./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/twostage_3.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_ce8d2638-0ef2-4801-ac58-4611a7caad4b/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d2638-0ef2-4801-ac58-4611a7caad4b/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_ce8d2638-0ef2-4801-ac58-4611a7caad4b/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d2638-0ef2-4801-ac58-4611a7caad4b/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d2638-0ef2-4801-ac58-4611a7caad4b/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_ce8d2638-0ef2-4801-ac58-4611a7caad4b/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 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:02:43,702 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:02:43,801 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d2638-0ef2-4801-ac58-4611a7caad4b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:02:43,808 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:02:43,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:02:43,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:02:43,836 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:02:43,836 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:02:43,837 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:02:43,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:02:43,838 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:02:43,839 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:02:43,839 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:02:43,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:02:43,843 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:02:43,843 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:02:43,844 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:02:43,844 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:02:43,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:02:43,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:02:43,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:02:43,846 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:02:43,846 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:02:43,847 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:02:43,847 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:02:43,847 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:02:43,848 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:02:43,848 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:02:43,848 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:02:43,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:02:43,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:02:43,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:02:43,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:02:43,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:02:43,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:02:43,851 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:02:43,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:02:43,852 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:02:43,852 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:02:43,852 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:02:43,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:02:43,853 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_ce8d2638-0ef2-4801-ac58-4611a7caad4b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d2638-0ef2-4801-ac58-4611a7caad4b/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 [2024-10-31 22:02:44,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:02:44,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:02:44,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:02:44,259 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:02:44,260 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:02:44,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d2638-0ef2-4801-ac58-4611a7caad4b/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread/twostage_3.i Unable to find full path for "g++" [2024-10-31 22:02:46,447 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:02:46,833 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:02:46,836 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d2638-0ef2-4801-ac58-4611a7caad4b/sv-benchmarks/c/pthread/twostage_3.i [2024-10-31 22:02:46,866 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d2638-0ef2-4801-ac58-4611a7caad4b/bin/uautomizer-verify-4GaUIPS5ZU/data/4bea738c9/468f9f6468d5469f85a299e0fba7eb2a/FLAG4456f4855 [2024-10-31 22:02:46,888 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d2638-0ef2-4801-ac58-4611a7caad4b/bin/uautomizer-verify-4GaUIPS5ZU/data/4bea738c9/468f9f6468d5469f85a299e0fba7eb2a [2024-10-31 22:02:46,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:02:46,895 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:02:46,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:46,897 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:02:46,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:02:46,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:46" (1/1) ... [2024-10-31 22:02:46,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4291aa1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:46, skipping insertion in model container [2024-10-31 22:02:46,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:46" (1/1) ... [2024-10-31 22:02:46,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:02:47,923 WARN L1657 CHandler]: Possible shadowing of function lock [2024-10-31 22:02:47,926 WARN L1657 CHandler]: Possible shadowing of function lock [2024-10-31 22:02:47,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:47,947 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:02:48,077 WARN L1657 CHandler]: Possible shadowing of function lock [2024-10-31 22:02:48,080 WARN L1657 CHandler]: Possible shadowing of function lock [2024-10-31 22:02:48,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:48,245 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:02:48,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:48 WrapperNode [2024-10-31 22:02:48,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:48,247 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:48,247 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:02:48,247 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:02:48,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:48" (1/1) ... [2024-10-31 22:02:48,296 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:48" (1/1) ... [2024-10-31 22:02:48,342 INFO L138 Inliner]: procedures = 373, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 276 [2024-10-31 22:02:48,345 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:48,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:02:48,346 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:02:48,346 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:02:48,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:48" (1/1) ... [2024-10-31 22:02:48,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:48" (1/1) ... [2024-10-31 22:02:48,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:48" (1/1) ... [2024-10-31 22:02:48,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:48" (1/1) ... [2024-10-31 22:02:48,395 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:48" (1/1) ... [2024-10-31 22:02:48,401 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:48" (1/1) ... [2024-10-31 22:02:48,408 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:48" (1/1) ... [2024-10-31 22:02:48,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:48" (1/1) ... [2024-10-31 22:02:48,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:02:48,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:02:48,422 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:02:48,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:02:48,423 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:48" (1/1) ... [2024-10-31 22:02:48,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:02:48,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d2638-0ef2-4801-ac58-4611a7caad4b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:48,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d2638-0ef2-4801-ac58-4611a7caad4b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:48,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d2638-0ef2-4801-ac58-4611a7caad4b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:02:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2024-10-31 22:02:48,498 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2024-10-31 22:02:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2024-10-31 22:02:48,498 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2024-10-31 22:02:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:02:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:02:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:02:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:02:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:02:48,502 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:02:48,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:02:48,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:02:48,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:02:48,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:02:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:02:48,505 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 22:02:48,739 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:02:48,752 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:02:49,489 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:02:49,489 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:02:49,565 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:02:49,566 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-31 22:02:49,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:49 BoogieIcfgContainer [2024-10-31 22:02:49,567 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:02:49,570 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:02:49,571 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:02:49,576 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:02:49,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:02:46" (1/3) ... [2024-10-31 22:02:49,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a889fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:02:49, skipping insertion in model container [2024-10-31 22:02:49,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:48" (2/3) ... [2024-10-31 22:02:49,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a889fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:02:49, skipping insertion in model container [2024-10-31 22:02:49,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:49" (3/3) ... [2024-10-31 22:02:49,580 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2024-10-31 22:02:49,602 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:02:49,603 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2024-10-31 22:02:49,603 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:02:49,731 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-31 22:02:49,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 353 places, 369 transitions, 758 flow [2024-10-31 22:02:50,080 INFO L124 PetriNetUnfolderBase]: 43/682 cut-off events. [2024-10-31 22:02:50,080 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-31 22:02:50,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 682 events. 43/682 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2924 event pairs, 0 based on Foata normal form. 0/554 useless extension candidates. Maximal degree in co-relation 354. Up to 8 conditions per place. [2024-10-31 22:02:50,098 INFO L82 GeneralOperation]: Start removeDead. Operand has 353 places, 369 transitions, 758 flow [2024-10-31 22:02:50,112 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 353 places, 369 transitions, 758 flow [2024-10-31 22:02:50,121 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:02:50,128 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;@7f4a8eca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:02:50,128 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2024-10-31 22:02:50,133 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:02:50,133 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-10-31 22:02:50,133 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:02:50,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:50,134 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] [2024-10-31 22:02:50,134 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:02:50,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:50,140 INFO L85 PathProgramCache]: Analyzing trace with hash 430025642, now seen corresponding path program 1 times [2024-10-31 22:02:50,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:50,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560097543] [2024-10-31 22:02:50,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:50,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:50,401 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 22:02:50,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:50,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560097543] [2024-10-31 22:02:50,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560097543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:50,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:50,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:50,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407151050] [2024-10-31 22:02:50,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:50,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:50,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:50,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:50,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:50,493 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 369 [2024-10-31 22:02:50,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 369 transitions, 758 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 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 22:02:50,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:50,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 369 [2024-10-31 22:02:50,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:51,274 INFO L124 PetriNetUnfolderBase]: 271/2560 cut-off events. [2024-10-31 22:02:51,274 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2024-10-31 22:02:51,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3072 conditions, 2560 events. 271/2560 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 20155 event pairs, 234 based on Foata normal form. 246/2367 useless extension candidates. Maximal degree in co-relation 2414. Up to 458 conditions per place. [2024-10-31 22:02:51,303 INFO L140 encePairwiseOnDemand]: 350/369 looper letters, 25 selfloop transitions, 1 changer transitions 8/349 dead transitions. [2024-10-31 22:02:51,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 349 transitions, 770 flow [2024-10-31 22:02:51,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:51,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:51,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1016 transitions. [2024-10-31 22:02:51,325 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9177958446251129 [2024-10-31 22:02:51,329 INFO L175 Difference]: Start difference. First operand has 353 places, 369 transitions, 758 flow. Second operand 3 states and 1016 transitions. [2024-10-31 22:02:51,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 349 transitions, 770 flow [2024-10-31 22:02:51,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 349 transitions, 770 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:02:51,348 INFO L231 Difference]: Finished difference. Result has 349 places, 341 transitions, 704 flow [2024-10-31 22:02:51,351 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=349, PETRI_TRANSITIONS=341} [2024-10-31 22:02:51,356 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -4 predicate places. [2024-10-31 22:02:51,356 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 341 transitions, 704 flow [2024-10-31 22:02:51,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 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 22:02:51,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:51,358 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 22:02:51,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:02:51,359 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:02:51,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:51,360 INFO L85 PathProgramCache]: Analyzing trace with hash 446020844, now seen corresponding path program 1 times [2024-10-31 22:02:51,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:51,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984580966] [2024-10-31 22:02:51,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:51,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:51,496 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 22:02:51,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:51,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984580966] [2024-10-31 22:02:51,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984580966] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:51,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:51,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:51,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572682669] [2024-10-31 22:02:51,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:51,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:51,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:51,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:51,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:51,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 369 [2024-10-31 22:02:51,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 341 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 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 22:02:51,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:51,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 369 [2024-10-31 22:02:51,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:52,344 INFO L124 PetriNetUnfolderBase]: 152/2660 cut-off events. [2024-10-31 22:02:52,344 INFO L125 PetriNetUnfolderBase]: For 210/266 co-relation queries the response was YES. [2024-10-31 22:02:52,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3059 conditions, 2660 events. 152/2660 cut-off events. For 210/266 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 20635 event pairs, 116 based on Foata normal form. 0/2231 useless extension candidates. Maximal degree in co-relation 1499. Up to 147 conditions per place. [2024-10-31 22:02:52,373 INFO L140 encePairwiseOnDemand]: 367/369 looper letters, 35 selfloop transitions, 1 changer transitions 0/357 dead transitions. [2024-10-31 22:02:52,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 357 transitions, 826 flow [2024-10-31 22:02:52,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:52,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:52,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1039 transitions. [2024-10-31 22:02:52,376 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.938572719060524 [2024-10-31 22:02:52,376 INFO L175 Difference]: Start difference. First operand has 349 places, 341 transitions, 704 flow. Second operand 3 states and 1039 transitions. [2024-10-31 22:02:52,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 357 transitions, 826 flow [2024-10-31 22:02:52,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 357 transitions, 825 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:02:52,386 INFO L231 Difference]: Finished difference. Result has 341 places, 340 transitions, 703 flow [2024-10-31 22:02:52,387 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=703, PETRI_PLACES=341, PETRI_TRANSITIONS=340} [2024-10-31 22:02:52,388 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -12 predicate places. [2024-10-31 22:02:52,388 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 340 transitions, 703 flow [2024-10-31 22:02:52,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 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 22:02:52,389 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:52,389 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] [2024-10-31 22:02:52,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:02:52,390 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:02:52,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:52,391 INFO L85 PathProgramCache]: Analyzing trace with hash 941708073, now seen corresponding path program 1 times [2024-10-31 22:02:52,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:52,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315067867] [2024-10-31 22:02:52,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:52,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:52,448 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 22:02:52,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:52,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315067867] [2024-10-31 22:02:52,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315067867] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:52,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:52,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:52,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601084459] [2024-10-31 22:02:52,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:52,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:52,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:52,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:52,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:52,493 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 369 [2024-10-31 22:02:52,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 340 transitions, 703 flow. Second operand has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 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 22:02:52,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:52,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 369 [2024-10-31 22:02:52,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:53,465 INFO L124 PetriNetUnfolderBase]: 728/3855 cut-off events. [2024-10-31 22:02:53,465 INFO L125 PetriNetUnfolderBase]: For 234/290 co-relation queries the response was YES. [2024-10-31 22:02:53,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5294 conditions, 3855 events. 728/3855 cut-off events. For 234/290 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 32400 event pairs, 156 based on Foata normal form. 5/3415 useless extension candidates. Maximal degree in co-relation 2644. Up to 1033 conditions per place. [2024-10-31 22:02:53,513 INFO L140 encePairwiseOnDemand]: 353/369 looper letters, 37 selfloop transitions, 5 changer transitions 11/349 dead transitions. [2024-10-31 22:02:53,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 349 transitions, 821 flow [2024-10-31 22:02:53,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:53,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:53,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 994 transitions. [2024-10-31 22:02:53,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8979223125564589 [2024-10-31 22:02:53,518 INFO L175 Difference]: Start difference. First operand has 341 places, 340 transitions, 703 flow. Second operand 3 states and 994 transitions. [2024-10-31 22:02:53,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 349 transitions, 821 flow [2024-10-31 22:02:53,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 349 transitions, 820 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:02:53,529 INFO L231 Difference]: Finished difference. Result has 335 places, 325 transitions, 691 flow [2024-10-31 22:02:53,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=691, PETRI_PLACES=335, PETRI_TRANSITIONS=325} [2024-10-31 22:02:53,531 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -18 predicate places. [2024-10-31 22:02:53,532 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 325 transitions, 691 flow [2024-10-31 22:02:53,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 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 22:02:53,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:53,533 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 22:02:53,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:02:53,535 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:02:53,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:53,537 INFO L85 PathProgramCache]: Analyzing trace with hash -713705851, now seen corresponding path program 1 times [2024-10-31 22:02:53,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:53,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243521942] [2024-10-31 22:02:53,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:53,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:53,614 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 22:02:53,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:53,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243521942] [2024-10-31 22:02:53,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243521942] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:53,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:53,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:53,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873045092] [2024-10-31 22:02:53,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:53,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:53,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:53,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:53,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:53,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 369 [2024-10-31 22:02:53,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 325 transitions, 691 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 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 22:02:53,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:53,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 369 [2024-10-31 22:02:53,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:55,015 INFO L124 PetriNetUnfolderBase]: 892/6890 cut-off events. [2024-10-31 22:02:55,015 INFO L125 PetriNetUnfolderBase]: For 204/204 co-relation queries the response was YES. [2024-10-31 22:02:55,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8651 conditions, 6890 events. 892/6890 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 69743 event pairs, 772 based on Foata normal form. 0/5806 useless extension candidates. Maximal degree in co-relation 7876. Up to 1414 conditions per place. [2024-10-31 22:02:55,089 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 25 selfloop transitions, 2 changer transitions 0/322 dead transitions. [2024-10-31 22:02:55,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 322 transitions, 739 flow [2024-10-31 22:02:55,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:55,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:55,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1003 transitions. [2024-10-31 22:02:55,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9060523938572719 [2024-10-31 22:02:55,094 INFO L175 Difference]: Start difference. First operand has 335 places, 325 transitions, 691 flow. Second operand 3 states and 1003 transitions. [2024-10-31 22:02:55,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 322 transitions, 739 flow [2024-10-31 22:02:55,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 322 transitions, 739 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:02:55,111 INFO L231 Difference]: Finished difference. Result has 325 places, 322 transitions, 693 flow [2024-10-31 22:02:55,112 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=693, PETRI_PLACES=325, PETRI_TRANSITIONS=322} [2024-10-31 22:02:55,113 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -28 predicate places. [2024-10-31 22:02:55,114 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 322 transitions, 693 flow [2024-10-31 22:02:55,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 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 22:02:55,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:55,115 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 22:02:55,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:02:55,116 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:02:55,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:55,120 INFO L85 PathProgramCache]: Analyzing trace with hash -915097583, now seen corresponding path program 1 times [2024-10-31 22:02:55,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:55,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63052708] [2024-10-31 22:02:55,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:55,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:55,172 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 22:02:55,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:55,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63052708] [2024-10-31 22:02:55,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63052708] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:55,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:55,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:55,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408722093] [2024-10-31 22:02:55,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:55,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:55,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:55,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:55,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:55,221 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 369 [2024-10-31 22:02:55,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 322 transitions, 693 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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 22:02:55,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:55,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 369 [2024-10-31 22:02:55,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:56,573 INFO L124 PetriNetUnfolderBase]: 544/4903 cut-off events. [2024-10-31 22:02:56,574 INFO L125 PetriNetUnfolderBase]: For 204/204 co-relation queries the response was YES. [2024-10-31 22:02:56,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6099 conditions, 4903 events. 544/4903 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 47215 event pairs, 456 based on Foata normal form. 0/4156 useless extension candidates. Maximal degree in co-relation 5547. Up to 902 conditions per place. [2024-10-31 22:02:56,622 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 25 selfloop transitions, 2 changer transitions 0/321 dead transitions. [2024-10-31 22:02:56,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 321 transitions, 745 flow [2024-10-31 22:02:56,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:56,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:56,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1006 transitions. [2024-10-31 22:02:56,626 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9087624209575429 [2024-10-31 22:02:56,626 INFO L175 Difference]: Start difference. First operand has 325 places, 322 transitions, 693 flow. Second operand 3 states and 1006 transitions. [2024-10-31 22:02:56,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 321 transitions, 745 flow [2024-10-31 22:02:56,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 321 transitions, 745 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:02:56,634 INFO L231 Difference]: Finished difference. Result has 326 places, 321 transitions, 695 flow [2024-10-31 22:02:56,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=326, PETRI_TRANSITIONS=321} [2024-10-31 22:02:56,636 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -27 predicate places. [2024-10-31 22:02:56,637 INFO L471 AbstractCegarLoop]: Abstraction has has 326 places, 321 transitions, 695 flow [2024-10-31 22:02:56,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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 22:02:56,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:56,638 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:56,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:02:56,638 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:02:56,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:56,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1152647961, now seen corresponding path program 1 times [2024-10-31 22:02:56,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:56,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897036973] [2024-10-31 22:02:56,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:56,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:56,696 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 22:02:56,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:56,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897036973] [2024-10-31 22:02:56,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897036973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:56,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:56,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:02:56,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360701674] [2024-10-31 22:02:56,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:56,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:56,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:56,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:56,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:56,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 369 [2024-10-31 22:02:56,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 321 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 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 22:02:56,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:56,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 369 [2024-10-31 22:02:56,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:57,684 INFO L124 PetriNetUnfolderBase]: 344/3671 cut-off events. [2024-10-31 22:02:57,685 INFO L125 PetriNetUnfolderBase]: For 210/266 co-relation queries the response was YES. [2024-10-31 22:02:57,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4506 conditions, 3671 events. 344/3671 cut-off events. For 210/266 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 33494 event pairs, 280 based on Foata normal form. 2/3100 useless extension candidates. Maximal degree in co-relation 4113. Up to 588 conditions per place. [2024-10-31 22:02:57,717 INFO L140 encePairwiseOnDemand]: 367/369 looper letters, 24 selfloop transitions, 0 changer transitions 1/320 dead transitions. [2024-10-31 22:02:57,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 320 transitions, 740 flow [2024-10-31 22:02:57,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:57,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:57,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1007 transitions. [2024-10-31 22:02:57,721 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9096657633242999 [2024-10-31 22:02:57,721 INFO L175 Difference]: Start difference. First operand has 326 places, 321 transitions, 695 flow. Second operand 3 states and 1007 transitions. [2024-10-31 22:02:57,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 320 transitions, 740 flow [2024-10-31 22:02:57,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 320 transitions, 732 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-31 22:02:57,731 INFO L231 Difference]: Finished difference. Result has 325 places, 319 transitions, 682 flow [2024-10-31 22:02:57,732 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=325, PETRI_TRANSITIONS=319} [2024-10-31 22:02:57,734 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -28 predicate places. [2024-10-31 22:02:57,735 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 319 transitions, 682 flow [2024-10-31 22:02:57,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 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 22:02:57,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:57,737 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] [2024-10-31 22:02:57,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:02:57,737 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:02:57,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:57,738 INFO L85 PathProgramCache]: Analyzing trace with hash -536794802, now seen corresponding path program 1 times [2024-10-31 22:02:57,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:57,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735789656] [2024-10-31 22:02:57,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:57,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:57,828 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 22:02:57,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:57,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735789656] [2024-10-31 22:02:57,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735789656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:57,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:57,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:57,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225876165] [2024-10-31 22:02:57,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:57,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:57,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:57,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:57,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:57,850 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 369 [2024-10-31 22:02:57,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 319 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 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 22:02:57,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:57,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 369 [2024-10-31 22:02:57,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:58,538 INFO L124 PetriNetUnfolderBase]: 154/2608 cut-off events. [2024-10-31 22:02:58,538 INFO L125 PetriNetUnfolderBase]: For 210/266 co-relation queries the response was YES. [2024-10-31 22:02:58,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3110 conditions, 2608 events. 154/2608 cut-off events. For 210/266 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 20378 event pairs, 116 based on Foata normal form. 0/2260 useless extension candidates. Maximal degree in co-relation 3103. Up to 147 conditions per place. [2024-10-31 22:02:58,567 INFO L140 encePairwiseOnDemand]: 367/369 looper letters, 35 selfloop transitions, 1 changer transitions 0/335 dead transitions. [2024-10-31 22:02:58,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 335 transitions, 804 flow [2024-10-31 22:02:58,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:58,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:58,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1039 transitions. [2024-10-31 22:02:58,572 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.938572719060524 [2024-10-31 22:02:58,572 INFO L175 Difference]: Start difference. First operand has 325 places, 319 transitions, 682 flow. Second operand 3 states and 1039 transitions. [2024-10-31 22:02:58,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 335 transitions, 804 flow [2024-10-31 22:02:58,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 335 transitions, 802 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-31 22:02:58,582 INFO L231 Difference]: Finished difference. Result has 324 places, 318 transitions, 680 flow [2024-10-31 22:02:58,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=324, PETRI_TRANSITIONS=318} [2024-10-31 22:02:58,583 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -29 predicate places. [2024-10-31 22:02:58,584 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 318 transitions, 680 flow [2024-10-31 22:02:58,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 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 22:02:58,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:58,585 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] [2024-10-31 22:02:58,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:02:58,586 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:02:58,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:58,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1207613635, now seen corresponding path program 1 times [2024-10-31 22:02:58,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:58,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935035186] [2024-10-31 22:02:58,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:58,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:58,634 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 22:02:58,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:58,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935035186] [2024-10-31 22:02:58,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935035186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:58,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:58,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:58,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612010704] [2024-10-31 22:02:58,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:58,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:58,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:58,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:58,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:58,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 369 [2024-10-31 22:02:58,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 318 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 323.3333333333333) internal successors, (970), 3 states have internal predecessors, (970), 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 22:02:58,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:58,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 369 [2024-10-31 22:02:58,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:59,822 INFO L124 PetriNetUnfolderBase]: 728/5154 cut-off events. [2024-10-31 22:02:59,822 INFO L125 PetriNetUnfolderBase]: For 302/452 co-relation queries the response was YES. [2024-10-31 22:02:59,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6720 conditions, 5154 events. 728/5154 cut-off events. For 302/452 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 51509 event pairs, 644 based on Foata normal form. 0/4296 useless extension candidates. Maximal degree in co-relation 6713. Up to 1238 conditions per place. [2024-10-31 22:02:59,882 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 29 selfloop transitions, 2 changer transitions 0/317 dead transitions. [2024-10-31 22:02:59,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 317 transitions, 740 flow [2024-10-31 22:02:59,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:59,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:59,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 998 transitions. [2024-10-31 22:02:59,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9015356820234869 [2024-10-31 22:02:59,887 INFO L175 Difference]: Start difference. First operand has 324 places, 318 transitions, 680 flow. Second operand 3 states and 998 transitions. [2024-10-31 22:02:59,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 317 transitions, 740 flow [2024-10-31 22:02:59,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 317 transitions, 739 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:02:59,897 INFO L231 Difference]: Finished difference. Result has 324 places, 317 transitions, 681 flow [2024-10-31 22:02:59,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=681, PETRI_PLACES=324, PETRI_TRANSITIONS=317} [2024-10-31 22:02:59,902 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -29 predicate places. [2024-10-31 22:02:59,904 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 317 transitions, 681 flow [2024-10-31 22:02:59,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 323.3333333333333) internal successors, (970), 3 states have internal predecessors, (970), 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 22:02:59,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:59,906 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] [2024-10-31 22:02:59,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:02:59,906 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:02:59,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:59,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1681384648, now seen corresponding path program 1 times [2024-10-31 22:02:59,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:59,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945819111] [2024-10-31 22:02:59,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:59,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:59,947 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 22:02:59,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:59,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945819111] [2024-10-31 22:02:59,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945819111] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:59,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:59,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:59,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372243268] [2024-10-31 22:02:59,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:59,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:59,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:59,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:59,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:59,988 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 369 [2024-10-31 22:02:59,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 317 transitions, 681 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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 22:02:59,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:59,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 369 [2024-10-31 22:02:59,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:01,237 INFO L124 PetriNetUnfolderBase]: 710/5735 cut-off events. [2024-10-31 22:03:01,237 INFO L125 PetriNetUnfolderBase]: For 204/204 co-relation queries the response was YES. [2024-10-31 22:03:01,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7195 conditions, 5735 events. 710/5735 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 57143 event pairs, 608 based on Foata normal form. 0/4836 useless extension candidates. Maximal degree in co-relation 7188. Up to 1136 conditions per place. [2024-10-31 22:03:01,303 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 25 selfloop transitions, 2 changer transitions 0/316 dead transitions. [2024-10-31 22:03:01,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 316 transitions, 733 flow [2024-10-31 22:03:01,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:01,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:01,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1006 transitions. [2024-10-31 22:03:01,308 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9087624209575429 [2024-10-31 22:03:01,308 INFO L175 Difference]: Start difference. First operand has 324 places, 317 transitions, 681 flow. Second operand 3 states and 1006 transitions. [2024-10-31 22:03:01,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 316 transitions, 733 flow [2024-10-31 22:03:01,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 316 transitions, 729 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:01,320 INFO L231 Difference]: Finished difference. Result has 323 places, 316 transitions, 679 flow [2024-10-31 22:03:01,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=675, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=679, PETRI_PLACES=323, PETRI_TRANSITIONS=316} [2024-10-31 22:03:01,322 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -30 predicate places. [2024-10-31 22:03:01,322 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 316 transitions, 679 flow [2024-10-31 22:03:01,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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 22:03:01,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:01,324 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] [2024-10-31 22:03:01,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:03:01,325 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:03:01,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:01,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1684369097, now seen corresponding path program 1 times [2024-10-31 22:03:01,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:01,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820274314] [2024-10-31 22:03:01,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:01,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:01,377 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 22:03:01,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:01,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820274314] [2024-10-31 22:03:01,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820274314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:01,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:01,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:01,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361547386] [2024-10-31 22:03:01,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:01,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:01,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:01,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:01,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:01,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 369 [2024-10-31 22:03:01,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 316 transitions, 679 flow. Second operand has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 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 22:03:01,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:01,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 369 [2024-10-31 22:03:01,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:02,398 INFO L124 PetriNetUnfolderBase]: 548/4443 cut-off events. [2024-10-31 22:03:02,399 INFO L125 PetriNetUnfolderBase]: For 262/328 co-relation queries the response was YES. [2024-10-31 22:03:02,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5669 conditions, 4443 events. 548/4443 cut-off events. For 262/328 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 43155 event pairs, 472 based on Foata normal form. 0/3780 useless extension candidates. Maximal degree in co-relation 5662. Up to 932 conditions per place. [2024-10-31 22:03:02,455 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 26 selfloop transitions, 2 changer transitions 0/315 dead transitions. [2024-10-31 22:03:02,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 315 transitions, 733 flow [2024-10-31 22:03:02,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:02,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:02,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1004 transitions. [2024-10-31 22:03:02,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9069557362240289 [2024-10-31 22:03:02,459 INFO L175 Difference]: Start difference. First operand has 323 places, 316 transitions, 679 flow. Second operand 3 states and 1004 transitions. [2024-10-31 22:03:02,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 315 transitions, 733 flow [2024-10-31 22:03:02,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 315 transitions, 729 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:02,466 INFO L231 Difference]: Finished difference. Result has 322 places, 315 transitions, 677 flow [2024-10-31 22:03:02,467 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=677, PETRI_PLACES=322, PETRI_TRANSITIONS=315} [2024-10-31 22:03:02,468 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -31 predicate places. [2024-10-31 22:03:02,468 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 315 transitions, 677 flow [2024-10-31 22:03:02,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 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 22:03:02,469 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:02,470 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] [2024-10-31 22:03:02,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:03:02,470 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:03:02,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:02,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1005281314, now seen corresponding path program 1 times [2024-10-31 22:03:02,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:02,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130463070] [2024-10-31 22:03:02,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:02,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:02,519 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 22:03:02,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:02,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130463070] [2024-10-31 22:03:02,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130463070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:02,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:02,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:02,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132523221] [2024-10-31 22:03:02,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:02,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:02,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:02,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:02,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:02,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 369 [2024-10-31 22:03:02,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 315 transitions, 677 flow. Second operand has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 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 22:03:02,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:02,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 369 [2024-10-31 22:03:02,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:03,451 INFO L124 PetriNetUnfolderBase]: 570/5505 cut-off events. [2024-10-31 22:03:03,451 INFO L125 PetriNetUnfolderBase]: For 490/1428 co-relation queries the response was YES. [2024-10-31 22:03:03,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7038 conditions, 5505 events. 570/5505 cut-off events. For 490/1428 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 53460 event pairs, 436 based on Foata normal form. 0/4874 useless extension candidates. Maximal degree in co-relation 7031. Up to 1006 conditions per place. [2024-10-31 22:03:03,513 INFO L140 encePairwiseOnDemand]: 360/369 looper letters, 33 selfloop transitions, 1 changer transitions 0/307 dead transitions. [2024-10-31 22:03:03,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 307 transitions, 729 flow [2024-10-31 22:03:03,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:03,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:03,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2024-10-31 22:03:03,516 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8834688346883469 [2024-10-31 22:03:03,516 INFO L175 Difference]: Start difference. First operand has 322 places, 315 transitions, 677 flow. Second operand 3 states and 978 transitions. [2024-10-31 22:03:03,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 307 transitions, 729 flow [2024-10-31 22:03:03,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 307 transitions, 725 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:03,525 INFO L231 Difference]: Finished difference. Result has 314 places, 307 transitions, 659 flow [2024-10-31 22:03:03,526 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=659, PETRI_PLACES=314, PETRI_TRANSITIONS=307} [2024-10-31 22:03:03,527 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -39 predicate places. [2024-10-31 22:03:03,527 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 307 transitions, 659 flow [2024-10-31 22:03:03,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 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 22:03:03,528 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:03,528 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] [2024-10-31 22:03:03,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:03:03,528 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:03:03,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:03,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1534519347, now seen corresponding path program 1 times [2024-10-31 22:03:03,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:03,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714890792] [2024-10-31 22:03:03,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:03,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:03,575 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 22:03:03,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:03,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714890792] [2024-10-31 22:03:03,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714890792] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:03,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:03,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:03,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252614880] [2024-10-31 22:03:03,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:03,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:03,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:03,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:03,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:03,609 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 369 [2024-10-31 22:03:03,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 307 transitions, 659 flow. Second operand has 3 states, 3 states have (on average 322.0) internal successors, (966), 3 states have internal predecessors, (966), 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 22:03:03,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:03,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 369 [2024-10-31 22:03:03,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:04,301 INFO L124 PetriNetUnfolderBase]: 382/3569 cut-off events. [2024-10-31 22:03:04,301 INFO L125 PetriNetUnfolderBase]: For 446/522 co-relation queries the response was YES. [2024-10-31 22:03:04,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4652 conditions, 3569 events. 382/3569 cut-off events. For 446/522 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 30324 event pairs, 276 based on Foata normal form. 0/3238 useless extension candidates. Maximal degree in co-relation 4645. Up to 682 conditions per place. [2024-10-31 22:03:04,332 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 27 selfloop transitions, 1 changer transitions 0/302 dead transitions. [2024-10-31 22:03:04,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 302 transitions, 705 flow [2024-10-31 22:03:04,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:04,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:04,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 996 transitions. [2024-10-31 22:03:04,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8997289972899729 [2024-10-31 22:03:04,336 INFO L175 Difference]: Start difference. First operand has 314 places, 307 transitions, 659 flow. Second operand 3 states and 996 transitions. [2024-10-31 22:03:04,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 302 transitions, 705 flow [2024-10-31 22:03:04,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 302 transitions, 704 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:04,344 INFO L231 Difference]: Finished difference. Result has 310 places, 302 transitions, 650 flow [2024-10-31 22:03:04,345 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=650, PETRI_PLACES=310, PETRI_TRANSITIONS=302} [2024-10-31 22:03:04,346 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -43 predicate places. [2024-10-31 22:03:04,346 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 302 transitions, 650 flow [2024-10-31 22:03:04,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.0) internal successors, (966), 3 states have internal predecessors, (966), 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 22:03:04,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:04,347 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] [2024-10-31 22:03:04,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:03:04,348 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:03:04,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:04,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1987150306, now seen corresponding path program 1 times [2024-10-31 22:03:04,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:04,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057018896] [2024-10-31 22:03:04,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:04,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:05,094 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 22:03:05,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:05,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057018896] [2024-10-31 22:03:05,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057018896] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:05,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:05,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:03:05,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868298880] [2024-10-31 22:03:05,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:05,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:03:05,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:05,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:03:05,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:03:05,465 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 369 [2024-10-31 22:03:05,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 302 transitions, 650 flow. Second operand has 6 states, 6 states have (on average 303.6666666666667) internal successors, (1822), 6 states have internal predecessors, (1822), 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 22:03:05,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:05,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 369 [2024-10-31 22:03:05,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:09,093 INFO L124 PetriNetUnfolderBase]: 3564/20549 cut-off events. [2024-10-31 22:03:09,093 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2024-10-31 22:03:09,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26964 conditions, 20549 events. 3564/20549 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 259523 event pairs, 3146 based on Foata normal form. 0/18494 useless extension candidates. Maximal degree in co-relation 26957. Up to 5453 conditions per place. [2024-10-31 22:03:09,223 INFO L140 encePairwiseOnDemand]: 362/369 looper letters, 69 selfloop transitions, 6 changer transitions 0/325 dead transitions. [2024-10-31 22:03:09,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 325 transitions, 846 flow [2024-10-31 22:03:09,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:03:09,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:03:09,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1888 transitions. [2024-10-31 22:03:09,230 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8527551942186089 [2024-10-31 22:03:09,231 INFO L175 Difference]: Start difference. First operand has 310 places, 302 transitions, 650 flow. Second operand 6 states and 1888 transitions. [2024-10-31 22:03:09,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 325 transitions, 846 flow [2024-10-31 22:03:09,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 325 transitions, 845 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:09,248 INFO L231 Difference]: Finished difference. Result has 313 places, 301 transitions, 659 flow [2024-10-31 22:03:09,249 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=659, PETRI_PLACES=313, PETRI_TRANSITIONS=301} [2024-10-31 22:03:09,249 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -40 predicate places. [2024-10-31 22:03:09,250 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 301 transitions, 659 flow [2024-10-31 22:03:09,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 303.6666666666667) internal successors, (1822), 6 states have internal predecessors, (1822), 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 22:03:09,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:09,252 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] [2024-10-31 22:03:09,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:03:09,253 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:03:09,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:09,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1365917146, now seen corresponding path program 1 times [2024-10-31 22:03:09,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:09,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132444370] [2024-10-31 22:03:09,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:09,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:09,431 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 22:03:09,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:09,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132444370] [2024-10-31 22:03:09,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132444370] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:09,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:09,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:03:09,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096910871] [2024-10-31 22:03:09,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:09,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:09,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:09,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:09,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:09,602 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 369 [2024-10-31 22:03:09,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 301 transitions, 659 flow. Second operand has 4 states, 4 states have (on average 323.5) internal successors, (1294), 4 states have internal predecessors, (1294), 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 22:03:09,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:09,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 369 [2024-10-31 22:03:09,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:10,769 INFO L124 PetriNetUnfolderBase]: 842/6391 cut-off events. [2024-10-31 22:03:10,770 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2024-10-31 22:03:10,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8134 conditions, 6391 events. 842/6391 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 64485 event pairs, 643 based on Foata normal form. 50/5862 useless extension candidates. Maximal degree in co-relation 8127. Up to 913 conditions per place. [2024-10-31 22:03:10,805 INFO L140 encePairwiseOnDemand]: 356/369 looper letters, 64 selfloop transitions, 11 changer transitions 1/345 dead transitions. [2024-10-31 22:03:10,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 345 transitions, 923 flow [2024-10-31 22:03:10,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:10,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:03:10,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1366 transitions. [2024-10-31 22:03:10,810 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9254742547425474 [2024-10-31 22:03:10,810 INFO L175 Difference]: Start difference. First operand has 313 places, 301 transitions, 659 flow. Second operand 4 states and 1366 transitions. [2024-10-31 22:03:10,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 345 transitions, 923 flow [2024-10-31 22:03:10,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 345 transitions, 911 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:03:10,820 INFO L231 Difference]: Finished difference. Result has 313 places, 310 transitions, 729 flow [2024-10-31 22:03:10,820 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=729, PETRI_PLACES=313, PETRI_TRANSITIONS=310} [2024-10-31 22:03:10,821 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -40 predicate places. [2024-10-31 22:03:10,821 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 310 transitions, 729 flow [2024-10-31 22:03:10,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 323.5) internal successors, (1294), 4 states have internal predecessors, (1294), 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 22:03:10,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:10,823 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] [2024-10-31 22:03:10,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:03:10,823 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting funcAErr1ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:03:10,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:10,824 INFO L85 PathProgramCache]: Analyzing trace with hash -67031606, now seen corresponding path program 1 times [2024-10-31 22:03:10,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:10,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075238520] [2024-10-31 22:03:10,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:10,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:10,897 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 22:03:10,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:10,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075238520] [2024-10-31 22:03:10,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075238520] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:10,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:10,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:10,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902121788] [2024-10-31 22:03:10,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:10,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:10,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:10,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:10,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:10,946 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 369 [2024-10-31 22:03:10,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 310 transitions, 729 flow. Second operand has 3 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 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 22:03:10,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:10,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 369 [2024-10-31 22:03:10,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:11,764 INFO L124 PetriNetUnfolderBase]: 306/3163 cut-off events. [2024-10-31 22:03:11,764 INFO L125 PetriNetUnfolderBase]: For 297/481 co-relation queries the response was YES. [2024-10-31 22:03:11,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4220 conditions, 3163 events. 306/3163 cut-off events. For 297/481 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 26629 event pairs, 204 based on Foata normal form. 2/2898 useless extension candidates. Maximal degree in co-relation 4211. Up to 523 conditions per place. [2024-10-31 22:03:11,791 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 32 selfloop transitions, 5 changer transitions 0/322 dead transitions. [2024-10-31 22:03:11,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 322 transitions, 836 flow [2024-10-31 22:03:11,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:11,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:11,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1025 transitions. [2024-10-31 22:03:11,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2024-10-31 22:03:11,796 INFO L175 Difference]: Start difference. First operand has 313 places, 310 transitions, 729 flow. Second operand 3 states and 1025 transitions. [2024-10-31 22:03:11,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 322 transitions, 836 flow [2024-10-31 22:03:11,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 322 transitions, 834 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:11,807 INFO L231 Difference]: Finished difference. Result has 316 places, 314 transitions, 765 flow [2024-10-31 22:03:11,808 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=765, PETRI_PLACES=316, PETRI_TRANSITIONS=314} [2024-10-31 22:03:11,809 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -37 predicate places. [2024-10-31 22:03:11,809 INFO L471 AbstractCegarLoop]: Abstraction has has 316 places, 314 transitions, 765 flow [2024-10-31 22:03:11,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 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 22:03:11,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:11,811 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:11,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:03:11,812 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-31 22:03:11,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:11,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1639105714, now seen corresponding path program 1 times [2024-10-31 22:03:11,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:11,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342803807] [2024-10-31 22:03:11,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:11,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:11,866 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:11,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:11,949 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:03:11,950 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2024-10-31 22:03:11,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2024-10-31 22:03:11,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2024-10-31 22:03:11,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2024-10-31 22:03:11,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr3ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2024-10-31 22:03:11,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr4ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2024-10-31 22:03:11,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr5ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2024-10-31 22:03:11,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr6ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2024-10-31 22:03:11,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr7ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2024-10-31 22:03:11,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr8ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2024-10-31 22:03:11,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2024-10-31 22:03:11,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2024-10-31 22:03:11,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2024-10-31 22:03:11,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2024-10-31 22:03:11,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2024-10-31 22:03:11,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2024-10-31 22:03:11,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2024-10-31 22:03:11,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2024-10-31 22:03:11,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2024-10-31 22:03:11,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2024-10-31 22:03:11,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2024-10-31 22:03:11,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2024-10-31 22:03:11,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2024-10-31 22:03:11,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2024-10-31 22:03:11,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2024-10-31 22:03:11,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2024-10-31 22:03:11,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2024-10-31 22:03:11,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2024-10-31 22:03:11,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2024-10-31 22:03:11,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2024-10-31 22:03:11,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2024-10-31 22:03:11,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2024-10-31 22:03:11,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2024-10-31 22:03:11,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2024-10-31 22:03:11,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2024-10-31 22:03:11,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2024-10-31 22:03:11,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2024-10-31 22:03:11,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 65 remaining) [2024-10-31 22:03:11,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2024-10-31 22:03:11,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr1ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2024-10-31 22:03:11,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr2ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2024-10-31 22:03:11,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr3ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2024-10-31 22:03:11,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr4ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2024-10-31 22:03:11,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr5ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2024-10-31 22:03:11,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr6ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2024-10-31 22:03:11,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr7ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2024-10-31 22:03:11,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr8ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2024-10-31 22:03:11,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr0ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2024-10-31 22:03:11,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr1ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2024-10-31 22:03:11,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr2ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2024-10-31 22:03:11,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr3ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2024-10-31 22:03:11,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr4ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2024-10-31 22:03:11,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr5ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2024-10-31 22:03:11,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr6ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2024-10-31 22:03:11,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr7ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2024-10-31 22:03:11,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr8ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2024-10-31 22:03:11,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2024-10-31 22:03:11,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr1ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2024-10-31 22:03:11,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr2ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2024-10-31 22:03:11,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr3ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2024-10-31 22:03:11,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr4ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2024-10-31 22:03:11,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr5ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2024-10-31 22:03:11,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr6ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2024-10-31 22:03:11,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr7ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2024-10-31 22:03:11,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr8ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2024-10-31 22:03:11,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:03:11,979 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:11,982 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:03:11,983 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:03:12,077 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-10-31 22:03:12,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 463 places, 482 transitions, 1008 flow [2024-10-31 22:03:12,618 INFO L124 PetriNetUnfolderBase]: 163/1982 cut-off events. [2024-10-31 22:03:12,618 INFO L125 PetriNetUnfolderBase]: For 72/74 co-relation queries the response was YES. [2024-10-31 22:03:12,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2071 conditions, 1982 events. 163/1982 cut-off events. For 72/74 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 12454 event pairs, 1 based on Foata normal form. 0/1619 useless extension candidates. Maximal degree in co-relation 1175. Up to 32 conditions per place. [2024-10-31 22:03:12,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 463 places, 482 transitions, 1008 flow [2024-10-31 22:03:12,676 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 463 places, 482 transitions, 1008 flow [2024-10-31 22:03:12,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:03:12,678 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;@7f4a8eca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:03:12,678 INFO L334 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2024-10-31 22:03:12,680 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:03:12,680 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-10-31 22:03:12,681 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:03:12,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:12,681 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] [2024-10-31 22:03:12,681 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-10-31 22:03:12,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:12,681 INFO L85 PathProgramCache]: Analyzing trace with hash -2114103926, now seen corresponding path program 1 times [2024-10-31 22:03:12,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:12,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123316477] [2024-10-31 22:03:12,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:12,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:12,701 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 22:03:12,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:12,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123316477] [2024-10-31 22:03:12,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123316477] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:12,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:12,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:12,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524296784] [2024-10-31 22:03:12,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:12,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:12,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:12,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:12,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:12,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 482 [2024-10-31 22:03:12,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 482 transitions, 1008 flow. Second operand has 3 states, 3 states have (on average 417.6666666666667) internal successors, (1253), 3 states have internal predecessors, (1253), 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 22:03:12,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:12,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 482 [2024-10-31 22:03:12,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand