./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/17_szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce7d631-4828-4eb8-a577-8eb48aced8f5/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce7d631-4828-4eb8-a577-8eb48aced8f5/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_8ce7d631-4828-4eb8-a577-8eb48aced8f5/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce7d631-4828-4eb8-a577-8eb48aced8f5/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/17_szymanski.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce7d631-4828-4eb8-a577-8eb48aced8f5/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_8ce7d631-4828-4eb8-a577-8eb48aced8f5/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 9d000bd3a81a7401f4ccb21c2696e2644e9236d2ccbd2094291c987ec91aaa92 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:58:41,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:58:41,095 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce7d631-4828-4eb8-a577-8eb48aced8f5/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 21:58:41,100 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:58:41,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:58:41,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:58:41,144 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:58:41,144 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:58:41,145 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:58:41,145 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:58:41,146 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:58:41,146 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:58:41,147 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:58:41,147 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:58:41,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:58:41,148 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:58:41,148 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:58:41,149 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:58:41,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:58:41,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:58:41,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:58:41,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:58:41,151 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 21:58:41,151 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:58:41,151 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:58:41,151 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:58:41,152 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:58:41,152 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:58:41,153 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:58:41,153 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:58:41,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:58:41,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:58:41,154 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:58:41,154 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:58:41,155 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:58:41,155 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:58:41,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:58:41,156 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:58:41,156 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:58:41,156 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:58:41,157 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:58:41,161 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_8ce7d631-4828-4eb8-a577-8eb48aced8f5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce7d631-4828-4eb8-a577-8eb48aced8f5/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d000bd3a81a7401f4ccb21c2696e2644e9236d2ccbd2094291c987ec91aaa92 [2024-10-31 21:58:41,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:58:41,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:58:41,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:58:41,456 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:58:41,457 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:58:41,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce7d631-4828-4eb8-a577-8eb48aced8f5/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-ext/17_szymanski.i Unable to find full path for "g++" [2024-10-31 21:58:43,651 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:58:43,983 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:58:43,984 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce7d631-4828-4eb8-a577-8eb48aced8f5/sv-benchmarks/c/pthread-ext/17_szymanski.i [2024-10-31 21:58:44,004 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce7d631-4828-4eb8-a577-8eb48aced8f5/bin/uautomizer-verify-4GaUIPS5ZU/data/e70502916/31d47731f13541f296bb91c205905821/FLAGe67ef69db [2024-10-31 21:58:44,023 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce7d631-4828-4eb8-a577-8eb48aced8f5/bin/uautomizer-verify-4GaUIPS5ZU/data/e70502916/31d47731f13541f296bb91c205905821 [2024-10-31 21:58:44,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:58:44,027 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:58:44,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:44,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:58:44,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:58:44,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:44" (1/1) ... [2024-10-31 21:58:44,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c522d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:44, skipping insertion in model container [2024-10-31 21:58:44,039 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:44" (1/1) ... [2024-10-31 21:58:44,097 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:58:44,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:44,633 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:58:44,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:44,767 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:58:44,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:44 WrapperNode [2024-10-31 21:58:44,767 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:44,768 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:44,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:58:44,769 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:58:44,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:44" (1/1) ... [2024-10-31 21:58:44,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:44" (1/1) ... [2024-10-31 21:58:44,819 INFO L138 Inliner]: procedures = 166, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 180 [2024-10-31 21:58:44,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:44,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:58:44,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:58:44,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:58:44,833 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:44" (1/1) ... [2024-10-31 21:58:44,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:44" (1/1) ... [2024-10-31 21:58:44,837 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:44" (1/1) ... [2024-10-31 21:58:44,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:44" (1/1) ... [2024-10-31 21:58:44,844 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:44" (1/1) ... [2024-10-31 21:58:44,849 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:44" (1/1) ... [2024-10-31 21:58:44,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:44" (1/1) ... [2024-10-31 21:58:44,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:44" (1/1) ... [2024-10-31 21:58:44,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:58:44,857 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:58:44,858 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:58:44,858 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:58:44,859 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:44" (1/1) ... [2024-10-31 21:58:44,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:58:44,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce7d631-4828-4eb8-a577-8eb48aced8f5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:44,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce7d631-4828-4eb8-a577-8eb48aced8f5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:44,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce7d631-4828-4eb8-a577-8eb48aced8f5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:58:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-31 21:58:44,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-31 21:58:44,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:58:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 21:58:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:58:44,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:58:44,985 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 21:58:45,210 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:58:45,214 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:58:45,694 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:58:45,695 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:58:45,721 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:58:45,722 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-31 21:58:45,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:45 BoogieIcfgContainer [2024-10-31 21:58:45,723 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:58:45,726 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:58:45,727 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:58:45,731 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:58:45,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:58:44" (1/3) ... [2024-10-31 21:58:45,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735116d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:58:45, skipping insertion in model container [2024-10-31 21:58:45,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:44" (2/3) ... [2024-10-31 21:58:45,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735116d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:58:45, skipping insertion in model container [2024-10-31 21:58:45,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:45" (3/3) ... [2024-10-31 21:58:45,736 INFO L112 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2024-10-31 21:58:45,759 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:58:45,760 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-10-31 21:58:45,760 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:58:45,882 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 21:58:45,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 187 places, 211 transitions, 426 flow [2024-10-31 21:58:46,143 INFO L124 PetriNetUnfolderBase]: 28/210 cut-off events. [2024-10-31 21:58:46,143 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:58:46,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 210 events. 28/210 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 528 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 194. Up to 3 conditions per place. [2024-10-31 21:58:46,163 INFO L82 GeneralOperation]: Start removeDead. Operand has 187 places, 211 transitions, 426 flow [2024-10-31 21:58:46,182 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 210 transitions, 423 flow [2024-10-31 21:58:46,205 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:58:46,218 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;@68639049, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:58:46,218 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-10-31 21:58:46,237 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:58:46,238 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2024-10-31 21:58:46,238 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:58:46,238 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:46,242 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] [2024-10-31 21:58:46,243 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-31 21:58:46,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:46,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1667950524, now seen corresponding path program 1 times [2024-10-31 21:58:46,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:46,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44420603] [2024-10-31 21:58:46,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:46,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:46,606 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 21:58:46,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:46,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44420603] [2024-10-31 21:58:46,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44420603] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:46,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:46,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:58:46,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433812060] [2024-10-31 21:58:46,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:46,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:58:46,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:46,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:58:46,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:58:46,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 211 [2024-10-31 21:58:46,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 210 transitions, 423 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 21:58:46,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:46,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 211 [2024-10-31 21:58:46,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:47,212 INFO L124 PetriNetUnfolderBase]: 134/874 cut-off events. [2024-10-31 21:58:47,213 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 21:58:47,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1032 conditions, 874 events. 134/874 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5030 event pairs, 36 based on Foata normal form. 80/734 useless extension candidates. Maximal degree in co-relation 1010. Up to 134 conditions per place. [2024-10-31 21:58:47,231 INFO L140 encePairwiseOnDemand]: 185/211 looper letters, 15 selfloop transitions, 9 changer transitions 0/187 dead transitions. [2024-10-31 21:58:47,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 187 transitions, 425 flow [2024-10-31 21:58:47,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:58:47,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:58:47,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 580 transitions. [2024-10-31 21:58:47,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9162717219589257 [2024-10-31 21:58:47,266 INFO L175 Difference]: Start difference. First operand has 186 places, 210 transitions, 423 flow. Second operand 3 states and 580 transitions. [2024-10-31 21:58:47,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 187 transitions, 425 flow [2024-10-31 21:58:47,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 187 transitions, 424 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 21:58:47,281 INFO L231 Difference]: Finished difference. Result has 172 places, 187 transitions, 430 flow [2024-10-31 21:58:47,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=430, PETRI_PLACES=172, PETRI_TRANSITIONS=187} [2024-10-31 21:58:47,288 INFO L277 CegarLoopForPetriNet]: 186 programPoint places, -14 predicate places. [2024-10-31 21:58:47,292 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 187 transitions, 430 flow [2024-10-31 21:58:47,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 21:58:47,293 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:47,293 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] [2024-10-31 21:58:47,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:58:47,294 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-31 21:58:47,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:47,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1437994993, now seen corresponding path program 1 times [2024-10-31 21:58:47,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:47,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071267855] [2024-10-31 21:58:47,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:47,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:47,415 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 21:58:47,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:47,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071267855] [2024-10-31 21:58:47,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071267855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:47,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:47,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:58:47,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592489360] [2024-10-31 21:58:47,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:47,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:58:47,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:47,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:58:47,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:58:47,579 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 211 [2024-10-31 21:58:47,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 187 transitions, 430 flow. Second operand has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 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 21:58:47,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:47,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 211 [2024-10-31 21:58:47,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:48,059 INFO L124 PetriNetUnfolderBase]: 416/2468 cut-off events. [2024-10-31 21:58:48,060 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-10-31 21:58:48,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3230 conditions, 2468 events. 416/2468 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 19867 event pairs, 13 based on Foata normal form. 0/1890 useless extension candidates. Maximal degree in co-relation 3207. Up to 216 conditions per place. [2024-10-31 21:58:48,106 INFO L140 encePairwiseOnDemand]: 188/211 looper letters, 24 selfloop transitions, 17 changer transitions 0/204 dead transitions. [2024-10-31 21:58:48,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 204 transitions, 546 flow [2024-10-31 21:58:48,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:58:48,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:58:48,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 554 transitions. [2024-10-31 21:58:48,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8751974723538705 [2024-10-31 21:58:48,114 INFO L175 Difference]: Start difference. First operand has 172 places, 187 transitions, 430 flow. Second operand 3 states and 554 transitions. [2024-10-31 21:58:48,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 204 transitions, 546 flow [2024-10-31 21:58:48,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 204 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:58:48,144 INFO L231 Difference]: Finished difference. Result has 174 places, 204 transitions, 560 flow [2024-10-31 21:58:48,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=560, PETRI_PLACES=174, PETRI_TRANSITIONS=204} [2024-10-31 21:58:48,145 INFO L277 CegarLoopForPetriNet]: 186 programPoint places, -12 predicate places. [2024-10-31 21:58:48,145 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 204 transitions, 560 flow [2024-10-31 21:58:48,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 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 21:58:48,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:48,152 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] [2024-10-31 21:58:48,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:58:48,153 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-31 21:58:48,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:48,154 INFO L85 PathProgramCache]: Analyzing trace with hash 954229119, now seen corresponding path program 1 times [2024-10-31 21:58:48,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:48,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102540133] [2024-10-31 21:58:48,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:48,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:48,271 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 21:58:48,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:48,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102540133] [2024-10-31 21:58:48,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102540133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:48,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:48,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:58:48,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666663248] [2024-10-31 21:58:48,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:48,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:58:48,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:48,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:58:48,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:58:48,391 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 211 [2024-10-31 21:58:48,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 204 transitions, 560 flow. Second operand has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 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 21:58:48,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:48,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 211 [2024-10-31 21:58:48,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:48,875 INFO L124 PetriNetUnfolderBase]: 513/2781 cut-off events. [2024-10-31 21:58:48,879 INFO L125 PetriNetUnfolderBase]: For 493/552 co-relation queries the response was YES. [2024-10-31 21:58:48,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4181 conditions, 2781 events. 513/2781 cut-off events. For 493/552 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 22599 event pairs, 25 based on Foata normal form. 1/2168 useless extension candidates. Maximal degree in co-relation 4157. Up to 399 conditions per place. [2024-10-31 21:58:48,936 INFO L140 encePairwiseOnDemand]: 201/211 looper letters, 26 selfloop transitions, 16 changer transitions 0/218 dead transitions. [2024-10-31 21:58:48,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 218 transitions, 708 flow [2024-10-31 21:58:48,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:58:48,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:58:48,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 551 transitions. [2024-10-31 21:58:48,945 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8704581358609794 [2024-10-31 21:58:48,946 INFO L175 Difference]: Start difference. First operand has 174 places, 204 transitions, 560 flow. Second operand 3 states and 551 transitions. [2024-10-31 21:58:48,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 218 transitions, 708 flow [2024-10-31 21:58:48,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 218 transitions, 662 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:58:48,958 INFO L231 Difference]: Finished difference. Result has 176 places, 218 transitions, 672 flow [2024-10-31 21:58:48,959 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=672, PETRI_PLACES=176, PETRI_TRANSITIONS=218} [2024-10-31 21:58:48,960 INFO L277 CegarLoopForPetriNet]: 186 programPoint places, -10 predicate places. [2024-10-31 21:58:48,960 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 218 transitions, 672 flow [2024-10-31 21:58:48,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 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 21:58:48,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:48,961 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] [2024-10-31 21:58:48,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:58:48,961 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-31 21:58:48,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:48,962 INFO L85 PathProgramCache]: Analyzing trace with hash 564609156, now seen corresponding path program 1 times [2024-10-31 21:58:48,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:48,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288137488] [2024-10-31 21:58:48,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:48,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:49,074 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 21:58:49,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:49,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288137488] [2024-10-31 21:58:49,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288137488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:49,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:49,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:58:49,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770603426] [2024-10-31 21:58:49,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:49,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:58:49,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:49,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:58:49,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:58:49,171 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 211 [2024-10-31 21:58:49,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 218 transitions, 672 flow. Second operand has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 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 21:58:49,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:49,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 211 [2024-10-31 21:58:49,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:49,641 INFO L124 PetriNetUnfolderBase]: 692/3398 cut-off events. [2024-10-31 21:58:49,641 INFO L125 PetriNetUnfolderBase]: For 628/653 co-relation queries the response was YES. [2024-10-31 21:58:49,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5242 conditions, 3398 events. 692/3398 cut-off events. For 628/653 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 29280 event pairs, 77 based on Foata normal form. 1/2619 useless extension candidates. Maximal degree in co-relation 5217. Up to 448 conditions per place. [2024-10-31 21:58:49,670 INFO L140 encePairwiseOnDemand]: 201/211 looper letters, 21 selfloop transitions, 9 changer transitions 0/226 dead transitions. [2024-10-31 21:58:49,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 226 transitions, 760 flow [2024-10-31 21:58:49,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:58:49,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:58:49,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 556 transitions. [2024-10-31 21:58:49,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8783570300157978 [2024-10-31 21:58:49,674 INFO L175 Difference]: Start difference. First operand has 176 places, 218 transitions, 672 flow. Second operand 3 states and 556 transitions. [2024-10-31 21:58:49,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 226 transitions, 760 flow [2024-10-31 21:58:49,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 226 transitions, 728 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:58:49,683 INFO L231 Difference]: Finished difference. Result has 178 places, 226 transitions, 722 flow [2024-10-31 21:58:49,684 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=178, PETRI_TRANSITIONS=226} [2024-10-31 21:58:49,685 INFO L277 CegarLoopForPetriNet]: 186 programPoint places, -8 predicate places. [2024-10-31 21:58:49,686 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 226 transitions, 722 flow [2024-10-31 21:58:49,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 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 21:58:49,687 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:49,687 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] [2024-10-31 21:58:49,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:58:49,689 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-31 21:58:49,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:49,690 INFO L85 PathProgramCache]: Analyzing trace with hash -948467264, now seen corresponding path program 1 times [2024-10-31 21:58:49,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:49,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039160690] [2024-10-31 21:58:49,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:49,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:49,754 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 21:58:49,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:49,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039160690] [2024-10-31 21:58:49,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039160690] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:49,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:49,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:58:49,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801047013] [2024-10-31 21:58:49,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:49,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:58:49,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:49,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:58:49,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:58:49,815 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 211 [2024-10-31 21:58:49,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 226 transitions, 722 flow. Second operand has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 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 21:58:49,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:49,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 211 [2024-10-31 21:58:49,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:50,388 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([384] L708-1-->L708-2: Formula: (= |v_ULTIMATE.start_thr2_#t~nondet11#1_4| |v_#race~flag2~0_25|) InVars {ULTIMATE.start_thr2_#t~nondet11#1=|v_ULTIMATE.start_thr2_#t~nondet11#1_4|} OutVars{#race~flag2~0=|v_#race~flag2~0_25|, ULTIMATE.start_thr2_#t~nondet11#1=|v_ULTIMATE.start_thr2_#t~nondet11#1_4|} AuxVars[] AssignedVars[#race~flag2~0][94], [Black: 207#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet4#1|), Black: 192#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), 205#true, 49#L689-2true, Black: 197#(= |#race~flag2~0| 0), 165#L708-2true, Black: 202#(= |ULTIMATE.start_thr2_#t~nondet10#1| |#race~flag2~0|), 188#true, 212#(= |#race~flag1~0| 0)]) [2024-10-31 21:58:50,388 INFO L294 olderBase$Statistics]: this new event has 87 ancestors and is cut-off event [2024-10-31 21:58:50,389 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2024-10-31 21:58:50,389 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2024-10-31 21:58:50,389 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2024-10-31 21:58:50,409 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([565] L690-1-->L690-2: Formula: (= |v_#race~flag1~0_7| |v_thr1Thread1of1ForFork0_#t~nondet4#1_3|) InVars {thr1Thread1of1ForFork0_#t~nondet4#1=|v_thr1Thread1of1ForFork0_#t~nondet4#1_3|} OutVars{thr1Thread1of1ForFork0_#t~nondet4#1=|v_thr1Thread1of1ForFork0_#t~nondet4#1_3|, #race~flag1~0=|v_#race~flag1~0_7|} AuxVars[] AssignedVars[#race~flag1~0][93], [Black: 205#true, Black: 192#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), Black: 195#true, 164#L690-2true, 210#true, 207#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet4#1|), 148#L707-2true, Black: 202#(= |ULTIMATE.start_thr2_#t~nondet10#1| |#race~flag2~0|), 188#true]) [2024-10-31 21:58:50,410 INFO L294 olderBase$Statistics]: this new event has 87 ancestors and is cut-off event [2024-10-31 21:58:50,410 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2024-10-31 21:58:50,410 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2024-10-31 21:58:50,410 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2024-10-31 21:58:50,467 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([578] L692-2-->L692-3: Formula: (= |v_thr1Thread1of1ForFork0_#t~nondet5#1_3| |v_#race~flag1~0_10|) InVars {thr1Thread1of1ForFork0_#t~nondet5#1=|v_thr1Thread1of1ForFork0_#t~nondet5#1_3|} OutVars{thr1Thread1of1ForFork0_#t~nondet5#1=|v_thr1Thread1of1ForFork0_#t~nondet5#1_3|, #race~flag1~0=|v_#race~flag1~0_10|} AuxVars[] AssignedVars[#race~flag1~0][148], [Black: 207#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet4#1|), Black: 192#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), 205#true, 179#L692-3true, Black: 195#true, 210#true, 148#L707-2true, Black: 202#(= |ULTIMATE.start_thr2_#t~nondet10#1| |#race~flag2~0|), 188#true]) [2024-10-31 21:58:50,467 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2024-10-31 21:58:50,467 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-10-31 21:58:50,468 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-10-31 21:58:50,468 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-10-31 21:58:50,468 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([579] L695-1-->L695-2: Formula: (= |v_thr1Thread1of1ForFork0_#t~nondet6#1_3| |v_#race~flag1~0_13|) InVars {thr1Thread1of1ForFork0_#t~nondet6#1=|v_thr1Thread1of1ForFork0_#t~nondet6#1_3|} OutVars{#race~flag1~0=|v_#race~flag1~0_13|, thr1Thread1of1ForFork0_#t~nondet6#1=|v_thr1Thread1of1ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~flag1~0][147], [Black: 207#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet4#1|), 9#L695-2true, Black: 192#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), 205#true, Black: 195#true, 210#true, 148#L707-2true, Black: 202#(= |ULTIMATE.start_thr2_#t~nondet10#1| |#race~flag2~0|), 188#true]) [2024-10-31 21:58:50,469 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2024-10-31 21:58:50,469 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-10-31 21:58:50,469 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-10-31 21:58:50,469 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-10-31 21:58:50,482 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([384] L708-1-->L708-2: Formula: (= |v_ULTIMATE.start_thr2_#t~nondet11#1_4| |v_#race~flag2~0_25|) InVars {ULTIMATE.start_thr2_#t~nondet11#1=|v_ULTIMATE.start_thr2_#t~nondet11#1_4|} OutVars{#race~flag2~0=|v_#race~flag2~0_25|, ULTIMATE.start_thr2_#t~nondet11#1=|v_ULTIMATE.start_thr2_#t~nondet11#1_4|} AuxVars[] AssignedVars[#race~flag2~0][94], [Black: 207#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet4#1|), Black: 192#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), 205#true, Black: 197#(= |#race~flag2~0| 0), 107#L691-2true, 165#L708-2true, Black: 202#(= |ULTIMATE.start_thr2_#t~nondet10#1| |#race~flag2~0|), 188#true, 212#(= |#race~flag1~0| 0)]) [2024-10-31 21:58:50,482 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2024-10-31 21:58:50,482 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-10-31 21:58:50,482 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-10-31 21:58:50,483 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-10-31 21:58:50,645 INFO L124 PetriNetUnfolderBase]: 1386/5846 cut-off events. [2024-10-31 21:58:50,645 INFO L125 PetriNetUnfolderBase]: For 2055/2129 co-relation queries the response was YES. [2024-10-31 21:58:50,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10082 conditions, 5846 events. 1386/5846 cut-off events. For 2055/2129 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 54555 event pairs, 41 based on Foata normal form. 13/4638 useless extension candidates. Maximal degree in co-relation 10056. Up to 713 conditions per place. [2024-10-31 21:58:50,697 INFO L140 encePairwiseOnDemand]: 188/211 looper letters, 36 selfloop transitions, 29 changer transitions 0/255 dead transitions. [2024-10-31 21:58:50,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 255 transitions, 988 flow [2024-10-31 21:58:50,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:58:50,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:58:50,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 554 transitions. [2024-10-31 21:58:50,700 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8751974723538705 [2024-10-31 21:58:50,700 INFO L175 Difference]: Start difference. First operand has 178 places, 226 transitions, 722 flow. Second operand 3 states and 554 transitions. [2024-10-31 21:58:50,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 255 transitions, 988 flow [2024-10-31 21:58:50,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 255 transitions, 932 flow, removed 12 selfloop flow, removed 2 redundant places. [2024-10-31 21:58:50,715 INFO L231 Difference]: Finished difference. Result has 180 places, 255 transitions, 988 flow [2024-10-31 21:58:50,716 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=988, PETRI_PLACES=180, PETRI_TRANSITIONS=255} [2024-10-31 21:58:50,717 INFO L277 CegarLoopForPetriNet]: 186 programPoint places, -6 predicate places. [2024-10-31 21:58:50,718 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 255 transitions, 988 flow [2024-10-31 21:58:50,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 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 21:58:50,719 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:50,719 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] [2024-10-31 21:58:50,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:58:50,719 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-31 21:58:50,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:50,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1475537319, now seen corresponding path program 1 times [2024-10-31 21:58:50,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:50,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792067970] [2024-10-31 21:58:50,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:50,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:50,748 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:50,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:50,790 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 21:58:50,791 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2024-10-31 21:58:50,793 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2024-10-31 21:58:50,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2024-10-31 21:58:50,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2024-10-31 21:58:50,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2024-10-31 21:58:50,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2024-10-31 21:58:50,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2024-10-31 21:58:50,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2024-10-31 21:58:50,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2024-10-31 21:58:50,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2024-10-31 21:58:50,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2024-10-31 21:58:50,796 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2024-10-31 21:58:50,796 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2024-10-31 21:58:50,796 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2024-10-31 21:58:50,797 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2024-10-31 21:58:50,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2024-10-31 21:58:50,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2024-10-31 21:58:50,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2024-10-31 21:58:50,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2024-10-31 21:58:50,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2024-10-31 21:58:50,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2024-10-31 21:58:50,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2024-10-31 21:58:50,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2024-10-31 21:58:50,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2024-10-31 21:58:50,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2024-10-31 21:58:50,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2024-10-31 21:58:50,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2024-10-31 21:58:50,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 40 remaining) [2024-10-31 21:58:50,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2024-10-31 21:58:50,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2024-10-31 21:58:50,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2024-10-31 21:58:50,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2024-10-31 21:58:50,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2024-10-31 21:58:50,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2024-10-31 21:58:50,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2024-10-31 21:58:50,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2024-10-31 21:58:50,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2024-10-31 21:58:50,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2024-10-31 21:58:50,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2024-10-31 21:58:50,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2024-10-31 21:58:50,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:58:50,807 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-31 21:58:50,856 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 21:58:50,856 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 21:58:50,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 09:58:50 BasicIcfg [2024-10-31 21:58:50,867 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 21:58:50,868 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 21:58:50,868 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 21:58:50,868 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 21:58:50,869 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:45" (3/4) ... [2024-10-31 21:58:50,874 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-31 21:58:50,939 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce7d631-4828-4eb8-a577-8eb48aced8f5/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 21:58:50,940 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 21:58:50,940 INFO L158 Benchmark]: Toolchain (without parser) took 6913.88ms. Allocated memory was 151.0MB in the beginning and 260.0MB in the end (delta: 109.1MB). Free memory was 116.6MB in the beginning and 159.0MB in the end (delta: -42.4MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2024-10-31 21:58:50,943 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 111.1MB. Free memory was 63.7MB in the beginning and 63.4MB in the end (delta: 242.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:58:50,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 739.85ms. Allocated memory is still 151.0MB. Free memory was 116.6MB in the beginning and 94.4MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-31 21:58:50,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.56ms. Allocated memory is still 151.0MB. Free memory was 94.4MB in the beginning and 92.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:58:50,945 INFO L158 Benchmark]: Boogie Preprocessor took 35.86ms. Allocated memory is still 151.0MB. Free memory was 92.3MB in the beginning and 90.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:58:50,945 INFO L158 Benchmark]: RCFGBuilder took 866.12ms. Allocated memory is still 151.0MB. Free memory was 90.2MB in the beginning and 71.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 21:58:50,945 INFO L158 Benchmark]: TraceAbstraction took 5140.88ms. Allocated memory was 151.0MB in the beginning and 260.0MB in the end (delta: 109.1MB). Free memory was 70.6MB in the beginning and 163.2MB in the end (delta: -92.6MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2024-10-31 21:58:50,945 INFO L158 Benchmark]: Witness Printer took 71.92ms. Allocated memory is still 260.0MB. Free memory was 162.1MB in the beginning and 159.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:58:50,949 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 111.1MB. Free memory was 63.7MB in the beginning and 63.4MB in the end (delta: 242.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 739.85ms. Allocated memory is still 151.0MB. Free memory was 116.6MB in the beginning and 94.4MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.56ms. Allocated memory is still 151.0MB. Free memory was 94.4MB in the beginning and 92.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.86ms. Allocated memory is still 151.0MB. Free memory was 92.3MB in the beginning and 90.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 866.12ms. Allocated memory is still 151.0MB. Free memory was 90.2MB in the beginning and 71.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5140.88ms. Allocated memory was 151.0MB in the beginning and 260.0MB in the end (delta: 109.1MB). Free memory was 70.6MB in the beginning and 163.2MB in the end (delta: -92.6MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Witness Printer took 71.92ms. Allocated memory is still 260.0MB. Free memory was 162.1MB in the beginning and 159.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 689]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int flag1 = 0, flag2 = 0; VAL [flag1=0, flag2=0] [L685] 0 int x; VAL [flag1=0, flag2=0, x=0] [L724] 0 pthread_t t; VAL [flag1=0, flag2=0, x=0] [L725] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [flag1=0, flag2=0, t=-1, x=0] [L726] CALL 0 thr2(0) [L705] COND TRUE 0 1 VAL [\old(arg)={0:0}, arg={0:0}, flag1=0, flag2=0, x=0] [L706] 0 flag2 = 1 VAL [\old(arg)={0:0}, arg={0:0}, flag1=0, flag2=1, x=0] [L687] COND TRUE 1 1 VAL [\old(arg)={0:0}, arg={0:0}, flag1=0, flag2=1, x=0] [L688] 1 flag1 = 1 VAL [\old(arg)={0:0}, arg={0:0}, flag1=1, flag2=1, x=0] [L689] 1 flag2 >= 3 VAL [\old(arg)={0:0}, arg={0:0}, flag1=1, flag2=1, x=0] [L706] 0 flag2 = 1 VAL [\old(arg)={0:0}, arg={0:0}, flag1=1, flag2=1, x=0] [L689] 1 flag2 >= 3 VAL [\old(arg)={0:0}, arg={0:0}, flag1=1, flag2=1, x=0] Now there is a data race on ~flag2~0 between C: flag2 = 1 [706] and C: flag2 >= 3 [689] - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 263 locations, 40 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 380 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 90 mSDsluCounter, 117 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 296 IncrementalHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 117 mSDtfsCounter, 296 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=988occurred in iteration=5, InterpolantAutomatonStates: 15, 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-31 21:58:50,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce7d631-4828-4eb8-a577-8eb48aced8f5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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