/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 -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 [2023-01-27 18:34:59,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:34:59,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:34:59,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:34:59,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:34:59,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:34:59,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:34:59,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:34:59,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:34:59,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:34:59,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:34:59,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 18:34:59,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 18:34:59,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 18:34:59,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 18:34:59,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 18:34:59,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 18:34:59,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 18:34:59,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 18:34:59,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 18:34:59,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 18:34:59,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 18:34:59,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 18:34:59,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 18:34:59,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 18:34:59,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:34:59,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:34:59,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:34:59,852 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 [2023-01-27 18:34:59,878 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:34:59,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:34:59,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:34:59,879 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:34:59,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:34:59,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:34:59,880 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:34:59,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:34:59,881 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:34:59,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:34:59,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:34:59,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:34:59,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:34:59,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:34:59,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:34:59,882 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:34:59,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:34:59,882 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:34:59,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:34:59,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:34:59,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:34:59,883 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:34:59,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:34:59,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:34:59,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:34:59,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:34:59,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:34:59,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:34:59,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:34:59,884 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:34:59,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:34:59,885 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:35:00,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:35:00,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:35:00,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:35:00,161 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:35:00,161 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:35:00,162 INFO L432 ainManager$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 [2023-01-27 18:35:01,286 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:35:01,720 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:35:01,721 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2023-01-27 18:35:01,760 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9165345f/777fb37391334483a7d5756a4cb27bf3/FLAGd5e3b943e [2023-01-27 18:35:01,775 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9165345f/777fb37391334483a7d5756a4cb27bf3 [2023-01-27 18:35:01,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:35:01,779 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:35:01,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:35:01,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:35:01,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:35:01,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:35:01" (1/1) ... [2023-01-27 18:35:01,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@782548fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:35:01, skipping insertion in model container [2023-01-27 18:35:01,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:35:01" (1/1) ... [2023-01-27 18:35:01,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:35:01,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:35:02,243 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] [2023-01-27 18:35:04,983 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:35:05,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:35:05,492 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:35:05,515 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] [2023-01-27 18:35:05,702 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:35:05,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:35:06,198 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:35:06,198 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:35:06,198 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:35:06,198 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:35:06,198 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:35:06,198 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:35:06,199 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:35:06,205 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:35:06,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:35:06 WrapperNode [2023-01-27 18:35:06,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:35:06,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:35:06,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:35:06,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:35:06,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:35:06" (1/1) ... [2023-01-27 18:35:06,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:35:06" (1/1) ... [2023-01-27 18:35:06,337 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 18, statements flattened = 358 [2023-01-27 18:35:06,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:35:06,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:35:06,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:35:06,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:35:06,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:35:06" (1/1) ... [2023-01-27 18:35:06,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:35:06" (1/1) ... [2023-01-27 18:35:06,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:35:06" (1/1) ... [2023-01-27 18:35:06,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:35:06" (1/1) ... [2023-01-27 18:35:06,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:35:06" (1/1) ... [2023-01-27 18:35:06,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:35:06" (1/1) ... [2023-01-27 18:35:06,398 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:35:06" (1/1) ... [2023-01-27 18:35:06,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:35:06" (1/1) ... [2023-01-27 18:35:06,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:35:06,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:35:06,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:35:06,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:35:06,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:35:06" (1/1) ... [2023-01-27 18:35:06,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:35:06,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:35:06,448 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) [2023-01-27 18:35:06,469 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 [2023-01-27 18:35:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 18:35:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 18:35:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:35:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:35:06,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:35:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-27 18:35:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:35:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:35:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2023-01-27 18:35:06,487 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2023-01-27 18:35:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:35:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-27 18:35:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2023-01-27 18:35:06,487 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2023-01-27 18:35:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:35:06,489 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 18:35:06,893 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:35:06,895 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:35:07,279 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:35:07,290 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:35:07,290 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-01-27 18:35:07,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:35:07 BoogieIcfgContainer [2023-01-27 18:35:07,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:35:07,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:35:07,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:35:07,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:35:07,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:35:01" (1/3) ... [2023-01-27 18:35:07,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b54dc1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:35:07, skipping insertion in model container [2023-01-27 18:35:07,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:35:06" (2/3) ... [2023-01-27 18:35:07,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b54dc1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:35:07, skipping insertion in model container [2023-01-27 18:35:07,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:35:07" (3/3) ... [2023-01-27 18:35:07,303 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2023-01-27 18:35:07,318 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:35:07,318 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-27 18:35:07,319 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:35:07,463 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-27 18:35:07,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 379 places, 387 transitions, 790 flow [2023-01-27 18:35:07,669 INFO L130 PetriNetUnfolder]: 15/385 cut-off events. [2023-01-27 18:35:07,670 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:35:07,680 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. [2023-01-27 18:35:07,681 INFO L82 GeneralOperation]: Start removeDead. Operand has 379 places, 387 transitions, 790 flow [2023-01-27 18:35:07,689 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 377 transitions, 763 flow [2023-01-27 18:35:07,692 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:35:07,703 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 369 places, 377 transitions, 763 flow [2023-01-27 18:35:07,706 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 369 places, 377 transitions, 763 flow [2023-01-27 18:35:07,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 377 transitions, 763 flow [2023-01-27 18:35:07,812 INFO L130 PetriNetUnfolder]: 15/377 cut-off events. [2023-01-27 18:35:07,813 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 18:35:07,817 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. [2023-01-27 18:35:07,825 INFO L119 LiptonReduction]: Number of co-enabled transitions 19092 [2023-01-27 18:36:05,369 WARN L222 SmtUtils]: Spent 14.87s 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) [2023-01-27 18:36:13,302 WARN L222 SmtUtils]: Spent 7.92s 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) [2023-01-27 18:36:32,273 WARN L222 SmtUtils]: Spent 18.97s 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) [2023-01-27 18:36:45,964 WARN L222 SmtUtils]: Spent 13.68s 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) [2023-01-27 18:38:15,862 WARN L222 SmtUtils]: Spent 1.50m 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) [2023-01-27 18:39:00,001 WARN L222 SmtUtils]: Spent 44.13s 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) [2023-01-27 18:40:26,587 WARN L222 SmtUtils]: Spent 1.44m 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) [2023-01-27 18:41:05,445 WARN L222 SmtUtils]: Spent 38.85s 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) [2023-01-27 18:41:05,456 INFO L134 LiptonReduction]: Checked pairs total: 17926 [2023-01-27 18:41:05,457 INFO L136 LiptonReduction]: Total number of compositions: 426 [2023-01-27 18:41:05,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 18:41:05,474 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;@cd25853, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 18:41:05,474 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-01-27 18:41:05,482 INFO L130 PetriNetUnfolder]: 5/17 cut-off events. [2023-01-27 18:41:05,482 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 18:41:05,482 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:05,483 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-27 18:41:05,483 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)] === [2023-01-27 18:41:05,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:05,488 INFO L85 PathProgramCache]: Analyzing trace with hash 613609338, now seen corresponding path program 1 times [2023-01-27 18:41:05,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:05,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828357577] [2023-01-27 18:41:05,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:05,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:06,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:06,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:06,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828357577] [2023-01-27 18:41:06,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828357577] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:06,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:06,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:41:06,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031133807] [2023-01-27 18:41:06,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:06,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:41:06,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:06,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:41:06,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:41:06,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 813 [2023-01-27 18:41:06,513 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) [2023-01-27 18:41:06,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:06,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 813 [2023-01-27 18:41:06,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:06,881 INFO L130 PetriNetUnfolder]: 237/372 cut-off events. [2023-01-27 18:41:06,882 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2023-01-27 18:41:06,882 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. [2023-01-27 18:41:06,884 INFO L137 encePairwiseOnDemand]: 808/813 looper letters, 30 selfloop transitions, 4 changer transitions 3/37 dead transitions. [2023-01-27 18:41:06,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 37 transitions, 163 flow [2023-01-27 18:41:06,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:41:06,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:41:06,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1037 transitions. [2023-01-27 18:41:06,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42517425174251744 [2023-01-27 18:41:06,908 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1037 transitions. [2023-01-27 18:41:06,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1037 transitions. [2023-01-27 18:41:06,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:06,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1037 transitions. [2023-01-27 18:41:06,920 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) [2023-01-27 18:41:06,928 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) [2023-01-27 18:41:06,930 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) [2023-01-27 18:41:06,931 INFO L175 Difference]: Start difference. First operand has 24 places, 23 transitions, 55 flow. Second operand 3 states and 1037 transitions. [2023-01-27 18:41:06,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 37 transitions, 163 flow [2023-01-27 18:41:06,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 37 transitions, 155 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 18:41:06,937 INFO L231 Difference]: Finished difference. Result has 25 places, 26 transitions, 80 flow [2023-01-27 18:41:06,940 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} [2023-01-27 18:41:06,944 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2023-01-27 18:41:06,944 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 26 transitions, 80 flow [2023-01-27 18:41:06,945 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) [2023-01-27 18:41:06,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:06,948 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:06,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 18:41:06,953 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)] === [2023-01-27 18:41:06,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:06,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1842022213, now seen corresponding path program 1 times [2023-01-27 18:41:06,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:06,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601939937] [2023-01-27 18:41:06,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:06,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:07,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:07,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:07,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601939937] [2023-01-27 18:41:07,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601939937] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:07,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:07,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 18:41:07,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110364347] [2023-01-27 18:41:07,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:07,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-27 18:41:07,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:07,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-27 18:41:07,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-01-27 18:41:07,838 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 813 [2023-01-27 18:41:07,840 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) [2023-01-27 18:41:07,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:07,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 813 [2023-01-27 18:41:07,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:08,315 INFO L130 PetriNetUnfolder]: 242/389 cut-off events. [2023-01-27 18:41:08,316 INFO L131 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2023-01-27 18:41:08,316 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. [2023-01-27 18:41:08,317 INFO L137 encePairwiseOnDemand]: 806/813 looper letters, 35 selfloop transitions, 7 changer transitions 8/50 dead transitions. [2023-01-27 18:41:08,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 50 transitions, 243 flow [2023-01-27 18:41:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 18:41:08,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 18:41:08,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1674 transitions. [2023-01-27 18:41:08,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4118081180811808 [2023-01-27 18:41:08,322 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1674 transitions. [2023-01-27 18:41:08,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1674 transitions. [2023-01-27 18:41:08,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:08,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1674 transitions. [2023-01-27 18:41:08,326 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) [2023-01-27 18:41:08,332 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) [2023-01-27 18:41:08,334 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) [2023-01-27 18:41:08,335 INFO L175 Difference]: Start difference. First operand has 25 places, 26 transitions, 80 flow. Second operand 5 states and 1674 transitions. [2023-01-27 18:41:08,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 50 transitions, 243 flow [2023-01-27 18:41:08,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 50 transitions, 233 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:41:08,337 INFO L231 Difference]: Finished difference. Result has 29 places, 26 transitions, 106 flow [2023-01-27 18:41:08,337 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} [2023-01-27 18:41:08,338 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 5 predicate places. [2023-01-27 18:41:08,338 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 26 transitions, 106 flow [2023-01-27 18:41:08,339 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) [2023-01-27 18:41:08,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:08,339 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:08,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 18:41:08,339 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)] === [2023-01-27 18:41:08,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:08,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1596026477, now seen corresponding path program 1 times [2023-01-27 18:41:08,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:08,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981758588] [2023-01-27 18:41:08,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:08,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:08,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:08,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:08,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981758588] [2023-01-27 18:41:08,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981758588] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:08,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:08,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:41:08,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501868606] [2023-01-27 18:41:08,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:08,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:41:08,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:08,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:41:08,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:41:08,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 813 [2023-01-27 18:41:08,707 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) [2023-01-27 18:41:08,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:08,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 813 [2023-01-27 18:41:08,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:09,035 INFO L130 PetriNetUnfolder]: 177/314 cut-off events. [2023-01-27 18:41:09,035 INFO L131 PetriNetUnfolder]: For 200/200 co-relation queries the response was YES. [2023-01-27 18:41:09,035 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. [2023-01-27 18:41:09,036 INFO L137 encePairwiseOnDemand]: 809/813 looper letters, 23 selfloop transitions, 4 changer transitions 10/37 dead transitions. [2023-01-27 18:41:09,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 37 transitions, 217 flow [2023-01-27 18:41:09,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:41:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:41:09,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1032 transitions. [2023-01-27 18:41:09,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4231242312423124 [2023-01-27 18:41:09,039 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1032 transitions. [2023-01-27 18:41:09,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1032 transitions. [2023-01-27 18:41:09,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:09,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1032 transitions. [2023-01-27 18:41:09,042 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) [2023-01-27 18:41:09,046 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) [2023-01-27 18:41:09,048 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) [2023-01-27 18:41:09,048 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 106 flow. Second operand 3 states and 1032 transitions. [2023-01-27 18:41:09,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 37 transitions, 217 flow [2023-01-27 18:41:09,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 211 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:41:09,052 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 112 flow [2023-01-27 18:41:09,052 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} [2023-01-27 18:41:09,053 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 7 predicate places. [2023-01-27 18:41:09,054 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 112 flow [2023-01-27 18:41:09,054 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) [2023-01-27 18:41:09,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:09,054 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:09,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 18:41:09,055 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)] === [2023-01-27 18:41:09,055 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:09,055 INFO L85 PathProgramCache]: Analyzing trace with hash -629217462, now seen corresponding path program 1 times [2023-01-27 18:41:09,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:09,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543540082] [2023-01-27 18:41:09,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:09,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:11,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:11,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:11,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543540082] [2023-01-27 18:41:11,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543540082] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:11,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:11,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:41:11,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124061269] [2023-01-27 18:41:11,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:11,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:41:11,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:11,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:41:11,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-27 18:41:11,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 813 [2023-01-27 18:41:11,336 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) [2023-01-27 18:41:11,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:11,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 813 [2023-01-27 18:41:11,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:12,179 INFO L130 PetriNetUnfolder]: 196/389 cut-off events. [2023-01-27 18:41:12,179 INFO L131 PetriNetUnfolder]: For 517/517 co-relation queries the response was YES. [2023-01-27 18:41:12,180 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. [2023-01-27 18:41:12,181 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 43 selfloop transitions, 12 changer transitions 10/65 dead transitions. [2023-01-27 18:41:12,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 65 transitions, 406 flow [2023-01-27 18:41:12,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-27 18:41:12,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-27 18:41:12,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2296 transitions. [2023-01-27 18:41:12,187 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4034440344403444 [2023-01-27 18:41:12,187 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2296 transitions. [2023-01-27 18:41:12,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2296 transitions. [2023-01-27 18:41:12,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:12,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2296 transitions. [2023-01-27 18:41:12,193 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) [2023-01-27 18:41:12,201 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) [2023-01-27 18:41:12,204 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) [2023-01-27 18:41:12,204 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 112 flow. Second operand 7 states and 2296 transitions. [2023-01-27 18:41:12,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 65 transitions, 406 flow [2023-01-27 18:41:12,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 65 transitions, 370 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-27 18:41:12,209 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 166 flow [2023-01-27 18:41:12,209 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} [2023-01-27 18:41:12,211 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 11 predicate places. [2023-01-27 18:41:12,211 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 166 flow [2023-01-27 18:41:12,212 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) [2023-01-27 18:41:12,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:12,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:12,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-27 18:41:12,213 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)] === [2023-01-27 18:41:12,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:12,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1713199274, now seen corresponding path program 2 times [2023-01-27 18:41:12,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:12,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250745922] [2023-01-27 18:41:12,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:12,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:17,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:17,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:17,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250745922] [2023-01-27 18:41:17,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250745922] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:17,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:17,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:41:17,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574768462] [2023-01-27 18:41:17,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:17,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-27 18:41:17,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:17,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-27 18:41:17,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:41:17,817 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 813 [2023-01-27 18:41:17,819 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) [2023-01-27 18:41:17,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:17,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 813 [2023-01-27 18:41:17,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:18,723 INFO L130 PetriNetUnfolder]: 273/520 cut-off events. [2023-01-27 18:41:18,723 INFO L131 PetriNetUnfolder]: For 653/653 co-relation queries the response was YES. [2023-01-27 18:41:18,724 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. [2023-01-27 18:41:18,726 INFO L137 encePairwiseOnDemand]: 801/813 looper letters, 34 selfloop transitions, 31 changer transitions 18/83 dead transitions. [2023-01-27 18:41:18,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 83 transitions, 560 flow [2023-01-27 18:41:18,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-27 18:41:18,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-01-27 18:41:18,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3440 transitions. [2023-01-27 18:41:18,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38465839203846586 [2023-01-27 18:41:18,735 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3440 transitions. [2023-01-27 18:41:18,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3440 transitions. [2023-01-27 18:41:18,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:18,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3440 transitions. [2023-01-27 18:41:18,742 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) [2023-01-27 18:41:18,753 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) [2023-01-27 18:41:18,755 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) [2023-01-27 18:41:18,755 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 166 flow. Second operand 11 states and 3440 transitions. [2023-01-27 18:41:18,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 83 transitions, 560 flow [2023-01-27 18:41:18,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 83 transitions, 556 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-01-27 18:41:18,759 INFO L231 Difference]: Finished difference. Result has 52 places, 51 transitions, 410 flow [2023-01-27 18:41:18,759 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} [2023-01-27 18:41:18,760 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 28 predicate places. [2023-01-27 18:41:18,760 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 51 transitions, 410 flow [2023-01-27 18:41:18,761 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) [2023-01-27 18:41:18,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:18,761 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:18,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-27 18:41:18,762 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)] === [2023-01-27 18:41:18,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:18,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1932884782, now seen corresponding path program 1 times [2023-01-27 18:41:18,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:18,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314653451] [2023-01-27 18:41:18,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:18,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:21,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:21,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:21,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314653451] [2023-01-27 18:41:21,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314653451] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:21,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:21,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:41:21,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583530663] [2023-01-27 18:41:21,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:21,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-27 18:41:21,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:21,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-27 18:41:21,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:41:21,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 813 [2023-01-27 18:41:21,009 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) [2023-01-27 18:41:21,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:21,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 813 [2023-01-27 18:41:21,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:21,749 INFO L130 PetriNetUnfolder]: 273/516 cut-off events. [2023-01-27 18:41:21,750 INFO L131 PetriNetUnfolder]: For 1020/1020 co-relation queries the response was YES. [2023-01-27 18:41:21,751 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. [2023-01-27 18:41:21,753 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 47 selfloop transitions, 17 changer transitions 11/75 dead transitions. [2023-01-27 18:41:21,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 75 transitions, 665 flow [2023-01-27 18:41:21,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-27 18:41:21,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-27 18:41:21,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2201 transitions. [2023-01-27 18:41:21,758 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3867510103672465 [2023-01-27 18:41:21,759 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2201 transitions. [2023-01-27 18:41:21,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2201 transitions. [2023-01-27 18:41:21,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:21,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2201 transitions. [2023-01-27 18:41:21,764 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) [2023-01-27 18:41:21,770 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) [2023-01-27 18:41:21,772 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) [2023-01-27 18:41:21,772 INFO L175 Difference]: Start difference. First operand has 52 places, 51 transitions, 410 flow. Second operand 7 states and 2201 transitions. [2023-01-27 18:41:21,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 75 transitions, 665 flow [2023-01-27 18:41:21,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 75 transitions, 624 flow, removed 20 selfloop flow, removed 1 redundant places. [2023-01-27 18:41:21,778 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 443 flow [2023-01-27 18:41:21,779 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} [2023-01-27 18:41:21,779 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 36 predicate places. [2023-01-27 18:41:21,779 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 443 flow [2023-01-27 18:41:21,781 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) [2023-01-27 18:41:21,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:21,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:21,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-27 18:41:21,781 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)] === [2023-01-27 18:41:21,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:21,781 INFO L85 PathProgramCache]: Analyzing trace with hash -624922700, now seen corresponding path program 2 times [2023-01-27 18:41:21,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:21,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702457181] [2023-01-27 18:41:21,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:21,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:24,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:24,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702457181] [2023-01-27 18:41:24,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702457181] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:24,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:24,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:41:24,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546729496] [2023-01-27 18:41:24,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:24,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:41:24,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:24,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:41:24,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-01-27 18:41:24,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 813 [2023-01-27 18:41:24,827 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) [2023-01-27 18:41:24,827 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:24,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 813 [2023-01-27 18:41:24,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:25,744 INFO L130 PetriNetUnfolder]: 367/661 cut-off events. [2023-01-27 18:41:25,745 INFO L131 PetriNetUnfolder]: For 2497/2497 co-relation queries the response was YES. [2023-01-27 18:41:25,746 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. [2023-01-27 18:41:25,749 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 55 selfloop transitions, 42 changer transitions 10/107 dead transitions. [2023-01-27 18:41:25,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 107 transitions, 1019 flow [2023-01-27 18:41:25,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-27 18:41:25,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-27 18:41:25,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3179 transitions. [2023-01-27 18:41:25,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39102091020910207 [2023-01-27 18:41:25,757 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3179 transitions. [2023-01-27 18:41:25,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3179 transitions. [2023-01-27 18:41:25,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:25,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3179 transitions. [2023-01-27 18:41:25,769 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) [2023-01-27 18:41:25,779 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) [2023-01-27 18:41:25,781 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) [2023-01-27 18:41:25,781 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 443 flow. Second operand 10 states and 3179 transitions. [2023-01-27 18:41:25,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 107 transitions, 1019 flow [2023-01-27 18:41:25,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 107 transitions, 980 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-01-27 18:41:25,794 INFO L231 Difference]: Finished difference. Result has 71 places, 79 transitions, 797 flow [2023-01-27 18:41:25,794 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} [2023-01-27 18:41:25,795 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 47 predicate places. [2023-01-27 18:41:25,795 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 79 transitions, 797 flow [2023-01-27 18:41:25,796 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) [2023-01-27 18:41:25,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:25,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:25,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-27 18:41:25,796 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)] === [2023-01-27 18:41:25,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:25,796 INFO L85 PathProgramCache]: Analyzing trace with hash 808012148, now seen corresponding path program 3 times [2023-01-27 18:41:25,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:25,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428556799] [2023-01-27 18:41:25,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:25,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:28,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:28,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:28,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428556799] [2023-01-27 18:41:28,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428556799] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:28,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:28,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:41:28,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914103222] [2023-01-27 18:41:28,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:28,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:41:28,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:28,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:41:28,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-01-27 18:41:28,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 813 [2023-01-27 18:41:28,077 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) [2023-01-27 18:41:28,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:28,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 813 [2023-01-27 18:41:28,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:28,865 INFO L130 PetriNetUnfolder]: 384/690 cut-off events. [2023-01-27 18:41:28,865 INFO L131 PetriNetUnfolder]: For 2839/2839 co-relation queries the response was YES. [2023-01-27 18:41:28,868 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. [2023-01-27 18:41:28,870 INFO L137 encePairwiseOnDemand]: 803/813 looper letters, 71 selfloop transitions, 36 changer transitions 12/119 dead transitions. [2023-01-27 18:41:28,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 119 transitions, 1329 flow [2023-01-27 18:41:28,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-27 18:41:28,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-27 18:41:28,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2897 transitions. [2023-01-27 18:41:28,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3959272926062594 [2023-01-27 18:41:28,877 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2897 transitions. [2023-01-27 18:41:28,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2897 transitions. [2023-01-27 18:41:28,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:28,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2897 transitions. [2023-01-27 18:41:28,884 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) [2023-01-27 18:41:28,892 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) [2023-01-27 18:41:28,894 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) [2023-01-27 18:41:28,894 INFO L175 Difference]: Start difference. First operand has 71 places, 79 transitions, 797 flow. Second operand 9 states and 2897 transitions. [2023-01-27 18:41:28,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 119 transitions, 1329 flow [2023-01-27 18:41:28,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 119 transitions, 1177 flow, removed 52 selfloop flow, removed 4 redundant places. [2023-01-27 18:41:28,909 INFO L231 Difference]: Finished difference. Result has 80 places, 92 transitions, 940 flow [2023-01-27 18:41:28,910 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} [2023-01-27 18:41:28,910 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 56 predicate places. [2023-01-27 18:41:28,910 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 92 transitions, 940 flow [2023-01-27 18:41:28,911 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) [2023-01-27 18:41:28,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:28,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:28,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-27 18:41:28,911 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)] === [2023-01-27 18:41:28,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:28,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1869477730, now seen corresponding path program 4 times [2023-01-27 18:41:28,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:28,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196988396] [2023-01-27 18:41:28,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:28,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:31,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:31,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196988396] [2023-01-27 18:41:31,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196988396] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:31,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:31,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:41:31,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790666497] [2023-01-27 18:41:31,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:31,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:41:31,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:31,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:41:31,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-01-27 18:41:31,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 813 [2023-01-27 18:41:31,127 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) [2023-01-27 18:41:31,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:31,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 813 [2023-01-27 18:41:31,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:31,992 INFO L130 PetriNetUnfolder]: 411/735 cut-off events. [2023-01-27 18:41:31,992 INFO L131 PetriNetUnfolder]: For 3419/3419 co-relation queries the response was YES. [2023-01-27 18:41:31,995 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. [2023-01-27 18:41:31,998 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 76 selfloop transitions, 52 changer transitions 19/147 dead transitions. [2023-01-27 18:41:31,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 147 transitions, 1612 flow [2023-01-27 18:41:31,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-27 18:41:31,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-27 18:41:32,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3222 transitions. [2023-01-27 18:41:32,006 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.396309963099631 [2023-01-27 18:41:32,006 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3222 transitions. [2023-01-27 18:41:32,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3222 transitions. [2023-01-27 18:41:32,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:32,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3222 transitions. [2023-01-27 18:41:32,012 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) [2023-01-27 18:41:32,021 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) [2023-01-27 18:41:32,022 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) [2023-01-27 18:41:32,022 INFO L175 Difference]: Start difference. First operand has 80 places, 92 transitions, 940 flow. Second operand 10 states and 3222 transitions. [2023-01-27 18:41:32,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 147 transitions, 1612 flow [2023-01-27 18:41:32,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 147 transitions, 1590 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-01-27 18:41:32,037 INFO L231 Difference]: Finished difference. Result has 91 places, 109 transitions, 1275 flow [2023-01-27 18:41:32,038 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} [2023-01-27 18:41:32,038 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 67 predicate places. [2023-01-27 18:41:32,038 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 109 transitions, 1275 flow [2023-01-27 18:41:32,039 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) [2023-01-27 18:41:32,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:32,039 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:32,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-27 18:41:32,039 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)] === [2023-01-27 18:41:32,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:32,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1770099818, now seen corresponding path program 5 times [2023-01-27 18:41:32,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:32,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777494804] [2023-01-27 18:41:32,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:32,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:34,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:34,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:34,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777494804] [2023-01-27 18:41:34,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777494804] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:34,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:34,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:41:34,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298948174] [2023-01-27 18:41:34,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:34,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:41:34,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:34,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:41:34,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-01-27 18:41:34,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 813 [2023-01-27 18:41:34,142 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) [2023-01-27 18:41:34,142 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:34,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 813 [2023-01-27 18:41:34,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:34,892 INFO L130 PetriNetUnfolder]: 428/762 cut-off events. [2023-01-27 18:41:34,892 INFO L131 PetriNetUnfolder]: For 4676/4676 co-relation queries the response was YES. [2023-01-27 18:41:34,895 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. [2023-01-27 18:41:34,899 INFO L137 encePairwiseOnDemand]: 803/813 looper letters, 85 selfloop transitions, 51 changer transitions 12/148 dead transitions. [2023-01-27 18:41:34,899 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 148 transitions, 1874 flow [2023-01-27 18:41:34,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-27 18:41:34,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-27 18:41:34,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2898 transitions. [2023-01-27 18:41:34,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3960639606396064 [2023-01-27 18:41:34,906 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2898 transitions. [2023-01-27 18:41:34,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2898 transitions. [2023-01-27 18:41:34,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:34,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2898 transitions. [2023-01-27 18:41:34,912 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) [2023-01-27 18:41:34,918 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) [2023-01-27 18:41:34,919 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) [2023-01-27 18:41:34,919 INFO L175 Difference]: Start difference. First operand has 91 places, 109 transitions, 1275 flow. Second operand 9 states and 2898 transitions. [2023-01-27 18:41:34,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 148 transitions, 1874 flow [2023-01-27 18:41:34,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 148 transitions, 1824 flow, removed 25 selfloop flow, removed 0 redundant places. [2023-01-27 18:41:34,944 INFO L231 Difference]: Finished difference. Result has 102 places, 122 transitions, 1541 flow [2023-01-27 18:41:34,944 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} [2023-01-27 18:41:34,944 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 78 predicate places. [2023-01-27 18:41:34,945 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 122 transitions, 1541 flow [2023-01-27 18:41:34,945 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) [2023-01-27 18:41:34,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:34,945 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:34,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-27 18:41:34,945 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)] === [2023-01-27 18:41:34,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:34,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1773501758, now seen corresponding path program 6 times [2023-01-27 18:41:34,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:34,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652977738] [2023-01-27 18:41:34,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:34,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:36,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:36,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:36,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652977738] [2023-01-27 18:41:36,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652977738] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:36,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:36,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:41:36,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144510100] [2023-01-27 18:41:36,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:36,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:41:36,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:36,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:41:36,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-27 18:41:36,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 813 [2023-01-27 18:41:36,119 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) [2023-01-27 18:41:36,119 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:36,119 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 813 [2023-01-27 18:41:36,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:36,825 INFO L130 PetriNetUnfolder]: 424/750 cut-off events. [2023-01-27 18:41:36,825 INFO L131 PetriNetUnfolder]: For 5593/5593 co-relation queries the response was YES. [2023-01-27 18:41:36,828 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. [2023-01-27 18:41:36,831 INFO L137 encePairwiseOnDemand]: 806/813 looper letters, 115 selfloop transitions, 36 changer transitions 10/161 dead transitions. [2023-01-27 18:41:36,832 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 161 transitions, 2160 flow [2023-01-27 18:41:36,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-27 18:41:36,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-27 18:41:36,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2614 transitions. [2023-01-27 18:41:36,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40190651906519065 [2023-01-27 18:41:36,838 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2614 transitions. [2023-01-27 18:41:36,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2614 transitions. [2023-01-27 18:41:36,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:36,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2614 transitions. [2023-01-27 18:41:36,843 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) [2023-01-27 18:41:36,848 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) [2023-01-27 18:41:36,849 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) [2023-01-27 18:41:36,849 INFO L175 Difference]: Start difference. First operand has 102 places, 122 transitions, 1541 flow. Second operand 8 states and 2614 transitions. [2023-01-27 18:41:36,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 161 transitions, 2160 flow [2023-01-27 18:41:36,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 161 transitions, 2079 flow, removed 31 selfloop flow, removed 3 redundant places. [2023-01-27 18:41:36,876 INFO L231 Difference]: Finished difference. Result has 108 places, 126 transitions, 1615 flow [2023-01-27 18:41:36,876 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} [2023-01-27 18:41:36,877 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 84 predicate places. [2023-01-27 18:41:36,877 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 126 transitions, 1615 flow [2023-01-27 18:41:36,878 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) [2023-01-27 18:41:36,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:36,878 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:36,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-27 18:41:36,878 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)] === [2023-01-27 18:41:36,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:36,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1717495852, now seen corresponding path program 7 times [2023-01-27 18:41:36,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:36,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566338977] [2023-01-27 18:41:36,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:36,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:37,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:37,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:37,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566338977] [2023-01-27 18:41:37,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566338977] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:37,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:37,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:41:37,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487848997] [2023-01-27 18:41:37,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:37,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:41:37,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:37,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:41:37,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-27 18:41:37,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 813 [2023-01-27 18:41:37,941 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) [2023-01-27 18:41:37,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:37,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 813 [2023-01-27 18:41:37,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:38,504 INFO L130 PetriNetUnfolder]: 428/758 cut-off events. [2023-01-27 18:41:38,504 INFO L131 PetriNetUnfolder]: For 6489/6489 co-relation queries the response was YES. [2023-01-27 18:41:38,508 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. [2023-01-27 18:41:38,512 INFO L137 encePairwiseOnDemand]: 806/813 looper letters, 114 selfloop transitions, 38 changer transitions 12/164 dead transitions. [2023-01-27 18:41:38,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 164 transitions, 2245 flow [2023-01-27 18:41:38,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-27 18:41:38,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-27 18:41:38,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2294 transitions. [2023-01-27 18:41:38,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.403092602354595 [2023-01-27 18:41:38,517 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2294 transitions. [2023-01-27 18:41:38,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2294 transitions. [2023-01-27 18:41:38,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:38,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2294 transitions. [2023-01-27 18:41:38,522 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) [2023-01-27 18:41:38,526 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) [2023-01-27 18:41:38,527 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) [2023-01-27 18:41:38,527 INFO L175 Difference]: Start difference. First operand has 108 places, 126 transitions, 1615 flow. Second operand 7 states and 2294 transitions. [2023-01-27 18:41:38,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 164 transitions, 2245 flow [2023-01-27 18:41:38,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 164 transitions, 2213 flow, removed 12 selfloop flow, removed 2 redundant places. [2023-01-27 18:41:38,559 INFO L231 Difference]: Finished difference. Result has 114 places, 128 transitions, 1713 flow [2023-01-27 18:41:38,559 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} [2023-01-27 18:41:38,560 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 90 predicate places. [2023-01-27 18:41:38,560 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 128 transitions, 1713 flow [2023-01-27 18:41:38,560 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) [2023-01-27 18:41:38,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:38,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:38,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-27 18:41:38,561 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)] === [2023-01-27 18:41:38,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:38,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1973792680, now seen corresponding path program 8 times [2023-01-27 18:41:38,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:38,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325970577] [2023-01-27 18:41:38,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:38,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:40,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:40,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:40,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325970577] [2023-01-27 18:41:40,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325970577] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:40,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:40,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:41:40,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491448062] [2023-01-27 18:41:40,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:40,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:41:40,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:40,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:41:40,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-01-27 18:41:40,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 813 [2023-01-27 18:41:40,496 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) [2023-01-27 18:41:40,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:40,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 813 [2023-01-27 18:41:40,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:41,212 INFO L130 PetriNetUnfolder]: 472/833 cut-off events. [2023-01-27 18:41:41,212 INFO L131 PetriNetUnfolder]: For 8758/8758 co-relation queries the response was YES. [2023-01-27 18:41:41,216 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. [2023-01-27 18:41:41,220 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 68 selfloop transitions, 91 changer transitions 10/169 dead transitions. [2023-01-27 18:41:41,220 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 169 transitions, 2444 flow [2023-01-27 18:41:41,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-27 18:41:41,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-27 18:41:41,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3217 transitions. [2023-01-27 18:41:41,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3956949569495695 [2023-01-27 18:41:41,227 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3217 transitions. [2023-01-27 18:41:41,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3217 transitions. [2023-01-27 18:41:41,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:41,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3217 transitions. [2023-01-27 18:41:41,234 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) [2023-01-27 18:41:41,240 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) [2023-01-27 18:41:41,241 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) [2023-01-27 18:41:41,241 INFO L175 Difference]: Start difference. First operand has 114 places, 128 transitions, 1713 flow. Second operand 10 states and 3217 transitions. [2023-01-27 18:41:41,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 169 transitions, 2444 flow [2023-01-27 18:41:41,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 169 transitions, 2382 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-01-27 18:41:41,284 INFO L231 Difference]: Finished difference. Result has 124 places, 142 transitions, 2164 flow [2023-01-27 18:41:41,284 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} [2023-01-27 18:41:41,285 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 100 predicate places. [2023-01-27 18:41:41,285 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 142 transitions, 2164 flow [2023-01-27 18:41:41,285 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) [2023-01-27 18:41:41,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:41,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:41,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-01-27 18:41:41,286 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)] === [2023-01-27 18:41:41,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:41,286 INFO L85 PathProgramCache]: Analyzing trace with hash -390220190, now seen corresponding path program 3 times [2023-01-27 18:41:41,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:41,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169677291] [2023-01-27 18:41:41,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:41,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:44,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:44,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:44,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169677291] [2023-01-27 18:41:44,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169677291] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:44,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:44,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-27 18:41:44,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687445010] [2023-01-27 18:41:44,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:44,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-27 18:41:44,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:44,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-27 18:41:44,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-01-27 18:41:44,648 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 813 [2023-01-27 18:41:44,649 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) [2023-01-27 18:41:44,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:44,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 813 [2023-01-27 18:41:44,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:45,394 INFO L130 PetriNetUnfolder]: 462/811 cut-off events. [2023-01-27 18:41:45,394 INFO L131 PetriNetUnfolder]: For 8996/8996 co-relation queries the response was YES. [2023-01-27 18:41:45,398 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. [2023-01-27 18:41:45,402 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 115 selfloop transitions, 40 changer transitions 10/165 dead transitions. [2023-01-27 18:41:45,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 165 transitions, 2625 flow [2023-01-27 18:41:45,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-27 18:41:45,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-27 18:41:45,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2176 transitions. [2023-01-27 18:41:45,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38235810929537867 [2023-01-27 18:41:45,407 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2176 transitions. [2023-01-27 18:41:45,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2176 transitions. [2023-01-27 18:41:45,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:45,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2176 transitions. [2023-01-27 18:41:45,411 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) [2023-01-27 18:41:45,416 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) [2023-01-27 18:41:45,417 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) [2023-01-27 18:41:45,417 INFO L175 Difference]: Start difference. First operand has 124 places, 142 transitions, 2164 flow. Second operand 7 states and 2176 transitions. [2023-01-27 18:41:45,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 165 transitions, 2625 flow [2023-01-27 18:41:45,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 165 transitions, 2493 flow, removed 42 selfloop flow, removed 5 redundant places. [2023-01-27 18:41:45,459 INFO L231 Difference]: Finished difference. Result has 128 places, 144 transitions, 2186 flow [2023-01-27 18:41:45,459 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} [2023-01-27 18:41:45,460 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 104 predicate places. [2023-01-27 18:41:45,460 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 144 transitions, 2186 flow [2023-01-27 18:41:45,460 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) [2023-01-27 18:41:45,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:45,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:45,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-01-27 18:41:45,461 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)] === [2023-01-27 18:41:45,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:45,461 INFO L85 PathProgramCache]: Analyzing trace with hash -633752502, now seen corresponding path program 9 times [2023-01-27 18:41:45,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:45,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775875574] [2023-01-27 18:41:45,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:45,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:47,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:47,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:47,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775875574] [2023-01-27 18:41:47,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775875574] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:47,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:47,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-27 18:41:47,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53934749] [2023-01-27 18:41:47,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:47,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-27 18:41:47,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:47,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-27 18:41:47,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-01-27 18:41:47,175 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 813 [2023-01-27 18:41:47,177 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) [2023-01-27 18:41:47,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:47,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 813 [2023-01-27 18:41:47,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:47,997 INFO L130 PetriNetUnfolder]: 502/882 cut-off events. [2023-01-27 18:41:47,997 INFO L131 PetriNetUnfolder]: For 10787/10787 co-relation queries the response was YES. [2023-01-27 18:41:48,001 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. [2023-01-27 18:41:48,004 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 75 selfloop transitions, 102 changer transitions 10/187 dead transitions. [2023-01-27 18:41:48,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 187 transitions, 3062 flow [2023-01-27 18:41:48,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-27 18:41:48,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-01-27 18:41:48,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3445 transitions. [2023-01-27 18:41:48,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3852174885385217 [2023-01-27 18:41:48,009 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3445 transitions. [2023-01-27 18:41:48,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3445 transitions. [2023-01-27 18:41:48,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:48,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3445 transitions. [2023-01-27 18:41:48,014 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) [2023-01-27 18:41:48,024 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) [2023-01-27 18:41:48,025 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) [2023-01-27 18:41:48,025 INFO L175 Difference]: Start difference. First operand has 128 places, 144 transitions, 2186 flow. Second operand 11 states and 3445 transitions. [2023-01-27 18:41:48,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 187 transitions, 3062 flow [2023-01-27 18:41:48,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 187 transitions, 2970 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-01-27 18:41:48,066 INFO L231 Difference]: Finished difference. Result has 138 places, 160 transitions, 2726 flow [2023-01-27 18:41:48,066 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} [2023-01-27 18:41:48,067 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 114 predicate places. [2023-01-27 18:41:48,067 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 160 transitions, 2726 flow [2023-01-27 18:41:48,068 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) [2023-01-27 18:41:48,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:48,068 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:48,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-01-27 18:41:48,068 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)] === [2023-01-27 18:41:48,068 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:48,069 INFO L85 PathProgramCache]: Analyzing trace with hash 802823656, now seen corresponding path program 4 times [2023-01-27 18:41:48,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:48,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523918064] [2023-01-27 18:41:48,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:48,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:49,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:49,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:49,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523918064] [2023-01-27 18:41:49,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523918064] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:49,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:49,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:41:49,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999088032] [2023-01-27 18:41:49,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:49,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:41:49,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:49,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:41:49,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-27 18:41:49,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 813 [2023-01-27 18:41:49,025 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) [2023-01-27 18:41:49,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:49,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 813 [2023-01-27 18:41:49,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:49,763 INFO L130 PetriNetUnfolder]: 504/878 cut-off events. [2023-01-27 18:41:49,763 INFO L131 PetriNetUnfolder]: For 11097/11097 co-relation queries the response was YES. [2023-01-27 18:41:49,768 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. [2023-01-27 18:41:49,772 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 142 selfloop transitions, 47 changer transitions 14/203 dead transitions. [2023-01-27 18:41:49,772 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 203 transitions, 3520 flow [2023-01-27 18:41:49,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-27 18:41:49,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-27 18:41:49,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2618 transitions. [2023-01-27 18:41:49,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40252152521525214 [2023-01-27 18:41:49,776 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2618 transitions. [2023-01-27 18:41:49,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2618 transitions. [2023-01-27 18:41:49,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:49,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2618 transitions. [2023-01-27 18:41:49,780 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) [2023-01-27 18:41:49,784 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) [2023-01-27 18:41:49,784 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) [2023-01-27 18:41:49,784 INFO L175 Difference]: Start difference. First operand has 138 places, 160 transitions, 2726 flow. Second operand 8 states and 2618 transitions. [2023-01-27 18:41:49,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 203 transitions, 3520 flow [2023-01-27 18:41:49,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 203 transitions, 3403 flow, removed 56 selfloop flow, removed 3 redundant places. [2023-01-27 18:41:49,832 INFO L231 Difference]: Finished difference. Result has 143 places, 163 transitions, 2778 flow [2023-01-27 18:41:49,833 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} [2023-01-27 18:41:49,833 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 119 predicate places. [2023-01-27 18:41:49,833 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 163 transitions, 2778 flow [2023-01-27 18:41:49,833 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) [2023-01-27 18:41:49,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:49,834 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:49,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-01-27 18:41:49,834 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)] === [2023-01-27 18:41:49,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:49,834 INFO L85 PathProgramCache]: Analyzing trace with hash 807118418, now seen corresponding path program 10 times [2023-01-27 18:41:49,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:49,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109228542] [2023-01-27 18:41:49,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:49,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:51,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:51,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:51,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109228542] [2023-01-27 18:41:51,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109228542] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:51,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:51,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:41:51,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629650286] [2023-01-27 18:41:51,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:51,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:41:51,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:51,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:41:51,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-01-27 18:41:51,587 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 813 [2023-01-27 18:41:51,588 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) [2023-01-27 18:41:51,588 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:51,588 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 813 [2023-01-27 18:41:51,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:52,358 INFO L130 PetriNetUnfolder]: 518/914 cut-off events. [2023-01-27 18:41:52,359 INFO L131 PetriNetUnfolder]: For 11940/11940 co-relation queries the response was YES. [2023-01-27 18:41:52,363 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. [2023-01-27 18:41:52,370 INFO L137 encePairwiseOnDemand]: 803/813 looper letters, 125 selfloop transitions, 60 changer transitions 13/198 dead transitions. [2023-01-27 18:41:52,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 198 transitions, 3482 flow [2023-01-27 18:41:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-27 18:41:52,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-27 18:41:52,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3217 transitions. [2023-01-27 18:41:52,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3956949569495695 [2023-01-27 18:41:52,375 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3217 transitions. [2023-01-27 18:41:52,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3217 transitions. [2023-01-27 18:41:52,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:52,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3217 transitions. [2023-01-27 18:41:52,381 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) [2023-01-27 18:41:52,386 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) [2023-01-27 18:41:52,387 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) [2023-01-27 18:41:52,387 INFO L175 Difference]: Start difference. First operand has 143 places, 163 transitions, 2778 flow. Second operand 10 states and 3217 transitions. [2023-01-27 18:41:52,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 198 transitions, 3482 flow [2023-01-27 18:41:52,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 198 transitions, 3373 flow, removed 11 selfloop flow, removed 4 redundant places. [2023-01-27 18:41:52,432 INFO L231 Difference]: Finished difference. Result has 151 places, 169 transitions, 2918 flow [2023-01-27 18:41:52,432 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} [2023-01-27 18:41:52,433 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 127 predicate places. [2023-01-27 18:41:52,433 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 169 transitions, 2918 flow [2023-01-27 18:41:52,433 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) [2023-01-27 18:41:52,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:52,433 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:52,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-01-27 18:41:52,434 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)] === [2023-01-27 18:41:52,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:52,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1930230487, now seen corresponding path program 1 times [2023-01-27 18:41:52,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:52,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755509445] [2023-01-27 18:41:52,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:52,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:53,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:53,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:53,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755509445] [2023-01-27 18:41:53,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755509445] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:41:53,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:41:53,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:41:53,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156865116] [2023-01-27 18:41:53,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:41:53,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:41:53,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:41:53,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:41:53,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-01-27 18:41:53,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 813 [2023-01-27 18:41:53,383 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) [2023-01-27 18:41:53,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:41:53,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 813 [2023-01-27 18:41:53,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:41:54,068 INFO L130 PetriNetUnfolder]: 628/1160 cut-off events. [2023-01-27 18:41:54,069 INFO L131 PetriNetUnfolder]: For 15922/15922 co-relation queries the response was YES. [2023-01-27 18:41:54,076 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. [2023-01-27 18:41:54,080 INFO L137 encePairwiseOnDemand]: 804/813 looper letters, 133 selfloop transitions, 62 changer transitions 14/209 dead transitions. [2023-01-27 18:41:54,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 209 transitions, 3800 flow [2023-01-27 18:41:54,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-27 18:41:54,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-27 18:41:54,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2180 transitions. [2023-01-27 18:41:54,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3830609734668775 [2023-01-27 18:41:54,084 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2180 transitions. [2023-01-27 18:41:54,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2180 transitions. [2023-01-27 18:41:54,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:41:54,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2180 transitions. [2023-01-27 18:41:54,087 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) [2023-01-27 18:41:54,090 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) [2023-01-27 18:41:54,091 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) [2023-01-27 18:41:54,091 INFO L175 Difference]: Start difference. First operand has 151 places, 169 transitions, 2918 flow. Second operand 7 states and 2180 transitions. [2023-01-27 18:41:54,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 209 transitions, 3800 flow [2023-01-27 18:41:54,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 209 transitions, 3728 flow, removed 25 selfloop flow, removed 4 redundant places. [2023-01-27 18:41:54,142 INFO L231 Difference]: Finished difference. Result has 157 places, 173 transitions, 3196 flow [2023-01-27 18:41:54,142 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} [2023-01-27 18:41:54,142 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 133 predicate places. [2023-01-27 18:41:54,142 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 173 transitions, 3196 flow [2023-01-27 18:41:54,143 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) [2023-01-27 18:41:54,143 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:41:54,143 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:41:54,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-01-27 18:41:54,143 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)] === [2023-01-27 18:41:54,143 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:41:54,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1269029010, now seen corresponding path program 1 times [2023-01-27 18:41:54,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:41:54,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080119584] [2023-01-27 18:41:54,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:54,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:41:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:54,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:41:54,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:41:54,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080119584] [2023-01-27 18:41:54,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080119584] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:41:54,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805456633] [2023-01-27 18:41:54,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:41:54,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:41:54,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:41:54,816 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) [2023-01-27 18:41:54,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-27 18:41:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:41:55,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 36 conjunts are in the unsatisfiable core [2023-01-27 18:41:55,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:41:56,199 INFO L190 IndexEqualityManager]: detected not equals via solver Received shutdown request... [2023-01-27 18:45:41,422 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 [2023-01-27 18:45:41,436 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 [2023-01-27 18:45:42,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-01-27 18:45:42,481 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 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown