./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-28 17:52:30,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 17:52:30,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 17:52:30,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 17:52:30,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 17:52:30,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 17:52:30,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 17:52:30,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 17:52:30,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 17:52:30,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 17:52:30,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 17:52:30,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 17:52:30,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 17:52:30,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 17:52:30,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 17:52:30,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 17:52:30,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 17:52:30,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 17:52:30,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 17:52:30,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 17:52:30,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 17:52:30,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 17:52:30,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 17:52:30,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 17:52:30,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 17:52:30,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 17:52:30,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 17:52:30,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 17:52:30,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 17:52:30,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 17:52:30,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 17:52:30,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 17:52:30,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 17:52:30,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 17:52:30,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 17:52:30,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 17:52:30,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 17:52:30,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 17:52:30,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 17:52:30,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 17:52:30,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 17:52:30,591 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 17:52:30,611 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 17:52:30,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 17:52:30,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 17:52:30,612 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 17:52:30,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 17:52:30,613 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 17:52:30,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 17:52:30,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 17:52:30,614 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 17:52:30,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 17:52:30,614 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 17:52:30,614 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 17:52:30,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 17:52:30,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 17:52:30,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 17:52:30,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 17:52:30,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 17:52:30,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 17:52:30,615 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 17:52:30,615 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 17:52:30,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 17:52:30,616 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 17:52:30,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 17:52:30,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 17:52:30,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 17:52:30,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 17:52:30,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:52:30,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 17:52:30,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 17:52:30,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 17:52:30,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 17:52:30,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 17:52:30,618 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 17:52:30,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 17:52:30,618 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 17:52:30,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 17:52:30,618 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 17:52:30,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 17:52:30,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 17:52:30,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 17:52:30,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 17:52:30,944 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 17:52:30,944 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 17:52:30,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2023-08-28 17:52:32,182 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 17:52:32,469 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 17:52:32,474 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2023-08-28 17:52:32,491 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1d22c0f7/f2f3f2fa878b4dbb9631a7533ca7a35a/FLAG645f1e98f [2023-08-28 17:52:32,509 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1d22c0f7/f2f3f2fa878b4dbb9631a7533ca7a35a [2023-08-28 17:52:32,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 17:52:32,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 17:52:32,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 17:52:32,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 17:52:32,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 17:52:32,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:52:32" (1/1) ... [2023-08-28 17:52:32,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@361cef44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:32, skipping insertion in model container [2023-08-28 17:52:32,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:52:32" (1/1) ... [2023-08-28 17:52:32,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 17:52:32,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 17:52:32,734 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-28 17:52:32,870 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2023-08-28 17:52:32,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:52:32,892 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 17:52:32,904 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-28 17:52:32,921 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2023-08-28 17:52:32,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:52:32,963 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 17:52:32,963 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 17:52:32,963 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 17:52:32,968 INFO L208 MainTranslator]: Completed translation [2023-08-28 17:52:32,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:32 WrapperNode [2023-08-28 17:52:32,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 17:52:32,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 17:52:32,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 17:52:32,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 17:52:32,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:32" (1/1) ... [2023-08-28 17:52:33,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:32" (1/1) ... [2023-08-28 17:52:33,057 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 178 [2023-08-28 17:52:33,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 17:52:33,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 17:52:33,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 17:52:33,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 17:52:33,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:32" (1/1) ... [2023-08-28 17:52:33,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:32" (1/1) ... [2023-08-28 17:52:33,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:32" (1/1) ... [2023-08-28 17:52:33,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:32" (1/1) ... [2023-08-28 17:52:33,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:32" (1/1) ... [2023-08-28 17:52:33,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:32" (1/1) ... [2023-08-28 17:52:33,080 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:32" (1/1) ... [2023-08-28 17:52:33,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:32" (1/1) ... [2023-08-28 17:52:33,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 17:52:33,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 17:52:33,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 17:52:33,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 17:52:33,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:32" (1/1) ... [2023-08-28 17:52:33,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:52:33,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 17:52:33,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-28 17:52:33,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-28 17:52:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-28 17:52:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 17:52:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-28 17:52:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 17:52:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2023-08-28 17:52:33,165 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2023-08-28 17:52:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 17:52:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 17:52:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 17:52:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-28 17:52:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 17:52:33,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 17:52:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2023-08-28 17:52:33,166 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2023-08-28 17:52:33,167 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-28 17:52:33,296 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 17:52:33,298 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 17:52:33,624 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 17:52:33,753 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 17:52:33,754 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-28 17:52:33,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:52:33 BoogieIcfgContainer [2023-08-28 17:52:33,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 17:52:33,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 17:52:33,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 17:52:33,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 17:52:33,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 05:52:32" (1/3) ... [2023-08-28 17:52:33,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69194877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:52:33, skipping insertion in model container [2023-08-28 17:52:33,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:32" (2/3) ... [2023-08-28 17:52:33,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69194877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:52:33, skipping insertion in model container [2023-08-28 17:52:33,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:52:33" (3/3) ... [2023-08-28 17:52:33,765 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2023-08-28 17:52:33,772 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 17:52:33,779 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 17:52:33,779 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-28 17:52:33,779 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 17:52:33,860 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-28 17:52:33,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 166 transitions, 364 flow [2023-08-28 17:52:33,956 INFO L130 PetriNetUnfolder]: 2/162 cut-off events. [2023-08-28 17:52:33,956 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-28 17:52:33,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 162 events. 2/162 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 252 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2023-08-28 17:52:33,962 INFO L82 GeneralOperation]: Start removeDead. Operand has 177 places, 166 transitions, 364 flow [2023-08-28 17:52:33,967 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 149 transitions, 319 flow [2023-08-28 17:52:33,970 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 17:52:33,977 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 149 transitions, 319 flow [2023-08-28 17:52:33,980 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 149 transitions, 319 flow [2023-08-28 17:52:33,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 149 transitions, 319 flow [2023-08-28 17:52:34,008 INFO L130 PetriNetUnfolder]: 2/149 cut-off events. [2023-08-28 17:52:34,008 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-28 17:52:34,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 149 events. 2/149 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 252 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2023-08-28 17:52:34,014 INFO L119 LiptonReduction]: Number of co-enabled transitions 8762 [2023-08-28 17:52:37,300 INFO L134 LiptonReduction]: Checked pairs total: 27602 [2023-08-28 17:52:37,300 INFO L136 LiptonReduction]: Total number of compositions: 111 [2023-08-28 17:52:37,312 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 17:52:37,317 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;@90a67db, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 17:52:37,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-08-28 17:52:37,320 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-08-28 17:52:37,320 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:52:37,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:37,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-28 17:52:37,321 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr1ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-28 17:52:37,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:37,326 INFO L85 PathProgramCache]: Analyzing trace with hash 622841, now seen corresponding path program 1 times [2023-08-28 17:52:37,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:37,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41607254] [2023-08-28 17:52:37,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:37,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:37,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:37,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:37,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41607254] [2023-08-28 17:52:37,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41607254] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:37,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:37,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-28 17:52:37,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048193604] [2023-08-28 17:52:37,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:37,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 17:52:37,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:37,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 17:52:37,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 17:52:37,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 277 [2023-08-28 17:52:37,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 69 transitions, 159 flow. Second operand has 2 states, 2 states have (on average 115.5) internal successors, (231), 2 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:37,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:37,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 277 [2023-08-28 17:52:37,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:38,282 INFO L130 PetriNetUnfolder]: 5949/8451 cut-off events. [2023-08-28 17:52:38,283 INFO L131 PetriNetUnfolder]: For 643/643 co-relation queries the response was YES. [2023-08-28 17:52:38,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17246 conditions, 8451 events. 5949/8451 cut-off events. For 643/643 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 45087 event pairs, 5949 based on Foata normal form. 0/8271 useless extension candidates. Maximal degree in co-relation 13943. Up to 8269 conditions per place. [2023-08-28 17:52:38,334 INFO L137 encePairwiseOnDemand]: 247/277 looper letters, 31 selfloop transitions, 0 changer transitions 2/39 dead transitions. [2023-08-28 17:52:38,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 39 transitions, 165 flow [2023-08-28 17:52:38,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-28 17:52:38,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-28 17:52:38,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 291 transitions. [2023-08-28 17:52:38,351 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5252707581227437 [2023-08-28 17:52:38,352 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 291 transitions. [2023-08-28 17:52:38,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 291 transitions. [2023-08-28 17:52:38,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:38,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 291 transitions. [2023-08-28 17:52:38,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:38,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:38,361 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:38,363 INFO L175 Difference]: Start difference. First operand has 82 places, 69 transitions, 159 flow. Second operand 2 states and 291 transitions. [2023-08-28 17:52:38,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 39 transitions, 165 flow [2023-08-28 17:52:38,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 152 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-28 17:52:38,398 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 81 flow [2023-08-28 17:52:38,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=81, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2023-08-28 17:52:38,403 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -36 predicate places. [2023-08-28 17:52:38,403 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 81 flow [2023-08-28 17:52:38,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 115.5) internal successors, (231), 2 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:38,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:38,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-28 17:52:38,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-28 17:52:38,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-28 17:52:38,405 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:38,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1375714085, now seen corresponding path program 1 times [2023-08-28 17:52:38,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:38,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781334085] [2023-08-28 17:52:38,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:38,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:38,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:38,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:38,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781334085] [2023-08-28 17:52:38,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781334085] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:38,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:38,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:38,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629432235] [2023-08-28 17:52:38,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:38,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:38,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:38,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:38,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:38,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 277 [2023-08-28 17:52:38,493 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:38,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:38,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 277 [2023-08-28 17:52:38,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:39,820 INFO L130 PetriNetUnfolder]: 13911/19279 cut-off events. [2023-08-28 17:52:39,820 INFO L131 PetriNetUnfolder]: For 209/209 co-relation queries the response was YES. [2023-08-28 17:52:39,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38816 conditions, 19279 events. 13911/19279 cut-off events. For 209/209 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 104498 event pairs, 9371 based on Foata normal form. 0/18471 useless extension candidates. Maximal degree in co-relation 38813. Up to 14719 conditions per place. [2023-08-28 17:52:39,929 INFO L137 encePairwiseOnDemand]: 268/277 looper letters, 51 selfloop transitions, 8 changer transitions 0/62 dead transitions. [2023-08-28 17:52:39,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 62 transitions, 253 flow [2023-08-28 17:52:39,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:39,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:39,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2023-08-28 17:52:39,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4620938628158845 [2023-08-28 17:52:39,933 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2023-08-28 17:52:39,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2023-08-28 17:52:39,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:39,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2023-08-28 17:52:39,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:39,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:39,939 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:39,939 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 81 flow. Second operand 3 states and 384 transitions. [2023-08-28 17:52:39,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 62 transitions, 253 flow [2023-08-28 17:52:39,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 62 transitions, 253 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 17:52:39,941 INFO L231 Difference]: Finished difference. Result has 48 places, 44 transitions, 143 flow [2023-08-28 17:52:39,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=48, PETRI_TRANSITIONS=44} [2023-08-28 17:52:39,942 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -34 predicate places. [2023-08-28 17:52:39,942 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 44 transitions, 143 flow [2023-08-28 17:52:39,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:39,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:39,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:39,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-28 17:52:39,943 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-28 17:52:39,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:39,945 INFO L85 PathProgramCache]: Analyzing trace with hash 2013711670, now seen corresponding path program 1 times [2023-08-28 17:52:39,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:39,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707027397] [2023-08-28 17:52:39,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:39,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:40,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:40,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:40,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707027397] [2023-08-28 17:52:40,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707027397] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:40,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:40,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-28 17:52:40,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192604853] [2023-08-28 17:52:40,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:40,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:40,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:40,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:40,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:40,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 277 [2023-08-28 17:52:40,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:40,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:40,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 277 [2023-08-28 17:52:40,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:40,740 INFO L130 PetriNetUnfolder]: 4919/8828 cut-off events. [2023-08-28 17:52:40,741 INFO L131 PetriNetUnfolder]: For 2686/2686 co-relation queries the response was YES. [2023-08-28 17:52:40,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20120 conditions, 8828 events. 4919/8828 cut-off events. For 2686/2686 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 63817 event pairs, 1505 based on Foata normal form. 1062/9476 useless extension candidates. Maximal degree in co-relation 20115. Up to 4772 conditions per place. [2023-08-28 17:52:40,773 INFO L137 encePairwiseOnDemand]: 271/277 looper letters, 52 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2023-08-28 17:52:40,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 64 transitions, 307 flow [2023-08-28 17:52:40,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:40,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:40,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2023-08-28 17:52:40,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4753309265944645 [2023-08-28 17:52:40,775 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2023-08-28 17:52:40,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2023-08-28 17:52:40,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:40,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2023-08-28 17:52:40,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:40,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:40,779 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:40,779 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 143 flow. Second operand 3 states and 395 transitions. [2023-08-28 17:52:40,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 64 transitions, 307 flow [2023-08-28 17:52:40,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 64 transitions, 293 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:52:40,804 INFO L231 Difference]: Finished difference. Result has 49 places, 43 transitions, 142 flow [2023-08-28 17:52:40,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=49, PETRI_TRANSITIONS=43} [2023-08-28 17:52:40,805 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -33 predicate places. [2023-08-28 17:52:40,805 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 43 transitions, 142 flow [2023-08-28 17:52:40,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:40,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:40,806 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:40,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-28 17:52:40,806 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-28 17:52:40,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:40,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1302855258, now seen corresponding path program 2 times [2023-08-28 17:52:40,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:40,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862049678] [2023-08-28 17:52:40,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:40,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:40,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:40,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:40,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862049678] [2023-08-28 17:52:40,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862049678] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:40,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:40,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-28 17:52:40,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205582806] [2023-08-28 17:52:40,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:40,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-28 17:52:40,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:40,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-28 17:52:40,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-28 17:52:40,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 277 [2023-08-28 17:52:40,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 43 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:40,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:40,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 277 [2023-08-28 17:52:40,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:41,199 INFO L130 PetriNetUnfolder]: 2054/3779 cut-off events. [2023-08-28 17:52:41,200 INFO L131 PetriNetUnfolder]: For 3088/3138 co-relation queries the response was YES. [2023-08-28 17:52:41,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9418 conditions, 3779 events. 2054/3779 cut-off events. For 3088/3138 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 24104 event pairs, 628 based on Foata normal form. 476/4106 useless extension candidates. Maximal degree in co-relation 9412. Up to 1549 conditions per place. [2023-08-28 17:52:41,214 INFO L137 encePairwiseOnDemand]: 270/277 looper letters, 75 selfloop transitions, 9 changer transitions 1/92 dead transitions. [2023-08-28 17:52:41,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 92 transitions, 465 flow [2023-08-28 17:52:41,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-28 17:52:41,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-28 17:52:41,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 533 transitions. [2023-08-28 17:52:41,216 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48104693140794225 [2023-08-28 17:52:41,216 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 533 transitions. [2023-08-28 17:52:41,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 533 transitions. [2023-08-28 17:52:41,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:41,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 533 transitions. [2023-08-28 17:52:41,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:41,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 277.0) internal successors, (1385), 5 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:41,221 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 277.0) internal successors, (1385), 5 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:41,222 INFO L175 Difference]: Start difference. First operand has 49 places, 43 transitions, 142 flow. Second operand 4 states and 533 transitions. [2023-08-28 17:52:41,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 92 transitions, 465 flow [2023-08-28 17:52:41,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 92 transitions, 445 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:52:41,227 INFO L231 Difference]: Finished difference. Result has 53 places, 51 transitions, 206 flow [2023-08-28 17:52:41,227 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=206, PETRI_PLACES=53, PETRI_TRANSITIONS=51} [2023-08-28 17:52:41,228 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -29 predicate places. [2023-08-28 17:52:41,228 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 206 flow [2023-08-28 17:52:41,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:41,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:41,229 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:41,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-28 17:52:41,229 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-28 17:52:41,229 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:41,229 INFO L85 PathProgramCache]: Analyzing trace with hash -2080468331, now seen corresponding path program 1 times [2023-08-28 17:52:41,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:41,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480140961] [2023-08-28 17:52:41,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:41,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:41,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:41,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:41,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480140961] [2023-08-28 17:52:41,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480140961] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:41,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:41,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:41,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857861604] [2023-08-28 17:52:41,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:41,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:41,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:41,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:41,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:41,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 277 [2023-08-28 17:52:41,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:41,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:41,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 277 [2023-08-28 17:52:41,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:41,608 INFO L130 PetriNetUnfolder]: 2570/4561 cut-off events. [2023-08-28 17:52:41,609 INFO L131 PetriNetUnfolder]: For 3430/3443 co-relation queries the response was YES. [2023-08-28 17:52:41,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12202 conditions, 4561 events. 2570/4561 cut-off events. For 3430/3443 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 27548 event pairs, 1786 based on Foata normal form. 0/4469 useless extension candidates. Maximal degree in co-relation 12194. Up to 3870 conditions per place. [2023-08-28 17:52:41,626 INFO L137 encePairwiseOnDemand]: 269/277 looper letters, 55 selfloop transitions, 7 changer transitions 4/70 dead transitions. [2023-08-28 17:52:41,626 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 70 transitions, 397 flow [2023-08-28 17:52:41,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:41,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:41,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2023-08-28 17:52:41,628 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4548736462093863 [2023-08-28 17:52:41,628 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 378 transitions. [2023-08-28 17:52:41,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 378 transitions. [2023-08-28 17:52:41,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:41,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 378 transitions. [2023-08-28 17:52:41,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:41,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:41,632 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:41,632 INFO L175 Difference]: Start difference. First operand has 53 places, 51 transitions, 206 flow. Second operand 3 states and 378 transitions. [2023-08-28 17:52:41,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 70 transitions, 397 flow [2023-08-28 17:52:41,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 70 transitions, 397 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 17:52:41,636 INFO L231 Difference]: Finished difference. Result has 57 places, 55 transitions, 261 flow [2023-08-28 17:52:41,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=261, PETRI_PLACES=57, PETRI_TRANSITIONS=55} [2023-08-28 17:52:41,637 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -25 predicate places. [2023-08-28 17:52:41,637 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 55 transitions, 261 flow [2023-08-28 17:52:41,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:41,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:41,638 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] [2023-08-28 17:52:41,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-28 17:52:41,638 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-28 17:52:41,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:41,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1141025407, now seen corresponding path program 1 times [2023-08-28 17:52:41,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:41,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197641778] [2023-08-28 17:52:41,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:41,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:41,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:41,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:41,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197641778] [2023-08-28 17:52:41,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197641778] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:41,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:41,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-28 17:52:41,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936579333] [2023-08-28 17:52:41,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:41,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-28 17:52:41,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:41,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-28 17:52:41,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-28 17:52:41,725 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 277 [2023-08-28 17:52:41,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 261 flow. Second operand has 5 states, 5 states have (on average 116.6) internal successors, (583), 5 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:41,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:41,726 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 277 [2023-08-28 17:52:41,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:42,176 INFO L130 PetriNetUnfolder]: 2226/4127 cut-off events. [2023-08-28 17:52:42,176 INFO L131 PetriNetUnfolder]: For 5007/5113 co-relation queries the response was YES. [2023-08-28 17:52:42,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12366 conditions, 4127 events. 2226/4127 cut-off events. For 5007/5113 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 27248 event pairs, 530 based on Foata normal form. 134/4141 useless extension candidates. Maximal degree in co-relation 12356. Up to 1710 conditions per place. [2023-08-28 17:52:42,191 INFO L137 encePairwiseOnDemand]: 270/277 looper letters, 68 selfloop transitions, 9 changer transitions 25/110 dead transitions. [2023-08-28 17:52:42,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 110 transitions, 666 flow [2023-08-28 17:52:42,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-28 17:52:42,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-28 17:52:42,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 657 transitions. [2023-08-28 17:52:42,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47436823104693143 [2023-08-28 17:52:42,194 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 657 transitions. [2023-08-28 17:52:42,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 657 transitions. [2023-08-28 17:52:42,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:42,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 657 transitions. [2023-08-28 17:52:42,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 131.4) internal successors, (657), 5 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:42,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 277.0) internal successors, (1662), 6 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:42,199 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 277.0) internal successors, (1662), 6 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:42,200 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 261 flow. Second operand 5 states and 657 transitions. [2023-08-28 17:52:42,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 110 transitions, 666 flow [2023-08-28 17:52:42,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 110 transitions, 642 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-28 17:52:42,207 INFO L231 Difference]: Finished difference. Result has 60 places, 55 transitions, 265 flow [2023-08-28 17:52:42,207 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=265, PETRI_PLACES=60, PETRI_TRANSITIONS=55} [2023-08-28 17:52:42,208 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -22 predicate places. [2023-08-28 17:52:42,208 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 55 transitions, 265 flow [2023-08-28 17:52:42,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.6) internal successors, (583), 5 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:42,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:42,209 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] [2023-08-28 17:52:42,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-28 17:52:42,209 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-28 17:52:42,210 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:42,210 INFO L85 PathProgramCache]: Analyzing trace with hash 607001847, now seen corresponding path program 2 times [2023-08-28 17:52:42,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:42,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915278936] [2023-08-28 17:52:42,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:42,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:42,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:42,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:42,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915278936] [2023-08-28 17:52:42,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915278936] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:42,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:42,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-28 17:52:42,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421303053] [2023-08-28 17:52:42,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:42,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-28 17:52:42,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:42,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-28 17:52:42,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-28 17:52:42,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 277 [2023-08-28 17:52:42,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 55 transitions, 265 flow. Second operand has 5 states, 5 states have (on average 116.6) internal successors, (583), 5 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:42,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:42,332 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 277 [2023-08-28 17:52:42,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:42,508 INFO L130 PetriNetUnfolder]: 545/1304 cut-off events. [2023-08-28 17:52:42,509 INFO L131 PetriNetUnfolder]: For 2688/2707 co-relation queries the response was YES. [2023-08-28 17:52:42,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4015 conditions, 1304 events. 545/1304 cut-off events. For 2688/2707 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 7990 event pairs, 148 based on Foata normal form. 114/1407 useless extension candidates. Maximal degree in co-relation 4004. Up to 770 conditions per place. [2023-08-28 17:52:42,513 INFO L137 encePairwiseOnDemand]: 270/277 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2023-08-28 17:52:42,513 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 343 flow [2023-08-28 17:52:42,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-28 17:52:42,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-28 17:52:42,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 620 transitions. [2023-08-28 17:52:42,516 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44765342960288806 [2023-08-28 17:52:42,516 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 620 transitions. [2023-08-28 17:52:42,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 620 transitions. [2023-08-28 17:52:42,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:42,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 620 transitions. [2023-08-28 17:52:42,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:42,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 277.0) internal successors, (1662), 6 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:42,521 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 277.0) internal successors, (1662), 6 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:42,521 INFO L175 Difference]: Start difference. First operand has 60 places, 55 transitions, 265 flow. Second operand 5 states and 620 transitions. [2023-08-28 17:52:42,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 343 flow [2023-08-28 17:52:42,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 57 transitions, 295 flow, removed 13 selfloop flow, removed 7 redundant places. [2023-08-28 17:52:42,526 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2023-08-28 17:52:42,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2023-08-28 17:52:42,526 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -28 predicate places. [2023-08-28 17:52:42,527 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2023-08-28 17:52:42,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.6) internal successors, (583), 5 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:42,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (49 of 50 remaining) [2023-08-28 17:52:42,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2023-08-28 17:52:42,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2023-08-28 17:52:42,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2023-08-28 17:52:42,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2023-08-28 17:52:42,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2023-08-28 17:52:42,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (43 of 50 remaining) [2023-08-28 17:52:42,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2023-08-28 17:52:42,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2023-08-28 17:52:42,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2023-08-28 17:52:42,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2023-08-28 17:52:42,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2023-08-28 17:52:42,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2023-08-28 17:52:42,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 50 remaining) [2023-08-28 17:52:42,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 50 remaining) [2023-08-28 17:52:42,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 50 remaining) [2023-08-28 17:52:42,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 50 remaining) [2023-08-28 17:52:42,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2023-08-28 17:52:42,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2023-08-28 17:52:42,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2023-08-28 17:52:42,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2023-08-28 17:52:42,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2023-08-28 17:52:42,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2023-08-28 17:52:42,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2023-08-28 17:52:42,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2023-08-28 17:52:42,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2023-08-28 17:52:42,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2023-08-28 17:52:42,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2023-08-28 17:52:42,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2023-08-28 17:52:42,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2023-08-28 17:52:42,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2023-08-28 17:52:42,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2023-08-28 17:52:42,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2023-08-28 17:52:42,537 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2023-08-28 17:52:42,537 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2023-08-28 17:52:42,537 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2023-08-28 17:52:42,537 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2023-08-28 17:52:42,537 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2023-08-28 17:52:42,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2023-08-28 17:52:42,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2023-08-28 17:52:42,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2023-08-28 17:52:42,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2023-08-28 17:52:42,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2023-08-28 17:52:42,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2023-08-28 17:52:42,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2023-08-28 17:52:42,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2023-08-28 17:52:42,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2023-08-28 17:52:42,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2023-08-28 17:52:42,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2023-08-28 17:52:42,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2023-08-28 17:52:42,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-28 17:52:42,540 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-08-28 17:52:42,545 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-28 17:52:42,545 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-28 17:52:42,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 05:52:42 BasicIcfg [2023-08-28 17:52:42,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-28 17:52:42,549 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-28 17:52:42,549 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-28 17:52:42,549 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-28 17:52:42,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:52:33" (3/4) ... [2023-08-28 17:52:42,552 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-28 17:52:42,556 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2023-08-28 17:52:42,556 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2023-08-28 17:52:42,559 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-08-28 17:52:42,560 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-28 17:52:42,560 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-28 17:52:42,560 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-28 17:52:42,595 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-28 17:52:42,596 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-28 17:52:42,596 INFO L158 Benchmark]: Toolchain (without parser) took 10083.20ms. Allocated memory was 90.2MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 66.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 271.5MB. Max. memory is 16.1GB. [2023-08-28 17:52:42,596 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 73.4MB. Free memory was 51.8MB in the beginning and 51.7MB in the end (delta: 55.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 17:52:42,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.38ms. Allocated memory is still 90.2MB. Free memory was 66.5MB in the beginning and 68.4MB in the end (delta: -1.9MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2023-08-28 17:52:42,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.86ms. Allocated memory is still 90.2MB. Free memory was 68.4MB in the beginning and 65.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:52:42,597 INFO L158 Benchmark]: Boogie Preprocessor took 25.69ms. Allocated memory is still 90.2MB. Free memory was 65.7MB in the beginning and 63.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:52:42,597 INFO L158 Benchmark]: RCFGBuilder took 669.27ms. Allocated memory is still 90.2MB. Free memory was 63.9MB in the beginning and 60.1MB in the end (delta: 3.8MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2023-08-28 17:52:42,598 INFO L158 Benchmark]: TraceAbstraction took 8789.88ms. Allocated memory was 90.2MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 59.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 259.1MB. Max. memory is 16.1GB. [2023-08-28 17:52:42,598 INFO L158 Benchmark]: Witness Printer took 46.87ms. 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 4.2MB. Max. memory is 16.1GB. [2023-08-28 17:52:42,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 73.4MB. Free memory was 51.8MB in the beginning and 51.7MB in the end (delta: 55.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 455.38ms. Allocated memory is still 90.2MB. Free memory was 66.5MB in the beginning and 68.4MB in the end (delta: -1.9MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.86ms. Allocated memory is still 90.2MB. Free memory was 68.4MB in the beginning and 65.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.69ms. Allocated memory is still 90.2MB. Free memory was 65.7MB in the beginning and 63.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 669.27ms. Allocated memory is still 90.2MB. Free memory was 63.9MB in the beginning and 60.1MB in the end (delta: 3.8MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8789.88ms. Allocated memory was 90.2MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 59.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 259.1MB. Max. memory is 16.1GB. * Witness Printer took 46.87ms. 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 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 160 PlacesBefore, 82 PlacesAfterwards, 149 TransitionsBefore, 69 TransitionsAfterwards, 8762 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 90 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 111 TotalNumberOfCompositions, 27602 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12102, independent: 11728, independent conditional: 0, independent unconditional: 11728, dependent: 374, dependent conditional: 0, dependent unconditional: 374, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3937, independent: 3871, independent conditional: 0, independent unconditional: 3871, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12102, independent: 7857, independent conditional: 0, independent unconditional: 7857, dependent: 308, dependent conditional: 0, dependent unconditional: 308, unknown: 3937, unknown conditional: 0, unknown unconditional: 3937] , Statistics on independence cache: Total cache size (in pairs): 688, Positive cache size: 645, Positive conditional cache size: 0, Positive unconditional cache size: 645, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 734]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 749]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 751]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: 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, 207 locations, 50 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: 8.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 206 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 183 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 701 IncrementalHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 3 mSDtfsCounter, 701 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=265occurred in iteration=6, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-28 17:52:42,627 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