./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.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 da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 03:04:46,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:04:46,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:04:46,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:04:46,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:04:46,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:04:46,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:04:46,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:04:46,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:04:46,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:04:46,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:04:46,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:04:46,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:04:46,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:04:46,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:04:46,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:04:46,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:04:46,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:04:46,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:04:46,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:04:46,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:04:46,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:04:46,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:04:46,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:04:46,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:04:46,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:04:46,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:04:46,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:04:46,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:04:46,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:04:46,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:04:46,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:04:46,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:04:46,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:04:46,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:04:46,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:04:46,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:04:46,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:04:46,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:04:46,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:04:46,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:04:46,112 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:04:46,154 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:04:46,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:04:46,156 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:04:46,156 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:04:46,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:04:46,157 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:04:46,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:04:46,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:04:46,158 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:04:46,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:04:46,159 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:04:46,159 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:04:46,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:04:46,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:04:46,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:04:46,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:04:46,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:04:46,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:04:46,160 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:04:46,161 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:04:46,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:04:46,161 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:04:46,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:04:46,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:04:46,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:04:46,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:04:46,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:04:46,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:04:46,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:04:46,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:04:46,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:04:46,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:04:46,163 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:04:46,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:04:46,163 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:04:46,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:04:46,164 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:04:46,164 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:04:46,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:04:46,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:04:46,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:04:46,493 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:04:46,494 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:04:46,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i [2023-08-29 03:04:47,825 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:04:48,110 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:04:48,114 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i [2023-08-29 03:04:48,135 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9f43e684/6172ca6a3bcf40a6a064633a29047e7c/FLAGe3cf8fa25 [2023-08-29 03:04:48,154 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9f43e684/6172ca6a3bcf40a6a064633a29047e7c [2023-08-29 03:04:48,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:04:48,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:04:48,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:04:48,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:04:48,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:04:48,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:04:48" (1/1) ... [2023-08-29 03:04:48,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@481465e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:48, skipping insertion in model container [2023-08-29 03:04:48,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:04:48" (1/1) ... [2023-08-29 03:04:48,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:04:48,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:04:48,629 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2023-08-29 03:04:48,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:04:48,713 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:04:48,758 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2023-08-29 03:04:48,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:04:48,869 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:04:48,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:48 WrapperNode [2023-08-29 03:04:48,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:04:48,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:04:48,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:04:48,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:04:48,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:48" (1/1) ... [2023-08-29 03:04:48,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:48" (1/1) ... [2023-08-29 03:04:48,979 INFO L138 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 522 [2023-08-29 03:04:48,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:04:48,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:04:48,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:04:48,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:04:48,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:48" (1/1) ... [2023-08-29 03:04:48,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:48" (1/1) ... [2023-08-29 03:04:49,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:48" (1/1) ... [2023-08-29 03:04:49,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:48" (1/1) ... [2023-08-29 03:04:49,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:48" (1/1) ... [2023-08-29 03:04:49,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:48" (1/1) ... [2023-08-29 03:04:49,077 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:48" (1/1) ... [2023-08-29 03:04:49,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:48" (1/1) ... [2023-08-29 03:04:49,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:04:49,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:04:49,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:04:49,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:04:49,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:48" (1/1) ... [2023-08-29 03:04:49,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:04:49,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:04:49,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 03:04:49,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 03:04:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:04:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 03:04:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-29 03:04:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-29 03:04:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:04:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-29 03:04:49,172 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-29 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 03:04:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-08-29 03:04:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-08-29 03:04:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:04:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:04:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:04:49,175 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 03:04:49,417 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:04:49,419 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:04:50,210 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:04:50,224 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:04:50,225 INFO L302 CfgBuilder]: Removed 28 assume(true) statements. [2023-08-29 03:04:50,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:04:50 BoogieIcfgContainer [2023-08-29 03:04:50,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:04:50,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:04:50,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:04:50,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:04:50,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:04:48" (1/3) ... [2023-08-29 03:04:50,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e02c64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:04:50, skipping insertion in model container [2023-08-29 03:04:50,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:48" (2/3) ... [2023-08-29 03:04:50,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e02c64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:04:50, skipping insertion in model container [2023-08-29 03:04:50,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:04:50" (3/3) ... [2023-08-29 03:04:50,261 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2023-08-29 03:04:50,271 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:04:50,279 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:04:50,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-08-29 03:04:50,280 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:04:50,445 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-08-29 03:04:50,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 522 places, 561 transitions, 1164 flow [2023-08-29 03:04:51,034 INFO L130 PetriNetUnfolder]: 165/1600 cut-off events. [2023-08-29 03:04:51,034 INFO L131 PetriNetUnfolder]: For 36/66 co-relation queries the response was YES. [2023-08-29 03:04:51,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1661 conditions, 1600 events. 165/1600 cut-off events. For 36/66 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11505 event pairs, 0 based on Foata normal form. 0/1337 useless extension candidates. Maximal degree in co-relation 821. Up to 16 conditions per place. [2023-08-29 03:04:51,072 INFO L82 GeneralOperation]: Start removeDead. Operand has 522 places, 561 transitions, 1164 flow [2023-08-29 03:04:51,097 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 522 places, 561 transitions, 1164 flow [2023-08-29 03:04:51,101 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:04:51,114 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 522 places, 561 transitions, 1164 flow [2023-08-29 03:04:51,120 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 522 places, 561 transitions, 1164 flow [2023-08-29 03:04:51,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 522 places, 561 transitions, 1164 flow [2023-08-29 03:04:51,539 INFO L130 PetriNetUnfolder]: 165/1600 cut-off events. [2023-08-29 03:04:51,540 INFO L131 PetriNetUnfolder]: For 36/66 co-relation queries the response was YES. [2023-08-29 03:04:51,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1661 conditions, 1600 events. 165/1600 cut-off events. For 36/66 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11505 event pairs, 0 based on Foata normal form. 0/1337 useless extension candidates. Maximal degree in co-relation 821. Up to 16 conditions per place. [2023-08-29 03:04:51,814 INFO L119 LiptonReduction]: Number of co-enabled transitions 137088 [2023-08-29 03:05:24,690 WARN L222 SmtUtils]: Spent 10.51s on a formula simplification. DAG size of input: 301 DAG size of output: 299 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:05:38,279 WARN L222 SmtUtils]: Spent 13.58s on a formula simplification that was a NOOP. DAG size: 277 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:06:02,203 WARN L222 SmtUtils]: Spent 23.92s on a formula simplification. DAG size of input: 301 DAG size of output: 299 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:06:06,691 INFO L134 LiptonReduction]: Checked pairs total: 880833 [2023-08-29 03:06:06,692 INFO L136 LiptonReduction]: Total number of compositions: 372 [2023-08-29 03:06:06,717 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:06:06,723 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;@65f86892, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:06:06,723 INFO L358 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2023-08-29 03:06:06,726 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 03:06:06,726 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:06:06,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:06:06,727 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 03:06:06,732 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:06:06,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:06:06,738 INFO L85 PathProgramCache]: Analyzing trace with hash 2038, now seen corresponding path program 1 times [2023-08-29 03:06:06,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:06:06,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721293681] [2023-08-29 03:06:06,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:06:06,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:06:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:06:06,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:06:06,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:06:06,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721293681] [2023-08-29 03:06:06,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721293681] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:06:06,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:06:06,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 03:06:06,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819548602] [2023-08-29 03:06:06,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:06:06,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:06:06,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:06:06,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:06:06,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:06:06,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 517 out of 933 [2023-08-29 03:06:06,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 263 transitions, 568 flow. Second operand has 2 states, 2 states have (on average 517.5) internal successors, (1035), 2 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:06:06,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:06:06,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 517 of 933 [2023-08-29 03:06:06,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:07:17,473 INFO L130 PetriNetUnfolder]: 401636/785720 cut-off events. [2023-08-29 03:07:17,473 INFO L131 PetriNetUnfolder]: For 8543/8543 co-relation queries the response was YES. [2023-08-29 03:07:19,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1322379 conditions, 785720 events. 401636/785720 cut-off events. For 8543/8543 co-relation queries the response was YES. Maximal size of possible extension queue 12173. Compared 10170019 event pairs, 367428 based on Foata normal form. 49878/734690 useless extension candidates. Maximal degree in co-relation 1246829. Up to 531100 conditions per place. [2023-08-29 03:07:23,840 INFO L137 encePairwiseOnDemand]: 903/933 looper letters, 98 selfloop transitions, 0 changer transitions 0/233 dead transitions. [2023-08-29 03:07:23,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 233 transitions, 704 flow [2023-08-29 03:07:23,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:07:23,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:07:23,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1162 transitions. [2023-08-29 03:07:23,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6227224008574491 [2023-08-29 03:07:23,857 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1162 transitions. [2023-08-29 03:07:23,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1162 transitions. [2023-08-29 03:07:23,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:07:23,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1162 transitions. [2023-08-29 03:07:23,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 581.0) internal successors, (1162), 2 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:07:23,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 933.0) internal successors, (2799), 3 states have internal predecessors, (2799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:07:23,879 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 933.0) internal successors, (2799), 3 states have internal predecessors, (2799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:07:23,881 INFO L175 Difference]: Start difference. First operand has 234 places, 263 transitions, 568 flow. Second operand 2 states and 1162 transitions. [2023-08-29 03:07:23,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 233 transitions, 704 flow [2023-08-29 03:07:24,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 233 transitions, 704 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:07:24,173 INFO L231 Difference]: Finished difference. Result has 227 places, 233 transitions, 508 flow [2023-08-29 03:07:24,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=933, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=508, PETRI_PLACES=227, PETRI_TRANSITIONS=233} [2023-08-29 03:07:24,179 INFO L281 CegarLoopForPetriNet]: 234 programPoint places, -7 predicate places. [2023-08-29 03:07:24,179 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 233 transitions, 508 flow [2023-08-29 03:07:24,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 517.5) internal successors, (1035), 2 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:07:24,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:07:24,180 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 03:07:24,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:07:24,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:07:24,181 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:07:24,181 INFO L85 PathProgramCache]: Analyzing trace with hash 314000323, now seen corresponding path program 1 times [2023-08-29 03:07:24,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:07:24,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538119411] [2023-08-29 03:07:24,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:07:24,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:07:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:07:24,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:07:24,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:07:24,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538119411] [2023-08-29 03:07:24,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538119411] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:07:24,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:07:24,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:07:24,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464758828] [2023-08-29 03:07:24,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:07:24,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:07:24,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:07:24,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:07:24,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:07:24,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 933 [2023-08-29 03:07:24,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 233 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 514.6666666666666) internal successors, (1544), 3 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:07:24,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:07:24,430 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 933 [2023-08-29 03:07:24,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:08:33,214 INFO L130 PetriNetUnfolder]: 397835/785365 cut-off events. [2023-08-29 03:08:33,214 INFO L131 PetriNetUnfolder]: For 8836/8836 co-relation queries the response was YES. [2023-08-29 03:08:35,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1316372 conditions, 785365 events. 397835/785365 cut-off events. For 8836/8836 co-relation queries the response was YES. Maximal size of possible extension queue 12025. Compared 10238882 event pairs, 341423 based on Foata normal form. 0/686681 useless extension candidates. Maximal degree in co-relation 1316366. Up to 525481 conditions per place. [2023-08-29 03:08:39,101 INFO L137 encePairwiseOnDemand]: 930/933 looper letters, 114 selfloop transitions, 2 changer transitions 0/251 dead transitions. [2023-08-29 03:08:39,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 251 transitions, 776 flow [2023-08-29 03:08:39,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:08:39,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:08:39,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1656 transitions. [2023-08-29 03:08:39,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5916398713826366 [2023-08-29 03:08:39,105 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1656 transitions. [2023-08-29 03:08:39,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1656 transitions. [2023-08-29 03:08:39,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:08:39,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1656 transitions. [2023-08-29 03:08:39,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 552.0) internal successors, (1656), 3 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:08:39,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 933.0) internal successors, (3732), 4 states have internal predecessors, (3732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:08:39,118 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 933.0) internal successors, (3732), 4 states have internal predecessors, (3732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:08:39,119 INFO L175 Difference]: Start difference. First operand has 227 places, 233 transitions, 508 flow. Second operand 3 states and 1656 transitions. [2023-08-29 03:08:39,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 251 transitions, 776 flow [2023-08-29 03:08:40,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 251 transitions, 776 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:08:40,400 INFO L231 Difference]: Finished difference. Result has 230 places, 233 transitions, 516 flow [2023-08-29 03:08:40,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=933, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=516, PETRI_PLACES=230, PETRI_TRANSITIONS=233} [2023-08-29 03:08:40,401 INFO L281 CegarLoopForPetriNet]: 234 programPoint places, -4 predicate places. [2023-08-29 03:08:40,401 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 233 transitions, 516 flow [2023-08-29 03:08:40,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.6666666666666) internal successors, (1544), 3 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:08:40,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:08:40,403 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:08:40,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:08:40,403 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:08:40,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:08:40,404 INFO L85 PathProgramCache]: Analyzing trace with hash -175556122, now seen corresponding path program 1 times [2023-08-29 03:08:40,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:08:40,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524947463] [2023-08-29 03:08:40,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:08:40,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:08:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:08:40,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:08:40,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:08:40,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524947463] [2023-08-29 03:08:40,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524947463] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:08:40,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639481747] [2023-08-29 03:08:40,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:08:40,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:08:40,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:08:40,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:08:40,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 03:08:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:08:40,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 03:08:40,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:08:40,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 03:08:40,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 03:08:40,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639481747] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:08:40,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 03:08:40,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-29 03:08:40,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705858064] [2023-08-29 03:08:40,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:08:40,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:08:40,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:08:40,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:08:40,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 03:08:40,774 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 507 out of 933 [2023-08-29 03:08:40,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 233 transitions, 516 flow. Second operand has 3 states, 3 states have (on average 510.0) internal successors, (1530), 3 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:08:40,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:08:40,777 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 507 of 933 [2023-08-29 03:08:40,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:09:49,807 INFO L130 PetriNetUnfolder]: 397835/784747 cut-off events. [2023-08-29 03:09:49,807 INFO L131 PetriNetUnfolder]: For 8870/8870 co-relation queries the response was YES. [2023-08-29 03:09:52,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1315804 conditions, 784747 events. 397835/784747 cut-off events. For 8870/8870 co-relation queries the response was YES. Maximal size of possible extension queue 12047. Compared 10227293 event pairs, 364530 based on Foata normal form. 0/686042 useless extension candidates. Maximal degree in co-relation 1315796. Up to 525500 conditions per place. [2023-08-29 03:09:55,865 INFO L137 encePairwiseOnDemand]: 930/933 looper letters, 97 selfloop transitions, 1 changer transitions 0/231 dead transitions. [2023-08-29 03:09:55,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 231 transitions, 708 flow [2023-08-29 03:09:55,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:09:55,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:09:55,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1621 transitions. [2023-08-29 03:09:55,870 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.579135405501965 [2023-08-29 03:09:55,870 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1621 transitions. [2023-08-29 03:09:55,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1621 transitions. [2023-08-29 03:09:55,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:09:55,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1621 transitions. [2023-08-29 03:09:55,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 540.3333333333334) internal successors, (1621), 3 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:09:55,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 933.0) internal successors, (3732), 4 states have internal predecessors, (3732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:09:55,882 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 933.0) internal successors, (3732), 4 states have internal predecessors, (3732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:09:55,882 INFO L175 Difference]: Start difference. First operand has 230 places, 233 transitions, 516 flow. Second operand 3 states and 1621 transitions. [2023-08-29 03:09:55,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 231 transitions, 708 flow [2023-08-29 03:09:57,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 231 transitions, 704 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:09:57,202 INFO L231 Difference]: Finished difference. Result has 228 places, 231 transitions, 510 flow [2023-08-29 03:09:57,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=933, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=510, PETRI_PLACES=228, PETRI_TRANSITIONS=231} [2023-08-29 03:09:57,204 INFO L281 CegarLoopForPetriNet]: 234 programPoint places, -6 predicate places. [2023-08-29 03:09:57,204 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 231 transitions, 510 flow [2023-08-29 03:09:57,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 510.0) internal successors, (1530), 3 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:09:57,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:09:57,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:09:57,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 03:09:57,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:09:57,413 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t3_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:09:57,413 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:09:57,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1111092266, now seen corresponding path program 1 times [2023-08-29 03:09:57,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:09:57,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861541223] [2023-08-29 03:09:57,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:09:57,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:09:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:09:57,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:09:57,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:09:57,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861541223] [2023-08-29 03:09:57,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861541223] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:09:57,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146859035] [2023-08-29 03:09:57,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:09:57,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:09:57,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:09:57,529 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:09:57,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 03:09:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:09:57,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-29 03:09:57,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:09:57,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 03:09:57,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 03:09:57,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146859035] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:09:57,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 03:09:57,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-08-29 03:09:57,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452758143] [2023-08-29 03:09:57,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:09:57,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:09:57,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:09:57,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:09:57,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 03:09:57,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 933 [2023-08-29 03:09:57,708 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 231 transitions, 510 flow. Second operand has 3 states, 3 states have (on average 516.0) internal successors, (1548), 3 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:09:57,708 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:09:57,708 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 933 [2023-08-29 03:09:57,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:11:07,936 INFO L130 PetriNetUnfolder]: 390016/776274 cut-off events. [2023-08-29 03:11:07,937 INFO L131 PetriNetUnfolder]: For 8778/8778 co-relation queries the response was YES. [2023-08-29 03:11:10,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1303928 conditions, 776274 events. 390016/776274 cut-off events. For 8778/8778 co-relation queries the response was YES. Maximal size of possible extension queue 12665. Compared 10304872 event pairs, 236409 based on Foata normal form. 0/680130 useless extension candidates. Maximal degree in co-relation 1303920. Up to 520826 conditions per place. [2023-08-29 03:11:13,641 INFO L137 encePairwiseOnDemand]: 930/933 looper letters, 138 selfloop transitions, 2 changer transitions 0/273 dead transitions. [2023-08-29 03:11:13,641 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 273 transitions, 874 flow [2023-08-29 03:11:13,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:11:13,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:11:13,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1680 transitions. [2023-08-29 03:11:13,646 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6002143622722401 [2023-08-29 03:11:13,646 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1680 transitions. [2023-08-29 03:11:13,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1680 transitions. [2023-08-29 03:11:13,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:11:13,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1680 transitions. [2023-08-29 03:11:13,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 560.0) internal successors, (1680), 3 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:11:13,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 933.0) internal successors, (3732), 4 states have internal predecessors, (3732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:11:13,656 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 933.0) internal successors, (3732), 4 states have internal predecessors, (3732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:11:13,656 INFO L175 Difference]: Start difference. First operand has 228 places, 231 transitions, 510 flow. Second operand 3 states and 1680 transitions. [2023-08-29 03:11:13,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 273 transitions, 874 flow [2023-08-29 03:11:15,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 273 transitions, 873 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:11:15,273 INFO L231 Difference]: Finished difference. Result has 230 places, 231 transitions, 517 flow [2023-08-29 03:11:15,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=933, PETRI_DIFFERENCE_MINUEND_FLOW=509, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=517, PETRI_PLACES=230, PETRI_TRANSITIONS=231} [2023-08-29 03:11:15,274 INFO L281 CegarLoopForPetriNet]: 234 programPoint places, -4 predicate places. [2023-08-29 03:11:15,274 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 231 transitions, 517 flow [2023-08-29 03:11:15,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 516.0) internal successors, (1548), 3 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:11:15,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:11:15,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:11:15,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 03:11:15,480 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,SelfDestructingSolverStorable3 [2023-08-29 03:11:15,481 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:11:15,481 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:11:15,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1468187481, now seen corresponding path program 1 times [2023-08-29 03:11:15,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:11:15,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433263895] [2023-08-29 03:11:15,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:11:15,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:11:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:11:15,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:11:15,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:11:15,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433263895] [2023-08-29 03:11:15,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433263895] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:11:15,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:11:15,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:11:15,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146659702] [2023-08-29 03:11:15,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:11:15,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:11:15,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:11:15,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:11:15,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:11:16,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 933 [2023-08-29 03:11:16,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 231 transitions, 517 flow. Second operand has 6 states, 6 states have (on average 412.6666666666667) internal successors, (2476), 6 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:11:16,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:11:16,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 933 [2023-08-29 03:11:16,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand