/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 01:00:55,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 01:00:55,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 01:00:55,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-28 01:00:55,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 01:00:55,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 01:00:55,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 01:00:55,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 01:00:55,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 01:00:55,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 01:00:55,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 01:00:55,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 01:00:55,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 01:00:55,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 01:00:55,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 01:00:55,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 01:00:55,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 01:00:55,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 01:00:55,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 01:00:55,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 01:00:55,439 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 01:00:55,467 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 01:00:55,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 01:00:55,469 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 01:00:55,469 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 01:00:55,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 01:00:55,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 01:00:55,470 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 01:00:55,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 01:00:55,470 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 01:00:55,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 01:00:55,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 01:00:55,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 01:00:55,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 01:00:55,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 01:00:55,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 01:00:55,471 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 01:00:55,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 01:00:55,472 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 01:00:55,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 01:00:55,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 01:00:55,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 01:00:55,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 01:00:55,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 01:00:55,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:00:55,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 01:00:55,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 01:00:55,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 01:00:55,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 01:00:55,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 01:00:55,473 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 01:00:55,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 01:00:55,473 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 01:00:55,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 01:00:55,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 01:00:55,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 01:00:55,697 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 01:00:55,697 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 01:00:55,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2023-01-28 01:00:56,796 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 01:00:57,218 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 01:00:57,219 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2023-01-28 01:00:57,255 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1f85ccba/2d8d368c9e904f80bff25930302231b8/FLAG7882c8c69 [2023-01-28 01:00:57,269 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1f85ccba/2d8d368c9e904f80bff25930302231b8 [2023-01-28 01:00:57,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 01:00:57,272 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 01:00:57,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 01:00:57,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 01:00:57,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 01:00:57,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:00:57" (1/1) ... [2023-01-28 01:00:57,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e53ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:00:57, skipping insertion in model container [2023-01-28 01:00:57,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:00:57" (1/1) ... [2023-01-28 01:00:57,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 01:00:57,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 01:00:57,667 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2023-01-28 01:01:00,569 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 01:01:01,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:01:01,041 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 01:01:01,067 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2023-01-28 01:01:01,213 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 01:01:01,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:01:01,746 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 01:01:01,746 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 01:01:01,747 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 01:01:01,747 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 01:01:01,747 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 01:01:01,747 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 01:01:01,747 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 01:01:01,753 INFO L208 MainTranslator]: Completed translation [2023-01-28 01:01:01,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:01 WrapperNode [2023-01-28 01:01:01,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 01:01:01,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 01:01:01,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 01:01:01,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 01:01:01,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:01" (1/1) ... [2023-01-28 01:01:01,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:01" (1/1) ... [2023-01-28 01:01:01,905 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 18, statements flattened = 358 [2023-01-28 01:01:01,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 01:01:01,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 01:01:01,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 01:01:01,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 01:01:01,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:01" (1/1) ... [2023-01-28 01:01:01,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:01" (1/1) ... [2023-01-28 01:01:01,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:01" (1/1) ... [2023-01-28 01:01:01,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:01" (1/1) ... [2023-01-28 01:01:01,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:01" (1/1) ... [2023-01-28 01:01:01,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:01" (1/1) ... [2023-01-28 01:01:01,940 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:01" (1/1) ... [2023-01-28 01:01:01,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:01" (1/1) ... [2023-01-28 01:01:01,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 01:01:01,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 01:01:01,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 01:01:01,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 01:01:01,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:01" (1/1) ... [2023-01-28 01:01:01,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:01:01,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 01:01:01,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-28 01:01:01,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-28 01:01:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 01:01:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 01:01:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 01:01:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 01:01:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 01:01:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-28 01:01:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 01:01:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 01:01:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2023-01-28 01:01:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2023-01-28 01:01:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 01:01:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-28 01:01:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2023-01-28 01:01:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2023-01-28 01:01:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 01:01:02,016 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 01:01:02,510 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 01:01:02,512 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 01:01:02,827 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 01:01:02,835 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 01:01:02,835 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-01-28 01:01:02,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:01:02 BoogieIcfgContainer [2023-01-28 01:01:02,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 01:01:02,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 01:01:02,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 01:01:02,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 01:01:02,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 01:00:57" (1/3) ... [2023-01-28 01:01:02,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2faa5052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:01:02, skipping insertion in model container [2023-01-28 01:01:02,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:01" (2/3) ... [2023-01-28 01:01:02,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2faa5052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:01:02, skipping insertion in model container [2023-01-28 01:01:02,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:01:02" (3/3) ... [2023-01-28 01:01:02,843 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2023-01-28 01:01:02,857 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 01:01:02,857 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-28 01:01:02,857 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 01:01:02,953 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 01:01:02,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 379 places, 387 transitions, 790 flow [2023-01-28 01:01:03,113 INFO L130 PetriNetUnfolder]: 15/385 cut-off events. [2023-01-28 01:01:03,113 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 01:01:03,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 385 events. 15/385 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 504 event pairs, 0 based on Foata normal form. 0/368 useless extension candidates. Maximal degree in co-relation 281. Up to 4 conditions per place. [2023-01-28 01:01:03,123 INFO L82 GeneralOperation]: Start removeDead. Operand has 379 places, 387 transitions, 790 flow [2023-01-28 01:01:03,131 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 377 transitions, 763 flow [2023-01-28 01:01:03,134 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:01:03,147 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 369 places, 377 transitions, 763 flow [2023-01-28 01:01:03,153 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 369 places, 377 transitions, 763 flow [2023-01-28 01:01:03,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 377 transitions, 763 flow [2023-01-28 01:01:03,233 INFO L130 PetriNetUnfolder]: 15/377 cut-off events. [2023-01-28 01:01:03,233 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 01:01:03,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 377 events. 15/377 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 454 event pairs, 0 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 281. Up to 4 conditions per place. [2023-01-28 01:01:03,247 INFO L119 LiptonReduction]: Number of co-enabled transitions 19092 [2023-01-28 01:02:01,185 WARN L222 SmtUtils]: Spent 14.76s on a formula simplification that was a NOOP. DAG size: 504 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 01:02:09,007 WARN L222 SmtUtils]: Spent 7.81s on a formula simplification that was a NOOP. DAG size: 430 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 01:02:27,856 WARN L222 SmtUtils]: Spent 18.85s on a formula simplification that was a NOOP. DAG size: 504 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 01:02:41,581 WARN L222 SmtUtils]: Spent 13.71s on a formula simplification that was a NOOP. DAG size: 430 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 01:04:12,405 WARN L222 SmtUtils]: Spent 1.51m on a formula simplification. DAG size of input: 518 DAG size of output: 514 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 01:04:56,757 WARN L222 SmtUtils]: Spent 44.34s on a formula simplification that was a NOOP. DAG size: 502 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 01:06:23,591 WARN L222 SmtUtils]: Spent 1.45m on a formula simplification. DAG size of input: 528 DAG size of output: 524 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 01:07:02,488 WARN L222 SmtUtils]: Spent 38.89s on a formula simplification that was a NOOP. DAG size: 512 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 01:07:02,504 INFO L134 LiptonReduction]: Checked pairs total: 17926 [2023-01-28 01:07:02,504 INFO L136 LiptonReduction]: Total number of compositions: 426 [2023-01-28 01:07:02,527 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 01:07:02,531 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7414d5a2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:07:02,531 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-01-28 01:07:02,545 INFO L130 PetriNetUnfolder]: 5/17 cut-off events. [2023-01-28 01:07:02,545 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 01:07:02,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:02,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-28 01:07:02,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:02,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:02,551 INFO L85 PathProgramCache]: Analyzing trace with hash 613609338, now seen corresponding path program 1 times [2023-01-28 01:07:02,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:02,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099736062] [2023-01-28 01:07:02,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:02,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:03,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:03,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:03,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099736062] [2023-01-28 01:07:03,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099736062] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:03,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:03,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 01:07:03,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591882705] [2023-01-28 01:07:03,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:03,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 01:07:03,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:03,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 01:07:03,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 01:07:03,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 813 [2023-01-28 01:07:03,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 23 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 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) [2023-01-28 01:07:03,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:03,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 813 [2023-01-28 01:07:03,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:03,984 INFO L130 PetriNetUnfolder]: 237/372 cut-off events. [2023-01-28 01:07:03,984 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2023-01-28 01:07:03,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 778 conditions, 372 events. 237/372 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1143 event pairs, 89 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 644. Up to 264 conditions per place. [2023-01-28 01:07:03,987 INFO L137 encePairwiseOnDemand]: 808/813 looper letters, 30 selfloop transitions, 4 changer transitions 3/37 dead transitions. [2023-01-28 01:07:03,987 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 37 transitions, 163 flow [2023-01-28 01:07:03,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 01:07:03,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 01:07:04,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1037 transitions. [2023-01-28 01:07:04,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42517425174251744 [2023-01-28 01:07:04,010 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1037 transitions. [2023-01-28 01:07:04,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1037 transitions. [2023-01-28 01:07:04,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:04,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1037 transitions. [2023-01-28 01:07:04,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 345.6666666666667) internal successors, (1037), 3 states have internal predecessors, (1037), 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) [2023-01-28 01:07:04,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 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) [2023-01-28 01:07:04,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 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) [2023-01-28 01:07:04,033 INFO L175 Difference]: Start difference. First operand has 24 places, 23 transitions, 55 flow. Second operand 3 states and 1037 transitions. [2023-01-28 01:07:04,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 37 transitions, 163 flow [2023-01-28 01:07:04,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 37 transitions, 155 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-28 01:07:04,039 INFO L231 Difference]: Finished difference. Result has 25 places, 26 transitions, 80 flow [2023-01-28 01:07:04,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=25, PETRI_TRANSITIONS=26} [2023-01-28 01:07:04,043 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2023-01-28 01:07:04,044 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 26 transitions, 80 flow [2023-01-28 01:07:04,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 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) [2023-01-28 01:07:04,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:04,048 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:04,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 01:07:04,052 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:04,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:04,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1842022213, now seen corresponding path program 1 times [2023-01-28 01:07:04,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:04,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425939499] [2023-01-28 01:07:04,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:04,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:04,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:04,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:04,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425939499] [2023-01-28 01:07:04,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425939499] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:04,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:04,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 01:07:04,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791654606] [2023-01-28 01:07:04,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:04,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 01:07:04,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:04,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 01:07:04,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-01-28 01:07:04,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 813 [2023-01-28 01:07:04,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 26 transitions, 80 flow. Second operand has 6 states, 6 states have (on average 326.1666666666667) internal successors, (1957), 6 states have internal predecessors, (1957), 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) [2023-01-28 01:07:04,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:04,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 813 [2023-01-28 01:07:04,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:05,379 INFO L130 PetriNetUnfolder]: 242/389 cut-off events. [2023-01-28 01:07:05,379 INFO L131 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2023-01-28 01:07:05,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 389 events. 242/389 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1341 event pairs, 21 based on Foata normal form. 9/306 useless extension candidates. Maximal degree in co-relation 672. Up to 202 conditions per place. [2023-01-28 01:07:05,381 INFO L137 encePairwiseOnDemand]: 806/813 looper letters, 35 selfloop transitions, 7 changer transitions 8/50 dead transitions. [2023-01-28 01:07:05,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 50 transitions, 243 flow [2023-01-28 01:07:05,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 01:07:05,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 01:07:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1674 transitions. [2023-01-28 01:07:05,386 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4118081180811808 [2023-01-28 01:07:05,386 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1674 transitions. [2023-01-28 01:07:05,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1674 transitions. [2023-01-28 01:07:05,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:05,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1674 transitions. [2023-01-28 01:07:05,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 334.8) internal successors, (1674), 5 states have internal predecessors, (1674), 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) [2023-01-28 01:07:05,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 813.0) internal successors, (4878), 6 states have internal predecessors, (4878), 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) [2023-01-28 01:07:05,399 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 813.0) internal successors, (4878), 6 states have internal predecessors, (4878), 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) [2023-01-28 01:07:05,399 INFO L175 Difference]: Start difference. First operand has 25 places, 26 transitions, 80 flow. Second operand 5 states and 1674 transitions. [2023-01-28 01:07:05,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 50 transitions, 243 flow [2023-01-28 01:07:05,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 50 transitions, 233 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 01:07:05,403 INFO L231 Difference]: Finished difference. Result has 29 places, 26 transitions, 106 flow [2023-01-28 01:07:05,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=106, PETRI_PLACES=29, PETRI_TRANSITIONS=26} [2023-01-28 01:07:05,404 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 5 predicate places. [2023-01-28 01:07:05,405 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 26 transitions, 106 flow [2023-01-28 01:07:05,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 326.1666666666667) internal successors, (1957), 6 states have internal predecessors, (1957), 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) [2023-01-28 01:07:05,406 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:05,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:05,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 01:07:05,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:05,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:05,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1596026477, now seen corresponding path program 1 times [2023-01-28 01:07:05,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:05,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707550350] [2023-01-28 01:07:05,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:05,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:05,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:05,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:05,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707550350] [2023-01-28 01:07:05,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707550350] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:05,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:05,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 01:07:05,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097610012] [2023-01-28 01:07:05,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:05,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 01:07:05,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:05,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 01:07:05,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 01:07:05,777 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 813 [2023-01-28 01:07:05,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 335.6666666666667) internal successors, (1007), 3 states have internal predecessors, (1007), 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) [2023-01-28 01:07:05,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:05,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 813 [2023-01-28 01:07:05,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:06,120 INFO L130 PetriNetUnfolder]: 177/314 cut-off events. [2023-01-28 01:07:06,121 INFO L131 PetriNetUnfolder]: For 200/200 co-relation queries the response was YES. [2023-01-28 01:07:06,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 824 conditions, 314 events. 177/314 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1030 event pairs, 77 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 432. Up to 216 conditions per place. [2023-01-28 01:07:06,122 INFO L137 encePairwiseOnDemand]: 809/813 looper letters, 23 selfloop transitions, 4 changer transitions 10/37 dead transitions. [2023-01-28 01:07:06,122 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 37 transitions, 217 flow [2023-01-28 01:07:06,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 01:07:06,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 01:07:06,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1032 transitions. [2023-01-28 01:07:06,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4231242312423124 [2023-01-28 01:07:06,125 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1032 transitions. [2023-01-28 01:07:06,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1032 transitions. [2023-01-28 01:07:06,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:06,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1032 transitions. [2023-01-28 01:07:06,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 344.0) internal successors, (1032), 3 states have internal predecessors, (1032), 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) [2023-01-28 01:07:06,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 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) [2023-01-28 01:07:06,133 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 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) [2023-01-28 01:07:06,134 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 106 flow. Second operand 3 states and 1032 transitions. [2023-01-28 01:07:06,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 37 transitions, 217 flow [2023-01-28 01:07:06,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 211 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 01:07:06,137 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 112 flow [2023-01-28 01:07:06,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=31, PETRI_TRANSITIONS=23} [2023-01-28 01:07:06,139 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 7 predicate places. [2023-01-28 01:07:06,139 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 112 flow [2023-01-28 01:07:06,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.6666666666667) internal successors, (1007), 3 states have internal predecessors, (1007), 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) [2023-01-28 01:07:06,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:06,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:06,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 01:07:06,140 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:06,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:06,140 INFO L85 PathProgramCache]: Analyzing trace with hash -629217462, now seen corresponding path program 1 times [2023-01-28 01:07:06,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:06,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512896266] [2023-01-28 01:07:06,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:06,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:08,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:08,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:08,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512896266] [2023-01-28 01:07:08,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512896266] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:08,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:08,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 01:07:08,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147422540] [2023-01-28 01:07:08,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:08,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 01:07:08,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:08,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 01:07:08,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-28 01:07:08,471 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 813 [2023-01-28 01:07:08,473 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 112 flow. Second operand has 7 states, 7 states have (on average 320.57142857142856) internal successors, (2244), 7 states have internal predecessors, (2244), 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) [2023-01-28 01:07:08,475 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:08,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 813 [2023-01-28 01:07:08,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:09,317 INFO L130 PetriNetUnfolder]: 196/389 cut-off events. [2023-01-28 01:07:09,318 INFO L131 PetriNetUnfolder]: For 517/517 co-relation queries the response was YES. [2023-01-28 01:07:09,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1151 conditions, 389 events. 196/389 cut-off events. For 517/517 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1707 event pairs, 16 based on Foata normal form. 4/393 useless extension candidates. Maximal degree in co-relation 962. Up to 104 conditions per place. [2023-01-28 01:07:09,320 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 43 selfloop transitions, 12 changer transitions 10/65 dead transitions. [2023-01-28 01:07:09,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 65 transitions, 406 flow [2023-01-28 01:07:09,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 01:07:09,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 01:07:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2296 transitions. [2023-01-28 01:07:09,325 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4034440344403444 [2023-01-28 01:07:09,325 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2296 transitions. [2023-01-28 01:07:09,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2296 transitions. [2023-01-28 01:07:09,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:09,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2296 transitions. [2023-01-28 01:07:09,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 328.0) internal successors, (2296), 7 states have internal predecessors, (2296), 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) [2023-01-28 01:07:09,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 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) [2023-01-28 01:07:09,341 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 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) [2023-01-28 01:07:09,341 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 112 flow. Second operand 7 states and 2296 transitions. [2023-01-28 01:07:09,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 65 transitions, 406 flow [2023-01-28 01:07:09,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 65 transitions, 370 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-28 01:07:09,345 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 166 flow [2023-01-28 01:07:09,345 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=166, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2023-01-28 01:07:09,346 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 11 predicate places. [2023-01-28 01:07:09,346 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 166 flow [2023-01-28 01:07:09,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 320.57142857142856) internal successors, (2244), 7 states have internal predecessors, (2244), 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) [2023-01-28 01:07:09,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:09,347 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:09,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 01:07:09,348 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:09,348 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:09,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1713199274, now seen corresponding path program 2 times [2023-01-28 01:07:09,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:09,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506397591] [2023-01-28 01:07:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:09,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:15,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:15,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:15,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506397591] [2023-01-28 01:07:15,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506397591] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:15,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:15,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 01:07:15,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355430967] [2023-01-28 01:07:15,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:15,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 01:07:15,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:15,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 01:07:15,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-01-28 01:07:15,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 813 [2023-01-28 01:07:15,179 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 166 flow. Second operand has 8 states, 8 states have (on average 307.375) internal successors, (2459), 8 states have internal predecessors, (2459), 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) [2023-01-28 01:07:15,179 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:15,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 813 [2023-01-28 01:07:15,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:16,125 INFO L130 PetriNetUnfolder]: 273/520 cut-off events. [2023-01-28 01:07:16,125 INFO L131 PetriNetUnfolder]: For 653/653 co-relation queries the response was YES. [2023-01-28 01:07:16,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1638 conditions, 520 events. 273/520 cut-off events. For 653/653 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2349 event pairs, 67 based on Foata normal form. 10/530 useless extension candidates. Maximal degree in co-relation 1140. Up to 220 conditions per place. [2023-01-28 01:07:16,128 INFO L137 encePairwiseOnDemand]: 801/813 looper letters, 34 selfloop transitions, 31 changer transitions 18/83 dead transitions. [2023-01-28 01:07:16,128 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 83 transitions, 560 flow [2023-01-28 01:07:16,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-28 01:07:16,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-01-28 01:07:16,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3440 transitions. [2023-01-28 01:07:16,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38465839203846586 [2023-01-28 01:07:16,138 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3440 transitions. [2023-01-28 01:07:16,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3440 transitions. [2023-01-28 01:07:16,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:16,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3440 transitions. [2023-01-28 01:07:16,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 312.72727272727275) internal successors, (3440), 11 states have internal predecessors, (3440), 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) [2023-01-28 01:07:16,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 813.0) internal successors, (9756), 12 states have internal predecessors, (9756), 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) [2023-01-28 01:07:16,160 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 813.0) internal successors, (9756), 12 states have internal predecessors, (9756), 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) [2023-01-28 01:07:16,160 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 166 flow. Second operand 11 states and 3440 transitions. [2023-01-28 01:07:16,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 83 transitions, 560 flow [2023-01-28 01:07:16,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 83 transitions, 556 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-01-28 01:07:16,166 INFO L231 Difference]: Finished difference. Result has 52 places, 51 transitions, 410 flow [2023-01-28 01:07:16,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=410, PETRI_PLACES=52, PETRI_TRANSITIONS=51} [2023-01-28 01:07:16,168 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 28 predicate places. [2023-01-28 01:07:16,168 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 51 transitions, 410 flow [2023-01-28 01:07:16,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 307.375) internal successors, (2459), 8 states have internal predecessors, (2459), 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) [2023-01-28 01:07:16,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:16,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:16,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 01:07:16,170 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:16,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:16,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1932884782, now seen corresponding path program 1 times [2023-01-28 01:07:16,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:16,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943254118] [2023-01-28 01:07:16,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:16,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:18,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:18,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:18,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943254118] [2023-01-28 01:07:18,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943254118] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:18,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:18,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 01:07:18,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671349974] [2023-01-28 01:07:18,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:18,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 01:07:18,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:18,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 01:07:18,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-01-28 01:07:18,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 813 [2023-01-28 01:07:18,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 51 transitions, 410 flow. Second operand has 8 states, 8 states have (on average 309.375) internal successors, (2475), 8 states have internal predecessors, (2475), 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) [2023-01-28 01:07:18,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:18,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 813 [2023-01-28 01:07:18,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:18,993 INFO L130 PetriNetUnfolder]: 273/516 cut-off events. [2023-01-28 01:07:18,993 INFO L131 PetriNetUnfolder]: For 1020/1020 co-relation queries the response was YES. [2023-01-28 01:07:18,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2019 conditions, 516 events. 273/516 cut-off events. For 1020/1020 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2313 event pairs, 32 based on Foata normal form. 6/522 useless extension candidates. Maximal degree in co-relation 1899. Up to 299 conditions per place. [2023-01-28 01:07:18,996 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 47 selfloop transitions, 17 changer transitions 11/75 dead transitions. [2023-01-28 01:07:18,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 75 transitions, 665 flow [2023-01-28 01:07:18,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 01:07:18,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 01:07:19,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2201 transitions. [2023-01-28 01:07:19,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3867510103672465 [2023-01-28 01:07:19,002 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2201 transitions. [2023-01-28 01:07:19,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2201 transitions. [2023-01-28 01:07:19,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:19,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2201 transitions. [2023-01-28 01:07:19,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 314.42857142857144) internal successors, (2201), 7 states have internal predecessors, (2201), 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) [2023-01-28 01:07:19,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 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) [2023-01-28 01:07:19,015 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 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) [2023-01-28 01:07:19,015 INFO L175 Difference]: Start difference. First operand has 52 places, 51 transitions, 410 flow. Second operand 7 states and 2201 transitions. [2023-01-28 01:07:19,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 75 transitions, 665 flow [2023-01-28 01:07:19,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 75 transitions, 624 flow, removed 20 selfloop flow, removed 1 redundant places. [2023-01-28 01:07:19,021 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 443 flow [2023-01-28 01:07:19,022 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=443, PETRI_PLACES=60, PETRI_TRANSITIONS=54} [2023-01-28 01:07:19,022 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 36 predicate places. [2023-01-28 01:07:19,022 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 443 flow [2023-01-28 01:07:19,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 309.375) internal successors, (2475), 8 states have internal predecessors, (2475), 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) [2023-01-28 01:07:19,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:19,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:19,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 01:07:19,024 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:19,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:19,024 INFO L85 PathProgramCache]: Analyzing trace with hash -624922700, now seen corresponding path program 2 times [2023-01-28 01:07:19,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:19,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283009009] [2023-01-28 01:07:19,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:19,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:21,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:21,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283009009] [2023-01-28 01:07:21,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283009009] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:21,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:21,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 01:07:21,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091240577] [2023-01-28 01:07:21,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:21,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 01:07:21,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:21,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 01:07:21,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-01-28 01:07:21,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 813 [2023-01-28 01:07:21,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 443 flow. Second operand has 7 states, 7 states have (on average 312.57142857142856) internal successors, (2188), 7 states have internal predecessors, (2188), 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) [2023-01-28 01:07:21,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:21,850 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 813 [2023-01-28 01:07:21,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:22,694 INFO L130 PetriNetUnfolder]: 367/661 cut-off events. [2023-01-28 01:07:22,694 INFO L131 PetriNetUnfolder]: For 2497/2497 co-relation queries the response was YES. [2023-01-28 01:07:22,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2774 conditions, 661 events. 367/661 cut-off events. For 2497/2497 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3033 event pairs, 94 based on Foata normal form. 10/671 useless extension candidates. Maximal degree in co-relation 2651. Up to 356 conditions per place. [2023-01-28 01:07:22,698 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 55 selfloop transitions, 42 changer transitions 10/107 dead transitions. [2023-01-28 01:07:22,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 107 transitions, 1019 flow [2023-01-28 01:07:22,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 01:07:22,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 01:07:22,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3179 transitions. [2023-01-28 01:07:22,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39102091020910207 [2023-01-28 01:07:22,706 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3179 transitions. [2023-01-28 01:07:22,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3179 transitions. [2023-01-28 01:07:22,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:22,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3179 transitions. [2023-01-28 01:07:22,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 317.9) internal successors, (3179), 10 states have internal predecessors, (3179), 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) [2023-01-28 01:07:22,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 813.0) internal successors, (8943), 11 states have internal predecessors, (8943), 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) [2023-01-28 01:07:22,723 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 813.0) internal successors, (8943), 11 states have internal predecessors, (8943), 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) [2023-01-28 01:07:22,724 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 443 flow. Second operand 10 states and 3179 transitions. [2023-01-28 01:07:22,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 107 transitions, 1019 flow [2023-01-28 01:07:22,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 107 transitions, 980 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-01-28 01:07:22,735 INFO L231 Difference]: Finished difference. Result has 71 places, 79 transitions, 797 flow [2023-01-28 01:07:22,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=797, PETRI_PLACES=71, PETRI_TRANSITIONS=79} [2023-01-28 01:07:22,736 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 47 predicate places. [2023-01-28 01:07:22,736 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 79 transitions, 797 flow [2023-01-28 01:07:22,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 312.57142857142856) internal successors, (2188), 7 states have internal predecessors, (2188), 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) [2023-01-28 01:07:22,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:22,737 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:22,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 01:07:22,737 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:22,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:22,738 INFO L85 PathProgramCache]: Analyzing trace with hash 808012148, now seen corresponding path program 3 times [2023-01-28 01:07:22,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:22,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211238457] [2023-01-28 01:07:22,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:22,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:25,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:25,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:25,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211238457] [2023-01-28 01:07:25,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211238457] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:25,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:25,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 01:07:25,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475955865] [2023-01-28 01:07:25,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:25,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 01:07:25,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:25,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 01:07:25,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-01-28 01:07:25,251 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 813 [2023-01-28 01:07:25,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 79 transitions, 797 flow. Second operand has 7 states, 7 states have (on average 316.57142857142856) internal successors, (2216), 7 states have internal predecessors, (2216), 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) [2023-01-28 01:07:25,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:25,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 813 [2023-01-28 01:07:25,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:26,009 INFO L130 PetriNetUnfolder]: 384/690 cut-off events. [2023-01-28 01:07:26,009 INFO L131 PetriNetUnfolder]: For 2839/2839 co-relation queries the response was YES. [2023-01-28 01:07:26,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3287 conditions, 690 events. 384/690 cut-off events. For 2839/2839 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3144 event pairs, 40 based on Foata normal form. 10/700 useless extension candidates. Maximal degree in co-relation 3159. Up to 376 conditions per place. [2023-01-28 01:07:26,014 INFO L137 encePairwiseOnDemand]: 803/813 looper letters, 71 selfloop transitions, 36 changer transitions 12/119 dead transitions. [2023-01-28 01:07:26,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 119 transitions, 1329 flow [2023-01-28 01:07:26,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 01:07:26,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 01:07:26,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2897 transitions. [2023-01-28 01:07:26,023 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3959272926062594 [2023-01-28 01:07:26,023 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2897 transitions. [2023-01-28 01:07:26,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2897 transitions. [2023-01-28 01:07:26,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:26,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2897 transitions. [2023-01-28 01:07:26,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 321.8888888888889) internal successors, (2897), 9 states have internal predecessors, (2897), 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) [2023-01-28 01:07:26,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 813.0) internal successors, (8130), 10 states have internal predecessors, (8130), 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) [2023-01-28 01:07:26,040 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 813.0) internal successors, (8130), 10 states have internal predecessors, (8130), 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) [2023-01-28 01:07:26,040 INFO L175 Difference]: Start difference. First operand has 71 places, 79 transitions, 797 flow. Second operand 9 states and 2897 transitions. [2023-01-28 01:07:26,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 119 transitions, 1329 flow [2023-01-28 01:07:26,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 119 transitions, 1177 flow, removed 52 selfloop flow, removed 4 redundant places. [2023-01-28 01:07:26,055 INFO L231 Difference]: Finished difference. Result has 80 places, 92 transitions, 940 flow [2023-01-28 01:07:26,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=940, PETRI_PLACES=80, PETRI_TRANSITIONS=92} [2023-01-28 01:07:26,056 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 56 predicate places. [2023-01-28 01:07:26,056 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 92 transitions, 940 flow [2023-01-28 01:07:26,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 316.57142857142856) internal successors, (2216), 7 states have internal predecessors, (2216), 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) [2023-01-28 01:07:26,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:26,057 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:26,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 01:07:26,057 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:26,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:26,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1869477730, now seen corresponding path program 4 times [2023-01-28 01:07:26,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:26,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429810299] [2023-01-28 01:07:26,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:26,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:28,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:28,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:28,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429810299] [2023-01-28 01:07:28,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429810299] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:28,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:28,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 01:07:28,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676197639] [2023-01-28 01:07:28,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:28,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 01:07:28,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:28,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 01:07:28,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-01-28 01:07:28,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 813 [2023-01-28 01:07:28,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 92 transitions, 940 flow. Second operand has 7 states, 7 states have (on average 316.57142857142856) internal successors, (2216), 7 states have internal predecessors, (2216), 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) [2023-01-28 01:07:28,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:28,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 813 [2023-01-28 01:07:28,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:29,174 INFO L130 PetriNetUnfolder]: 411/735 cut-off events. [2023-01-28 01:07:29,175 INFO L131 PetriNetUnfolder]: For 3419/3419 co-relation queries the response was YES. [2023-01-28 01:07:29,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3585 conditions, 735 events. 411/735 cut-off events. For 3419/3419 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3436 event pairs, 41 based on Foata normal form. 10/745 useless extension candidates. Maximal degree in co-relation 3426. Up to 372 conditions per place. [2023-01-28 01:07:29,182 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 76 selfloop transitions, 52 changer transitions 19/147 dead transitions. [2023-01-28 01:07:29,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 147 transitions, 1612 flow [2023-01-28 01:07:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 01:07:29,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 01:07:29,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3222 transitions. [2023-01-28 01:07:29,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.396309963099631 [2023-01-28 01:07:29,190 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3222 transitions. [2023-01-28 01:07:29,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3222 transitions. [2023-01-28 01:07:29,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:29,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3222 transitions. [2023-01-28 01:07:29,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 322.2) internal successors, (3222), 10 states have internal predecessors, (3222), 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) [2023-01-28 01:07:29,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 813.0) internal successors, (8943), 11 states have internal predecessors, (8943), 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) [2023-01-28 01:07:29,207 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 813.0) internal successors, (8943), 11 states have internal predecessors, (8943), 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) [2023-01-28 01:07:29,207 INFO L175 Difference]: Start difference. First operand has 80 places, 92 transitions, 940 flow. Second operand 10 states and 3222 transitions. [2023-01-28 01:07:29,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 147 transitions, 1612 flow [2023-01-28 01:07:29,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 147 transitions, 1590 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-01-28 01:07:29,223 INFO L231 Difference]: Finished difference. Result has 91 places, 109 transitions, 1275 flow [2023-01-28 01:07:29,224 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=918, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1275, PETRI_PLACES=91, PETRI_TRANSITIONS=109} [2023-01-28 01:07:29,225 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 67 predicate places. [2023-01-28 01:07:29,225 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 109 transitions, 1275 flow [2023-01-28 01:07:29,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 316.57142857142856) internal successors, (2216), 7 states have internal predecessors, (2216), 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) [2023-01-28 01:07:29,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:29,226 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:29,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 01:07:29,227 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:29,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:29,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1770099818, now seen corresponding path program 5 times [2023-01-28 01:07:29,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:29,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599062315] [2023-01-28 01:07:29,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:29,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:31,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:31,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:31,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599062315] [2023-01-28 01:07:31,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599062315] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:31,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:31,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 01:07:31,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483875748] [2023-01-28 01:07:31,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:31,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 01:07:31,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:31,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 01:07:31,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-01-28 01:07:31,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 813 [2023-01-28 01:07:31,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 109 transitions, 1275 flow. Second operand has 7 states, 7 states have (on average 316.57142857142856) internal successors, (2216), 7 states have internal predecessors, (2216), 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) [2023-01-28 01:07:31,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:31,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 813 [2023-01-28 01:07:31,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:32,093 INFO L130 PetriNetUnfolder]: 428/762 cut-off events. [2023-01-28 01:07:32,093 INFO L131 PetriNetUnfolder]: For 4676/4676 co-relation queries the response was YES. [2023-01-28 01:07:32,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4196 conditions, 762 events. 428/762 cut-off events. For 4676/4676 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3541 event pairs, 50 based on Foata normal form. 10/772 useless extension candidates. Maximal degree in co-relation 4041. Up to 436 conditions per place. [2023-01-28 01:07:32,100 INFO L137 encePairwiseOnDemand]: 803/813 looper letters, 85 selfloop transitions, 51 changer transitions 12/148 dead transitions. [2023-01-28 01:07:32,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 148 transitions, 1874 flow [2023-01-28 01:07:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 01:07:32,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 01:07:32,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2898 transitions. [2023-01-28 01:07:32,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3960639606396064 [2023-01-28 01:07:32,107 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2898 transitions. [2023-01-28 01:07:32,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2898 transitions. [2023-01-28 01:07:32,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:32,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2898 transitions. [2023-01-28 01:07:32,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 322.0) internal successors, (2898), 9 states have internal predecessors, (2898), 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) [2023-01-28 01:07:32,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 813.0) internal successors, (8130), 10 states have internal predecessors, (8130), 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) [2023-01-28 01:07:32,122 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 813.0) internal successors, (8130), 10 states have internal predecessors, (8130), 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) [2023-01-28 01:07:32,122 INFO L175 Difference]: Start difference. First operand has 91 places, 109 transitions, 1275 flow. Second operand 9 states and 2898 transitions. [2023-01-28 01:07:32,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 148 transitions, 1874 flow [2023-01-28 01:07:32,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 148 transitions, 1824 flow, removed 25 selfloop flow, removed 0 redundant places. [2023-01-28 01:07:32,150 INFO L231 Difference]: Finished difference. Result has 102 places, 122 transitions, 1541 flow [2023-01-28 01:07:32,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=1231, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1541, PETRI_PLACES=102, PETRI_TRANSITIONS=122} [2023-01-28 01:07:32,151 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 78 predicate places. [2023-01-28 01:07:32,151 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 122 transitions, 1541 flow [2023-01-28 01:07:32,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 316.57142857142856) internal successors, (2216), 7 states have internal predecessors, (2216), 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) [2023-01-28 01:07:32,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:32,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:32,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 01:07:32,152 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:32,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:32,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1773501758, now seen corresponding path program 6 times [2023-01-28 01:07:32,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:32,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70207194] [2023-01-28 01:07:32,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:32,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:33,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:33,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:33,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70207194] [2023-01-28 01:07:33,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70207194] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:33,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:33,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 01:07:33,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821207726] [2023-01-28 01:07:33,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:33,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 01:07:33,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:33,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 01:07:33,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-28 01:07:33,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 813 [2023-01-28 01:07:33,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 122 transitions, 1541 flow. Second operand has 7 states, 7 states have (on average 320.57142857142856) internal successors, (2244), 7 states have internal predecessors, (2244), 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) [2023-01-28 01:07:33,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:33,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 813 [2023-01-28 01:07:33,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:34,151 INFO L130 PetriNetUnfolder]: 424/750 cut-off events. [2023-01-28 01:07:34,152 INFO L131 PetriNetUnfolder]: For 5593/5593 co-relation queries the response was YES. [2023-01-28 01:07:34,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4406 conditions, 750 events. 424/750 cut-off events. For 5593/5593 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3445 event pairs, 29 based on Foata normal form. 6/756 useless extension candidates. Maximal degree in co-relation 4234. Up to 286 conditions per place. [2023-01-28 01:07:34,159 INFO L137 encePairwiseOnDemand]: 806/813 looper letters, 115 selfloop transitions, 36 changer transitions 10/161 dead transitions. [2023-01-28 01:07:34,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 161 transitions, 2160 flow [2023-01-28 01:07:34,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 01:07:34,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 01:07:34,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2614 transitions. [2023-01-28 01:07:34,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40190651906519065 [2023-01-28 01:07:34,167 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2614 transitions. [2023-01-28 01:07:34,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2614 transitions. [2023-01-28 01:07:34,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:34,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2614 transitions. [2023-01-28 01:07:34,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 326.75) internal successors, (2614), 8 states have internal predecessors, (2614), 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) [2023-01-28 01:07:34,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 813.0) internal successors, (7317), 9 states have internal predecessors, (7317), 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) [2023-01-28 01:07:34,178 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 813.0) internal successors, (7317), 9 states have internal predecessors, (7317), 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) [2023-01-28 01:07:34,178 INFO L175 Difference]: Start difference. First operand has 102 places, 122 transitions, 1541 flow. Second operand 8 states and 2614 transitions. [2023-01-28 01:07:34,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 161 transitions, 2160 flow [2023-01-28 01:07:34,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 161 transitions, 2079 flow, removed 31 selfloop flow, removed 3 redundant places. [2023-01-28 01:07:34,209 INFO L231 Difference]: Finished difference. Result has 108 places, 126 transitions, 1615 flow [2023-01-28 01:07:34,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=1462, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1615, PETRI_PLACES=108, PETRI_TRANSITIONS=126} [2023-01-28 01:07:34,210 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 84 predicate places. [2023-01-28 01:07:34,210 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 126 transitions, 1615 flow [2023-01-28 01:07:34,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 320.57142857142856) internal successors, (2244), 7 states have internal predecessors, (2244), 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) [2023-01-28 01:07:34,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:34,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:34,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 01:07:34,210 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:34,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:34,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1717495852, now seen corresponding path program 7 times [2023-01-28 01:07:34,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:34,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417033714] [2023-01-28 01:07:34,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:34,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:35,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:35,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:35,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417033714] [2023-01-28 01:07:35,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417033714] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:35,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:35,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 01:07:35,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733815300] [2023-01-28 01:07:35,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:35,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 01:07:35,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:35,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 01:07:35,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-28 01:07:35,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 813 [2023-01-28 01:07:35,219 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 126 transitions, 1615 flow. Second operand has 7 states, 7 states have (on average 320.57142857142856) internal successors, (2244), 7 states have internal predecessors, (2244), 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) [2023-01-28 01:07:35,219 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:35,219 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 813 [2023-01-28 01:07:35,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:35,796 INFO L130 PetriNetUnfolder]: 428/758 cut-off events. [2023-01-28 01:07:35,797 INFO L131 PetriNetUnfolder]: For 6489/6489 co-relation queries the response was YES. [2023-01-28 01:07:35,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4489 conditions, 758 events. 428/758 cut-off events. For 6489/6489 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3484 event pairs, 32 based on Foata normal form. 6/764 useless extension candidates. Maximal degree in co-relation 4315. Up to 297 conditions per place. [2023-01-28 01:07:35,804 INFO L137 encePairwiseOnDemand]: 806/813 looper letters, 114 selfloop transitions, 38 changer transitions 12/164 dead transitions. [2023-01-28 01:07:35,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 164 transitions, 2245 flow [2023-01-28 01:07:35,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 01:07:35,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 01:07:35,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2294 transitions. [2023-01-28 01:07:35,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.403092602354595 [2023-01-28 01:07:35,809 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2294 transitions. [2023-01-28 01:07:35,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2294 transitions. [2023-01-28 01:07:35,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:35,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2294 transitions. [2023-01-28 01:07:35,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 327.7142857142857) internal successors, (2294), 7 states have internal predecessors, (2294), 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) [2023-01-28 01:07:35,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 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) [2023-01-28 01:07:35,818 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 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) [2023-01-28 01:07:35,819 INFO L175 Difference]: Start difference. First operand has 108 places, 126 transitions, 1615 flow. Second operand 7 states and 2294 transitions. [2023-01-28 01:07:35,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 164 transitions, 2245 flow [2023-01-28 01:07:35,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 164 transitions, 2213 flow, removed 12 selfloop flow, removed 2 redundant places. [2023-01-28 01:07:35,850 INFO L231 Difference]: Finished difference. Result has 114 places, 128 transitions, 1713 flow [2023-01-28 01:07:35,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=1585, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1713, PETRI_PLACES=114, PETRI_TRANSITIONS=128} [2023-01-28 01:07:35,851 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 90 predicate places. [2023-01-28 01:07:35,851 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 128 transitions, 1713 flow [2023-01-28 01:07:35,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 320.57142857142856) internal successors, (2244), 7 states have internal predecessors, (2244), 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) [2023-01-28 01:07:35,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:35,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:35,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-28 01:07:35,851 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:35,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:35,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1973792680, now seen corresponding path program 8 times [2023-01-28 01:07:35,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:35,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270910953] [2023-01-28 01:07:35,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:35,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:37,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:37,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:37,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270910953] [2023-01-28 01:07:37,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270910953] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:37,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:37,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 01:07:37,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105918026] [2023-01-28 01:07:37,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:37,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 01:07:37,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:37,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 01:07:37,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-01-28 01:07:37,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 813 [2023-01-28 01:07:37,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 128 transitions, 1713 flow. Second operand has 7 states, 7 states have (on average 316.57142857142856) internal successors, (2216), 7 states have internal predecessors, (2216), 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) [2023-01-28 01:07:37,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:37,816 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 813 [2023-01-28 01:07:37,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:38,527 INFO L130 PetriNetUnfolder]: 472/833 cut-off events. [2023-01-28 01:07:38,527 INFO L131 PetriNetUnfolder]: For 8758/8758 co-relation queries the response was YES. [2023-01-28 01:07:38,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5130 conditions, 833 events. 472/833 cut-off events. For 8758/8758 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3897 event pairs, 59 based on Foata normal form. 10/843 useless extension candidates. Maximal degree in co-relation 4954. Up to 441 conditions per place. [2023-01-28 01:07:38,536 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 68 selfloop transitions, 91 changer transitions 10/169 dead transitions. [2023-01-28 01:07:38,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 169 transitions, 2444 flow [2023-01-28 01:07:38,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 01:07:38,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 01:07:38,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3217 transitions. [2023-01-28 01:07:38,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3956949569495695 [2023-01-28 01:07:38,546 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3217 transitions. [2023-01-28 01:07:38,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3217 transitions. [2023-01-28 01:07:38,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:38,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3217 transitions. [2023-01-28 01:07:38,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 321.7) internal successors, (3217), 10 states have internal predecessors, (3217), 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) [2023-01-28 01:07:38,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 813.0) internal successors, (8943), 11 states have internal predecessors, (8943), 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) [2023-01-28 01:07:38,559 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 813.0) internal successors, (8943), 11 states have internal predecessors, (8943), 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) [2023-01-28 01:07:38,559 INFO L175 Difference]: Start difference. First operand has 114 places, 128 transitions, 1713 flow. Second operand 10 states and 3217 transitions. [2023-01-28 01:07:38,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 169 transitions, 2444 flow [2023-01-28 01:07:38,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 169 transitions, 2382 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-01-28 01:07:38,599 INFO L231 Difference]: Finished difference. Result has 124 places, 142 transitions, 2164 flow [2023-01-28 01:07:38,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=1656, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2164, PETRI_PLACES=124, PETRI_TRANSITIONS=142} [2023-01-28 01:07:38,600 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 100 predicate places. [2023-01-28 01:07:38,600 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 142 transitions, 2164 flow [2023-01-28 01:07:38,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 316.57142857142856) internal successors, (2216), 7 states have internal predecessors, (2216), 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) [2023-01-28 01:07:38,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:38,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:38,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-01-28 01:07:38,601 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:38,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:38,601 INFO L85 PathProgramCache]: Analyzing trace with hash -390220190, now seen corresponding path program 3 times [2023-01-28 01:07:38,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:38,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222766329] [2023-01-28 01:07:38,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:38,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:42,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:42,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:42,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222766329] [2023-01-28 01:07:42,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222766329] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:42,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:42,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 01:07:42,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158765153] [2023-01-28 01:07:42,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:42,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-28 01:07:42,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:42,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-28 01:07:42,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-01-28 01:07:42,457 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 813 [2023-01-28 01:07:42,458 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 142 transitions, 2164 flow. Second operand has 9 states, 9 states have (on average 305.22222222222223) internal successors, (2747), 9 states have internal predecessors, (2747), 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) [2023-01-28 01:07:42,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:42,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 813 [2023-01-28 01:07:42,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:43,188 INFO L130 PetriNetUnfolder]: 462/811 cut-off events. [2023-01-28 01:07:43,188 INFO L131 PetriNetUnfolder]: For 8996/8996 co-relation queries the response was YES. [2023-01-28 01:07:43,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5326 conditions, 811 events. 462/811 cut-off events. For 8996/8996 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3757 event pairs, 59 based on Foata normal form. 4/815 useless extension candidates. Maximal degree in co-relation 5146. Up to 440 conditions per place. [2023-01-28 01:07:43,196 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 115 selfloop transitions, 40 changer transitions 10/165 dead transitions. [2023-01-28 01:07:43,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 165 transitions, 2625 flow [2023-01-28 01:07:43,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 01:07:43,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 01:07:43,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2176 transitions. [2023-01-28 01:07:43,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38235810929537867 [2023-01-28 01:07:43,201 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2176 transitions. [2023-01-28 01:07:43,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2176 transitions. [2023-01-28 01:07:43,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:43,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2176 transitions. [2023-01-28 01:07:43,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 310.85714285714283) internal successors, (2176), 7 states have internal predecessors, (2176), 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) [2023-01-28 01:07:43,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 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) [2023-01-28 01:07:43,208 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 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) [2023-01-28 01:07:43,208 INFO L175 Difference]: Start difference. First operand has 124 places, 142 transitions, 2164 flow. Second operand 7 states and 2176 transitions. [2023-01-28 01:07:43,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 165 transitions, 2625 flow [2023-01-28 01:07:43,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 165 transitions, 2493 flow, removed 42 selfloop flow, removed 5 redundant places. [2023-01-28 01:07:43,252 INFO L231 Difference]: Finished difference. Result has 128 places, 144 transitions, 2186 flow [2023-01-28 01:07:43,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=2036, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2186, PETRI_PLACES=128, PETRI_TRANSITIONS=144} [2023-01-28 01:07:43,253 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 104 predicate places. [2023-01-28 01:07:43,253 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 144 transitions, 2186 flow [2023-01-28 01:07:43,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 305.22222222222223) internal successors, (2747), 9 states have internal predecessors, (2747), 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) [2023-01-28 01:07:43,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:43,254 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:43,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-01-28 01:07:43,254 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:43,254 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:43,254 INFO L85 PathProgramCache]: Analyzing trace with hash -633752502, now seen corresponding path program 9 times [2023-01-28 01:07:43,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:43,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152399741] [2023-01-28 01:07:43,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:43,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:45,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:45,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:45,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152399741] [2023-01-28 01:07:45,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152399741] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:45,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:45,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 01:07:45,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929654273] [2023-01-28 01:07:45,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:45,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-28 01:07:45,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:45,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-28 01:07:45,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-01-28 01:07:45,208 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 813 [2023-01-28 01:07:45,209 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 144 transitions, 2186 flow. Second operand has 9 states, 9 states have (on average 308.22222222222223) internal successors, (2774), 9 states have internal predecessors, (2774), 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) [2023-01-28 01:07:45,209 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:45,209 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 813 [2023-01-28 01:07:45,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:46,040 INFO L130 PetriNetUnfolder]: 502/882 cut-off events. [2023-01-28 01:07:46,041 INFO L131 PetriNetUnfolder]: For 10787/10787 co-relation queries the response was YES. [2023-01-28 01:07:46,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5853 conditions, 882 events. 502/882 cut-off events. For 10787/10787 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4170 event pairs, 102 based on Foata normal form. 10/892 useless extension candidates. Maximal degree in co-relation 5656. Up to 429 conditions per place. [2023-01-28 01:07:46,049 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 75 selfloop transitions, 102 changer transitions 10/187 dead transitions. [2023-01-28 01:07:46,049 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 187 transitions, 3062 flow [2023-01-28 01:07:46,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-28 01:07:46,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-01-28 01:07:46,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3445 transitions. [2023-01-28 01:07:46,053 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3852174885385217 [2023-01-28 01:07:46,053 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3445 transitions. [2023-01-28 01:07:46,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3445 transitions. [2023-01-28 01:07:46,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:46,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3445 transitions. [2023-01-28 01:07:46,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 313.1818181818182) internal successors, (3445), 11 states have internal predecessors, (3445), 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) [2023-01-28 01:07:46,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 813.0) internal successors, (9756), 12 states have internal predecessors, (9756), 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) [2023-01-28 01:07:46,063 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 813.0) internal successors, (9756), 12 states have internal predecessors, (9756), 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) [2023-01-28 01:07:46,064 INFO L175 Difference]: Start difference. First operand has 128 places, 144 transitions, 2186 flow. Second operand 11 states and 3445 transitions. [2023-01-28 01:07:46,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 187 transitions, 3062 flow [2023-01-28 01:07:46,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 187 transitions, 2970 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-01-28 01:07:46,107 INFO L231 Difference]: Finished difference. Result has 138 places, 160 transitions, 2726 flow [2023-01-28 01:07:46,107 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=2106, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2726, PETRI_PLACES=138, PETRI_TRANSITIONS=160} [2023-01-28 01:07:46,108 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 114 predicate places. [2023-01-28 01:07:46,108 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 160 transitions, 2726 flow [2023-01-28 01:07:46,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 308.22222222222223) internal successors, (2774), 9 states have internal predecessors, (2774), 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) [2023-01-28 01:07:46,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:46,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:46,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-01-28 01:07:46,109 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:46,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:46,109 INFO L85 PathProgramCache]: Analyzing trace with hash 802823656, now seen corresponding path program 4 times [2023-01-28 01:07:46,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:46,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220617211] [2023-01-28 01:07:46,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:46,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:47,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:47,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:47,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220617211] [2023-01-28 01:07:47,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220617211] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:47,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:47,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 01:07:47,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885566472] [2023-01-28 01:07:47,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:47,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 01:07:47,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:47,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 01:07:47,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-28 01:07:47,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 813 [2023-01-28 01:07:47,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 160 transitions, 2726 flow. Second operand has 7 states, 7 states have (on average 320.57142857142856) internal successors, (2244), 7 states have internal predecessors, (2244), 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) [2023-01-28 01:07:47,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:47,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 813 [2023-01-28 01:07:47,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:47,910 INFO L130 PetriNetUnfolder]: 504/878 cut-off events. [2023-01-28 01:07:47,910 INFO L131 PetriNetUnfolder]: For 11097/11097 co-relation queries the response was YES. [2023-01-28 01:07:47,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6226 conditions, 878 events. 504/878 cut-off events. For 11097/11097 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4086 event pairs, 29 based on Foata normal form. 4/882 useless extension candidates. Maximal degree in co-relation 6017. Up to 317 conditions per place. [2023-01-28 01:07:47,918 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 142 selfloop transitions, 47 changer transitions 14/203 dead transitions. [2023-01-28 01:07:47,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 203 transitions, 3520 flow [2023-01-28 01:07:47,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 01:07:47,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 01:07:47,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2618 transitions. [2023-01-28 01:07:47,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40252152521525214 [2023-01-28 01:07:47,921 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2618 transitions. [2023-01-28 01:07:47,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2618 transitions. [2023-01-28 01:07:47,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:47,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2618 transitions. [2023-01-28 01:07:47,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 327.25) internal successors, (2618), 8 states have internal predecessors, (2618), 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) [2023-01-28 01:07:47,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 813.0) internal successors, (7317), 9 states have internal predecessors, (7317), 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) [2023-01-28 01:07:47,928 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 813.0) internal successors, (7317), 9 states have internal predecessors, (7317), 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) [2023-01-28 01:07:47,929 INFO L175 Difference]: Start difference. First operand has 138 places, 160 transitions, 2726 flow. Second operand 8 states and 2618 transitions. [2023-01-28 01:07:47,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 203 transitions, 3520 flow [2023-01-28 01:07:47,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 203 transitions, 3403 flow, removed 56 selfloop flow, removed 3 redundant places. [2023-01-28 01:07:47,984 INFO L231 Difference]: Finished difference. Result has 143 places, 163 transitions, 2778 flow [2023-01-28 01:07:47,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=2627, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2778, PETRI_PLACES=143, PETRI_TRANSITIONS=163} [2023-01-28 01:07:47,984 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 119 predicate places. [2023-01-28 01:07:47,984 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 163 transitions, 2778 flow [2023-01-28 01:07:47,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 320.57142857142856) internal successors, (2244), 7 states have internal predecessors, (2244), 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) [2023-01-28 01:07:47,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:47,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:47,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-01-28 01:07:47,985 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:47,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:47,985 INFO L85 PathProgramCache]: Analyzing trace with hash 807118418, now seen corresponding path program 10 times [2023-01-28 01:07:47,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:47,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424488206] [2023-01-28 01:07:47,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:47,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:49,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:49,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:49,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424488206] [2023-01-28 01:07:49,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424488206] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:49,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:49,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 01:07:49,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320646979] [2023-01-28 01:07:49,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:49,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 01:07:49,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:49,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 01:07:49,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-01-28 01:07:49,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 813 [2023-01-28 01:07:49,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 163 transitions, 2778 flow. Second operand has 7 states, 7 states have (on average 316.57142857142856) internal successors, (2216), 7 states have internal predecessors, (2216), 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) [2023-01-28 01:07:49,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:49,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 813 [2023-01-28 01:07:49,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:50,715 INFO L130 PetriNetUnfolder]: 518/914 cut-off events. [2023-01-28 01:07:50,715 INFO L131 PetriNetUnfolder]: For 11940/11940 co-relation queries the response was YES. [2023-01-28 01:07:50,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6417 conditions, 914 events. 518/914 cut-off events. For 11940/11940 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4304 event pairs, 43 based on Foata normal form. 10/924 useless extension candidates. Maximal degree in co-relation 6211. Up to 500 conditions per place. [2023-01-28 01:07:50,721 INFO L137 encePairwiseOnDemand]: 803/813 looper letters, 125 selfloop transitions, 60 changer transitions 13/198 dead transitions. [2023-01-28 01:07:50,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 198 transitions, 3482 flow [2023-01-28 01:07:50,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 01:07:50,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 01:07:50,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3217 transitions. [2023-01-28 01:07:50,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3956949569495695 [2023-01-28 01:07:50,724 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3217 transitions. [2023-01-28 01:07:50,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3217 transitions. [2023-01-28 01:07:50,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:50,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3217 transitions. [2023-01-28 01:07:50,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 321.7) internal successors, (3217), 10 states have internal predecessors, (3217), 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) [2023-01-28 01:07:50,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 813.0) internal successors, (8943), 11 states have internal predecessors, (8943), 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) [2023-01-28 01:07:50,733 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 813.0) internal successors, (8943), 11 states have internal predecessors, (8943), 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) [2023-01-28 01:07:50,733 INFO L175 Difference]: Start difference. First operand has 143 places, 163 transitions, 2778 flow. Second operand 10 states and 3217 transitions. [2023-01-28 01:07:50,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 198 transitions, 3482 flow [2023-01-28 01:07:50,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 198 transitions, 3373 flow, removed 11 selfloop flow, removed 4 redundant places. [2023-01-28 01:07:50,782 INFO L231 Difference]: Finished difference. Result has 151 places, 169 transitions, 2918 flow [2023-01-28 01:07:50,782 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=2672, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2918, PETRI_PLACES=151, PETRI_TRANSITIONS=169} [2023-01-28 01:07:50,782 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 127 predicate places. [2023-01-28 01:07:50,782 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 169 transitions, 2918 flow [2023-01-28 01:07:50,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 316.57142857142856) internal successors, (2216), 7 states have internal predecessors, (2216), 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) [2023-01-28 01:07:50,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:50,783 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:50,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-01-28 01:07:50,783 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:50,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:50,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1930230487, now seen corresponding path program 1 times [2023-01-28 01:07:50,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:50,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228925276] [2023-01-28 01:07:50,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:50,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:51,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:51,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:51,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228925276] [2023-01-28 01:07:51,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228925276] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:07:51,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:07:51,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 01:07:51,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83927337] [2023-01-28 01:07:51,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:07:51,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 01:07:51,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:07:51,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 01:07:51,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-01-28 01:07:51,802 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 813 [2023-01-28 01:07:51,803 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 169 transitions, 2918 flow. Second operand has 7 states, 7 states have (on average 305.7142857142857) internal successors, (2140), 7 states have internal predecessors, (2140), 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) [2023-01-28 01:07:51,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:07:51,803 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 813 [2023-01-28 01:07:51,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:07:52,471 INFO L130 PetriNetUnfolder]: 628/1160 cut-off events. [2023-01-28 01:07:52,472 INFO L131 PetriNetUnfolder]: For 15922/15922 co-relation queries the response was YES. [2023-01-28 01:07:52,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7919 conditions, 1160 events. 628/1160 cut-off events. For 15922/15922 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6192 event pairs, 164 based on Foata normal form. 6/1166 useless extension candidates. Maximal degree in co-relation 7699. Up to 477 conditions per place. [2023-01-28 01:07:52,482 INFO L137 encePairwiseOnDemand]: 804/813 looper letters, 133 selfloop transitions, 62 changer transitions 14/209 dead transitions. [2023-01-28 01:07:52,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 209 transitions, 3800 flow [2023-01-28 01:07:52,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 01:07:52,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 01:07:52,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2180 transitions. [2023-01-28 01:07:52,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3830609734668775 [2023-01-28 01:07:52,484 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2180 transitions. [2023-01-28 01:07:52,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2180 transitions. [2023-01-28 01:07:52,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:07:52,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2180 transitions. [2023-01-28 01:07:52,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 311.42857142857144) internal successors, (2180), 7 states have internal predecessors, (2180), 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) [2023-01-28 01:07:52,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 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) [2023-01-28 01:07:52,489 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 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) [2023-01-28 01:07:52,489 INFO L175 Difference]: Start difference. First operand has 151 places, 169 transitions, 2918 flow. Second operand 7 states and 2180 transitions. [2023-01-28 01:07:52,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 209 transitions, 3800 flow [2023-01-28 01:07:52,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 209 transitions, 3728 flow, removed 25 selfloop flow, removed 4 redundant places. [2023-01-28 01:07:52,533 INFO L231 Difference]: Finished difference. Result has 157 places, 173 transitions, 3196 flow [2023-01-28 01:07:52,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=2849, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3196, PETRI_PLACES=157, PETRI_TRANSITIONS=173} [2023-01-28 01:07:52,534 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 133 predicate places. [2023-01-28 01:07:52,534 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 173 transitions, 3196 flow [2023-01-28 01:07:52,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 305.7142857142857) internal successors, (2140), 7 states have internal predecessors, (2140), 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) [2023-01-28 01:07:52,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:07:52,534 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:07:52,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-01-28 01:07:52,534 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 01:07:52,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:07:52,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1269029010, now seen corresponding path program 1 times [2023-01-28 01:07:52,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:07:52,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961113731] [2023-01-28 01:07:52,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:52,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:07:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:53,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:07:53,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:07:53,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961113731] [2023-01-28 01:07:53,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961113731] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 01:07:53,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472248277] [2023-01-28 01:07:53,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:07:53,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 01:07:53,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 01:07:53,318 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 01:07:53,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 01:07:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:07:54,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 36 conjunts are in the unsatisfiable core [2023-01-28 01:07:54,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 01:07:54,724 INFO L190 IndexEqualityManager]: detected not equals via solver Received shutdown request... [2023-01-28 01:11:39,900 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 01:11:39,900 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 01:11:40,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-28 01:11:40,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown