./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c --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/weaver/popl20-more-mts.wvr.c -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 9d38eb9d6ba70070fe3ced1aec90f1c3400cc1f89786e1bd625a19020cb0869f --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 [2023-08-29 03:43:37,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:43:37,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:43:37,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:43:37,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:43:37,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:43:37,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:43:37,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:43:37,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:43:37,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:43:37,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:43:37,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:43:37,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:43:37,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:43:37,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:43:37,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:43:37,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:43:37,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:43:37,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:43:37,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:43:37,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:43:37,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:43:37,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:43:37,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:43:37,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:43:37,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:43:37,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:43:37,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:43:37,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:43:37,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:43:37,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:43:37,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:43:37,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:43:37,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:43:37,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:43:37,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:43:37,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:43:37,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:43:37,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:43:37,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:43:37,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:43:37,562 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:43:37,603 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:43:37,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:43:37,605 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:43:37,605 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:43:37,606 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:43:37,606 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:43:37,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:43:37,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:43:37,607 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:43:37,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:43:37,608 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:43:37,608 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:43:37,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:43:37,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:43:37,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:43:37,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:43:37,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:43:37,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:43:37,610 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:43:37,610 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:43:37,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:43:37,610 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:43:37,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:43:37,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:43:37,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:43:37,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:43:37,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:43:37,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:43:37,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:43:37,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:43:37,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:43:37,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:43:37,612 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:43:37,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:43:37,613 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:43:37,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:43:37,613 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:43:37,613 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d38eb9d6ba70070fe3ced1aec90f1c3400cc1f89786e1bd625a19020cb0869f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:43:37,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:43:37,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:43:37,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:43:37,950 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:43:37,950 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:43:37,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c [2023-08-29 03:43:39,201 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:43:39,423 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:43:39,424 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c [2023-08-29 03:43:39,432 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6fd86849/de9ee917fb264648ab7454f562755934/FLAG684762c26 [2023-08-29 03:43:39,456 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6fd86849/de9ee917fb264648ab7454f562755934 [2023-08-29 03:43:39,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:43:39,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:43:39,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:43:39,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:43:39,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:43:39,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:43:39" (1/1) ... [2023-08-29 03:43:39,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3009921c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:39, skipping insertion in model container [2023-08-29 03:43:39,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:43:39" (1/1) ... [2023-08-29 03:43:39,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:43:39,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:43:39,708 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c[2533,2546] [2023-08-29 03:43:39,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:43:39,736 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:43:39,802 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c[2533,2546] [2023-08-29 03:43:39,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:43:39,824 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 03:43:39,825 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 03:43:39,831 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:43:39,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:39 WrapperNode [2023-08-29 03:43:39,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:43:39,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:43:39,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:43:39,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:43:39,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:39" (1/1) ... [2023-08-29 03:43:39,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:39" (1/1) ... [2023-08-29 03:43:39,889 INFO L138 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 13, calls inlined = 19, statements flattened = 379 [2023-08-29 03:43:39,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:43:39,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:43:39,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:43:39,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:43:39,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:39" (1/1) ... [2023-08-29 03:43:39,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:39" (1/1) ... [2023-08-29 03:43:39,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:39" (1/1) ... [2023-08-29 03:43:39,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:39" (1/1) ... [2023-08-29 03:43:39,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:39" (1/1) ... [2023-08-29 03:43:39,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:39" (1/1) ... [2023-08-29 03:43:39,950 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:39" (1/1) ... [2023-08-29 03:43:39,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:39" (1/1) ... [2023-08-29 03:43:39,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:43:39,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:43:39,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:43:39,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:43:39,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:39" (1/1) ... [2023-08-29 03:43:39,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:43:39,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:43:39,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 03:43:39,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 03:43:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:43:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:43:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:43:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:43:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 03:43:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 03:43:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 03:43:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 03:43:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 03:43:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 03:43:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:43:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 03:43:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 03:43:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 03:43:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:43:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:43:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:43:40,026 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 03:43:40,120 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:43:40,122 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:43:40,802 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:43:41,042 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:43:41,043 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-29 03:43:41,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:43:41 BoogieIcfgContainer [2023-08-29 03:43:41,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:43:41,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:43:41,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:43:41,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:43:41,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:43:39" (1/3) ... [2023-08-29 03:43:41,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e40de51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:43:41, skipping insertion in model container [2023-08-29 03:43:41,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:39" (2/3) ... [2023-08-29 03:43:41,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e40de51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:43:41, skipping insertion in model container [2023-08-29 03:43:41,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:43:41" (3/3) ... [2023-08-29 03:43:41,055 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-mts.wvr.c [2023-08-29 03:43:41,064 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:43:41,073 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:43:41,074 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2023-08-29 03:43:41,074 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:43:41,194 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 03:43:41,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 369 transitions, 762 flow [2023-08-29 03:43:41,393 INFO L130 PetriNetUnfolder]: 20/366 cut-off events. [2023-08-29 03:43:41,394 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:43:41,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 366 events. 20/366 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 781 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 271. Up to 2 conditions per place. [2023-08-29 03:43:41,403 INFO L82 GeneralOperation]: Start removeDead. Operand has 359 places, 369 transitions, 762 flow [2023-08-29 03:43:41,411 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 337 places, 345 transitions, 708 flow [2023-08-29 03:43:41,414 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:43:41,425 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 337 places, 345 transitions, 708 flow [2023-08-29 03:43:41,429 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 337 places, 345 transitions, 708 flow [2023-08-29 03:43:41,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 337 places, 345 transitions, 708 flow [2023-08-29 03:43:41,496 INFO L130 PetriNetUnfolder]: 18/345 cut-off events. [2023-08-29 03:43:41,496 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:43:41,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 345 events. 18/345 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 767 event pairs, 0 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 271. Up to 2 conditions per place. [2023-08-29 03:43:41,533 INFO L119 LiptonReduction]: Number of co-enabled transitions 26082 [2023-08-29 03:43:51,823 INFO L134 LiptonReduction]: Checked pairs total: 134949 [2023-08-29 03:43:51,824 INFO L136 LiptonReduction]: Total number of compositions: 340 [2023-08-29 03:43:51,846 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:43:51,853 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;@76ed189d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:43:51,854 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2023-08-29 03:43:51,866 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 03:43:51,866 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:43:51,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:43:51,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 03:43:51,870 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 03:43:51,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:43:51,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1594, now seen corresponding path program 1 times [2023-08-29 03:43:51,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:43:51,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577860024] [2023-08-29 03:43:51,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:43:51,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:43:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:43:52,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:43:52,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:43:52,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577860024] [2023-08-29 03:43:52,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577860024] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:43:52,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:43:52,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 03:43:52,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862695311] [2023-08-29 03:43:52,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:43:52,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:43:52,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:43:52,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:43:52,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:43:52,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 709 [2023-08-29 03:43:52,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 127 transitions, 272 flow. Second operand has 2 states, 2 states have (on average 338.5) internal successors, (677), 2 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:52,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:43:52,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 709 [2023-08-29 03:43:52,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:43:52,600 INFO L130 PetriNetUnfolder]: 1597/4224 cut-off events. [2023-08-29 03:43:52,601 INFO L131 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2023-08-29 03:43:52,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6581 conditions, 4224 events. 1597/4224 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 37262 event pairs, 1046 based on Foata normal form. 507/3918 useless extension candidates. Maximal degree in co-relation 6026. Up to 2179 conditions per place. [2023-08-29 03:43:52,635 INFO L137 encePairwiseOnDemand]: 673/709 looper letters, 32 selfloop transitions, 0 changer transitions 1/91 dead transitions. [2023-08-29 03:43:52,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 91 transitions, 266 flow [2023-08-29 03:43:52,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:43:52,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:43:52,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 745 transitions. [2023-08-29 03:43:52,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5253878702397743 [2023-08-29 03:43:52,656 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 745 transitions. [2023-08-29 03:43:52,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 745 transitions. [2023-08-29 03:43:52,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:43:52,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 745 transitions. [2023-08-29 03:43:52,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 372.5) internal successors, (745), 2 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:52,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 709.0) internal successors, (2127), 3 states have internal predecessors, (2127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:52,676 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 709.0) internal successors, (2127), 3 states have internal predecessors, (2127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:52,678 INFO L175 Difference]: Start difference. First operand has 127 places, 127 transitions, 272 flow. Second operand 2 states and 745 transitions. [2023-08-29 03:43:52,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 91 transitions, 266 flow [2023-08-29 03:43:52,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 91 transitions, 254 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 03:43:52,687 INFO L231 Difference]: Finished difference. Result has 90 places, 90 transitions, 185 flow [2023-08-29 03:43:52,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=185, PETRI_PLACES=90, PETRI_TRANSITIONS=90} [2023-08-29 03:43:52,696 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -37 predicate places. [2023-08-29 03:43:52,698 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 90 transitions, 185 flow [2023-08-29 03:43:52,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 338.5) internal successors, (677), 2 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:52,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:43:52,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 03:43:52,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:43:52,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 03:43:52,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:43:52,702 INFO L85 PathProgramCache]: Analyzing trace with hash 106756084, now seen corresponding path program 1 times [2023-08-29 03:43:52,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:43:52,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854037501] [2023-08-29 03:43:52,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:43:52,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:43:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:43:52,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:43:52,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:43:52,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854037501] [2023-08-29 03:43:52,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854037501] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:43:52,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:43:52,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:43:52,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862735227] [2023-08-29 03:43:52,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:43:52,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:43:52,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:43:52,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:43:52,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:43:52,889 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 709 [2023-08-29 03:43:52,891 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 90 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:52,891 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:43:52,891 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 709 [2023-08-29 03:43:52,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:43:53,515 INFO L130 PetriNetUnfolder]: 2604/6072 cut-off events. [2023-08-29 03:43:53,516 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2023-08-29 03:43:53,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9732 conditions, 6072 events. 2604/6072 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 52052 event pairs, 1893 based on Foata normal form. 0/4885 useless extension candidates. Maximal degree in co-relation 9729. Up to 3575 conditions per place. [2023-08-29 03:43:53,558 INFO L137 encePairwiseOnDemand]: 706/709 looper letters, 34 selfloop transitions, 1 changer transitions 0/88 dead transitions. [2023-08-29 03:43:53,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 88 transitions, 251 flow [2023-08-29 03:43:53,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:43:53,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:43:53,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1012 transitions. [2023-08-29 03:43:53,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47578749412317817 [2023-08-29 03:43:53,562 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1012 transitions. [2023-08-29 03:43:53,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1012 transitions. [2023-08-29 03:43:53,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:43:53,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1012 transitions. [2023-08-29 03:43:53,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:53,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:53,571 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:53,571 INFO L175 Difference]: Start difference. First operand has 90 places, 90 transitions, 185 flow. Second operand 3 states and 1012 transitions. [2023-08-29 03:43:53,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 88 transitions, 251 flow [2023-08-29 03:43:53,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 88 transitions, 251 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:43:53,574 INFO L231 Difference]: Finished difference. Result has 89 places, 88 transitions, 183 flow [2023-08-29 03:43:53,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=183, PETRI_PLACES=89, PETRI_TRANSITIONS=88} [2023-08-29 03:43:53,575 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -38 predicate places. [2023-08-29 03:43:53,576 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 88 transitions, 183 flow [2023-08-29 03:43:53,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:53,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:43:53,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:43:53,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:43:53,577 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 03:43:53,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:43:53,580 INFO L85 PathProgramCache]: Analyzing trace with hash -486334750, now seen corresponding path program 1 times [2023-08-29 03:43:53,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:43:53,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270086218] [2023-08-29 03:43:53,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:43:53,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:43:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:43:53,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:43:53,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:43:53,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270086218] [2023-08-29 03:43:53,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270086218] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:43:53,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:43:53,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:43:53,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488758174] [2023-08-29 03:43:53,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:43:53,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:43:53,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:43:53,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:43:53,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:43:53,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 709 [2023-08-29 03:43:53,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 88 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 327.0) internal successors, (981), 3 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:53,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:43:53,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 709 [2023-08-29 03:43:53,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:43:54,280 INFO L130 PetriNetUnfolder]: 2582/5446 cut-off events. [2023-08-29 03:43:54,281 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-08-29 03:43:54,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9138 conditions, 5446 events. 2582/5446 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 42989 event pairs, 474 based on Foata normal form. 0/4735 useless extension candidates. Maximal degree in co-relation 9134. Up to 3323 conditions per place. [2023-08-29 03:43:54,335 INFO L137 encePairwiseOnDemand]: 702/709 looper letters, 51 selfloop transitions, 3 changer transitions 0/102 dead transitions. [2023-08-29 03:43:54,336 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 102 transitions, 323 flow [2023-08-29 03:43:54,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:43:54,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:43:54,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1033 transitions. [2023-08-29 03:43:54,339 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48566055477197934 [2023-08-29 03:43:54,339 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1033 transitions. [2023-08-29 03:43:54,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1033 transitions. [2023-08-29 03:43:54,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:43:54,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1033 transitions. [2023-08-29 03:43:54,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:54,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:54,350 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:54,350 INFO L175 Difference]: Start difference. First operand has 89 places, 88 transitions, 183 flow. Second operand 3 states and 1033 transitions. [2023-08-29 03:43:54,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 102 transitions, 323 flow [2023-08-29 03:43:54,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 102 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:43:54,355 INFO L231 Difference]: Finished difference. Result has 87 places, 87 transitions, 195 flow [2023-08-29 03:43:54,355 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=87, PETRI_TRANSITIONS=87} [2023-08-29 03:43:54,357 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -40 predicate places. [2023-08-29 03:43:54,357 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 87 transitions, 195 flow [2023-08-29 03:43:54,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.0) internal successors, (981), 3 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:54,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:43:54,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:43:54,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 03:43:54,359 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 03:43:54,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:43:54,359 INFO L85 PathProgramCache]: Analyzing trace with hash -77754687, now seen corresponding path program 1 times [2023-08-29 03:43:54,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:43:54,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339969691] [2023-08-29 03:43:54,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:43:54,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:43:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:43:54,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:43:54,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:43:54,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339969691] [2023-08-29 03:43:54,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339969691] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:43:54,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:43:54,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:43:54,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687120862] [2023-08-29 03:43:54,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:43:54,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:43:54,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:43:54,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:43:54,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:43:54,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 709 [2023-08-29 03:43:54,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 87 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:54,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:43:54,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 709 [2023-08-29 03:43:54,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:43:54,968 INFO L130 PetriNetUnfolder]: 2512/5615 cut-off events. [2023-08-29 03:43:54,968 INFO L131 PetriNetUnfolder]: For 422/578 co-relation queries the response was YES. [2023-08-29 03:43:54,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9774 conditions, 5615 events. 2512/5615 cut-off events. For 422/578 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 46419 event pairs, 1755 based on Foata normal form. 0/4859 useless extension candidates. Maximal degree in co-relation 9770. Up to 3486 conditions per place. [2023-08-29 03:43:55,004 INFO L137 encePairwiseOnDemand]: 706/709 looper letters, 36 selfloop transitions, 1 changer transitions 0/85 dead transitions. [2023-08-29 03:43:55,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 85 transitions, 265 flow [2023-08-29 03:43:55,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:43:55,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:43:55,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1011 transitions. [2023-08-29 03:43:55,007 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47531734837799716 [2023-08-29 03:43:55,007 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1011 transitions. [2023-08-29 03:43:55,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1011 transitions. [2023-08-29 03:43:55,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:43:55,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1011 transitions. [2023-08-29 03:43:55,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:55,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:55,016 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:55,016 INFO L175 Difference]: Start difference. First operand has 87 places, 87 transitions, 195 flow. Second operand 3 states and 1011 transitions. [2023-08-29 03:43:55,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 85 transitions, 265 flow [2023-08-29 03:43:55,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 85 transitions, 265 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:43:55,018 INFO L231 Difference]: Finished difference. Result has 87 places, 85 transitions, 193 flow [2023-08-29 03:43:55,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=87, PETRI_TRANSITIONS=85} [2023-08-29 03:43:55,019 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -40 predicate places. [2023-08-29 03:43:55,020 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 85 transitions, 193 flow [2023-08-29 03:43:55,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:55,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:43:55,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:43:55,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 03:43:55,021 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 03:43:55,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:43:55,022 INFO L85 PathProgramCache]: Analyzing trace with hash 378830133, now seen corresponding path program 1 times [2023-08-29 03:43:55,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:43:55,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630020748] [2023-08-29 03:43:55,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:43:55,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:43:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:43:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:43:55,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:43:55,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630020748] [2023-08-29 03:43:55,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630020748] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:43:55,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:43:55,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:43:55,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901703636] [2023-08-29 03:43:55,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:43:55,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:43:55,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:43:55,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:43:55,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:43:55,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 709 [2023-08-29 03:43:55,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 85 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 335.6666666666667) internal successors, (1007), 3 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:55,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:43:55,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 709 [2023-08-29 03:43:55,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:43:55,635 INFO L130 PetriNetUnfolder]: 1806/4386 cut-off events. [2023-08-29 03:43:55,636 INFO L131 PetriNetUnfolder]: For 364/431 co-relation queries the response was YES. [2023-08-29 03:43:55,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7409 conditions, 4386 events. 1806/4386 cut-off events. For 364/431 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 37247 event pairs, 1151 based on Foata normal form. 1/3673 useless extension candidates. Maximal degree in co-relation 7404. Up to 2487 conditions per place. [2023-08-29 03:43:55,665 INFO L137 encePairwiseOnDemand]: 706/709 looper letters, 34 selfloop transitions, 2 changer transitions 0/86 dead transitions. [2023-08-29 03:43:55,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 86 transitions, 267 flow [2023-08-29 03:43:55,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:43:55,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:43:55,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1033 transitions. [2023-08-29 03:43:55,709 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48566055477197934 [2023-08-29 03:43:55,710 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1033 transitions. [2023-08-29 03:43:55,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1033 transitions. [2023-08-29 03:43:55,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:43:55,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1033 transitions. [2023-08-29 03:43:55,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:55,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:55,719 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:55,719 INFO L175 Difference]: Start difference. First operand has 87 places, 85 transitions, 193 flow. Second operand 3 states and 1033 transitions. [2023-08-29 03:43:55,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 86 transitions, 267 flow [2023-08-29 03:43:55,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 86 transitions, 266 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:43:55,722 INFO L231 Difference]: Finished difference. Result has 89 places, 86 transitions, 204 flow [2023-08-29 03:43:55,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=89, PETRI_TRANSITIONS=86} [2023-08-29 03:43:55,723 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -38 predicate places. [2023-08-29 03:43:55,723 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 86 transitions, 204 flow [2023-08-29 03:43:55,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.6666666666667) internal successors, (1007), 3 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:55,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:43:55,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:43:55,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 03:43:55,724 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 03:43:55,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:43:55,725 INFO L85 PathProgramCache]: Analyzing trace with hash -140049489, now seen corresponding path program 1 times [2023-08-29 03:43:55,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:43:55,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956836204] [2023-08-29 03:43:55,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:43:55,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:43:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:43:56,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 03:43:56,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:43:56,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956836204] [2023-08-29 03:43:56,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956836204] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:43:56,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:43:56,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:43:56,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870847653] [2023-08-29 03:43:56,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:43:56,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:43:56,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:43:56,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:43:56,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:43:56,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 709 [2023-08-29 03:43:56,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 86 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 327.1666666666667) internal successors, (1963), 6 states have internal predecessors, (1963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:56,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:43:56,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 709 [2023-08-29 03:43:56,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:43:57,389 INFO L130 PetriNetUnfolder]: 4798/7446 cut-off events. [2023-08-29 03:43:57,389 INFO L131 PetriNetUnfolder]: For 889/923 co-relation queries the response was YES. [2023-08-29 03:43:57,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15003 conditions, 7446 events. 4798/7446 cut-off events. For 889/923 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 49404 event pairs, 542 based on Foata normal form. 3/6045 useless extension candidates. Maximal degree in co-relation 14997. Up to 2166 conditions per place. [2023-08-29 03:43:57,433 INFO L137 encePairwiseOnDemand]: 704/709 looper letters, 124 selfloop transitions, 4 changer transitions 0/173 dead transitions. [2023-08-29 03:43:57,433 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 173 transitions, 694 flow [2023-08-29 03:43:57,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:43:57,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:43:57,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2063 transitions. [2023-08-29 03:43:57,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48495533615420783 [2023-08-29 03:43:57,439 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2063 transitions. [2023-08-29 03:43:57,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2063 transitions. [2023-08-29 03:43:57,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:43:57,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2063 transitions. [2023-08-29 03:43:57,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 343.8333333333333) internal successors, (2063), 6 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:57,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:57,453 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:57,454 INFO L175 Difference]: Start difference. First operand has 89 places, 86 transitions, 204 flow. Second operand 6 states and 2063 transitions. [2023-08-29 03:43:57,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 173 transitions, 694 flow [2023-08-29 03:43:57,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 173 transitions, 690 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 03:43:57,458 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 206 flow [2023-08-29 03:43:57,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=206, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2023-08-29 03:43:57,459 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -35 predicate places. [2023-08-29 03:43:57,459 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 206 flow [2023-08-29 03:43:57,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 327.1666666666667) internal successors, (1963), 6 states have internal predecessors, (1963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:57,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:43:57,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:43:57,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 03:43:57,461 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 03:43:57,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:43:57,461 INFO L85 PathProgramCache]: Analyzing trace with hash 2011761856, now seen corresponding path program 1 times [2023-08-29 03:43:57,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:43:57,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313472828] [2023-08-29 03:43:57,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:43:57,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:43:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:43:57,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 03:43:57,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:43:57,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313472828] [2023-08-29 03:43:57,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313472828] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:43:57,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:43:57,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:43:57,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639129000] [2023-08-29 03:43:57,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:43:57,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:43:57,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:43:57,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:43:57,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:43:58,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 709 [2023-08-29 03:43:58,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 320.0) internal successors, (1920), 6 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:58,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:43:58,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 709 [2023-08-29 03:43:58,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:43:58,688 INFO L130 PetriNetUnfolder]: 3165/5774 cut-off events. [2023-08-29 03:43:58,688 INFO L131 PetriNetUnfolder]: For 969/1009 co-relation queries the response was YES. [2023-08-29 03:43:58,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11663 conditions, 5774 events. 3165/5774 cut-off events. For 969/1009 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 41061 event pairs, 806 based on Foata normal form. 0/5059 useless extension candidates. Maximal degree in co-relation 11657. Up to 1954 conditions per place. [2023-08-29 03:43:58,731 INFO L137 encePairwiseOnDemand]: 702/709 looper letters, 104 selfloop transitions, 5 changer transitions 0/147 dead transitions. [2023-08-29 03:43:58,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 147 transitions, 580 flow [2023-08-29 03:43:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:43:58,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:43:58,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2015 transitions. [2023-08-29 03:43:58,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47367183826986364 [2023-08-29 03:43:58,738 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2015 transitions. [2023-08-29 03:43:58,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2015 transitions. [2023-08-29 03:43:58,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:43:58,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2015 transitions. [2023-08-29 03:43:58,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 335.8333333333333) internal successors, (2015), 6 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:58,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:58,749 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:58,749 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 206 flow. Second operand 6 states and 2015 transitions. [2023-08-29 03:43:58,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 147 transitions, 580 flow [2023-08-29 03:43:58,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 147 transitions, 565 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 03:43:58,810 INFO L231 Difference]: Finished difference. Result has 91 places, 83 transitions, 205 flow [2023-08-29 03:43:58,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=205, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2023-08-29 03:43:58,811 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -36 predicate places. [2023-08-29 03:43:58,811 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 205 flow [2023-08-29 03:43:58,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 320.0) internal successors, (1920), 6 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:58,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:43:58,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:43:58,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 03:43:58,813 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 03:43:58,813 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:43:58,813 INFO L85 PathProgramCache]: Analyzing trace with hash -113558436, now seen corresponding path program 1 times [2023-08-29 03:43:58,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:43:58,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177919895] [2023-08-29 03:43:58,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:43:58,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:43:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:43:58,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:43:58,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:43:58,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177919895] [2023-08-29 03:43:58,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177919895] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:43:58,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120497070] [2023-08-29 03:43:58,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:43:58,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:43:58,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:43:58,937 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:43:58,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 03:43:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:43:59,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-29 03:43:59,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:43:59,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:43:59,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 03:43:59,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:43:59,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120497070] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 03:43:59,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 03:43:59,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-29 03:43:59,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584349830] [2023-08-29 03:43:59,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 03:43:59,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 03:43:59,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:43:59,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 03:43:59,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-08-29 03:43:59,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 709 [2023-08-29 03:43:59,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 205 flow. Second operand has 12 states, 12 states have (on average 325.5833333333333) internal successors, (3907), 12 states have internal predecessors, (3907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:59,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:43:59,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 709 [2023-08-29 03:43:59,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:00,356 INFO L130 PetriNetUnfolder]: 2456/5572 cut-off events. [2023-08-29 03:44:00,357 INFO L131 PetriNetUnfolder]: For 610/705 co-relation queries the response was YES. [2023-08-29 03:44:00,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10102 conditions, 5572 events. 2456/5572 cut-off events. For 610/705 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 47027 event pairs, 1124 based on Foata normal form. 13/4846 useless extension candidates. Maximal degree in co-relation 10096. Up to 2147 conditions per place. [2023-08-29 03:44:00,401 INFO L137 encePairwiseOnDemand]: 703/709 looper letters, 94 selfloop transitions, 6 changer transitions 0/146 dead transitions. [2023-08-29 03:44:00,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 146 transitions, 581 flow [2023-08-29 03:44:00,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 03:44:00,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 03:44:00,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2360 transitions. [2023-08-29 03:44:00,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4755188394116462 [2023-08-29 03:44:00,407 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2360 transitions. [2023-08-29 03:44:00,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2360 transitions. [2023-08-29 03:44:00,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:00,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2360 transitions. [2023-08-29 03:44:00,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 337.14285714285717) internal successors, (2360), 7 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:00,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 709.0) internal successors, (5672), 8 states have internal predecessors, (5672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:00,421 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 709.0) internal successors, (5672), 8 states have internal predecessors, (5672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:00,421 INFO L175 Difference]: Start difference. First operand has 91 places, 83 transitions, 205 flow. Second operand 7 states and 2360 transitions. [2023-08-29 03:44:00,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 146 transitions, 581 flow [2023-08-29 03:44:00,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 146 transitions, 565 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 03:44:00,425 INFO L231 Difference]: Finished difference. Result has 96 places, 87 transitions, 239 flow [2023-08-29 03:44:00,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=239, PETRI_PLACES=96, PETRI_TRANSITIONS=87} [2023-08-29 03:44:00,426 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -31 predicate places. [2023-08-29 03:44:00,426 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 87 transitions, 239 flow [2023-08-29 03:44:00,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 325.5833333333333) internal successors, (3907), 12 states have internal predecessors, (3907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:00,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:00,428 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:00,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 03:44:00,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:44:00,634 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 03:44:00,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:00,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1828434466, now seen corresponding path program 2 times [2023-08-29 03:44:00,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:00,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817110632] [2023-08-29 03:44:00,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:00,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:00,967 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 03:44:00,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:00,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817110632] [2023-08-29 03:44:00,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817110632] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:44:00,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:44:00,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:44:00,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968464481] [2023-08-29 03:44:00,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:00,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:44:00,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:00,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:44:00,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:44:01,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 709 [2023-08-29 03:44:01,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 87 transitions, 239 flow. Second operand has 6 states, 6 states have (on average 320.3333333333333) internal successors, (1922), 6 states have internal predecessors, (1922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:01,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:01,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 709 [2023-08-29 03:44:01,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:02,044 INFO L130 PetriNetUnfolder]: 3896/7460 cut-off events. [2023-08-29 03:44:02,045 INFO L131 PetriNetUnfolder]: For 1420/1499 co-relation queries the response was YES. [2023-08-29 03:44:02,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14890 conditions, 7460 events. 3896/7460 cut-off events. For 1420/1499 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 59852 event pairs, 1317 based on Foata normal form. 0/6567 useless extension candidates. Maximal degree in co-relation 14881. Up to 2670 conditions per place. [2023-08-29 03:44:02,097 INFO L137 encePairwiseOnDemand]: 702/709 looper letters, 108 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2023-08-29 03:44:02,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 149 transitions, 613 flow [2023-08-29 03:44:02,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:44:02,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:44:02,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2015 transitions. [2023-08-29 03:44:02,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47367183826986364 [2023-08-29 03:44:02,103 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2015 transitions. [2023-08-29 03:44:02,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2015 transitions. [2023-08-29 03:44:02,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:02,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2015 transitions. [2023-08-29 03:44:02,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 335.8333333333333) internal successors, (2015), 6 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:02,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:02,114 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:02,114 INFO L175 Difference]: Start difference. First operand has 96 places, 87 transitions, 239 flow. Second operand 6 states and 2015 transitions. [2023-08-29 03:44:02,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 149 transitions, 613 flow [2023-08-29 03:44:02,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 149 transitions, 605 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-29 03:44:02,118 INFO L231 Difference]: Finished difference. Result has 98 places, 85 transitions, 237 flow [2023-08-29 03:44:02,119 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=237, PETRI_PLACES=98, PETRI_TRANSITIONS=85} [2023-08-29 03:44:02,119 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -29 predicate places. [2023-08-29 03:44:02,120 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 85 transitions, 237 flow [2023-08-29 03:44:02,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 320.3333333333333) internal successors, (1922), 6 states have internal predecessors, (1922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:02,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:02,120 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] [2023-08-29 03:44:02,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 03:44:02,121 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 03:44:02,121 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:02,121 INFO L85 PathProgramCache]: Analyzing trace with hash -2034205084, now seen corresponding path program 1 times [2023-08-29 03:44:02,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:02,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239136658] [2023-08-29 03:44:02,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:02,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:02,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:44:02,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:02,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239136658] [2023-08-29 03:44:02,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239136658] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:44:02,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530709086] [2023-08-29 03:44:02,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:02,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:44:02,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:44:02,229 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:44:02,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 03:44:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:02,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 03:44:02,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:44:02,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:44:02,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 03:44:02,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:44:02,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530709086] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-29 03:44:02,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-29 03:44:02,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2023-08-29 03:44:02,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300109982] [2023-08-29 03:44:02,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:02,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 03:44:02,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:02,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 03:44:02,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 03:44:02,471 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 709 [2023-08-29 03:44:02,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 85 transitions, 237 flow. Second operand has 5 states, 5 states have (on average 328.6) internal successors, (1643), 5 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:02,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:02,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 709 [2023-08-29 03:44:02,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:02,861 INFO L130 PetriNetUnfolder]: 2248/5020 cut-off events. [2023-08-29 03:44:02,861 INFO L131 PetriNetUnfolder]: For 862/999 co-relation queries the response was YES. [2023-08-29 03:44:02,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9839 conditions, 5020 events. 2248/5020 cut-off events. For 862/999 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 39812 event pairs, 885 based on Foata normal form. 82/4660 useless extension candidates. Maximal degree in co-relation 9829. Up to 2134 conditions per place. [2023-08-29 03:44:02,894 INFO L137 encePairwiseOnDemand]: 703/709 looper letters, 55 selfloop transitions, 5 changer transitions 0/105 dead transitions. [2023-08-29 03:44:02,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 105 transitions, 418 flow [2023-08-29 03:44:02,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 03:44:02,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 03:44:02,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1682 transitions. [2023-08-29 03:44:02,899 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4744710860366714 [2023-08-29 03:44:02,899 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1682 transitions. [2023-08-29 03:44:02,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1682 transitions. [2023-08-29 03:44:02,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:02,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1682 transitions. [2023-08-29 03:44:02,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 336.4) internal successors, (1682), 5 states have internal predecessors, (1682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:02,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 709.0) internal successors, (4254), 6 states have internal predecessors, (4254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:02,909 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 709.0) internal successors, (4254), 6 states have internal predecessors, (4254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:02,909 INFO L175 Difference]: Start difference. First operand has 98 places, 85 transitions, 237 flow. Second operand 5 states and 1682 transitions. [2023-08-29 03:44:02,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 105 transitions, 418 flow [2023-08-29 03:44:02,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 105 transitions, 406 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 03:44:02,914 INFO L231 Difference]: Finished difference. Result has 99 places, 86 transitions, 250 flow [2023-08-29 03:44:02,914 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=250, PETRI_PLACES=99, PETRI_TRANSITIONS=86} [2023-08-29 03:44:02,915 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -28 predicate places. [2023-08-29 03:44:02,915 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 86 transitions, 250 flow [2023-08-29 03:44:02,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 328.6) internal successors, (1643), 5 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:02,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:02,916 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:02,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 03:44:03,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-08-29 03:44:03,122 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 03:44:03,123 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:03,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1254627050, now seen corresponding path program 1 times [2023-08-29 03:44:03,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:03,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003433696] [2023-08-29 03:44:03,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:03,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:03,501 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 03:44:03,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:03,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003433696] [2023-08-29 03:44:03,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003433696] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:44:03,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:44:03,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:44:03,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971956134] [2023-08-29 03:44:03,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:03,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:44:03,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:03,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:44:03,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:44:03,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 709 [2023-08-29 03:44:03,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 86 transitions, 250 flow. Second operand has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:03,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:03,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 709 [2023-08-29 03:44:03,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:04,434 INFO L130 PetriNetUnfolder]: 2244/4894 cut-off events. [2023-08-29 03:44:04,435 INFO L131 PetriNetUnfolder]: For 1573/1983 co-relation queries the response was YES. [2023-08-29 03:44:04,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10022 conditions, 4894 events. 2244/4894 cut-off events. For 1573/1983 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 38881 event pairs, 1287 based on Foata normal form. 302/4812 useless extension candidates. Maximal degree in co-relation 10010. Up to 2697 conditions per place. [2023-08-29 03:44:04,473 INFO L137 encePairwiseOnDemand]: 704/709 looper letters, 88 selfloop transitions, 4 changer transitions 0/133 dead transitions. [2023-08-29 03:44:04,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 133 transitions, 572 flow [2023-08-29 03:44:04,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:44:04,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:44:04,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2031 transitions. [2023-08-29 03:44:04,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4774330042313117 [2023-08-29 03:44:04,479 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2031 transitions. [2023-08-29 03:44:04,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2031 transitions. [2023-08-29 03:44:04,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:04,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2031 transitions. [2023-08-29 03:44:04,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 338.5) internal successors, (2031), 6 states have internal predecessors, (2031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:04,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:04,490 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:04,490 INFO L175 Difference]: Start difference. First operand has 99 places, 86 transitions, 250 flow. Second operand 6 states and 2031 transitions. [2023-08-29 03:44:04,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 133 transitions, 572 flow [2023-08-29 03:44:04,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 133 transitions, 566 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 03:44:04,495 INFO L231 Difference]: Finished difference. Result has 100 places, 85 transitions, 250 flow [2023-08-29 03:44:04,495 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=250, PETRI_PLACES=100, PETRI_TRANSITIONS=85} [2023-08-29 03:44:04,496 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -27 predicate places. [2023-08-29 03:44:04,496 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 85 transitions, 250 flow [2023-08-29 03:44:04,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:04,497 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:04,497 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:04,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 03:44:04,498 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 03:44:04,498 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:04,498 INFO L85 PathProgramCache]: Analyzing trace with hash -11730671, now seen corresponding path program 1 times [2023-08-29 03:44:04,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:04,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26692352] [2023-08-29 03:44:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:04,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:04,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 03:44:04,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:04,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26692352] [2023-08-29 03:44:04,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26692352] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:44:04,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:44:04,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:44:04,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585992083] [2023-08-29 03:44:04,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:04,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:44:04,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:04,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:44:04,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:44:05,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 709 [2023-08-29 03:44:05,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 85 transitions, 250 flow. Second operand has 6 states, 6 states have (on average 328.8333333333333) internal successors, (1973), 6 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:05,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:05,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 709 [2023-08-29 03:44:05,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:05,594 INFO L130 PetriNetUnfolder]: 2016/4660 cut-off events. [2023-08-29 03:44:05,594 INFO L131 PetriNetUnfolder]: For 1321/1719 co-relation queries the response was YES. [2023-08-29 03:44:05,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9369 conditions, 4660 events. 2016/4660 cut-off events. For 1321/1719 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 38031 event pairs, 1335 based on Foata normal form. 290/4581 useless extension candidates. Maximal degree in co-relation 9357. Up to 2802 conditions per place. [2023-08-29 03:44:05,606 INFO L137 encePairwiseOnDemand]: 704/709 looper letters, 0 selfloop transitions, 0 changer transitions 96/96 dead transitions. [2023-08-29 03:44:05,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 96 transitions, 392 flow [2023-08-29 03:44:05,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:44:05,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:44:05,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1999 transitions. [2023-08-29 03:44:05,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4699106723084156 [2023-08-29 03:44:05,612 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1999 transitions. [2023-08-29 03:44:05,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1999 transitions. [2023-08-29 03:44:05,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:05,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1999 transitions. [2023-08-29 03:44:05,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 333.1666666666667) internal successors, (1999), 6 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:05,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:05,624 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:05,624 INFO L175 Difference]: Start difference. First operand has 100 places, 85 transitions, 250 flow. Second operand 6 states and 1999 transitions. [2023-08-29 03:44:05,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 96 transitions, 392 flow [2023-08-29 03:44:05,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 96 transitions, 385 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 03:44:05,630 INFO L231 Difference]: Finished difference. Result has 100 places, 0 transitions, 0 flow [2023-08-29 03:44:05,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=100, PETRI_TRANSITIONS=0} [2023-08-29 03:44:05,631 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -27 predicate places. [2023-08-29 03:44:05,631 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 0 transitions, 0 flow [2023-08-29 03:44:05,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.8333333333333) internal successors, (1973), 6 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:05,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (78 of 79 remaining) [2023-08-29 03:44:05,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (77 of 79 remaining) [2023-08-29 03:44:05,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (76 of 79 remaining) [2023-08-29 03:44:05,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (75 of 79 remaining) [2023-08-29 03:44:05,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (74 of 79 remaining) [2023-08-29 03:44:05,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (73 of 79 remaining) [2023-08-29 03:44:05,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (72 of 79 remaining) [2023-08-29 03:44:05,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (71 of 79 remaining) [2023-08-29 03:44:05,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (70 of 79 remaining) [2023-08-29 03:44:05,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (69 of 79 remaining) [2023-08-29 03:44:05,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (68 of 79 remaining) [2023-08-29 03:44:05,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (67 of 79 remaining) [2023-08-29 03:44:05,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (66 of 79 remaining) [2023-08-29 03:44:05,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (65 of 79 remaining) [2023-08-29 03:44:05,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (64 of 79 remaining) [2023-08-29 03:44:05,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (63 of 79 remaining) [2023-08-29 03:44:05,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (62 of 79 remaining) [2023-08-29 03:44:05,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (61 of 79 remaining) [2023-08-29 03:44:05,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (60 of 79 remaining) [2023-08-29 03:44:05,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (59 of 79 remaining) [2023-08-29 03:44:05,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (58 of 79 remaining) [2023-08-29 03:44:05,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (57 of 79 remaining) [2023-08-29 03:44:05,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (56 of 79 remaining) [2023-08-29 03:44:05,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (55 of 79 remaining) [2023-08-29 03:44:05,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (54 of 79 remaining) [2023-08-29 03:44:05,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (53 of 79 remaining) [2023-08-29 03:44:05,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (52 of 79 remaining) [2023-08-29 03:44:05,640 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONDATA_RACE (51 of 79 remaining) [2023-08-29 03:44:05,640 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONDATA_RACE (50 of 79 remaining) [2023-08-29 03:44:05,640 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 79 remaining) [2023-08-29 03:44:05,640 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (48 of 79 remaining) [2023-08-29 03:44:05,640 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 79 remaining) [2023-08-29 03:44:05,640 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (46 of 79 remaining) [2023-08-29 03:44:05,641 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (45 of 79 remaining) [2023-08-29 03:44:05,641 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (44 of 79 remaining) [2023-08-29 03:44:05,641 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (43 of 79 remaining) [2023-08-29 03:44:05,641 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (42 of 79 remaining) [2023-08-29 03:44:05,641 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (41 of 79 remaining) [2023-08-29 03:44:05,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (40 of 79 remaining) [2023-08-29 03:44:05,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (39 of 79 remaining) [2023-08-29 03:44:05,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (38 of 79 remaining) [2023-08-29 03:44:05,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (37 of 79 remaining) [2023-08-29 03:44:05,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (36 of 79 remaining) [2023-08-29 03:44:05,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (35 of 79 remaining) [2023-08-29 03:44:05,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (34 of 79 remaining) [2023-08-29 03:44:05,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (33 of 79 remaining) [2023-08-29 03:44:05,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (32 of 79 remaining) [2023-08-29 03:44:05,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 79 remaining) [2023-08-29 03:44:05,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 79 remaining) [2023-08-29 03:44:05,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 79 remaining) [2023-08-29 03:44:05,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 79 remaining) [2023-08-29 03:44:05,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 79 remaining) [2023-08-29 03:44:05,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 79 remaining) [2023-08-29 03:44:05,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 79 remaining) [2023-08-29 03:44:05,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 79 remaining) [2023-08-29 03:44:05,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (23 of 79 remaining) [2023-08-29 03:44:05,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (22 of 79 remaining) [2023-08-29 03:44:05,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (21 of 79 remaining) [2023-08-29 03:44:05,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (20 of 79 remaining) [2023-08-29 03:44:05,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (19 of 79 remaining) [2023-08-29 03:44:05,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (18 of 79 remaining) [2023-08-29 03:44:05,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (17 of 79 remaining) [2023-08-29 03:44:05,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (16 of 79 remaining) [2023-08-29 03:44:05,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (15 of 79 remaining) [2023-08-29 03:44:05,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (14 of 79 remaining) [2023-08-29 03:44:05,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (13 of 79 remaining) [2023-08-29 03:44:05,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (12 of 79 remaining) [2023-08-29 03:44:05,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (11 of 79 remaining) [2023-08-29 03:44:05,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (10 of 79 remaining) [2023-08-29 03:44:05,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (9 of 79 remaining) [2023-08-29 03:44:05,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (8 of 79 remaining) [2023-08-29 03:44:05,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (7 of 79 remaining) [2023-08-29 03:44:05,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (6 of 79 remaining) [2023-08-29 03:44:05,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (5 of 79 remaining) [2023-08-29 03:44:05,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (4 of 79 remaining) [2023-08-29 03:44:05,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (3 of 79 remaining) [2023-08-29 03:44:05,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (2 of 79 remaining) [2023-08-29 03:44:05,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONDATA_RACE (1 of 79 remaining) [2023-08-29 03:44:05,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONDATA_RACE (0 of 79 remaining) [2023-08-29 03:44:05,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 03:44:05,649 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:05,654 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 03:44:05,655 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 03:44:05,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:44:05 BasicIcfg [2023-08-29 03:44:05,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 03:44:05,659 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 03:44:05,659 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 03:44:05,659 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 03:44:05,659 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:43:41" (3/4) ... [2023-08-29 03:44:05,661 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 03:44:05,665 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 03:44:05,666 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 03:44:05,666 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-29 03:44:05,671 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-08-29 03:44:05,672 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 03:44:05,672 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 03:44:05,672 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 03:44:05,725 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 03:44:05,725 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 03:44:05,726 INFO L158 Benchmark]: Toolchain (without parser) took 26263.92ms. Allocated memory was 71.3MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 45.3MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 254.4MB. Max. memory is 16.1GB. [2023-08-29 03:44:05,726 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 03:44:05,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.25ms. Allocated memory is still 71.3MB. Free memory was 45.1MB in the beginning and 49.6MB in the end (delta: -4.5MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2023-08-29 03:44:05,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.12ms. Allocated memory is still 71.3MB. Free memory was 49.6MB in the beginning and 46.1MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 03:44:05,727 INFO L158 Benchmark]: Boogie Preprocessor took 60.65ms. Allocated memory is still 71.3MB. Free memory was 46.1MB in the beginning and 42.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 03:44:05,727 INFO L158 Benchmark]: RCFGBuilder took 1087.74ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 42.9MB in the beginning and 54.4MB in the end (delta: -11.5MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2023-08-29 03:44:05,728 INFO L158 Benchmark]: TraceAbstraction took 24609.14ms. Allocated memory was 96.5MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 53.4MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 638.5MB. Max. memory is 16.1GB. [2023-08-29 03:44:05,728 INFO L158 Benchmark]: Witness Printer took 66.82ms. Allocated memory is still 1.8GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 03:44:05,731 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.25ms. Allocated memory is still 71.3MB. Free memory was 45.1MB in the beginning and 49.6MB in the end (delta: -4.5MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.12ms. Allocated memory is still 71.3MB. Free memory was 49.6MB in the beginning and 46.1MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.65ms. Allocated memory is still 71.3MB. Free memory was 46.1MB in the beginning and 42.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1087.74ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 42.9MB in the beginning and 54.4MB in the end (delta: -11.5MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * TraceAbstraction took 24609.14ms. Allocated memory was 96.5MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 53.4MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 638.5MB. Max. memory is 16.1GB. * Witness Printer took 66.82ms. Allocated memory is still 1.8GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 4.2MB). 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: 10.4s, 337 PlacesBefore, 127 PlacesAfterwards, 345 TransitionsBefore, 127 TransitionsAfterwards, 26082 CoEnabledTransitionPairs, 9 FixpointIterations, 157 TrivialSequentialCompositions, 131 ConcurrentSequentialCompositions, 15 TrivialYvCompositions, 29 ConcurrentYvCompositions, 8 ChoiceCompositions, 340 TotalNumberOfCompositions, 134949 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33598, independent: 32056, independent conditional: 0, independent unconditional: 32056, dependent: 1542, dependent conditional: 0, dependent unconditional: 1542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 13265, independent: 13076, independent conditional: 0, independent unconditional: 13076, dependent: 189, dependent conditional: 0, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 33598, independent: 18980, independent conditional: 0, independent unconditional: 18980, dependent: 1353, dependent conditional: 0, dependent unconditional: 1353, unknown: 13265, unknown conditional: 0, unknown unconditional: 13265] , Statistics on independence cache: Total cache size (in pairs): 1233, Positive cache size: 1107, Positive conditional cache size: 0, Positive unconditional cache size: 1107, Negative cache size: 126, Negative conditional cache size: 0, Negative unconditional cache size: 126, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: 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 7 procedures, 515 locations, 79 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: 24.4s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2085 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1437 mSDsluCounter, 433 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 349 mSDsCounter, 612 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4308 IncrementalHoareTripleChecker+Invalid, 4920 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 612 mSolverCounterUnsat, 84 mSDtfsCounter, 4308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred in iteration=0, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 234 NumberOfCodeBlocks, 234 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 257 ConstructedInterpolants, 0 QuantifiedInterpolants, 896 SizeOfPredicates, 11 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 12/17 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 47 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 03:44:05,769 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