./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.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 a5ee9b9286f55973fff2cea9c449f3602c5be2a48fed2e7e6cce6beebc18d9bc --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 21:57:18,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:57:18,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:57:18,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:57:18,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:57:18,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:57:18,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:57:18,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:57:18,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:57:18,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:57:18,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:57:18,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:57:18,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:57:18,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:57:18,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:57:18,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:57:18,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:57:18,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:57:18,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:57:18,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:57:18,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:57:18,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:57:18,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:57:18,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:57:18,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:57:18,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:57:18,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:57:18,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:57:18,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:57:18,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:57:18,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:57:18,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:57:18,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:57:18,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:57:18,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:57:18,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:57:18,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:57:18,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:57:18,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:57:18,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:57:18,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:57:18,897 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:57:18,922 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:57:18,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:57:18,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:57:18,923 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:57:18,924 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:57:18,924 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:57:18,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:57:18,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:57:18,924 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:57:18,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:57:18,925 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:57:18,925 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:57:18,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:57:18,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:57:18,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:57:18,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:57:18,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:57:18,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:57:18,926 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:57:18,926 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:57:18,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:57:18,927 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:57:18,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:57:18,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:57:18,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:57:18,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:57:18,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:57:18,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:57:18,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:57:18,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:57:18,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:57:18,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:57:18,928 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:57:18,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:57:18,929 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:57:18,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:57:18,929 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:57:18,929 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5ee9b9286f55973fff2cea9c449f3602c5be2a48fed2e7e6cce6beebc18d9bc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:57:19,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:57:19,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:57:19,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:57:19,186 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:57:19,186 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:57:19,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2023-08-31 21:57:20,107 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:57:20,330 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:57:20,330 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2023-08-31 21:57:20,350 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cb4a819e/12e7a67fdb384706984e145c9aecc6c9/FLAG6947ebdbb [2023-08-31 21:57:20,358 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cb4a819e/12e7a67fdb384706984e145c9aecc6c9 [2023-08-31 21:57:20,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:57:20,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:57:20,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:57:20,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:57:20,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:57:20,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:57:20" (1/1) ... [2023-08-31 21:57:20,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7934be22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:20, skipping insertion in model container [2023-08-31 21:57:20,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:57:20" (1/1) ... [2023-08-31 21:57:20,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:57:20,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:57:20,594 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30440,30453] [2023-08-31 21:57:20,602 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30895,30908] [2023-08-31 21:57:20,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:57:20,625 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:57:20,670 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30440,30453] [2023-08-31 21:57:20,676 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30895,30908] [2023-08-31 21:57:20,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:57:20,709 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:57:20,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:20 WrapperNode [2023-08-31 21:57:20,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:57:20,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:57:20,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:57:20,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:57:20,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:20" (1/1) ... [2023-08-31 21:57:20,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:20" (1/1) ... [2023-08-31 21:57:20,767 INFO L138 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 237 [2023-08-31 21:57:20,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:57:20,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:57:20,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:57:20,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:57:20,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:20" (1/1) ... [2023-08-31 21:57:20,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:20" (1/1) ... [2023-08-31 21:57:20,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:20" (1/1) ... [2023-08-31 21:57:20,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:20" (1/1) ... [2023-08-31 21:57:20,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:20" (1/1) ... [2023-08-31 21:57:20,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:20" (1/1) ... [2023-08-31 21:57:20,810 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:20" (1/1) ... [2023-08-31 21:57:20,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:20" (1/1) ... [2023-08-31 21:57:20,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:57:20,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:57:20,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:57:20,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:57:20,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:20" (1/1) ... [2023-08-31 21:57:20,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:57:20,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:57:20,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 21:57:20,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 21:57:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:57:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-08-31 21:57:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-08-31 21:57:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-08-31 21:57:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-08-31 21:57:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:57:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 21:57:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:57:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:57:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:57:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-31 21:57:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:57:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:57:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:57:20,872 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 21:57:21,035 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:57:21,037 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:57:21,391 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:57:21,405 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:57:21,405 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-31 21:57:21,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:57:21 BoogieIcfgContainer [2023-08-31 21:57:21,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:57:21,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:57:21,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:57:21,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:57:21,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:57:20" (1/3) ... [2023-08-31 21:57:21,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1292c813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:57:21, skipping insertion in model container [2023-08-31 21:57:21,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:20" (2/3) ... [2023-08-31 21:57:21,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1292c813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:57:21, skipping insertion in model container [2023-08-31 21:57:21,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:57:21" (3/3) ... [2023-08-31 21:57:21,413 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_bad.i [2023-08-31 21:57:21,418 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:57:21,424 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:57:21,424 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2023-08-31 21:57:21,424 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:57:21,535 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 21:57:21,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 268 places, 273 transitions, 562 flow [2023-08-31 21:57:21,655 INFO L130 PetriNetUnfolder]: 12/271 cut-off events. [2023-08-31 21:57:21,655 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:57:21,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 271 events. 12/271 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 680 event pairs, 0 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 186. Up to 2 conditions per place. [2023-08-31 21:57:21,668 INFO L82 GeneralOperation]: Start removeDead. Operand has 268 places, 273 transitions, 562 flow [2023-08-31 21:57:21,676 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 257 places, 262 transitions, 533 flow [2023-08-31 21:57:21,678 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:57:21,685 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 257 places, 262 transitions, 533 flow [2023-08-31 21:57:21,687 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 257 places, 262 transitions, 533 flow [2023-08-31 21:57:21,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 262 transitions, 533 flow [2023-08-31 21:57:21,723 INFO L130 PetriNetUnfolder]: 12/262 cut-off events. [2023-08-31 21:57:21,723 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 21:57:21,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 262 events. 12/262 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 631 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 186. Up to 2 conditions per place. [2023-08-31 21:57:21,731 INFO L119 LiptonReduction]: Number of co-enabled transitions 19388 [2023-08-31 21:57:26,342 INFO L134 LiptonReduction]: Checked pairs total: 110534 [2023-08-31 21:57:26,343 INFO L136 LiptonReduction]: Total number of compositions: 210 [2023-08-31 21:57:26,359 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:57:26,375 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;@7f90a303, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:57:26,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-08-31 21:57:26,377 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:57:26,377 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:57:26,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:26,378 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:57:26,378 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:57:26,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:26,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1007, now seen corresponding path program 1 times [2023-08-31 21:57:26,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:26,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659592941] [2023-08-31 21:57:26,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:26,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:26,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:26,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:26,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659592941] [2023-08-31 21:57:26,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659592941] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:26,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:26,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:57:26,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008567594] [2023-08-31 21:57:26,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:26,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:57:26,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:26,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:57:26,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:57:26,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 483 [2023-08-31 21:57:26,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 113 transitions, 235 flow. Second operand has 2 states, 2 states have (on average 263.5) internal successors, (527), 2 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:26,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:26,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 483 [2023-08-31 21:57:26,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:26,775 INFO L130 PetriNetUnfolder]: 1179/2824 cut-off events. [2023-08-31 21:57:26,776 INFO L131 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2023-08-31 21:57:26,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4723 conditions, 2824 events. 1179/2824 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 20008 event pairs, 885 based on Foata normal form. 28/2387 useless extension candidates. Maximal degree in co-relation 4487. Up to 1843 conditions per place. [2023-08-31 21:57:26,791 INFO L137 encePairwiseOnDemand]: 472/483 looper letters, 46 selfloop transitions, 0 changer transitions 0/101 dead transitions. [2023-08-31 21:57:26,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 101 transitions, 303 flow [2023-08-31 21:57:26,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:57:26,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:57:26,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 583 transitions. [2023-08-31 21:57:26,806 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6035196687370601 [2023-08-31 21:57:26,807 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 583 transitions. [2023-08-31 21:57:26,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 583 transitions. [2023-08-31 21:57:26,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:26,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 583 transitions. [2023-08-31 21:57:26,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 291.5) internal successors, (583), 2 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:26,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:26,819 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:26,821 INFO L175 Difference]: Start difference. First operand has 111 places, 113 transitions, 235 flow. Second operand 2 states and 583 transitions. [2023-08-31 21:57:26,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 101 transitions, 303 flow [2023-08-31 21:57:26,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 101 transitions, 298 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 21:57:26,827 INFO L231 Difference]: Finished difference. Result has 98 places, 101 transitions, 206 flow [2023-08-31 21:57:26,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=206, PETRI_PLACES=98, PETRI_TRANSITIONS=101} [2023-08-31 21:57:26,831 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, -13 predicate places. [2023-08-31 21:57:26,831 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 101 transitions, 206 flow [2023-08-31 21:57:26,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 263.5) internal successors, (527), 2 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:26,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:26,834 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 21:57:26,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:57:26,835 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:57:26,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:26,836 INFO L85 PathProgramCache]: Analyzing trace with hash -385917861, now seen corresponding path program 1 times [2023-08-31 21:57:26,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:26,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089013966] [2023-08-31 21:57:26,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:26,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:26,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:26,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:26,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089013966] [2023-08-31 21:57:26,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089013966] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:26,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:26,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:57:26,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227348438] [2023-08-31 21:57:26,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:26,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:26,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:26,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:26,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:26,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 483 [2023-08-31 21:57:26,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 101 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 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) [2023-08-31 21:57:26,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:26,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 483 [2023-08-31 21:57:26,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:27,344 INFO L130 PetriNetUnfolder]: 2435/5420 cut-off events. [2023-08-31 21:57:27,344 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2023-08-31 21:57:27,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9249 conditions, 5420 events. 2435/5420 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 40561 event pairs, 671 based on Foata normal form. 0/4572 useless extension candidates. Maximal degree in co-relation 9246. Up to 2080 conditions per place. [2023-08-31 21:57:27,364 INFO L137 encePairwiseOnDemand]: 478/483 looper letters, 89 selfloop transitions, 4 changer transitions 0/144 dead transitions. [2023-08-31 21:57:27,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 144 transitions, 481 flow [2023-08-31 21:57:27,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:27,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:27,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 865 transitions. [2023-08-31 21:57:27,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5969634230503795 [2023-08-31 21:57:27,367 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 865 transitions. [2023-08-31 21:57:27,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 865 transitions. [2023-08-31 21:57:27,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:27,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 865 transitions. [2023-08-31 21:57:27,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 288.3333333333333) internal successors, (865), 3 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:27,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:27,372 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:27,372 INFO L175 Difference]: Start difference. First operand has 98 places, 101 transitions, 206 flow. Second operand 3 states and 865 transitions. [2023-08-31 21:57:27,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 144 transitions, 481 flow [2023-08-31 21:57:27,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 144 transitions, 481 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:57:27,374 INFO L231 Difference]: Finished difference. Result has 102 places, 105 transitions, 240 flow [2023-08-31 21:57:27,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=102, PETRI_TRANSITIONS=105} [2023-08-31 21:57:27,375 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, -9 predicate places. [2023-08-31 21:57:27,375 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 105 transitions, 240 flow [2023-08-31 21:57:27,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 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) [2023-08-31 21:57:27,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:27,376 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:27,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:57:27,376 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:57:27,377 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:27,377 INFO L85 PathProgramCache]: Analyzing trace with hash -235543872, now seen corresponding path program 1 times [2023-08-31 21:57:27,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:27,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383024009] [2023-08-31 21:57:27,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:27,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:27,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:27,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:27,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383024009] [2023-08-31 21:57:27,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383024009] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:27,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:27,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:57:27,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269185704] [2023-08-31 21:57:27,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:27,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:27,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:27,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:27,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:27,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 483 [2023-08-31 21:57:27,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 105 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:27,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:27,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 483 [2023-08-31 21:57:27,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:27,986 INFO L130 PetriNetUnfolder]: 3696/7821 cut-off events. [2023-08-31 21:57:27,986 INFO L131 PetriNetUnfolder]: For 315/315 co-relation queries the response was YES. [2023-08-31 21:57:27,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14055 conditions, 7821 events. 3696/7821 cut-off events. For 315/315 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 60520 event pairs, 1077 based on Foata normal form. 0/6601 useless extension candidates. Maximal degree in co-relation 14050. Up to 3043 conditions per place. [2023-08-31 21:57:28,022 INFO L137 encePairwiseOnDemand]: 478/483 looper letters, 87 selfloop transitions, 4 changer transitions 0/146 dead transitions. [2023-08-31 21:57:28,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 146 transitions, 511 flow [2023-08-31 21:57:28,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:28,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:28,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 861 transitions. [2023-08-31 21:57:28,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5942028985507246 [2023-08-31 21:57:28,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 861 transitions. [2023-08-31 21:57:28,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 861 transitions. [2023-08-31 21:57:28,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:28,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 861 transitions. [2023-08-31 21:57:28,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:28,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:28,029 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:28,029 INFO L175 Difference]: Start difference. First operand has 102 places, 105 transitions, 240 flow. Second operand 3 states and 861 transitions. [2023-08-31 21:57:28,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 146 transitions, 511 flow [2023-08-31 21:57:28,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 146 transitions, 501 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:57:28,033 INFO L231 Difference]: Finished difference. Result has 104 places, 109 transitions, 266 flow [2023-08-31 21:57:28,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=104, PETRI_TRANSITIONS=109} [2023-08-31 21:57:28,034 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, -7 predicate places. [2023-08-31 21:57:28,034 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 109 transitions, 266 flow [2023-08-31 21:57:28,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:28,035 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:28,035 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:28,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:57:28,035 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:57:28,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:28,036 INFO L85 PathProgramCache]: Analyzing trace with hash 749379259, now seen corresponding path program 1 times [2023-08-31 21:57:28,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:28,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643671429] [2023-08-31 21:57:28,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:28,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:28,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:28,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:28,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643671429] [2023-08-31 21:57:28,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643671429] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:28,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:28,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:57:28,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279707366] [2023-08-31 21:57:28,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:28,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:28,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:28,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:28,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:28,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 483 [2023-08-31 21:57:28,118 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 109 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:28,118 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:28,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 483 [2023-08-31 21:57:28,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:28,712 INFO L130 PetriNetUnfolder]: 4513/9726 cut-off events. [2023-08-31 21:57:28,713 INFO L131 PetriNetUnfolder]: For 445/445 co-relation queries the response was YES. [2023-08-31 21:57:28,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17776 conditions, 9726 events. 4513/9726 cut-off events. For 445/445 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 75874 event pairs, 3323 based on Foata normal form. 0/8466 useless extension candidates. Maximal degree in co-relation 17770. Up to 6864 conditions per place. [2023-08-31 21:57:28,750 INFO L137 encePairwiseOnDemand]: 473/483 looper letters, 75 selfloop transitions, 5 changer transitions 0/129 dead transitions. [2023-08-31 21:57:28,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 129 transitions, 474 flow [2023-08-31 21:57:28,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:28,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:28,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 810 transitions. [2023-08-31 21:57:28,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5590062111801242 [2023-08-31 21:57:28,752 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 810 transitions. [2023-08-31 21:57:28,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 810 transitions. [2023-08-31 21:57:28,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:28,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 810 transitions. [2023-08-31 21:57:28,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.0) internal successors, (810), 3 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:28,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:28,757 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:28,757 INFO L175 Difference]: Start difference. First operand has 104 places, 109 transitions, 266 flow. Second operand 3 states and 810 transitions. [2023-08-31 21:57:28,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 129 transitions, 474 flow [2023-08-31 21:57:28,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 129 transitions, 464 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:57:28,760 INFO L231 Difference]: Finished difference. Result has 102 places, 108 transitions, 284 flow [2023-08-31 21:57:28,760 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=102, PETRI_TRANSITIONS=108} [2023-08-31 21:57:28,761 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, -9 predicate places. [2023-08-31 21:57:28,761 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 108 transitions, 284 flow [2023-08-31 21:57:28,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:28,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:28,762 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:28,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:57:28,762 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:57:28,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:28,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1509944257, now seen corresponding path program 1 times [2023-08-31 21:57:28,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:28,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742306121] [2023-08-31 21:57:28,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:28,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:29,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:29,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:29,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742306121] [2023-08-31 21:57:29,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742306121] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:29,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:29,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:57:29,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31604132] [2023-08-31 21:57:29,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:29,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:57:29,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:29,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:57:29,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:57:29,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 483 [2023-08-31 21:57:29,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 108 transitions, 284 flow. Second operand has 6 states, 6 states have (on average 254.66666666666666) internal successors, (1528), 6 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:29,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:29,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 483 [2023-08-31 21:57:29,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:32,116 INFO L130 PetriNetUnfolder]: 27642/49621 cut-off events. [2023-08-31 21:57:32,117 INFO L131 PetriNetUnfolder]: For 6621/6621 co-relation queries the response was YES. [2023-08-31 21:57:32,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98042 conditions, 49621 events. 27642/49621 cut-off events. For 6621/6621 co-relation queries the response was YES. Maximal size of possible extension queue 938. Compared 433714 event pairs, 8433 based on Foata normal form. 0/42339 useless extension candidates. Maximal degree in co-relation 98035. Up to 22973 conditions per place. [2023-08-31 21:57:32,373 INFO L137 encePairwiseOnDemand]: 476/483 looper letters, 235 selfloop transitions, 9 changer transitions 0/294 dead transitions. [2023-08-31 21:57:32,373 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 294 transitions, 1257 flow [2023-08-31 21:57:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:57:32,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:57:32,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1738 transitions. [2023-08-31 21:57:32,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5997239475500346 [2023-08-31 21:57:32,377 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1738 transitions. [2023-08-31 21:57:32,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1738 transitions. [2023-08-31 21:57:32,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:32,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1738 transitions. [2023-08-31 21:57:32,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 289.6666666666667) internal successors, (1738), 6 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:32,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:32,386 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:32,386 INFO L175 Difference]: Start difference. First operand has 102 places, 108 transitions, 284 flow. Second operand 6 states and 1738 transitions. [2023-08-31 21:57:32,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 294 transitions, 1257 flow [2023-08-31 21:57:32,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 294 transitions, 1223 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:57:32,410 INFO L231 Difference]: Finished difference. Result has 110 places, 116 transitions, 338 flow [2023-08-31 21:57:32,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=110, PETRI_TRANSITIONS=116} [2023-08-31 21:57:32,412 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, -1 predicate places. [2023-08-31 21:57:32,412 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 116 transitions, 338 flow [2023-08-31 21:57:32,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 254.66666666666666) internal successors, (1528), 6 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:32,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:32,413 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:32,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:57:32,414 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:57:32,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:32,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1401016899, now seen corresponding path program 1 times [2023-08-31 21:57:32,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:32,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494218665] [2023-08-31 21:57:32,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:32,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:32,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:32,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:32,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494218665] [2023-08-31 21:57:32,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494218665] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:32,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:32,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:57:32,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662468774] [2023-08-31 21:57:32,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:32,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:32,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:32,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:32,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:32,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 483 [2023-08-31 21:57:32,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 116 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:32,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:32,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 483 [2023-08-31 21:57:32,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:34,079 INFO L130 PetriNetUnfolder]: 12985/28920 cut-off events. [2023-08-31 21:57:34,079 INFO L131 PetriNetUnfolder]: For 2400/2539 co-relation queries the response was YES. [2023-08-31 21:57:34,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56004 conditions, 28920 events. 12985/28920 cut-off events. For 2400/2539 co-relation queries the response was YES. Maximal size of possible extension queue 647. Compared 277827 event pairs, 2944 based on Foata normal form. 0/24872 useless extension candidates. Maximal degree in co-relation 55993. Up to 19948 conditions per place. [2023-08-31 21:57:34,231 INFO L137 encePairwiseOnDemand]: 476/483 looper letters, 85 selfloop transitions, 2 changer transitions 0/142 dead transitions. [2023-08-31 21:57:34,231 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 142 transitions, 575 flow [2023-08-31 21:57:34,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:34,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:34,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 827 transitions. [2023-08-31 21:57:34,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5707384403036577 [2023-08-31 21:57:34,233 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 827 transitions. [2023-08-31 21:57:34,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 827 transitions. [2023-08-31 21:57:34,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:34,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 827 transitions. [2023-08-31 21:57:34,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.6666666666667) internal successors, (827), 3 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:34,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:34,237 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:34,237 INFO L175 Difference]: Start difference. First operand has 110 places, 116 transitions, 338 flow. Second operand 3 states and 827 transitions. [2023-08-31 21:57:34,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 142 transitions, 575 flow [2023-08-31 21:57:34,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 142 transitions, 575 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:57:34,244 INFO L231 Difference]: Finished difference. Result has 108 places, 113 transitions, 342 flow [2023-08-31 21:57:34,245 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=108, PETRI_TRANSITIONS=113} [2023-08-31 21:57:34,245 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, -3 predicate places. [2023-08-31 21:57:34,245 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 113 transitions, 342 flow [2023-08-31 21:57:34,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:34,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:34,246 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:34,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 21:57:34,246 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:57:34,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:34,247 INFO L85 PathProgramCache]: Analyzing trace with hash 806326866, now seen corresponding path program 1 times [2023-08-31 21:57:34,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:34,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616396077] [2023-08-31 21:57:34,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:34,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:34,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:34,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:34,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616396077] [2023-08-31 21:57:34,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616396077] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:34,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:34,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:57:34,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171351863] [2023-08-31 21:57:34,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:34,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:34,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:34,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:34,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:34,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 483 [2023-08-31 21:57:34,286 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 113 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 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) [2023-08-31 21:57:34,286 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:34,286 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 483 [2023-08-31 21:57:34,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:36,051 INFO L130 PetriNetUnfolder]: 12207/27211 cut-off events. [2023-08-31 21:57:36,051 INFO L131 PetriNetUnfolder]: For 2514/2589 co-relation queries the response was YES. [2023-08-31 21:57:36,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53686 conditions, 27211 events. 12207/27211 cut-off events. For 2514/2589 co-relation queries the response was YES. Maximal size of possible extension queue 644. Compared 263825 event pairs, 7505 based on Foata normal form. 0/23268 useless extension candidates. Maximal degree in co-relation 53674. Up to 18994 conditions per place. [2023-08-31 21:57:36,193 INFO L137 encePairwiseOnDemand]: 478/483 looper letters, 78 selfloop transitions, 5 changer transitions 0/138 dead transitions. [2023-08-31 21:57:36,193 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 138 transitions, 570 flow [2023-08-31 21:57:36,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:36,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:36,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 840 transitions. [2023-08-31 21:57:36,195 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5797101449275363 [2023-08-31 21:57:36,195 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 840 transitions. [2023-08-31 21:57:36,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 840 transitions. [2023-08-31 21:57:36,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:36,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 840 transitions. [2023-08-31 21:57:36,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:36,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:36,199 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:36,200 INFO L175 Difference]: Start difference. First operand has 108 places, 113 transitions, 342 flow. Second operand 3 states and 840 transitions. [2023-08-31 21:57:36,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 138 transitions, 570 flow [2023-08-31 21:57:36,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 138 transitions, 570 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:57:36,206 INFO L231 Difference]: Finished difference. Result has 112 places, 116 transitions, 378 flow [2023-08-31 21:57:36,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=112, PETRI_TRANSITIONS=116} [2023-08-31 21:57:36,207 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 1 predicate places. [2023-08-31 21:57:36,207 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 116 transitions, 378 flow [2023-08-31 21:57:36,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 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) [2023-08-31 21:57:36,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:36,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:36,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 21:57:36,208 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:57:36,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:36,208 INFO L85 PathProgramCache]: Analyzing trace with hash 286693003, now seen corresponding path program 1 times [2023-08-31 21:57:36,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:36,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488434130] [2023-08-31 21:57:36,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:36,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:36,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:36,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:36,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488434130] [2023-08-31 21:57:36,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488434130] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:36,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:36,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:57:36,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646554444] [2023-08-31 21:57:36,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:36,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:36,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:36,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:36,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:36,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 483 [2023-08-31 21:57:36,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 116 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:36,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:36,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 483 [2023-08-31 21:57:36,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:38,947 INFO L130 PetriNetUnfolder]: 18027/41809 cut-off events. [2023-08-31 21:57:38,947 INFO L131 PetriNetUnfolder]: For 6476/7083 co-relation queries the response was YES. [2023-08-31 21:57:39,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83817 conditions, 41809 events. 18027/41809 cut-off events. For 6476/7083 co-relation queries the response was YES. Maximal size of possible extension queue 1029. Compared 448271 event pairs, 8494 based on Foata normal form. 227/36571 useless extension candidates. Maximal degree in co-relation 83803. Up to 18950 conditions per place. [2023-08-31 21:57:39,137 INFO L137 encePairwiseOnDemand]: 479/483 looper letters, 97 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2023-08-31 21:57:39,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 162 transitions, 702 flow [2023-08-31 21:57:39,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:39,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:39,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 864 transitions. [2023-08-31 21:57:39,140 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5962732919254659 [2023-08-31 21:57:39,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 864 transitions. [2023-08-31 21:57:39,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 864 transitions. [2023-08-31 21:57:39,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:39,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 864 transitions. [2023-08-31 21:57:39,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:39,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:39,144 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:39,144 INFO L175 Difference]: Start difference. First operand has 112 places, 116 transitions, 378 flow. Second operand 3 states and 864 transitions. [2023-08-31 21:57:39,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 162 transitions, 702 flow [2023-08-31 21:57:39,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 162 transitions, 688 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-31 21:57:39,171 INFO L231 Difference]: Finished difference. Result has 113 places, 117 transitions, 380 flow [2023-08-31 21:57:39,171 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=380, PETRI_PLACES=113, PETRI_TRANSITIONS=117} [2023-08-31 21:57:39,172 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 2 predicate places. [2023-08-31 21:57:39,172 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 117 transitions, 380 flow [2023-08-31 21:57:39,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:39,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:39,173 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:39,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 21:57:39,173 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:57:39,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:39,173 INFO L85 PathProgramCache]: Analyzing trace with hash 286696517, now seen corresponding path program 1 times [2023-08-31 21:57:39,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:39,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654647896] [2023-08-31 21:57:39,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:39,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:39,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:39,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:39,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654647896] [2023-08-31 21:57:39,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654647896] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:39,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:39,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:57:39,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770743503] [2023-08-31 21:57:39,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:39,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:39,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:39,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:39,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:39,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 483 [2023-08-31 21:57:39,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 117 transitions, 380 flow. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:39,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:39,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 483 [2023-08-31 21:57:39,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:42,065 INFO L130 PetriNetUnfolder]: 18126/42226 cut-off events. [2023-08-31 21:57:42,065 INFO L131 PetriNetUnfolder]: For 7574/8033 co-relation queries the response was YES. [2023-08-31 21:57:42,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87509 conditions, 42226 events. 18126/42226 cut-off events. For 7574/8033 co-relation queries the response was YES. Maximal size of possible extension queue 1044. Compared 454173 event pairs, 11280 based on Foata normal form. 974/38795 useless extension candidates. Maximal degree in co-relation 87494. Up to 28275 conditions per place. [2023-08-31 21:57:42,414 INFO L137 encePairwiseOnDemand]: 480/483 looper letters, 81 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2023-08-31 21:57:42,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 146 transitions, 625 flow [2023-08-31 21:57:42,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:42,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:42,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 834 transitions. [2023-08-31 21:57:42,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5755693581780539 [2023-08-31 21:57:42,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 834 transitions. [2023-08-31 21:57:42,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 834 transitions. [2023-08-31 21:57:42,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:42,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 834 transitions. [2023-08-31 21:57:42,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:42,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:42,420 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:42,420 INFO L175 Difference]: Start difference. First operand has 113 places, 117 transitions, 380 flow. Second operand 3 states and 834 transitions. [2023-08-31 21:57:42,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 146 transitions, 625 flow [2023-08-31 21:57:42,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 146 transitions, 623 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:57:42,431 INFO L231 Difference]: Finished difference. Result has 115 places, 118 transitions, 392 flow [2023-08-31 21:57:42,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=115, PETRI_TRANSITIONS=118} [2023-08-31 21:57:42,432 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 4 predicate places. [2023-08-31 21:57:42,432 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 118 transitions, 392 flow [2023-08-31 21:57:42,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:42,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:42,433 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:42,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 21:57:42,433 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:57:42,433 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:42,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1753490036, now seen corresponding path program 1 times [2023-08-31 21:57:42,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:42,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78874819] [2023-08-31 21:57:42,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:42,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:42,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:42,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:42,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78874819] [2023-08-31 21:57:42,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78874819] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:42,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:42,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:57:42,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440911082] [2023-08-31 21:57:42,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:42,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:42,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:42,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:42,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:42,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 483 [2023-08-31 21:57:42,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 118 transitions, 392 flow. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:42,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:42,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 483 [2023-08-31 21:57:42,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:45,472 INFO L130 PetriNetUnfolder]: 18894/44308 cut-off events. [2023-08-31 21:57:45,472 INFO L131 PetriNetUnfolder]: For 11882/12358 co-relation queries the response was YES. [2023-08-31 21:57:45,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94014 conditions, 44308 events. 18894/44308 cut-off events. For 11882/12358 co-relation queries the response was YES. Maximal size of possible extension queue 1054. Compared 478515 event pairs, 12151 based on Foata normal form. 170/40847 useless extension candidates. Maximal degree in co-relation 93998. Up to 30134 conditions per place. [2023-08-31 21:57:45,715 INFO L137 encePairwiseOnDemand]: 480/483 looper letters, 78 selfloop transitions, 2 changer transitions 0/143 dead transitions. [2023-08-31 21:57:45,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 143 transitions, 634 flow [2023-08-31 21:57:45,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:45,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:45,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2023-08-31 21:57:45,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5734989648033126 [2023-08-31 21:57:45,717 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2023-08-31 21:57:45,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2023-08-31 21:57:45,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:45,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2023-08-31 21:57:45,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:45,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:45,720 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:45,720 INFO L175 Difference]: Start difference. First operand has 115 places, 118 transitions, 392 flow. Second operand 3 states and 831 transitions. [2023-08-31 21:57:45,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 143 transitions, 634 flow [2023-08-31 21:57:45,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 143 transitions, 630 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:57:45,817 INFO L231 Difference]: Finished difference. Result has 117 places, 119 transitions, 402 flow [2023-08-31 21:57:45,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=117, PETRI_TRANSITIONS=119} [2023-08-31 21:57:45,817 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 6 predicate places. [2023-08-31 21:57:45,818 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 119 transitions, 402 flow [2023-08-31 21:57:45,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:45,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:45,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:45,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 21:57:45,818 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:57:45,818 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:45,819 INFO L85 PathProgramCache]: Analyzing trace with hash -467573221, now seen corresponding path program 1 times [2023-08-31 21:57:45,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:45,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130369634] [2023-08-31 21:57:45,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:45,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:45,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:45,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:45,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130369634] [2023-08-31 21:57:45,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130369634] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:45,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:45,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:57:45,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322195366] [2023-08-31 21:57:45,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:45,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:45,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:45,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:45,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:45,989 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 483 [2023-08-31 21:57:45,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 119 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 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) [2023-08-31 21:57:45,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:45,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 483 [2023-08-31 21:57:45,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:49,187 INFO L130 PetriNetUnfolder]: 20770/47120 cut-off events. [2023-08-31 21:57:49,187 INFO L131 PetriNetUnfolder]: For 13182/13675 co-relation queries the response was YES. [2023-08-31 21:57:49,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103662 conditions, 47120 events. 20770/47120 cut-off events. For 13182/13675 co-relation queries the response was YES. Maximal size of possible extension queue 1085. Compared 499028 event pairs, 13099 based on Foata normal form. 175/43932 useless extension candidates. Maximal degree in co-relation 103645. Up to 33397 conditions per place. [2023-08-31 21:57:49,455 INFO L137 encePairwiseOnDemand]: 478/483 looper letters, 79 selfloop transitions, 7 changer transitions 0/146 dead transitions. [2023-08-31 21:57:49,455 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 146 transitions, 662 flow [2023-08-31 21:57:49,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:49,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:49,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 837 transitions. [2023-08-31 21:57:49,457 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.577639751552795 [2023-08-31 21:57:49,457 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 837 transitions. [2023-08-31 21:57:49,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 837 transitions. [2023-08-31 21:57:49,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:49,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 837 transitions. [2023-08-31 21:57:49,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:49,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:49,461 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:49,461 INFO L175 Difference]: Start difference. First operand has 117 places, 119 transitions, 402 flow. Second operand 3 states and 837 transitions. [2023-08-31 21:57:49,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 146 transitions, 662 flow [2023-08-31 21:57:49,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 146 transitions, 660 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:57:49,749 INFO L231 Difference]: Finished difference. Result has 119 places, 124 transitions, 451 flow [2023-08-31 21:57:49,750 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=451, PETRI_PLACES=119, PETRI_TRANSITIONS=124} [2023-08-31 21:57:49,750 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 8 predicate places. [2023-08-31 21:57:49,750 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 124 transitions, 451 flow [2023-08-31 21:57:49,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 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) [2023-08-31 21:57:49,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:49,751 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:49,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 21:57:49,751 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:57:49,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:49,751 INFO L85 PathProgramCache]: Analyzing trace with hash 547278315, now seen corresponding path program 1 times [2023-08-31 21:57:49,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:49,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206102712] [2023-08-31 21:57:49,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:49,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:49,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:49,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:49,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206102712] [2023-08-31 21:57:49,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206102712] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:49,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:49,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:57:49,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221150527] [2023-08-31 21:57:49,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:49,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:49,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:49,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:49,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:49,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 483 [2023-08-31 21:57:49,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 124 transitions, 451 flow. Second operand has 3 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:49,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:49,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 483 [2023-08-31 21:57:49,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:55,345 INFO L130 PetriNetUnfolder]: 34716/75276 cut-off events. [2023-08-31 21:57:55,346 INFO L131 PetriNetUnfolder]: For 26939/28575 co-relation queries the response was YES. [2023-08-31 21:57:55,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173400 conditions, 75276 events. 34716/75276 cut-off events. For 26939/28575 co-relation queries the response was YES. Maximal size of possible extension queue 1507. Compared 816430 event pairs, 14115 based on Foata normal form. 421/70325 useless extension candidates. Maximal degree in co-relation 173382. Up to 34733 conditions per place. [2023-08-31 21:57:56,015 INFO L137 encePairwiseOnDemand]: 478/483 looper letters, 116 selfloop transitions, 8 changer transitions 0/182 dead transitions. [2023-08-31 21:57:56,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 182 transitions, 913 flow [2023-08-31 21:57:56,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:56,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:56,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 857 transitions. [2023-08-31 21:57:56,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5914423740510697 [2023-08-31 21:57:56,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 857 transitions. [2023-08-31 21:57:56,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 857 transitions. [2023-08-31 21:57:56,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:56,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 857 transitions. [2023-08-31 21:57:56,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 285.6666666666667) internal successors, (857), 3 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:56,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:56,021 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:57:56,021 INFO L175 Difference]: Start difference. First operand has 119 places, 124 transitions, 451 flow. Second operand 3 states and 857 transitions. [2023-08-31 21:57:56,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 182 transitions, 913 flow [2023-08-31 21:57:56,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 182 transitions, 901 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:57:56,221 INFO L231 Difference]: Finished difference. Result has 122 places, 131 transitions, 526 flow [2023-08-31 21:57:56,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=526, PETRI_PLACES=122, PETRI_TRANSITIONS=131} [2023-08-31 21:57:56,221 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 11 predicate places. [2023-08-31 21:57:56,221 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 131 transitions, 526 flow [2023-08-31 21:57:56,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:56,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:56,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:56,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 21:57:56,222 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:57:56,222 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:56,223 INFO L85 PathProgramCache]: Analyzing trace with hash -404926251, now seen corresponding path program 1 times [2023-08-31 21:57:56,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:56,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290332101] [2023-08-31 21:57:56,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:56,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:56,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:56,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:56,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290332101] [2023-08-31 21:57:56,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290332101] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:56,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:56,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:57:56,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155127014] [2023-08-31 21:57:56,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:56,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:56,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:56,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:56,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:56,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 483 [2023-08-31 21:57:56,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 131 transitions, 526 flow. Second operand has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:56,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:56,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 483 [2023-08-31 21:57:56,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:58:03,929 INFO L130 PetriNetUnfolder]: 45053/102072 cut-off events. [2023-08-31 21:58:03,929 INFO L131 PetriNetUnfolder]: For 41877/45127 co-relation queries the response was YES. [2023-08-31 21:58:04,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239397 conditions, 102072 events. 45053/102072 cut-off events. For 41877/45127 co-relation queries the response was YES. Maximal size of possible extension queue 2135. Compared 1205388 event pairs, 21448 based on Foata normal form. 872/96977 useless extension candidates. Maximal degree in co-relation 239378. Up to 52675 conditions per place. [2023-08-31 21:58:04,628 INFO L137 encePairwiseOnDemand]: 480/483 looper letters, 113 selfloop transitions, 2 changer transitions 0/185 dead transitions. [2023-08-31 21:58:04,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 185 transitions, 957 flow [2023-08-31 21:58:04,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:58:04,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:58:04,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 864 transitions. [2023-08-31 21:58:04,630 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5962732919254659 [2023-08-31 21:58:04,630 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 864 transitions. [2023-08-31 21:58:04,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 864 transitions. [2023-08-31 21:58:04,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:58:04,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 864 transitions. [2023-08-31 21:58:04,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:04,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:58:04,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:58:04,634 INFO L175 Difference]: Start difference. First operand has 122 places, 131 transitions, 526 flow. Second operand 3 states and 864 transitions. [2023-08-31 21:58:04,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 185 transitions, 957 flow [2023-08-31 21:58:05,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 185 transitions, 937 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:58:05,033 INFO L231 Difference]: Finished difference. Result has 123 places, 132 transitions, 522 flow [2023-08-31 21:58:05,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=522, PETRI_PLACES=123, PETRI_TRANSITIONS=132} [2023-08-31 21:58:05,033 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 12 predicate places. [2023-08-31 21:58:05,033 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 132 transitions, 522 flow [2023-08-31 21:58:05,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:05,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:58:05,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:58:05,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 21:58:05,034 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:58:05,034 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:58:05,034 INFO L85 PathProgramCache]: Analyzing trace with hash -147227535, now seen corresponding path program 1 times [2023-08-31 21:58:05,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:58:05,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455565518] [2023-08-31 21:58:05,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:58:05,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:58:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:58:05,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:58:05,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:58:05,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455565518] [2023-08-31 21:58:05,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455565518] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:58:05,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:58:05,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:58:05,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890857363] [2023-08-31 21:58:05,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:58:05,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:58:05,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:58:05,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:58:05,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:58:05,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 483 [2023-08-31 21:58:05,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 132 transitions, 522 flow. Second operand has 3 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:05,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:58:05,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 483 [2023-08-31 21:58:05,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:58:21,182 INFO L130 PetriNetUnfolder]: 119940/220546 cut-off events. [2023-08-31 21:58:21,183 INFO L131 PetriNetUnfolder]: For 163279/166959 co-relation queries the response was YES. [2023-08-31 21:58:22,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 579683 conditions, 220546 events. 119940/220546 cut-off events. For 163279/166959 co-relation queries the response was YES. Maximal size of possible extension queue 3447. Compared 2341338 event pairs, 71246 based on Foata normal form. 723/211025 useless extension candidates. Maximal degree in co-relation 579663. Up to 174385 conditions per place. [2023-08-31 21:58:22,901 INFO L137 encePairwiseOnDemand]: 475/483 looper letters, 100 selfloop transitions, 16 changer transitions 0/163 dead transitions. [2023-08-31 21:58:22,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 163 transitions, 870 flow [2023-08-31 21:58:22,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:58:22,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:58:22,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 817 transitions. [2023-08-31 21:58:22,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5638371290545203 [2023-08-31 21:58:22,903 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 817 transitions. [2023-08-31 21:58:22,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 817 transitions. [2023-08-31 21:58:22,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:58:22,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 817 transitions. [2023-08-31 21:58:22,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:22,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:58:22,906 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:58:22,906 INFO L175 Difference]: Start difference. First operand has 123 places, 132 transitions, 522 flow. Second operand 3 states and 817 transitions. [2023-08-31 21:58:22,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 163 transitions, 870 flow [2023-08-31 21:58:25,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 163 transitions, 868 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:58:25,360 INFO L231 Difference]: Finished difference. Result has 125 places, 138 transitions, 606 flow [2023-08-31 21:58:25,360 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=125, PETRI_TRANSITIONS=138} [2023-08-31 21:58:25,360 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 14 predicate places. [2023-08-31 21:58:25,360 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 138 transitions, 606 flow [2023-08-31 21:58:25,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:25,361 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:58:25,361 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:58:25,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 21:58:25,361 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:58:25,361 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:58:25,361 INFO L85 PathProgramCache]: Analyzing trace with hash 278061391, now seen corresponding path program 1 times [2023-08-31 21:58:25,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:58:25,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475880427] [2023-08-31 21:58:25,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:58:25,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:58:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:58:25,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:58:25,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:58:25,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475880427] [2023-08-31 21:58:25,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475880427] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:58:25,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:58:25,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:58:25,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270525881] [2023-08-31 21:58:25,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:58:25,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:58:25,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:58:25,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:58:25,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:58:25,408 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 483 [2023-08-31 21:58:25,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 138 transitions, 606 flow. Second operand has 3 states, 3 states have (on average 260.6666666666667) internal successors, (782), 3 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:25,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:58:25,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 483 [2023-08-31 21:58:25,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:58:34,660 INFO L130 PetriNetUnfolder]: 55567/119773 cut-off events. [2023-08-31 21:58:34,660 INFO L131 PetriNetUnfolder]: For 67450/81796 co-relation queries the response was YES. [2023-08-31 21:58:35,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299850 conditions, 119773 events. 55567/119773 cut-off events. For 67450/81796 co-relation queries the response was YES. Maximal size of possible extension queue 2455. Compared 1391952 event pairs, 28848 based on Foata normal form. 1572/114161 useless extension candidates. Maximal degree in co-relation 299829. Up to 83932 conditions per place. [2023-08-31 21:58:35,603 INFO L137 encePairwiseOnDemand]: 479/483 looper letters, 93 selfloop transitions, 6 changer transitions 0/169 dead transitions. [2023-08-31 21:58:35,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 169 transitions, 908 flow [2023-08-31 21:58:35,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:58:35,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:58:35,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 839 transitions. [2023-08-31 21:58:35,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5790200138026225 [2023-08-31 21:58:35,605 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 839 transitions. [2023-08-31 21:58:35,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 839 transitions. [2023-08-31 21:58:35,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:58:35,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 839 transitions. [2023-08-31 21:58:35,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:35,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:58:35,608 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:58:35,608 INFO L175 Difference]: Start difference. First operand has 125 places, 138 transitions, 606 flow. Second operand 3 states and 839 transitions. [2023-08-31 21:58:35,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 169 transitions, 908 flow [2023-08-31 21:58:36,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 169 transitions, 885 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-31 21:58:36,267 INFO L231 Difference]: Finished difference. Result has 127 places, 140 transitions, 616 flow [2023-08-31 21:58:36,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=616, PETRI_PLACES=127, PETRI_TRANSITIONS=140} [2023-08-31 21:58:36,268 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 16 predicate places. [2023-08-31 21:58:36,268 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 140 transitions, 616 flow [2023-08-31 21:58:36,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.6666666666667) internal successors, (782), 3 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:36,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:58:36,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:58:36,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 21:58:36,268 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:58:36,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:58:36,269 INFO L85 PathProgramCache]: Analyzing trace with hash -323288048, now seen corresponding path program 1 times [2023-08-31 21:58:36,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:58:36,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888728186] [2023-08-31 21:58:36,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:58:36,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:58:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:58:36,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:58:36,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:58:36,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888728186] [2023-08-31 21:58:36,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888728186] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:58:36,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:58:36,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:58:36,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267637710] [2023-08-31 21:58:36,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:58:36,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:58:36,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:58:36,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:58:36,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:58:36,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 483 [2023-08-31 21:58:36,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 140 transitions, 616 flow. Second operand has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:36,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:58:36,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 483 [2023-08-31 21:58:36,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:58:37,928 INFO L130 PetriNetUnfolder]: 8372/20474 cut-off events. [2023-08-31 21:58:37,928 INFO L131 PetriNetUnfolder]: For 10491/10926 co-relation queries the response was YES. [2023-08-31 21:58:37,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51148 conditions, 20474 events. 8372/20474 cut-off events. For 10491/10926 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 185695 event pairs, 1061 based on Foata normal form. 1613/21639 useless extension candidates. Maximal degree in co-relation 51126. Up to 11944 conditions per place. [2023-08-31 21:58:38,020 INFO L137 encePairwiseOnDemand]: 479/483 looper letters, 66 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2023-08-31 21:58:38,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 127 transitions, 669 flow [2023-08-31 21:58:38,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:58:38,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:58:38,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 832 transitions. [2023-08-31 21:58:38,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5741890959282263 [2023-08-31 21:58:38,022 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 832 transitions. [2023-08-31 21:58:38,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 832 transitions. [2023-08-31 21:58:38,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:58:38,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 832 transitions. [2023-08-31 21:58:38,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:38,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:58:38,025 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:58:38,025 INFO L175 Difference]: Start difference. First operand has 127 places, 140 transitions, 616 flow. Second operand 3 states and 832 transitions. [2023-08-31 21:58:38,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 127 transitions, 669 flow [2023-08-31 21:58:38,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 127 transitions, 625 flow, removed 11 selfloop flow, removed 9 redundant places. [2023-08-31 21:58:38,081 INFO L231 Difference]: Finished difference. Result has 113 places, 114 transitions, 448 flow [2023-08-31 21:58:38,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=448, PETRI_PLACES=113, PETRI_TRANSITIONS=114} [2023-08-31 21:58:38,082 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 2 predicate places. [2023-08-31 21:58:38,082 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 114 transitions, 448 flow [2023-08-31 21:58:38,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:38,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:58:38,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:58:38,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-31 21:58:38,082 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:58:38,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:58:38,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1647896808, now seen corresponding path program 1 times [2023-08-31 21:58:38,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:58:38,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156398228] [2023-08-31 21:58:38,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:58:38,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:58:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:58:38,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:58:38,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:58:38,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156398228] [2023-08-31 21:58:38,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156398228] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:58:38,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:58:38,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:58:38,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844492886] [2023-08-31 21:58:38,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:58:38,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 21:58:38,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:58:38,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 21:58:38,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-31 21:58:38,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 483 [2023-08-31 21:58:38,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 114 transitions, 448 flow. Second operand has 5 states, 5 states have (on average 244.4) internal successors, (1222), 5 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:38,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:58:38,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 483 [2023-08-31 21:58:38,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:58:40,913 INFO L130 PetriNetUnfolder]: 20809/39893 cut-off events. [2023-08-31 21:58:40,913 INFO L131 PetriNetUnfolder]: For 38272/38433 co-relation queries the response was YES. [2023-08-31 21:58:40,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110316 conditions, 39893 events. 20809/39893 cut-off events. For 38272/38433 co-relation queries the response was YES. Maximal size of possible extension queue 729. Compared 333928 event pairs, 13616 based on Foata normal form. 0/38527 useless extension candidates. Maximal degree in co-relation 110298. Up to 32445 conditions per place. [2023-08-31 21:58:41,079 INFO L137 encePairwiseOnDemand]: 479/483 looper letters, 80 selfloop transitions, 13 changer transitions 0/125 dead transitions. [2023-08-31 21:58:41,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 125 transitions, 684 flow [2023-08-31 21:58:41,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 21:58:41,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 21:58:41,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1031 transitions. [2023-08-31 21:58:41,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5336438923395446 [2023-08-31 21:58:41,081 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1031 transitions. [2023-08-31 21:58:41,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1031 transitions. [2023-08-31 21:58:41,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:58:41,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1031 transitions. [2023-08-31 21:58:41,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 257.75) internal successors, (1031), 4 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:41,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 483.0) internal successors, (2415), 5 states have internal predecessors, (2415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:41,085 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 483.0) internal successors, (2415), 5 states have internal predecessors, (2415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:41,085 INFO L175 Difference]: Start difference. First operand has 113 places, 114 transitions, 448 flow. Second operand 4 states and 1031 transitions. [2023-08-31 21:58:41,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 125 transitions, 684 flow [2023-08-31 21:58:41,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 125 transitions, 680 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:58:41,200 INFO L231 Difference]: Finished difference. Result has 114 places, 113 transitions, 466 flow [2023-08-31 21:58:41,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=466, PETRI_PLACES=114, PETRI_TRANSITIONS=113} [2023-08-31 21:58:41,201 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 3 predicate places. [2023-08-31 21:58:41,201 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 113 transitions, 466 flow [2023-08-31 21:58:41,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 244.4) internal successors, (1222), 5 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:41,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:58:41,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:58:41,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 21:58:41,202 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t2Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:58:41,202 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:58:41,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1262035401, now seen corresponding path program 1 times [2023-08-31 21:58:41,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:58:41,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135454519] [2023-08-31 21:58:41,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:58:41,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:58:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:58:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:58:41,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:58:41,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135454519] [2023-08-31 21:58:41,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135454519] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:58:41,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:58:41,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:58:41,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753108818] [2023-08-31 21:58:41,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:58:41,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:58:41,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:58:41,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:58:41,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:58:41,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 483 [2023-08-31 21:58:41,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 113 transitions, 466 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:41,239 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:58:41,239 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 483 [2023-08-31 21:58:41,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:58:42,495 INFO L130 PetriNetUnfolder]: 8041/19579 cut-off events. [2023-08-31 21:58:42,496 INFO L131 PetriNetUnfolder]: For 9407/9810 co-relation queries the response was YES. [2023-08-31 21:58:42,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46713 conditions, 19579 events. 8041/19579 cut-off events. For 9407/9810 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 176631 event pairs, 5156 based on Foata normal form. 4/18859 useless extension candidates. Maximal degree in co-relation 46694. Up to 14027 conditions per place. [2023-08-31 21:58:42,582 INFO L137 encePairwiseOnDemand]: 480/483 looper letters, 62 selfloop transitions, 3 changer transitions 0/119 dead transitions. [2023-08-31 21:58:42,583 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 119 transitions, 617 flow [2023-08-31 21:58:42,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:58:42,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:58:42,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 820 transitions. [2023-08-31 21:58:42,584 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5659075224292616 [2023-08-31 21:58:42,584 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 820 transitions. [2023-08-31 21:58:42,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 820 transitions. [2023-08-31 21:58:42,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:58:42,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 820 transitions. [2023-08-31 21:58:42,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:42,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:58:42,587 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:58:42,587 INFO L175 Difference]: Start difference. First operand has 114 places, 113 transitions, 466 flow. Second operand 3 states and 820 transitions. [2023-08-31 21:58:42,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 119 transitions, 617 flow [2023-08-31 21:58:42,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 119 transitions, 591 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 21:58:42,612 INFO L231 Difference]: Finished difference. Result has 112 places, 112 transitions, 444 flow [2023-08-31 21:58:42,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=112, PETRI_TRANSITIONS=112} [2023-08-31 21:58:42,612 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 1 predicate places. [2023-08-31 21:58:42,613 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 112 transitions, 444 flow [2023-08-31 21:58:42,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:42,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:58:42,613 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:58:42,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-31 21:58:42,613 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:58:42,614 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:58:42,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1222713005, now seen corresponding path program 1 times [2023-08-31 21:58:42,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:58:42,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795974866] [2023-08-31 21:58:42,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:58:42,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:58:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:58:42,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:58:42,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:58:42,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795974866] [2023-08-31 21:58:42,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795974866] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:58:42,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344737891] [2023-08-31 21:58:42,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:58:42,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:58:42,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:58:42,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:58:42,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-31 21:58:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:58:42,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-31 21:58:42,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:58:42,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:58:42,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 21:58:42,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:58:42,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344737891] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 21:58:42,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 21:58:42,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-08-31 21:58:42,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037160466] [2023-08-31 21:58:42,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 21:58:42,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-31 21:58:42,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:58:42,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-31 21:58:42,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-31 21:58:42,868 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 483 [2023-08-31 21:58:42,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 112 transitions, 444 flow. Second operand has 7 states, 7 states have (on average 261.7142857142857) internal successors, (1832), 7 states have internal predecessors, (1832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:42,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:58:42,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 483 [2023-08-31 21:58:42,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:58:45,672 INFO L130 PetriNetUnfolder]: 15402/39912 cut-off events. [2023-08-31 21:58:45,673 INFO L131 PetriNetUnfolder]: For 18206/19218 co-relation queries the response was YES. [2023-08-31 21:58:45,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92951 conditions, 39912 events. 15402/39912 cut-off events. For 18206/19218 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 417156 event pairs, 1685 based on Foata normal form. 2363/41128 useless extension candidates. Maximal degree in co-relation 92932. Up to 7113 conditions per place. [2023-08-31 21:58:45,852 INFO L137 encePairwiseOnDemand]: 479/483 looper letters, 217 selfloop transitions, 6 changer transitions 0/280 dead transitions. [2023-08-31 21:58:45,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 280 transitions, 1444 flow [2023-08-31 21:58:45,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:58:45,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:58:45,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1739 transitions. [2023-08-31 21:58:45,854 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6000690131124914 [2023-08-31 21:58:45,855 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1739 transitions. [2023-08-31 21:58:45,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1739 transitions. [2023-08-31 21:58:45,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:58:45,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1739 transitions. [2023-08-31 21:58:45,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 289.8333333333333) internal successors, (1739), 6 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:45,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:45,860 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:45,860 INFO L175 Difference]: Start difference. First operand has 112 places, 112 transitions, 444 flow. Second operand 6 states and 1739 transitions. [2023-08-31 21:58:45,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 280 transitions, 1444 flow [2023-08-31 21:58:45,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 280 transitions, 1430 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:58:45,927 INFO L231 Difference]: Finished difference. Result has 119 places, 115 transitions, 479 flow [2023-08-31 21:58:45,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=479, PETRI_PLACES=119, PETRI_TRANSITIONS=115} [2023-08-31 21:58:45,928 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 8 predicate places. [2023-08-31 21:58:45,928 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 115 transitions, 479 flow [2023-08-31 21:58:45,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 261.7142857142857) internal successors, (1832), 7 states have internal predecessors, (1832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:45,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:58:45,929 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:58:45,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-31 21:58:46,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:58:46,133 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:58:46,134 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:58:46,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1684121632, now seen corresponding path program 1 times [2023-08-31 21:58:46,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:58:46,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902664294] [2023-08-31 21:58:46,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:58:46,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:58:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:58:46,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:58:46,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:58:46,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902664294] [2023-08-31 21:58:46,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902664294] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:58:46,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:58:46,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 21:58:46,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789940206] [2023-08-31 21:58:46,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:58:46,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-31 21:58:46,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:58:46,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-31 21:58:46,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-31 21:58:46,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 483 [2023-08-31 21:58:46,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 115 transitions, 479 flow. Second operand has 8 states, 8 states have (on average 254.5) internal successors, (2036), 8 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:46,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:58:46,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 483 [2023-08-31 21:58:46,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:58:52,581 INFO L130 PetriNetUnfolder]: 44858/81080 cut-off events. [2023-08-31 21:58:52,581 INFO L131 PetriNetUnfolder]: For 116028/116666 co-relation queries the response was YES. [2023-08-31 21:58:52,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249283 conditions, 81080 events. 44858/81080 cut-off events. For 116028/116666 co-relation queries the response was YES. Maximal size of possible extension queue 1255. Compared 729104 event pairs, 9060 based on Foata normal form. 1953/81068 useless extension candidates. Maximal degree in co-relation 249261. Up to 25092 conditions per place. [2023-08-31 21:58:53,302 INFO L137 encePairwiseOnDemand]: 477/483 looper letters, 280 selfloop transitions, 12 changer transitions 0/325 dead transitions. [2023-08-31 21:58:53,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 325 transitions, 1919 flow [2023-08-31 21:58:53,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:58:53,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:58:53,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1977 transitions. [2023-08-31 21:58:53,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5847382431233363 [2023-08-31 21:58:53,306 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1977 transitions. [2023-08-31 21:58:53,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1977 transitions. [2023-08-31 21:58:53,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:58:53,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1977 transitions. [2023-08-31 21:58:53,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 282.42857142857144) internal successors, (1977), 7 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:53,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 483.0) internal successors, (3864), 8 states have internal predecessors, (3864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:53,333 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 483.0) internal successors, (3864), 8 states have internal predecessors, (3864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:53,334 INFO L175 Difference]: Start difference. First operand has 119 places, 115 transitions, 479 flow. Second operand 7 states and 1977 transitions. [2023-08-31 21:58:53,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 325 transitions, 1919 flow [2023-08-31 21:58:56,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 325 transitions, 1875 flow, removed 15 selfloop flow, removed 2 redundant places. [2023-08-31 21:58:56,984 INFO L231 Difference]: Finished difference. Result has 122 places, 114 transitions, 487 flow [2023-08-31 21:58:56,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=487, PETRI_PLACES=122, PETRI_TRANSITIONS=114} [2023-08-31 21:58:56,984 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 11 predicate places. [2023-08-31 21:58:56,984 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 114 transitions, 487 flow [2023-08-31 21:58:56,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 254.5) internal successors, (2036), 8 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:56,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:58:56,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:58:56,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-31 21:58:56,985 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:58:56,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:58:56,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1079285110, now seen corresponding path program 1 times [2023-08-31 21:58:56,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:58:56,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567828506] [2023-08-31 21:58:56,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:58:56,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:58:57,005 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-31 21:58:57,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453462676] [2023-08-31 21:58:57,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:58:57,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:58:57,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:58:57,006 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:58:57,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-31 21:58:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:58:57,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-31 21:58:57,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:58:57,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:58:57,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-31 21:58:57,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:58:57,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567828506] [2023-08-31 21:58:57,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-31 21:58:57,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453462676] [2023-08-31 21:58:57,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453462676] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:58:57,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:58:57,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:58:57,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206125646] [2023-08-31 21:58:57,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:58:57,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:58:57,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:58:57,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:58:57,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:58:57,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 483 [2023-08-31 21:58:57,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 114 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:57,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:58:57,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 483 [2023-08-31 21:58:57,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:58:59,772 INFO L130 PetriNetUnfolder]: 15960/39676 cut-off events. [2023-08-31 21:58:59,772 INFO L131 PetriNetUnfolder]: For 30563/31564 co-relation queries the response was YES. [2023-08-31 21:58:59,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101656 conditions, 39676 events. 15960/39676 cut-off events. For 30563/31564 co-relation queries the response was YES. Maximal size of possible extension queue 581. Compared 405182 event pairs, 10731 based on Foata normal form. 22/38373 useless extension candidates. Maximal degree in co-relation 101634. Up to 28099 conditions per place. [2023-08-31 21:59:00,036 INFO L137 encePairwiseOnDemand]: 480/483 looper letters, 65 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2023-08-31 21:59:00,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 120 transitions, 643 flow [2023-08-31 21:59:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:59:00,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:59:00,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 805 transitions. [2023-08-31 21:59:00,038 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2023-08-31 21:59:00,038 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 805 transitions. [2023-08-31 21:59:00,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 805 transitions. [2023-08-31 21:59:00,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:59:00,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 805 transitions. [2023-08-31 21:59:00,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:59:00,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:59:00,040 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 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) [2023-08-31 21:59:00,041 INFO L175 Difference]: Start difference. First operand has 122 places, 114 transitions, 487 flow. Second operand 3 states and 805 transitions. [2023-08-31 21:59:00,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 120 transitions, 643 flow [2023-08-31 21:59:00,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 120 transitions, 622 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:59:00,170 INFO L231 Difference]: Finished difference. Result has 118 places, 113 transitions, 468 flow [2023-08-31 21:59:00,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=468, PETRI_PLACES=118, PETRI_TRANSITIONS=113} [2023-08-31 21:59:00,171 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 7 predicate places. [2023-08-31 21:59:00,171 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 468 flow [2023-08-31 21:59:00,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:59:00,171 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:59:00,171 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:59:00,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-31 21:59:00,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-08-31 21:59:00,372 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-31 21:59:00,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:59:00,372 INFO L85 PathProgramCache]: Analyzing trace with hash -371356981, now seen corresponding path program 2 times [2023-08-31 21:59:00,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:59:00,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162939933] [2023-08-31 21:59:00,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:59:00,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:59:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:59:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:59:00,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:59:00,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162939933] [2023-08-31 21:59:00,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162939933] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:59:00,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147421068] [2023-08-31 21:59:00,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-31 21:59:00,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:59:00,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:59:00,440 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:59:00,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-31 21:59:00,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-31 21:59:00,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 21:59:00,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-31 21:59:00,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:59:00,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 21:59:00,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-31 21:59:00,643 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 21:59:00,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-31 21:59:00,671 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 21:59:00,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-31 21:59:00,687 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-08-31 21:59:00,687 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-31 21:59:00,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147421068] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:59:00,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-31 21:59:00,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2023-08-31 21:59:00,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683244733] [2023-08-31 21:59:00,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:59:00,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-31 21:59:00,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:59:00,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-31 21:59:00,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-31 21:59:00,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 483 [2023-08-31 21:59:00,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 113 transitions, 468 flow. Second operand has 7 states, 7 states have (on average 255.28571428571428) internal successors, (1787), 7 states have internal predecessors, (1787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:59:00,774 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:59:00,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 483 [2023-08-31 21:59:00,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:59:03,665 INFO L130 PetriNetUnfolder]: 16868/40323 cut-off events. [2023-08-31 21:59:03,666 INFO L131 PetriNetUnfolder]: For 31793/32894 co-relation queries the response was YES. [2023-08-31 21:59:03,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105056 conditions, 40323 events. 16868/40323 cut-off events. For 31793/32894 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 402994 event pairs, 10686 based on Foata normal form. 19/39288 useless extension candidates. Maximal degree in co-relation 105034. Up to 28575 conditions per place. [2023-08-31 21:59:03,911 INFO L137 encePairwiseOnDemand]: 477/483 looper letters, 0 selfloop transitions, 0 changer transitions 200/200 dead transitions. [2023-08-31 21:59:03,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 200 transitions, 1098 flow [2023-08-31 21:59:03,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:59:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:59:03,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1895 transitions. [2023-08-31 21:59:03,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5604850635906536 [2023-08-31 21:59:03,914 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1895 transitions. [2023-08-31 21:59:03,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1895 transitions. [2023-08-31 21:59:03,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:59:03,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1895 transitions. [2023-08-31 21:59:03,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 270.7142857142857) internal successors, (1895), 7 states have internal predecessors, (1895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:59:03,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 483.0) internal successors, (3864), 8 states have internal predecessors, (3864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:59:03,919 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 483.0) internal successors, (3864), 8 states have internal predecessors, (3864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:59:03,919 INFO L175 Difference]: Start difference. First operand has 118 places, 113 transitions, 468 flow. Second operand 7 states and 1895 transitions. [2023-08-31 21:59:03,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 200 transitions, 1098 flow [2023-08-31 21:59:04,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 200 transitions, 1094 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:59:04,081 INFO L231 Difference]: Finished difference. Result has 121 places, 0 transitions, 0 flow [2023-08-31 21:59:04,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=121, PETRI_TRANSITIONS=0} [2023-08-31 21:59:04,081 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 10 predicate places. [2023-08-31 21:59:04,081 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 0 transitions, 0 flow [2023-08-31 21:59:04,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 255.28571428571428) internal successors, (1787), 7 states have internal predecessors, (1787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:59:04,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (55 of 56 remaining) [2023-08-31 21:59:04,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2023-08-31 21:59:04,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2023-08-31 21:59:04,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2023-08-31 21:59:04,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2023-08-31 21:59:04,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2023-08-31 21:59:04,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2023-08-31 21:59:04,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2023-08-31 21:59:04,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 56 remaining) [2023-08-31 21:59:04,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 56 remaining) [2023-08-31 21:59:04,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2023-08-31 21:59:04,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2023-08-31 21:59:04,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2023-08-31 21:59:04,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2023-08-31 21:59:04,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2023-08-31 21:59:04,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2023-08-31 21:59:04,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err11ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2023-08-31 21:59:04,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err6ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2023-08-31 21:59:04,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err7ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2023-08-31 21:59:04,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err12ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2023-08-31 21:59:04,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err8ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2023-08-31 21:59:04,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err9ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2023-08-31 21:59:04,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err10ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2023-08-31 21:59:04,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2023-08-31 21:59:04,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2023-08-31 21:59:04,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2023-08-31 21:59:04,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2023-08-31 21:59:04,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2023-08-31 21:59:04,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2023-08-31 21:59:04,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err8ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2023-08-31 21:59:04,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err6ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2023-08-31 21:59:04,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err7ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2023-08-31 21:59:04,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err9ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2023-08-31 21:59:04,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2023-08-31 21:59:04,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2023-08-31 21:59:04,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2023-08-31 21:59:04,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2023-08-31 21:59:04,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2023-08-31 21:59:04,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2023-08-31 21:59:04,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err11ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2023-08-31 21:59:04,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err6ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2023-08-31 21:59:04,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err7ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2023-08-31 21:59:04,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err12ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2023-08-31 21:59:04,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err8ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2023-08-31 21:59:04,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err9ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2023-08-31 21:59:04,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err10ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2023-08-31 21:59:04,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2023-08-31 21:59:04,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2023-08-31 21:59:04,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2023-08-31 21:59:04,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2023-08-31 21:59:04,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2023-08-31 21:59:04,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2023-08-31 21:59:04,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err8ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2023-08-31 21:59:04,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err6ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2023-08-31 21:59:04,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err7ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2023-08-31 21:59:04,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err9ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2023-08-31 21:59:04,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-31 21:59:04,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:59:04,294 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:59:04,297 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:59:04,297 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:59:04,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:59:04 BasicIcfg [2023-08-31 21:59:04,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:59:04,300 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:59:04,300 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:59:04,300 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:59:04,300 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:57:21" (3/4) ... [2023-08-31 21:59:04,301 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:59:04,305 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2023-08-31 21:59:04,305 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2023-08-31 21:59:04,307 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-08-31 21:59:04,307 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-31 21:59:04,308 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:59:04,308 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:59:04,337 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:59:04,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:59:04,338 INFO L158 Benchmark]: Toolchain (without parser) took 103976.99ms. Allocated memory was 71.3MB in the beginning and 15.8GB in the end (delta: 15.7GB). Free memory was 47.0MB in the beginning and 11.2GB in the end (delta: -11.1GB). Peak memory consumption was 4.6GB. Max. memory is 16.1GB. [2023-08-31 21:59:04,338 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 37.0MB in the end (delta: 48.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:59:04,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.16ms. Allocated memory is still 71.3MB. Free memory was 46.9MB in the beginning and 42.8MB in the end (delta: 4.0MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2023-08-31 21:59:04,338 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.85ms. Allocated memory is still 71.3MB. Free memory was 42.6MB in the beginning and 39.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:59:04,339 INFO L158 Benchmark]: Boogie Preprocessor took 47.16ms. Allocated memory is still 71.3MB. Free memory was 39.9MB in the beginning and 37.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:59:04,339 INFO L158 Benchmark]: RCFGBuilder took 590.76ms. Allocated memory is still 71.3MB. Free memory was 37.8MB in the beginning and 30.8MB in the end (delta: 7.0MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2023-08-31 21:59:04,340 INFO L158 Benchmark]: TraceAbstraction took 102891.00ms. Allocated memory was 71.3MB in the beginning and 15.8GB in the end (delta: 15.7GB). Free memory was 30.2MB in the beginning and 11.2GB in the end (delta: -11.1GB). Peak memory consumption was 4.6GB. Max. memory is 16.1GB. [2023-08-31 21:59:04,340 INFO L158 Benchmark]: Witness Printer took 37.84ms. Allocated memory is still 15.8GB. Free memory was 11.2GB in the beginning and 11.2GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:59:04,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 37.0MB in the end (delta: 48.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.16ms. Allocated memory is still 71.3MB. Free memory was 46.9MB in the beginning and 42.8MB in the end (delta: 4.0MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.85ms. Allocated memory is still 71.3MB. Free memory was 42.6MB in the beginning and 39.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.16ms. Allocated memory is still 71.3MB. Free memory was 39.9MB in the beginning and 37.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 590.76ms. Allocated memory is still 71.3MB. Free memory was 37.8MB in the beginning and 30.8MB in the end (delta: 7.0MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * TraceAbstraction took 102891.00ms. Allocated memory was 71.3MB in the beginning and 15.8GB in the end (delta: 15.7GB). Free memory was 30.2MB in the beginning and 11.2GB in the end (delta: -11.1GB). Peak memory consumption was 4.6GB. Max. memory is 16.1GB. * Witness Printer took 37.84ms. Allocated memory is still 15.8GB. Free memory was 11.2GB in the beginning and 11.2GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.7s, 257 PlacesBefore, 111 PlacesAfterwards, 262 TransitionsBefore, 113 TransitionsAfterwards, 19388 CoEnabledTransitionPairs, 9 FixpointIterations, 94 TrivialSequentialCompositions, 96 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 3 ChoiceCompositions, 210 TotalNumberOfCompositions, 110534 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 39254, independent: 37605, independent conditional: 0, independent unconditional: 37605, dependent: 1649, dependent conditional: 0, dependent unconditional: 1649, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10046, independent: 9889, independent conditional: 0, independent unconditional: 9889, dependent: 157, dependent conditional: 0, dependent unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 39254, independent: 27716, independent conditional: 0, independent unconditional: 27716, dependent: 1492, dependent conditional: 0, dependent unconditional: 1492, unknown: 10046, unknown conditional: 0, unknown unconditional: 10046] , Statistics on independence cache: Total cache size (in pairs): 1848, Positive cache size: 1760, Positive conditional cache size: 0, Positive unconditional cache size: 1760, Negative cache size: 88, Negative conditional cache size: 0, Negative unconditional cache size: 88, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 760]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 764]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 712]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 712]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 747]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: 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 5 procedures, 421 locations, 56 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: 102.7s, OverallIterations: 22, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 95.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2049 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1524 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 188 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4750 IncrementalHoareTripleChecker+Invalid, 4938 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 188 mSolverCounterUnsat, 106 mSDtfsCounter, 4750 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=616occurred in iteration=15, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 444 NumberOfCodeBlocks, 413 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 443 ConstructedInterpolants, 0 QuantifiedInterpolants, 1368 SizeOfPredicates, 0 NumberOfNonLiveVariables, 610 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 25 InterpolantComputations, 21 PerfectInterpolantSequences, 40/83 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 31 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:59:04,365 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