./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-complex/bounded_buffer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:17:52,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:17:52,264 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:17:52,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:17:52,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:17:52,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:17:52,282 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:17:52,282 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:17:52,283 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:17:52,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:17:52,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:17:52,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:17:52,283 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:17:52,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:17:52,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:17:52,283 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:17:52,283 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:17:52,283 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:17:52,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:17:52,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:17:52,283 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:17:52,283 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:17:52,284 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:17:52,284 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:17:52,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:17:52,284 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:17:52,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:17:52,285 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:17:52,285 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:17:52,285 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:17:52,285 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:17:52,285 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2025-01-09 21:17:52,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:17:52,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:17:52,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:17:52,535 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:17:52,535 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:17:52,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2025-01-09 21:17:53,676 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/21cabdd72/4f8001c61ffa4750945a56c69c22b385/FLAG40df80752 [2025-01-09 21:17:54,071 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:17:54,072 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2025-01-09 21:17:54,092 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/21cabdd72/4f8001c61ffa4750945a56c69c22b385/FLAG40df80752 [2025-01-09 21:17:54,248 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/21cabdd72/4f8001c61ffa4750945a56c69c22b385 [2025-01-09 21:17:54,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:17:54,250 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:17:54,251 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:17:54,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:17:54,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:17:54,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:17:54" (1/1) ... [2025-01-09 21:17:54,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2217ad44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:17:54, skipping insertion in model container [2025-01-09 21:17:54,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:17:54" (1/1) ... [2025-01-09 21:17:54,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:17:54,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:17:54,763 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:17:54,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:17:54,928 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:17:54,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:17:54 WrapperNode [2025-01-09 21:17:54,929 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:17:54,930 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:17:54,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:17:54,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:17:54,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:17:54" (1/1) ... [2025-01-09 21:17:54,969 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:17:54" (1/1) ... [2025-01-09 21:17:55,022 INFO L138 Inliner]: procedures = 429, calls = 135, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 877 [2025-01-09 21:17:55,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:17:55,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:17:55,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:17:55,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:17:55,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:17:54" (1/1) ... [2025-01-09 21:17:55,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:17:54" (1/1) ... [2025-01-09 21:17:55,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:17:54" (1/1) ... [2025-01-09 21:17:55,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:17:54" (1/1) ... [2025-01-09 21:17:55,104 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:17:54" (1/1) ... [2025-01-09 21:17:55,108 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:17:54" (1/1) ... [2025-01-09 21:17:55,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:17:54" (1/1) ... [2025-01-09 21:17:55,125 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:17:54" (1/1) ... [2025-01-09 21:17:55,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:17:54" (1/1) ... [2025-01-09 21:17:55,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:17:55,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:17:55,148 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:17:55,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:17:55,149 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:17:54" (1/1) ... [2025-01-09 21:17:55,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:17:55,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:17:55,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:17:55,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:17:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2025-01-09 21:17:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2025-01-09 21:17:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 21:17:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-09 21:17:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-09 21:17:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 21:17:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:17:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-01-09 21:17:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:17:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:17:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 21:17:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-01-09 21:17:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2025-01-09 21:17:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2025-01-09 21:17:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-09 21:17:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-09 21:17:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:17:55,204 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:17:55,354 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:17:55,356 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:17:56,337 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:17:56,337 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:17:56,381 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:17:56,381 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2025-01-09 21:17:56,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:17:56 BoogieIcfgContainer [2025-01-09 21:17:56,381 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:17:56,388 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:17:56,388 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:17:56,392 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:17:56,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:17:54" (1/3) ... [2025-01-09 21:17:56,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@962e658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:17:56, skipping insertion in model container [2025-01-09 21:17:56,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:17:54" (2/3) ... [2025-01-09 21:17:56,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@962e658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:17:56, skipping insertion in model container [2025-01-09 21:17:56,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:17:56" (3/3) ... [2025-01-09 21:17:56,394 INFO L128 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2025-01-09 21:17:56,405 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:17:56,406 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bounded_buffer.i that has 3 procedures, 930 locations, 1 initial locations, 13 loop locations, and 77 error locations. [2025-01-09 21:17:56,406 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:17:56,580 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-01-09 21:17:56,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 936 places, 977 transitions, 1974 flow [2025-01-09 21:17:57,189 INFO L124 PetriNetUnfolderBase]: 97/2068 cut-off events. [2025-01-09 21:17:57,191 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-01-09 21:17:57,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2085 conditions, 2068 events. 97/2068 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 12765 event pairs, 0 based on Foata normal form. 0/1800 useless extension candidates. Maximal degree in co-relation 1083. Up to 16 conditions per place. [2025-01-09 21:17:57,241 INFO L82 GeneralOperation]: Start removeDead. Operand has 936 places, 977 transitions, 1974 flow [2025-01-09 21:17:57,261 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 936 places, 977 transitions, 1974 flow [2025-01-09 21:17:57,266 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:17:57,274 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6160137b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:17:57,274 INFO L334 AbstractCegarLoop]: Starting to check reachability of 121 error locations. [2025-01-09 21:17:57,278 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:17:57,279 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2025-01-09 21:17:57,279 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:17:57,279 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:17:57,279 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:17:57,279 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [consumer_routineErr0ASSERT_VIOLATIONDATA_RACE, consumer_routineErr1ASSERT_VIOLATIONDATA_RACE, consumer_routineErr21ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 118 more)] === [2025-01-09 21:17:57,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:17:57,283 INFO L85 PathProgramCache]: Analyzing trace with hash 2002519908, now seen corresponding path program 1 times [2025-01-09 21:17:57,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:17:57,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760357485] [2025-01-09 21:17:57,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:17:57,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:17:57,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-09 21:17:57,368 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-09 21:17:57,368 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:17:57,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:17:57,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:17:57,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:17:57,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760357485] [2025-01-09 21:17:57,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760357485] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:17:57,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:17:57,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:17:57,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882022743] [2025-01-09 21:17:57,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:17:57,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:17:57,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:17:58,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:17:58,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:17:59,371 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 680 out of 977 [2025-01-09 21:17:59,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 936 places, 977 transitions, 1974 flow. Second operand has 6 states, 6 states have (on average 681.3333333333334) internal successors, (4088), 6 states have internal predecessors, (4088), 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) [2025-01-09 21:17:59,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:17:59,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 680 of 977 [2025-01-09 21:17:59,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand