./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 BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/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 BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 20:35:09,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 20:35:09,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 20:35:09,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 20:35:09,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 20:35:09,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 20:35:09,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 20:35:09,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 20:35:09,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 20:35:09,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 20:35:09,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 20:35:09,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 20:35:09,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 20:35:09,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 20:35:09,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 20:35:09,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 20:35:09,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 20:35:09,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 20:35:09,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 20:35:09,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 20:35:09,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 20:35:09,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 20:35:09,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 20:35:09,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 20:35:09,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 20:35:09,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 20:35:09,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 20:35:09,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 20:35:09,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 20:35:09,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 20:35:09,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 20:35:09,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 20:35:09,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 20:35:09,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 20:35:09,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 20:35:09,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 20:35:09,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 20:35:09,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 20:35:09,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 20:35:09,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 20:35:09,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 20:35:09,184 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 20:35:09,226 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 20:35:09,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 20:35:09,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 20:35:09,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 20:35:09,228 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 20:35:09,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 20:35:09,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 20:35:09,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 20:35:09,229 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 20:35:09,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 20:35:09,231 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 20:35:09,231 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 20:35:09,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 20:35:09,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 20:35:09,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 20:35:09,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 20:35:09,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 20:35:09,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 20:35:09,232 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 20:35:09,232 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 20:35:09,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 20:35:09,233 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 20:35:09,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 20:35:09,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 20:35:09,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 20:35:09,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 20:35:09,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:35:09,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 20:35:09,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 20:35:09,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 20:35:09,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 20:35:09,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 20:35:09,235 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 20:35:09,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 20:35:09,235 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 20:35:09,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 20:35:09,236 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 20:35:09,236 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 20:35:09,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 20:35:09,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 20:35:09,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 20:35:09,538 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 20:35:09,540 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 20:35:09,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_28-list2alloc.i [2023-08-31 20:35:10,733 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 20:35:11,012 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 20:35:11,012 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_28-list2alloc.i [2023-08-31 20:35:11,035 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25022b230/da825db445204de9a95110abe142d282/FLAG530438c25 [2023-08-31 20:35:11,052 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25022b230/da825db445204de9a95110abe142d282 [2023-08-31 20:35:11,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 20:35:11,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 20:35:11,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 20:35:11,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 20:35:11,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 20:35:11,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:35:11" (1/1) ... [2023-08-31 20:35:11,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@576a69e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:35:11, skipping insertion in model container [2023-08-31 20:35:11,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:35:11" (1/1) ... [2023-08-31 20:35:11,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 20:35:11,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 20:35:11,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:35:11,530 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 20:35:11,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:35:11,661 INFO L208 MainTranslator]: Completed translation [2023-08-31 20:35:11,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:35:11 WrapperNode [2023-08-31 20:35:11,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 20:35:11,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 20:35:11,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 20:35:11,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 20:35:11,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:35:11" (1/1) ... [2023-08-31 20:35:11,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:35:11" (1/1) ... [2023-08-31 20:35:11,718 INFO L138 Inliner]: procedures = 368, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2023-08-31 20:35:11,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 20:35:11,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 20:35:11,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 20:35:11,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 20:35:11,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:35:11" (1/1) ... [2023-08-31 20:35:11,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:35:11" (1/1) ... [2023-08-31 20:35:11,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:35:11" (1/1) ... [2023-08-31 20:35:11,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:35:11" (1/1) ... [2023-08-31 20:35:11,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:35:11" (1/1) ... [2023-08-31 20:35:11,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:35:11" (1/1) ... [2023-08-31 20:35:11,748 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:35:11" (1/1) ... [2023-08-31 20:35:11,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:35:11" (1/1) ... [2023-08-31 20:35:11,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 20:35:11,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 20:35:11,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 20:35:11,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 20:35:11,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:35:11" (1/1) ... [2023-08-31 20:35:11,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:35:11,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:35:11,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 20:35:11,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 20:35:11,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 20:35:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 20:35:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 20:35:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 20:35:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 20:35:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 20:35:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 20:35:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-31 20:35:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 20:35:11,818 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 20:35:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 20:35:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 20:35:11,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 20:35:11,819 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 20:35:11,978 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 20:35:11,980 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 20:35:12,320 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 20:35:12,327 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 20:35:12,330 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 20:35:12,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:35:12 BoogieIcfgContainer [2023-08-31 20:35:12,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 20:35:12,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 20:35:12,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 20:35:12,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 20:35:12,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 08:35:11" (1/3) ... [2023-08-31 20:35:12,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dcf1f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:35:12, skipping insertion in model container [2023-08-31 20:35:12,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:35:11" (2/3) ... [2023-08-31 20:35:12,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dcf1f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:35:12, skipping insertion in model container [2023-08-31 20:35:12,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:35:12" (3/3) ... [2023-08-31 20:35:12,344 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_28-list2alloc.i [2023-08-31 20:35:12,351 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 20:35:12,360 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 20:35:12,361 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-31 20:35:12,361 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 20:35:12,474 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 20:35:12,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 172 transitions, 349 flow [2023-08-31 20:35:12,622 INFO L130 PetriNetUnfolder]: 0/171 cut-off events. [2023-08-31 20:35:12,622 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:35:12,625 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. [2023-08-31 20:35:12,626 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 172 transitions, 349 flow [2023-08-31 20:35:12,638 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 171 transitions, 345 flow [2023-08-31 20:35:12,642 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 20:35:12,652 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 171 transitions, 345 flow [2023-08-31 20:35:12,655 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 171 transitions, 345 flow [2023-08-31 20:35:12,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 171 transitions, 345 flow [2023-08-31 20:35:12,687 INFO L130 PetriNetUnfolder]: 0/171 cut-off events. [2023-08-31 20:35:12,688 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:35:12,688 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. [2023-08-31 20:35:12,690 INFO L119 LiptonReduction]: Number of co-enabled transitions 2544 [2023-08-31 20:35:30,550 WARN L222 SmtUtils]: Spent 9.49s 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) [2023-08-31 20:35:44,337 WARN L222 SmtUtils]: Spent 9.50s 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) [2023-08-31 20:36:00,755 WARN L222 SmtUtils]: Spent 9.05s 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) [2023-08-31 20:36:10,042 WARN L222 SmtUtils]: Spent 8.04s 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) [2023-08-31 20:36:21,548 WARN L222 SmtUtils]: Spent 11.50s 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) [2023-08-31 20:36:38,134 WARN L222 SmtUtils]: Spent 16.58s 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) [2023-08-31 20:36:48,383 WARN L222 SmtUtils]: Spent 10.25s 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) [2023-08-31 20:36:48,387 INFO L134 LiptonReduction]: Checked pairs total: 17799 [2023-08-31 20:36:48,388 INFO L136 LiptonReduction]: Total number of compositions: 140 [2023-08-31 20:36:48,399 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 20:36:48,403 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;@4069b49c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 20:36:48,403 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-08-31 20:36:48,405 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 20:36:48,405 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:36:48,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:36:48,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 20:36:48,406 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)] === [2023-08-31 20:36:48,410 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:36:48,411 INFO L85 PathProgramCache]: Analyzing trace with hash 567, now seen corresponding path program 1 times [2023-08-31 20:36:48,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:36:48,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438756388] [2023-08-31 20:36:48,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:36:48,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:36:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:36:48,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:36:48,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:36:48,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438756388] [2023-08-31 20:36:48,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438756388] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:36:48,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:36:48,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 20:36:48,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645880209] [2023-08-31 20:36:48,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:36:48,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 20:36:48,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:36:48,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 20:36:48,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 20:36:48,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 312 [2023-08-31 20:36:48,572 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) [2023-08-31 20:36:48,572 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:36:48,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 312 [2023-08-31 20:36:48,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:36:48,695 INFO L130 PetriNetUnfolder]: 60/273 cut-off events. [2023-08-31 20:36:48,695 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:36:48,699 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. [2023-08-31 20:36:48,701 INFO L137 encePairwiseOnDemand]: 305/312 looper letters, 19 selfloop transitions, 0 changer transitions 0/49 dead transitions. [2023-08-31 20:36:48,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 49 transitions, 139 flow [2023-08-31 20:36:48,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 20:36:48,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 20:36:48,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 368 transitions. [2023-08-31 20:36:48,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5897435897435898 [2023-08-31 20:36:48,720 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 368 transitions. [2023-08-31 20:36:48,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 368 transitions. [2023-08-31 20:36:48,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:36:48,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 368 transitions. [2023-08-31 20:36:48,731 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) [2023-08-31 20:36:48,735 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) [2023-08-31 20:36:48,736 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) [2023-08-31 20:36:48,738 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 115 flow. Second operand 2 states and 368 transitions. [2023-08-31 20:36:48,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 49 transitions, 139 flow [2023-08-31 20:36:48,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 49 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:36:48,742 INFO L231 Difference]: Finished difference. Result has 53 places, 49 transitions, 100 flow [2023-08-31 20:36:48,744 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} [2023-08-31 20:36:48,750 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -7 predicate places. [2023-08-31 20:36:48,751 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 100 flow [2023-08-31 20:36:48,753 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) [2023-08-31 20:36:48,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:36:48,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 20:36:48,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 20:36:48,754 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)] === [2023-08-31 20:36:48,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:36:48,755 INFO L85 PathProgramCache]: Analyzing trace with hash 539660998, now seen corresponding path program 1 times [2023-08-31 20:36:48,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:36:48,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901376224] [2023-08-31 20:36:48,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:36:48,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:36:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:36:48,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:36:48,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:36:48,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901376224] [2023-08-31 20:36:48,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901376224] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:36:48,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:36:48,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:36:48,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380920595] [2023-08-31 20:36:48,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:36:48,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:36:48,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:36:48,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:36:48,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:36:49,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 312 [2023-08-31 20:36:49,005 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) [2023-08-31 20:36:49,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:36:49,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 312 [2023-08-31 20:36:49,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:36:49,120 INFO L130 PetriNetUnfolder]: 78/319 cut-off events. [2023-08-31 20:36:49,120 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:36:49,123 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. [2023-08-31 20:36:49,125 INFO L137 encePairwiseOnDemand]: 308/312 looper letters, 23 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2023-08-31 20:36:49,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 51 transitions, 154 flow [2023-08-31 20:36:49,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:36:49,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:36:49,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 519 transitions. [2023-08-31 20:36:49,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5544871794871795 [2023-08-31 20:36:49,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 519 transitions. [2023-08-31 20:36:49,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 519 transitions. [2023-08-31 20:36:49,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:36:49,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 519 transitions. [2023-08-31 20:36:49,130 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) [2023-08-31 20:36:49,134 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) [2023-08-31 20:36:49,134 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) [2023-08-31 20:36:49,135 INFO L175 Difference]: Start difference. First operand has 53 places, 49 transitions, 100 flow. Second operand 3 states and 519 transitions. [2023-08-31 20:36:49,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 51 transitions, 154 flow [2023-08-31 20:36:49,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 51 transitions, 154 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:36:49,137 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 110 flow [2023-08-31 20:36:49,137 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} [2023-08-31 20:36:49,138 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2023-08-31 20:36:49,138 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 110 flow [2023-08-31 20:36:49,138 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) [2023-08-31 20:36:49,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:36:49,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:36:49,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 20:36:49,140 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)] === [2023-08-31 20:36:49,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:36:49,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1305759350, now seen corresponding path program 1 times [2023-08-31 20:36:49,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:36:49,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138824953] [2023-08-31 20:36:49,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:36:49,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:36:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:36:49,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:36:49,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:36:49,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138824953] [2023-08-31 20:36:49,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138824953] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:36:49,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:36:49,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:36:49,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638731887] [2023-08-31 20:36:49,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:36:49,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:36:49,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:36:49,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:36:49,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:36:49,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 312 [2023-08-31 20:36:49,815 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) [2023-08-31 20:36:49,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:36:49,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 312 [2023-08-31 20:36:49,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:36:50,003 INFO L130 PetriNetUnfolder]: 212/558 cut-off events. [2023-08-31 20:36:50,003 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-08-31 20:36:50,004 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. [2023-08-31 20:36:50,008 INFO L137 encePairwiseOnDemand]: 301/312 looper letters, 52 selfloop transitions, 22 changer transitions 0/87 dead transitions. [2023-08-31 20:36:50,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 87 transitions, 342 flow [2023-08-31 20:36:50,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:36:50,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:36:50,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 877 transitions. [2023-08-31 20:36:50,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.468482905982906 [2023-08-31 20:36:50,011 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 877 transitions. [2023-08-31 20:36:50,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 877 transitions. [2023-08-31 20:36:50,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:36:50,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 877 transitions. [2023-08-31 20:36:50,014 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) [2023-08-31 20:36:50,017 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) [2023-08-31 20:36:50,018 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) [2023-08-31 20:36:50,018 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 110 flow. Second operand 6 states and 877 transitions. [2023-08-31 20:36:50,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 87 transitions, 342 flow [2023-08-31 20:36:50,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 87 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:36:50,022 INFO L231 Difference]: Finished difference. Result has 64 places, 70 transitions, 260 flow [2023-08-31 20:36:50,022 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} [2023-08-31 20:36:50,023 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2023-08-31 20:36:50,023 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 70 transitions, 260 flow [2023-08-31 20:36:50,024 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) [2023-08-31 20:36:50,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:36:50,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:36:50,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 20:36:50,025 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)] === [2023-08-31 20:36:50,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:36:50,025 INFO L85 PathProgramCache]: Analyzing trace with hash -163821742, now seen corresponding path program 1 times [2023-08-31 20:36:50,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:36:50,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822355756] [2023-08-31 20:36:50,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:36:50,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:36:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:36:50,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:36:50,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:36:50,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822355756] [2023-08-31 20:36:50,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822355756] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:36:50,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:36:50,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:36:50,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164954992] [2023-08-31 20:36:50,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:36:50,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:36:50,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:36:50,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:36:50,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:36:50,548 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 312 [2023-08-31 20:36:50,549 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) [2023-08-31 20:36:50,549 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:36:50,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 312 [2023-08-31 20:36:50,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:36:50,903 INFO L130 PetriNetUnfolder]: 371/844 cut-off events. [2023-08-31 20:36:50,903 INFO L131 PetriNetUnfolder]: For 242/246 co-relation queries the response was YES. [2023-08-31 20:36:50,904 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. [2023-08-31 20:36:50,908 INFO L137 encePairwiseOnDemand]: 290/312 looper letters, 92 selfloop transitions, 80 changer transitions 8/189 dead transitions. [2023-08-31 20:36:50,909 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 189 transitions, 964 flow [2023-08-31 20:36:50,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:36:50,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:36:50,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 919 transitions. [2023-08-31 20:36:50,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4909188034188034 [2023-08-31 20:36:50,912 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 919 transitions. [2023-08-31 20:36:50,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 919 transitions. [2023-08-31 20:36:50,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:36:50,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 919 transitions. [2023-08-31 20:36:50,915 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) [2023-08-31 20:36:50,918 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) [2023-08-31 20:36:50,919 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) [2023-08-31 20:36:50,919 INFO L175 Difference]: Start difference. First operand has 64 places, 70 transitions, 260 flow. Second operand 6 states and 919 transitions. [2023-08-31 20:36:50,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 189 transitions, 964 flow [2023-08-31 20:36:50,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 189 transitions, 964 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:36:50,929 INFO L231 Difference]: Finished difference. Result has 73 places, 145 transitions, 788 flow [2023-08-31 20:36:50,929 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} [2023-08-31 20:36:50,930 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 13 predicate places. [2023-08-31 20:36:50,931 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 145 transitions, 788 flow [2023-08-31 20:36:50,931 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) [2023-08-31 20:36:50,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:36:50,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:36:50,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 20:36:50,932 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)] === [2023-08-31 20:36:50,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:36:50,932 INFO L85 PathProgramCache]: Analyzing trace with hash -613171814, now seen corresponding path program 1 times [2023-08-31 20:36:50,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:36:50,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953513416] [2023-08-31 20:36:50,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:36:50,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:36:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:36:51,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:36:51,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:36:51,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953513416] [2023-08-31 20:36:51,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953513416] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:36:51,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:36:51,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 20:36:51,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463936632] [2023-08-31 20:36:51,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:36:51,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:36:51,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:36:51,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:36:51,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:36:51,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 312 [2023-08-31 20:36:51,028 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) [2023-08-31 20:36:51,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:36:51,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 312 [2023-08-31 20:36:51,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:36:51,154 INFO L130 PetriNetUnfolder]: 217/610 cut-off events. [2023-08-31 20:36:51,154 INFO L131 PetriNetUnfolder]: For 403/427 co-relation queries the response was YES. [2023-08-31 20:36:51,156 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. [2023-08-31 20:36:51,159 INFO L137 encePairwiseOnDemand]: 307/312 looper letters, 34 selfloop transitions, 4 changer transitions 4/156 dead transitions. [2023-08-31 20:36:51,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 156 transitions, 908 flow [2023-08-31 20:36:51,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:36:51,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:36:51,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2023-08-31 20:36:51,161 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.561965811965812 [2023-08-31 20:36:51,161 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions. [2023-08-31 20:36:51,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions. [2023-08-31 20:36:51,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:36:51,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions. [2023-08-31 20:36:51,163 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) [2023-08-31 20:36:51,164 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) [2023-08-31 20:36:51,164 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) [2023-08-31 20:36:51,165 INFO L175 Difference]: Start difference. First operand has 73 places, 145 transitions, 788 flow. Second operand 3 states and 526 transitions. [2023-08-31 20:36:51,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 156 transitions, 908 flow [2023-08-31 20:36:51,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 156 transitions, 884 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-08-31 20:36:51,172 INFO L231 Difference]: Finished difference. Result has 76 places, 145 transitions, 778 flow [2023-08-31 20:36:51,173 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} [2023-08-31 20:36:51,173 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 16 predicate places. [2023-08-31 20:36:51,174 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 145 transitions, 778 flow [2023-08-31 20:36:51,174 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) [2023-08-31 20:36:51,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:36:51,174 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:36:51,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 20:36:51,175 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)] === [2023-08-31 20:36:51,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:36:51,175 INFO L85 PathProgramCache]: Analyzing trace with hash 178969448, now seen corresponding path program 2 times [2023-08-31 20:36:51,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:36:51,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705970804] [2023-08-31 20:36:51,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:36:51,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:36:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 20:36:51,209 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 20:36:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 20:36:51,247 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 20:36:51,247 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 20:36:51,248 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2023-08-31 20:36:51,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2023-08-31 20:36:51,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2023-08-31 20:36:51,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2023-08-31 20:36:51,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2023-08-31 20:36:51,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2023-08-31 20:36:51,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2023-08-31 20:36:51,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2023-08-31 20:36:51,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2023-08-31 20:36:51,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 21 remaining) [2023-08-31 20:36:51,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2023-08-31 20:36:51,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2023-08-31 20:36:51,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2023-08-31 20:36:51,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2023-08-31 20:36:51,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2023-08-31 20:36:51,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2023-08-31 20:36:51,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2023-08-31 20:36:51,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2023-08-31 20:36:51,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2023-08-31 20:36:51,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2023-08-31 20:36:51,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2023-08-31 20:36:51,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 20:36:51,254 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-08-31 20:36:51,259 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 20:36:51,260 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 20:36:51,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 08:36:51 BasicIcfg [2023-08-31 20:36:51,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 20:36:51,290 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 20:36:51,290 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 20:36:51,290 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 20:36:51,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:35:12" (3/4) ... [2023-08-31 20:36:51,292 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 20:36:51,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 20:36:51,293 INFO L158 Benchmark]: Toolchain (without parser) took 100237.22ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 73.2MB in the beginning and 33.4MB in the end (delta: 39.7MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. [2023-08-31 20:36:51,293 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 73.4MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:36:51,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 602.77ms. Allocated memory is still 98.6MB. Free memory was 73.0MB in the beginning and 57.1MB in the end (delta: 15.8MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2023-08-31 20:36:51,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.61ms. Allocated memory is still 98.6MB. Free memory was 57.1MB in the beginning and 54.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 20:36:51,294 INFO L158 Benchmark]: Boogie Preprocessor took 33.56ms. Allocated memory is still 98.6MB. Free memory was 54.1MB in the beginning and 51.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:36:51,295 INFO L158 Benchmark]: RCFGBuilder took 581.33ms. Allocated memory is still 98.6MB. Free memory was 51.7MB in the beginning and 56.1MB in the end (delta: -4.4MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2023-08-31 20:36:51,295 INFO L158 Benchmark]: TraceAbstraction took 98952.21ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 55.7MB in the beginning and 33.4MB in the end (delta: 22.2MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. [2023-08-31 20:36:51,295 INFO L158 Benchmark]: Witness Printer took 2.93ms. Allocated memory is still 119.5MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:36:51,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 73.4MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 602.77ms. Allocated memory is still 98.6MB. Free memory was 73.0MB in the beginning and 57.1MB in the end (delta: 15.8MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.61ms. Allocated memory is still 98.6MB. Free memory was 57.1MB in the beginning and 54.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.56ms. Allocated memory is still 98.6MB. Free memory was 54.1MB in the beginning and 51.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 581.33ms. Allocated memory is still 98.6MB. Free memory was 51.7MB in the beginning and 56.1MB in the end (delta: -4.4MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * TraceAbstraction took 98952.21ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 55.7MB in the beginning and 33.4MB in the end (delta: 22.2MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. * Witness Printer took 2.93ms. Allocated memory is still 119.5MB. Free memory is still 33.4MB. 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: 95.7s, 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: p->datum = x [1229] * C: A = new(3) [1246] * C: p->datum = x [1229] * C: p->next = ((void *)0) [1230] * C: *data = 42 [1253] * C: p->next = ((void *)0) [1230] * C: p->datum = x [1229] * C: p->next = ((void *)0) [1230] * C: p->next = ((void *)0) [1230] * C: B = new(5) [1247] 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: 98.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 95.9s, 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, 0.2s SatisfiabilityAnalysisTime, 1.0s 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! [2023-08-31 20:36:51,378 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