./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a382c3d3f68b2f5ab68f4f645755e252baf0f41b5f6fcd4ac49047e77a0e936 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 10:14:01,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 10:14:01,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 10:14:01,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 10:14:01,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 10:14:01,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 10:14:01,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 10:14:01,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 10:14:01,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 10:14:01,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 10:14:01,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 10:14:01,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 10:14:01,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 10:14:01,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 10:14:01,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 10:14:01,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 10:14:01,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 10:14:01,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 10:14:01,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 10:14:01,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 10:14:01,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 10:14:01,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 10:14:01,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 10:14:01,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 10:14:01,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 10:14:01,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 10:14:01,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 10:14:01,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 10:14:01,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 10:14:01,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 10:14:01,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 10:14:01,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 10:14:01,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 10:14:01,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 10:14:01,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 10:14:01,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 10:14:01,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 10:14:01,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 10:14:01,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 10:14:01,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 10:14:01,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 10:14:01,855 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-09-01 10:14:01,880 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 10:14:01,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 10:14:01,881 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 10:14:01,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 10:14:01,882 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 10:14:01,882 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 10:14:01,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 10:14:01,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 10:14:01,883 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 10:14:01,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 10:14:01,884 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 10:14:01,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 10:14:01,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 10:14:01,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 10:14:01,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 10:14:01,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 10:14:01,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 10:14:01,885 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 10:14:01,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 10:14:01,885 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 10:14:01,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 10:14:01,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 10:14:01,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 10:14:01,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 10:14:01,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:14:01,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 10:14:01,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 10:14:01,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 10:14:01,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 10:14:01,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 10:14:01,887 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 10:14:01,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 10:14:01,887 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 10:14:01,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 10:14:01,887 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 10:14:01,887 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a382c3d3f68b2f5ab68f4f645755e252baf0f41b5f6fcd4ac49047e77a0e936 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 10:14:02,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 10:14:02,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 10:14:02,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 10:14:02,136 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 10:14:02,136 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 10:14:02,137 INFO L432 ainManager$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 [2023-09-01 10:14:03,241 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 10:14:03,610 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 10:14:03,610 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2023-09-01 10:14:03,652 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/716314638/73b5cf8891d14d1b8e8f87b8734f0952/FLAGa8d07a416 [2023-09-01 10:14:03,666 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/716314638/73b5cf8891d14d1b8e8f87b8734f0952 [2023-09-01 10:14:03,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 10:14:03,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 10:14:03,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 10:14:03,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 10:14:03,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 10:14:03,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:14:03" (1/1) ... [2023-09-01 10:14:03,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6120071e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:14:03, skipping insertion in model container [2023-09-01 10:14:03,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:14:03" (1/1) ... [2023-09-01 10:14:03,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 10:14:03,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 10:14:04,010 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] [2023-09-01 10:14:06,220 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-09-01 10:14:06,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:14:06,539 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 10:14:06,549 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] [2023-09-01 10:14:06,716 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-09-01 10:14:06,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:14:07,108 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 10:14:07,109 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 10:14:07,109 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 10:14:07,109 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 10:14:07,109 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 10:14:07,109 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 10:14:07,109 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 10:14:07,114 INFO L208 MainTranslator]: Completed translation [2023-09-01 10:14:07,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:14:07 WrapperNode [2023-09-01 10:14:07,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 10:14:07,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 10:14:07,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 10:14:07,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 10:14:07,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:14:07" (1/1) ... [2023-09-01 10:14:07,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:14:07" (1/1) ... [2023-09-01 10:14:07,260 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 18, statements flattened = 358 [2023-09-01 10:14:07,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 10:14:07,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 10:14:07,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 10:14:07,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 10:14:07,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:14:07" (1/1) ... [2023-09-01 10:14:07,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:14:07" (1/1) ... [2023-09-01 10:14:07,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:14:07" (1/1) ... [2023-09-01 10:14:07,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:14:07" (1/1) ... [2023-09-01 10:14:07,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:14:07" (1/1) ... [2023-09-01 10:14:07,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:14:07" (1/1) ... [2023-09-01 10:14:07,294 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:14:07" (1/1) ... [2023-09-01 10:14:07,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:14:07" (1/1) ... [2023-09-01 10:14:07,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 10:14:07,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 10:14:07,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 10:14:07,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 10:14:07,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:14:07" (1/1) ... [2023-09-01 10:14:07,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:14:07,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 10:14:07,356 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) [2023-09-01 10:14:07,370 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 [2023-09-01 10:14:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 10:14:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-01 10:14:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 10:14:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 10:14:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 10:14:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-09-01 10:14:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 10:14:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 10:14:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2023-09-01 10:14:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2023-09-01 10:14:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 10:14:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-09-01 10:14:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2023-09-01 10:14:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2023-09-01 10:14:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 10:14:07,401 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 10:14:07,772 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 10:14:07,773 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 10:14:08,084 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 10:14:08,098 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 10:14:08,098 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-09-01 10:14:08,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:14:08 BoogieIcfgContainer [2023-09-01 10:14:08,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 10:14:08,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 10:14:08,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 10:14:08,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 10:14:08,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 10:14:03" (1/3) ... [2023-09-01 10:14:08,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3925fc88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:14:08, skipping insertion in model container [2023-09-01 10:14:08,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:14:07" (2/3) ... [2023-09-01 10:14:08,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3925fc88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:14:08, skipping insertion in model container [2023-09-01 10:14:08,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:14:08" (3/3) ... [2023-09-01 10:14:08,107 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2023-09-01 10:14:08,113 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 10:14:08,119 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 10:14:08,119 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-09-01 10:14:08,119 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 10:14:08,210 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-01 10:14:08,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 379 places, 387 transitions, 790 flow [2023-09-01 10:14:08,342 INFO L130 PetriNetUnfolder]: 15/385 cut-off events. [2023-09-01 10:14:08,342 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 10:14:08,350 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. [2023-09-01 10:14:08,350 INFO L82 GeneralOperation]: Start removeDead. Operand has 379 places, 387 transitions, 790 flow [2023-09-01 10:14:08,356 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 377 transitions, 763 flow [2023-09-01 10:14:08,358 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 10:14:08,365 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 369 places, 377 transitions, 763 flow [2023-09-01 10:14:08,368 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 369 places, 377 transitions, 763 flow [2023-09-01 10:14:08,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 377 transitions, 763 flow [2023-09-01 10:14:08,430 INFO L130 PetriNetUnfolder]: 15/377 cut-off events. [2023-09-01 10:14:08,430 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 10:14:08,434 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. [2023-09-01 10:14:08,440 INFO L119 LiptonReduction]: Number of co-enabled transitions 19092 [2023-09-01 10:15:07,183 WARN L222 SmtUtils]: Spent 15.52s 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) [2023-09-01 10:15:15,826 WARN L222 SmtUtils]: Spent 8.63s 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) [2023-09-01 10:15:37,176 WARN L222 SmtUtils]: Spent 21.35s 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) [2023-09-01 10:15:51,829 WARN L222 SmtUtils]: Spent 14.64s 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) [2023-09-01 10:17:29,747 WARN L222 SmtUtils]: Spent 1.63m 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) [2023-09-01 10:18:19,937 WARN L222 SmtUtils]: Spent 50.18s 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) [2023-09-01 10:19:52,058 WARN L222 SmtUtils]: Spent 1.54m 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) [2023-09-01 10:20:32,457 WARN L222 SmtUtils]: Spent 40.39s 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) [2023-09-01 10:20:32,465 INFO L134 LiptonReduction]: Checked pairs total: 17926 [2023-09-01 10:20:32,466 INFO L136 LiptonReduction]: Total number of compositions: 426 [2023-09-01 10:20:32,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 10:20:32,485 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=true, 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;@13028fc0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 10:20:32,485 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-09-01 10:20:32,496 INFO L130 PetriNetUnfolder]: 5/17 cut-off events. [2023-09-01 10:20:32,496 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 10:20:32,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:20:32,497 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 10:20:32,497 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)] === [2023-09-01 10:20:32,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:20:32,502 INFO L85 PathProgramCache]: Analyzing trace with hash 613609338, now seen corresponding path program 1 times [2023-09-01 10:20:32,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:20:32,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273384480] [2023-09-01 10:20:32,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:20:32,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:20:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:20:33,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:20:33,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:20:33,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273384480] [2023-09-01 10:20:33,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273384480] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:20:33,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:20:33,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 10:20:33,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471464977] [2023-09-01 10:20:33,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:20:33,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 10:20:33,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:20:33,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 10:20:33,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 10:20:33,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 813 [2023-09-01 10:20:33,338 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 23 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 364.0) internal successors, (1092), 3 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:33,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:20:33,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 813 [2023-09-01 10:20:33,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:20:33,594 INFO L130 PetriNetUnfolder]: 237/372 cut-off events. [2023-09-01 10:20:33,594 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2023-09-01 10:20:33,595 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. [2023-09-01 10:20:33,597 INFO L137 encePairwiseOnDemand]: 808/813 looper letters, 30 selfloop transitions, 4 changer transitions 3/37 dead transitions. [2023-09-01 10:20:33,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 37 transitions, 163 flow [2023-09-01 10:20:33,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 10:20:33,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 10:20:33,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1124 transitions. [2023-09-01 10:20:33,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46084460844608444 [2023-09-01 10:20:33,615 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1124 transitions. [2023-09-01 10:20:33,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1124 transitions. [2023-09-01 10:20:33,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:20:33,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1124 transitions. [2023-09-01 10:20:33,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.6666666666667) internal successors, (1124), 3 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:33,634 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) [2023-09-01 10:20:33,635 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) [2023-09-01 10:20:33,636 INFO L175 Difference]: Start difference. First operand has 24 places, 23 transitions, 55 flow. Second operand 3 states and 1124 transitions. [2023-09-01 10:20:33,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 37 transitions, 163 flow [2023-09-01 10:20:33,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 37 transitions, 155 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 10:20:33,641 INFO L231 Difference]: Finished difference. Result has 25 places, 26 transitions, 80 flow [2023-09-01 10:20:33,643 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} [2023-09-01 10:20:33,648 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2023-09-01 10:20:33,648 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 26 transitions, 80 flow [2023-09-01 10:20:33,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 364.0) internal successors, (1092), 3 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:33,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:20:33,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:20:33,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 10:20:33,650 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)] === [2023-09-01 10:20:33,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:20:33,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1842022213, now seen corresponding path program 1 times [2023-09-01 10:20:33,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:20:33,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689644114] [2023-09-01 10:20:33,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:20:33,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:20:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:20:34,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:20:34,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:20:34,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689644114] [2023-09-01 10:20:34,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689644114] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:20:34,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:20:34,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 10:20:34,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154582789] [2023-09-01 10:20:34,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:20:34,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 10:20:34,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:20:34,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 10:20:34,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-09-01 10:20:34,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 813 [2023-09-01 10:20:34,658 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 26 transitions, 80 flow. Second operand has 6 states, 6 states have (on average 358.1666666666667) internal successors, (2149), 6 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:34,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:20:34,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 813 [2023-09-01 10:20:34,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:20:34,980 INFO L130 PetriNetUnfolder]: 242/389 cut-off events. [2023-09-01 10:20:34,980 INFO L131 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2023-09-01 10:20:34,980 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. [2023-09-01 10:20:34,981 INFO L137 encePairwiseOnDemand]: 806/813 looper letters, 35 selfloop transitions, 7 changer transitions 8/50 dead transitions. [2023-09-01 10:20:34,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 50 transitions, 243 flow [2023-09-01 10:20:34,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 10:20:34,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 10:20:34,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1834 transitions. [2023-09-01 10:20:34,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45116851168511685 [2023-09-01 10:20:34,986 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1834 transitions. [2023-09-01 10:20:34,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1834 transitions. [2023-09-01 10:20:34,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:20:34,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1834 transitions. [2023-09-01 10:20:34,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 366.8) internal successors, (1834), 5 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:34,994 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) [2023-09-01 10:20:34,995 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) [2023-09-01 10:20:34,996 INFO L175 Difference]: Start difference. First operand has 25 places, 26 transitions, 80 flow. Second operand 5 states and 1834 transitions. [2023-09-01 10:20:34,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 50 transitions, 243 flow [2023-09-01 10:20:34,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 50 transitions, 233 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 10:20:34,998 INFO L231 Difference]: Finished difference. Result has 29 places, 26 transitions, 106 flow [2023-09-01 10:20:34,998 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} [2023-09-01 10:20:34,999 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 5 predicate places. [2023-09-01 10:20:34,999 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 26 transitions, 106 flow [2023-09-01 10:20:35,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 358.1666666666667) internal successors, (2149), 6 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:35,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:20:35,001 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:20:35,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 10:20:35,002 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)] === [2023-09-01 10:20:35,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:20:35,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1596026477, now seen corresponding path program 1 times [2023-09-01 10:20:35,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:20:35,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131055326] [2023-09-01 10:20:35,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:20:35,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:20:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:20:35,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:20:35,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:20:35,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131055326] [2023-09-01 10:20:35,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131055326] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:20:35,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:20:35,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 10:20:35,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261721193] [2023-09-01 10:20:35,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:20:35,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 10:20:35,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:20:35,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 10:20:35,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 10:20:35,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 813 [2023-09-01 10:20:35,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 364.6666666666667) internal successors, (1094), 3 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:35,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:20:35,359 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 813 [2023-09-01 10:20:35,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:20:35,600 INFO L130 PetriNetUnfolder]: 177/314 cut-off events. [2023-09-01 10:20:35,600 INFO L131 PetriNetUnfolder]: For 200/200 co-relation queries the response was YES. [2023-09-01 10:20:35,601 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. [2023-09-01 10:20:35,601 INFO L137 encePairwiseOnDemand]: 809/813 looper letters, 23 selfloop transitions, 4 changer transitions 10/37 dead transitions. [2023-09-01 10:20:35,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 37 transitions, 217 flow [2023-09-01 10:20:35,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 10:20:35,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 10:20:35,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1119 transitions. [2023-09-01 10:20:35,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45879458794587946 [2023-09-01 10:20:35,605 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1119 transitions. [2023-09-01 10:20:35,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1119 transitions. [2023-09-01 10:20:35,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:20:35,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1119 transitions. [2023-09-01 10:20:35,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 373.0) internal successors, (1119), 3 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:35,611 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) [2023-09-01 10:20:35,613 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) [2023-09-01 10:20:35,613 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 106 flow. Second operand 3 states and 1119 transitions. [2023-09-01 10:20:35,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 37 transitions, 217 flow [2023-09-01 10:20:35,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 211 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 10:20:35,615 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 112 flow [2023-09-01 10:20:35,615 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} [2023-09-01 10:20:35,616 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 7 predicate places. [2023-09-01 10:20:35,616 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 112 flow [2023-09-01 10:20:35,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 364.6666666666667) internal successors, (1094), 3 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:35,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:20:35,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:20:35,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 10:20:35,617 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)] === [2023-09-01 10:20:35,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:20:35,618 INFO L85 PathProgramCache]: Analyzing trace with hash -629217462, now seen corresponding path program 1 times [2023-09-01 10:20:35,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:20:35,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646693569] [2023-09-01 10:20:35,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:20:35,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:20:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:20:37,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:20:37,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:20:37,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646693569] [2023-09-01 10:20:37,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646693569] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:20:37,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:20:37,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 10:20:37,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977389934] [2023-09-01 10:20:37,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:20:37,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 10:20:37,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:20:37,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 10:20:37,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-09-01 10:20:37,818 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 813 [2023-09-01 10:20:37,820 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 112 flow. Second operand has 7 states, 7 states have (on average 356.57142857142856) internal successors, (2496), 7 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:37,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:20:37,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 813 [2023-09-01 10:20:37,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:20:38,400 INFO L130 PetriNetUnfolder]: 196/389 cut-off events. [2023-09-01 10:20:38,401 INFO L131 PetriNetUnfolder]: For 517/517 co-relation queries the response was YES. [2023-09-01 10:20:38,401 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. [2023-09-01 10:20:38,402 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 43 selfloop transitions, 12 changer transitions 10/65 dead transitions. [2023-09-01 10:20:38,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 65 transitions, 406 flow [2023-09-01 10:20:38,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 10:20:38,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 10:20:38,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2548 transitions. [2023-09-01 10:20:38,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44772447724477243 [2023-09-01 10:20:38,407 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2548 transitions. [2023-09-01 10:20:38,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2548 transitions. [2023-09-01 10:20:38,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:20:38,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2548 transitions. [2023-09-01 10:20:38,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 364.0) internal successors, (2548), 7 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:38,417 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) [2023-09-01 10:20:38,419 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) [2023-09-01 10:20:38,419 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 112 flow. Second operand 7 states and 2548 transitions. [2023-09-01 10:20:38,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 65 transitions, 406 flow [2023-09-01 10:20:38,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 65 transitions, 370 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 10:20:38,424 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 166 flow [2023-09-01 10:20:38,424 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} [2023-09-01 10:20:38,425 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 11 predicate places. [2023-09-01 10:20:38,425 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 166 flow [2023-09-01 10:20:38,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 356.57142857142856) internal successors, (2496), 7 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:38,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:20:38,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:20:38,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 10:20:38,427 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)] === [2023-09-01 10:20:38,427 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:20:38,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1713199274, now seen corresponding path program 2 times [2023-09-01 10:20:38,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:20:38,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142084756] [2023-09-01 10:20:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:20:38,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:20:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:20:42,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:20:42,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:20:42,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142084756] [2023-09-01 10:20:42,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142084756] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:20:42,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:20:42,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 10:20:42,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64011412] [2023-09-01 10:20:42,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:20:42,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 10:20:42,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:20:42,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 10:20:42,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-09-01 10:20:42,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 345 out of 813 [2023-09-01 10:20:42,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 166 flow. Second operand has 8 states, 8 states have (on average 346.375) internal successors, (2771), 8 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:42,977 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:20:42,977 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 345 of 813 [2023-09-01 10:20:42,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:20:43,971 INFO L130 PetriNetUnfolder]: 273/520 cut-off events. [2023-09-01 10:20:43,971 INFO L131 PetriNetUnfolder]: For 653/653 co-relation queries the response was YES. [2023-09-01 10:20:43,972 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. [2023-09-01 10:20:43,974 INFO L137 encePairwiseOnDemand]: 801/813 looper letters, 34 selfloop transitions, 31 changer transitions 18/83 dead transitions. [2023-09-01 10:20:43,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 83 transitions, 560 flow [2023-09-01 10:20:43,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 10:20:43,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 10:20:43,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3869 transitions. [2023-09-01 10:20:43,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43262887174326287 [2023-09-01 10:20:43,983 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3869 transitions. [2023-09-01 10:20:43,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3869 transitions. [2023-09-01 10:20:43,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:20:43,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3869 transitions. [2023-09-01 10:20:43,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 351.72727272727275) internal successors, (3869), 11 states have internal predecessors, (3869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:44,002 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) [2023-09-01 10:20:44,003 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) [2023-09-01 10:20:44,004 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 166 flow. Second operand 11 states and 3869 transitions. [2023-09-01 10:20:44,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 83 transitions, 560 flow [2023-09-01 10:20:44,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 83 transitions, 556 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-09-01 10:20:44,008 INFO L231 Difference]: Finished difference. Result has 52 places, 51 transitions, 410 flow [2023-09-01 10:20:44,008 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} [2023-09-01 10:20:44,010 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 28 predicate places. [2023-09-01 10:20:44,010 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 51 transitions, 410 flow [2023-09-01 10:20:44,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 346.375) internal successors, (2771), 8 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:44,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:20:44,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:20:44,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 10:20:44,012 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)] === [2023-09-01 10:20:44,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:20:44,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1932884782, now seen corresponding path program 1 times [2023-09-01 10:20:44,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:20:44,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923610403] [2023-09-01 10:20:44,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:20:44,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:20:44,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:20:45,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:20:45,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:20:45,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923610403] [2023-09-01 10:20:45,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923610403] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:20:45,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:20:45,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 10:20:45,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065499848] [2023-09-01 10:20:45,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:20:45,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 10:20:45,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:20:45,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 10:20:45,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-09-01 10:20:46,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 347 out of 813 [2023-09-01 10:20:46,381 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 51 transitions, 410 flow. Second operand has 8 states, 8 states have (on average 348.375) internal successors, (2787), 8 states have internal predecessors, (2787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:46,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:20:46,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 347 of 813 [2023-09-01 10:20:46,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:20:46,904 INFO L130 PetriNetUnfolder]: 273/516 cut-off events. [2023-09-01 10:20:46,904 INFO L131 PetriNetUnfolder]: For 1020/1020 co-relation queries the response was YES. [2023-09-01 10:20:46,905 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. [2023-09-01 10:20:46,907 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 47 selfloop transitions, 17 changer transitions 11/75 dead transitions. [2023-09-01 10:20:46,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 75 transitions, 665 flow [2023-09-01 10:20:46,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 10:20:46,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 10:20:46,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2474 transitions. [2023-09-01 10:20:46,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4347214900720436 [2023-09-01 10:20:46,929 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2474 transitions. [2023-09-01 10:20:46,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2474 transitions. [2023-09-01 10:20:46,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:20:46,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2474 transitions. [2023-09-01 10:20:46,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 353.42857142857144) internal successors, (2474), 7 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:46,939 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) [2023-09-01 10:20:46,941 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) [2023-09-01 10:20:46,943 INFO L175 Difference]: Start difference. First operand has 52 places, 51 transitions, 410 flow. Second operand 7 states and 2474 transitions. [2023-09-01 10:20:46,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 75 transitions, 665 flow [2023-09-01 10:20:46,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 75 transitions, 624 flow, removed 20 selfloop flow, removed 1 redundant places. [2023-09-01 10:20:46,951 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 443 flow [2023-09-01 10:20:46,951 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} [2023-09-01 10:20:46,952 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 36 predicate places. [2023-09-01 10:20:46,953 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 443 flow [2023-09-01 10:20:46,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 348.375) internal successors, (2787), 8 states have internal predecessors, (2787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:46,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:20:46,954 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:20:46,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 10:20:46,955 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)] === [2023-09-01 10:20:46,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:20:46,955 INFO L85 PathProgramCache]: Analyzing trace with hash -624922700, now seen corresponding path program 2 times [2023-09-01 10:20:46,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:20:46,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33269309] [2023-09-01 10:20:46,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:20:46,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:20:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:20:48,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:20:48,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:20:48,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33269309] [2023-09-01 10:20:48,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33269309] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:20:48,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:20:48,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 10:20:48,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665597192] [2023-09-01 10:20:48,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:20:48,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 10:20:48,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:20:48,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 10:20:48,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-09-01 10:20:49,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 350 out of 813 [2023-09-01 10:20:49,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 443 flow. Second operand has 7 states, 7 states have (on average 351.57142857142856) internal successors, (2461), 7 states have internal predecessors, (2461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:49,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:20:49,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 350 of 813 [2023-09-01 10:20:49,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:20:50,113 INFO L130 PetriNetUnfolder]: 367/661 cut-off events. [2023-09-01 10:20:50,114 INFO L131 PetriNetUnfolder]: For 2497/2497 co-relation queries the response was YES. [2023-09-01 10:20:50,115 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. [2023-09-01 10:20:50,117 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 55 selfloop transitions, 42 changer transitions 10/107 dead transitions. [2023-09-01 10:20:50,117 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 107 transitions, 1019 flow [2023-09-01 10:20:50,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 10:20:50,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 10:20:50,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3569 transitions. [2023-09-01 10:20:50,124 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43899138991389913 [2023-09-01 10:20:50,124 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3569 transitions. [2023-09-01 10:20:50,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3569 transitions. [2023-09-01 10:20:50,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:20:50,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3569 transitions. [2023-09-01 10:20:50,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 356.9) internal successors, (3569), 10 states have internal predecessors, (3569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:50,136 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) [2023-09-01 10:20:50,137 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) [2023-09-01 10:20:50,138 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 443 flow. Second operand 10 states and 3569 transitions. [2023-09-01 10:20:50,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 107 transitions, 1019 flow [2023-09-01 10:20:50,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 107 transitions, 980 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-09-01 10:20:50,149 INFO L231 Difference]: Finished difference. Result has 71 places, 79 transitions, 797 flow [2023-09-01 10:20:50,150 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} [2023-09-01 10:20:50,150 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 47 predicate places. [2023-09-01 10:20:50,150 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 79 transitions, 797 flow [2023-09-01 10:20:50,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 351.57142857142856) internal successors, (2461), 7 states have internal predecessors, (2461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:50,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:20:50,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:20:50,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 10:20:50,152 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)] === [2023-09-01 10:20:50,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:20:50,153 INFO L85 PathProgramCache]: Analyzing trace with hash 808012148, now seen corresponding path program 3 times [2023-09-01 10:20:50,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:20:50,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081979344] [2023-09-01 10:20:50,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:20:50,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:20:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:20:52,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:20:52,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:20:52,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081979344] [2023-09-01 10:20:52,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081979344] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:20:52,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:20:52,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 10:20:52,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317722961] [2023-09-01 10:20:52,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:20:52,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 10:20:52,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:20:52,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 10:20:52,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-09-01 10:20:52,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 813 [2023-09-01 10:20:52,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 79 transitions, 797 flow. Second operand has 7 states, 7 states have (on average 353.57142857142856) internal successors, (2475), 7 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) [2023-09-01 10:20:52,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:20:52,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 813 [2023-09-01 10:20:52,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:20:53,025 INFO L130 PetriNetUnfolder]: 384/690 cut-off events. [2023-09-01 10:20:53,025 INFO L131 PetriNetUnfolder]: For 2839/2839 co-relation queries the response was YES. [2023-09-01 10:20:53,028 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. [2023-09-01 10:20:53,030 INFO L137 encePairwiseOnDemand]: 803/813 looper letters, 71 selfloop transitions, 36 changer transitions 12/119 dead transitions. [2023-09-01 10:20:53,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 119 transitions, 1329 flow [2023-09-01 10:20:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 10:20:53,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 10:20:53,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3230 transitions. [2023-09-01 10:20:53,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44143774771081046 [2023-09-01 10:20:53,037 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3230 transitions. [2023-09-01 10:20:53,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3230 transitions. [2023-09-01 10:20:53,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:20:53,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3230 transitions. [2023-09-01 10:20:53,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 358.8888888888889) internal successors, (3230), 9 states have internal predecessors, (3230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:53,048 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) [2023-09-01 10:20:53,049 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) [2023-09-01 10:20:53,050 INFO L175 Difference]: Start difference. First operand has 71 places, 79 transitions, 797 flow. Second operand 9 states and 3230 transitions. [2023-09-01 10:20:53,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 119 transitions, 1329 flow [2023-09-01 10:20:53,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 119 transitions, 1177 flow, removed 52 selfloop flow, removed 4 redundant places. [2023-09-01 10:20:53,061 INFO L231 Difference]: Finished difference. Result has 80 places, 92 transitions, 940 flow [2023-09-01 10:20:53,062 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} [2023-09-01 10:20:53,063 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 56 predicate places. [2023-09-01 10:20:53,063 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 92 transitions, 940 flow [2023-09-01 10:20:53,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 353.57142857142856) internal successors, (2475), 7 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) [2023-09-01 10:20:53,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:20:53,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:20:53,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 10:20:53,065 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)] === [2023-09-01 10:20:53,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:20:53,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1869477730, now seen corresponding path program 4 times [2023-09-01 10:20:53,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:20:53,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658674388] [2023-09-01 10:20:53,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:20:53,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:20:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:20:54,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:20:54,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:20:54,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658674388] [2023-09-01 10:20:54,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658674388] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:20:54,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:20:54,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 10:20:54,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100953227] [2023-09-01 10:20:54,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:20:54,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 10:20:54,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:20:54,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 10:20:54,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-09-01 10:20:55,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 813 [2023-09-01 10:20:55,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 92 transitions, 940 flow. Second operand has 7 states, 7 states have (on average 353.57142857142856) internal successors, (2475), 7 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) [2023-09-01 10:20:55,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:20:55,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 813 [2023-09-01 10:20:55,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:20:55,945 INFO L130 PetriNetUnfolder]: 411/735 cut-off events. [2023-09-01 10:20:55,945 INFO L131 PetriNetUnfolder]: For 3419/3419 co-relation queries the response was YES. [2023-09-01 10:20:55,947 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. [2023-09-01 10:20:55,950 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 76 selfloop transitions, 52 changer transitions 19/147 dead transitions. [2023-09-01 10:20:55,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 147 transitions, 1612 flow [2023-09-01 10:20:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 10:20:55,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 10:20:55,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3592 transitions. [2023-09-01 10:20:55,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44182041820418205 [2023-09-01 10:20:55,958 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3592 transitions. [2023-09-01 10:20:55,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3592 transitions. [2023-09-01 10:20:55,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:20:55,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3592 transitions. [2023-09-01 10:20:55,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 359.2) internal successors, (3592), 10 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:55,971 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) [2023-09-01 10:20:55,972 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) [2023-09-01 10:20:55,972 INFO L175 Difference]: Start difference. First operand has 80 places, 92 transitions, 940 flow. Second operand 10 states and 3592 transitions. [2023-09-01 10:20:55,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 147 transitions, 1612 flow [2023-09-01 10:20:55,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 147 transitions, 1590 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-09-01 10:20:55,986 INFO L231 Difference]: Finished difference. Result has 91 places, 109 transitions, 1275 flow [2023-09-01 10:20:55,986 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} [2023-09-01 10:20:55,987 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 67 predicate places. [2023-09-01 10:20:55,987 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 109 transitions, 1275 flow [2023-09-01 10:20:55,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 353.57142857142856) internal successors, (2475), 7 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) [2023-09-01 10:20:55,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:20:55,988 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:20:55,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 10:20:55,989 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)] === [2023-09-01 10:20:55,989 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:20:55,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1770099818, now seen corresponding path program 5 times [2023-09-01 10:20:55,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:20:55,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075507127] [2023-09-01 10:20:55,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:20:55,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:20:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:20:57,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:20:57,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:20:57,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075507127] [2023-09-01 10:20:57,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075507127] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:20:57,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:20:57,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 10:20:57,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556004813] [2023-09-01 10:20:57,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:20:57,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 10:20:57,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:20:57,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 10:20:57,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-09-01 10:20:58,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 813 [2023-09-01 10:20:58,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 109 transitions, 1275 flow. Second operand has 7 states, 7 states have (on average 353.57142857142856) internal successors, (2475), 7 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) [2023-09-01 10:20:58,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:20:58,410 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 813 [2023-09-01 10:20:58,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:20:59,182 INFO L130 PetriNetUnfolder]: 428/762 cut-off events. [2023-09-01 10:20:59,182 INFO L131 PetriNetUnfolder]: For 4676/4676 co-relation queries the response was YES. [2023-09-01 10:20:59,184 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. [2023-09-01 10:20:59,187 INFO L137 encePairwiseOnDemand]: 803/813 looper letters, 85 selfloop transitions, 51 changer transitions 12/148 dead transitions. [2023-09-01 10:20:59,187 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 148 transitions, 1874 flow [2023-09-01 10:20:59,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 10:20:59,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 10:20:59,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3231 transitions. [2023-09-01 10:20:59,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44157441574415746 [2023-09-01 10:20:59,193 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3231 transitions. [2023-09-01 10:20:59,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3231 transitions. [2023-09-01 10:20:59,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:20:59,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3231 transitions. [2023-09-01 10:20:59,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 359.0) internal successors, (3231), 9 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:20:59,205 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) [2023-09-01 10:20:59,206 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) [2023-09-01 10:20:59,206 INFO L175 Difference]: Start difference. First operand has 91 places, 109 transitions, 1275 flow. Second operand 9 states and 3231 transitions. [2023-09-01 10:20:59,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 148 transitions, 1874 flow [2023-09-01 10:20:59,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 148 transitions, 1824 flow, removed 25 selfloop flow, removed 0 redundant places. [2023-09-01 10:20:59,227 INFO L231 Difference]: Finished difference. Result has 102 places, 122 transitions, 1541 flow [2023-09-01 10:20:59,228 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} [2023-09-01 10:20:59,229 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 78 predicate places. [2023-09-01 10:20:59,229 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 122 transitions, 1541 flow [2023-09-01 10:20:59,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 353.57142857142856) internal successors, (2475), 7 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) [2023-09-01 10:20:59,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:20:59,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:20:59,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 10:20:59,230 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)] === [2023-09-01 10:20:59,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:20:59,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1773501758, now seen corresponding path program 6 times [2023-09-01 10:20:59,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:20:59,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526800093] [2023-09-01 10:20:59,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:20:59,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:20:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:21:00,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:21:00,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:21:00,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526800093] [2023-09-01 10:21:00,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526800093] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:21:00,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:21:00,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 10:21:00,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128881101] [2023-09-01 10:21:00,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:21:00,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 10:21:00,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:21:00,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 10:21:00,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-09-01 10:21:00,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 813 [2023-09-01 10:21:00,363 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 122 transitions, 1541 flow. Second operand has 7 states, 7 states have (on average 356.57142857142856) internal successors, (2496), 7 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:00,363 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:21:00,363 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 813 [2023-09-01 10:21:00,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:21:00,975 INFO L130 PetriNetUnfolder]: 424/750 cut-off events. [2023-09-01 10:21:00,975 INFO L131 PetriNetUnfolder]: For 5593/5593 co-relation queries the response was YES. [2023-09-01 10:21:00,977 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. [2023-09-01 10:21:00,979 INFO L137 encePairwiseOnDemand]: 806/813 looper letters, 115 selfloop transitions, 36 changer transitions 10/161 dead transitions. [2023-09-01 10:21:00,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 161 transitions, 2160 flow [2023-09-01 10:21:00,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 10:21:00,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 10:21:00,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2902 transitions. [2023-09-01 10:21:00,984 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461869618696187 [2023-09-01 10:21:00,984 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2902 transitions. [2023-09-01 10:21:00,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2902 transitions. [2023-09-01 10:21:00,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:21:00,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2902 transitions. [2023-09-01 10:21:00,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 362.75) internal successors, (2902), 8 states have internal predecessors, (2902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:00,994 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) [2023-09-01 10:21:00,995 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) [2023-09-01 10:21:00,995 INFO L175 Difference]: Start difference. First operand has 102 places, 122 transitions, 1541 flow. Second operand 8 states and 2902 transitions. [2023-09-01 10:21:00,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 161 transitions, 2160 flow [2023-09-01 10:21:01,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 161 transitions, 2079 flow, removed 31 selfloop flow, removed 3 redundant places. [2023-09-01 10:21:01,013 INFO L231 Difference]: Finished difference. Result has 108 places, 126 transitions, 1615 flow [2023-09-01 10:21:01,013 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} [2023-09-01 10:21:01,013 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 84 predicate places. [2023-09-01 10:21:01,013 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 126 transitions, 1615 flow [2023-09-01 10:21:01,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 356.57142857142856) internal successors, (2496), 7 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:01,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:21:01,014 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:21:01,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 10:21:01,014 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)] === [2023-09-01 10:21:01,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:21:01,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1717495852, now seen corresponding path program 7 times [2023-09-01 10:21:01,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:21:01,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16171335] [2023-09-01 10:21:01,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:21:01,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:21:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:21:01,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:21:01,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:21:01,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16171335] [2023-09-01 10:21:01,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16171335] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:21:01,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:21:01,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 10:21:01,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92618960] [2023-09-01 10:21:01,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:21:01,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 10:21:01,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:21:01,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 10:21:01,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-09-01 10:21:02,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 813 [2023-09-01 10:21:02,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 126 transitions, 1615 flow. Second operand has 7 states, 7 states have (on average 356.57142857142856) internal successors, (2496), 7 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:02,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:21:02,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 813 [2023-09-01 10:21:02,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:21:02,469 INFO L130 PetriNetUnfolder]: 428/758 cut-off events. [2023-09-01 10:21:02,469 INFO L131 PetriNetUnfolder]: For 6489/6489 co-relation queries the response was YES. [2023-09-01 10:21:02,471 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. [2023-09-01 10:21:02,473 INFO L137 encePairwiseOnDemand]: 806/813 looper letters, 114 selfloop transitions, 38 changer transitions 12/164 dead transitions. [2023-09-01 10:21:02,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 164 transitions, 2245 flow [2023-09-01 10:21:02,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 10:21:02,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 10:21:02,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2546 transitions. [2023-09-01 10:21:02,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44737304515902304 [2023-09-01 10:21:02,477 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2546 transitions. [2023-09-01 10:21:02,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2546 transitions. [2023-09-01 10:21:02,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:21:02,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2546 transitions. [2023-09-01 10:21:02,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 363.7142857142857) internal successors, (2546), 7 states have internal predecessors, (2546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:02,489 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) [2023-09-01 10:21:02,490 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) [2023-09-01 10:21:02,490 INFO L175 Difference]: Start difference. First operand has 108 places, 126 transitions, 1615 flow. Second operand 7 states and 2546 transitions. [2023-09-01 10:21:02,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 164 transitions, 2245 flow [2023-09-01 10:21:02,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 164 transitions, 2213 flow, removed 12 selfloop flow, removed 2 redundant places. [2023-09-01 10:21:02,513 INFO L231 Difference]: Finished difference. Result has 114 places, 128 transitions, 1713 flow [2023-09-01 10:21:02,514 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} [2023-09-01 10:21:02,514 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 90 predicate places. [2023-09-01 10:21:02,515 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 128 transitions, 1713 flow [2023-09-01 10:21:02,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 356.57142857142856) internal successors, (2496), 7 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:02,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:21:02,515 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:21:02,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-09-01 10:21:02,515 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)] === [2023-09-01 10:21:02,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:21:02,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1973792680, now seen corresponding path program 8 times [2023-09-01 10:21:02,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:21:02,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010058732] [2023-09-01 10:21:02,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:21:02,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:21:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:21:04,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:21:04,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:21:04,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010058732] [2023-09-01 10:21:04,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010058732] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:21:04,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:21:04,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 10:21:04,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816600158] [2023-09-01 10:21:04,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:21:04,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 10:21:04,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:21:04,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 10:21:04,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-09-01 10:21:04,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 813 [2023-09-01 10:21:04,404 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 128 transitions, 1713 flow. Second operand has 7 states, 7 states have (on average 354.57142857142856) internal successors, (2482), 7 states have internal predecessors, (2482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:04,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:21:04,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 813 [2023-09-01 10:21:04,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:21:05,100 INFO L130 PetriNetUnfolder]: 472/833 cut-off events. [2023-09-01 10:21:05,101 INFO L131 PetriNetUnfolder]: For 8758/8758 co-relation queries the response was YES. [2023-09-01 10:21:05,103 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. [2023-09-01 10:21:05,107 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 68 selfloop transitions, 91 changer transitions 10/169 dead transitions. [2023-09-01 10:21:05,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 169 transitions, 2444 flow [2023-09-01 10:21:05,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 10:21:05,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 10:21:05,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3597 transitions. [2023-09-01 10:21:05,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44243542435424354 [2023-09-01 10:21:05,112 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3597 transitions. [2023-09-01 10:21:05,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3597 transitions. [2023-09-01 10:21:05,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:21:05,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3597 transitions. [2023-09-01 10:21:05,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 359.7) internal successors, (3597), 10 states have internal predecessors, (3597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:05,121 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) [2023-09-01 10:21:05,122 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) [2023-09-01 10:21:05,122 INFO L175 Difference]: Start difference. First operand has 114 places, 128 transitions, 1713 flow. Second operand 10 states and 3597 transitions. [2023-09-01 10:21:05,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 169 transitions, 2444 flow [2023-09-01 10:21:05,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 169 transitions, 2382 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-09-01 10:21:05,149 INFO L231 Difference]: Finished difference. Result has 124 places, 142 transitions, 2164 flow [2023-09-01 10:21:05,149 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} [2023-09-01 10:21:05,150 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 100 predicate places. [2023-09-01 10:21:05,150 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 142 transitions, 2164 flow [2023-09-01 10:21:05,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 354.57142857142856) internal successors, (2482), 7 states have internal predecessors, (2482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:05,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:21:05,150 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:21:05,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-09-01 10:21:05,151 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)] === [2023-09-01 10:21:05,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:21:05,151 INFO L85 PathProgramCache]: Analyzing trace with hash -390220190, now seen corresponding path program 3 times [2023-09-01 10:21:05,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:21:05,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709541645] [2023-09-01 10:21:05,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:21:05,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:21:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:21:07,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:21:07,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:21:07,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709541645] [2023-09-01 10:21:07,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709541645] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:21:07,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:21:07,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-09-01 10:21:07,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654064738] [2023-09-01 10:21:07,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:21:07,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-01 10:21:07,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:21:07,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-01 10:21:07,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-09-01 10:21:08,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 345 out of 813 [2023-09-01 10:21:08,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 142 transitions, 2164 flow. Second operand has 9 states, 9 states have (on average 346.22222222222223) internal successors, (3116), 9 states have internal predecessors, (3116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:08,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:21:08,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 345 of 813 [2023-09-01 10:21:08,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:21:09,328 INFO L130 PetriNetUnfolder]: 462/811 cut-off events. [2023-09-01 10:21:09,328 INFO L131 PetriNetUnfolder]: For 8996/8996 co-relation queries the response was YES. [2023-09-01 10:21:09,331 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. [2023-09-01 10:21:09,334 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 115 selfloop transitions, 40 changer transitions 10/165 dead transitions. [2023-09-01 10:21:09,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 165 transitions, 2625 flow [2023-09-01 10:21:09,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 10:21:09,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 10:21:09,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2463 transitions. [2023-09-01 10:21:09,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4327886136004217 [2023-09-01 10:21:09,338 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2463 transitions. [2023-09-01 10:21:09,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2463 transitions. [2023-09-01 10:21:09,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:21:09,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2463 transitions. [2023-09-01 10:21:09,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 351.85714285714283) internal successors, (2463), 7 states have internal predecessors, (2463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:09,344 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) [2023-09-01 10:21:09,344 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) [2023-09-01 10:21:09,344 INFO L175 Difference]: Start difference. First operand has 124 places, 142 transitions, 2164 flow. Second operand 7 states and 2463 transitions. [2023-09-01 10:21:09,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 165 transitions, 2625 flow [2023-09-01 10:21:09,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 165 transitions, 2493 flow, removed 42 selfloop flow, removed 5 redundant places. [2023-09-01 10:21:09,372 INFO L231 Difference]: Finished difference. Result has 128 places, 144 transitions, 2186 flow [2023-09-01 10:21:09,373 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} [2023-09-01 10:21:09,374 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 104 predicate places. [2023-09-01 10:21:09,374 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 144 transitions, 2186 flow [2023-09-01 10:21:09,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 346.22222222222223) internal successors, (3116), 9 states have internal predecessors, (3116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:09,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:21:09,374 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:21:09,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-09-01 10:21:09,375 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)] === [2023-09-01 10:21:09,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:21:09,375 INFO L85 PathProgramCache]: Analyzing trace with hash -633752502, now seen corresponding path program 9 times [2023-09-01 10:21:09,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:21:09,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582968857] [2023-09-01 10:21:09,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:21:09,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:21:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:21:10,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:21:10,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:21:10,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582968857] [2023-09-01 10:21:10,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582968857] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:21:10,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:21:10,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-09-01 10:21:10,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366794912] [2023-09-01 10:21:10,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:21:10,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-01 10:21:10,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:21:10,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-01 10:21:10,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-09-01 10:21:11,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 347 out of 813 [2023-09-01 10:21:11,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 144 transitions, 2186 flow. Second operand has 9 states, 9 states have (on average 348.22222222222223) internal successors, (3134), 9 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:11,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:21:11,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 347 of 813 [2023-09-01 10:21:11,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:21:12,419 INFO L130 PetriNetUnfolder]: 502/882 cut-off events. [2023-09-01 10:21:12,419 INFO L131 PetriNetUnfolder]: For 10787/10787 co-relation queries the response was YES. [2023-09-01 10:21:12,436 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. [2023-09-01 10:21:12,440 INFO L137 encePairwiseOnDemand]: 802/813 looper letters, 75 selfloop transitions, 102 changer transitions 10/187 dead transitions. [2023-09-01 10:21:12,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 187 transitions, 3062 flow [2023-09-01 10:21:12,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 10:21:12,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 10:21:12,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3885 transitions. [2023-09-01 10:21:12,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4344179805434418 [2023-09-01 10:21:12,443 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3885 transitions. [2023-09-01 10:21:12,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3885 transitions. [2023-09-01 10:21:12,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:21:12,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3885 transitions. [2023-09-01 10:21:12,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 353.1818181818182) internal successors, (3885), 11 states have internal predecessors, (3885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:12,451 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) [2023-09-01 10:21:12,452 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) [2023-09-01 10:21:12,452 INFO L175 Difference]: Start difference. First operand has 128 places, 144 transitions, 2186 flow. Second operand 11 states and 3885 transitions. [2023-09-01 10:21:12,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 187 transitions, 3062 flow [2023-09-01 10:21:12,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 187 transitions, 2970 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-09-01 10:21:12,483 INFO L231 Difference]: Finished difference. Result has 138 places, 160 transitions, 2726 flow [2023-09-01 10:21:12,484 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} [2023-09-01 10:21:12,484 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 114 predicate places. [2023-09-01 10:21:12,484 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 160 transitions, 2726 flow [2023-09-01 10:21:12,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 348.22222222222223) internal successors, (3134), 9 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:12,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:21:12,485 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:21:12,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-09-01 10:21:12,485 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)] === [2023-09-01 10:21:12,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:21:12,486 INFO L85 PathProgramCache]: Analyzing trace with hash 802823656, now seen corresponding path program 4 times [2023-09-01 10:21:12,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:21:12,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813708468] [2023-09-01 10:21:12,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:21:12,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:21:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:21:13,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:21:13,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:21:13,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813708468] [2023-09-01 10:21:13,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813708468] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:21:13,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:21:13,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 10:21:13,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157782549] [2023-09-01 10:21:13,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:21:13,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 10:21:13,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:21:13,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 10:21:13,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-09-01 10:21:13,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 813 [2023-09-01 10:21:13,608 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 160 transitions, 2726 flow. Second operand has 7 states, 7 states have (on average 356.57142857142856) internal successors, (2496), 7 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:13,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:21:13,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 813 [2023-09-01 10:21:13,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:21:14,231 INFO L130 PetriNetUnfolder]: 504/878 cut-off events. [2023-09-01 10:21:14,232 INFO L131 PetriNetUnfolder]: For 11097/11097 co-relation queries the response was YES. [2023-09-01 10:21:14,235 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. [2023-09-01 10:21:14,238 INFO L137 encePairwiseOnDemand]: 805/813 looper letters, 142 selfloop transitions, 47 changer transitions 14/203 dead transitions. [2023-09-01 10:21:14,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 203 transitions, 3520 flow [2023-09-01 10:21:14,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 10:21:14,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 10:21:14,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2906 transitions. [2023-09-01 10:21:14,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4468019680196802 [2023-09-01 10:21:14,241 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2906 transitions. [2023-09-01 10:21:14,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2906 transitions. [2023-09-01 10:21:14,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:21:14,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2906 transitions. [2023-09-01 10:21:14,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 363.25) internal successors, (2906), 8 states have internal predecessors, (2906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:14,247 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) [2023-09-01 10:21:14,247 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) [2023-09-01 10:21:14,247 INFO L175 Difference]: Start difference. First operand has 138 places, 160 transitions, 2726 flow. Second operand 8 states and 2906 transitions. [2023-09-01 10:21:14,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 203 transitions, 3520 flow [2023-09-01 10:21:14,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 203 transitions, 3403 flow, removed 56 selfloop flow, removed 3 redundant places. [2023-09-01 10:21:14,282 INFO L231 Difference]: Finished difference. Result has 143 places, 163 transitions, 2778 flow [2023-09-01 10:21:14,282 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} [2023-09-01 10:21:14,282 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 119 predicate places. [2023-09-01 10:21:14,282 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 163 transitions, 2778 flow [2023-09-01 10:21:14,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 356.57142857142856) internal successors, (2496), 7 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:14,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:21:14,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:21:14,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-09-01 10:21:14,283 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)] === [2023-09-01 10:21:14,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:21:14,283 INFO L85 PathProgramCache]: Analyzing trace with hash 807118418, now seen corresponding path program 10 times [2023-09-01 10:21:14,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:21:14,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151791636] [2023-09-01 10:21:14,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:21:14,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:21:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:21:15,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:21:15,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:21:15,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151791636] [2023-09-01 10:21:15,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151791636] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:21:15,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:21:15,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 10:21:15,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456542662] [2023-09-01 10:21:15,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:21:15,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 10:21:15,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:21:15,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 10:21:15,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-09-01 10:21:16,206 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 813 [2023-09-01 10:21:16,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 163 transitions, 2778 flow. Second operand has 7 states, 7 states have (on average 353.57142857142856) internal successors, (2475), 7 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) [2023-09-01 10:21:16,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:21:16,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 813 [2023-09-01 10:21:16,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:21:17,089 INFO L130 PetriNetUnfolder]: 518/914 cut-off events. [2023-09-01 10:21:17,089 INFO L131 PetriNetUnfolder]: For 11940/11940 co-relation queries the response was YES. [2023-09-01 10:21:17,092 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. [2023-09-01 10:21:17,095 INFO L137 encePairwiseOnDemand]: 803/813 looper letters, 125 selfloop transitions, 60 changer transitions 13/198 dead transitions. [2023-09-01 10:21:17,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 198 transitions, 3482 flow [2023-09-01 10:21:17,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 10:21:17,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 10:21:17,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3587 transitions. [2023-09-01 10:21:17,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44120541205412056 [2023-09-01 10:21:17,098 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3587 transitions. [2023-09-01 10:21:17,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3587 transitions. [2023-09-01 10:21:17,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:21:17,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3587 transitions. [2023-09-01 10:21:17,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 358.7) internal successors, (3587), 10 states have internal predecessors, (3587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:17,105 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) [2023-09-01 10:21:17,106 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) [2023-09-01 10:21:17,106 INFO L175 Difference]: Start difference. First operand has 143 places, 163 transitions, 2778 flow. Second operand 10 states and 3587 transitions. [2023-09-01 10:21:17,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 198 transitions, 3482 flow [2023-09-01 10:21:17,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 198 transitions, 3373 flow, removed 11 selfloop flow, removed 4 redundant places. [2023-09-01 10:21:17,139 INFO L231 Difference]: Finished difference. Result has 151 places, 169 transitions, 2918 flow [2023-09-01 10:21:17,139 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} [2023-09-01 10:21:17,139 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 127 predicate places. [2023-09-01 10:21:17,139 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 169 transitions, 2918 flow [2023-09-01 10:21:17,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 353.57142857142856) internal successors, (2475), 7 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) [2023-09-01 10:21:17,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:21:17,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:21:17,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-09-01 10:21:17,140 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)] === [2023-09-01 10:21:17,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:21:17,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1930230487, now seen corresponding path program 1 times [2023-09-01 10:21:17,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:21:17,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820383873] [2023-09-01 10:21:17,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:21:17,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:21:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:21:17,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:21:17,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:21:17,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820383873] [2023-09-01 10:21:17,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820383873] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:21:17,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:21:17,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 10:21:17,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510899680] [2023-09-01 10:21:17,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:21:17,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 10:21:17,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:21:17,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 10:21:17,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-09-01 10:21:18,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 344 out of 813 [2023-09-01 10:21:18,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 169 transitions, 2918 flow. Second operand has 7 states, 7 states have (on average 345.7142857142857) internal successors, (2420), 7 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:18,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:21:18,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 344 of 813 [2023-09-01 10:21:18,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:21:18,981 INFO L130 PetriNetUnfolder]: 628/1160 cut-off events. [2023-09-01 10:21:18,982 INFO L131 PetriNetUnfolder]: For 15922/15922 co-relation queries the response was YES. [2023-09-01 10:21:18,985 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. [2023-09-01 10:21:18,988 INFO L137 encePairwiseOnDemand]: 804/813 looper letters, 133 selfloop transitions, 62 changer transitions 14/209 dead transitions. [2023-09-01 10:21:18,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 209 transitions, 3800 flow [2023-09-01 10:21:18,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 10:21:18,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 10:21:18,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2460 transitions. [2023-09-01 10:21:18,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43226146547179756 [2023-09-01 10:21:18,991 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2460 transitions. [2023-09-01 10:21:18,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2460 transitions. [2023-09-01 10:21:18,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:21:18,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2460 transitions. [2023-09-01 10:21:18,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 351.42857142857144) internal successors, (2460), 7 states have internal predecessors, (2460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:18,996 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) [2023-09-01 10:21:18,996 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) [2023-09-01 10:21:18,996 INFO L175 Difference]: Start difference. First operand has 151 places, 169 transitions, 2918 flow. Second operand 7 states and 2460 transitions. [2023-09-01 10:21:18,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 209 transitions, 3800 flow [2023-09-01 10:21:19,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 209 transitions, 3728 flow, removed 25 selfloop flow, removed 4 redundant places. [2023-09-01 10:21:19,036 INFO L231 Difference]: Finished difference. Result has 157 places, 173 transitions, 3196 flow [2023-09-01 10:21:19,036 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} [2023-09-01 10:21:19,037 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 133 predicate places. [2023-09-01 10:21:19,037 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 173 transitions, 3196 flow [2023-09-01 10:21:19,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 345.7142857142857) internal successors, (2420), 7 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:21:19,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:21:19,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:21:19,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-09-01 10:21:19,038 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)] === [2023-09-01 10:21:19,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:21:19,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1269029010, now seen corresponding path program 1 times [2023-09-01 10:21:19,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:21:19,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035271476] [2023-09-01 10:21:19,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:21:19,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:21:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:21:19,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:21:19,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:21:19,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035271476] [2023-09-01 10:21:19,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035271476] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 10:21:19,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587074332] [2023-09-01 10:21:19,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:21:19,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 10:21:19,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 10:21:19,590 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) [2023-09-01 10:21:19,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-09-01 10:21:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:21:20,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 36 conjunts are in the unsatisfiable core [2023-09-01 10:21:20,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 10:21:20,788 INFO L190 IndexEqualityManager]: detected not equals via solver Killed by 15