./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_09-arraylist.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/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_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_09-arraylist.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/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_0c0960d0-523d-4631-bc86-08554fb1c088/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 bbb47797d2c6a4d5e961c4dfd7a8e6f4ff79c632e04c289068b1b9e8cca736fa --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:01:37,825 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:01:37,921 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:01:37,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:01:37,928 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:01:37,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:01:37,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:01:37,978 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:01:37,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:01:37,980 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:01:37,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:01:37,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:01:37,981 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:01:37,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:01:37,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:01:37,983 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:01:37,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:01:37,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:01:37,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:01:37,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:01:37,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:01:37,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:01:37,991 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:01:37,992 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:01:37,992 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:01:37,992 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:01:37,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:01:37,993 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:01:37,994 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:01:38,003 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:01:38,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:01:38,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:01:38,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:01:38,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:01:38,005 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:01:38,005 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:01:38,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:01:38,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:01:38,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:01:38,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:01:38,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:01:38,007 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_0c0960d0-523d-4631-bc86-08554fb1c088/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbb47797d2c6a4d5e961c4dfd7a8e6f4ff79c632e04c289068b1b9e8cca736fa [2024-10-31 22:01:38,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:01:38,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:01:38,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:01:38,328 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:01:38,328 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:01:38,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/09-regions_09-arraylist.i Unable to find full path for "g++" [2024-10-31 22:01:40,399 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:01:40,683 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:01:40,684 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/sv-benchmarks/c/goblint-regression/09-regions_09-arraylist.i [2024-10-31 22:01:40,704 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/data/a916f58d7/b670aaa4c8f14586a5f402cc02614652/FLAGa0d4e5ae7 [2024-10-31 22:01:40,730 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/data/a916f58d7/b670aaa4c8f14586a5f402cc02614652 [2024-10-31 22:01:40,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:01:40,734 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:01:40,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:40,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:01:40,742 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:01:40,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:40" (1/1) ... [2024-10-31 22:01:40,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e685f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:40, skipping insertion in model container [2024-10-31 22:01:40,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:40" (1/1) ... [2024-10-31 22:01:40,815 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:01:41,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:41,632 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:01:41,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:41,803 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:01:41,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:41 WrapperNode [2024-10-31 22:01:41,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:41,805 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:41,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:01:41,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:01:41,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:41" (1/1) ... [2024-10-31 22:01:41,837 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:41" (1/1) ... [2024-10-31 22:01:41,915 INFO L138 Inliner]: procedures = 372, calls = 43, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 245 [2024-10-31 22:01:41,915 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:41,916 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:01:41,916 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:01:41,917 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:01:41,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:41" (1/1) ... [2024-10-31 22:01:41,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:41" (1/1) ... [2024-10-31 22:01:41,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:41" (1/1) ... [2024-10-31 22:01:41,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:41" (1/1) ... [2024-10-31 22:01:41,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:41" (1/1) ... [2024-10-31 22:01:41,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:41" (1/1) ... [2024-10-31 22:01:41,985 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:41" (1/1) ... [2024-10-31 22:01:41,987 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:41" (1/1) ... [2024-10-31 22:01:41,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:01:41,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:01:41,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:01:41,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:01:41,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:41" (1/1) ... [2024-10-31 22:01:42,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:01:42,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:42,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:42,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:01:42,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-31 22:01:42,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-10-31 22:01:42,065 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:01:42,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:01:42,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:01:42,066 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:01:42,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:01:42,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:01:42,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-31 22:01:42,067 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 22:01:42,067 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 22:01:42,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:01:42,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:01:42,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:01:42,069 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 22:01:42,222 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:01:42,225 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:01:42,846 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:01:42,847 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:01:42,894 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:01:42,894 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:01:42,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:42 BoogieIcfgContainer [2024-10-31 22:01:42,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:01:42,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:01:42,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:01:42,904 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:01:42,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:01:40" (1/3) ... [2024-10-31 22:01:42,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df7bc5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:01:42, skipping insertion in model container [2024-10-31 22:01:42,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:41" (2/3) ... [2024-10-31 22:01:42,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df7bc5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:01:42, skipping insertion in model container [2024-10-31 22:01:42,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:42" (3/3) ... [2024-10-31 22:01:42,908 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_09-arraylist.i [2024-10-31 22:01:42,927 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:01:42,928 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-31 22:01:42,929 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:01:43,042 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:01:43,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 287 places, 287 transitions, 578 flow [2024-10-31 22:01:43,232 INFO L124 PetriNetUnfolderBase]: 4/286 cut-off events. [2024-10-31 22:01:43,233 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:01:43,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 286 events. 4/286 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 390 event pairs, 0 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 158. Up to 2 conditions per place. [2024-10-31 22:01:43,242 INFO L82 GeneralOperation]: Start removeDead. Operand has 287 places, 287 transitions, 578 flow [2024-10-31 22:01:43,252 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 286 places, 286 transitions, 575 flow [2024-10-31 22:01:43,265 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:01:43,277 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;@4322e857, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:01:43,277 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-10-31 22:01:43,301 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:01:43,301 INFO L124 PetriNetUnfolderBase]: 2/75 cut-off events. [2024-10-31 22:01:43,302 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:01:43,302 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:43,303 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] [2024-10-31 22:01:43,303 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-31 22:01:43,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:43,310 INFO L85 PathProgramCache]: Analyzing trace with hash 450819610, now seen corresponding path program 1 times [2024-10-31 22:01:43,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:43,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187486526] [2024-10-31 22:01:43,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:43,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:44,484 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 22:01:44,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:44,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187486526] [2024-10-31 22:01:44,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187486526] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:44,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:44,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:01:44,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597252749] [2024-10-31 22:01:44,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:44,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:01:44,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:44,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:01:44,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:01:45,269 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 287 [2024-10-31 22:01:45,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 286 transitions, 575 flow. Second operand has 6 states, 6 states have (on average 202.33333333333334) internal successors, (1214), 6 states have internal predecessors, (1214), 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 22:01:45,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:01:45,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 287 [2024-10-31 22:01:45,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:01:45,689 INFO L124 PetriNetUnfolderBase]: 365/1634 cut-off events. [2024-10-31 22:01:45,690 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:01:45,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2448 conditions, 1634 events. 365/1634 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10010 event pairs, 364 based on Foata normal form. 12/1519 useless extension candidates. Maximal degree in co-relation 2247. Up to 800 conditions per place. [2024-10-31 22:01:45,707 INFO L140 encePairwiseOnDemand]: 272/287 looper letters, 71 selfloop transitions, 10 changer transitions 1/281 dead transitions. [2024-10-31 22:01:45,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 281 transitions, 727 flow [2024-10-31 22:01:45,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:01:45,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:01:45,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1292 transitions. [2024-10-31 22:01:45,750 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7502903600464577 [2024-10-31 22:01:45,752 INFO L175 Difference]: Start difference. First operand has 286 places, 286 transitions, 575 flow. Second operand 6 states and 1292 transitions. [2024-10-31 22:01:45,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 281 transitions, 727 flow [2024-10-31 22:01:45,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 281 transitions, 726 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:01:45,769 INFO L231 Difference]: Finished difference. Result has 288 places, 280 transitions, 582 flow [2024-10-31 22:01:45,772 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=582, PETRI_PLACES=288, PETRI_TRANSITIONS=280} [2024-10-31 22:01:45,778 INFO L277 CegarLoopForPetriNet]: 286 programPoint places, 2 predicate places. [2024-10-31 22:01:45,779 INFO L471 AbstractCegarLoop]: Abstraction has has 288 places, 280 transitions, 582 flow [2024-10-31 22:01:45,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 202.33333333333334) internal successors, (1214), 6 states have internal predecessors, (1214), 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 22:01:45,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:45,781 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] [2024-10-31 22:01:45,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:01:45,782 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-31 22:01:45,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:45,783 INFO L85 PathProgramCache]: Analyzing trace with hash -356586071, now seen corresponding path program 1 times [2024-10-31 22:01:45,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:45,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949096237] [2024-10-31 22:01:45,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:45,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:45,897 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 22:01:45,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:45,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949096237] [2024-10-31 22:01:45,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949096237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:45,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:45,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:01:45,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803324664] [2024-10-31 22:01:45,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:45,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:01:45,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:45,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:45,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:45,953 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 287 [2024-10-31 22:01:45,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 280 transitions, 582 flow. Second operand has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 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 22:01:45,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:01:45,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 287 [2024-10-31 22:01:45,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:01:46,082 INFO L124 PetriNetUnfolderBase]: 7/467 cut-off events. [2024-10-31 22:01:46,082 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:01:46,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 467 events. 7/467 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 857 event pairs, 6 based on Foata normal form. 1/434 useless extension candidates. Maximal degree in co-relation 299. Up to 24 conditions per place. [2024-10-31 22:01:46,084 INFO L140 encePairwiseOnDemand]: 284/287 looper letters, 10 selfloop transitions, 2 changer transitions 0/281 dead transitions. [2024-10-31 22:01:46,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 281 transitions, 608 flow [2024-10-31 22:01:46,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:46,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:01:46,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 832 transitions. [2024-10-31 22:01:46,088 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9663182346109176 [2024-10-31 22:01:46,088 INFO L175 Difference]: Start difference. First operand has 288 places, 280 transitions, 582 flow. Second operand 3 states and 832 transitions. [2024-10-31 22:01:46,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 281 transitions, 608 flow [2024-10-31 22:01:46,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 281 transitions, 588 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:01:46,098 INFO L231 Difference]: Finished difference. Result has 285 places, 281 transitions, 574 flow [2024-10-31 22:01:46,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=574, PETRI_PLACES=285, PETRI_TRANSITIONS=281} [2024-10-31 22:01:46,100 INFO L277 CegarLoopForPetriNet]: 286 programPoint places, -1 predicate places. [2024-10-31 22:01:46,100 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 281 transitions, 574 flow [2024-10-31 22:01:46,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 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 22:01:46,101 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:46,101 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] [2024-10-31 22:01:46,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:01:46,102 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-31 22:01:46,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:46,103 INFO L85 PathProgramCache]: Analyzing trace with hash 230823402, now seen corresponding path program 1 times [2024-10-31 22:01:46,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:46,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651120290] [2024-10-31 22:01:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:46,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:46,635 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 22:01:46,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:46,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651120290] [2024-10-31 22:01:46,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651120290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:46,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:46,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:01:46,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789686918] [2024-10-31 22:01:46,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:46,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:01:46,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:46,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:01:46,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:01:47,258 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 287 [2024-10-31 22:01:47,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 281 transitions, 574 flow. Second operand has 6 states, 6 states have (on average 202.33333333333334) internal successors, (1214), 6 states have internal predecessors, (1214), 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 22:01:47,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:01:47,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 287 [2024-10-31 22:01:47,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:01:47,792 INFO L124 PetriNetUnfolderBase]: 365/1740 cut-off events. [2024-10-31 22:01:47,792 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:01:47,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2600 conditions, 1740 events. 365/1740 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10020 event pairs, 364 based on Foata normal form. 0/1612 useless extension candidates. Maximal degree in co-relation 2408. Up to 830 conditions per place. [2024-10-31 22:01:47,801 INFO L140 encePairwiseOnDemand]: 275/287 looper letters, 71 selfloop transitions, 10 changer transitions 0/279 dead transitions. [2024-10-31 22:01:47,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 279 transitions, 732 flow [2024-10-31 22:01:47,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:01:47,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:01:47,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1289 transitions. [2024-10-31 22:01:47,806 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7485481997677119 [2024-10-31 22:01:47,806 INFO L175 Difference]: Start difference. First operand has 285 places, 281 transitions, 574 flow. Second operand 6 states and 1289 transitions. [2024-10-31 22:01:47,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 279 transitions, 732 flow [2024-10-31 22:01:47,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 279 transitions, 730 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:01:47,813 INFO L231 Difference]: Finished difference. Result has 287 places, 279 transitions, 588 flow [2024-10-31 22:01:47,813 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=588, PETRI_PLACES=287, PETRI_TRANSITIONS=279} [2024-10-31 22:01:47,815 INFO L277 CegarLoopForPetriNet]: 286 programPoint places, 1 predicate places. [2024-10-31 22:01:47,816 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 279 transitions, 588 flow [2024-10-31 22:01:47,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 202.33333333333334) internal successors, (1214), 6 states have internal predecessors, (1214), 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 22:01:47,817 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:47,817 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 22:01:47,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:01:47,818 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-31 22:01:47,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:47,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1027917716, now seen corresponding path program 1 times [2024-10-31 22:01:47,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:47,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970162295] [2024-10-31 22:01:47,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:47,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:48,425 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 22:01:48,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:48,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970162295] [2024-10-31 22:01:48,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970162295] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:48,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:48,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:01:48,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564425628] [2024-10-31 22:01:48,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:48,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:01:48,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:48,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:01:48,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:01:49,029 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 287 [2024-10-31 22:01:49,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 279 transitions, 588 flow. Second operand has 6 states, 6 states have (on average 198.83333333333334) internal successors, (1193), 6 states have internal predecessors, (1193), 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 22:01:49,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:01:49,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 287 [2024-10-31 22:01:49,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:01:49,542 INFO L124 PetriNetUnfolderBase]: 391/1828 cut-off events. [2024-10-31 22:01:49,542 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 22:01:49,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2766 conditions, 1828 events. 391/1828 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 10773 event pairs, 390 based on Foata normal form. 0/1696 useless extension candidates. Maximal degree in co-relation 2491. Up to 899 conditions per place. [2024-10-31 22:01:49,553 INFO L140 encePairwiseOnDemand]: 281/287 looper letters, 83 selfloop transitions, 5 changer transitions 0/278 dead transitions. [2024-10-31 22:01:49,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 278 transitions, 762 flow [2024-10-31 22:01:49,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:01:49,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:01:49,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1264 transitions. [2024-10-31 22:01:49,557 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7340301974448316 [2024-10-31 22:01:49,558 INFO L175 Difference]: Start difference. First operand has 287 places, 279 transitions, 588 flow. Second operand 6 states and 1264 transitions. [2024-10-31 22:01:49,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 278 transitions, 762 flow [2024-10-31 22:01:49,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 278 transitions, 742 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:01:49,604 INFO L231 Difference]: Finished difference. Result has 286 places, 278 transitions, 576 flow [2024-10-31 22:01:49,605 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=576, PETRI_PLACES=286, PETRI_TRANSITIONS=278} [2024-10-31 22:01:49,607 INFO L277 CegarLoopForPetriNet]: 286 programPoint places, 0 predicate places. [2024-10-31 22:01:49,607 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 278 transitions, 576 flow [2024-10-31 22:01:49,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.83333333333334) internal successors, (1193), 6 states have internal predecessors, (1193), 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 22:01:49,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:49,616 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:49,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:01:49,616 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-31 22:01:49,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:49,617 INFO L85 PathProgramCache]: Analyzing trace with hash -948202354, now seen corresponding path program 1 times [2024-10-31 22:01:49,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:49,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081111526] [2024-10-31 22:01:49,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:49,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:50,540 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 22:01:50,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:50,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081111526] [2024-10-31 22:01:50,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081111526] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:50,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:50,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:01:50,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265825956] [2024-10-31 22:01:50,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:50,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:01:50,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:50,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:01:50,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:01:51,448 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 287 [2024-10-31 22:01:51,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 278 transitions, 576 flow. Second operand has 6 states, 6 states have (on average 226.83333333333334) internal successors, (1361), 6 states have internal predecessors, (1361), 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 22:01:51,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:01:51,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 287 [2024-10-31 22:01:51,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:01:51,673 INFO L124 PetriNetUnfolderBase]: 55/702 cut-off events. [2024-10-31 22:01:51,674 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-31 22:01:51,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 702 events. 55/702 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2613 event pairs, 54 based on Foata normal form. 0/650 useless extension candidates. Maximal degree in co-relation 717. Up to 195 conditions per place. [2024-10-31 22:01:51,677 INFO L140 encePairwiseOnDemand]: 281/287 looper letters, 57 selfloop transitions, 5 changer transitions 0/277 dead transitions. [2024-10-31 22:01:51,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 277 transitions, 698 flow [2024-10-31 22:01:51,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:01:51,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:01:51,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1394 transitions. [2024-10-31 22:01:51,681 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8095238095238095 [2024-10-31 22:01:51,682 INFO L175 Difference]: Start difference. First operand has 286 places, 278 transitions, 576 flow. Second operand 6 states and 1394 transitions. [2024-10-31 22:01:51,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 277 transitions, 698 flow [2024-10-31 22:01:51,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 277 transitions, 688 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:01:51,688 INFO L231 Difference]: Finished difference. Result has 285 places, 277 transitions, 574 flow [2024-10-31 22:01:51,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=574, PETRI_PLACES=285, PETRI_TRANSITIONS=277} [2024-10-31 22:01:51,689 INFO L277 CegarLoopForPetriNet]: 286 programPoint places, -1 predicate places. [2024-10-31 22:01:51,689 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 277 transitions, 574 flow [2024-10-31 22:01:51,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 226.83333333333334) internal successors, (1361), 6 states have internal predecessors, (1361), 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 22:01:51,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:51,691 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:51,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:01:51,692 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-31 22:01:51,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:51,693 INFO L85 PathProgramCache]: Analyzing trace with hash 2127202176, now seen corresponding path program 1 times [2024-10-31 22:01:51,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:51,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116079310] [2024-10-31 22:01:51,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:51,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:52,381 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 22:01:52,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:52,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116079310] [2024-10-31 22:01:52,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116079310] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:52,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:52,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:01:52,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971856615] [2024-10-31 22:01:52,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:52,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:01:52,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:52,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:01:52,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:01:53,122 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 287 [2024-10-31 22:01:53,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 277 transitions, 574 flow. Second operand has 6 states, 6 states have (on average 229.5) internal successors, (1377), 6 states have internal predecessors, (1377), 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 22:01:53,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:01:53,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 287 [2024-10-31 22:01:53,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:01:53,337 INFO L124 PetriNetUnfolderBase]: 37/617 cut-off events. [2024-10-31 22:01:53,337 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:01:53,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 804 conditions, 617 events. 37/617 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2084 event pairs, 36 based on Foata normal form. 0/578 useless extension candidates. Maximal degree in co-relation 581. Up to 158 conditions per place. [2024-10-31 22:01:53,340 INFO L140 encePairwiseOnDemand]: 281/287 looper letters, 53 selfloop transitions, 5 changer transitions 0/276 dead transitions. [2024-10-31 22:01:53,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 276 transitions, 688 flow [2024-10-31 22:01:53,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:01:53,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:01:53,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1409 transitions. [2024-10-31 22:01:53,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8182346109175378 [2024-10-31 22:01:53,344 INFO L175 Difference]: Start difference. First operand has 285 places, 277 transitions, 574 flow. Second operand 6 states and 1409 transitions. [2024-10-31 22:01:53,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 276 transitions, 688 flow [2024-10-31 22:01:53,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 276 transitions, 678 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:01:53,350 INFO L231 Difference]: Finished difference. Result has 284 places, 276 transitions, 572 flow [2024-10-31 22:01:53,351 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=572, PETRI_PLACES=284, PETRI_TRANSITIONS=276} [2024-10-31 22:01:53,352 INFO L277 CegarLoopForPetriNet]: 286 programPoint places, -2 predicate places. [2024-10-31 22:01:53,352 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 276 transitions, 572 flow [2024-10-31 22:01:53,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.5) internal successors, (1377), 6 states have internal predecessors, (1377), 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 22:01:53,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:53,354 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:53,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:01:53,354 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-31 22:01:53,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:53,354 INFO L85 PathProgramCache]: Analyzing trace with hash -2120160149, now seen corresponding path program 1 times [2024-10-31 22:01:53,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:53,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866949595] [2024-10-31 22:01:53,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:53,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:54,082 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 22:01:54,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:54,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866949595] [2024-10-31 22:01:54,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866949595] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:54,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:54,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:01:54,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787778685] [2024-10-31 22:01:54,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:54,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:01:54,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:54,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:01:54,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:01:54,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 287 [2024-10-31 22:01:54,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 276 transitions, 572 flow. Second operand has 6 states, 6 states have (on average 205.16666666666666) internal successors, (1231), 6 states have internal predecessors, (1231), 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 22:01:54,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:01:54,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 287 [2024-10-31 22:01:54,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:01:54,926 INFO L124 PetriNetUnfolderBase]: 365/1732 cut-off events. [2024-10-31 22:01:54,926 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:01:54,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2607 conditions, 1732 events. 365/1732 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9954 event pairs, 364 based on Foata normal form. 0/1612 useless extension candidates. Maximal degree in co-relation 2390. Up to 846 conditions per place. [2024-10-31 22:01:54,935 INFO L140 encePairwiseOnDemand]: 281/287 looper letters, 79 selfloop transitions, 5 changer transitions 0/275 dead transitions. [2024-10-31 22:01:54,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 275 transitions, 738 flow [2024-10-31 22:01:54,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:01:54,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:01:54,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1279 transitions. [2024-10-31 22:01:54,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7427409988385598 [2024-10-31 22:01:54,940 INFO L175 Difference]: Start difference. First operand has 284 places, 276 transitions, 572 flow. Second operand 6 states and 1279 transitions. [2024-10-31 22:01:54,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 275 transitions, 738 flow [2024-10-31 22:01:54,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 275 transitions, 728 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:01:54,946 INFO L231 Difference]: Finished difference. Result has 283 places, 275 transitions, 570 flow [2024-10-31 22:01:54,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=570, PETRI_PLACES=283, PETRI_TRANSITIONS=275} [2024-10-31 22:01:54,948 INFO L277 CegarLoopForPetriNet]: 286 programPoint places, -3 predicate places. [2024-10-31 22:01:54,948 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 275 transitions, 570 flow [2024-10-31 22:01:54,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 205.16666666666666) internal successors, (1231), 6 states have internal predecessors, (1231), 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 22:01:54,949 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:54,949 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:54,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:01:54,950 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-31 22:01:54,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:54,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1126664922, now seen corresponding path program 1 times [2024-10-31 22:01:54,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:54,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071494416] [2024-10-31 22:01:54,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:54,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:55,672 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 22:01:55,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:55,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071494416] [2024-10-31 22:01:55,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071494416] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:55,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:55,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:01:55,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817042686] [2024-10-31 22:01:55,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:55,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:01:55,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:55,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:01:55,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:01:56,124 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 287 [2024-10-31 22:01:56,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 275 transitions, 570 flow. Second operand has 6 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 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 22:01:56,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:01:56,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 287 [2024-10-31 22:01:56,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:01:56,558 INFO L124 PetriNetUnfolderBase]: 365/1730 cut-off events. [2024-10-31 22:01:56,558 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:01:56,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2603 conditions, 1730 events. 365/1730 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9944 event pairs, 364 based on Foata normal form. 0/1612 useless extension candidates. Maximal degree in co-relation 2395. Up to 844 conditions per place. [2024-10-31 22:01:56,566 INFO L140 encePairwiseOnDemand]: 281/287 looper letters, 78 selfloop transitions, 5 changer transitions 0/274 dead transitions. [2024-10-31 22:01:56,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 274 transitions, 734 flow [2024-10-31 22:01:56,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:01:56,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:01:56,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1284 transitions. [2024-10-31 22:01:56,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7456445993031359 [2024-10-31 22:01:56,570 INFO L175 Difference]: Start difference. First operand has 283 places, 275 transitions, 570 flow. Second operand 6 states and 1284 transitions. [2024-10-31 22:01:56,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 274 transitions, 734 flow [2024-10-31 22:01:56,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 274 transitions, 724 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:01:56,576 INFO L231 Difference]: Finished difference. Result has 282 places, 274 transitions, 568 flow [2024-10-31 22:01:56,576 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=568, PETRI_PLACES=282, PETRI_TRANSITIONS=274} [2024-10-31 22:01:56,577 INFO L277 CegarLoopForPetriNet]: 286 programPoint places, -4 predicate places. [2024-10-31 22:01:56,577 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 274 transitions, 568 flow [2024-10-31 22:01:56,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 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 22:01:56,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:56,578 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:56,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:01:56,579 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-31 22:01:56,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:56,579 INFO L85 PathProgramCache]: Analyzing trace with hash 488488273, now seen corresponding path program 1 times [2024-10-31 22:01:56,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:56,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000102291] [2024-10-31 22:01:56,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:56,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:56,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:56,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:56,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000102291] [2024-10-31 22:01:56,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000102291] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:56,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198688289] [2024-10-31 22:01:56,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:56,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:56,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:56,810 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:56,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:01:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:57,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:57,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:57,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:57,387 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:57,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:57,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198688289] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:57,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:57,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-31 22:01:57,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597412310] [2024-10-31 22:01:57,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:57,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:01:57,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:57,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:01:57,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:01:57,789 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 287 [2024-10-31 22:01:57,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 274 transitions, 568 flow. Second operand has 10 states, 10 states have (on average 272.0) internal successors, (2720), 10 states have internal predecessors, (2720), 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 22:01:57,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:01:57,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 287 [2024-10-31 22:01:57,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:01:57,986 INFO L124 PetriNetUnfolderBase]: 7/560 cut-off events. [2024-10-31 22:01:57,987 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:01:57,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 560 events. 7/560 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 385 event pairs, 6 based on Foata normal form. 2/542 useless extension candidates. Maximal degree in co-relation 244. Up to 24 conditions per place. [2024-10-31 22:01:57,989 INFO L140 encePairwiseOnDemand]: 281/287 looper letters, 14 selfloop transitions, 9 changer transitions 0/282 dead transitions. [2024-10-31 22:01:57,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 282 transitions, 632 flow [2024-10-31 22:01:57,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:01:57,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:01:57,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2455 transitions. [2024-10-31 22:01:57,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9504452187379017 [2024-10-31 22:01:57,995 INFO L175 Difference]: Start difference. First operand has 282 places, 274 transitions, 568 flow. Second operand 9 states and 2455 transitions. [2024-10-31 22:01:57,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 282 transitions, 632 flow [2024-10-31 22:01:57,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 282 transitions, 622 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:01:58,001 INFO L231 Difference]: Finished difference. Result has 288 places, 280 transitions, 608 flow [2024-10-31 22:01:58,002 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=608, PETRI_PLACES=288, PETRI_TRANSITIONS=280} [2024-10-31 22:01:58,004 INFO L277 CegarLoopForPetriNet]: 286 programPoint places, 2 predicate places. [2024-10-31 22:01:58,004 INFO L471 AbstractCegarLoop]: Abstraction has has 288 places, 280 transitions, 608 flow [2024-10-31 22:01:58,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 272.0) internal successors, (2720), 10 states have internal predecessors, (2720), 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 22:01:58,007 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:58,008 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:01:58,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:01:58,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:58,211 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-31 22:01:58,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:58,212 INFO L85 PathProgramCache]: Analyzing trace with hash -822255535, now seen corresponding path program 2 times [2024-10-31 22:01:58,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:58,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882006466] [2024-10-31 22:01:58,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:58,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:59,084 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:59,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:59,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882006466] [2024-10-31 22:01:59,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882006466] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:59,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843105515] [2024-10-31 22:01:59,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:01:59,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:59,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:59,088 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:59,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:01:59,366 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:01:59,367 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:01:59,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-31 22:01:59,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:59,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-31 22:01:59,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-31 22:01:59,492 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:01:59,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-31 22:01:59,537 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:01:59,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-31 22:01:59,579 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-10-31 22:01:59,579 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:01:59,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843105515] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:59,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:01:59,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-31 22:01:59,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122760780] [2024-10-31 22:01:59,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:59,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:01:59,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:59,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:01:59,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:02:00,681 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 287 [2024-10-31 22:02:00,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 280 transitions, 608 flow. Second operand has 6 states, 6 states have (on average 231.33333333333334) internal successors, (1388), 6 states have internal predecessors, (1388), 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 22:02:00,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:00,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 287 [2024-10-31 22:02:00,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:01,295 INFO L124 PetriNetUnfolderBase]: 257/1814 cut-off events. [2024-10-31 22:02:01,295 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-31 22:02:01,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2480 conditions, 1814 events. 257/1814 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 9123 event pairs, 37 based on Foata normal form. 0/1692 useless extension candidates. Maximal degree in co-relation 2013. Up to 491 conditions per place. [2024-10-31 22:02:01,306 INFO L140 encePairwiseOnDemand]: 264/287 looper letters, 67 selfloop transitions, 70 changer transitions 0/358 dead transitions. [2024-10-31 22:02:01,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 358 transitions, 1038 flow [2024-10-31 22:02:01,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:02:01,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:02:01,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1488 transitions. [2024-10-31 22:02:01,315 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8641114982578397 [2024-10-31 22:02:01,316 INFO L175 Difference]: Start difference. First operand has 288 places, 280 transitions, 608 flow. Second operand 6 states and 1488 transitions. [2024-10-31 22:02:01,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 358 transitions, 1038 flow [2024-10-31 22:02:01,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 358 transitions, 1032 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-31 22:02:01,325 INFO L231 Difference]: Finished difference. Result has 297 places, 349 transitions, 1064 flow [2024-10-31 22:02:01,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1064, PETRI_PLACES=297, PETRI_TRANSITIONS=349} [2024-10-31 22:02:01,328 INFO L277 CegarLoopForPetriNet]: 286 programPoint places, 11 predicate places. [2024-10-31 22:02:01,329 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 349 transitions, 1064 flow [2024-10-31 22:02:01,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 231.33333333333334) internal successors, (1388), 6 states have internal predecessors, (1388), 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 22:02:01,330 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:01,330 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:02:01,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:02:01,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:01,531 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-31 22:02:01,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:01,532 INFO L85 PathProgramCache]: Analyzing trace with hash 13029652, now seen corresponding path program 1 times [2024-10-31 22:02:01,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:01,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521465711] [2024-10-31 22:02:01,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:01,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:02,290 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:02,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:02,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521465711] [2024-10-31 22:02:02,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521465711] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:02:02,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611892736] [2024-10-31 22:02:02,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:02,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:02,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:02,295 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:02:02,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:02:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:02,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:02:02,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:03,348 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:03,349 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:02:03,960 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:03,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611892736] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:02:03,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:02:03,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-31 22:02:03,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295080964] [2024-10-31 22:02:03,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:02:03,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-31 22:02:03,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:03,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 22:02:03,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:02:04,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 287 [2024-10-31 22:02:04,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 349 transitions, 1064 flow. Second operand has 18 states, 18 states have (on average 272.0) internal successors, (4896), 18 states have internal predecessors, (4896), 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 22:02:04,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:04,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 287 [2024-10-31 22:02:04,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:05,673 INFO L124 PetriNetUnfolderBase]: 180/2027 cut-off events. [2024-10-31 22:02:05,674 INFO L125 PetriNetUnfolderBase]: For 184/191 co-relation queries the response was YES. [2024-10-31 22:02:05,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2782 conditions, 2027 events. 180/2027 cut-off events. For 184/191 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7497 event pairs, 23 based on Foata normal form. 4/1945 useless extension candidates. Maximal degree in co-relation 1925. Up to 207 conditions per place. [2024-10-31 22:02:05,686 INFO L140 encePairwiseOnDemand]: 281/287 looper letters, 19 selfloop transitions, 21 changer transitions 0/367 dead transitions. [2024-10-31 22:02:05,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 367 transitions, 1232 flow [2024-10-31 22:02:05,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-31 22:02:05,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-31 22:02:05,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5713 transitions. [2024-10-31 22:02:05,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9479011116641779 [2024-10-31 22:02:05,699 INFO L175 Difference]: Start difference. First operand has 297 places, 349 transitions, 1064 flow. Second operand 21 states and 5713 transitions. [2024-10-31 22:02:05,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 367 transitions, 1232 flow [2024-10-31 22:02:05,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 367 transitions, 1232 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:02:05,717 INFO L231 Difference]: Finished difference. Result has 322 places, 362 transitions, 1194 flow [2024-10-31 22:02:05,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=1064, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1194, PETRI_PLACES=322, PETRI_TRANSITIONS=362} [2024-10-31 22:02:05,718 INFO L277 CegarLoopForPetriNet]: 286 programPoint places, 36 predicate places. [2024-10-31 22:02:05,718 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 362 transitions, 1194 flow [2024-10-31 22:02:05,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 272.0) internal successors, (4896), 18 states have internal predecessors, (4896), 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 22:02:05,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:05,724 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:02:05,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:02:05,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0960d0-523d-4631-bc86-08554fb1c088/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-31 22:02:05,925 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-31 22:02:05,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:05,926 INFO L85 PathProgramCache]: Analyzing trace with hash -470198508, now seen corresponding path program 2 times [2024-10-31 22:02:05,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:05,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726751463] [2024-10-31 22:02:05,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:05,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat