./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/scull.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/scull.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:25:23,672 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:25:23,745 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:25:23,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:25:23,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:25:23,782 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:25:23,782 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:25:23,782 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:25:23,784 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:25:23,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:25:23,786 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:25:23,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:25:23,786 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:25:23,788 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:25:23,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:25:23,788 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:25:23,791 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:25:23,791 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:25:23,791 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:25:23,792 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:25:23,792 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:25:23,793 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:25:23,793 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:25:23,793 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:25:23,796 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:25:23,797 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:25:23,797 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:25:23,797 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:25:23,798 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:25:23,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:25:23,798 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:25:23,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:25:23,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:25:23,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:25:23,799 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:25:23,799 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:25:23,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:25:23,800 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:25:23,801 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:25:23,801 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:25:23,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:25:23,802 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b [2024-11-20 13:25:24,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:25:24,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:25:24,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:25:24,136 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:25:24,137 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:25:24,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/scull.i [2024-11-20 13:25:25,767 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:25:26,039 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:25:26,040 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/scull.i [2024-11-20 13:25:26,061 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df2e23e71/7cae736e5bc84cc5a578a15efdcf764e/FLAG57724503d [2024-11-20 13:25:26,078 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df2e23e71/7cae736e5bc84cc5a578a15efdcf764e [2024-11-20 13:25:26,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:25:26,082 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:25:26,085 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:25:26,085 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:25:26,091 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:25:26,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:25:26" (1/1) ... [2024-11-20 13:25:26,094 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8e033f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:26, skipping insertion in model container [2024-11-20 13:25:26,094 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:25:26" (1/1) ... [2024-11-20 13:25:26,142 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:25:26,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:25:26,685 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:25:26,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:25:26,824 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:25:26,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:26 WrapperNode [2024-11-20 13:25:26,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:25:26,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:25:26,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:25:26,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:25:26,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:26" (1/1) ... [2024-11-20 13:25:26,861 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:26" (1/1) ... [2024-11-20 13:25:26,905 INFO L138 Inliner]: procedures = 185, calls = 55, calls flagged for inlining = 32, calls inlined = 29, statements flattened = 531 [2024-11-20 13:25:26,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:25:26,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:25:26,906 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:25:26,906 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:25:26,919 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:26" (1/1) ... [2024-11-20 13:25:26,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:26" (1/1) ... [2024-11-20 13:25:26,928 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:26" (1/1) ... [2024-11-20 13:25:26,929 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:26" (1/1) ... [2024-11-20 13:25:26,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:26" (1/1) ... [2024-11-20 13:25:26,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:26" (1/1) ... [2024-11-20 13:25:26,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:26" (1/1) ... [2024-11-20 13:25:26,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:26" (1/1) ... [2024-11-20 13:25:26,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:25:26,971 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:25:26,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:25:26,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:25:26,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:26" (1/1) ... [2024-11-20 13:25:26,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:25:26,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:25:27,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 13:25:27,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 13:25:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 13:25:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 13:25:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 13:25:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 13:25:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:25:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:25:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure loader [2024-11-20 13:25:27,068 INFO L138 BoogieDeclarations]: Found implementation of procedure loader [2024-11-20 13:25:27,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:25:27,068 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:25:27,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:25:27,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:25:27,070 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:25:27,226 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:25:27,228 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:25:27,326 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L890: havoc scull_trim_#t~nondet9#1, scull_trim_#t~nondet10#1, scull_trim_#t~nondet11#1, scull_trim_#t~nondet12#1, scull_trim_~dev#1, scull_trim_~qset~0#1; [2024-11-20 13:25:27,326 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-1: havoc scull_trim_#in~dev#1;assume { :end_inline_scull_trim } true; [2024-11-20 13:25:27,327 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-2: assume -2147483648 <= scull_cleanup_module_#t~ret43#1 && scull_cleanup_module_#t~ret43#1 <= 2147483647; [2024-11-20 13:25:27,327 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-3: havoc scull_cleanup_module_#t~ret43#1; [2024-11-20 13:25:27,327 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L887: havoc scull_cleanup_module_#t~nondet42#1, scull_cleanup_module_#t~ret43#1, scull_cleanup_module_~dev~4#1;assume { :end_inline_scull_cleanup_module } true; [2024-11-20 13:25:27,327 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint scull_trim_returnLabel#1: scull_cleanup_module_#t~ret43#1 := scull_trim_#res#1; [2024-11-20 13:25:27,327 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L898: scull_init_module_#res#1 := scull_init_module_~result~0#1; [2024-11-20 13:25:27,893 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:25:27,893 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:25:27,947 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:25:27,948 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 13:25:27,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:25:27 BoogieIcfgContainer [2024-11-20 13:25:27,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:25:27,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:25:27,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:25:27,958 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:25:27,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:25:26" (1/3) ... [2024-11-20 13:25:27,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666c319d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:25:27, skipping insertion in model container [2024-11-20 13:25:27,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:26" (2/3) ... [2024-11-20 13:25:27,960 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666c319d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:25:27, skipping insertion in model container [2024-11-20 13:25:27,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:25:27" (3/3) ... [2024-11-20 13:25:27,962 INFO L112 eAbstractionObserver]: Analyzing ICFG scull.i [2024-11-20 13:25:27,979 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:25:27,980 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-11-20 13:25:27,980 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:25:28,320 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-20 13:25:28,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 580 places, 590 transitions, 1201 flow [2024-11-20 13:25:28,617 INFO L124 PetriNetUnfolderBase]: 20/587 cut-off events. [2024-11-20 13:25:28,617 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 13:25:28,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 587 events. 20/587 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1785 event pairs, 0 based on Foata normal form. 0/525 useless extension candidates. Maximal degree in co-relation 545. Up to 4 conditions per place. [2024-11-20 13:25:28,645 INFO L82 GeneralOperation]: Start removeDead. Operand has 580 places, 590 transitions, 1201 flow [2024-11-20 13:25:28,658 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 572 places, 582 transitions, 1179 flow [2024-11-20 13:25:28,672 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:25:28,680 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;@47d9ce17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:25:28,681 INFO L334 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2024-11-20 13:25:28,698 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:25:28,699 INFO L124 PetriNetUnfolderBase]: 0/91 cut-off events. [2024-11-20 13:25:28,699 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:25:28,699 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:28,700 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] [2024-11-20 13:25:28,701 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-20 13:25:28,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:28,707 INFO L85 PathProgramCache]: Analyzing trace with hash 35039947, now seen corresponding path program 1 times [2024-11-20 13:25:28,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:28,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691695059] [2024-11-20 13:25:28,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:28,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:29,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:29,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:29,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691695059] [2024-11-20 13:25:29,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691695059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:29,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:29,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:29,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590410897] [2024-11-20 13:25:29,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:29,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:29,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:29,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:29,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:29,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 590 [2024-11-20 13:25:29,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 582 transitions, 1179 flow. Second operand has 3 states, 3 states have (on average 559.3333333333334) internal successors, (1678), 3 states have internal predecessors, (1678), 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) [2024-11-20 13:25:29,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:29,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 590 [2024-11-20 13:25:29,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:30,128 INFO L124 PetriNetUnfolderBase]: 246/4300 cut-off events. [2024-11-20 13:25:30,128 INFO L125 PetriNetUnfolderBase]: For 177/182 co-relation queries the response was YES. [2024-11-20 13:25:30,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4624 conditions, 4300 events. 246/4300 cut-off events. For 177/182 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 36042 event pairs, 66 based on Foata normal form. 94/3895 useless extension candidates. Maximal degree in co-relation 4329. Up to 241 conditions per place. [2024-11-20 13:25:30,202 INFO L140 encePairwiseOnDemand]: 578/590 looper letters, 19 selfloop transitions, 2 changer transitions 0/568 dead transitions. [2024-11-20 13:25:30,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 564 places, 568 transitions, 1199 flow [2024-11-20 13:25:30,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:30,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:30,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1705 transitions. [2024-11-20 13:25:30,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.963276836158192 [2024-11-20 13:25:30,228 INFO L175 Difference]: Start difference. First operand has 572 places, 582 transitions, 1179 flow. Second operand 3 states and 1705 transitions. [2024-11-20 13:25:30,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 564 places, 568 transitions, 1199 flow [2024-11-20 13:25:30,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 568 transitions, 1187 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:25:30,249 INFO L231 Difference]: Finished difference. Result has 560 places, 566 transitions, 1148 flow [2024-11-20 13:25:30,252 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=562, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1148, PETRI_PLACES=560, PETRI_TRANSITIONS=566} [2024-11-20 13:25:30,258 INFO L277 CegarLoopForPetriNet]: 572 programPoint places, -12 predicate places. [2024-11-20 13:25:30,258 INFO L471 AbstractCegarLoop]: Abstraction has has 560 places, 566 transitions, 1148 flow [2024-11-20 13:25:30,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 559.3333333333334) internal successors, (1678), 3 states have internal predecessors, (1678), 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) [2024-11-20 13:25:30,259 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:30,259 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] [2024-11-20 13:25:30,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:25:30,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting loaderErr0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-20 13:25:30,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:30,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1284230353, now seen corresponding path program 1 times [2024-11-20 13:25:30,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:30,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880996654] [2024-11-20 13:25:30,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:30,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:30,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:30,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:30,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880996654] [2024-11-20 13:25:30,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880996654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:30,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:30,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:30,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255804186] [2024-11-20 13:25:30,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:30,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:30,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:30,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:30,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:30,401 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 546 out of 590 [2024-11-20 13:25:30,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 566 transitions, 1148 flow. Second operand has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 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) [2024-11-20 13:25:30,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:30,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 546 of 590 [2024-11-20 13:25:30,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:35,186 INFO L124 PetriNetUnfolderBase]: 2478/25388 cut-off events. [2024-11-20 13:25:35,187 INFO L125 PetriNetUnfolderBase]: For 283/285 co-relation queries the response was YES. [2024-11-20 13:25:35,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28581 conditions, 25388 events. 2478/25388 cut-off events. For 283/285 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 334206 event pairs, 643 based on Foata normal form. 0/22285 useless extension candidates. Maximal degree in co-relation 20486. Up to 1919 conditions per place. [2024-11-20 13:25:35,488 INFO L140 encePairwiseOnDemand]: 572/590 looper letters, 43 selfloop transitions, 13 changer transitions 0/591 dead transitions. [2024-11-20 13:25:35,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 591 transitions, 1315 flow [2024-11-20 13:25:35,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:35,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:35,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1699 transitions. [2024-11-20 13:25:35,493 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9598870056497175 [2024-11-20 13:25:35,493 INFO L175 Difference]: Start difference. First operand has 560 places, 566 transitions, 1148 flow. Second operand 3 states and 1699 transitions. [2024-11-20 13:25:35,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 591 transitions, 1315 flow [2024-11-20 13:25:35,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 591 transitions, 1315 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:25:35,505 INFO L231 Difference]: Finished difference. Result has 564 places, 579 transitions, 1262 flow [2024-11-20 13:25:35,506 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=1148, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1262, PETRI_PLACES=564, PETRI_TRANSITIONS=579} [2024-11-20 13:25:35,507 INFO L277 CegarLoopForPetriNet]: 572 programPoint places, -8 predicate places. [2024-11-20 13:25:35,507 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 579 transitions, 1262 flow [2024-11-20 13:25:35,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 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) [2024-11-20 13:25:35,508 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:35,508 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] [2024-11-20 13:25:35,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:25:35,509 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting loaderErr1ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-20 13:25:35,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:35,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1589802457, now seen corresponding path program 1 times [2024-11-20 13:25:35,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:35,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395040113] [2024-11-20 13:25:35,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:35,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:35,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:35,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:35,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395040113] [2024-11-20 13:25:35,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395040113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:35,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:35,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:35,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206818141] [2024-11-20 13:25:35,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:35,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:35,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:35,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:35,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:35,718 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 550 out of 590 [2024-11-20 13:25:35,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 579 transitions, 1262 flow. Second operand has 3 states, 3 states have (on average 551.6666666666666) internal successors, (1655), 3 states have internal predecessors, (1655), 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) [2024-11-20 13:25:35,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:35,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 550 of 590 [2024-11-20 13:25:35,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:43,687 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1687] L781-3-->L781-4: Formula: (= |v_#race~dev_qset~0_22| 0) InVars {} OutVars{#race~dev_qset~0=|v_#race~dev_qset~0_22|} AuxVars[] AssignedVars[#race~dev_qset~0][374], [323#L930-4true, 592#true, 425#L781-4true, 585#(= |#race~i~0| 0), 447#L748-4true, 581#true, Black: 583#true, 589#(= |#race~dev_qset~0| 0), 89#L721-2true, Black: 587#true]) [2024-11-20 13:25:43,687 INFO L294 olderBase$Statistics]: this new event has 276 ancestors and is cut-off event [2024-11-20 13:25:43,687 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-11-20 13:25:43,688 INFO L297 olderBase$Statistics]: existing Event has 178 ancestors and is cut-off event [2024-11-20 13:25:43,688 INFO L297 olderBase$Statistics]: existing Event has 178 ancestors and is cut-off event [2024-11-20 13:25:43,740 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1687] L781-3-->L781-4: Formula: (= |v_#race~dev_qset~0_22| 0) InVars {} OutVars{#race~dev_qset~0=|v_#race~dev_qset~0_22|} AuxVars[] AssignedVars[#race~dev_qset~0][374], [323#L930-4true, 540#L748-5true, 592#true, 425#L781-4true, 585#(= |#race~i~0| 0), 581#true, Black: 583#true, 589#(= |#race~dev_qset~0| 0), 89#L721-2true, Black: 587#true]) [2024-11-20 13:25:43,740 INFO L294 olderBase$Statistics]: this new event has 277 ancestors and is cut-off event [2024-11-20 13:25:43,740 INFO L297 olderBase$Statistics]: existing Event has 179 ancestors and is cut-off event [2024-11-20 13:25:43,740 INFO L297 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2024-11-20 13:25:43,740 INFO L297 olderBase$Statistics]: existing Event has 179 ancestors and is cut-off event [2024-11-20 13:25:45,388 INFO L124 PetriNetUnfolderBase]: 5656/54677 cut-off events. [2024-11-20 13:25:45,388 INFO L125 PetriNetUnfolderBase]: For 1211/1232 co-relation queries the response was YES. [2024-11-20 13:25:45,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64677 conditions, 54677 events. 5656/54677 cut-off events. For 1211/1232 co-relation queries the response was YES. Maximal size of possible extension queue 746. Compared 826872 event pairs, 2651 based on Foata normal form. 0/47691 useless extension candidates. Maximal degree in co-relation 34430. Up to 5376 conditions per place. [2024-11-20 13:25:45,970 INFO L140 encePairwiseOnDemand]: 579/590 looper letters, 36 selfloop transitions, 10 changer transitions 0/598 dead transitions. [2024-11-20 13:25:45,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 598 transitions, 1395 flow [2024-11-20 13:25:45,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:45,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:45,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1697 transitions. [2024-11-20 13:25:45,975 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9587570621468926 [2024-11-20 13:25:45,975 INFO L175 Difference]: Start difference. First operand has 564 places, 579 transitions, 1262 flow. Second operand 3 states and 1697 transitions. [2024-11-20 13:25:45,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 598 transitions, 1395 flow [2024-11-20 13:25:46,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 598 transitions, 1369 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:25:46,018 INFO L231 Difference]: Finished difference. Result has 566 places, 588 transitions, 1314 flow [2024-11-20 13:25:46,019 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=1236, PETRI_DIFFERENCE_MINUEND_PLACES=562, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1314, PETRI_PLACES=566, PETRI_TRANSITIONS=588} [2024-11-20 13:25:46,022 INFO L277 CegarLoopForPetriNet]: 572 programPoint places, -6 predicate places. [2024-11-20 13:25:46,022 INFO L471 AbstractCegarLoop]: Abstraction has has 566 places, 588 transitions, 1314 flow [2024-11-20 13:25:46,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 551.6666666666666) internal successors, (1655), 3 states have internal predecessors, (1655), 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) [2024-11-20 13:25:46,024 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:46,024 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] [2024-11-20 13:25:46,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:25:46,026 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting loaderErr2ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-20 13:25:46,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:46,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1199262058, now seen corresponding path program 1 times [2024-11-20 13:25:46,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:46,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994078742] [2024-11-20 13:25:46,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:46,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:46,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:46,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:46,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994078742] [2024-11-20 13:25:46,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994078742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:46,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:46,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:46,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82342009] [2024-11-20 13:25:46,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:46,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:46,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:46,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:46,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:46,129 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 590 [2024-11-20 13:25:46,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 588 transitions, 1314 flow. Second operand has 3 states, 3 states have (on average 556.0) internal successors, (1668), 3 states have internal predecessors, (1668), 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) [2024-11-20 13:25:46,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:46,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 590 [2024-11-20 13:25:46,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:55,231 INFO L124 PetriNetUnfolderBase]: 4888/57981 cut-off events. [2024-11-20 13:25:55,231 INFO L125 PetriNetUnfolderBase]: For 711/795 co-relation queries the response was YES. [2024-11-20 13:25:55,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66809 conditions, 57981 events. 4888/57981 cut-off events. For 711/795 co-relation queries the response was YES. Maximal size of possible extension queue 676. Compared 864933 event pairs, 1133 based on Foata normal form. 0/50904 useless extension candidates. Maximal degree in co-relation 64062. Up to 3175 conditions per place. [2024-11-20 13:25:55,783 INFO L140 encePairwiseOnDemand]: 584/590 looper letters, 27 selfloop transitions, 3 changer transitions 0/596 dead transitions. [2024-11-20 13:25:55,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 596 transitions, 1393 flow [2024-11-20 13:25:55,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:55,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:55,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1698 transitions. [2024-11-20 13:25:55,787 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9593220338983051 [2024-11-20 13:25:55,787 INFO L175 Difference]: Start difference. First operand has 566 places, 588 transitions, 1314 flow. Second operand 3 states and 1698 transitions. [2024-11-20 13:25:55,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 596 transitions, 1393 flow [2024-11-20 13:25:55,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 596 transitions, 1373 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:25:55,820 INFO L231 Difference]: Finished difference. Result has 564 places, 588 transitions, 1309 flow [2024-11-20 13:25:55,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=1288, PETRI_DIFFERENCE_MINUEND_PLACES=561, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=582, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1309, PETRI_PLACES=564, PETRI_TRANSITIONS=588} [2024-11-20 13:25:55,823 INFO L277 CegarLoopForPetriNet]: 572 programPoint places, -8 predicate places. [2024-11-20 13:25:55,823 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 588 transitions, 1309 flow [2024-11-20 13:25:55,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.0) internal successors, (1668), 3 states have internal predecessors, (1668), 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) [2024-11-20 13:25:55,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:55,825 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] [2024-11-20 13:25:55,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:25:55,825 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting loaderErr3ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-20 13:25:55,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:55,828 INFO L85 PathProgramCache]: Analyzing trace with hash -436117671, now seen corresponding path program 1 times [2024-11-20 13:25:55,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:55,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047398359] [2024-11-20 13:25:55,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:55,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:55,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:55,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:55,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047398359] [2024-11-20 13:25:55,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047398359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:55,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:55,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:55,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098578371] [2024-11-20 13:25:55,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:55,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:55,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:55,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:55,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:55,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 590 [2024-11-20 13:25:55,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 588 transitions, 1309 flow. Second operand has 3 states, 3 states have (on average 554.6666666666666) internal successors, (1664), 3 states have internal predecessors, (1664), 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) [2024-11-20 13:25:55,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:55,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 590 [2024-11-20 13:25:55,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:04,131 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1693] L722-4-->L722-5: Formula: (= |v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5| |v_#race~dev_quantum~0_10|) InVars {thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_10|, thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][292], [323#L930-4true, 599#(= |#race~scull_quantum~0| 0), Black: 594#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 585#(= |#race~i~0| 0), 601#true, Black: 597#true, 509#L688-7true, 581#true, Black: 583#true, 187#L723true, 454#L722-5true, Black: 587#true]) [2024-11-20 13:26:04,132 INFO L294 olderBase$Statistics]: this new event has 250 ancestors and is cut-off event [2024-11-20 13:26:04,132 INFO L297 olderBase$Statistics]: existing Event has 250 ancestors and is cut-off event [2024-11-20 13:26:04,132 INFO L297 olderBase$Statistics]: existing Event has 201 ancestors and is cut-off event [2024-11-20 13:26:04,132 INFO L297 olderBase$Statistics]: existing Event has 201 ancestors and is cut-off event [2024-11-20 13:26:05,485 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1693] L722-4-->L722-5: Formula: (= |v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5| |v_#race~dev_quantum~0_10|) InVars {thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_10|, thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][292], [599#(= |#race~scull_quantum~0| 0), 323#L930-4true, Black: 594#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 585#(= |#race~i~0| 0), 601#true, 509#L688-7true, Black: 597#true, 581#true, Black: 583#true, 117#L890-8true, 454#L722-5true, Black: 587#true]) [2024-11-20 13:26:05,486 INFO L294 olderBase$Statistics]: this new event has 265 ancestors and is cut-off event [2024-11-20 13:26:05,486 INFO L297 olderBase$Statistics]: existing Event has 216 ancestors and is cut-off event [2024-11-20 13:26:05,486 INFO L297 olderBase$Statistics]: existing Event has 265 ancestors and is cut-off event [2024-11-20 13:26:05,486 INFO L297 olderBase$Statistics]: existing Event has 216 ancestors and is cut-off event [2024-11-20 13:26:05,489 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1459] L722-4-->L722-5: Formula: (= |v_#race~dev_quantum~0_4| |v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|) InVars {thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_4|, thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][259], [323#L930-4true, 599#(= |#race~scull_quantum~0| 0), Black: 594#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 585#(= |#race~i~0| 0), 601#true, Black: 597#true, 581#true, 86#L722-5true, Black: 583#true, 66#L688-7true, 117#L890-8true, Black: 587#true]) [2024-11-20 13:26:05,489 INFO L294 olderBase$Statistics]: this new event has 265 ancestors and is cut-off event [2024-11-20 13:26:05,489 INFO L297 olderBase$Statistics]: existing Event has 216 ancestors and is cut-off event [2024-11-20 13:26:05,489 INFO L297 olderBase$Statistics]: existing Event has 216 ancestors and is cut-off event [2024-11-20 13:26:05,489 INFO L297 olderBase$Statistics]: existing Event has 216 ancestors and is cut-off event [2024-11-20 13:26:05,982 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1693] L722-4-->L722-5: Formula: (= |v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5| |v_#race~dev_quantum~0_10|) InVars {thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_10|, thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][292], [417#L931-1true, 599#(= |#race~scull_quantum~0| 0), Black: 594#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 585#(= |#race~i~0| 0), 601#true, Black: 597#true, 509#L688-7true, 581#true, Black: 583#true, 454#L722-5true, Black: 587#true]) [2024-11-20 13:26:05,983 INFO L294 olderBase$Statistics]: this new event has 274 ancestors and is cut-off event [2024-11-20 13:26:05,983 INFO L297 olderBase$Statistics]: existing Event has 225 ancestors and is cut-off event [2024-11-20 13:26:05,983 INFO L297 olderBase$Statistics]: existing Event has 225 ancestors and is cut-off event [2024-11-20 13:26:05,983 INFO L297 olderBase$Statistics]: existing Event has 274 ancestors and is cut-off event [2024-11-20 13:26:05,985 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1459] L722-4-->L722-5: Formula: (= |v_#race~dev_quantum~0_4| |v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|) InVars {thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_4|, thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][259], [417#L931-1true, 599#(= |#race~scull_quantum~0| 0), Black: 594#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 585#(= |#race~i~0| 0), 601#true, Black: 597#true, 86#L722-5true, 581#true, 66#L688-7true, Black: 583#true, Black: 587#true]) [2024-11-20 13:26:05,985 INFO L294 olderBase$Statistics]: this new event has 274 ancestors and is cut-off event [2024-11-20 13:26:05,985 INFO L297 olderBase$Statistics]: existing Event has 225 ancestors and is cut-off event [2024-11-20 13:26:05,985 INFO L297 olderBase$Statistics]: existing Event has 225 ancestors and is cut-off event [2024-11-20 13:26:05,985 INFO L297 olderBase$Statistics]: existing Event has 225 ancestors and is cut-off event [2024-11-20 13:26:06,999 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1693] L722-4-->L722-5: Formula: (= |v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5| |v_#race~dev_quantum~0_10|) InVars {thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_10|, thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][292], [599#(= |#race~scull_quantum~0| 0), Black: 594#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 585#(= |#race~i~0| 0), 601#true, Black: 597#true, 581#true, Black: 583#true, 454#L722-5true, Black: 587#true, 375#L932true]) [2024-11-20 13:26:07,000 INFO L294 olderBase$Statistics]: this new event has 290 ancestors and is cut-off event [2024-11-20 13:26:07,000 INFO L297 olderBase$Statistics]: existing Event has 241 ancestors and is cut-off event [2024-11-20 13:26:07,000 INFO L297 olderBase$Statistics]: existing Event has 253 ancestors and is cut-off event [2024-11-20 13:26:07,000 INFO L297 olderBase$Statistics]: existing Event has 241 ancestors and is cut-off event [2024-11-20 13:26:07,040 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1693] L722-4-->L722-5: Formula: (= |v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5| |v_#race~dev_quantum~0_10|) InVars {thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_10|, thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][292], [417#L931-1true, 599#(= |#race~scull_quantum~0| 0), Black: 594#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 585#(= |#race~i~0| 0), 601#true, Black: 597#true, 312#L692-7true, 581#true, Black: 583#true, 454#L722-5true, Black: 587#true]) [2024-11-20 13:26:07,041 INFO L294 olderBase$Statistics]: this new event has 291 ancestors and is cut-off event [2024-11-20 13:26:07,041 INFO L297 olderBase$Statistics]: existing Event has 242 ancestors and is cut-off event [2024-11-20 13:26:07,041 INFO L297 olderBase$Statistics]: existing Event has 242 ancestors and is cut-off event [2024-11-20 13:26:07,041 INFO L297 olderBase$Statistics]: existing Event has 242 ancestors and is cut-off event [2024-11-20 13:26:07,159 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1459] L722-4-->L722-5: Formula: (= |v_#race~dev_quantum~0_4| |v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|) InVars {thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_4|, thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][259], [308#L692-7true, 323#L930-4true, 599#(= |#race~scull_quantum~0| 0), Black: 594#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 585#(= |#race~i~0| 0), 601#true, Black: 597#true, 86#L722-5true, 581#true, Black: 583#true, 117#L890-8true, Black: 587#true]) [2024-11-20 13:26:07,159 INFO L294 olderBase$Statistics]: this new event has 294 ancestors and is cut-off event [2024-11-20 13:26:07,159 INFO L297 olderBase$Statistics]: existing Event has 245 ancestors and is cut-off event [2024-11-20 13:26:07,160 INFO L297 olderBase$Statistics]: existing Event has 245 ancestors and is cut-off event [2024-11-20 13:26:07,160 INFO L297 olderBase$Statistics]: existing Event has 245 ancestors and is cut-off event [2024-11-20 13:26:07,483 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1459] L722-4-->L722-5: Formula: (= |v_#race~dev_quantum~0_4| |v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|) InVars {thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_4|, thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][259], [417#L931-1true, 308#L692-7true, 599#(= |#race~scull_quantum~0| 0), Black: 594#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 585#(= |#race~i~0| 0), 601#true, Black: 597#true, 86#L722-5true, 581#true, Black: 583#true, Black: 587#true]) [2024-11-20 13:26:07,484 INFO L294 olderBase$Statistics]: this new event has 303 ancestors and is cut-off event [2024-11-20 13:26:07,484 INFO L297 olderBase$Statistics]: existing Event has 254 ancestors and is cut-off event [2024-11-20 13:26:07,484 INFO L297 olderBase$Statistics]: existing Event has 254 ancestors and is cut-off event [2024-11-20 13:26:07,484 INFO L297 olderBase$Statistics]: existing Event has 254 ancestors and is cut-off event [2024-11-20 13:26:08,473 INFO L124 PetriNetUnfolderBase]: 8336/81574 cut-off events. [2024-11-20 13:26:08,473 INFO L125 PetriNetUnfolderBase]: For 301/304 co-relation queries the response was YES. [2024-11-20 13:26:09,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95176 conditions, 81574 events. 8336/81574 cut-off events. For 301/304 co-relation queries the response was YES. Maximal size of possible extension queue 991. Compared 1283297 event pairs, 3187 based on Foata normal form. 0/71330 useless extension candidates. Maximal degree in co-relation 51113. Up to 5975 conditions per place. [2024-11-20 13:26:09,424 INFO L140 encePairwiseOnDemand]: 582/590 looper letters, 33 selfloop transitions, 7 changer transitions 0/604 dead transitions. [2024-11-20 13:26:09,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 604 transitions, 1424 flow [2024-11-20 13:26:09,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:26:09,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:26:09,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1700 transitions. [2024-11-20 13:26:09,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.96045197740113 [2024-11-20 13:26:09,429 INFO L175 Difference]: Start difference. First operand has 564 places, 588 transitions, 1309 flow. Second operand 3 states and 1700 transitions. [2024-11-20 13:26:09,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 604 transitions, 1424 flow [2024-11-20 13:26:09,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 566 places, 604 transitions, 1424 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:26:09,442 INFO L231 Difference]: Finished difference. Result has 568 places, 594 transitions, 1363 flow [2024-11-20 13:26:09,443 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=1309, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1363, PETRI_PLACES=568, PETRI_TRANSITIONS=594} [2024-11-20 13:26:09,446 INFO L277 CegarLoopForPetriNet]: 572 programPoint places, -4 predicate places. [2024-11-20 13:26:09,446 INFO L471 AbstractCegarLoop]: Abstraction has has 568 places, 594 transitions, 1363 flow [2024-11-20 13:26:09,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 554.6666666666666) internal successors, (1664), 3 states have internal predecessors, (1664), 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) [2024-11-20 13:26:09,449 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:09,449 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] [2024-11-20 13:26:09,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:26:09,449 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting loaderErr4ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-20 13:26:09,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:09,450 INFO L85 PathProgramCache]: Analyzing trace with hash -104095987, now seen corresponding path program 1 times [2024-11-20 13:26:09,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:09,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344420966] [2024-11-20 13:26:09,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:09,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:09,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:09,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:09,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344420966] [2024-11-20 13:26:09,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344420966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:09,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:09,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:26:09,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498324788] [2024-11-20 13:26:09,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:09,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:26:09,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:09,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:26:09,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:26:09,520 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 590 [2024-11-20 13:26:09,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 594 transitions, 1363 flow. Second operand has 3 states, 3 states have (on average 556.0) internal successors, (1668), 3 states have internal predecessors, (1668), 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) [2024-11-20 13:26:09,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:09,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 590 [2024-11-20 13:26:09,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:16,999 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1679] L781-->L781-1: Formula: (= |v_#race~dev_quantum~0_13| 0) InVars {} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_13|} AuxVars[] AssignedVars[#race~dev_quantum~0][272], [608#(= |#race~scull_qset~0| 0), 323#L930-4true, Black: 583#true, 284#L781-1true, 155#$Ultimate##0true, Black: 589#(= |#race~dev_qset~0| 0), 599#(= |#race~scull_quantum~0| 0), Black: 594#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 585#(= |#race~i~0| 0), 601#true, Black: 597#true, 581#true, 384#L748-1true, Black: 603#(= |#race~dev_quantum~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet10#1|)]) [2024-11-20 13:26:17,000 INFO L294 olderBase$Statistics]: this new event has 247 ancestors and is cut-off event [2024-11-20 13:26:17,000 INFO L297 olderBase$Statistics]: existing Event has 198 ancestors and is cut-off event [2024-11-20 13:26:17,000 INFO L297 olderBase$Statistics]: existing Event has 198 ancestors and is cut-off event [2024-11-20 13:26:17,000 INFO L297 olderBase$Statistics]: existing Event has 247 ancestors and is cut-off event [2024-11-20 13:26:18,400 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1679] L781-->L781-1: Formula: (= |v_#race~dev_quantum~0_13| 0) InVars {} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_13|} AuxVars[] AssignedVars[#race~dev_quantum~0][272], [608#(= |#race~scull_qset~0| 0), 323#L930-4true, Black: 583#true, 284#L781-1true, 187#L723true, Black: 589#(= |#race~dev_qset~0| 0), 599#(= |#race~scull_quantum~0| 0), Black: 594#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 585#(= |#race~i~0| 0), 601#true, Black: 597#true, 581#true, 384#L748-1true, Black: 603#(= |#race~dev_quantum~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet10#1|)]) [2024-11-20 13:26:18,400 INFO L294 olderBase$Statistics]: this new event has 280 ancestors and is cut-off event [2024-11-20 13:26:18,400 INFO L297 olderBase$Statistics]: existing Event has 231 ancestors and is cut-off event [2024-11-20 13:26:18,400 INFO L297 olderBase$Statistics]: existing Event has 280 ancestors and is cut-off event [2024-11-20 13:26:18,400 INFO L297 olderBase$Statistics]: existing Event has 231 ancestors and is cut-off event [2024-11-20 13:26:18,981 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1466] L723-->L723-1: Formula: (= |v_#race~scull_qset~0_4| 0) InVars {} OutVars{#race~scull_qset~0=|v_#race~scull_qset~0_4|} AuxVars[] AssignedVars[#race~scull_qset~0][472], [608#(= |#race~scull_qset~0| 0), Black: 583#true, 66#L688-7true, Black: 587#true, 237#L723-1true, 417#L931-1true, 599#(= |#race~scull_quantum~0| 0), Black: 594#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 585#(= |#race~i~0| 0), 601#true, Black: 597#true, 581#true, Black: 603#(= |#race~dev_quantum~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet10#1|)]) [2024-11-20 13:26:18,981 INFO L294 olderBase$Statistics]: this new event has 277 ancestors and is cut-off event [2024-11-20 13:26:18,981 INFO L297 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2024-11-20 13:26:18,981 INFO L297 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2024-11-20 13:26:18,981 INFO L297 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2024-11-20 13:26:21,243 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1466] L723-->L723-1: Formula: (= |v_#race~scull_qset~0_4| 0) InVars {} OutVars{#race~scull_qset~0=|v_#race~scull_qset~0_4|} AuxVars[] AssignedVars[#race~scull_qset~0][472], [608#(= |#race~scull_qset~0| 0), 308#L692-7true, Black: 583#true, Black: 587#true, 237#L723-1true, 417#L931-1true, 599#(= |#race~scull_quantum~0| 0), Black: 594#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 585#(= |#race~i~0| 0), 601#true, Black: 597#true, 581#true, Black: 603#(= |#race~dev_quantum~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet10#1|)]) [2024-11-20 13:26:21,243 INFO L294 olderBase$Statistics]: this new event has 306 ancestors and is cut-off event [2024-11-20 13:26:21,244 INFO L297 olderBase$Statistics]: existing Event has 257 ancestors and is cut-off event [2024-11-20 13:26:21,244 INFO L297 olderBase$Statistics]: existing Event has 257 ancestors and is cut-off event [2024-11-20 13:26:21,244 INFO L297 olderBase$Statistics]: existing Event has 257 ancestors and is cut-off event [2024-11-20 13:26:22,196 INFO L124 PetriNetUnfolderBase]: 7218/83983 cut-off events. [2024-11-20 13:26:22,196 INFO L125 PetriNetUnfolderBase]: For 767/823 co-relation queries the response was YES. [2024-11-20 13:26:22,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97790 conditions, 83983 events. 7218/83983 cut-off events. For 767/823 co-relation queries the response was YES. Maximal size of possible extension queue 966. Compared 1338300 event pairs, 1730 based on Foata normal form. 0/74207 useless extension candidates. Maximal degree in co-relation 94210. Up to 4312 conditions per place. [2024-11-20 13:26:23,453 INFO L140 encePairwiseOnDemand]: 584/590 looper letters, 27 selfloop transitions, 3 changer transitions 0/602 dead transitions. [2024-11-20 13:26:23,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 602 transitions, 1442 flow [2024-11-20 13:26:23,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:26:23,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:26:23,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1698 transitions. [2024-11-20 13:26:23,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9593220338983051 [2024-11-20 13:26:23,457 INFO L175 Difference]: Start difference. First operand has 568 places, 594 transitions, 1363 flow. Second operand 3 states and 1698 transitions. [2024-11-20 13:26:23,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 602 transitions, 1442 flow [2024-11-20 13:26:23,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 602 transitions, 1428 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:26:23,486 INFO L231 Difference]: Finished difference. Result has 566 places, 594 transitions, 1364 flow [2024-11-20 13:26:23,487 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=1343, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1364, PETRI_PLACES=566, PETRI_TRANSITIONS=594} [2024-11-20 13:26:23,488 INFO L277 CegarLoopForPetriNet]: 572 programPoint places, -6 predicate places. [2024-11-20 13:26:23,488 INFO L471 AbstractCegarLoop]: Abstraction has has 566 places, 594 transitions, 1364 flow [2024-11-20 13:26:23,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.0) internal successors, (1668), 3 states have internal predecessors, (1668), 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) [2024-11-20 13:26:23,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:23,490 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] [2024-11-20 13:26:23,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:26:23,490 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting loaderErr5ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-20 13:26:23,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:23,491 INFO L85 PathProgramCache]: Analyzing trace with hash -534417776, now seen corresponding path program 1 times [2024-11-20 13:26:23,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:23,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780389315] [2024-11-20 13:26:23,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:23,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:23,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:23,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:23,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780389315] [2024-11-20 13:26:23,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780389315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:23,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:23,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:26:23,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068932070] [2024-11-20 13:26:23,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:23,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:26:23,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:23,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:26:23,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:26:23,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 550 out of 590 [2024-11-20 13:26:23,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 594 transitions, 1364 flow. Second operand has 3 states, 3 states have (on average 552.0) internal successors, (1656), 3 states have internal predecessors, (1656), 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) [2024-11-20 13:26:23,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:23,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 550 of 590 [2024-11-20 13:26:23,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:25,537 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1453] L748-3-->L748-4: Formula: (= |v_#race~dev_qset~0_13| 0) InVars {} OutVars{#race~dev_qset~0=|v_#race~dev_qset~0_13|} AuxVars[] AssignedVars[#race~dev_qset~0][558], [608#(= |#race~scull_qset~0| 0), Black: 606#true, 323#L930-4true, 447#L748-4true, Black: 583#true, 218#L723-6true, Black: 587#true, 610#true, 599#(= |#race~scull_quantum~0| 0), Black: 594#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 585#(= |#race~i~0| 0), Black: 597#true, 581#true, 31#L720-2true, Black: 603#(= |#race~dev_quantum~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet10#1|)]) [2024-11-20 13:26:25,538 INFO L294 olderBase$Statistics]: this new event has 185 ancestors and is cut-off event [2024-11-20 13:26:25,538 INFO L297 olderBase$Statistics]: existing Event has 185 ancestors and is cut-off event [2024-11-20 13:26:25,538 INFO L297 olderBase$Statistics]: existing Event has 185 ancestors and is cut-off event [2024-11-20 13:26:25,538 INFO L297 olderBase$Statistics]: existing Event has 185 ancestors and is cut-off event [2024-11-20 13:26:25,785 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1453] L748-3-->L748-4: Formula: (= |v_#race~dev_qset~0_13| 0) InVars {} OutVars{#race~dev_qset~0=|v_#race~dev_qset~0_13|} AuxVars[] AssignedVars[#race~dev_qset~0][341], [608#(= |#race~scull_qset~0| 0), Black: 606#true, 323#L930-4true, 447#L748-4true, Black: 583#true, Black: 587#true, 610#true, 599#(= |#race~scull_quantum~0| 0), Black: 594#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 585#(= |#race~i~0| 0), Black: 597#true, 31#L720-2true, 581#true, 184#L724true, Black: 603#(= |#race~dev_quantum~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet10#1|)]) [2024-11-20 13:26:25,786 INFO L294 olderBase$Statistics]: this new event has 186 ancestors and is cut-off event [2024-11-20 13:26:25,786 INFO L297 olderBase$Statistics]: existing Event has 186 ancestors and is cut-off event [2024-11-20 13:26:25,786 INFO L297 olderBase$Statistics]: existing Event has 186 ancestors and is cut-off event [2024-11-20 13:26:25,786 INFO L297 olderBase$Statistics]: existing Event has 186 ancestors and is cut-off event