./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_28-list2alloc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_28-list2alloc.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 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:35:32,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:35:32,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:35:32,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:35:32,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:35:32,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:35:32,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:35:32,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:35:32,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:35:32,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:35:32,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:35:32,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:35:32,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:35:32,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:35:32,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:35:32,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:35:32,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:35:32,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:35:32,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:35:32,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:35:32,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:35:32,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:35:32,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:35:32,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:35:32,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:35:32,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:35:32,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:35:32,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:35:32,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:35:32,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:35:32,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:35:32,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:35:32,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:35:32,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:35:32,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:35:32,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:35:32,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:35:32,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:35:32,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:35:32,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:35:32,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:35:32,872 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:35:32,894 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:35:32,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:35:32,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:35:32,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:35:32,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:35:32,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:35:32,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:35:32,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:35:32,896 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:35:32,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:35:32,897 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:35:32,897 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:35:32,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:35:32,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:35:32,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:35:32,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:35:32,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:35:32,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:35:32,898 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:35:32,898 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:35:32,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:35:32,899 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:35:32,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:35:32,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:35:32,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:35:32,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:35:32,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:35:32,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:35:32,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:35:32,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:35:32,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:35:32,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:35:32,901 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:35:32,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:35:32,901 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:35:32,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:35:32,902 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:35:32,902 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:35:33,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:35:33,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:35:33,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:35:33,220 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:35:33,222 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:35:33,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_28-list2alloc.i [2023-08-29 02:35:34,536 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:35:34,840 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:35:34,841 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_28-list2alloc.i [2023-08-29 02:35:34,867 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e81282ec/13f1bb1c807d4dbc9cdb1a6e13ed881d/FLAG282265952 [2023-08-29 02:35:34,879 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e81282ec/13f1bb1c807d4dbc9cdb1a6e13ed881d [2023-08-29 02:35:34,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:35:34,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:35:34,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:35:34,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:35:34,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:35:34,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:35:34" (1/1) ... [2023-08-29 02:35:34,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41f7d34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:35:34, skipping insertion in model container [2023-08-29 02:35:34,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:35:34" (1/1) ... [2023-08-29 02:35:34,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:35:34,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:35:35,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:35:35,440 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:35:35,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:35:35,564 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:35:35,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:35:35 WrapperNode [2023-08-29 02:35:35,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:35:35,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:35:35,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:35:35,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:35:35,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:35:35" (1/1) ... [2023-08-29 02:35:35,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:35:35" (1/1) ... [2023-08-29 02:35:35,637 INFO L138 Inliner]: procedures = 368, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2023-08-29 02:35:35,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:35:35,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:35:35,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:35:35,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:35:35,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:35:35" (1/1) ... [2023-08-29 02:35:35,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:35:35" (1/1) ... [2023-08-29 02:35:35,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:35:35" (1/1) ... [2023-08-29 02:35:35,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:35:35" (1/1) ... [2023-08-29 02:35:35,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:35:35" (1/1) ... [2023-08-29 02:35:35,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:35:35" (1/1) ... [2023-08-29 02:35:35,706 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:35:35" (1/1) ... [2023-08-29 02:35:35,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:35:35" (1/1) ... [2023-08-29 02:35:35,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:35:35,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:35:35,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:35:35,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:35:35,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:35:35" (1/1) ... [2023-08-29 02:35:35,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:35:35,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:35:35,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 02:35:35,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 02:35:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:35:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:35:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:35:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:35:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:35:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 02:35:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:35:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 02:35:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:35:35,792 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:35:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 02:35:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:35:35,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:35:35,794 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 02:35:35,957 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:35:35,967 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:35:36,255 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:35:36,263 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:35:36,264 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 02:35:36,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:35:36 BoogieIcfgContainer [2023-08-29 02:35:36,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:35:36,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:35:36,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:35:36,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:35:36,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:35:34" (1/3) ... [2023-08-29 02:35:36,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f70282d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:35:36, skipping insertion in model container [2023-08-29 02:35:36,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:35:35" (2/3) ... [2023-08-29 02:35:36,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f70282d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:35:36, skipping insertion in model container [2023-08-29 02:35:36,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:35:36" (3/3) ... [2023-08-29 02:35:36,273 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_28-list2alloc.i [2023-08-29 02:35:36,280 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:35:36,288 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:35:36,289 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-29 02:35:36,289 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:35:36,355 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:35:36,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 172 transitions, 349 flow [2023-08-29 02:35:36,442 INFO L130 PetriNetUnfolder]: 0/171 cut-off events. [2023-08-29 02:35:36,442 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:35:36,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 171 events. 0/171 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 02:35:36,445 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 172 transitions, 349 flow [2023-08-29 02:35:36,450 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 171 transitions, 345 flow [2023-08-29 02:35:36,453 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:35:36,460 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 171 transitions, 345 flow [2023-08-29 02:35:36,463 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 171 transitions, 345 flow [2023-08-29 02:35:36,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 171 transitions, 345 flow [2023-08-29 02:35:36,502 INFO L130 PetriNetUnfolder]: 0/171 cut-off events. [2023-08-29 02:35:36,504 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:35:36,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 171 events. 0/171 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 02:35:36,507 INFO L119 LiptonReduction]: Number of co-enabled transitions 2544 [2023-08-29 02:35:54,705 WARN L222 SmtUtils]: Spent 9.62s on a formula simplification. DAG size of input: 145 DAG size of output: 136 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:36:08,572 WARN L222 SmtUtils]: Spent 9.55s on a formula simplification. DAG size of input: 145 DAG size of output: 136 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:36:25,075 WARN L222 SmtUtils]: Spent 9.08s on a formula simplification that was a NOOP. DAG size: 221 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:36:34,377 WARN L222 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 246 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:36:46,023 WARN L222 SmtUtils]: Spent 11.64s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:37:02,955 WARN L222 SmtUtils]: Spent 16.93s on a formula simplification that was a NOOP. DAG size: 246 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:37:13,606 WARN L222 SmtUtils]: Spent 10.65s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:37:13,610 INFO L134 LiptonReduction]: Checked pairs total: 17799 [2023-08-29 02:37:13,610 INFO L136 LiptonReduction]: Total number of compositions: 140 [2023-08-29 02:37:13,623 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:37:13,627 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;@111e124c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:37:13,628 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-08-29 02:37:13,629 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 02:37:13,630 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:37:13,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:37:13,630 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 02:37:13,631 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-29 02:37:13,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:37:13,636 INFO L85 PathProgramCache]: Analyzing trace with hash 567, now seen corresponding path program 1 times [2023-08-29 02:37:13,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:37:13,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784126487] [2023-08-29 02:37:13,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:37:13,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:37:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:37:13,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:37:13,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:37:13,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784126487] [2023-08-29 02:37:13,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784126487] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:37:13,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:37:13,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 02:37:13,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234969195] [2023-08-29 02:37:13,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:37:13,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 02:37:13,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:37:13,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 02:37:13,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 02:37:13,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 312 [2023-08-29 02:37:13,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 115 flow. Second operand has 2 states, 2 states have (on average 171.5) internal successors, (343), 2 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:13,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:37:13,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 312 [2023-08-29 02:37:13,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:37:13,914 INFO L130 PetriNetUnfolder]: 60/273 cut-off events. [2023-08-29 02:37:13,914 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:37:13,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 273 events. 60/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1125 event pairs, 60 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 408. Up to 140 conditions per place. [2023-08-29 02:37:13,920 INFO L137 encePairwiseOnDemand]: 305/312 looper letters, 19 selfloop transitions, 0 changer transitions 0/49 dead transitions. [2023-08-29 02:37:13,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 49 transitions, 139 flow [2023-08-29 02:37:13,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 02:37:13,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 02:37:13,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 368 transitions. [2023-08-29 02:37:13,940 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5897435897435898 [2023-08-29 02:37:13,941 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 368 transitions. [2023-08-29 02:37:13,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 368 transitions. [2023-08-29 02:37:13,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:37:13,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 368 transitions. [2023-08-29 02:37:13,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 184.0) internal successors, (368), 2 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:13,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:13,957 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:13,959 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 115 flow. Second operand 2 states and 368 transitions. [2023-08-29 02:37:13,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 49 transitions, 139 flow [2023-08-29 02:37:13,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 49 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:37:13,963 INFO L231 Difference]: Finished difference. Result has 53 places, 49 transitions, 100 flow [2023-08-29 02:37:13,965 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=100, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2023-08-29 02:37:13,970 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -7 predicate places. [2023-08-29 02:37:13,971 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 100 flow [2023-08-29 02:37:13,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 171.5) internal successors, (343), 2 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:13,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:37:13,974 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 02:37:13,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:37:13,975 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-29 02:37:13,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:37:13,977 INFO L85 PathProgramCache]: Analyzing trace with hash 539660998, now seen corresponding path program 1 times [2023-08-29 02:37:13,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:37:13,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754626142] [2023-08-29 02:37:13,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:37:13,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:37:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:37:14,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:37:14,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:37:14,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754626142] [2023-08-29 02:37:14,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754626142] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:37:14,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:37:14,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:37:14,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100252674] [2023-08-29 02:37:14,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:37:14,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:37:14,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:37:14,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:37:14,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:37:14,245 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 312 [2023-08-29 02:37:14,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:14,246 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:37:14,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 312 [2023-08-29 02:37:14,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:37:14,329 INFO L130 PetriNetUnfolder]: 78/319 cut-off events. [2023-08-29 02:37:14,330 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:37:14,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 319 events. 78/319 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1326 event pairs, 56 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 498. Up to 171 conditions per place. [2023-08-29 02:37:14,332 INFO L137 encePairwiseOnDemand]: 308/312 looper letters, 23 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2023-08-29 02:37:14,332 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 51 transitions, 154 flow [2023-08-29 02:37:14,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:37:14,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:37:14,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 519 transitions. [2023-08-29 02:37:14,334 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5544871794871795 [2023-08-29 02:37:14,334 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 519 transitions. [2023-08-29 02:37:14,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 519 transitions. [2023-08-29 02:37:14,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:37:14,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 519 transitions. [2023-08-29 02:37:14,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:14,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:14,339 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:14,339 INFO L175 Difference]: Start difference. First operand has 53 places, 49 transitions, 100 flow. Second operand 3 states and 519 transitions. [2023-08-29 02:37:14,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 51 transitions, 154 flow [2023-08-29 02:37:14,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 51 transitions, 154 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:37:14,340 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 110 flow [2023-08-29 02:37:14,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2023-08-29 02:37:14,341 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2023-08-29 02:37:14,342 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 110 flow [2023-08-29 02:37:14,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:14,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:37:14,342 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:37:14,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:37:14,343 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-29 02:37:14,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:37:14,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1305759350, now seen corresponding path program 1 times [2023-08-29 02:37:14,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:37:14,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405520126] [2023-08-29 02:37:14,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:37:14,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:37:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:37:14,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:37:14,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:37:14,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405520126] [2023-08-29 02:37:14,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405520126] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:37:14,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:37:14,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:37:14,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208293933] [2023-08-29 02:37:14,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:37:14,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:37:14,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:37:14,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:37:14,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:37:15,023 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 312 [2023-08-29 02:37:15,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:15,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:37:15,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 312 [2023-08-29 02:37:15,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:37:15,187 INFO L130 PetriNetUnfolder]: 212/558 cut-off events. [2023-08-29 02:37:15,187 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-08-29 02:37:15,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 558 events. 212/558 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2392 event pairs, 130 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 1061. Up to 382 conditions per place. [2023-08-29 02:37:15,191 INFO L137 encePairwiseOnDemand]: 301/312 looper letters, 52 selfloop transitions, 22 changer transitions 0/87 dead transitions. [2023-08-29 02:37:15,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 87 transitions, 342 flow [2023-08-29 02:37:15,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:37:15,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:37:15,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 877 transitions. [2023-08-29 02:37:15,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.468482905982906 [2023-08-29 02:37:15,194 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 877 transitions. [2023-08-29 02:37:15,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 877 transitions. [2023-08-29 02:37:15,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:37:15,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 877 transitions. [2023-08-29 02:37:15,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.16666666666666) internal successors, (877), 6 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:15,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:15,201 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:15,201 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 110 flow. Second operand 6 states and 877 transitions. [2023-08-29 02:37:15,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 87 transitions, 342 flow [2023-08-29 02:37:15,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 87 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:37:15,204 INFO L231 Difference]: Finished difference. Result has 64 places, 70 transitions, 260 flow [2023-08-29 02:37:15,204 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=260, PETRI_PLACES=64, PETRI_TRANSITIONS=70} [2023-08-29 02:37:15,205 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2023-08-29 02:37:15,205 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 70 transitions, 260 flow [2023-08-29 02:37:15,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:15,206 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:37:15,206 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:37:15,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:37:15,206 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-29 02:37:15,207 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:37:15,207 INFO L85 PathProgramCache]: Analyzing trace with hash -163821742, now seen corresponding path program 1 times [2023-08-29 02:37:15,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:37:15,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532298251] [2023-08-29 02:37:15,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:37:15,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:37:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:37:15,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:37:15,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:37:15,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532298251] [2023-08-29 02:37:15,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532298251] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:37:15,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:37:15,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:37:15,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191513035] [2023-08-29 02:37:15,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:37:15,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:37:15,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:37:15,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:37:15,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:37:15,643 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 312 [2023-08-29 02:37:15,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 70 transitions, 260 flow. Second operand has 6 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:15,644 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:37:15,644 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 312 [2023-08-29 02:37:15,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:37:16,008 INFO L130 PetriNetUnfolder]: 371/844 cut-off events. [2023-08-29 02:37:16,008 INFO L131 PetriNetUnfolder]: For 242/246 co-relation queries the response was YES. [2023-08-29 02:37:16,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2103 conditions, 844 events. 371/844 cut-off events. For 242/246 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3784 event pairs, 116 based on Foata normal form. 0/812 useless extension candidates. Maximal degree in co-relation 2094. Up to 625 conditions per place. [2023-08-29 02:37:16,013 INFO L137 encePairwiseOnDemand]: 290/312 looper letters, 92 selfloop transitions, 80 changer transitions 8/189 dead transitions. [2023-08-29 02:37:16,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 189 transitions, 964 flow [2023-08-29 02:37:16,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:37:16,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:37:16,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 919 transitions. [2023-08-29 02:37:16,019 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4909188034188034 [2023-08-29 02:37:16,019 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 919 transitions. [2023-08-29 02:37:16,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 919 transitions. [2023-08-29 02:37:16,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:37:16,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 919 transitions. [2023-08-29 02:37:16,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 153.16666666666666) internal successors, (919), 6 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:16,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:16,026 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:16,027 INFO L175 Difference]: Start difference. First operand has 64 places, 70 transitions, 260 flow. Second operand 6 states and 919 transitions. [2023-08-29 02:37:16,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 189 transitions, 964 flow [2023-08-29 02:37:16,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 189 transitions, 964 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:37:16,036 INFO L231 Difference]: Finished difference. Result has 73 places, 145 transitions, 788 flow [2023-08-29 02:37:16,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=788, PETRI_PLACES=73, PETRI_TRANSITIONS=145} [2023-08-29 02:37:16,038 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 13 predicate places. [2023-08-29 02:37:16,038 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 145 transitions, 788 flow [2023-08-29 02:37:16,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:16,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:37:16,039 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 02:37:16,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 02:37:16,040 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-29 02:37:16,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:37:16,040 INFO L85 PathProgramCache]: Analyzing trace with hash -613171814, now seen corresponding path program 1 times [2023-08-29 02:37:16,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:37:16,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196978923] [2023-08-29 02:37:16,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:37:16,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:37:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:37:16,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:37:16,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:37:16,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196978923] [2023-08-29 02:37:16,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196978923] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:37:16,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:37:16,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 02:37:16,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766780710] [2023-08-29 02:37:16,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:37:16,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:37:16,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:37:16,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:37:16,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:37:16,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 312 [2023-08-29 02:37:16,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 145 transitions, 788 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:16,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:37:16,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 312 [2023-08-29 02:37:16,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:37:16,307 INFO L130 PetriNetUnfolder]: 217/610 cut-off events. [2023-08-29 02:37:16,307 INFO L131 PetriNetUnfolder]: For 403/427 co-relation queries the response was YES. [2023-08-29 02:37:16,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1750 conditions, 610 events. 217/610 cut-off events. For 403/427 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2914 event pairs, 27 based on Foata normal form. 7/607 useless extension candidates. Maximal degree in co-relation 1736. Up to 206 conditions per place. [2023-08-29 02:37:16,312 INFO L137 encePairwiseOnDemand]: 307/312 looper letters, 34 selfloop transitions, 4 changer transitions 4/156 dead transitions. [2023-08-29 02:37:16,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 156 transitions, 908 flow [2023-08-29 02:37:16,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:37:16,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:37:16,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2023-08-29 02:37:16,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.561965811965812 [2023-08-29 02:37:16,314 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions. [2023-08-29 02:37:16,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions. [2023-08-29 02:37:16,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:37:16,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions. [2023-08-29 02:37:16,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:16,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:16,318 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:16,318 INFO L175 Difference]: Start difference. First operand has 73 places, 145 transitions, 788 flow. Second operand 3 states and 526 transitions. [2023-08-29 02:37:16,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 156 transitions, 908 flow [2023-08-29 02:37:16,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 156 transitions, 884 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-08-29 02:37:16,325 INFO L231 Difference]: Finished difference. Result has 76 places, 145 transitions, 778 flow [2023-08-29 02:37:16,325 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=778, PETRI_PLACES=76, PETRI_TRANSITIONS=145} [2023-08-29 02:37:16,326 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 16 predicate places. [2023-08-29 02:37:16,326 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 145 transitions, 778 flow [2023-08-29 02:37:16,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:37:16,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:37:16,327 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 02:37:16,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:37:16,327 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-29 02:37:16,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:37:16,328 INFO L85 PathProgramCache]: Analyzing trace with hash 178969448, now seen corresponding path program 2 times [2023-08-29 02:37:16,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:37:16,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178716979] [2023-08-29 02:37:16,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:37:16,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:37:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:37:16,361 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 02:37:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:37:16,399 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 02:37:16,399 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 02:37:16,400 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2023-08-29 02:37:16,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2023-08-29 02:37:16,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2023-08-29 02:37:16,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2023-08-29 02:37:16,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2023-08-29 02:37:16,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2023-08-29 02:37:16,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2023-08-29 02:37:16,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2023-08-29 02:37:16,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2023-08-29 02:37:16,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 21 remaining) [2023-08-29 02:37:16,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2023-08-29 02:37:16,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2023-08-29 02:37:16,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2023-08-29 02:37:16,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2023-08-29 02:37:16,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2023-08-29 02:37:16,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2023-08-29 02:37:16,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2023-08-29 02:37:16,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2023-08-29 02:37:16,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2023-08-29 02:37:16,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2023-08-29 02:37:16,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2023-08-29 02:37:16,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:37:16,406 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-08-29 02:37:16,411 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 02:37:16,411 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 02:37:16,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 02:37:16 BasicIcfg [2023-08-29 02:37:16,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 02:37:16,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 02:37:16,445 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 02:37:16,445 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 02:37:16,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:35:36" (3/4) ... [2023-08-29 02:37:16,448 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 02:37:16,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 02:37:16,449 INFO L158 Benchmark]: Toolchain (without parser) took 101566.88ms. Allocated memory was 73.4MB in the beginning and 111.1MB in the end (delta: 37.7MB). Free memory was 48.4MB in the beginning and 41.8MB in the end (delta: 6.6MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. [2023-08-29 02:37:16,451 INFO L158 Benchmark]: CDTParser took 3.31ms. Allocated memory is still 73.4MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:37:16,452 INFO L158 Benchmark]: CACSL2BoogieTranslator took 682.35ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 48.2MB in the beginning and 46.4MB in the end (delta: 1.8MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-08-29 02:37:16,452 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.53ms. Allocated memory is still 92.3MB. Free memory was 46.4MB in the beginning and 43.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:37:16,453 INFO L158 Benchmark]: Boogie Preprocessor took 79.06ms. Allocated memory is still 92.3MB. Free memory was 43.6MB in the beginning and 68.8MB in the end (delta: -25.1MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2023-08-29 02:37:16,453 INFO L158 Benchmark]: RCFGBuilder took 547.62ms. Allocated memory is still 92.3MB. Free memory was 68.8MB in the beginning and 46.9MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-29 02:37:16,455 INFO L158 Benchmark]: TraceAbstraction took 100176.86ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 46.1MB in the beginning and 41.8MB in the end (delta: 4.4MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2023-08-29 02:37:16,455 INFO L158 Benchmark]: Witness Printer took 3.50ms. Allocated memory is still 111.1MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:37:16,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.31ms. Allocated memory is still 73.4MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 682.35ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 48.2MB in the beginning and 46.4MB in the end (delta: 1.8MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.53ms. Allocated memory is still 92.3MB. Free memory was 46.4MB in the beginning and 43.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.06ms. Allocated memory is still 92.3MB. Free memory was 43.6MB in the beginning and 68.8MB in the end (delta: -25.1MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * RCFGBuilder took 547.62ms. Allocated memory is still 92.3MB. Free memory was 68.8MB in the beginning and 46.9MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 100176.86ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 46.1MB in the beginning and 41.8MB in the end (delta: 4.4MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * Witness Printer took 3.50ms. Allocated memory is still 111.1MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 97.1s, 175 PlacesBefore, 60 PlacesAfterwards, 171 TransitionsBefore, 56 TransitionsAfterwards, 2544 CoEnabledTransitionPairs, 9 FixpointIterations, 109 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 140 TotalNumberOfCompositions, 17799 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4147, independent: 3268, independent conditional: 0, independent unconditional: 3268, dependent: 879, dependent conditional: 0, dependent unconditional: 879, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1148, independent: 1047, independent conditional: 0, independent unconditional: 1047, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4147, independent: 2221, independent conditional: 0, independent unconditional: 2221, dependent: 778, dependent conditional: 0, dependent unconditional: 778, unknown: 1148, unknown conditional: 0, unknown unconditional: 1148] , Statistics on independence cache: Total cache size (in pairs): 191, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, Negative cache size: 62, Negative conditional cache size: 0, Negative unconditional cache size: 62, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1237]: Data race detected Data race detected The following path leads to a data race: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A, *B; [L1233] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1234] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1245] 0 pthread_t t1; [L1246] CALL, EXPR 0 new(3) [L1228] 0 struct s *p = malloc(sizeof(struct s)); [L1229] 0 p->datum = x [L1230] 0 p->next = ((void *)0) [L1231] 0 return p; [L1246] RET, EXPR 0 new(3) [L1246] 0 A = new(3) [L1247] CALL, EXPR 0 new(5) [L1228] 0 struct s *p = malloc(sizeof(struct s)); [L1229] 0 p->datum = x [L1230] 0 p->next = ((void *)0) [L1231] 0 return p; [L1247] RET, EXPR 0 new(5) [L1247] 0 B = new(5) [L1248] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={9:0}] [L1249] 0 int *data; [L1251] EXPR 0 A->datum VAL [A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, t1={9:0}] [L1251] 0 data = &A->datum [L1237] EXPR 1 A->datum VAL [A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1237] 1 A->datum++ VAL [A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1253] 0 *data = 42 VAL [*data = 42=52, A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}, data={-3:0}, t1={9:0}] [L1237] 1 A->datum++ VAL [A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: p->datum = x [1229] * C: *data = 42 [1253] * C: p->datum = x [1229] * C: A = new(3) [1246] * C: B = new(5) [1247] * C: p->next = ((void *)0) [1230] * C: p->next = ((void *)0) [1230] * C: p->next = ((void *)0) [1230] * C: p->datum = x [1229] * C: p->datum = x [1229] * C: p->next = ((void *)0) [1230] and C: A->datum++ [1237] - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1247]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 228 locations, 21 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: 100.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 97.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 368 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 817 IncrementalHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 21 mSDtfsCounter, 817 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=788occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 211 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-29 02:37:16,525 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE