-28 17:45:43,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38127 conditions, 9419 events. 5718/9419 cut-off events. For 34179/35213 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 56617 event pairs, 434 based on Foata normal form. 573/9312 useless extension candidates. Maximal degree in co-relation 38114. Up to 5088 conditions per place. [2023-08-28 17:45:43,433 INFO L137 encePairwiseOnDemand]: 352/359 looper letters, 311 selfloop transitions, 9 changer transitions 0/358 dead transitions. [2023-08-28 17:45:43,433 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 358 transitions, 3820 flow [2023-08-28 17:45:43,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-28 17:45:43,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-28 17:45:43,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1761 transitions. [2023-08-28 17:45:43,437 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6131615598885793 [2023-08-28 17:45:43,437 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1761 transitions. [2023-08-28 17:45:43,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1761 transitions. [2023-08-28 17:45:43,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:45:43,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1761 transitions. [2023-08-28 17:45:43,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 220.125) internal successors, (1761), 8 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:43,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 359.0) internal successors, (3231), 9 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:43,444 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 359.0) internal successors, (3231), 9 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:43,444 INFO L175 Difference]: Start difference. First operand has 94 places, 272 transitions, 2418 flow. Second operand 8 states and 1761 transitions. [2023-08-28 17:45:43,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 358 transitions, 3820 flow [2023-08-28 17:45:43,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 358 transitions, 3778 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 17:45:43,479 INFO L231 Difference]: Finished difference. Result has 99 places, 271 transitions, 2390 flow [2023-08-28 17:45:43,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=2372, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2390, PETRI_PLACES=99, PETRI_TRANSITIONS=271} [2023-08-28 17:45:43,479 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -1 predicate places. [2023-08-28 17:45:43,480 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 271 transitions, 2390 flow [2023-08-28 17:45:43,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 215.44444444444446) internal successors, (1939), 9 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:43,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:45:43,481 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] [2023-08-28 17:45:43,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-28 17:45:43,481 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-28 17:45:43,481 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:45:43,481 INFO L85 PathProgramCache]: Analyzing trace with hash -939499789, now seen corresponding path program 1 times [2023-08-28 17:45:43,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:45:43,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533446957] [2023-08-28 17:45:43,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:45:43,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:45:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:45:43,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:45:43,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:45:43,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533446957] [2023-08-28 17:45:43,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533446957] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:45:43,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:45:43,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-28 17:45:43,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842570653] [2023-08-28 17:45:43,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:45:43,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 17:45:43,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:45:43,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 17:45:43,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-28 17:45:44,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 359 [2023-08-28 17:45:44,074 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 271 transitions, 2390 flow. Second operand has 6 states, 6 states have (on average 218.83333333333334) internal successors, (1313), 6 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:44,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:45:44,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 359 [2023-08-28 17:45:44,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:45:45,011 INFO L130 PetriNetUnfolder]: 7810/12017 cut-off events. [2023-08-28 17:45:45,011 INFO L131 PetriNetUnfolder]: For 55888/56855 co-relation queries the response was YES. [2023-08-28 17:45:45,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49051 conditions, 12017 events. 7810/12017 cut-off events. For 55888/56855 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 67445 event pairs, 1064 based on Foata normal form. 2/11122 useless extension candidates. Maximal degree in co-relation 49038. Up to 8014 conditions per place. [2023-08-28 17:45:45,075 INFO L137 encePairwiseOnDemand]: 350/359 looper letters, 237 selfloop transitions, 125 changer transitions 0/403 dead transitions. [2023-08-28 17:45:45,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 403 transitions, 4330 flow [2023-08-28 17:45:45,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-28 17:45:45,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-28 17:45:45,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1349 transitions. [2023-08-28 17:45:45,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6262766945218199 [2023-08-28 17:45:45,079 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1349 transitions. [2023-08-28 17:45:45,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1349 transitions. [2023-08-28 17:45:45,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:45:45,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1349 transitions. [2023-08-28 17:45:45,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 224.83333333333334) internal successors, (1349), 6 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:45,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:45,084 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:45,084 INFO L175 Difference]: Start difference. First operand has 99 places, 271 transitions, 2390 flow. Second operand 6 states and 1349 transitions. [2023-08-28 17:45:45,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 403 transitions, 4330 flow [2023-08-28 17:45:45,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 403 transitions, 4314 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-28 17:45:45,114 INFO L231 Difference]: Finished difference. Result has 103 places, 395 transitions, 4140 flow [2023-08-28 17:45:45,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=2374, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4140, PETRI_PLACES=103, PETRI_TRANSITIONS=395} [2023-08-28 17:45:45,115 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, 3 predicate places. [2023-08-28 17:45:45,115 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 395 transitions, 4140 flow [2023-08-28 17:45:45,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.83333333333334) internal successors, (1313), 6 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:45,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:45:45,115 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] [2023-08-28 17:45:45,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-28 17:45:45,116 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-28 17:45:45,116 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:45:45,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1127504601, now seen corresponding path program 1 times [2023-08-28 17:45:45,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:45:45,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678857663] [2023-08-28 17:45:45,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:45:45,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:45:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:45:45,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:45:45,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:45:45,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678857663] [2023-08-28 17:45:45,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678857663] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:45:45,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:45:45,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 17:45:45,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275826310] [2023-08-28 17:45:45,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:45:45,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 17:45:45,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:45:45,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 17:45:45,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-28 17:45:45,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 359 [2023-08-28 17:45:45,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 395 transitions, 4140 flow. Second operand has 9 states, 9 states have (on average 215.66666666666666) internal successors, (1941), 9 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:45,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:45:45,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 359 [2023-08-28 17:45:45,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:45:47,006 INFO L130 PetriNetUnfolder]: 7674/12025 cut-off events. [2023-08-28 17:45:47,007 INFO L131 PetriNetUnfolder]: For 72007/72938 co-relation queries the response was YES. [2023-08-28 17:45:47,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55572 conditions, 12025 events. 7674/12025 cut-off events. For 72007/72938 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 69178 event pairs, 679 based on Foata normal form. 75/11323 useless extension candidates. Maximal degree in co-relation 55555. Up to 6891 conditions per place. [2023-08-28 17:45:47,091 INFO L137 encePairwiseOnDemand]: 352/359 looper letters, 411 selfloop transitions, 9 changer transitions 0/461 dead transitions. [2023-08-28 17:45:47,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 461 transitions, 5674 flow [2023-08-28 17:45:47,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-28 17:45:47,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-28 17:45:47,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1757 transitions. [2023-08-28 17:45:47,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6117688022284122 [2023-08-28 17:45:47,095 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1757 transitions. [2023-08-28 17:45:47,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1757 transitions. [2023-08-28 17:45:47,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:45:47,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1757 transitions. [2023-08-28 17:45:47,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 219.625) internal successors, (1757), 8 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:47,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 359.0) internal successors, (3231), 9 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:47,102 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 359.0) internal successors, (3231), 9 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:47,103 INFO L175 Difference]: Start difference. First operand has 103 places, 395 transitions, 4140 flow. Second operand 8 states and 1757 transitions. [2023-08-28 17:45:47,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 461 transitions, 5674 flow [2023-08-28 17:45:47,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 461 transitions, 5402 flow, removed 120 selfloop flow, removed 1 redundant places. [2023-08-28 17:45:47,165 INFO L231 Difference]: Finished difference. Result has 108 places, 394 transitions, 3882 flow [2023-08-28 17:45:47,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=3864, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3882, PETRI_PLACES=108, PETRI_TRANSITIONS=394} [2023-08-28 17:45:47,167 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places. [2023-08-28 17:45:47,167 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 394 transitions, 3882 flow [2023-08-28 17:45:47,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 215.66666666666666) internal successors, (1941), 9 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:47,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:45:47,178 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] [2023-08-28 17:45:47,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-28 17:45:47,178 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-28 17:45:47,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:45:47,185 INFO L85 PathProgramCache]: Analyzing trace with hash -774535544, now seen corresponding path program 1 times [2023-08-28 17:45:47,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:45:47,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502591940] [2023-08-28 17:45:47,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:45:47,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:45:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:45:47,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:45:47,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:45:47,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502591940] [2023-08-28 17:45:47,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502591940] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:45:47,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:45:47,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-28 17:45:47,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627197515] [2023-08-28 17:45:47,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:45:47,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 17:45:47,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:45:47,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 17:45:47,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-28 17:45:47,717 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 359 [2023-08-28 17:45:47,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 394 transitions, 3882 flow. Second operand has 6 states, 6 states have (on average 219.16666666666666) internal successors, (1315), 6 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:47,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:45:47,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 359 [2023-08-28 17:45:47,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:45:48,771 INFO L130 PetriNetUnfolder]: 8398/12894 cut-off events. [2023-08-28 17:45:48,771 INFO L131 PetriNetUnfolder]: For 80318/81391 co-relation queries the response was YES. [2023-08-28 17:45:48,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57853 conditions, 12894 events. 8398/12894 cut-off events. For 80318/81391 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 72171 event pairs, 1060 based on Foata normal form. 0/12085 useless extension candidates. Maximal degree in co-relation 57836. Up to 8586 conditions per place. [2023-08-28 17:45:48,856 INFO L137 encePairwiseOnDemand]: 351/359 looper letters, 355 selfloop transitions, 125 changer transitions 0/524 dead transitions. [2023-08-28 17:45:48,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 524 transitions, 6192 flow [2023-08-28 17:45:48,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-28 17:45:48,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-28 17:45:48,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1343 transitions. [2023-08-28 17:45:48,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6234911792014856 [2023-08-28 17:45:48,859 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1343 transitions. [2023-08-28 17:45:48,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1343 transitions. [2023-08-28 17:45:48,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:45:48,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1343 transitions. [2023-08-28 17:45:48,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 223.83333333333334) internal successors, (1343), 6 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:48,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:48,864 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:48,864 INFO L175 Difference]: Start difference. First operand has 108 places, 394 transitions, 3882 flow. Second operand 6 states and 1343 transitions. [2023-08-28 17:45:48,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 524 transitions, 6192 flow [2023-08-28 17:45:48,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 524 transitions, 6176 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-28 17:45:48,928 INFO L231 Difference]: Finished difference. Result has 112 places, 518 transitions, 5772 flow [2023-08-28 17:45:48,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=3866, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5772, PETRI_PLACES=112, PETRI_TRANSITIONS=518} [2023-08-28 17:45:48,929 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, 12 predicate places. [2023-08-28 17:45:48,929 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 518 transitions, 5772 flow [2023-08-28 17:45:48,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.16666666666666) internal successors, (1315), 6 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:48,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:45:48,930 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-08-28 17:45:48,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-28 17:45:48,930 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-28 17:45:48,930 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:45:48,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1545644501, now seen corresponding path program 1 times [2023-08-28 17:45:48,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:45:48,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852507160] [2023-08-28 17:45:48,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:45:48,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:45:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:45:49,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:45:49,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:45:49,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852507160] [2023-08-28 17:45:49,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852507160] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:45:49,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:45:49,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 17:45:49,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968761027] [2023-08-28 17:45:49,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:45:49,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 17:45:49,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:45:49,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 17:45:49,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-28 17:45:49,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 359 [2023-08-28 17:45:49,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 518 transitions, 5772 flow. Second operand has 9 states, 9 states have (on average 215.88888888888889) internal successors, (1943), 9 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:49,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:45:49,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 359 [2023-08-28 17:45:49,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:45:50,907 INFO L130 PetriNetUnfolder]: 8363/12856 cut-off events. [2023-08-28 17:45:50,908 INFO L131 PetriNetUnfolder]: For 92645/93732 co-relation queries the response was YES. [2023-08-28 17:45:50,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61691 conditions, 12856 events. 8363/12856 cut-off events. For 92645/93732 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 72048 event pairs, 831 based on Foata normal form. 31/12106 useless extension candidates. Maximal degree in co-relation 61670. Up to 7571 conditions per place. [2023-08-28 17:45:50,986 INFO L137 encePairwiseOnDemand]: 352/359 looper letters, 511 selfloop transitions, 9 changer transitions 0/564 dead transitions. [2023-08-28 17:45:50,987 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 564 transitions, 7358 flow [2023-08-28 17:45:50,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-28 17:45:50,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-28 17:45:50,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1753 transitions. [2023-08-28 17:45:50,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6103760445682451 [2023-08-28 17:45:50,990 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1753 transitions. [2023-08-28 17:45:50,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1753 transitions. [2023-08-28 17:45:50,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:45:50,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1753 transitions. [2023-08-28 17:45:50,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 219.125) internal successors, (1753), 8 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:50,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 359.0) internal successors, (3231), 9 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:50,996 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 359.0) internal successors, (3231), 9 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:50,996 INFO L175 Difference]: Start difference. First operand has 112 places, 518 transitions, 5772 flow. Second operand 8 states and 1753 transitions. [2023-08-28 17:45:50,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 564 transitions, 7358 flow [2023-08-28 17:45:51,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 564 transitions, 7246 flow, removed 40 selfloop flow, removed 1 redundant places. [2023-08-28 17:45:51,098 INFO L231 Difference]: Finished difference. Result has 117 places, 517 transitions, 5674 flow [2023-08-28 17:45:51,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=5656, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5674, PETRI_PLACES=117, PETRI_TRANSITIONS=517} [2023-08-28 17:45:51,099 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, 17 predicate places. [2023-08-28 17:45:51,099 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 517 transitions, 5674 flow [2023-08-28 17:45:51,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 215.88888888888889) internal successors, (1943), 9 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:51,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:45:51,100 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] [2023-08-28 17:45:51,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-28 17:45:51,100 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-28 17:45:51,100 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:45:51,100 INFO L85 PathProgramCache]: Analyzing trace with hash -844969501, now seen corresponding path program 1 times [2023-08-28 17:45:51,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:45:51,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711280388] [2023-08-28 17:45:51,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:45:51,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:45:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:45:51,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:45:51,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:45:51,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711280388] [2023-08-28 17:45:51,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711280388] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:45:51,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:45:51,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-28 17:45:51,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174535488] [2023-08-28 17:45:51,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:45:51,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 17:45:51,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:45:51,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 17:45:51,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-28 17:45:51,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 359 [2023-08-28 17:45:51,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 517 transitions, 5674 flow. Second operand has 6 states, 6 states have (on average 219.5) internal successors, (1317), 6 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:51,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:45:51,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 359 [2023-08-28 17:45:51,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:45:52,710 INFO L130 PetriNetUnfolder]: 8556/13056 cut-off events. [2023-08-28 17:45:52,711 INFO L131 PetriNetUnfolder]: For 100157/101291 co-relation queries the response was YES. [2023-08-28 17:45:52,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62656 conditions, 13056 events. 8556/13056 cut-off events. For 100157/101291 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 72507 event pairs, 1055 based on Foata normal form. 0/12305 useless extension candidates. Maximal degree in co-relation 62635. Up to 8797 conditions per place. [2023-08-28 17:45:52,770 INFO L137 encePairwiseOnDemand]: 352/359 looper letters, 352 selfloop transitions, 85 changer transitions 121/605 dead transitions. [2023-08-28 17:45:52,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 605 transitions, 7878 flow [2023-08-28 17:45:52,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-28 17:45:52,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-28 17:45:52,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1337 transitions. [2023-08-28 17:45:52,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6207056638811513 [2023-08-28 17:45:52,773 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1337 transitions. [2023-08-28 17:45:52,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1337 transitions. [2023-08-28 17:45:52,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:45:52,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1337 transitions. [2023-08-28 17:45:52,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 222.83333333333334) internal successors, (1337), 6 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:52,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:52,777 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:52,777 INFO L175 Difference]: Start difference. First operand has 117 places, 517 transitions, 5674 flow. Second operand 6 states and 1337 transitions. [2023-08-28 17:45:52,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 605 transitions, 7878 flow [2023-08-28 17:45:52,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 605 transitions, 7862 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-28 17:45:52,881 INFO L231 Difference]: Finished difference. Result has 121 places, 480 transitions, 5546 flow [2023-08-28 17:45:52,881 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=5658, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5546, PETRI_PLACES=121, PETRI_TRANSITIONS=480} [2023-08-28 17:45:52,881 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, 21 predicate places. [2023-08-28 17:45:52,881 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 480 transitions, 5546 flow [2023-08-28 17:45:52,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.5) internal successors, (1317), 6 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:52,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:45:52,882 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] [2023-08-28 17:45:52,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-28 17:45:52,882 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-28 17:45:52,882 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:45:52,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1364060710, now seen corresponding path program 1 times [2023-08-28 17:45:52,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:45:52,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635238824] [2023-08-28 17:45:52,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:45:52,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:45:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:45:53,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:45:53,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:45:53,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635238824] [2023-08-28 17:45:53,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635238824] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:45:53,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:45:53,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 17:45:53,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295233576] [2023-08-28 17:45:53,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:45:53,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 17:45:53,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:45:53,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 17:45:53,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-28 17:45:53,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 359 [2023-08-28 17:45:53,714 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 480 transitions, 5546 flow. Second operand has 9 states, 9 states have (on average 205.11111111111111) internal successors, (1846), 9 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:53,714 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:45:53,714 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 359 [2023-08-28 17:45:53,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:45:54,964 INFO L130 PetriNetUnfolder]: 7269/11641 cut-off events. [2023-08-28 17:45:54,965 INFO L131 PetriNetUnfolder]: For 90103/90849 co-relation queries the response was YES. [2023-08-28 17:45:55,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56399 conditions, 11641 events. 7269/11641 cut-off events. For 90103/90849 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 69250 event pairs, 788 based on Foata normal form. 11/11028 useless extension candidates. Maximal degree in co-relation 56374. Up to 7398 conditions per place. [2023-08-28 17:45:55,023 INFO L137 encePairwiseOnDemand]: 352/359 looper letters, 0 selfloop transitions, 0 changer transitions 486/486 dead transitions. [2023-08-28 17:45:55,023 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 486 transitions, 6434 flow [2023-08-28 17:45:55,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-28 17:45:55,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-28 17:45:55,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1661 transitions. [2023-08-28 17:45:55,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5783426183844012 [2023-08-28 17:45:55,026 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1661 transitions. [2023-08-28 17:45:55,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1661 transitions. [2023-08-28 17:45:55,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:45:55,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1661 transitions. [2023-08-28 17:45:55,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 207.625) internal successors, (1661), 8 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:55,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 359.0) internal successors, (3231), 9 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:55,031 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 359.0) internal successors, (3231), 9 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:55,031 INFO L175 Difference]: Start difference. First operand has 121 places, 480 transitions, 5546 flow. Second operand 8 states and 1661 transitions. [2023-08-28 17:45:55,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 486 transitions, 6434 flow [2023-08-28 17:45:55,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 486 transitions, 6372 flow, removed 20 selfloop flow, removed 1 redundant places. [2023-08-28 17:45:55,123 INFO L231 Difference]: Finished difference. Result has 126 places, 0 transitions, 0 flow [2023-08-28 17:45:55,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=5480, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=479, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=126, PETRI_TRANSITIONS=0} [2023-08-28 17:45:55,124 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, 26 predicate places. [2023-08-28 17:45:55,124 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 0 transitions, 0 flow [2023-08-28 17:45:55,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 205.11111111111111) internal successors, (1846), 9 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:45:55,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2023-08-28 17:45:55,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2023-08-28 17:45:55,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2023-08-28 17:45:55,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2023-08-28 17:45:55,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2023-08-28 17:45:55,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 38 remaining) [2023-08-28 17:45:55,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 38 remaining) [2023-08-28 17:45:55,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 38 remaining) [2023-08-28 17:45:55,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 38 remaining) [2023-08-28 17:45:55,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 38 remaining) [2023-08-28 17:45:55,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2023-08-28 17:45:55,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2023-08-28 17:45:55,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2023-08-28 17:45:55,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2023-08-28 17:45:55,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2023-08-28 17:45:55,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2023-08-28 17:45:55,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2023-08-28 17:45:55,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2023-08-28 17:45:55,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 38 remaining) [2023-08-28 17:45:55,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2023-08-28 17:45:55,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2023-08-28 17:45:55,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2023-08-28 17:45:55,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2023-08-28 17:45:55,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2023-08-28 17:45:55,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2023-08-28 17:45:55,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 38 remaining) [2023-08-28 17:45:55,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 38 remaining) [2023-08-28 17:45:55,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 38 remaining) [2023-08-28 17:45:55,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 38 remaining) [2023-08-28 17:45:55,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2023-08-28 17:45:55,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2023-08-28 17:45:55,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2023-08-28 17:45:55,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2023-08-28 17:45:55,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2023-08-28 17:45:55,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2023-08-28 17:45:55,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2023-08-28 17:45:55,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2023-08-28 17:45:55,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2023-08-28 17:45:55,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-28 17:45:55,133 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:45:55,136 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-28 17:45:55,136 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-28 17:45:55,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 05:45:55 BasicIcfg [2023-08-28 17:45:55,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-28 17:45:55,139 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-28 17:45:55,139 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-28 17:45:55,139 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-28 17:45:55,139 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:45:33" (3/4) ... [2023-08-28 17:45:55,141 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-28 17:45:55,144 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2023-08-28 17:45:55,144 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-28 17:45:55,144 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-28 17:45:55,144 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-28 17:45:55,146 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-08-28 17:45:55,146 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-28 17:45:55,146 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-28 17:45:55,146 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-28 17:45:55,163 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-28 17:45:55,163 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-28 17:45:55,163 INFO L158 Benchmark]: Toolchain (without parser) took 22305.83ms. Allocated memory was 65.0MB in the beginning and 2.6GB in the end (delta: 2.5GB). Free memory was 31.1MB in the beginning and 1.6GB in the end (delta: -1.6GB). Peak memory consumption was 987.9MB. Max. memory is 16.1GB. [2023-08-28 17:45:55,164 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 48.2MB. Free memory was 26.3MB in the beginning and 26.3MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 17:45:55,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 496.54ms. Allocated memory is still 65.0MB. Free memory was 30.9MB in the beginning and 32.1MB in the end (delta: -1.2MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2023-08-28 17:45:55,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.40ms. Allocated memory is still 65.0MB. Free memory was 32.1MB in the beginning and 29.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-28 17:45:55,164 INFO L158 Benchmark]: Boogie Preprocessor took 54.77ms. Allocated memory is still 65.0MB. Free memory was 29.7MB in the beginning and 27.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:45:55,164 INFO L158 Benchmark]: RCFGBuilder took 492.21ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 27.3MB in the beginning and 35.1MB in the end (delta: -7.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2023-08-28 17:45:55,165 INFO L158 Benchmark]: TraceAbstraction took 21180.28ms. Allocated memory was 79.7MB in the beginning and 2.6GB in the end (delta: 2.5GB). Free memory was 53.8MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 992.9MB. Max. memory is 16.1GB. [2023-08-28 17:45:55,165 INFO L158 Benchmark]: Witness Printer took 24.46ms. Allocated memory is still 2.6GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:45:55,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 48.2MB. Free memory was 26.3MB in the beginning and 26.3MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 496.54ms. Allocated memory is still 65.0MB. Free memory was 30.9MB in the beginning and 32.1MB in the end (delta: -1.2MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.40ms. Allocated memory is still 65.0MB. Free memory was 32.1MB in the beginning and 29.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.77ms. Allocated memory is still 65.0MB. Free memory was 29.7MB in the beginning and 27.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 492.21ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 27.3MB in the beginning and 35.1MB in the end (delta: -7.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * TraceAbstraction took 21180.28ms. Allocated memory was 79.7MB in the beginning and 2.6GB in the end (delta: 2.5GB). Free memory was 53.8MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 992.9MB. Max. memory is 16.1GB. * Witness Printer took 24.46ms. Allocated memory is still 2.6GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 179 PlacesBefore, 100 PlacesAfterwards, 165 TransitionsBefore, 86 TransitionsAfterwards, 4608 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 72 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 91 TotalNumberOfCompositions, 20506 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7285, independent: 6746, independent conditional: 0, independent unconditional: 6746, dependent: 539, dependent conditional: 0, dependent unconditional: 539, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1913, independent: 1767, independent conditional: 0, independent unconditional: 1767, dependent: 146, dependent conditional: 0, dependent unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7285, independent: 4979, independent conditional: 0, independent unconditional: 4979, dependent: 393, dependent conditional: 0, dependent unconditional: 393, unknown: 1913, unknown conditional: 0, unknown unconditional: 1913] , Statistics on independence cache: Total cache size (in pairs): 317, Positive cache size: 253, Positive conditional cache size: 0, Positive unconditional cache size: 253, Negative cache size: 64, Negative conditional cache size: 0, Negative unconditional cache size: 64, 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 311 locations, 38 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 21.0s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4046 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2638 mSDsluCounter, 974 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 896 mSDsCounter, 1975 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9502 IncrementalHoareTripleChecker+Invalid, 11477 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1975 mSolverCounterUnsat, 78 mSDtfsCounter, 9502 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5772occurred in iteration=9, InterpolantAutomatonStates: 77, 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, 2.9s InterpolantComputationTime, 363 NumberOfCodeBlocks, 363 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 351 ConstructedInterpolants, 0 QuantifiedInterpolants, 1790 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-28 17:45:55,178 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