/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 AFTER -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 07:16:09,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:16:09,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:16:09,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:16:09,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:16:09,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:16:09,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:16:09,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:16:09,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:16:09,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:16:09,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:16:09,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:16:09,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:16:09,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:16:09,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:16:09,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:16:09,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:16:09,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:16:09,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:16:09,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:16:09,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:16:09,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:16:09,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:16:09,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:16:09,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:16:09,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:16:09,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:16:09,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:16:09,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:16:09,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:16:09,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:16:09,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:16:09,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:16:09,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:16:09,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:16:09,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:16:09,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:16:09,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:16:09,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:16:09,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:16:09,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:16:09,572 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 07:16:09,598 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:16:09,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:16:09,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:16:09,599 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:16:09,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:16:09,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:16:09,600 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:16:09,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:16:09,601 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:16:09,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:16:09,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:16:09,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:16:09,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:16:09,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:16:09,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:16:09,602 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:16:09,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:16:09,602 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:16:09,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:16:09,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:16:09,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:16:09,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:16:09,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:16:09,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:16:09,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:16:09,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:16:09,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:16:09,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:16:09,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:16:09,604 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:16:09,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:16:09,605 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:16:09,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:16:09,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:16:09,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:16:09,823 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:16:09,823 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:16:09,824 INFO L432 ainManager$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 07:16:10,914 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:16:11,347 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:16:11,348 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2023-01-28 07:16:11,383 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b254618e7/e3269a16c7cf4f3ea8dc372a3a523f07/FLAGcf1145832 [2023-01-28 07:16:11,403 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b254618e7/e3269a16c7cf4f3ea8dc372a3a523f07 [2023-01-28 07:16:11,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:16:11,407 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:16:11,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:16:11,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:16:11,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:16:11,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:16:11" (1/1) ... [2023-01-28 07:16:11,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aa78675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:16:11, skipping insertion in model container [2023-01-28 07:16:11,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:16:11" (1/1) ... [2023-01-28 07:16:11,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:16:11,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:16:11,834 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 07:16:14,905 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 07:16:15,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:16:15,502 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:16:15,524 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 07:16:15,675 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 07:16:15,781 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:16:16,126 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:16:16,126 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:16:16,126 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:16:16,126 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:16:16,126 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:16:16,126 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:16:16,127 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:16:16,132 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:16:16,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:16:16 WrapperNode [2023-01-28 07:16:16,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:16:16,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:16:16,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:16:16,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:16:16,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:16:16" (1/1) ... [2023-01-28 07:16:16,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:16:16" (1/1) ... [2023-01-28 07:16:16,304 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 18, statements flattened = 358 [2023-01-28 07:16:16,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:16:16,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:16:16,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:16:16,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:16:16,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:16:16" (1/1) ... [2023-01-28 07:16:16,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:16:16" (1/1) ... [2023-01-28 07:16:16,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:16:16" (1/1) ... [2023-01-28 07:16:16,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:16:16" (1/1) ... [2023-01-28 07:16:16,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:16:16" (1/1) ... [2023-01-28 07:16:16,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:16:16" (1/1) ... [2023-01-28 07:16:16,365 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:16:16" (1/1) ... [2023-01-28 07:16:16,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:16:16" (1/1) ... [2023-01-28 07:16:16,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:16:16,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:16:16,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:16:16,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:16:16,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:16:16" (1/1) ... [2023-01-28 07:16:16,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:16:16,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:16:16,419 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 07:16:16,439 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 07:16:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:16:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 07:16:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:16:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:16:16,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:16:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-28 07:16:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:16:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:16:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2023-01-28 07:16:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2023-01-28 07:16:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:16:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-28 07:16:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2023-01-28 07:16:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2023-01-28 07:16:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:16:16,454 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 07:16:16,885 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:16:16,886 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:16:17,339 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:16:17,349 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:16:17,349 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-01-28 07:16:17,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:16:17 BoogieIcfgContainer [2023-01-28 07:16:17,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:16:17,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:16:17,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:16:17,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:16:17,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:16:11" (1/3) ... [2023-01-28 07:16:17,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7275c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:16:17, skipping insertion in model container [2023-01-28 07:16:17,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:16:16" (2/3) ... [2023-01-28 07:16:17,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7275c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:16:17, skipping insertion in model container [2023-01-28 07:16:17,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:16:17" (3/3) ... [2023-01-28 07:16:17,371 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2023-01-28 07:16:17,390 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:16:17,390 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-28 07:16:17,405 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:16:17,591 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 07:16:17,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 379 places, 387 transitions, 790 flow [2023-01-28 07:16:17,736 INFO L130 PetriNetUnfolder]: 15/385 cut-off events. [2023-01-28 07:16:17,736 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:16:17,744 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 07:16:17,744 INFO L82 GeneralOperation]: Start removeDead. Operand has 379 places, 387 transitions, 790 flow [2023-01-28 07:16:17,751 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 377 transitions, 763 flow [2023-01-28 07:16:17,753 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:16:17,767 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 369 places, 377 transitions, 763 flow [2023-01-28 07:16:17,769 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 369 places, 377 transitions, 763 flow [2023-01-28 07:16:17,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 377 transitions, 763 flow [2023-01-28 07:16:17,845 INFO L130 PetriNetUnfolder]: 15/377 cut-off events. [2023-01-28 07:16:17,846 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:16:17,849 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 07:16:17,857 INFO L119 LiptonReduction]: Number of co-enabled transitions 19092 [2023-01-28 07:17:15,500 WARN L222 SmtUtils]: Spent 14.70s 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 07:17:23,339 WARN L222 SmtUtils]: Spent 7.83s 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 07:17:42,297 WARN L222 SmtUtils]: Spent 18.96s 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 07:17:56,116 WARN L222 SmtUtils]: Spent 13.81s 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 07:19:25,810 WARN L222 SmtUtils]: Spent 1.49m 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 07:20:10,046 WARN L222 SmtUtils]: Spent 44.23s 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 07:21:36,751 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 07:22:15,541 WARN L222 SmtUtils]: Spent 38.78s 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 07:22:15,551 INFO L134 LiptonReduction]: Checked pairs total: 17926 [2023-01-28 07:22:15,551 INFO L136 LiptonReduction]: Total number of compositions: 426 [2023-01-28 07:22:15,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:22:15,572 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;@1804e3e3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:22:15,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-01-28 07:22:15,579 INFO L130 PetriNetUnfolder]: 5/17 cut-off events. [2023-01-28 07:22:15,580 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:22:15,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:15,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-28 07:22:15,580 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 07:22:15,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:15,584 INFO L85 PathProgramCache]: Analyzing trace with hash 613609338, now seen corresponding path program 1 times [2023-01-28 07:22:15,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:15,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414330396] [2023-01-28 07:22:15,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:15,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:22:16,506 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 07:22:16,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:22:16,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414330396] [2023-01-28 07:22:16,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414330396] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:22:16,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:22:16,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:22:16,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811582159] [2023-01-28 07:22:16,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:22:16,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:22:16,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:22:16,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:22:16,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:22:16,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 813 [2023-01-28 07:22:16,552 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 07:22:16,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:22:16,552 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 813 [2023-01-28 07:22:16,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:22:16,832 INFO L130 PetriNetUnfolder]: 237/372 cut-off events. [2023-01-28 07:22:16,832 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2023-01-28 07:22:16,833 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 07:22:16,835 INFO L137 encePairwiseOnDemand]: 808/813 looper letters, 30 selfloop transitions, 4 changer transitions 3/37 dead transitions. [2023-01-28 07:22:16,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 37 transitions, 163 flow [2023-01-28 07:22:16,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:22:16,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:22:16,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1037 transitions. [2023-01-28 07:22:16,851 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42517425174251744 [2023-01-28 07:22:16,852 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1037 transitions. [2023-01-28 07:22:16,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1037 transitions. [2023-01-28 07:22:16,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:22:16,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1037 transitions. [2023-01-28 07:22:16,861 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 07:22:16,868 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 07:22:16,869 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 07:22:16,871 INFO L175 Difference]: Start difference. First operand has 24 places, 23 transitions, 55 flow. Second operand 3 states and 1037 transitions. [2023-01-28 07:22:16,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 37 transitions, 163 flow [2023-01-28 07:22:16,874 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 07:22:16,875 INFO L231 Difference]: Finished difference. Result has 25 places, 26 transitions, 80 flow [2023-01-28 07:22:16,877 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 07:22:16,880 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2023-01-28 07:22:16,880 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 26 transitions, 80 flow [2023-01-28 07:22:16,882 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 07:22:16,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:16,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:22:16,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:22:16,888 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 07:22:16,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:16,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1842022213, now seen corresponding path program 1 times [2023-01-28 07:22:16,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:16,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673231601] [2023-01-28 07:22:16,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:16,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:22:17,722 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 07:22:17,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:22:17,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673231601] [2023-01-28 07:22:17,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673231601] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:22:17,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:22:17,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 07:22:17,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070291390] [2023-01-28 07:22:17,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:22:17,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 07:22:17,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:22:17,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 07:22:17,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-01-28 07:22:17,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 813 [2023-01-28 07:22:17,732 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 07:22:17,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:22:17,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 813 [2023-01-28 07:22:17,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:22:18,203 INFO L130 PetriNetUnfolder]: 242/389 cut-off events. [2023-01-28 07:22:18,204 INFO L131 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2023-01-28 07:22:18,205 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 07:22:18,206 INFO L137 encePairwiseOnDemand]: 806/813 looper letters, 35 selfloop transitions, 7 changer transitions 8/50 dead transitions. [2023-01-28 07:22:18,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 50 transitions, 243 flow [2023-01-28 07:22:18,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 07:22:18,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 07:22:18,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1674 transitions. [2023-01-28 07:22:18,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4118081180811808 [2023-01-28 07:22:18,211 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1674 transitions. [2023-01-28 07:22:18,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1674 transitions. [2023-01-28 07:22:18,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:22:18,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1674 transitions. [2023-01-28 07:22:18,215 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 07:22:18,221 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 07:22:18,223 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 07:22:18,224 INFO L175 Difference]: Start difference. First operand has 25 places, 26 transitions, 80 flow. Second operand 5 states and 1674 transitions. [2023-01-28 07:22:18,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 50 transitions, 243 flow [2023-01-28 07:22:18,226 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 07:22:18,227 INFO L231 Difference]: Finished difference. Result has 29 places, 26 transitions, 106 flow [2023-01-28 07:22:18,227 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 07:22:18,228 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 5 predicate places. [2023-01-28 07:22:18,228 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 26 transitions, 106 flow [2023-01-28 07:22:18,230 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 07:22:18,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:18,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:22:18,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:22:18,231 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 07:22:18,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:18,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1596026477, now seen corresponding path program 1 times [2023-01-28 07:22:18,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:18,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811850352] [2023-01-28 07:22:18,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:18,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:22:18,592 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 07:22:18,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:22:18,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811850352] [2023-01-28 07:22:18,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811850352] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:22:18,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:22:18,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:22:18,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95834917] [2023-01-28 07:22:18,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:22:18,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:22:18,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:22:18,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:22:18,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:22:18,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 813 [2023-01-28 07:22:18,599 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 07:22:18,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:22:18,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 813 [2023-01-28 07:22:18,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:22:18,926 INFO L130 PetriNetUnfolder]: 177/314 cut-off events. [2023-01-28 07:22:18,927 INFO L131 PetriNetUnfolder]: For 200/200 co-relation queries the response was YES. [2023-01-28 07:22:18,927 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 07:22:18,928 INFO L137 encePairwiseOnDemand]: 809/813 looper letters, 23 selfloop transitions, 4 changer transitions 10/37 dead transitions. [2023-01-28 07:22:18,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 37 transitions, 217 flow [2023-01-28 07:22:18,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:22:18,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:22:18,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1032 transitions. [2023-01-28 07:22:18,931 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4231242312423124 [2023-01-28 07:22:18,931 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1032 transitions. [2023-01-28 07:22:18,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1032 transitions. [2023-01-28 07:22:18,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:22:18,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1032 transitions. [2023-01-28 07:22:18,934 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 07:22:18,938 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 07:22:18,939 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 07:22:18,939 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 106 flow. Second operand 3 states and 1032 transitions. [2023-01-28 07:22:18,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 37 transitions, 217 flow [2023-01-28 07:22:18,942 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 07:22:18,943 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 112 flow [2023-01-28 07:22:18,943 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 07:22:18,945 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 7 predicate places. [2023-01-28 07:22:18,945 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 112 flow [2023-01-28 07:22:18,946 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 07:22:18,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:18,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:22:18,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 07:22:18,946 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 07:22:18,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:18,947 INFO L85 PathProgramCache]: Analyzing trace with hash -629217462, now seen corresponding path program 1 times [2023-01-28 07:22:18,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:18,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641126328] [2023-01-28 07:22:18,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:18,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:22:21,208 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 07:22:21,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:22:21,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641126328] [2023-01-28 07:22:21,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641126328] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:22:21,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:22:21,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 07:22:21,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626140808] [2023-01-28 07:22:21,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:22:21,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:22:21,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:22:21,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:22:21,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-28 07:22:21,216 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 813 [2023-01-28 07:22:21,218 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 07:22:21,219 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:22:21,219 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 813 [2023-01-28 07:22:21,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:22:22,058 INFO L130 PetriNetUnfolder]: 196/389 cut-off events. [2023-01-28 07:22:22,058 INFO L131 PetriNetUnfolder]: For 517/517 co-relation queries the response was YES. [2023-01-28 07:22:22,059 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 07:22:22,060 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 43 selfloop transitions, 12 changer transitions 10/65 dead transitions. [2023-01-28 07:22:22,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 65 transitions, 406 flow [2023-01-28 07:22:22,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 07:22:22,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 07:22:22,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2296 transitions. [2023-01-28 07:22:22,066 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4034440344403444 [2023-01-28 07:22:22,066 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2296 transitions. [2023-01-28 07:22:22,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2296 transitions. [2023-01-28 07:22:22,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:22:22,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2296 transitions. [2023-01-28 07:22:22,072 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 07:22:22,080 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 07:22:22,082 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 07:22:22,083 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 112 flow. Second operand 7 states and 2296 transitions. [2023-01-28 07:22:22,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 65 transitions, 406 flow [2023-01-28 07:22:22,087 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 07:22:22,088 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 166 flow [2023-01-28 07:22:22,088 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 07:22:22,089 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 11 predicate places. [2023-01-28 07:22:22,090 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 166 flow [2023-01-28 07:22:22,091 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 07:22:22,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:22,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:22:22,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 07:22:22,091 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 07:22:22,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:22,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1713199274, now seen corresponding path program 2 times [2023-01-28 07:22:22,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:22,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633454933] [2023-01-28 07:22:22,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:22,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:22:28,320 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 07:22:28,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:22:28,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633454933] [2023-01-28 07:22:28,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633454933] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:22:28,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:22:28,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 07:22:28,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744316692] [2023-01-28 07:22:28,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:22:28,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 07:22:28,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:22:28,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 07:22:28,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-01-28 07:22:28,328 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 813 [2023-01-28 07:22:28,332 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 07:22:28,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:22:28,332 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 813 [2023-01-28 07:22:28,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:22:29,355 INFO L130 PetriNetUnfolder]: 273/520 cut-off events. [2023-01-28 07:22:29,355 INFO L131 PetriNetUnfolder]: For 653/653 co-relation queries the response was YES. [2023-01-28 07:22:29,356 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 07:22:29,358 INFO L137 encePairwiseOnDemand]: 801/813 looper letters, 34 selfloop transitions, 31 changer transitions 18/83 dead transitions. [2023-01-28 07:22:29,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 83 transitions, 560 flow [2023-01-28 07:22:29,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-28 07:22:29,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-01-28 07:22:29,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3440 transitions. [2023-01-28 07:22:29,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38465839203846586 [2023-01-28 07:22:29,367 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3440 transitions. [2023-01-28 07:22:29,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3440 transitions. [2023-01-28 07:22:29,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:22:29,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3440 transitions. [2023-01-28 07:22:29,375 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 07:22:29,388 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 07:22:29,390 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 07:22:29,390 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 166 flow. Second operand 11 states and 3440 transitions. [2023-01-28 07:22:29,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 83 transitions, 560 flow [2023-01-28 07:22:29,393 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 07:22:29,395 INFO L231 Difference]: Finished difference. Result has 52 places, 51 transitions, 410 flow [2023-01-28 07:22:29,395 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 07:22:29,397 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 28 predicate places. [2023-01-28 07:22:29,397 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 51 transitions, 410 flow [2023-01-28 07:22:29,398 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 07:22:29,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:29,398 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:22:29,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 07:22:29,399 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 07:22:29,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:29,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1932884782, now seen corresponding path program 1 times [2023-01-28 07:22:29,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:29,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392872905] [2023-01-28 07:22:29,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:29,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:22:31,560 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 07:22:31,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:22:31,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392872905] [2023-01-28 07:22:31,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392872905] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:22:31,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:22:31,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 07:22:31,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945936625] [2023-01-28 07:22:31,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:22:31,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 07:22:31,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:22:31,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 07:22:31,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-01-28 07:22:31,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 813 [2023-01-28 07:22:31,566 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 07:22:31,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:22:31,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 813 [2023-01-28 07:22:31,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:22:32,195 INFO L130 PetriNetUnfolder]: 273/516 cut-off events. [2023-01-28 07:22:32,195 INFO L131 PetriNetUnfolder]: For 1020/1020 co-relation queries the response was YES. [2023-01-28 07:22:32,196 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 07:22:32,198 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 47 selfloop transitions, 17 changer transitions 11/75 dead transitions. [2023-01-28 07:22:32,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 75 transitions, 665 flow [2023-01-28 07:22:32,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 07:22:32,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 07:22:32,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2201 transitions. [2023-01-28 07:22:32,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3867510103672465 [2023-01-28 07:22:32,204 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2201 transitions. [2023-01-28 07:22:32,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2201 transitions. [2023-01-28 07:22:32,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:22:32,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2201 transitions. [2023-01-28 07:22:32,209 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 07:22:32,217 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 07:22:32,219 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 07:22:32,219 INFO L175 Difference]: Start difference. First operand has 52 places, 51 transitions, 410 flow. Second operand 7 states and 2201 transitions. [2023-01-28 07:22:32,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 75 transitions, 665 flow [2023-01-28 07:22:32,225 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 07:22:32,227 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 443 flow [2023-01-28 07:22:32,227 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 07:22:32,229 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 36 predicate places. [2023-01-28 07:22:32,229 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 443 flow [2023-01-28 07:22:32,236 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 07:22:32,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:32,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:22:32,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 07:22:32,237 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 07:22:32,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:32,237 INFO L85 PathProgramCache]: Analyzing trace with hash -624922700, now seen corresponding path program 2 times [2023-01-28 07:22:32,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:32,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619232119] [2023-01-28 07:22:32,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:32,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:22:35,244 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 07:22:35,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:22:35,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619232119] [2023-01-28 07:22:35,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619232119] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:22:35,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:22:35,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 07:22:35,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623564698] [2023-01-28 07:22:35,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:22:35,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:22:35,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:22:35,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:22:35,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-01-28 07:22:35,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 813 [2023-01-28 07:22:35,250 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 07:22:35,250 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:22:35,250 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 813 [2023-01-28 07:22:35,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:22:36,129 INFO L130 PetriNetUnfolder]: 367/661 cut-off events. [2023-01-28 07:22:36,130 INFO L131 PetriNetUnfolder]: For 2497/2497 co-relation queries the response was YES. [2023-01-28 07:22:36,132 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 07:22:36,134 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 55 selfloop transitions, 42 changer transitions 10/107 dead transitions. [2023-01-28 07:22:36,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 107 transitions, 1019 flow [2023-01-28 07:22:36,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 07:22:36,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 07:22:36,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3179 transitions. [2023-01-28 07:22:36,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39102091020910207 [2023-01-28 07:22:36,142 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3179 transitions. [2023-01-28 07:22:36,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3179 transitions. [2023-01-28 07:22:36,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:22:36,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3179 transitions. [2023-01-28 07:22:36,149 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 07:22:36,157 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 07:22:36,158 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 07:22:36,159 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 443 flow. Second operand 10 states and 3179 transitions. [2023-01-28 07:22:36,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 107 transitions, 1019 flow [2023-01-28 07:22:36,166 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 07:22:36,169 INFO L231 Difference]: Finished difference. Result has 71 places, 79 transitions, 797 flow [2023-01-28 07:22:36,169 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 07:22:36,170 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 47 predicate places. [2023-01-28 07:22:36,170 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 79 transitions, 797 flow [2023-01-28 07:22:36,170 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 07:22:36,170 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:36,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:22:36,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 07:22:36,171 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 07:22:36,171 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:36,171 INFO L85 PathProgramCache]: Analyzing trace with hash 808012148, now seen corresponding path program 3 times [2023-01-28 07:22:36,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:36,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552864504] [2023-01-28 07:22:36,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:36,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:22:38,603 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 07:22:38,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:22:38,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552864504] [2023-01-28 07:22:38,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552864504] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:22:38,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:22:38,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 07:22:38,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768620791] [2023-01-28 07:22:38,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:22:38,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:22:38,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:22:38,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:22:38,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-01-28 07:22:38,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 813 [2023-01-28 07:22:38,607 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 07:22:38,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:22:38,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 813 [2023-01-28 07:22:38,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:22:39,320 INFO L130 PetriNetUnfolder]: 384/690 cut-off events. [2023-01-28 07:22:39,320 INFO L131 PetriNetUnfolder]: For 2839/2839 co-relation queries the response was YES. [2023-01-28 07:22:39,323 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 07:22:39,326 INFO L137 encePairwiseOnDemand]: 803/813 looper letters, 71 selfloop transitions, 36 changer transitions 12/119 dead transitions. [2023-01-28 07:22:39,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 119 transitions, 1329 flow [2023-01-28 07:22:39,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 07:22:39,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 07:22:39,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2897 transitions. [2023-01-28 07:22:39,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3959272926062594 [2023-01-28 07:22:39,333 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2897 transitions. [2023-01-28 07:22:39,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2897 transitions. [2023-01-28 07:22:39,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:22:39,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2897 transitions. [2023-01-28 07:22:39,339 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 07:22:39,347 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 07:22:39,348 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 07:22:39,349 INFO L175 Difference]: Start difference. First operand has 71 places, 79 transitions, 797 flow. Second operand 9 states and 2897 transitions. [2023-01-28 07:22:39,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 119 transitions, 1329 flow [2023-01-28 07:22:39,362 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 07:22:39,365 INFO L231 Difference]: Finished difference. Result has 80 places, 92 transitions, 940 flow [2023-01-28 07:22:39,365 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 07:22:39,367 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 56 predicate places. [2023-01-28 07:22:39,367 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 92 transitions, 940 flow [2023-01-28 07:22:39,368 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 07:22:39,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:39,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:22:39,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 07:22:39,369 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 07:22:39,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:39,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1869477730, now seen corresponding path program 4 times [2023-01-28 07:22:39,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:39,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364989821] [2023-01-28 07:22:39,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:39,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:22:41,736 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 07:22:41,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:22:41,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364989821] [2023-01-28 07:22:41,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364989821] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:22:41,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:22:41,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 07:22:41,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159783265] [2023-01-28 07:22:41,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:22:41,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:22:41,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:22:41,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:22:41,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-01-28 07:22:41,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 813 [2023-01-28 07:22:41,741 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 07:22:41,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:22:41,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 813 [2023-01-28 07:22:41,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:22:42,552 INFO L130 PetriNetUnfolder]: 411/735 cut-off events. [2023-01-28 07:22:42,553 INFO L131 PetriNetUnfolder]: For 3419/3419 co-relation queries the response was YES. [2023-01-28 07:22:42,555 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 07:22:42,558 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 76 selfloop transitions, 52 changer transitions 19/147 dead transitions. [2023-01-28 07:22:42,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 147 transitions, 1612 flow [2023-01-28 07:22:42,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 07:22:42,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 07:22:42,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3222 transitions. [2023-01-28 07:22:42,567 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.396309963099631 [2023-01-28 07:22:42,567 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3222 transitions. [2023-01-28 07:22:42,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3222 transitions. [2023-01-28 07:22:42,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:22:42,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3222 transitions. [2023-01-28 07:22:42,574 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 07:22:42,582 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 07:22:42,583 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 07:22:42,584 INFO L175 Difference]: Start difference. First operand has 80 places, 92 transitions, 940 flow. Second operand 10 states and 3222 transitions. [2023-01-28 07:22:42,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 147 transitions, 1612 flow [2023-01-28 07:22:42,597 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 07:22:42,599 INFO L231 Difference]: Finished difference. Result has 91 places, 109 transitions, 1275 flow [2023-01-28 07:22:42,600 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 07:22:42,601 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 67 predicate places. [2023-01-28 07:22:42,601 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 109 transitions, 1275 flow [2023-01-28 07:22:42,601 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 07:22:42,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:42,602 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:22:42,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 07:22:42,603 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 07:22:42,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:42,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1770099818, now seen corresponding path program 5 times [2023-01-28 07:22:42,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:42,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891856181] [2023-01-28 07:22:42,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:42,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:22:44,775 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 07:22:44,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:22:44,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891856181] [2023-01-28 07:22:44,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891856181] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:22:44,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:22:44,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 07:22:44,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107088352] [2023-01-28 07:22:44,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:22:44,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:22:44,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:22:44,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:22:44,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-01-28 07:22:44,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 813 [2023-01-28 07:22:44,779 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 07:22:44,779 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:22:44,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 813 [2023-01-28 07:22:44,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:22:45,455 INFO L130 PetriNetUnfolder]: 428/762 cut-off events. [2023-01-28 07:22:45,455 INFO L131 PetriNetUnfolder]: For 4676/4676 co-relation queries the response was YES. [2023-01-28 07:22:45,458 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 07:22:45,461 INFO L137 encePairwiseOnDemand]: 803/813 looper letters, 85 selfloop transitions, 51 changer transitions 12/148 dead transitions. [2023-01-28 07:22:45,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 148 transitions, 1874 flow [2023-01-28 07:22:45,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 07:22:45,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 07:22:45,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2898 transitions. [2023-01-28 07:22:45,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3960639606396064 [2023-01-28 07:22:45,469 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2898 transitions. [2023-01-28 07:22:45,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2898 transitions. [2023-01-28 07:22:45,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:22:45,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2898 transitions. [2023-01-28 07:22:45,475 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 07:22:45,481 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 07:22:45,482 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 07:22:45,482 INFO L175 Difference]: Start difference. First operand has 91 places, 109 transitions, 1275 flow. Second operand 9 states and 2898 transitions. [2023-01-28 07:22:45,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 148 transitions, 1874 flow [2023-01-28 07:22:45,502 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 07:22:45,505 INFO L231 Difference]: Finished difference. Result has 102 places, 122 transitions, 1541 flow [2023-01-28 07:22:45,505 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 07:22:45,505 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 78 predicate places. [2023-01-28 07:22:45,506 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 122 transitions, 1541 flow [2023-01-28 07:22:45,506 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 07:22:45,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:45,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:22:45,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 07:22:45,507 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 07:22:45,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:45,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1773501758, now seen corresponding path program 6 times [2023-01-28 07:22:45,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:45,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791193952] [2023-01-28 07:22:45,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:45,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:22:46,820 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 07:22:46,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:22:46,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791193952] [2023-01-28 07:22:46,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791193952] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:22:46,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:22:46,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 07:22:46,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714743618] [2023-01-28 07:22:46,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:22:46,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:22:46,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:22:46,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:22:46,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-28 07:22:46,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 813 [2023-01-28 07:22:46,825 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 07:22:46,825 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:22:46,825 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 813 [2023-01-28 07:22:46,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:22:47,517 INFO L130 PetriNetUnfolder]: 424/750 cut-off events. [2023-01-28 07:22:47,518 INFO L131 PetriNetUnfolder]: For 5593/5593 co-relation queries the response was YES. [2023-01-28 07:22:47,521 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 07:22:47,525 INFO L137 encePairwiseOnDemand]: 806/813 looper letters, 115 selfloop transitions, 36 changer transitions 10/161 dead transitions. [2023-01-28 07:22:47,525 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 161 transitions, 2160 flow [2023-01-28 07:22:47,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 07:22:47,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 07:22:47,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2614 transitions. [2023-01-28 07:22:47,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40190651906519065 [2023-01-28 07:22:47,530 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2614 transitions. [2023-01-28 07:22:47,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2614 transitions. [2023-01-28 07:22:47,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:22:47,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2614 transitions. [2023-01-28 07:22:47,536 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 07:22:47,541 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 07:22:47,543 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 07:22:47,543 INFO L175 Difference]: Start difference. First operand has 102 places, 122 transitions, 1541 flow. Second operand 8 states and 2614 transitions. [2023-01-28 07:22:47,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 161 transitions, 2160 flow [2023-01-28 07:22:47,568 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 07:22:47,571 INFO L231 Difference]: Finished difference. Result has 108 places, 126 transitions, 1615 flow [2023-01-28 07:22:47,571 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 07:22:47,571 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 84 predicate places. [2023-01-28 07:22:47,571 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 126 transitions, 1615 flow [2023-01-28 07:22:47,572 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 07:22:47,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:47,572 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:22:47,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 07:22:47,573 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 07:22:47,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:47,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1717495852, now seen corresponding path program 7 times [2023-01-28 07:22:47,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:47,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133564485] [2023-01-28 07:22:47,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:47,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:22:48,626 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 07:22:48,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:22:48,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133564485] [2023-01-28 07:22:48,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133564485] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:22:48,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:22:48,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 07:22:48,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599218728] [2023-01-28 07:22:48,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:22:48,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:22:48,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:22:48,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:22:48,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-28 07:22:48,629 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 813 [2023-01-28 07:22:48,630 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 07:22:48,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:22:48,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 813 [2023-01-28 07:22:48,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:22:49,281 INFO L130 PetriNetUnfolder]: 428/758 cut-off events. [2023-01-28 07:22:49,281 INFO L131 PetriNetUnfolder]: For 6489/6489 co-relation queries the response was YES. [2023-01-28 07:22:49,285 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 07:22:49,288 INFO L137 encePairwiseOnDemand]: 806/813 looper letters, 114 selfloop transitions, 38 changer transitions 12/164 dead transitions. [2023-01-28 07:22:49,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 164 transitions, 2245 flow [2023-01-28 07:22:49,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 07:22:49,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 07:22:49,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2294 transitions. [2023-01-28 07:22:49,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.403092602354595 [2023-01-28 07:22:49,293 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2294 transitions. [2023-01-28 07:22:49,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2294 transitions. [2023-01-28 07:22:49,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:22:49,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2294 transitions. [2023-01-28 07:22:49,297 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 07:22:49,303 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 07:22:49,304 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 07:22:49,304 INFO L175 Difference]: Start difference. First operand has 108 places, 126 transitions, 1615 flow. Second operand 7 states and 2294 transitions. [2023-01-28 07:22:49,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 164 transitions, 2245 flow [2023-01-28 07:22:49,333 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 07:22:49,336 INFO L231 Difference]: Finished difference. Result has 114 places, 128 transitions, 1713 flow [2023-01-28 07:22:49,336 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 07:22:49,336 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 90 predicate places. [2023-01-28 07:22:49,336 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 128 transitions, 1713 flow [2023-01-28 07:22:49,337 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 07:22:49,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:49,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:22:49,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-28 07:22:49,337 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 07:22:49,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:49,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1973792680, now seen corresponding path program 8 times [2023-01-28 07:22:49,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:49,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831295305] [2023-01-28 07:22:49,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:49,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:22:51,187 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 07:22:51,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:22:51,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831295305] [2023-01-28 07:22:51,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831295305] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:22:51,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:22:51,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 07:22:51,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959937394] [2023-01-28 07:22:51,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:22:51,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:22:51,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:22:51,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:22:51,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-01-28 07:22:51,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 813 [2023-01-28 07:22:51,191 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 07:22:51,191 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:22:51,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 813 [2023-01-28 07:22:51,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:22:51,903 INFO L130 PetriNetUnfolder]: 472/833 cut-off events. [2023-01-28 07:22:51,903 INFO L131 PetriNetUnfolder]: For 8758/8758 co-relation queries the response was YES. [2023-01-28 07:22:51,906 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 07:22:51,910 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 68 selfloop transitions, 91 changer transitions 10/169 dead transitions. [2023-01-28 07:22:51,910 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 169 transitions, 2444 flow [2023-01-28 07:22:51,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 07:22:51,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 07:22:51,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3217 transitions. [2023-01-28 07:22:51,917 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3956949569495695 [2023-01-28 07:22:51,917 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3217 transitions. [2023-01-28 07:22:51,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3217 transitions. [2023-01-28 07:22:51,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:22:51,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3217 transitions. [2023-01-28 07:22:51,924 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 07:22:51,932 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 07:22:51,933 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 07:22:51,933 INFO L175 Difference]: Start difference. First operand has 114 places, 128 transitions, 1713 flow. Second operand 10 states and 3217 transitions. [2023-01-28 07:22:51,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 169 transitions, 2444 flow [2023-01-28 07:22:51,973 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 07:22:51,977 INFO L231 Difference]: Finished difference. Result has 124 places, 142 transitions, 2164 flow [2023-01-28 07:22:51,977 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 07:22:51,978 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 100 predicate places. [2023-01-28 07:22:51,978 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 142 transitions, 2164 flow [2023-01-28 07:22:51,978 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 07:22:51,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:51,978 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:22:51,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-01-28 07:22:51,979 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 07:22:51,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:51,979 INFO L85 PathProgramCache]: Analyzing trace with hash -390220190, now seen corresponding path program 3 times [2023-01-28 07:22:51,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:51,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526312956] [2023-01-28 07:22:51,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:51,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:22:55,639 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 07:22:55,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:22:55,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526312956] [2023-01-28 07:22:55,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526312956] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:22:55,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:22:55,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 07:22:55,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778600186] [2023-01-28 07:22:55,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:22:55,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-28 07:22:55,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:22:55,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-28 07:22:55,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-01-28 07:22:55,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 813 [2023-01-28 07:22:55,643 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 07:22:55,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:22:55,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 813 [2023-01-28 07:22:55,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:22:56,398 INFO L130 PetriNetUnfolder]: 462/811 cut-off events. [2023-01-28 07:22:56,398 INFO L131 PetriNetUnfolder]: For 8996/8996 co-relation queries the response was YES. [2023-01-28 07:22:56,403 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 07:22:56,407 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 115 selfloop transitions, 40 changer transitions 10/165 dead transitions. [2023-01-28 07:22:56,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 165 transitions, 2625 flow [2023-01-28 07:22:56,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 07:22:56,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 07:22:56,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2176 transitions. [2023-01-28 07:22:56,412 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38235810929537867 [2023-01-28 07:22:56,412 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2176 transitions. [2023-01-28 07:22:56,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2176 transitions. [2023-01-28 07:22:56,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:22:56,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2176 transitions. [2023-01-28 07:22:56,417 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 07:22:56,421 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 07:22:56,422 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 07:22:56,422 INFO L175 Difference]: Start difference. First operand has 124 places, 142 transitions, 2164 flow. Second operand 7 states and 2176 transitions. [2023-01-28 07:22:56,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 165 transitions, 2625 flow [2023-01-28 07:22:56,461 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 07:22:56,463 INFO L231 Difference]: Finished difference. Result has 128 places, 144 transitions, 2186 flow [2023-01-28 07:22:56,465 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 07:22:56,465 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 104 predicate places. [2023-01-28 07:22:56,465 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 144 transitions, 2186 flow [2023-01-28 07:22:56,466 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 07:22:56,466 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:56,466 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:22:56,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-01-28 07:22:56,467 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 07:22:56,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:56,467 INFO L85 PathProgramCache]: Analyzing trace with hash -633752502, now seen corresponding path program 9 times [2023-01-28 07:22:56,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:56,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514062903] [2023-01-28 07:22:56,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:56,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:22:58,261 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 07:22:58,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:22:58,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514062903] [2023-01-28 07:22:58,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514062903] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:22:58,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:22:58,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 07:22:58,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801953131] [2023-01-28 07:22:58,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:22:58,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-28 07:22:58,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:22:58,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-28 07:22:58,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-01-28 07:22:58,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 813 [2023-01-28 07:22:58,265 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 07:22:58,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:22:58,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 813 [2023-01-28 07:22:58,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:22:59,098 INFO L130 PetriNetUnfolder]: 502/882 cut-off events. [2023-01-28 07:22:59,098 INFO L131 PetriNetUnfolder]: For 10787/10787 co-relation queries the response was YES. [2023-01-28 07:22:59,103 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 07:22:59,107 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 75 selfloop transitions, 102 changer transitions 10/187 dead transitions. [2023-01-28 07:22:59,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 187 transitions, 3062 flow [2023-01-28 07:22:59,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-28 07:22:59,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-01-28 07:22:59,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3445 transitions. [2023-01-28 07:22:59,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3852174885385217 [2023-01-28 07:22:59,113 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3445 transitions. [2023-01-28 07:22:59,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3445 transitions. [2023-01-28 07:22:59,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:22:59,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3445 transitions. [2023-01-28 07:22:59,118 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 07:22:59,124 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 07:22:59,125 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 07:22:59,125 INFO L175 Difference]: Start difference. First operand has 128 places, 144 transitions, 2186 flow. Second operand 11 states and 3445 transitions. [2023-01-28 07:22:59,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 187 transitions, 3062 flow [2023-01-28 07:22:59,165 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 07:22:59,168 INFO L231 Difference]: Finished difference. Result has 138 places, 160 transitions, 2726 flow [2023-01-28 07:22:59,169 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 07:22:59,169 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 114 predicate places. [2023-01-28 07:22:59,169 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 160 transitions, 2726 flow [2023-01-28 07:22:59,170 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 07:22:59,170 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:22:59,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:22:59,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-01-28 07:22:59,170 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 07:22:59,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:22:59,170 INFO L85 PathProgramCache]: Analyzing trace with hash 802823656, now seen corresponding path program 4 times [2023-01-28 07:22:59,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:22:59,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284230080] [2023-01-28 07:22:59,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:22:59,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:22:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:23:00,179 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 07:23:00,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:23:00,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284230080] [2023-01-28 07:23:00,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284230080] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:23:00,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:23:00,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 07:23:00,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797641537] [2023-01-28 07:23:00,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:23:00,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:23:00,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:23:00,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:23:00,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-28 07:23:00,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 813 [2023-01-28 07:23:00,184 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 07:23:00,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:23:00,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 813 [2023-01-28 07:23:00,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:23:00,958 INFO L130 PetriNetUnfolder]: 504/878 cut-off events. [2023-01-28 07:23:00,958 INFO L131 PetriNetUnfolder]: For 11097/11097 co-relation queries the response was YES. [2023-01-28 07:23:00,962 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 07:23:00,966 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 142 selfloop transitions, 47 changer transitions 14/203 dead transitions. [2023-01-28 07:23:00,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 203 transitions, 3520 flow [2023-01-28 07:23:00,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 07:23:00,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 07:23:00,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2618 transitions. [2023-01-28 07:23:00,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40252152521525214 [2023-01-28 07:23:00,971 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2618 transitions. [2023-01-28 07:23:00,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2618 transitions. [2023-01-28 07:23:00,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:23:00,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2618 transitions. [2023-01-28 07:23:00,975 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 07:23:00,979 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 07:23:00,980 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 07:23:00,980 INFO L175 Difference]: Start difference. First operand has 138 places, 160 transitions, 2726 flow. Second operand 8 states and 2618 transitions. [2023-01-28 07:23:00,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 203 transitions, 3520 flow [2023-01-28 07:23:01,027 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 07:23:01,030 INFO L231 Difference]: Finished difference. Result has 143 places, 163 transitions, 2778 flow [2023-01-28 07:23:01,031 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 07:23:01,031 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 119 predicate places. [2023-01-28 07:23:01,031 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 163 transitions, 2778 flow [2023-01-28 07:23:01,031 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 07:23:01,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:23:01,031 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:23:01,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-01-28 07:23:01,032 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 07:23:01,032 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:23:01,032 INFO L85 PathProgramCache]: Analyzing trace with hash 807118418, now seen corresponding path program 10 times [2023-01-28 07:23:01,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:23:01,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566378921] [2023-01-28 07:23:01,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:23:01,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:23:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:23:02,699 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 07:23:02,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:23:02,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566378921] [2023-01-28 07:23:02,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566378921] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:23:02,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:23:02,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 07:23:02,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903991403] [2023-01-28 07:23:02,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:23:02,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:23:02,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:23:02,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:23:02,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-01-28 07:23:02,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 813 [2023-01-28 07:23:02,702 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 07:23:02,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:23:02,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 813 [2023-01-28 07:23:02,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:23:03,487 INFO L130 PetriNetUnfolder]: 518/914 cut-off events. [2023-01-28 07:23:03,487 INFO L131 PetriNetUnfolder]: For 11940/11940 co-relation queries the response was YES. [2023-01-28 07:23:03,492 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 07:23:03,496 INFO L137 encePairwiseOnDemand]: 803/813 looper letters, 125 selfloop transitions, 60 changer transitions 13/198 dead transitions. [2023-01-28 07:23:03,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 198 transitions, 3482 flow [2023-01-28 07:23:03,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 07:23:03,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 07:23:03,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3217 transitions. [2023-01-28 07:23:03,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3956949569495695 [2023-01-28 07:23:03,501 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3217 transitions. [2023-01-28 07:23:03,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3217 transitions. [2023-01-28 07:23:03,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:23:03,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3217 transitions. [2023-01-28 07:23:03,506 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 07:23:03,511 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 07:23:03,511 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 07:23:03,511 INFO L175 Difference]: Start difference. First operand has 143 places, 163 transitions, 2778 flow. Second operand 10 states and 3217 transitions. [2023-01-28 07:23:03,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 198 transitions, 3482 flow [2023-01-28 07:23:03,561 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 07:23:03,564 INFO L231 Difference]: Finished difference. Result has 151 places, 169 transitions, 2918 flow [2023-01-28 07:23:03,565 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 07:23:03,565 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 127 predicate places. [2023-01-28 07:23:03,565 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 169 transitions, 2918 flow [2023-01-28 07:23:03,565 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 07:23:03,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:23:03,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:23:03,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-01-28 07:23:03,566 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 07:23:03,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:23:03,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1930230487, now seen corresponding path program 1 times [2023-01-28 07:23:03,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:23:03,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168441423] [2023-01-28 07:23:03,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:23:03,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:23:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:23:04,550 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 07:23:04,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:23:04,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168441423] [2023-01-28 07:23:04,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168441423] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:23:04,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:23:04,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 07:23:04,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708327508] [2023-01-28 07:23:04,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:23:04,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:23:04,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:23:04,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:23:04,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-01-28 07:23:04,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 813 [2023-01-28 07:23:04,554 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 07:23:04,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:23:04,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 813 [2023-01-28 07:23:04,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:23:05,232 INFO L130 PetriNetUnfolder]: 628/1160 cut-off events. [2023-01-28 07:23:05,232 INFO L131 PetriNetUnfolder]: For 15922/15922 co-relation queries the response was YES. [2023-01-28 07:23:05,238 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 07:23:05,242 INFO L137 encePairwiseOnDemand]: 804/813 looper letters, 133 selfloop transitions, 62 changer transitions 14/209 dead transitions. [2023-01-28 07:23:05,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 209 transitions, 3800 flow [2023-01-28 07:23:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 07:23:05,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 07:23:05,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2180 transitions. [2023-01-28 07:23:05,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3830609734668775 [2023-01-28 07:23:05,245 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2180 transitions. [2023-01-28 07:23:05,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2180 transitions. [2023-01-28 07:23:05,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:23:05,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2180 transitions. [2023-01-28 07:23:05,248 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 07:23:05,251 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 07:23:05,251 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 07:23:05,252 INFO L175 Difference]: Start difference. First operand has 151 places, 169 transitions, 2918 flow. Second operand 7 states and 2180 transitions. [2023-01-28 07:23:05,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 209 transitions, 3800 flow [2023-01-28 07:23:05,307 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 07:23:05,310 INFO L231 Difference]: Finished difference. Result has 157 places, 173 transitions, 3196 flow [2023-01-28 07:23:05,310 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 07:23:05,310 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 133 predicate places. [2023-01-28 07:23:05,310 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 173 transitions, 3196 flow [2023-01-28 07:23:05,311 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 07:23:05,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:23:05,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:23:05,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-01-28 07:23:05,311 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 07:23:05,311 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:23:05,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1269029010, now seen corresponding path program 1 times [2023-01-28 07:23:05,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:23:05,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008164898] [2023-01-28 07:23:05,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:23:05,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:23:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:23:05,953 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 07:23:05,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:23:05,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008164898] [2023-01-28 07:23:05,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008164898] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:23:05,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350310209] [2023-01-28 07:23:05,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:23:05,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:23:05,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:23:05,961 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 07:23:05,962 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 07:23:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:23:06,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 36 conjunts are in the unsatisfiable core [2023-01-28 07:23:06,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:23:07,228 INFO L190 IndexEqualityManager]: detected not equals via solver Received shutdown request... [2023-01-28 07:26:51,928 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 07:26:51,929 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 07:26:52,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2023-01-28 07:26:52,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown