./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380caace-7a55-4c6c-b6cf-129b920c61cf/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380caace-7a55-4c6c-b6cf-129b920c61cf/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380caace-7a55-4c6c-b6cf-129b920c61cf/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380caace-7a55-4c6c-b6cf-129b920c61cf/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380caace-7a55-4c6c-b6cf-129b920c61cf/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380caace-7a55-4c6c-b6cf-129b920c61cf/bin/uautomizer-verify-qhAvR1uOyd --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-dev-826ab2b [2024-11-13 16:22:56,514 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:22:56,611 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380caace-7a55-4c6c-b6cf-129b920c61cf/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 16:22:56,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:22:56,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:22:56,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:22:56,660 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:22:56,660 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:22:56,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:22:56,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:22:56,661 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:22:56,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:22:56,661 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:22:56,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:22:56,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:22:56,662 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:22:56,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:22:56,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:22:56,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:22:56,662 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:22:56,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:22:56,662 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:22:56,662 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 16:22:56,663 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:22:56,663 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:22:56,663 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:22:56,663 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:22:56,663 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:22:56,663 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:22:56,663 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:22:56,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:22:56,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:22:56,665 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:22:56,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:22:56,666 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:22:56,666 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:22:56,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:22:56,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:22:56,666 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:22:56,666 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:22:56,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:22:56,667 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380caace-7a55-4c6c-b6cf-129b920c61cf/bin/uautomizer-verify-qhAvR1uOyd 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 [2024-11-13 16:22:56,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:22:56,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:22:56,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:22:56,981 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:22:56,982 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:22:56,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380caace-7a55-4c6c-b6cf-129b920c61cf/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-complex/bounded_buffer.i Unable to find full path for "g++" [2024-11-13 16:22:58,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:22:59,381 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:22:59,382 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380caace-7a55-4c6c-b6cf-129b920c61cf/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2024-11-13 16:22:59,416 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380caace-7a55-4c6c-b6cf-129b920c61cf/bin/uautomizer-verify-qhAvR1uOyd/data/4b9d68d8d/f7a71968d7204869a5c022db95ab1a28/FLAGd9de09405 [2024-11-13 16:22:59,449 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380caace-7a55-4c6c-b6cf-129b920c61cf/bin/uautomizer-verify-qhAvR1uOyd/data/4b9d68d8d/f7a71968d7204869a5c022db95ab1a28 [2024-11-13 16:22:59,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:22:59,455 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:22:59,459 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:22:59,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:22:59,465 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:22:59,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:22:59" (1/1) ... [2024-11-13 16:22:59,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a44fe89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:59, skipping insertion in model container [2024-11-13 16:22:59,467 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:22:59" (1/1) ... [2024-11-13 16:22:59,539 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:23:00,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:23:00,763 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:23:00,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:23:01,066 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:23:01,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:01 WrapperNode [2024-11-13 16:23:01,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:23:01,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:23:01,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:23:01,068 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:23:01,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:01" (1/1) ... [2024-11-13 16:23:01,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:01" (1/1) ... [2024-11-13 16:23:01,202 INFO L138 Inliner]: procedures = 429, calls = 135, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 889 [2024-11-13 16:23:01,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:23:01,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:23:01,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:23:01,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:23:01,214 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:01" (1/1) ... [2024-11-13 16:23:01,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:01" (1/1) ... [2024-11-13 16:23:01,232 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:01" (1/1) ... [2024-11-13 16:23:01,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:01" (1/1) ... [2024-11-13 16:23:01,286 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:01" (1/1) ... [2024-11-13 16:23:01,296 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:01" (1/1) ... [2024-11-13 16:23:01,309 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:01" (1/1) ... [2024-11-13 16:23:01,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:01" (1/1) ... [2024-11-13 16:23:01,329 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:23:01,330 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:23:01,330 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:23:01,330 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:23:01,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:01" (1/1) ... [2024-11-13 16:23:01,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:23:01,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380caace-7a55-4c6c-b6cf-129b920c61cf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:23:01,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380caace-7a55-4c6c-b6cf-129b920c61cf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:23:01,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380caace-7a55-4c6c-b6cf-129b920c61cf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:23:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2024-11-13 16:23:01,413 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2024-11-13 16:23:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:23:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 16:23:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 16:23:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 16:23:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:23:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 16:23:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:23:01,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:23:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:23:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 16:23:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2024-11-13 16:23:01,414 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2024-11-13 16:23:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 16:23:01,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 16:23:01,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:23:01,417 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 16:23:01,625 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:23:01,627 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:23:03,625 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 16:23:03,626 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:23:03,679 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:23:03,679 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-13 16:23:03,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:23:03 BoogieIcfgContainer [2024-11-13 16:23:03,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:23:03,686 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:23:03,686 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:23:03,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:23:03,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:22:59" (1/3) ... [2024-11-13 16:23:03,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7585b111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:23:03, skipping insertion in model container [2024-11-13 16:23:03,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:01" (2/3) ... [2024-11-13 16:23:03,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7585b111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:23:03, skipping insertion in model container [2024-11-13 16:23:03,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:23:03" (3/3) ... [2024-11-13 16:23:03,699 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2024-11-13 16:23:03,716 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:23:03,718 INFO L154 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. [2024-11-13 16:23:03,719 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 16:23:04,087 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-13 16:23:04,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 936 places, 983 transitions, 1986 flow [2024-11-13 16:23:05,455 INFO L124 PetriNetUnfolderBase]: 114/2085 cut-off events. [2024-11-13 16:23:05,457 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-13 16:23:05,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2102 conditions, 2085 events. 114/2085 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 12787 event pairs, 0 based on Foata normal form. 0/1800 useless extension candidates. Maximal degree in co-relation 1092. Up to 16 conditions per place. [2024-11-13 16:23:05,546 INFO L82 GeneralOperation]: Start removeDead. Operand has 936 places, 983 transitions, 1986 flow [2024-11-13 16:23:05,591 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 936 places, 983 transitions, 1986 flow [2024-11-13 16:23:05,604 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:23:05,626 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;@3e4d2ea1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:23:05,626 INFO L334 AbstractCegarLoop]: Starting to check reachability of 121 error locations. [2024-11-13 16:23:05,637 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:23:05,637 INFO L124 PetriNetUnfolderBase]: 1/34 cut-off events. [2024-11-13 16:23:05,637 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:23:05,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:23:05,638 INFO L204 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] [2024-11-13 16:23:05,638 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)] === [2024-11-13 16:23:05,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:23:05,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1919752506, now seen corresponding path program 1 times [2024-11-13 16:23:05,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:23:05,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731798021] [2024-11-13 16:23:05,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:23:05,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:23:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:23:06,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:23:06,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:23:06,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731798021] [2024-11-13 16:23:06,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731798021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:23:06,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:23:06,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:23:06,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495293426] [2024-11-13 16:23:06,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:23:06,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:23:06,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:23:06,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:23:06,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:23:09,709 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 680 out of 983 [2024-11-13 16:23:09,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 936 places, 983 transitions, 1986 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) [2024-11-13 16:23:09,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:23:09,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 680 of 983 [2024-11-13 16:23:09,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand