./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 17:40:55,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:40:55,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:40:55,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:40:55,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:40:55,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:40:55,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:40:55,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:40:55,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:40:56,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:40:56,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:40:56,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:40:56,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:40:56,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:40:56,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:40:56,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:40:56,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:40:56,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:40:56,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:40:56,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:40:56,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:40:56,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:40:56,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:40:56,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:40:56,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:40:56,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:40:56,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:40:56,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:40:56,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:40:56,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:40:56,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:40:56,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:40:56,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:40:56,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:40:56,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:40:56,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:40:56,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:40:56,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:40:56,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:40:56,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:40:56,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:40:56,047 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:40:56,078 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:40:56,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:40:56,080 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:40:56,080 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:40:56,081 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:40:56,081 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:40:56,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:40:56,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:40:56,083 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:40:56,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:40:56,084 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:40:56,084 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:40:56,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:40:56,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:40:56,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:40:56,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:40:56,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:40:56,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:40:56,085 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:40:56,085 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:40:56,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:40:56,086 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:40:56,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:40:56,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:40:56,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:40:56,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:40:56,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:40:56,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:40:56,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:40:56,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:40:56,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:40:56,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:40:56,088 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:40:56,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:40:56,088 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:40:56,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:40:56,089 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:40:56,089 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:40:56,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:40:56,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:40:56,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:40:56,428 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:40:56,428 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:40:56,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-08-29 17:40:57,479 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:40:57,760 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:40:57,761 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-08-29 17:40:57,774 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e5250664/73db4b7781784248af86d496eae5374e/FLAG49272f213 [2023-08-29 17:40:57,787 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e5250664/73db4b7781784248af86d496eae5374e [2023-08-29 17:40:57,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:40:57,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:40:57,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:40:57,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:40:57,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:40:57,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:40:57" (1/1) ... [2023-08-29 17:40:57,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52e49755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:57, skipping insertion in model container [2023-08-29 17:40:57,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:40:57" (1/1) ... [2023-08-29 17:40:57,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:40:57,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:40:58,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:40:58,480 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:40:58,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:40:58,616 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:40:58,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:58 WrapperNode [2023-08-29 17:40:58,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:40:58,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:40:58,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:40:58,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:40:58,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:58" (1/1) ... [2023-08-29 17:40:58,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:58" (1/1) ... [2023-08-29 17:40:58,673 INFO L138 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 93 [2023-08-29 17:40:58,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:40:58,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:40:58,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:40:58,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:40:58,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:58" (1/1) ... [2023-08-29 17:40:58,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:58" (1/1) ... [2023-08-29 17:40:58,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:58" (1/1) ... [2023-08-29 17:40:58,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:58" (1/1) ... [2023-08-29 17:40:58,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:58" (1/1) ... [2023-08-29 17:40:58,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:58" (1/1) ... [2023-08-29 17:40:58,711 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:58" (1/1) ... [2023-08-29 17:40:58,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:58" (1/1) ... [2023-08-29 17:40:58,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:40:58,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:40:58,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:40:58,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:40:58,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:58" (1/1) ... [2023-08-29 17:40:58,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:40:58,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:40:58,754 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 17:40:58,777 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 17:40:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:40:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:40:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:40:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:40:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:40:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 17:40:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:40:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:40:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:40:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:40:58,788 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 17:40:58,902 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:40:58,903 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:40:59,139 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:40:59,145 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:40:59,145 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:40:59,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:40:59 BoogieIcfgContainer [2023-08-29 17:40:59,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:40:59,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:40:59,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:40:59,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:40:59,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:40:57" (1/3) ... [2023-08-29 17:40:59,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76629f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:40:59, skipping insertion in model container [2023-08-29 17:40:59,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:58" (2/3) ... [2023-08-29 17:40:59,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76629f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:40:59, skipping insertion in model container [2023-08-29 17:40:59,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:40:59" (3/3) ... [2023-08-29 17:40:59,154 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2023-08-29 17:40:59,172 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:40:59,180 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:40:59,180 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-29 17:40:59,180 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:40:59,255 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:40:59,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 105 transitions, 215 flow [2023-08-29 17:40:59,333 INFO L130 PetriNetUnfolder]: 0/104 cut-off events. [2023-08-29 17:40:59,334 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:40:59,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 0/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:40:59,337 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 105 transitions, 215 flow [2023-08-29 17:40:59,341 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 104 transitions, 211 flow [2023-08-29 17:40:59,345 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:40:59,359 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 104 transitions, 211 flow [2023-08-29 17:40:59,362 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 104 transitions, 211 flow [2023-08-29 17:40:59,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 104 transitions, 211 flow [2023-08-29 17:40:59,384 INFO L130 PetriNetUnfolder]: 0/104 cut-off events. [2023-08-29 17:40:59,385 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:40:59,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 0/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:40:59,387 INFO L119 LiptonReduction]: Number of co-enabled transitions 2304 [2023-08-29 17:41:01,794 INFO L134 LiptonReduction]: Checked pairs total: 12387 [2023-08-29 17:41:01,794 INFO L136 LiptonReduction]: Total number of compositions: 73 [2023-08-29 17:41:01,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:41:01,809 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;@5e1ff118, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:41:01,809 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-29 17:41:01,811 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 17:41:01,811 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:41:01,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:01,811 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 17:41:01,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:41:01,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:01,816 INFO L85 PathProgramCache]: Analyzing trace with hash 343, now seen corresponding path program 1 times [2023-08-29 17:41:01,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:01,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019809317] [2023-08-29 17:41:01,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:01,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:01,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:01,905 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 17:41:01,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:01,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019809317] [2023-08-29 17:41:01,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019809317] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:01,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:01,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 17:41:01,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366438236] [2023-08-29 17:41:01,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:01,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 17:41:01,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:01,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 17:41:01,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 17:41:01,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 178 [2023-08-29 17:41:01,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 43 transitions, 89 flow. Second operand has 2 states, 2 states have (on average 104.5) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states 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 17:41:01,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:01,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 178 [2023-08-29 17:41:01,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:02,010 INFO L130 PetriNetUnfolder]: 49/216 cut-off events. [2023-08-29 17:41:02,010 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:41:02,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 216 events. 49/216 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 913 event pairs, 49 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 326. Up to 115 conditions per place. [2023-08-29 17:41:02,013 INFO L137 encePairwiseOnDemand]: 175/178 looper letters, 16 selfloop transitions, 0 changer transitions 0/40 dead transitions. [2023-08-29 17:41:02,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 40 transitions, 115 flow [2023-08-29 17:41:02,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 17:41:02,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 17:41:02,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 227 transitions. [2023-08-29 17:41:02,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6376404494382022 [2023-08-29 17:41:02,025 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 227 transitions. [2023-08-29 17:41:02,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 227 transitions. [2023-08-29 17:41:02,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:02,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 227 transitions. [2023-08-29 17:41:02,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states 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 17:41:02,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states 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 17:41:02,035 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states 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 17:41:02,036 INFO L175 Difference]: Start difference. First operand has 47 places, 43 transitions, 89 flow. Second operand 2 states and 227 transitions. [2023-08-29 17:41:02,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 40 transitions, 115 flow [2023-08-29 17:41:02,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 40 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:41:02,040 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 82 flow [2023-08-29 17:41:02,042 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2023-08-29 17:41:02,045 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2023-08-29 17:41:02,045 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 82 flow [2023-08-29 17:41:02,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 104.5) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states 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 17:41:02,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:02,046 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 17:41:02,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:41:02,046 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:41:02,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:02,047 INFO L85 PathProgramCache]: Analyzing trace with hash 10672680, now seen corresponding path program 1 times [2023-08-29 17:41:02,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:02,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239538756] [2023-08-29 17:41:02,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:02,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:02,173 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 17:41:02,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:02,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239538756] [2023-08-29 17:41:02,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239538756] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:02,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:02,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:41:02,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955944391] [2023-08-29 17:41:02,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:02,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:41:02,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:02,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:41:02,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:41:02,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 178 [2023-08-29 17:41:02,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states 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 17:41:02,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:02,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 178 [2023-08-29 17:41:02,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:02,256 INFO L130 PetriNetUnfolder]: 49/213 cut-off events. [2023-08-29 17:41:02,257 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:41:02,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 213 events. 49/213 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 893 event pairs, 49 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 329. Up to 114 conditions per place. [2023-08-29 17:41:02,262 INFO L137 encePairwiseOnDemand]: 175/178 looper letters, 15 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2023-08-29 17:41:02,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 38 transitions, 110 flow [2023-08-29 17:41:02,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:41:02,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:41:02,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2023-08-29 17:41:02,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5617977528089888 [2023-08-29 17:41:02,270 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 300 transitions. [2023-08-29 17:41:02,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 300 transitions. [2023-08-29 17:41:02,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:02,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 300 transitions. [2023-08-29 17:41:02,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states 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 17:41:02,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states 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 17:41:02,276 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states 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 17:41:02,276 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 82 flow. Second operand 3 states and 300 transitions. [2023-08-29 17:41:02,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 38 transitions, 110 flow [2023-08-29 17:41:02,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 110 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:41:02,278 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 80 flow [2023-08-29 17:41:02,279 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=44, PETRI_TRANSITIONS=38} [2023-08-29 17:41:02,279 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2023-08-29 17:41:02,280 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 80 flow [2023-08-29 17:41:02,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states 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 17:41:02,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:02,280 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:41:02,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:41:02,281 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:41:02,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:02,285 INFO L85 PathProgramCache]: Analyzing trace with hash 536002264, now seen corresponding path program 1 times [2023-08-29 17:41:02,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:02,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814890527] [2023-08-29 17:41:02,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:02,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:02,755 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 17:41:02,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:02,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814890527] [2023-08-29 17:41:02,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814890527] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:02,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:02,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:41:02,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125784523] [2023-08-29 17:41:02,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:02,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:41:02,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:02,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:41:02,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:41:02,898 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 178 [2023-08-29 17:41:02,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 80 flow. Second operand has 6 states, 6 states have (on average 84.66666666666667) internal successors, (508), 6 states have internal predecessors, (508), 0 states have call successors, (0), 0 states 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 17:41:02,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:02,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 178 [2023-08-29 17:41:02,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:03,066 INFO L130 PetriNetUnfolder]: 184/461 cut-off events. [2023-08-29 17:41:03,067 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:41:03,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 869 conditions, 461 events. 184/461 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2042 event pairs, 101 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 865. Up to 301 conditions per place. [2023-08-29 17:41:03,076 INFO L137 encePairwiseOnDemand]: 167/178 looper letters, 55 selfloop transitions, 22 changer transitions 0/87 dead transitions. [2023-08-29 17:41:03,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 87 transitions, 332 flow [2023-08-29 17:41:03,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:41:03,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:41:03,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 576 transitions. [2023-08-29 17:41:03,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5393258426966292 [2023-08-29 17:41:03,078 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 576 transitions. [2023-08-29 17:41:03,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 576 transitions. [2023-08-29 17:41:03,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:03,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 576 transitions. [2023-08-29 17:41:03,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.0) internal successors, (576), 6 states have internal predecessors, (576), 0 states have call successors, (0), 0 states 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 17:41:03,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:03,083 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:03,083 INFO L175 Difference]: Start difference. First operand has 44 places, 38 transitions, 80 flow. Second operand 6 states and 576 transitions. [2023-08-29 17:41:03,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 87 transitions, 332 flow [2023-08-29 17:41:03,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 87 transitions, 331 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:41:03,086 INFO L231 Difference]: Finished difference. Result has 53 places, 59 transitions, 229 flow [2023-08-29 17:41:03,086 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=229, PETRI_PLACES=53, PETRI_TRANSITIONS=59} [2023-08-29 17:41:03,086 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 6 predicate places. [2023-08-29 17:41:03,087 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 59 transitions, 229 flow [2023-08-29 17:41:03,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.66666666666667) internal successors, (508), 6 states have internal predecessors, (508), 0 states have call successors, (0), 0 states 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 17:41:03,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:03,087 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:41:03,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:41:03,088 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:41:03,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:03,088 INFO L85 PathProgramCache]: Analyzing trace with hash 671332788, now seen corresponding path program 1 times [2023-08-29 17:41:03,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:03,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095927676] [2023-08-29 17:41:03,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:03,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:03,290 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 17:41:03,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:03,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095927676] [2023-08-29 17:41:03,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095927676] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:03,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:03,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:41:03,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476082627] [2023-08-29 17:41:03,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:03,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:41:03,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:03,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:41:03,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:41:03,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 178 [2023-08-29 17:41:03,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 59 transitions, 229 flow. Second operand has 6 states, 6 states have (on average 84.66666666666667) internal successors, (508), 6 states have internal predecessors, (508), 0 states have call successors, (0), 0 states 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 17:41:03,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:03,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 178 [2023-08-29 17:41:03,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:03,607 INFO L130 PetriNetUnfolder]: 220/537 cut-off events. [2023-08-29 17:41:03,607 INFO L131 PetriNetUnfolder]: For 140/146 co-relation queries the response was YES. [2023-08-29 17:41:03,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1236 conditions, 537 events. 220/537 cut-off events. For 140/146 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2555 event pairs, 88 based on Foata normal form. 5/530 useless extension candidates. Maximal degree in co-relation 1228. Up to 350 conditions per place. [2023-08-29 17:41:03,611 INFO L137 encePairwiseOnDemand]: 167/178 looper letters, 66 selfloop transitions, 26 changer transitions 0/105 dead transitions. [2023-08-29 17:41:03,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 105 transitions, 531 flow [2023-08-29 17:41:03,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:41:03,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:41:03,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 573 transitions. [2023-08-29 17:41:03,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5365168539325843 [2023-08-29 17:41:03,620 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 573 transitions. [2023-08-29 17:41:03,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 573 transitions. [2023-08-29 17:41:03,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:03,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 573 transitions. [2023-08-29 17:41:03,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states 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 17:41:03,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:03,625 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:03,626 INFO L175 Difference]: Start difference. First operand has 53 places, 59 transitions, 229 flow. Second operand 6 states and 573 transitions. [2023-08-29 17:41:03,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 105 transitions, 531 flow [2023-08-29 17:41:03,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 105 transitions, 531 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:41:03,632 INFO L231 Difference]: Finished difference. Result has 63 places, 80 transitions, 413 flow [2023-08-29 17:41:03,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=413, PETRI_PLACES=63, PETRI_TRANSITIONS=80} [2023-08-29 17:41:03,634 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 16 predicate places. [2023-08-29 17:41:03,634 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 80 transitions, 413 flow [2023-08-29 17:41:03,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.66666666666667) internal successors, (508), 6 states have internal predecessors, (508), 0 states have call successors, (0), 0 states 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 17:41:03,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:03,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:41:03,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:41:03,635 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:41:03,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:03,636 INFO L85 PathProgramCache]: Analyzing trace with hash 465092287, now seen corresponding path program 1 times [2023-08-29 17:41:03,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:03,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776314873] [2023-08-29 17:41:03,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:03,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:03,939 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 17:41:03,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:03,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776314873] [2023-08-29 17:41:03,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776314873] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:03,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:03,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:41:03,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590718111] [2023-08-29 17:41:03,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:03,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:41:03,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:03,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:41:03,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:41:04,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 178 [2023-08-29 17:41:04,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 80 transitions, 413 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states 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 17:41:04,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:04,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 178 [2023-08-29 17:41:04,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:04,252 INFO L130 PetriNetUnfolder]: 345/781 cut-off events. [2023-08-29 17:41:04,252 INFO L131 PetriNetUnfolder]: For 544/552 co-relation queries the response was YES. [2023-08-29 17:41:04,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2296 conditions, 781 events. 345/781 cut-off events. For 544/552 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3735 event pairs, 123 based on Foata normal form. 0/761 useless extension candidates. Maximal degree in co-relation 2283. Up to 586 conditions per place. [2023-08-29 17:41:04,258 INFO L137 encePairwiseOnDemand]: 163/178 looper letters, 89 selfloop transitions, 53 changer transitions 8/156 dead transitions. [2023-08-29 17:41:04,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 156 transitions, 1017 flow [2023-08-29 17:41:04,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:41:04,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:41:04,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 560 transitions. [2023-08-29 17:41:04,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5243445692883895 [2023-08-29 17:41:04,260 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 560 transitions. [2023-08-29 17:41:04,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 560 transitions. [2023-08-29 17:41:04,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:04,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 560 transitions. [2023-08-29 17:41:04,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 states have internal predecessors, (560), 0 states have call successors, (0), 0 states 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 17:41:04,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:04,264 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:04,264 INFO L175 Difference]: Start difference. First operand has 63 places, 80 transitions, 413 flow. Second operand 6 states and 560 transitions. [2023-08-29 17:41:04,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 156 transitions, 1017 flow [2023-08-29 17:41:04,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 156 transitions, 1017 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:41:04,271 INFO L231 Difference]: Finished difference. Result has 73 places, 127 transitions, 895 flow [2023-08-29 17:41:04,271 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=895, PETRI_PLACES=73, PETRI_TRANSITIONS=127} [2023-08-29 17:41:04,272 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 26 predicate places. [2023-08-29 17:41:04,272 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 127 transitions, 895 flow [2023-08-29 17:41:04,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states 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 17:41:04,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:04,273 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:41:04,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:41:04,273 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:41:04,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:04,273 INFO L85 PathProgramCache]: Analyzing trace with hash -198705073, now seen corresponding path program 1 times [2023-08-29 17:41:04,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:04,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612788840] [2023-08-29 17:41:04,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:04,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:04,475 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 17:41:04,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:04,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612788840] [2023-08-29 17:41:04,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612788840] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:04,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:04,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:41:04,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600880152] [2023-08-29 17:41:04,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:04,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:41:04,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:04,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:41:04,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:41:04,572 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 178 [2023-08-29 17:41:04,573 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 127 transitions, 895 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states 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 17:41:04,573 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:04,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 178 [2023-08-29 17:41:04,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:04,779 INFO L130 PetriNetUnfolder]: 411/925 cut-off events. [2023-08-29 17:41:04,780 INFO L131 PetriNetUnfolder]: For 1290/1307 co-relation queries the response was YES. [2023-08-29 17:41:04,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3356 conditions, 925 events. 411/925 cut-off events. For 1290/1307 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4667 event pairs, 118 based on Foata normal form. 0/902 useless extension candidates. Maximal degree in co-relation 3338. Up to 718 conditions per place. [2023-08-29 17:41:04,786 INFO L137 encePairwiseOnDemand]: 163/178 looper letters, 120 selfloop transitions, 58 changer transitions 26/210 dead transitions. [2023-08-29 17:41:04,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 210 transitions, 1753 flow [2023-08-29 17:41:04,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:41:04,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:41:04,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2023-08-29 17:41:04,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5205992509363296 [2023-08-29 17:41:04,789 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 556 transitions. [2023-08-29 17:41:04,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 556 transitions. [2023-08-29 17:41:04,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:04,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 556 transitions. [2023-08-29 17:41:04,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 0 states have call successors, (0), 0 states 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 17:41:04,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:04,794 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:04,794 INFO L175 Difference]: Start difference. First operand has 73 places, 127 transitions, 895 flow. Second operand 6 states and 556 transitions. [2023-08-29 17:41:04,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 210 transitions, 1753 flow [2023-08-29 17:41:04,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 210 transitions, 1689 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-08-29 17:41:04,807 INFO L231 Difference]: Finished difference. Result has 83 places, 168 transitions, 1357 flow [2023-08-29 17:41:04,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=837, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1357, PETRI_PLACES=83, PETRI_TRANSITIONS=168} [2023-08-29 17:41:04,810 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 36 predicate places. [2023-08-29 17:41:04,812 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 168 transitions, 1357 flow [2023-08-29 17:41:04,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states 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 17:41:04,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:04,813 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:41:04,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:41:04,813 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:41:04,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:04,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1315922940, now seen corresponding path program 1 times [2023-08-29 17:41:04,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:04,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759242262] [2023-08-29 17:41:04,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:04,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:05,320 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 17:41:05,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:05,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759242262] [2023-08-29 17:41:05,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759242262] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:05,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:05,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:41:05,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917743085] [2023-08-29 17:41:05,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:05,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:41:05,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:05,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:41:05,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:41:05,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 178 [2023-08-29 17:41:05,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 168 transitions, 1357 flow. Second operand has 6 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 0 states have call successors, (0), 0 states 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 17:41:05,395 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:05,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 178 [2023-08-29 17:41:05,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:05,577 INFO L130 PetriNetUnfolder]: 305/796 cut-off events. [2023-08-29 17:41:05,577 INFO L131 PetriNetUnfolder]: For 1772/1798 co-relation queries the response was YES. [2023-08-29 17:41:05,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3043 conditions, 796 events. 305/796 cut-off events. For 1772/1798 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4462 event pairs, 20 based on Foata normal form. 6/799 useless extension candidates. Maximal degree in co-relation 3020. Up to 187 conditions per place. [2023-08-29 17:41:05,583 INFO L137 encePairwiseOnDemand]: 171/178 looper letters, 37 selfloop transitions, 7 changer transitions 23/199 dead transitions. [2023-08-29 17:41:05,583 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 199 transitions, 1637 flow [2023-08-29 17:41:05,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:41:05,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:41:05,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 612 transitions. [2023-08-29 17:41:05,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5730337078651685 [2023-08-29 17:41:05,586 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 612 transitions. [2023-08-29 17:41:05,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 612 transitions. [2023-08-29 17:41:05,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:05,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 612 transitions. [2023-08-29 17:41:05,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 0 states have call successors, (0), 0 states 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 17:41:05,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:05,590 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:05,590 INFO L175 Difference]: Start difference. First operand has 83 places, 168 transitions, 1357 flow. Second operand 6 states and 612 transitions. [2023-08-29 17:41:05,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 199 transitions, 1637 flow [2023-08-29 17:41:05,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 199 transitions, 1569 flow, removed 34 selfloop flow, removed 0 redundant places. [2023-08-29 17:41:05,610 INFO L231 Difference]: Finished difference. Result has 90 places, 168 transitions, 1312 flow [2023-08-29 17:41:05,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=1289, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1312, PETRI_PLACES=90, PETRI_TRANSITIONS=168} [2023-08-29 17:41:05,611 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 43 predicate places. [2023-08-29 17:41:05,611 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 168 transitions, 1312 flow [2023-08-29 17:41:05,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 0 states have call successors, (0), 0 states 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 17:41:05,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:05,612 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:41:05,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:41:05,613 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:41:05,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:05,613 INFO L85 PathProgramCache]: Analyzing trace with hash 971988094, now seen corresponding path program 2 times [2023-08-29 17:41:05,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:05,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703843984] [2023-08-29 17:41:05,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:05,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:06,048 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 17:41:06,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:06,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703843984] [2023-08-29 17:41:06,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703843984] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:06,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:06,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:41:06,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582643872] [2023-08-29 17:41:06,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:06,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:41:06,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:06,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:41:06,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:41:06,175 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 178 [2023-08-29 17:41:06,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 168 transitions, 1312 flow. Second operand has 6 states, 6 states have (on average 93.83333333333333) internal successors, (563), 6 states have internal predecessors, (563), 0 states have call successors, (0), 0 states 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 17:41:06,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:06,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 178 [2023-08-29 17:41:06,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:06,373 INFO L130 PetriNetUnfolder]: 292/793 cut-off events. [2023-08-29 17:41:06,374 INFO L131 PetriNetUnfolder]: For 1800/1827 co-relation queries the response was YES. [2023-08-29 17:41:06,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3202 conditions, 793 events. 292/793 cut-off events. For 1800/1827 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4480 event pairs, 26 based on Foata normal form. 7/799 useless extension candidates. Maximal degree in co-relation 3176. Up to 191 conditions per place. [2023-08-29 17:41:06,380 INFO L137 encePairwiseOnDemand]: 171/178 looper letters, 35 selfloop transitions, 7 changer transitions 21/195 dead transitions. [2023-08-29 17:41:06,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 195 transitions, 1580 flow [2023-08-29 17:41:06,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:41:06,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:41:06,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 592 transitions. [2023-08-29 17:41:06,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5543071161048689 [2023-08-29 17:41:06,382 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 592 transitions. [2023-08-29 17:41:06,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 592 transitions. [2023-08-29 17:41:06,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:06,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 592 transitions. [2023-08-29 17:41:06,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 0 states have call successors, (0), 0 states 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 17:41:06,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:06,385 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:06,386 INFO L175 Difference]: Start difference. First operand has 90 places, 168 transitions, 1312 flow. Second operand 6 states and 592 transitions. [2023-08-29 17:41:06,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 195 transitions, 1580 flow [2023-08-29 17:41:06,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 195 transitions, 1561 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-29 17:41:06,401 INFO L231 Difference]: Finished difference. Result has 92 places, 168 transitions, 1324 flow [2023-08-29 17:41:06,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=1301, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1324, PETRI_PLACES=92, PETRI_TRANSITIONS=168} [2023-08-29 17:41:06,402 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 45 predicate places. [2023-08-29 17:41:06,402 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 168 transitions, 1324 flow [2023-08-29 17:41:06,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.83333333333333) internal successors, (563), 6 states have internal predecessors, (563), 0 states have call successors, (0), 0 states 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 17:41:06,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:06,402 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:41:06,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 17:41:06,402 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:41:06,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:06,403 INFO L85 PathProgramCache]: Analyzing trace with hash -2086884163, now seen corresponding path program 1 times [2023-08-29 17:41:06,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:06,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534837866] [2023-08-29 17:41:06,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:06,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:06,698 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 17:41:06,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:06,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534837866] [2023-08-29 17:41:06,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534837866] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:06,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:06,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:41:06,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346211503] [2023-08-29 17:41:06,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:06,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:41:06,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:06,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:41:06,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:41:06,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 178 [2023-08-29 17:41:06,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 168 transitions, 1324 flow. Second operand has 6 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 0 states have call successors, (0), 0 states 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 17:41:06,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:06,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 178 [2023-08-29 17:41:06,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:06,928 INFO L130 PetriNetUnfolder]: 286/795 cut-off events. [2023-08-29 17:41:06,929 INFO L131 PetriNetUnfolder]: For 2042/2065 co-relation queries the response was YES. [2023-08-29 17:41:06,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3298 conditions, 795 events. 286/795 cut-off events. For 2042/2065 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4489 event pairs, 36 based on Foata normal form. 11/802 useless extension candidates. Maximal degree in co-relation 3271. Up to 278 conditions per place. [2023-08-29 17:41:06,935 INFO L137 encePairwiseOnDemand]: 173/178 looper letters, 34 selfloop transitions, 2 changer transitions 15/183 dead transitions. [2023-08-29 17:41:06,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 183 transitions, 1494 flow [2023-08-29 17:41:06,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:41:06,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:41:06,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 604 transitions. [2023-08-29 17:41:06,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5655430711610487 [2023-08-29 17:41:06,938 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 604 transitions. [2023-08-29 17:41:06,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 604 transitions. [2023-08-29 17:41:06,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:06,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 604 transitions. [2023-08-29 17:41:06,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 0 states have call successors, (0), 0 states 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 17:41:06,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:06,942 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:06,942 INFO L175 Difference]: Start difference. First operand has 92 places, 168 transitions, 1324 flow. Second operand 6 states and 604 transitions. [2023-08-29 17:41:06,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 183 transitions, 1494 flow [2023-08-29 17:41:06,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 183 transitions, 1477 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-29 17:41:06,978 INFO L231 Difference]: Finished difference. Result has 95 places, 168 transitions, 1328 flow [2023-08-29 17:41:06,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=1313, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1328, PETRI_PLACES=95, PETRI_TRANSITIONS=168} [2023-08-29 17:41:06,979 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 48 predicate places. [2023-08-29 17:41:06,980 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 168 transitions, 1328 flow [2023-08-29 17:41:06,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 0 states have call successors, (0), 0 states 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 17:41:06,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:06,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:41:06,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 17:41:06,981 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:41:06,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:06,982 INFO L85 PathProgramCache]: Analyzing trace with hash 2103954046, now seen corresponding path program 3 times [2023-08-29 17:41:06,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:06,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504203494] [2023-08-29 17:41:06,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:06,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:07,253 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 17:41:07,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:07,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504203494] [2023-08-29 17:41:07,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504203494] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:07,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:07,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:41:07,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977548553] [2023-08-29 17:41:07,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:07,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:41:07,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:07,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:41:07,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:41:07,340 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 178 [2023-08-29 17:41:07,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 168 transitions, 1328 flow. Second operand has 6 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 0 states have call successors, (0), 0 states 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 17:41:07,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:07,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 178 [2023-08-29 17:41:07,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:07,415 INFO L130 PetriNetUnfolder]: 12/100 cut-off events. [2023-08-29 17:41:07,415 INFO L131 PetriNetUnfolder]: For 223/223 co-relation queries the response was YES. [2023-08-29 17:41:07,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 100 events. 12/100 cut-off events. For 223/223 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 360 event pairs, 7 based on Foata normal form. 9/109 useless extension candidates. Maximal degree in co-relation 373. Up to 24 conditions per place. [2023-08-29 17:41:07,415 INFO L137 encePairwiseOnDemand]: 173/178 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2023-08-29 17:41:07,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 43 transitions, 329 flow [2023-08-29 17:41:07,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:41:07,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:41:07,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 598 transitions. [2023-08-29 17:41:07,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5599250936329588 [2023-08-29 17:41:07,418 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 598 transitions. [2023-08-29 17:41:07,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 598 transitions. [2023-08-29 17:41:07,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:07,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 598 transitions. [2023-08-29 17:41:07,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.66666666666667) internal successors, (598), 6 states have internal predecessors, (598), 0 states have call successors, (0), 0 states 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 17:41:07,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:07,421 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 17:41:07,422 INFO L175 Difference]: Start difference. First operand has 95 places, 168 transitions, 1328 flow. Second operand 6 states and 598 transitions. [2023-08-29 17:41:07,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 43 transitions, 329 flow [2023-08-29 17:41:07,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 43 transitions, 167 flow, removed 39 selfloop flow, removed 42 redundant places. [2023-08-29 17:41:07,425 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2023-08-29 17:41:07,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2023-08-29 17:41:07,426 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 3 predicate places. [2023-08-29 17:41:07,426 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 0 transitions, 0 flow [2023-08-29 17:41:07,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 0 states have call successors, (0), 0 states 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 17:41:07,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2023-08-29 17:41:07,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2023-08-29 17:41:07,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2023-08-29 17:41:07,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2023-08-29 17:41:07,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2023-08-29 17:41:07,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2023-08-29 17:41:07,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2023-08-29 17:41:07,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2023-08-29 17:41:07,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2023-08-29 17:41:07,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2023-08-29 17:41:07,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2023-08-29 17:41:07,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2023-08-29 17:41:07,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2023-08-29 17:41:07,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 17:41:07,430 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:41:07,435 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:41:07,435 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:41:07,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:41:07 BasicIcfg [2023-08-29 17:41:07,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:41:07,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:41:07,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:41:07,438 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:41:07,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:40:59" (3/4) ... [2023-08-29 17:41:07,440 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 17:41:07,446 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 17:41:07,451 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-08-29 17:41:07,451 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 17:41:07,451 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 17:41:07,477 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 17:41:07,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:41:07,478 INFO L158 Benchmark]: Toolchain (without parser) took 9683.90ms. Allocated memory was 81.8MB in the beginning and 209.7MB in the end (delta: 127.9MB). Free memory was 56.5MB in the beginning and 61.1MB in the end (delta: -4.6MB). Peak memory consumption was 124.0MB. Max. memory is 16.1GB. [2023-08-29 17:41:07,478 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 67.1MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:41:07,479 INFO L158 Benchmark]: CACSL2BoogieTranslator took 820.56ms. Allocated memory is still 81.8MB. Free memory was 56.3MB in the beginning and 58.0MB in the end (delta: -1.6MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2023-08-29 17:41:07,479 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.65ms. Allocated memory is still 81.8MB. Free memory was 58.0MB in the beginning and 55.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:41:07,479 INFO L158 Benchmark]: Boogie Preprocessor took 38.52ms. Allocated memory is still 81.8MB. Free memory was 55.2MB in the beginning and 53.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:41:07,479 INFO L158 Benchmark]: RCFGBuilder took 432.27ms. Allocated memory is still 81.8MB. Free memory was 53.1MB in the beginning and 37.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-29 17:41:07,480 INFO L158 Benchmark]: TraceAbstraction took 8288.51ms. Allocated memory was 81.8MB in the beginning and 209.7MB in the end (delta: 127.9MB). Free memory was 36.3MB in the beginning and 64.2MB in the end (delta: -27.9MB). Peak memory consumption was 100.3MB. Max. memory is 16.1GB. [2023-08-29 17:41:07,480 INFO L158 Benchmark]: Witness Printer took 39.75ms. Allocated memory is still 209.7MB. Free memory was 64.2MB in the beginning and 61.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:41:07,481 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 67.1MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 820.56ms. Allocated memory is still 81.8MB. Free memory was 56.3MB in the beginning and 58.0MB in the end (delta: -1.6MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.65ms. Allocated memory is still 81.8MB. Free memory was 58.0MB in the beginning and 55.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.52ms. Allocated memory is still 81.8MB. Free memory was 55.2MB in the beginning and 53.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 432.27ms. Allocated memory is still 81.8MB. Free memory was 53.1MB in the beginning and 37.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8288.51ms. Allocated memory was 81.8MB in the beginning and 209.7MB in the end (delta: 127.9MB). Free memory was 36.3MB in the beginning and 64.2MB in the end (delta: -27.9MB). Peak memory consumption was 100.3MB. Max. memory is 16.1GB. * Witness Printer took 39.75ms. Allocated memory is still 209.7MB. Free memory was 64.2MB in the beginning and 61.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 108 PlacesBefore, 47 PlacesAfterwards, 104 TransitionsBefore, 43 TransitionsAfterwards, 2304 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 73 TotalNumberOfCompositions, 12387 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3722, independent: 3178, independent conditional: 0, independent unconditional: 3178, dependent: 544, dependent conditional: 0, dependent unconditional: 544, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1042, independent: 985, independent conditional: 0, independent unconditional: 985, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3722, independent: 2193, independent conditional: 0, independent unconditional: 2193, dependent: 487, dependent conditional: 0, dependent unconditional: 487, unknown: 1042, unknown conditional: 0, unknown unconditional: 1042] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1244]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1245]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1229]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1247]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1235]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1235]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1239]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1235]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1235]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 140 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1130 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 787 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 115 mSDsCounter, 104 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2139 IncrementalHoareTripleChecker+Invalid, 2243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 104 mSolverCounterUnsat, 15 mSDtfsCounter, 2139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1357occurred in iteration=6, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 873 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 17:41:07,499 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