./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.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/goblint-regression/06-symbeq_11-equ_nr.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 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:08:18,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:08:18,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:08:18,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:08:18,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:08:19,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:08:19,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:08:19,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:08:19,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:08:19,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:08:19,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:08:19,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:08:19,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:08:19,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:08:19,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:08:19,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:08:19,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:08:19,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:08:19,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:08:19,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:08:19,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:08:19,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:08:19,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:08:19,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:08:19,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:08:19,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:08:19,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:08:19,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:08:19,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:08:19,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:08:19,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:08:19,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:08:19,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:08:19,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:08:19,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:08:19,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:08:19,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:08:19,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:08:19,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:08:19,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:08:19,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:08:19,037 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:08:19,062 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:08:19,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:08:19,063 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:08:19,063 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:08:19,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:08:19,064 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:08:19,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:08:19,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:08:19,065 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:08:19,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:08:19,065 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:08:19,066 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:08:19,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:08:19,066 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:08:19,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:08:19,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:08:19,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:08:19,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:08:19,067 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:08:19,067 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:08:19,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:08:19,067 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:08:19,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:08:19,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:08:19,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:08:19,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:08:19,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:08:19,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:08:19,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:08:19,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:08:19,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:08:19,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:08:19,068 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:08:19,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:08:19,069 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:08:19,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:08:19,069 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:08:19,069 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:08:19,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:08:19,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:08:19,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:08:19,336 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:08:19,336 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:08:19,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i [2023-08-29 02:08:20,349 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:08:20,523 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:08:20,525 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i [2023-08-29 02:08:20,541 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7250573d8/5687f1a2e214435397ce296722115872/FLAG73b4ef38e [2023-08-29 02:08:20,550 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7250573d8/5687f1a2e214435397ce296722115872 [2023-08-29 02:08:20,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:08:20,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:08:20,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:08:20,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:08:20,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:08:20,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:08:20" (1/1) ... [2023-08-29 02:08:20,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bdde1ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:20, skipping insertion in model container [2023-08-29 02:08:20,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:08:20" (1/1) ... [2023-08-29 02:08:20,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:08:20,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:08:20,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:08:20,858 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:08:20,880 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:08:20,918 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:08:20,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:20 WrapperNode [2023-08-29 02:08:20,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:08:20,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:08:20,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:08:20,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:08:20,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:20" (1/1) ... [2023-08-29 02:08:20,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:20" (1/1) ... [2023-08-29 02:08:20,951 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 72 [2023-08-29 02:08:20,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:08:20,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:08:20,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:08:20,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:08:20,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:20" (1/1) ... [2023-08-29 02:08:20,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:20" (1/1) ... [2023-08-29 02:08:20,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:20" (1/1) ... [2023-08-29 02:08:20,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:20" (1/1) ... [2023-08-29 02:08:20,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:20" (1/1) ... [2023-08-29 02:08:20,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:20" (1/1) ... [2023-08-29 02:08:20,966 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:20" (1/1) ... [2023-08-29 02:08:20,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:20" (1/1) ... [2023-08-29 02:08:20,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:08:20,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:08:20,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:08:20,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:08:20,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:20" (1/1) ... [2023-08-29 02:08:20,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:08:20,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:08:20,994 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 02:08:20,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 02:08:21,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:08:21,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:08:21,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:08:21,024 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:08:21,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:08:21,024 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:08:21,027 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:08:21,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 02:08:21,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:08:21,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:08:21,029 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 02:08:21,134 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:08:21,136 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:08:21,319 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:08:21,325 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:08:21,327 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 02:08:21,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:08:21 BoogieIcfgContainer [2023-08-29 02:08:21,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:08:21,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:08:21,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:08:21,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:08:21,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:08:20" (1/3) ... [2023-08-29 02:08:21,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dea106f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:08:21, skipping insertion in model container [2023-08-29 02:08:21,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:20" (2/3) ... [2023-08-29 02:08:21,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dea106f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:08:21, skipping insertion in model container [2023-08-29 02:08:21,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:08:21" (3/3) ... [2023-08-29 02:08:21,334 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2023-08-29 02:08:21,339 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:08:21,346 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:08:21,346 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-29 02:08:21,347 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:08:21,407 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:08:21,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 89 transitions, 183 flow [2023-08-29 02:08:21,490 INFO L130 PetriNetUnfolder]: 1/90 cut-off events. [2023-08-29 02:08:21,491 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:08:21,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 90 events. 1/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-08-29 02:08:21,494 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 89 transitions, 183 flow [2023-08-29 02:08:21,498 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 86 transitions, 175 flow [2023-08-29 02:08:21,500 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:08:21,507 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 86 transitions, 175 flow [2023-08-29 02:08:21,509 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 86 transitions, 175 flow [2023-08-29 02:08:21,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 86 transitions, 175 flow [2023-08-29 02:08:21,529 INFO L130 PetriNetUnfolder]: 1/86 cut-off events. [2023-08-29 02:08:21,529 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:08:21,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 86 events. 1/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2023-08-29 02:08:21,530 INFO L119 LiptonReduction]: Number of co-enabled transitions 570 [2023-08-29 02:08:25,116 INFO L134 LiptonReduction]: Checked pairs total: 2736 [2023-08-29 02:08:25,116 INFO L136 LiptonReduction]: Total number of compositions: 72 [2023-08-29 02:08:25,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:08:25,129 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;@76f73e23, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:08:25,129 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-29 02:08:25,138 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-08-29 02:08:25,138 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:08:25,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:25,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:25,139 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:25,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:25,143 INFO L85 PathProgramCache]: Analyzing trace with hash -32859920, now seen corresponding path program 1 times [2023-08-29 02:08:25,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:25,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586265607] [2023-08-29 02:08:25,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:25,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:25,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:25,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:25,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586265607] [2023-08-29 02:08:25,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586265607] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:25,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:25,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:08:25,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491859410] [2023-08-29 02:08:25,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:25,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:08:25,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:25,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:08:25,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:08:25,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 161 [2023-08-29 02:08:25,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:25,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:25,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 161 [2023-08-29 02:08:25,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:25,944 INFO L130 PetriNetUnfolder]: 72/186 cut-off events. [2023-08-29 02:08:25,944 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:08:25,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 186 events. 72/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 743 event pairs, 19 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 348. Up to 117 conditions per place. [2023-08-29 02:08:25,946 INFO L137 encePairwiseOnDemand]: 150/161 looper letters, 20 selfloop transitions, 22 changer transitions 4/49 dead transitions. [2023-08-29 02:08:25,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 49 transitions, 193 flow [2023-08-29 02:08:25,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:08:25,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:08:25,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2023-08-29 02:08:25,956 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144927536231884 [2023-08-29 02:08:25,957 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 497 transitions. [2023-08-29 02:08:25,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 497 transitions. [2023-08-29 02:08:25,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:25,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 497 transitions. [2023-08-29 02:08:25,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:25,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:25,967 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:25,968 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 497 transitions. [2023-08-29 02:08:25,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 49 transitions, 193 flow [2023-08-29 02:08:25,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 49 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:08:25,971 INFO L231 Difference]: Finished difference. Result has 33 places, 41 transitions, 192 flow [2023-08-29 02:08:25,972 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=33, PETRI_TRANSITIONS=41} [2023-08-29 02:08:25,974 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 9 predicate places. [2023-08-29 02:08:25,974 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 41 transitions, 192 flow [2023-08-29 02:08:25,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:25,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:25,975 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:25,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:08:25,975 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:25,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:25,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1414066238, now seen corresponding path program 1 times [2023-08-29 02:08:25,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:25,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981567231] [2023-08-29 02:08:25,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:25,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:26,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:26,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:26,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981567231] [2023-08-29 02:08:26,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981567231] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:26,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:26,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:08:26,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642029443] [2023-08-29 02:08:26,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:26,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:08:26,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:26,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:08:26,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:08:26,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 161 [2023-08-29 02:08:26,191 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 41 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:26,191 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:26,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 161 [2023-08-29 02:08:26,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:26,289 INFO L130 PetriNetUnfolder]: 113/268 cut-off events. [2023-08-29 02:08:26,289 INFO L131 PetriNetUnfolder]: For 102/108 co-relation queries the response was YES. [2023-08-29 02:08:26,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 268 events. 113/268 cut-off events. For 102/108 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1138 event pairs, 14 based on Foata normal form. 2/258 useless extension candidates. Maximal degree in co-relation 782. Up to 166 conditions per place. [2023-08-29 02:08:26,291 INFO L137 encePairwiseOnDemand]: 150/161 looper letters, 40 selfloop transitions, 29 changer transitions 11/84 dead transitions. [2023-08-29 02:08:26,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 84 transitions, 532 flow [2023-08-29 02:08:26,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:08:26,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:08:26,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 489 transitions. [2023-08-29 02:08:26,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5062111801242236 [2023-08-29 02:08:26,294 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 489 transitions. [2023-08-29 02:08:26,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 489 transitions. [2023-08-29 02:08:26,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:26,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 489 transitions. [2023-08-29 02:08:26,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:26,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:26,298 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:26,298 INFO L175 Difference]: Start difference. First operand has 33 places, 41 transitions, 192 flow. Second operand 6 states and 489 transitions. [2023-08-29 02:08:26,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 84 transitions, 532 flow [2023-08-29 02:08:26,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 84 transitions, 532 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:08:26,301 INFO L231 Difference]: Finished difference. Result has 43 places, 65 transitions, 446 flow [2023-08-29 02:08:26,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=43, PETRI_TRANSITIONS=65} [2023-08-29 02:08:26,302 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 19 predicate places. [2023-08-29 02:08:26,302 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 65 transitions, 446 flow [2023-08-29 02:08:26,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:26,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:26,302 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:26,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:08:26,303 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:26,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:26,303 INFO L85 PathProgramCache]: Analyzing trace with hash -785837523, now seen corresponding path program 1 times [2023-08-29 02:08:26,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:26,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538647093] [2023-08-29 02:08:26,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:26,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:26,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:26,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:26,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538647093] [2023-08-29 02:08:26,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538647093] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:26,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:26,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:08:26,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288501928] [2023-08-29 02:08:26,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:26,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:08:26,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:26,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:08:26,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:08:27,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-29 02:08:27,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 65 transitions, 446 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:27,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:27,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-29 02:08:27,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:27,291 INFO L130 PetriNetUnfolder]: 148/371 cut-off events. [2023-08-29 02:08:27,292 INFO L131 PetriNetUnfolder]: For 424/426 co-relation queries the response was YES. [2023-08-29 02:08:27,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1476 conditions, 371 events. 148/371 cut-off events. For 424/426 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1864 event pairs, 8 based on Foata normal form. 10/381 useless extension candidates. Maximal degree in co-relation 1458. Up to 136 conditions per place. [2023-08-29 02:08:27,295 INFO L137 encePairwiseOnDemand]: 150/161 looper letters, 84 selfloop transitions, 34 changer transitions 13/135 dead transitions. [2023-08-29 02:08:27,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 135 transitions, 1186 flow [2023-08-29 02:08:27,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:08:27,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:08:27,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 697 transitions. [2023-08-29 02:08:27,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4329192546583851 [2023-08-29 02:08:27,297 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 697 transitions. [2023-08-29 02:08:27,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 697 transitions. [2023-08-29 02:08:27,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:27,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 697 transitions. [2023-08-29 02:08:27,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 69.7) internal successors, (697), 10 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:27,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:27,302 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:27,302 INFO L175 Difference]: Start difference. First operand has 43 places, 65 transitions, 446 flow. Second operand 10 states and 697 transitions. [2023-08-29 02:08:27,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 135 transitions, 1186 flow [2023-08-29 02:08:27,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 135 transitions, 1150 flow, removed 18 selfloop flow, removed 0 redundant places. [2023-08-29 02:08:27,309 INFO L231 Difference]: Finished difference. Result has 58 places, 87 transitions, 722 flow [2023-08-29 02:08:27,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=722, PETRI_PLACES=58, PETRI_TRANSITIONS=87} [2023-08-29 02:08:27,310 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 34 predicate places. [2023-08-29 02:08:27,310 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 87 transitions, 722 flow [2023-08-29 02:08:27,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:27,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:27,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:27,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:08:27,311 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:27,311 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:27,311 INFO L85 PathProgramCache]: Analyzing trace with hash 324390159, now seen corresponding path program 2 times [2023-08-29 02:08:27,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:27,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544341154] [2023-08-29 02:08:27,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:27,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:27,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:27,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:27,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544341154] [2023-08-29 02:08:27,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544341154] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:27,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:27,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:08:27,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186332154] [2023-08-29 02:08:27,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:27,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:08:27,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:27,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:08:27,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:08:28,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-29 02:08:28,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 87 transitions, 722 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:28,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:28,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-29 02:08:28,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:28,325 INFO L130 PetriNetUnfolder]: 155/386 cut-off events. [2023-08-29 02:08:28,325 INFO L131 PetriNetUnfolder]: For 988/991 co-relation queries the response was YES. [2023-08-29 02:08:28,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1861 conditions, 386 events. 155/386 cut-off events. For 988/991 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1955 event pairs, 15 based on Foata normal form. 6/391 useless extension candidates. Maximal degree in co-relation 1835. Up to 128 conditions per place. [2023-08-29 02:08:28,327 INFO L137 encePairwiseOnDemand]: 146/161 looper letters, 58 selfloop transitions, 61 changer transitions 35/158 dead transitions. [2023-08-29 02:08:28,328 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 158 transitions, 1572 flow [2023-08-29 02:08:28,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 02:08:28,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 02:08:28,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 776 transitions. [2023-08-29 02:08:28,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43817052512704685 [2023-08-29 02:08:28,333 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 776 transitions. [2023-08-29 02:08:28,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 776 transitions. [2023-08-29 02:08:28,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:28,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 776 transitions. [2023-08-29 02:08:28,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 70.54545454545455) internal successors, (776), 11 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:28,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:28,337 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:28,337 INFO L175 Difference]: Start difference. First operand has 58 places, 87 transitions, 722 flow. Second operand 11 states and 776 transitions. [2023-08-29 02:08:28,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 158 transitions, 1572 flow [2023-08-29 02:08:28,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 158 transitions, 1571 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:08:28,343 INFO L231 Difference]: Finished difference. Result has 72 places, 96 transitions, 1012 flow [2023-08-29 02:08:28,343 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1012, PETRI_PLACES=72, PETRI_TRANSITIONS=96} [2023-08-29 02:08:28,344 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 48 predicate places. [2023-08-29 02:08:28,344 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 96 transitions, 1012 flow [2023-08-29 02:08:28,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:28,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:28,345 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:28,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 02:08:28,345 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:28,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:28,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1753622701, now seen corresponding path program 1 times [2023-08-29 02:08:28,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:28,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205035205] [2023-08-29 02:08:28,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:28,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:28,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:28,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:28,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205035205] [2023-08-29 02:08:28,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205035205] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:28,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:28,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:08:28,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277416589] [2023-08-29 02:08:28,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:28,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:08:28,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:28,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:08:28,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:08:28,953 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-29 02:08:28,954 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 96 transitions, 1012 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:28,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:28,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-29 02:08:28,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:29,199 INFO L130 PetriNetUnfolder]: 210/525 cut-off events. [2023-08-29 02:08:29,200 INFO L131 PetriNetUnfolder]: For 2348/2360 co-relation queries the response was YES. [2023-08-29 02:08:29,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3067 conditions, 525 events. 210/525 cut-off events. For 2348/2360 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3003 event pairs, 9 based on Foata normal form. 10/534 useless extension candidates. Maximal degree in co-relation 3035. Up to 182 conditions per place. [2023-08-29 02:08:29,203 INFO L137 encePairwiseOnDemand]: 146/161 looper letters, 126 selfloop transitions, 40 changer transitions 45/216 dead transitions. [2023-08-29 02:08:29,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 216 transitions, 2673 flow [2023-08-29 02:08:29,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 02:08:29,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 02:08:29,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 781 transitions. [2023-08-29 02:08:29,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4409937888198758 [2023-08-29 02:08:29,205 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 781 transitions. [2023-08-29 02:08:29,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 781 transitions. [2023-08-29 02:08:29,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:29,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 781 transitions. [2023-08-29 02:08:29,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 71.0) internal successors, (781), 11 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:29,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:29,209 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:29,209 INFO L175 Difference]: Start difference. First operand has 72 places, 96 transitions, 1012 flow. Second operand 11 states and 781 transitions. [2023-08-29 02:08:29,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 216 transitions, 2673 flow [2023-08-29 02:08:29,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 216 transitions, 2624 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-29 02:08:29,221 INFO L231 Difference]: Finished difference. Result has 82 places, 118 transitions, 1377 flow [2023-08-29 02:08:29,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=989, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1377, PETRI_PLACES=82, PETRI_TRANSITIONS=118} [2023-08-29 02:08:29,222 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 58 predicate places. [2023-08-29 02:08:29,222 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 118 transitions, 1377 flow [2023-08-29 02:08:29,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:29,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:29,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:29,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:08:29,223 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:29,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:29,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2051401235, now seen corresponding path program 2 times [2023-08-29 02:08:29,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:29,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21683640] [2023-08-29 02:08:29,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:29,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:29,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:29,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:29,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21683640] [2023-08-29 02:08:29,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21683640] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:29,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:29,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:08:29,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046937011] [2023-08-29 02:08:29,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:29,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:08:29,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:29,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:08:29,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:08:29,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-29 02:08:29,711 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 118 transitions, 1377 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:29,711 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:29,711 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-29 02:08:29,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:29,876 INFO L130 PetriNetUnfolder]: 156/425 cut-off events. [2023-08-29 02:08:29,876 INFO L131 PetriNetUnfolder]: For 2628/2639 co-relation queries the response was YES. [2023-08-29 02:08:29,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2797 conditions, 425 events. 156/425 cut-off events. For 2628/2639 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2383 event pairs, 6 based on Foata normal form. 14/439 useless extension candidates. Maximal degree in co-relation 2759. Up to 156 conditions per place. [2023-08-29 02:08:29,879 INFO L137 encePairwiseOnDemand]: 151/161 looper letters, 128 selfloop transitions, 38 changer transitions 14/185 dead transitions. [2023-08-29 02:08:29,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 185 transitions, 2550 flow [2023-08-29 02:08:29,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:08:29,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:08:29,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 698 transitions. [2023-08-29 02:08:29,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4335403726708075 [2023-08-29 02:08:29,893 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 698 transitions. [2023-08-29 02:08:29,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 698 transitions. [2023-08-29 02:08:29,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:29,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 698 transitions. [2023-08-29 02:08:29,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 69.8) internal successors, (698), 10 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:29,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:29,897 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:29,897 INFO L175 Difference]: Start difference. First operand has 82 places, 118 transitions, 1377 flow. Second operand 10 states and 698 transitions. [2023-08-29 02:08:29,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 185 transitions, 2550 flow [2023-08-29 02:08:29,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 185 transitions, 2524 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 02:08:29,912 INFO L231 Difference]: Finished difference. Result has 93 places, 129 transitions, 1630 flow [2023-08-29 02:08:29,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1357, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1630, PETRI_PLACES=93, PETRI_TRANSITIONS=129} [2023-08-29 02:08:29,913 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 69 predicate places. [2023-08-29 02:08:29,913 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 129 transitions, 1630 flow [2023-08-29 02:08:29,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:29,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:29,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:29,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:08:29,914 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:29,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:29,914 INFO L85 PathProgramCache]: Analyzing trace with hash 371757849, now seen corresponding path program 3 times [2023-08-29 02:08:29,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:29,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694263267] [2023-08-29 02:08:29,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:29,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:30,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:30,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:30,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694263267] [2023-08-29 02:08:30,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694263267] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:30,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:30,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:08:30,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652384400] [2023-08-29 02:08:30,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:30,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:08:30,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:30,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:08:30,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:08:30,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-29 02:08:30,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 129 transitions, 1630 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:30,464 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:30,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-29 02:08:30,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:30,655 INFO L130 PetriNetUnfolder]: 187/536 cut-off events. [2023-08-29 02:08:30,655 INFO L131 PetriNetUnfolder]: For 4638/4645 co-relation queries the response was YES. [2023-08-29 02:08:30,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3864 conditions, 536 events. 187/536 cut-off events. For 4638/4645 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3391 event pairs, 16 based on Foata normal form. 11/547 useless extension candidates. Maximal degree in co-relation 3820. Up to 173 conditions per place. [2023-08-29 02:08:30,659 INFO L137 encePairwiseOnDemand]: 146/161 looper letters, 65 selfloop transitions, 50 changer transitions 80/201 dead transitions. [2023-08-29 02:08:30,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 201 transitions, 2984 flow [2023-08-29 02:08:30,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 02:08:30,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 02:08:30,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 777 transitions. [2023-08-29 02:08:30,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43873517786561267 [2023-08-29 02:08:30,662 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 777 transitions. [2023-08-29 02:08:30,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 777 transitions. [2023-08-29 02:08:30,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:30,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 777 transitions. [2023-08-29 02:08:30,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 70.63636363636364) internal successors, (777), 11 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:30,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:30,666 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:30,666 INFO L175 Difference]: Start difference. First operand has 93 places, 129 transitions, 1630 flow. Second operand 11 states and 777 transitions. [2023-08-29 02:08:30,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 201 transitions, 2984 flow [2023-08-29 02:08:30,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 201 transitions, 2825 flow, removed 52 selfloop flow, removed 5 redundant places. [2023-08-29 02:08:30,701 INFO L231 Difference]: Finished difference. Result has 102 places, 112 transitions, 1521 flow [2023-08-29 02:08:30,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1555, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1521, PETRI_PLACES=102, PETRI_TRANSITIONS=112} [2023-08-29 02:08:30,702 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 78 predicate places. [2023-08-29 02:08:30,702 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 112 transitions, 1521 flow [2023-08-29 02:08:30,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:30,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:30,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:30,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:08:30,703 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:30,703 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:30,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1604110343, now seen corresponding path program 3 times [2023-08-29 02:08:30,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:30,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531797954] [2023-08-29 02:08:30,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:30,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:31,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:31,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:31,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531797954] [2023-08-29 02:08:31,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531797954] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:31,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:31,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:08:31,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307320983] [2023-08-29 02:08:31,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:31,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:08:31,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:31,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:08:31,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:08:31,244 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-29 02:08:31,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 112 transitions, 1521 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:31,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:31,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-29 02:08:31,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:31,517 INFO L130 PetriNetUnfolder]: 114/342 cut-off events. [2023-08-29 02:08:31,517 INFO L131 PetriNetUnfolder]: For 3846/3852 co-relation queries the response was YES. [2023-08-29 02:08:31,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2634 conditions, 342 events. 114/342 cut-off events. For 3846/3852 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1883 event pairs, 10 based on Foata normal form. 14/356 useless extension candidates. Maximal degree in co-relation 2586. Up to 107 conditions per place. [2023-08-29 02:08:31,520 INFO L137 encePairwiseOnDemand]: 147/161 looper letters, 64 selfloop transitions, 34 changer transitions 63/167 dead transitions. [2023-08-29 02:08:31,520 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 167 transitions, 2680 flow [2023-08-29 02:08:31,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 02:08:31,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 02:08:31,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 770 transitions. [2023-08-29 02:08:31,522 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43478260869565216 [2023-08-29 02:08:31,522 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 770 transitions. [2023-08-29 02:08:31,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 770 transitions. [2023-08-29 02:08:31,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:31,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 770 transitions. [2023-08-29 02:08:31,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:31,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:31,526 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:31,526 INFO L175 Difference]: Start difference. First operand has 102 places, 112 transitions, 1521 flow. Second operand 11 states and 770 transitions. [2023-08-29 02:08:31,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 167 transitions, 2680 flow [2023-08-29 02:08:31,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 167 transitions, 2536 flow, removed 58 selfloop flow, removed 5 redundant places. [2023-08-29 02:08:31,559 INFO L231 Difference]: Finished difference. Result has 110 places, 89 transitions, 1233 flow [2023-08-29 02:08:31,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1414, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1233, PETRI_PLACES=110, PETRI_TRANSITIONS=89} [2023-08-29 02:08:31,560 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 86 predicate places. [2023-08-29 02:08:31,560 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 89 transitions, 1233 flow [2023-08-29 02:08:31,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:31,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:31,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:31,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 02:08:31,561 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:31,562 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:31,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1405280377, now seen corresponding path program 4 times [2023-08-29 02:08:31,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:31,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270782153] [2023-08-29 02:08:31,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:31,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:31,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:31,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:31,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270782153] [2023-08-29 02:08:31,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270782153] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:31,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:31,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:08:31,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215112937] [2023-08-29 02:08:31,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:31,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:08:31,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:31,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:08:31,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:08:32,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-29 02:08:32,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 89 transitions, 1233 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:32,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:32,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-29 02:08:32,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:32,459 INFO L130 PetriNetUnfolder]: 67/229 cut-off events. [2023-08-29 02:08:32,459 INFO L131 PetriNetUnfolder]: For 3059/3063 co-relation queries the response was YES. [2023-08-29 02:08:32,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1834 conditions, 229 events. 67/229 cut-off events. For 3059/3063 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1137 event pairs, 7 based on Foata normal form. 5/233 useless extension candidates. Maximal degree in co-relation 1783. Up to 61 conditions per place. [2023-08-29 02:08:32,461 INFO L137 encePairwiseOnDemand]: 147/161 looper letters, 47 selfloop transitions, 38 changer transitions 33/124 dead transitions. [2023-08-29 02:08:32,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 124 transitions, 2005 flow [2023-08-29 02:08:32,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 02:08:32,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 02:08:32,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 764 transitions. [2023-08-29 02:08:32,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4313946922642575 [2023-08-29 02:08:32,463 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 764 transitions. [2023-08-29 02:08:32,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 764 transitions. [2023-08-29 02:08:32,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:32,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 764 transitions. [2023-08-29 02:08:32,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 69.45454545454545) internal successors, (764), 11 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:32,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:32,467 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:32,467 INFO L175 Difference]: Start difference. First operand has 110 places, 89 transitions, 1233 flow. Second operand 11 states and 764 transitions. [2023-08-29 02:08:32,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 124 transitions, 2005 flow [2023-08-29 02:08:32,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 124 transitions, 1777 flow, removed 41 selfloop flow, removed 17 redundant places. [2023-08-29 02:08:32,478 INFO L231 Difference]: Finished difference. Result has 102 places, 79 transitions, 1050 flow [2023-08-29 02:08:32,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1068, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1050, PETRI_PLACES=102, PETRI_TRANSITIONS=79} [2023-08-29 02:08:32,478 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 78 predicate places. [2023-08-29 02:08:32,478 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 79 transitions, 1050 flow [2023-08-29 02:08:32,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:32,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:32,479 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:32,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 02:08:32,479 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:32,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:32,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1373690143, now seen corresponding path program 4 times [2023-08-29 02:08:32,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:32,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773796918] [2023-08-29 02:08:32,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:32,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:32,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:32,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:32,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773796918] [2023-08-29 02:08:32,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773796918] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:32,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:32,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:08:32,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495336964] [2023-08-29 02:08:32,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:32,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:08:32,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:32,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:08:32,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:08:33,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-29 02:08:33,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 79 transitions, 1050 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:33,011 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:33,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-29 02:08:33,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:33,114 INFO L130 PetriNetUnfolder]: 73/229 cut-off events. [2023-08-29 02:08:33,114 INFO L131 PetriNetUnfolder]: For 2401/2411 co-relation queries the response was YES. [2023-08-29 02:08:33,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1731 conditions, 229 events. 73/229 cut-off events. For 2401/2411 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1103 event pairs, 9 based on Foata normal form. 11/239 useless extension candidates. Maximal degree in co-relation 1686. Up to 67 conditions per place. [2023-08-29 02:08:33,116 INFO L137 encePairwiseOnDemand]: 150/161 looper letters, 72 selfloop transitions, 32 changer transitions 16/125 dead transitions. [2023-08-29 02:08:33,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 125 transitions, 1929 flow [2023-08-29 02:08:33,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:08:33,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:08:33,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 691 transitions. [2023-08-29 02:08:33,118 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4291925465838509 [2023-08-29 02:08:33,118 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 691 transitions. [2023-08-29 02:08:33,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 691 transitions. [2023-08-29 02:08:33,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:33,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 691 transitions. [2023-08-29 02:08:33,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 69.1) internal successors, (691), 10 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:33,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:33,121 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:33,122 INFO L175 Difference]: Start difference. First operand has 102 places, 79 transitions, 1050 flow. Second operand 10 states and 691 transitions. [2023-08-29 02:08:33,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 125 transitions, 1929 flow [2023-08-29 02:08:33,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 125 transitions, 1809 flow, removed 10 selfloop flow, removed 11 redundant places. [2023-08-29 02:08:33,131 INFO L231 Difference]: Finished difference. Result has 101 places, 88 transitions, 1231 flow [2023-08-29 02:08:33,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1231, PETRI_PLACES=101, PETRI_TRANSITIONS=88} [2023-08-29 02:08:33,131 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 77 predicate places. [2023-08-29 02:08:33,132 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 88 transitions, 1231 flow [2023-08-29 02:08:33,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:33,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:33,132 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:33,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 02:08:33,132 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:33,133 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:33,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1336261357, now seen corresponding path program 5 times [2023-08-29 02:08:33,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:33,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731418963] [2023-08-29 02:08:33,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:33,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:33,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:33,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:33,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731418963] [2023-08-29 02:08:33,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731418963] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:33,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:33,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:08:33,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810914728] [2023-08-29 02:08:33,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:33,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:08:33,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:33,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:08:33,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:08:33,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-29 02:08:33,576 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 88 transitions, 1231 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:33,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:33,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-29 02:08:33,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:33,757 INFO L130 PetriNetUnfolder]: 52/187 cut-off events. [2023-08-29 02:08:33,758 INFO L131 PetriNetUnfolder]: For 2163/2170 co-relation queries the response was YES. [2023-08-29 02:08:33,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1483 conditions, 187 events. 52/187 cut-off events. For 2163/2170 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 906 event pairs, 0 based on Foata normal form. 11/198 useless extension candidates. Maximal degree in co-relation 1437. Up to 58 conditions per place. [2023-08-29 02:08:33,759 INFO L137 encePairwiseOnDemand]: 149/161 looper letters, 43 selfloop transitions, 19 changer transitions 35/101 dead transitions. [2023-08-29 02:08:33,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 101 transitions, 1591 flow [2023-08-29 02:08:33,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:08:33,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:08:33,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 688 transitions. [2023-08-29 02:08:33,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42732919254658386 [2023-08-29 02:08:33,761 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 688 transitions. [2023-08-29 02:08:33,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 688 transitions. [2023-08-29 02:08:33,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:33,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 688 transitions. [2023-08-29 02:08:33,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 68.8) internal successors, (688), 10 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:33,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:33,765 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:33,765 INFO L175 Difference]: Start difference. First operand has 101 places, 88 transitions, 1231 flow. Second operand 10 states and 688 transitions. [2023-08-29 02:08:33,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 101 transitions, 1591 flow [2023-08-29 02:08:33,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 101 transitions, 1500 flow, removed 19 selfloop flow, removed 7 redundant places. [2023-08-29 02:08:33,774 INFO L231 Difference]: Finished difference. Result has 102 places, 60 transitions, 819 flow [2023-08-29 02:08:33,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=819, PETRI_PLACES=102, PETRI_TRANSITIONS=60} [2023-08-29 02:08:33,774 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 78 predicate places. [2023-08-29 02:08:33,774 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 60 transitions, 819 flow [2023-08-29 02:08:33,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:33,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:33,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:33,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 02:08:33,775 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:33,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:33,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1867861869, now seen corresponding path program 5 times [2023-08-29 02:08:33,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:33,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463881254] [2023-08-29 02:08:33,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:33,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:34,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:34,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:34,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463881254] [2023-08-29 02:08:34,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463881254] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:34,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:34,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:08:34,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259520418] [2023-08-29 02:08:34,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:34,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:08:34,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:34,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:08:34,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:08:34,340 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-29 02:08:34,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 60 transitions, 819 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:34,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:34,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-29 02:08:34,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:34,425 INFO L130 PetriNetUnfolder]: 37/134 cut-off events. [2023-08-29 02:08:34,426 INFO L131 PetriNetUnfolder]: For 1698/1701 co-relation queries the response was YES. [2023-08-29 02:08:34,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1097 conditions, 134 events. 37/134 cut-off events. For 1698/1701 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 560 event pairs, 0 based on Foata normal form. 13/147 useless extension candidates. Maximal degree in co-relation 1061. Up to 47 conditions per place. [2023-08-29 02:08:34,426 INFO L137 encePairwiseOnDemand]: 151/161 looper letters, 0 selfloop transitions, 0 changer transitions 86/86 dead transitions. [2023-08-29 02:08:34,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 86 transitions, 1363 flow [2023-08-29 02:08:34,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:08:34,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:08:34,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 679 transitions. [2023-08-29 02:08:34,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4217391304347826 [2023-08-29 02:08:34,429 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 679 transitions. [2023-08-29 02:08:34,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 679 transitions. [2023-08-29 02:08:34,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:34,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 679 transitions. [2023-08-29 02:08:34,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 67.9) internal successors, (679), 10 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:34,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:34,432 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:34,433 INFO L175 Difference]: Start difference. First operand has 102 places, 60 transitions, 819 flow. Second operand 10 states and 679 transitions. [2023-08-29 02:08:34,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 86 transitions, 1363 flow [2023-08-29 02:08:34,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 86 transitions, 1002 flow, removed 30 selfloop flow, removed 34 redundant places. [2023-08-29 02:08:34,438 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2023-08-29 02:08:34,438 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2023-08-29 02:08:34,439 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 42 predicate places. [2023-08-29 02:08:34,439 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2023-08-29 02:08:34,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:34,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-08-29 02:08:34,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-29 02:08:34,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-08-29 02:08:34,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-08-29 02:08:34,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 02:08:34,443 INFO L445 BasicCegarLoop]: Path program histogram: [5, 5, 1, 1] [2023-08-29 02:08:34,447 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 02:08:34,447 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 02:08:34,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 02:08:34 BasicIcfg [2023-08-29 02:08:34,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 02:08:34,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 02:08:34,450 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 02:08:34,450 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 02:08:34,450 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:08:21" (3/4) ... [2023-08-29 02:08:34,452 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 02:08:34,455 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 02:08:34,458 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-29 02:08:34,459 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 02:08:34,459 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 02:08:34,483 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 02:08:34,484 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 02:08:34,484 INFO L158 Benchmark]: Toolchain (without parser) took 13932.07ms. Allocated memory was 75.5MB in the beginning and 302.0MB in the end (delta: 226.5MB). Free memory was 43.4MB in the beginning and 213.3MB in the end (delta: -169.9MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2023-08-29 02:08:34,484 INFO L158 Benchmark]: CDTParser took 0.77ms. Allocated memory is still 75.5MB. Free memory is still 52.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:08:34,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.58ms. Allocated memory is still 75.5MB. Free memory was 43.2MB in the beginning and 39.0MB in the end (delta: 4.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-29 02:08:34,485 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.86ms. Allocated memory is still 75.5MB. Free memory was 39.0MB in the beginning and 36.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:08:34,485 INFO L158 Benchmark]: Boogie Preprocessor took 16.63ms. Allocated memory is still 75.5MB. Free memory was 36.7MB in the beginning and 34.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:08:34,485 INFO L158 Benchmark]: RCFGBuilder took 359.53ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 34.8MB in the beginning and 59.2MB in the end (delta: -24.3MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-08-29 02:08:34,485 INFO L158 Benchmark]: TraceAbstraction took 13119.59ms. Allocated memory was 92.3MB in the beginning and 302.0MB in the end (delta: 209.7MB). Free memory was 58.3MB in the beginning and 216.5MB in the end (delta: -158.2MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2023-08-29 02:08:34,485 INFO L158 Benchmark]: Witness Printer took 33.98ms. Allocated memory is still 302.0MB. Free memory was 216.5MB in the beginning and 213.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:08:34,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77ms. Allocated memory is still 75.5MB. Free memory is still 52.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.58ms. Allocated memory is still 75.5MB. Free memory was 43.2MB in the beginning and 39.0MB in the end (delta: 4.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.86ms. Allocated memory is still 75.5MB. Free memory was 39.0MB in the beginning and 36.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.63ms. Allocated memory is still 75.5MB. Free memory was 36.7MB in the beginning and 34.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 359.53ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 34.8MB in the beginning and 59.2MB in the end (delta: -24.3MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * TraceAbstraction took 13119.59ms. Allocated memory was 92.3MB in the beginning and 302.0MB in the end (delta: 209.7MB). Free memory was 58.3MB in the beginning and 216.5MB in the end (delta: -158.2MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. * Witness Printer took 33.98ms. Allocated memory is still 302.0MB. Free memory was 216.5MB in the beginning and 213.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 89 PlacesBefore, 24 PlacesAfterwards, 86 TransitionsBefore, 20 TransitionsAfterwards, 570 CoEnabledTransitionPairs, 7 FixpointIterations, 51 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 2736 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 871, independent: 625, independent conditional: 0, independent unconditional: 625, dependent: 246, dependent conditional: 0, dependent unconditional: 246, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 278, independent: 254, independent conditional: 0, independent unconditional: 254, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 871, independent: 371, independent conditional: 0, independent unconditional: 371, dependent: 222, dependent conditional: 0, dependent unconditional: 222, unknown: 278, unknown conditional: 0, unknown unconditional: 278] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1022]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 996]: 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 3 procedures, 105 locations, 4 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: 13.0s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2136 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1692 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 156 mSDsCounter, 432 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4879 IncrementalHoareTripleChecker+Invalid, 5311 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 432 mSolverCounterUnsat, 33 mSDtfsCounter, 4879 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1630occurred in iteration=6, InterpolantAutomatonStates: 117, 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, 4.4s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 3305 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 02:08:34,509 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