./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU --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 36c3c3dc239d6629a8ba20aca175d79c45880ab21458cd8ebdaac3a8ef359066 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:17:40,382 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:17:40,487 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:17:40,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:17:40,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:17:40,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:17:40,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:17:40,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:17:40,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:17:40,535 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:17:40,536 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:17:40,537 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:17:40,537 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:17:40,540 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:17:40,541 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:17:40,541 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:17:40,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:17:40,542 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:17:40,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:17:40,543 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:17:40,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:17:40,548 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:17:40,548 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:17:40,549 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:17:40,549 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:17:40,549 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:17:40,550 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:17:40,550 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:17:40,550 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:17:40,551 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:17:40,551 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:17:40,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:17:40,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:17:40,554 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:17:40,554 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:17:40,555 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:17:40,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:17:40,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:17:40,557 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:17:40,557 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:17:40,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:17:40,558 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_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36c3c3dc239d6629a8ba20aca175d79c45880ab21458cd8ebdaac3a8ef359066 [2024-10-31 22:17:40,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:17:40,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:17:40,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:17:40,985 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:17:40,986 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:17:40,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i Unable to find full path for "g++" [2024-10-31 22:17:43,049 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:17:43,298 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:17:43,299 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2024-10-31 22:17:43,329 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU/data/10afe8e94/84d333d7bcf3499b8069de5d2bd9b02b/FLAG33374d47f [2024-10-31 22:17:43,350 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU/data/10afe8e94/84d333d7bcf3499b8069de5d2bd9b02b [2024-10-31 22:17:43,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:17:43,357 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:17:43,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:17:43,363 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:17:43,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:17:43,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:17:43" (1/1) ... [2024-10-31 22:17:43,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b41e30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:43, skipping insertion in model container [2024-10-31 22:17:43,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:17:43" (1/1) ... [2024-10-31 22:17:43,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:17:43,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:17:43,977 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:17:44,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:17:44,078 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:17:44,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:44 WrapperNode [2024-10-31 22:17:44,079 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:17:44,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:17:44,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:17:44,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:17:44,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:44" (1/1) ... [2024-10-31 22:17:44,103 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:44" (1/1) ... [2024-10-31 22:17:44,128 INFO L138 Inliner]: procedures = 168, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 171 [2024-10-31 22:17:44,129 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:17:44,129 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:17:44,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:17:44,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:17:44,139 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:44" (1/1) ... [2024-10-31 22:17:44,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:44" (1/1) ... [2024-10-31 22:17:44,143 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:44" (1/1) ... [2024-10-31 22:17:44,143 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:44" (1/1) ... [2024-10-31 22:17:44,150 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:44" (1/1) ... [2024-10-31 22:17:44,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:44" (1/1) ... [2024-10-31 22:17:44,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:44" (1/1) ... [2024-10-31 22:17:44,157 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:44" (1/1) ... [2024-10-31 22:17:44,160 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:17:44,161 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:17:44,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:17:44,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:17:44,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:44" (1/1) ... [2024-10-31 22:17:44,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:17:44,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:17:44,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:17:44,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:17:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:17:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:17:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:17:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-31 22:17:44,240 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-31 22:17:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:17:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:17:44,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:17:44,249 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:17:44,492 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:17:44,519 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:17:44,840 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:17:44,840 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:17:44,874 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:17:44,874 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:17:44,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:44 BoogieIcfgContainer [2024-10-31 22:17:44,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:17:44,880 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:17:44,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:17:44,884 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:17:44,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:17:43" (1/3) ... [2024-10-31 22:17:44,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec9608e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:17:44, skipping insertion in model container [2024-10-31 22:17:44,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:44" (2/3) ... [2024-10-31 22:17:44,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec9608e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:17:44, skipping insertion in model container [2024-10-31 22:17:44,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:44" (3/3) ... [2024-10-31 22:17:44,887 INFO L112 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2024-10-31 22:17:44,908 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:17:44,908 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:17:44,909 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:17:44,982 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:17:45,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 177 transitions, 361 flow [2024-10-31 22:17:45,119 INFO L124 PetriNetUnfolderBase]: 4/176 cut-off events. [2024-10-31 22:17:45,119 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:17:45,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 176 events. 4/176 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2024-10-31 22:17:45,124 INFO L82 GeneralOperation]: Start removeDead. Operand has 177 places, 177 transitions, 361 flow [2024-10-31 22:17:45,130 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 172 places, 172 transitions, 347 flow [2024-10-31 22:17:45,140 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:17:45,147 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;@4b06f9fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:17:45,147 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-31 22:17:45,204 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:17:45,205 INFO L124 PetriNetUnfolderBase]: 1/153 cut-off events. [2024-10-31 22:17:45,205 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:17:45,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:45,206 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:45,207 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-31 22:17:45,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:45,213 INFO L85 PathProgramCache]: Analyzing trace with hash -2137078632, now seen corresponding path program 1 times [2024-10-31 22:17:45,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:45,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194505288] [2024-10-31 22:17:45,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:45,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:45,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:45,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:45,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194505288] [2024-10-31 22:17:45,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194505288] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:45,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:45,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:17:45,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915573478] [2024-10-31 22:17:45,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:45,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:17:45,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:45,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:17:45,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:17:45,868 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 177 [2024-10-31 22:17:45,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 172 transitions, 347 flow. Second operand has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 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) [2024-10-31 22:17:45,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:45,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 177 [2024-10-31 22:17:45,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:46,065 INFO L124 PetriNetUnfolderBase]: 24/281 cut-off events. [2024-10-31 22:17:46,069 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:17:46,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 281 events. 24/281 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 634 event pairs, 6 based on Foata normal form. 23/282 useless extension candidates. Maximal degree in co-relation 198. Up to 34 conditions per place. [2024-10-31 22:17:46,072 INFO L140 encePairwiseOnDemand]: 169/177 looper letters, 13 selfloop transitions, 4 changer transitions 1/175 dead transitions. [2024-10-31 22:17:46,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 175 transitions, 389 flow [2024-10-31 22:17:46,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:17:46,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:17:46,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 508 transitions. [2024-10-31 22:17:46,093 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9566854990583804 [2024-10-31 22:17:46,098 INFO L175 Difference]: Start difference. First operand has 172 places, 172 transitions, 347 flow. Second operand 3 states and 508 transitions. [2024-10-31 22:17:46,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 175 transitions, 389 flow [2024-10-31 22:17:46,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 175 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:17:46,108 INFO L231 Difference]: Finished difference. Result has 174 places, 171 transitions, 368 flow [2024-10-31 22:17:46,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=174, PETRI_TRANSITIONS=171} [2024-10-31 22:17:46,115 INFO L277 CegarLoopForPetriNet]: 172 programPoint places, 2 predicate places. [2024-10-31 22:17:46,116 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 171 transitions, 368 flow [2024-10-31 22:17:46,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 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) [2024-10-31 22:17:46,117 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:46,117 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:46,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:17:46,118 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-31 22:17:46,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:46,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1846746080, now seen corresponding path program 1 times [2024-10-31 22:17:46,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:46,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34026908] [2024-10-31 22:17:46,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:46,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:46,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:46,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:46,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34026908] [2024-10-31 22:17:46,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34026908] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:46,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:46,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:17:46,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066549716] [2024-10-31 22:17:46,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:46,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:17:46,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:46,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:17:46,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:17:46,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 177 [2024-10-31 22:17:46,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 171 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 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) [2024-10-31 22:17:46,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:46,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 177 [2024-10-31 22:17:46,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:46,442 INFO L124 PetriNetUnfolderBase]: 14/260 cut-off events. [2024-10-31 22:17:46,442 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-31 22:17:46,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 260 events. 14/260 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 488 event pairs, 4 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 209. Up to 23 conditions per place. [2024-10-31 22:17:46,444 INFO L140 encePairwiseOnDemand]: 173/177 looper letters, 8 selfloop transitions, 3 changer transitions 2/174 dead transitions. [2024-10-31 22:17:46,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 174 transitions, 404 flow [2024-10-31 22:17:46,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:17:46,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:17:46,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2024-10-31 22:17:46,450 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9510357815442562 [2024-10-31 22:17:46,450 INFO L175 Difference]: Start difference. First operand has 174 places, 171 transitions, 368 flow. Second operand 3 states and 505 transitions. [2024-10-31 22:17:46,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 174 transitions, 404 flow [2024-10-31 22:17:46,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 174 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:17:46,457 INFO L231 Difference]: Finished difference. Result has 176 places, 172 transitions, 382 flow [2024-10-31 22:17:46,458 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=382, PETRI_PLACES=176, PETRI_TRANSITIONS=172} [2024-10-31 22:17:46,459 INFO L277 CegarLoopForPetriNet]: 172 programPoint places, 4 predicate places. [2024-10-31 22:17:46,460 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 172 transitions, 382 flow [2024-10-31 22:17:46,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 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) [2024-10-31 22:17:46,460 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:46,461 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:46,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:17:46,462 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-31 22:17:46,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:46,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1860740460, now seen corresponding path program 1 times [2024-10-31 22:17:46,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:46,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630240509] [2024-10-31 22:17:46,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:46,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:17:46,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:17:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:17:46,698 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:17:46,699 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:17:46,701 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2024-10-31 22:17:46,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-10-31 22:17:46,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2024-10-31 22:17:46,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2024-10-31 22:17:46,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:17:46,706 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-31 22:17:46,820 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:17:46,821 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:17:46,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:17:46 BasicIcfg [2024-10-31 22:17:46,835 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:17:46,836 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:17:46,836 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:17:46,836 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:17:46,837 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:44" (3/4) ... [2024-10-31 22:17:46,839 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-31 22:17:46,963 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:17:46,963 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:17:46,964 INFO L158 Benchmark]: Toolchain (without parser) took 3606.58ms. Allocated memory was 125.8MB in the beginning and 195.0MB in the end (delta: 69.2MB). Free memory was 62.3MB in the beginning and 125.0MB in the end (delta: -62.8MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2024-10-31 22:17:46,964 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory is still 99.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:17:46,965 INFO L158 Benchmark]: CACSL2BoogieTranslator took 717.06ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 62.0MB in the beginning and 114.8MB in the end (delta: -52.8MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2024-10-31 22:17:46,965 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.53ms. Allocated memory is still 161.5MB. Free memory was 114.8MB in the beginning and 111.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:17:46,965 INFO L158 Benchmark]: Boogie Preprocessor took 30.91ms. Allocated memory is still 161.5MB. Free memory was 111.9MB in the beginning and 109.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:17:46,967 INFO L158 Benchmark]: RCFGBuilder took 717.16ms. Allocated memory is still 161.5MB. Free memory was 109.8MB in the beginning and 118.7MB in the end (delta: -8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:17:46,968 INFO L158 Benchmark]: TraceAbstraction took 1955.26ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 117.8MB in the beginning and 142.9MB in the end (delta: -25.1MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2024-10-31 22:17:46,968 INFO L158 Benchmark]: Witness Printer took 127.18ms. Allocated memory is still 195.0MB. Free memory was 142.9MB in the beginning and 125.0MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-31 22:17:46,971 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory is still 99.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 717.06ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 62.0MB in the beginning and 114.8MB in the end (delta: -52.8MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.53ms. Allocated memory is still 161.5MB. Free memory was 114.8MB in the beginning and 111.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.91ms. Allocated memory is still 161.5MB. Free memory was 111.9MB in the beginning and 109.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 717.16ms. Allocated memory is still 161.5MB. Free memory was 109.8MB in the beginning and 118.7MB in the end (delta: -8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1955.26ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 117.8MB in the beginning and 142.9MB in the end (delta: -25.1MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. * Witness Printer took 127.18ms. Allocated memory is still 195.0MB. Free memory was 142.9MB in the beginning and 125.0MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 714]: Data race detected Data race detected The following path leads to a data race: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [lock={3:0}] [L699] 0 int x; VAL [lock={3:0}, x=0] [L709] 0 pthread_t t; VAL [lock={3:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [lock={3:0}, t=-1, x=0] [L713] 0 int i = 0; VAL [i=0, lock={3:0}, t=-1, x=0] [L713] COND TRUE 0 i <= 42 VAL [i=0, lock={3:0}, t=-1, x=0] [L714] 0 x = i VAL [i=0, lock={3:0}, t=-1, x=0] [L704] 1 x == 42 VAL [\old(arg)={0:0}, arg={0:0}, lock={3:0}, x=0] [L714] 0 x = i VAL [i=0, lock={3:0}, t=-1, x=0] Now there is a data race on ~x~0 between C: x == 42 [704] and C: x = i [714] - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 704]: 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, 195 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 7 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=382occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 0.4s InterpolantComputationTime, 441 NumberOfCodeBlocks, 441 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 291 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2024-10-31 22:17:47,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64669a74-7b00-4353-b479-3ea589052eaf/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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