./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/scull.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/scull.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/bin/uautomizer-verify-uCwYo4JHxu --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 aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:34:59,584 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:34:59,686 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:34:59,697 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:34:59,698 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:34:59,737 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:34:59,738 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:34:59,738 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:34:59,739 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:34:59,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:34:59,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:34:59,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:34:59,747 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:34:59,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:34:59,749 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:34:59,750 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:34:59,750 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:34:59,750 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:34:59,751 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:34:59,751 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:34:59,752 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:34:59,752 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:34:59,753 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:34:59,753 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:34:59,754 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:34:59,754 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:34:59,754 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:34:59,755 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:34:59,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:34:59,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:34:59,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:34:59,758 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:34:59,758 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:34:59,758 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:34:59,758 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:34:59,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:34:59,759 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:34:59,759 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:34:59,759 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:34:59,760 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:34:59,760 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:34:59,760 INFO L153 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b [2023-11-19 07:35:00,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:35:00,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:35:00,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:35:00,082 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:35:00,083 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:35:00,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-atomic/scull.i [2023-11-19 07:35:03,318 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:35:03,610 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:35:03,611 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/sv-benchmarks/c/pthread-atomic/scull.i [2023-11-19 07:35:03,629 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/bin/uautomizer-verify-uCwYo4JHxu/data/8e5f51b10/03f8e068efa04de4a8afcc23418ba09c/FLAGda2094946 [2023-11-19 07:35:03,644 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/bin/uautomizer-verify-uCwYo4JHxu/data/8e5f51b10/03f8e068efa04de4a8afcc23418ba09c [2023-11-19 07:35:03,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:35:03,649 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:35:03,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:03,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:35:03,663 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:35:03,663 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:03" (1/1) ... [2023-11-19 07:35:03,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@376763c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:03, skipping insertion in model container [2023-11-19 07:35:03,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:03" (1/1) ... [2023-11-19 07:35:03,730 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:35:04,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:04,235 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:35:04,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:04,359 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:35:04,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:04 WrapperNode [2023-11-19 07:35:04,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:04,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:04,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:35:04,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:35:04,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:04" (1/1) ... [2023-11-19 07:35:04,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:04" (1/1) ... [2023-11-19 07:35:04,458 INFO L138 Inliner]: procedures = 185, calls = 69, calls flagged for inlining = 32, calls inlined = 29, statements flattened = 553 [2023-11-19 07:35:04,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:04,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:35:04,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:35:04,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:35:04,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:04" (1/1) ... [2023-11-19 07:35:04,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:04" (1/1) ... [2023-11-19 07:35:04,481 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:04" (1/1) ... [2023-11-19 07:35:04,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:04" (1/1) ... [2023-11-19 07:35:04,500 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:04" (1/1) ... [2023-11-19 07:35:04,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:04" (1/1) ... [2023-11-19 07:35:04,509 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:04" (1/1) ... [2023-11-19 07:35:04,512 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:04" (1/1) ... [2023-11-19 07:35:04,520 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:35:04,521 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:35:04,521 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:35:04,521 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:35:04,523 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:04" (1/1) ... [2023-11-19 07:35:04,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:35:04,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:04,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:04,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd0ac80-a7b9-4954-bd59-58f613dc8345/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:35:04,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:35:04,631 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:35:04,633 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:35:04,633 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:35:04,634 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:35:04,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:35:04,634 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:35:04,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:35:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure loader [2023-11-19 07:35:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure loader [2023-11-19 07:35:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:35:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:35:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:35:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:35:04,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:35:04,641 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:35:04,953 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:35:04,957 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:35:05,085 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L890: havoc scull_trim_#t~nondet8#1, scull_trim_#t~nondet9#1, scull_trim_#t~nondet10#1, scull_trim_#t~nondet11#1, scull_trim_~dev#1, scull_trim_~qset~0#1; [2023-11-19 07:35:05,085 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-1: havoc scull_trim_#in~dev#1;assume { :end_inline_scull_trim } true; [2023-11-19 07:35:05,085 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-2: assume -2147483648 <= scull_cleanup_module_#t~ret42#1 && scull_cleanup_module_#t~ret42#1 <= 2147483647; [2023-11-19 07:35:05,085 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-3: havoc scull_cleanup_module_#t~ret42#1; [2023-11-19 07:35:05,086 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L887: havoc scull_cleanup_module_#t~nondet41#1, scull_cleanup_module_#t~ret42#1, scull_cleanup_module_~dev~4#1;assume { :end_inline_scull_cleanup_module } true; [2023-11-19 07:35:05,086 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint scull_trim_returnLabel#1: scull_cleanup_module_#t~ret42#1 := scull_trim_#res#1; [2023-11-19 07:35:05,086 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L898: scull_init_module_#res#1 := scull_init_module_~result~0#1; [2023-11-19 07:35:05,827 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:35:05,856 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:35:05,856 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:35:05,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:05 BoogieIcfgContainer [2023-11-19 07:35:05,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:35:05,866 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:35:05,866 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:35:05,869 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:35:05,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:35:03" (1/3) ... [2023-11-19 07:35:05,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cea775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:05, skipping insertion in model container [2023-11-19 07:35:05,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:04" (2/3) ... [2023-11-19 07:35:05,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cea775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:05, skipping insertion in model container [2023-11-19 07:35:05,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:05" (3/3) ... [2023-11-19 07:35:05,872 INFO L112 eAbstractionObserver]: Analyzing ICFG scull.i [2023-11-19 07:35:05,879 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:35:05,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:35:05,889 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2023-11-19 07:35:05,889 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:35:06,124 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 07:35:06,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 603 places, 613 transitions, 1247 flow [2023-11-19 07:35:06,666 INFO L124 PetriNetUnfolderBase]: 20/610 cut-off events. [2023-11-19 07:35:06,667 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:35:06,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 610 events. 20/610 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1853 event pairs, 0 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 549. Up to 4 conditions per place. [2023-11-19 07:35:06,700 INFO L82 GeneralOperation]: Start removeDead. Operand has 603 places, 613 transitions, 1247 flow [2023-11-19 07:35:06,721 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 588 places, 598 transitions, 1211 flow [2023-11-19 07:35:06,726 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:35:06,746 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 588 places, 598 transitions, 1211 flow [2023-11-19 07:35:06,750 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 588 places, 598 transitions, 1211 flow [2023-11-19 07:35:06,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 588 places, 598 transitions, 1211 flow [2023-11-19 07:35:07,112 INFO L124 PetriNetUnfolderBase]: 20/598 cut-off events. [2023-11-19 07:35:07,113 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:35:07,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 598 events. 20/598 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1855 event pairs, 0 based on Foata normal form. 0/533 useless extension candidates. Maximal degree in co-relation 549. Up to 4 conditions per place. [2023-11-19 07:35:07,207 INFO L119 LiptonReduction]: Number of co-enabled transitions 187306 [2023-11-19 07:35:21,464 INFO L134 LiptonReduction]: Checked pairs total: 504263 [2023-11-19 07:35:21,465 INFO L136 LiptonReduction]: Total number of compositions: 497 [2023-11-19 07:35:21,482 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:35:21,489 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=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;@5943d658, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:35:21,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2023-11-19 07:35:21,493 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:35:21,493 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-19 07:35:21,493 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:35:21,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:21,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:35:21,495 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting loaderErr0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-19 07:35:21,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:21,501 INFO L85 PathProgramCache]: Analyzing trace with hash 72844620, now seen corresponding path program 1 times [2023-11-19 07:35:21,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:21,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661912427] [2023-11-19 07:35:21,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:21,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:21,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:21,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:21,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661912427] [2023-11-19 07:35:21,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661912427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:21,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:21,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:35:21,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426121170] [2023-11-19 07:35:21,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:21,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:21,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:21,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:21,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:21,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 577 out of 1110 [2023-11-19 07:35:21,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 208 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 578.3333333333334) internal successors, (1735), 3 states have internal predecessors, (1735), 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) [2023-11-19 07:35:21,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:21,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 577 of 1110 [2023-11-19 07:35:21,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:50,416 INFO L124 PetriNetUnfolderBase]: 117638/230281 cut-off events. [2023-11-19 07:35:50,417 INFO L125 PetriNetUnfolderBase]: For 5587/5587 co-relation queries the response was YES. [2023-11-19 07:35:50,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399429 conditions, 230281 events. 117638/230281 cut-off events. For 5587/5587 co-relation queries the response was YES. Maximal size of possible extension queue 2881. Compared 2526760 event pairs, 45332 based on Foata normal form. 3172/205440 useless extension candidates. Maximal degree in co-relation 383821. Up to 99479 conditions per place.