./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8ab0bd5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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 --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 f16b4cfe031f645c2fa5eeec572887c79d8e9243727503d849e4b19e0e31cc63 --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 21:36:37,941 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 21:36:37,988 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-13 21:36:37,994 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 21:36:37,994 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 21:36:38,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 21:36:38,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 21:36:38,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 21:36:38,020 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-13 21:36:38,020 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-13 21:36:38,020 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 21:36:38,020 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 21:36:38,021 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 21:36:38,021 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 21:36:38,021 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 21:36:38,022 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 21:36:38,022 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 21:36:38,022 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 21:36:38,022 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 21:36:38,022 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 21:36:38,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 21:36:38,022 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 21:36:38,022 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 21:36:38,022 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 21:36:38,022 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 21:36:38,022 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 21:36:38,023 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 21:36:38,023 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 21:36:38,023 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 21:36:38,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 21:36:38,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-13 21:36:38,023 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 21:36:38,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 21:36:38,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 21:36:38,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 21:36:38,024 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 21:36:38,024 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 21:36:38,024 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 21:36:38,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 21:36:38,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 21:36:38,024 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 21:36:38,024 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 21:36:38,024 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 21:36:38,024 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> f16b4cfe031f645c2fa5eeec572887c79d8e9243727503d849e4b19e0e31cc63 [2025-03-13 21:36:38,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 21:36:38,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 21:36:38,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 21:36:38,233 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 21:36:38,234 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 21:36:38,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2025-03-13 21:36:39,415 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71bcbc1fd/48c9c1d70f18428f9b4c005543f2fa5a/FLAG6b4282776 [2025-03-13 21:36:39,841 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 21:36:39,842 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2025-03-13 21:36:39,880 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71bcbc1fd/48c9c1d70f18428f9b4c005543f2fa5a/FLAG6b4282776 [2025-03-13 21:36:39,992 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71bcbc1fd/48c9c1d70f18428f9b4c005543f2fa5a [2025-03-13 21:36:39,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 21:36:39,995 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 21:36:39,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 21:36:39,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 21:36:39,999 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 21:36:40,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 09:36:39" (1/1) ... [2025-03-13 21:36:40,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14d280fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:36:40, skipping insertion in model container [2025-03-13 21:36:40,000 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 09:36:39" (1/1) ... [2025-03-13 21:36:40,069 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 21:36:40,326 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2025-03-13 21:36:44,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 21:36:44,427 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 21:36:44,438 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2025-03-13 21:36:44,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-03-13 21:36:44,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-03-13 21:36:44,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-03-13 21:36:44,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-03-13 21:36:44,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2025-03-13 21:36:44,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 21:36:44,952 INFO L204 MainTranslator]: Completed translation [2025-03-13 21:36:44,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:36:44 WrapperNode [2025-03-13 21:36:44,954 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 21:36:44,955 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 21:36:44,955 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 21:36:44,955 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 21:36:44,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:36:44" (1/1) ... [2025-03-13 21:36:45,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:36:44" (1/1) ... [2025-03-13 21:36:45,058 INFO L138 Inliner]: procedures = 1354, calls = 1479, calls flagged for inlining = 352, calls inlined = 18, statements flattened = 394 [2025-03-13 21:36:45,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 21:36:45,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 21:36:45,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 21:36:45,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 21:36:45,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:36:44" (1/1) ... [2025-03-13 21:36:45,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:36:44" (1/1) ... [2025-03-13 21:36:45,071 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:36:44" (1/1) ... [2025-03-13 21:36:45,094 INFO L175 MemorySlicer]: Split 52 memory accesses to 7 slices as follows [2, 31, 1, 4, 2, 9, 3]. 60 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 31, 1, 4, 2, 0, 3]. The 3 writes are split as follows [0, 0, 0, 0, 0, 3, 0]. [2025-03-13 21:36:45,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:36:44" (1/1) ... [2025-03-13 21:36:45,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:36:44" (1/1) ... [2025-03-13 21:36:45,106 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:36:44" (1/1) ... [2025-03-13 21:36:45,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:36:44" (1/1) ... [2025-03-13 21:36:45,111 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:36:44" (1/1) ... [2025-03-13 21:36:45,113 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:36:44" (1/1) ... [2025-03-13 21:36:45,117 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 21:36:45,118 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 21:36:45,118 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 21:36:45,118 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 21:36:45,119 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:36:44" (1/1) ... [2025-03-13 21:36:45,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 21:36:45,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 21:36:45,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-13 21:36:45,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-13 21:36:45,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-13 21:36:45,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-13 21:36:45,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-13 21:36:45,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-13 21:36:45,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-13 21:36:45,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-13 21:36:45,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-13 21:36:45,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-13 21:36:45,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 21:36:45,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2025-03-13 21:36:45,170 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-13 21:36:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-13 21:36:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-13 21:36:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-13 21:36:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2025-03-13 21:36:45,171 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2025-03-13 21:36:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-13 21:36:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-13 21:36:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-13 21:36:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-13 21:36:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-13 21:36:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-13 21:36:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-13 21:36:45,172 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 21:36:45,508 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 21:36:45,509 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 21:36:45,642 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6551: havoc access_ok_#t~nondet1065#1; [2025-03-13 21:36:45,642 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6543: havoc __put_user_#t~nondet1063#1; [2025-03-13 21:36:45,642 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6636: havoc nvram_read_byte_#t~nondet1081#1; [2025-03-13 21:36:45,729 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6551: havoc access_ok_#t~nondet1065#1; [2025-03-13 21:36:45,730 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6535: havoc __get_user_#t~nondet1061#1; [2025-03-13 21:36:45,890 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6632: havoc nvram_get_size_#t~nondet1080#1; [2025-03-13 21:36:45,891 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6650: havoc printk_#t~nondet1083#1; [2025-03-13 21:36:45,891 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6624: havoc misc_register_#t~nondet1078#1; [2025-03-13 21:36:45,892 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 21:36:45,892 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 21:36:45,892 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 21:36:46,843 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 21:36:46,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 09:36:46 BoogieIcfgContainer [2025-03-13 21:36:46,844 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 21:36:46,846 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 21:36:46,846 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 21:36:46,849 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 21:36:46,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 09:36:39" (1/3) ... [2025-03-13 21:36:46,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46842981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 09:36:46, skipping insertion in model container [2025-03-13 21:36:46,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:36:44" (2/3) ... [2025-03-13 21:36:46,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46842981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 09:36:46, skipping insertion in model container [2025-03-13 21:36:46,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 09:36:46" (3/3) ... [2025-03-13 21:36:46,854 INFO L128 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2025-03-13 21:36:46,865 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 21:36:46,868 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG char_generic_nvram_read_nvram_write_nvram.i that has 3 procedures, 43 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-03-13 21:36:46,868 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 21:36:46,931 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-13 21:36:46,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 52 transitions, 118 flow [2025-03-13 21:36:46,994 INFO L124 PetriNetUnfolderBase]: 10/50 cut-off events. [2025-03-13 21:36:46,998 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-13 21:36:47,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 50 events. 10/50 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 102 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 47. Up to 4 conditions per place. [2025-03-13 21:36:47,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 52 transitions, 118 flow [2025-03-13 21:36:47,005 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 48 transitions, 105 flow [2025-03-13 21:36:47,010 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 21:36:47,023 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@42b58439, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 21:36:47,023 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-03-13 21:36:47,045 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 21:36:47,046 INFO L124 PetriNetUnfolderBase]: 8/41 cut-off events. [2025-03-13 21:36:47,046 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 21:36:47,046 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:36:47,047 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:36:47,047 INFO L396 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)] === [2025-03-13 21:36:47,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:36:47,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1981130031, now seen corresponding path program 1 times [2025-03-13 21:36:47,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:36:47,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728598117] [2025-03-13 21:36:47,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:36:47,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:36:47,194 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-13 21:36:47,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-13 21:36:47,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:36:47,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:36:48,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:36:48,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:36:48,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728598117] [2025-03-13 21:36:48,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728598117] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:36:48,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:36:48,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-13 21:36:48,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577922518] [2025-03-13 21:36:48,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:36:48,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-13 21:36:48,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:36:48,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-13 21:36:48,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-13 21:36:48,826 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2025-03-13 21:36:48,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 105 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:36:48,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:36:48,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2025-03-13 21:36:48,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:36:49,964 INFO L124 PetriNetUnfolderBase]: 1419/2458 cut-off events. [2025-03-13 21:36:49,965 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2025-03-13 21:36:49,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4689 conditions, 2458 events. 1419/2458 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 12801 event pairs, 240 based on Foata normal form. 113/2294 useless extension candidates. Maximal degree in co-relation 4610. Up to 699 conditions per place. [2025-03-13 21:36:49,978 INFO L140 encePairwiseOnDemand]: 38/52 looper letters, 122 selfloop transitions, 27 changer transitions 19/177 dead transitions. [2025-03-13 21:36:49,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 177 transitions, 714 flow [2025-03-13 21:36:49,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-13 21:36:49,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-13 21:36:49,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 291 transitions. [2025-03-13 21:36:49,992 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5596153846153846 [2025-03-13 21:36:49,993 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 105 flow. Second operand 10 states and 291 transitions. [2025-03-13 21:36:49,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 177 transitions, 714 flow [2025-03-13 21:36:49,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 177 transitions, 704 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-13 21:36:50,002 INFO L231 Difference]: Finished difference. Result has 58 places, 70 transitions, 274 flow [2025-03-13 21:36:50,004 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=274, PETRI_PLACES=58, PETRI_TRANSITIONS=70} [2025-03-13 21:36:50,006 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 13 predicate places. [2025-03-13 21:36:50,007 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 70 transitions, 274 flow [2025-03-13 21:36:50,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:36:50,007 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:36:50,007 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:36:50,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 21:36:50,007 INFO L396 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)] === [2025-03-13 21:36:50,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:36:50,009 INFO L85 PathProgramCache]: Analyzing trace with hash 271426514, now seen corresponding path program 1 times [2025-03-13 21:36:50,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:36:50,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722672478] [2025-03-13 21:36:50,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:36:50,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:36:50,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-13 21:36:50,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-13 21:36:50,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:36:50,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:36:50,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:36:50,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:36:50,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722672478] [2025-03-13 21:36:50,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722672478] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-13 21:36:50,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085176570] [2025-03-13 21:36:50,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:36:50,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 21:36:50,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 21:36:50,760 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) [2025-03-13 21:36:50,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-13 21:36:51,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-13 21:36:51,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-13 21:36:51,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:36:51,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:36:51,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-13 21:36:51,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-13 21:36:51,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-13 21:36:51,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 31 [2025-03-13 21:36:51,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-13 21:36:51,548 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-13 21:36:51,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085176570] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:36:51,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-13 21:36:51,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2025-03-13 21:36:51,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568360118] [2025-03-13 21:36:51,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:36:51,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-13 21:36:51,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:36:51,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-13 21:36:51,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-13 21:36:51,570 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52 [2025-03-13 21:36:51,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 70 transitions, 274 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:36:51,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:36:51,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52 [2025-03-13 21:36:51,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:36:52,104 INFO L124 PetriNetUnfolderBase]: 1376/2472 cut-off events. [2025-03-13 21:36:52,105 INFO L125 PetriNetUnfolderBase]: For 1197/1203 co-relation queries the response was YES. [2025-03-13 21:36:52,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6063 conditions, 2472 events. 1376/2472 cut-off events. For 1197/1203 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 13329 event pairs, 527 based on Foata normal form. 36/2329 useless extension candidates. Maximal degree in co-relation 5850. Up to 1372 conditions per place. [2025-03-13 21:36:52,120 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 85 selfloop transitions, 25 changer transitions 18/140 dead transitions. [2025-03-13 21:36:52,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 140 transitions, 719 flow [2025-03-13 21:36:52,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-13 21:36:52,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-13 21:36:52,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2025-03-13 21:36:52,122 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.521978021978022 [2025-03-13 21:36:52,122 INFO L175 Difference]: Start difference. First operand has 58 places, 70 transitions, 274 flow. Second operand 7 states and 190 transitions. [2025-03-13 21:36:52,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 140 transitions, 719 flow [2025-03-13 21:36:52,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 140 transitions, 719 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 21:36:52,143 INFO L231 Difference]: Finished difference. Result has 69 places, 79 transitions, 448 flow [2025-03-13 21:36:52,143 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=448, PETRI_PLACES=69, PETRI_TRANSITIONS=79} [2025-03-13 21:36:52,144 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 24 predicate places. [2025-03-13 21:36:52,144 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 79 transitions, 448 flow [2025-03-13 21:36:52,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:36:52,144 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:36:52,144 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:36:52,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-13 21:36:52,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 21:36:52,345 INFO L396 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)] === [2025-03-13 21:36:52,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:36:52,346 INFO L85 PathProgramCache]: Analyzing trace with hash 16289508, now seen corresponding path program 1 times [2025-03-13 21:36:52,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:36:52,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311791265] [2025-03-13 21:36:52,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:36:52,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:36:52,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-13 21:36:52,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-13 21:36:52,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:36:52,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:36:52,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:36:52,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:36:52,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311791265] [2025-03-13 21:36:52,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311791265] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:36:52,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:36:52,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 21:36:52,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596901350] [2025-03-13 21:36:52,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:36:52,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-13 21:36:52,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:36:52,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-13 21:36:52,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-13 21:36:52,806 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2025-03-13 21:36:52,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 79 transitions, 448 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:36:52,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:36:52,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2025-03-13 21:36:52,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:36:53,367 INFO L124 PetriNetUnfolderBase]: 1804/3148 cut-off events. [2025-03-13 21:36:53,367 INFO L125 PetriNetUnfolderBase]: For 4768/4810 co-relation queries the response was YES. [2025-03-13 21:36:53,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9332 conditions, 3148 events. 1804/3148 cut-off events. For 4768/4810 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 17495 event pairs, 590 based on Foata normal form. 30/3115 useless extension candidates. Maximal degree in co-relation 9039. Up to 1372 conditions per place. [2025-03-13 21:36:53,381 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 89 selfloop transitions, 23 changer transitions 120/243 dead transitions. [2025-03-13 21:36:53,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 243 transitions, 1938 flow [2025-03-13 21:36:53,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-13 21:36:53,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-13 21:36:53,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 214 transitions. [2025-03-13 21:36:53,385 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5144230769230769 [2025-03-13 21:36:53,385 INFO L175 Difference]: Start difference. First operand has 69 places, 79 transitions, 448 flow. Second operand 8 states and 214 transitions. [2025-03-13 21:36:53,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 243 transitions, 1938 flow [2025-03-13 21:36:53,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 243 transitions, 1868 flow, removed 14 selfloop flow, removed 3 redundant places. [2025-03-13 21:36:53,428 INFO L231 Difference]: Finished difference. Result has 79 places, 73 transitions, 498 flow [2025-03-13 21:36:53,428 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=498, PETRI_PLACES=79, PETRI_TRANSITIONS=73} [2025-03-13 21:36:53,429 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 34 predicate places. [2025-03-13 21:36:53,429 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 73 transitions, 498 flow [2025-03-13 21:36:53,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:36:53,429 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:36:53,430 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:36:53,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 21:36:53,430 INFO L396 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)] === [2025-03-13 21:36:53,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:36:53,431 INFO L85 PathProgramCache]: Analyzing trace with hash -508827190, now seen corresponding path program 1 times [2025-03-13 21:36:53,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:36:53,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280332731] [2025-03-13 21:36:53,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:36:53,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:36:53,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-13 21:36:53,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-13 21:36:53,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:36:53,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:36:55,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:36:55,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:36:55,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280332731] [2025-03-13 21:36:55,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280332731] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:36:55,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:36:55,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-13 21:36:55,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030756142] [2025-03-13 21:36:55,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:36:55,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 21:36:55,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:36:55,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 21:36:55,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-03-13 21:36:55,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-13 21:36:55,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 73 transitions, 498 flow. Second operand has 13 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:36:55,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:36:55,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-13 21:36:55,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:36:56,912 INFO L124 PetriNetUnfolderBase]: 1340/2506 cut-off events. [2025-03-13 21:36:56,912 INFO L125 PetriNetUnfolderBase]: For 4672/4672 co-relation queries the response was YES. [2025-03-13 21:36:56,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8507 conditions, 2506 events. 1340/2506 cut-off events. For 4672/4672 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 14891 event pairs, 99 based on Foata normal form. 10/2516 useless extension candidates. Maximal degree in co-relation 8488. Up to 688 conditions per place. [2025-03-13 21:36:56,925 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 124 selfloop transitions, 34 changer transitions 74/240 dead transitions. [2025-03-13 21:36:56,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 240 transitions, 1759 flow [2025-03-13 21:36:56,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-13 21:36:56,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-13 21:36:56,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 337 transitions. [2025-03-13 21:36:56,930 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43205128205128207 [2025-03-13 21:36:56,930 INFO L175 Difference]: Start difference. First operand has 79 places, 73 transitions, 498 flow. Second operand 15 states and 337 transitions. [2025-03-13 21:36:56,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 240 transitions, 1759 flow [2025-03-13 21:36:56,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 240 transitions, 1704 flow, removed 9 selfloop flow, removed 4 redundant places. [2025-03-13 21:36:56,950 INFO L231 Difference]: Finished difference. Result has 92 places, 78 transitions, 623 flow [2025-03-13 21:36:56,950 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=623, PETRI_PLACES=92, PETRI_TRANSITIONS=78} [2025-03-13 21:36:56,951 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 47 predicate places. [2025-03-13 21:36:56,951 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 78 transitions, 623 flow [2025-03-13 21:36:56,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:36:56,951 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:36:56,951 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:36:56,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-13 21:36:56,952 INFO L396 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)] === [2025-03-13 21:36:56,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:36:56,953 INFO L85 PathProgramCache]: Analyzing trace with hash -52123254, now seen corresponding path program 2 times [2025-03-13 21:36:56,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:36:56,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201328318] [2025-03-13 21:36:56,953 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 21:36:56,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:36:56,986 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-03-13 21:36:57,023 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-13 21:36:57,023 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 21:36:57,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:36:58,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:36:58,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:36:58,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201328318] [2025-03-13 21:36:58,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201328318] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:36:58,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:36:58,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 21:36:58,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454493773] [2025-03-13 21:36:58,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:36:58,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-13 21:36:58,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:36:58,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-13 21:36:58,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-03-13 21:36:58,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-13 21:36:58,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 78 transitions, 623 flow. Second operand has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:36:58,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:36:58,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-13 21:36:58,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:37:01,198 INFO L124 PetriNetUnfolderBase]: 2221/4223 cut-off events. [2025-03-13 21:37:01,199 INFO L125 PetriNetUnfolderBase]: For 12718/12722 co-relation queries the response was YES. [2025-03-13 21:37:01,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15908 conditions, 4223 events. 2221/4223 cut-off events. For 12718/12722 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 28741 event pairs, 186 based on Foata normal form. 10/4233 useless extension candidates. Maximal degree in co-relation 15883. Up to 945 conditions per place. [2025-03-13 21:37:01,229 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 158 selfloop transitions, 74 changer transitions 106/346 dead transitions. [2025-03-13 21:37:01,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 346 transitions, 3290 flow [2025-03-13 21:37:01,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-13 21:37:01,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-13 21:37:01,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 432 transitions. [2025-03-13 21:37:01,232 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3956043956043956 [2025-03-13 21:37:01,232 INFO L175 Difference]: Start difference. First operand has 92 places, 78 transitions, 623 flow. Second operand 21 states and 432 transitions. [2025-03-13 21:37:01,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 346 transitions, 3290 flow [2025-03-13 21:37:01,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 346 transitions, 3082 flow, removed 15 selfloop flow, removed 8 redundant places. [2025-03-13 21:37:01,274 INFO L231 Difference]: Finished difference. Result has 117 places, 139 transitions, 1540 flow [2025-03-13 21:37:01,274 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1540, PETRI_PLACES=117, PETRI_TRANSITIONS=139} [2025-03-13 21:37:01,275 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 72 predicate places. [2025-03-13 21:37:01,276 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 139 transitions, 1540 flow [2025-03-13 21:37:01,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:01,277 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:37:01,277 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:37:01,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-13 21:37:01,277 INFO L396 AbstractCegarLoop]: === Iteration 6 === 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)] === [2025-03-13 21:37:01,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:37:01,278 INFO L85 PathProgramCache]: Analyzing trace with hash 2119112380, now seen corresponding path program 3 times [2025-03-13 21:37:01,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:37:01,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099633967] [2025-03-13 21:37:01,278 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-13 21:37:01,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:37:01,307 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 1 equivalence classes. [2025-03-13 21:37:01,348 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-13 21:37:01,348 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-13 21:37:01,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:37:02,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:37:02,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:37:02,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099633967] [2025-03-13 21:37:02,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099633967] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:37:02,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:37:02,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-13 21:37:02,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407264708] [2025-03-13 21:37:02,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:37:02,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 21:37:02,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:37:02,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 21:37:02,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-03-13 21:37:02,744 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-13 21:37:02,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 139 transitions, 1540 flow. Second operand has 13 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:02,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:37:02,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-13 21:37:02,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:37:04,839 INFO L124 PetriNetUnfolderBase]: 2234/4309 cut-off events. [2025-03-13 21:37:04,839 INFO L125 PetriNetUnfolderBase]: For 20469/20473 co-relation queries the response was YES. [2025-03-13 21:37:04,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18571 conditions, 4309 events. 2234/4309 cut-off events. For 20469/20473 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 30152 event pairs, 189 based on Foata normal form. 14/4323 useless extension candidates. Maximal degree in co-relation 18532. Up to 1116 conditions per place. [2025-03-13 21:37:04,860 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 178 selfloop transitions, 73 changer transitions 80/339 dead transitions. [2025-03-13 21:37:04,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 339 transitions, 3810 flow [2025-03-13 21:37:04,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-13 21:37:04,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-13 21:37:04,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 337 transitions. [2025-03-13 21:37:04,862 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43205128205128207 [2025-03-13 21:37:04,862 INFO L175 Difference]: Start difference. First operand has 117 places, 139 transitions, 1540 flow. Second operand 15 states and 337 transitions. [2025-03-13 21:37:04,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 339 transitions, 3810 flow [2025-03-13 21:37:04,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 339 transitions, 3698 flow, removed 54 selfloop flow, removed 3 redundant places. [2025-03-13 21:37:04,937 INFO L231 Difference]: Finished difference. Result has 133 places, 156 transitions, 1957 flow [2025-03-13 21:37:04,937 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1474, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1957, PETRI_PLACES=133, PETRI_TRANSITIONS=156} [2025-03-13 21:37:04,938 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 88 predicate places. [2025-03-13 21:37:04,938 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 156 transitions, 1957 flow [2025-03-13 21:37:04,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:04,938 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:37:04,938 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:37:04,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-13 21:37:04,938 INFO L396 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)] === [2025-03-13 21:37:04,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:37:04,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1601768424, now seen corresponding path program 1 times [2025-03-13 21:37:04,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:37:04,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373626324] [2025-03-13 21:37:04,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:37:04,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:37:04,964 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-13 21:37:05,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-13 21:37:05,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:37:05,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:37:06,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:37:06,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:37:06,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373626324] [2025-03-13 21:37:06,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373626324] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:37:06,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:37:06,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-13 21:37:06,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898029935] [2025-03-13 21:37:06,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:37:06,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-13 21:37:06,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:37:06,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-13 21:37:06,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2025-03-13 21:37:06,582 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 52 [2025-03-13 21:37:06,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 156 transitions, 1957 flow. Second operand has 15 states, 15 states have (on average 10.466666666666667) internal successors, (157), 15 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:06,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:37:06,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 52 [2025-03-13 21:37:06,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:37:08,973 INFO L124 PetriNetUnfolderBase]: 4168/7852 cut-off events. [2025-03-13 21:37:08,973 INFO L125 PetriNetUnfolderBase]: For 46068/46088 co-relation queries the response was YES. [2025-03-13 21:37:09,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35760 conditions, 7852 events. 4168/7852 cut-off events. For 46068/46088 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 59434 event pairs, 446 based on Foata normal form. 30/7872 useless extension candidates. Maximal degree in co-relation 35713. Up to 2221 conditions per place. [2025-03-13 21:37:09,021 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 261 selfloop transitions, 105 changer transitions 125/503 dead transitions. [2025-03-13 21:37:09,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 503 transitions, 6443 flow [2025-03-13 21:37:09,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-13 21:37:09,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2025-03-13 21:37:09,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 468 transitions. [2025-03-13 21:37:09,023 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.375 [2025-03-13 21:37:09,023 INFO L175 Difference]: Start difference. First operand has 133 places, 156 transitions, 1957 flow. Second operand 24 states and 468 transitions. [2025-03-13 21:37:09,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 503 transitions, 6443 flow [2025-03-13 21:37:09,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 503 transitions, 6157 flow, removed 33 selfloop flow, removed 7 redundant places. [2025-03-13 21:37:09,231 INFO L231 Difference]: Finished difference. Result has 166 places, 226 transitions, 3279 flow [2025-03-13 21:37:09,232 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1856, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=3279, PETRI_PLACES=166, PETRI_TRANSITIONS=226} [2025-03-13 21:37:09,233 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 121 predicate places. [2025-03-13 21:37:09,234 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 226 transitions, 3279 flow [2025-03-13 21:37:09,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.466666666666667) internal successors, (157), 15 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:09,234 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:37:09,234 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:37:09,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-13 21:37:09,235 INFO L396 AbstractCegarLoop]: === Iteration 8 === 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)] === [2025-03-13 21:37:09,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:37:09,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1639207236, now seen corresponding path program 4 times [2025-03-13 21:37:09,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:37:09,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871895368] [2025-03-13 21:37:09,236 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-13 21:37:09,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:37:09,275 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-03-13 21:37:09,319 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-03-13 21:37:09,319 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-13 21:37:09,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:37:10,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:37:10,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:37:10,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871895368] [2025-03-13 21:37:10,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871895368] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:37:10,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:37:10,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-13 21:37:10,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856217123] [2025-03-13 21:37:10,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:37:10,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-13 21:37:10,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:37:10,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-13 21:37:10,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2025-03-13 21:37:10,668 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-13 21:37:10,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 226 transitions, 3279 flow. Second operand has 14 states, 14 states have (on average 11.5) internal successors, (161), 14 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:10,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:37:10,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-13 21:37:10,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:37:12,724 INFO L124 PetriNetUnfolderBase]: 3744/7416 cut-off events. [2025-03-13 21:37:12,724 INFO L125 PetriNetUnfolderBase]: For 61936/61972 co-relation queries the response was YES. [2025-03-13 21:37:12,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37774 conditions, 7416 events. 3744/7416 cut-off events. For 61936/61972 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 58963 event pairs, 363 based on Foata normal form. 32/7438 useless extension candidates. Maximal degree in co-relation 37710. Up to 2338 conditions per place. [2025-03-13 21:37:12,843 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 258 selfloop transitions, 130 changer transitions 95/499 dead transitions. [2025-03-13 21:37:12,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 499 transitions, 7167 flow [2025-03-13 21:37:12,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-13 21:37:12,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2025-03-13 21:37:12,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 484 transitions. [2025-03-13 21:37:12,846 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3723076923076923 [2025-03-13 21:37:12,846 INFO L175 Difference]: Start difference. First operand has 166 places, 226 transitions, 3279 flow. Second operand 25 states and 484 transitions. [2025-03-13 21:37:12,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 499 transitions, 7167 flow [2025-03-13 21:37:13,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 499 transitions, 6982 flow, removed 80 selfloop flow, removed 7 redundant places. [2025-03-13 21:37:13,153 INFO L231 Difference]: Finished difference. Result has 199 places, 290 transitions, 4723 flow [2025-03-13 21:37:13,153 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=3175, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=4723, PETRI_PLACES=199, PETRI_TRANSITIONS=290} [2025-03-13 21:37:13,154 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 154 predicate places. [2025-03-13 21:37:13,154 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 290 transitions, 4723 flow [2025-03-13 21:37:13,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.5) internal successors, (161), 14 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:13,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:37:13,154 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:37:13,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-13 21:37:13,154 INFO L396 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)] === [2025-03-13 21:37:13,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:37:13,155 INFO L85 PathProgramCache]: Analyzing trace with hash -2033347070, now seen corresponding path program 2 times [2025-03-13 21:37:13,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:37:13,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435069653] [2025-03-13 21:37:13,155 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 21:37:13,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:37:13,180 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-03-13 21:37:13,209 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-13 21:37:13,210 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 21:37:13,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:37:14,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:37:14,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:37:14,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435069653] [2025-03-13 21:37:14,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435069653] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:37:14,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:37:14,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 21:37:14,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43494871] [2025-03-13 21:37:14,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:37:14,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-13 21:37:14,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:37:14,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-13 21:37:14,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-03-13 21:37:14,616 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-13 21:37:14,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 290 transitions, 4723 flow. Second operand has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:14,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:37:14,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-13 21:37:14,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:37:16,796 INFO L124 PetriNetUnfolderBase]: 4258/8311 cut-off events. [2025-03-13 21:37:16,796 INFO L125 PetriNetUnfolderBase]: For 90711/90763 co-relation queries the response was YES. [2025-03-13 21:37:16,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46562 conditions, 8311 events. 4258/8311 cut-off events. For 90711/90763 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 66352 event pairs, 130 based on Foata normal form. 43/8342 useless extension candidates. Maximal degree in co-relation 46481. Up to 1794 conditions per place. [2025-03-13 21:37:16,869 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 225 selfloop transitions, 248 changer transitions 123/613 dead transitions. [2025-03-13 21:37:16,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 613 transitions, 10216 flow [2025-03-13 21:37:16,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-13 21:37:16,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-03-13 21:37:16,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 453 transitions. [2025-03-13 21:37:16,873 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.395979020979021 [2025-03-13 21:37:16,873 INFO L175 Difference]: Start difference. First operand has 199 places, 290 transitions, 4723 flow. Second operand 22 states and 453 transitions. [2025-03-13 21:37:16,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 613 transitions, 10216 flow [2025-03-13 21:37:17,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 613 transitions, 9661 flow, removed 277 selfloop flow, removed 5 redundant places. [2025-03-13 21:37:17,375 INFO L231 Difference]: Finished difference. Result has 220 places, 363 transitions, 6617 flow [2025-03-13 21:37:17,375 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=4534, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=179, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=6617, PETRI_PLACES=220, PETRI_TRANSITIONS=363} [2025-03-13 21:37:17,376 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 175 predicate places. [2025-03-13 21:37:17,376 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 363 transitions, 6617 flow [2025-03-13 21:37:17,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:17,376 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:37:17,376 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:37:17,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-13 21:37:17,376 INFO L396 AbstractCegarLoop]: === Iteration 10 === 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)] === [2025-03-13 21:37:17,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:37:17,377 INFO L85 PathProgramCache]: Analyzing trace with hash 255077136, now seen corresponding path program 5 times [2025-03-13 21:37:17,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:37:17,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389347217] [2025-03-13 21:37:17,377 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-13 21:37:17,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:37:17,403 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-03-13 21:37:17,427 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-13 21:37:17,428 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 21:37:17,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:37:18,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:37:18,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:37:18,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389347217] [2025-03-13 21:37:18,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389347217] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:37:18,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:37:18,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 21:37:18,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268487329] [2025-03-13 21:37:18,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:37:18,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-13 21:37:18,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:37:18,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-13 21:37:18,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-13 21:37:18,846 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-13 21:37:18,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 363 transitions, 6617 flow. Second operand has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:18,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:37:18,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-13 21:37:18,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:37:25,350 INFO L124 PetriNetUnfolderBase]: 4712/9296 cut-off events. [2025-03-13 21:37:25,350 INFO L125 PetriNetUnfolderBase]: For 115949/116039 co-relation queries the response was YES. [2025-03-13 21:37:25,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54540 conditions, 9296 events. 4712/9296 cut-off events. For 115949/116039 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 76965 event pairs, 290 based on Foata normal form. 54/9342 useless extension candidates. Maximal degree in co-relation 54452. Up to 1759 conditions per place. [2025-03-13 21:37:25,426 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 306 selfloop transitions, 294 changer transitions 184/797 dead transitions. [2025-03-13 21:37:25,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 797 transitions, 14065 flow [2025-03-13 21:37:25,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-03-13 21:37:25,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2025-03-13 21:37:25,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 676 transitions. [2025-03-13 21:37:25,429 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3939393939393939 [2025-03-13 21:37:25,429 INFO L175 Difference]: Start difference. First operand has 220 places, 363 transitions, 6617 flow. Second operand 33 states and 676 transitions. [2025-03-13 21:37:25,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 797 transitions, 14065 flow [2025-03-13 21:37:26,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 797 transitions, 13061 flow, removed 345 selfloop flow, removed 9 redundant places. [2025-03-13 21:37:26,133 INFO L231 Difference]: Finished difference. Result has 266 places, 444 transitions, 8914 flow [2025-03-13 21:37:26,134 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=6167, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=210, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=8914, PETRI_PLACES=266, PETRI_TRANSITIONS=444} [2025-03-13 21:37:26,134 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 221 predicate places. [2025-03-13 21:37:26,134 INFO L471 AbstractCegarLoop]: Abstraction has has 266 places, 444 transitions, 8914 flow [2025-03-13 21:37:26,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:26,134 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:37:26,134 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:37:26,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-13 21:37:26,134 INFO L396 AbstractCegarLoop]: === Iteration 11 === 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)] === [2025-03-13 21:37:26,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:37:26,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1230189196, now seen corresponding path program 6 times [2025-03-13 21:37:26,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:37:26,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608018541] [2025-03-13 21:37:26,135 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-13 21:37:26,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:37:26,160 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 1 equivalence classes. [2025-03-13 21:37:26,190 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-13 21:37:26,190 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-13 21:37:26,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:37:28,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:37:28,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:37:28,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608018541] [2025-03-13 21:37:28,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608018541] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:37:28,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:37:28,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-03-13 21:37:28,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573619439] [2025-03-13 21:37:28,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:37:28,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-13 21:37:28,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:37:28,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-13 21:37:28,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2025-03-13 21:37:28,980 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2025-03-13 21:37:28,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 444 transitions, 8914 flow. Second operand has 18 states, 18 states have (on average 9.277777777777779) internal successors, (167), 18 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:28,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:37:28,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2025-03-13 21:37:28,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:37:34,326 INFO L124 PetriNetUnfolderBase]: 5052/9760 cut-off events. [2025-03-13 21:37:34,327 INFO L125 PetriNetUnfolderBase]: For 142793/142821 co-relation queries the response was YES. [2025-03-13 21:37:34,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60801 conditions, 9760 events. 5052/9760 cut-off events. For 142793/142821 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 78258 event pairs, 398 based on Foata normal form. 44/9804 useless extension candidates. Maximal degree in co-relation 60694. Up to 2365 conditions per place. [2025-03-13 21:37:34,416 INFO L140 encePairwiseOnDemand]: 29/52 looper letters, 399 selfloop transitions, 326 changer transitions 132/864 dead transitions. [2025-03-13 21:37:34,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 864 transitions, 16551 flow [2025-03-13 21:37:34,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-03-13 21:37:34,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2025-03-13 21:37:34,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 595 transitions. [2025-03-13 21:37:34,418 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3269230769230769 [2025-03-13 21:37:34,418 INFO L175 Difference]: Start difference. First operand has 266 places, 444 transitions, 8914 flow. Second operand 35 states and 595 transitions. [2025-03-13 21:37:34,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 864 transitions, 16551 flow [2025-03-13 21:37:35,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 864 transitions, 15781 flow, removed 218 selfloop flow, removed 12 redundant places. [2025-03-13 21:37:35,475 INFO L231 Difference]: Finished difference. Result has 300 places, 541 transitions, 11331 flow [2025-03-13 21:37:35,475 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=8424, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=11331, PETRI_PLACES=300, PETRI_TRANSITIONS=541} [2025-03-13 21:37:35,475 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 255 predicate places. [2025-03-13 21:37:35,475 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 541 transitions, 11331 flow [2025-03-13 21:37:35,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.277777777777779) internal successors, (167), 18 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:35,475 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:37:35,476 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:37:35,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-13 21:37:35,476 INFO L396 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)] === [2025-03-13 21:37:35,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:37:35,476 INFO L85 PathProgramCache]: Analyzing trace with hash 757997884, now seen corresponding path program 3 times [2025-03-13 21:37:35,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:37:35,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653315587] [2025-03-13 21:37:35,476 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-13 21:37:35,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:37:35,501 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 1 equivalence classes. [2025-03-13 21:37:35,536 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-13 21:37:35,536 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-13 21:37:35,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:37:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:37:36,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:37:36,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653315587] [2025-03-13 21:37:36,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653315587] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:37:36,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:37:36,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 21:37:36,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342512593] [2025-03-13 21:37:36,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:37:36,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-13 21:37:36,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:37:36,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-13 21:37:36,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-13 21:37:36,727 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-13 21:37:36,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 541 transitions, 11331 flow. Second operand has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:36,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:37:36,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-13 21:37:36,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:37:40,140 INFO L124 PetriNetUnfolderBase]: 5451/10636 cut-off events. [2025-03-13 21:37:40,140 INFO L125 PetriNetUnfolderBase]: For 187871/187993 co-relation queries the response was YES. [2025-03-13 21:37:40,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71306 conditions, 10636 events. 5451/10636 cut-off events. For 187871/187993 co-relation queries the response was YES. Maximal size of possible extension queue 521. Compared 87764 event pairs, 364 based on Foata normal form. 67/10657 useless extension candidates. Maximal degree in co-relation 71189. Up to 1972 conditions per place. [2025-03-13 21:37:40,241 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 419 selfloop transitions, 402 changer transitions 95/942 dead transitions. [2025-03-13 21:37:40,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 942 transitions, 19747 flow [2025-03-13 21:37:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-03-13 21:37:40,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2025-03-13 21:37:40,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 561 transitions. [2025-03-13 21:37:40,242 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3995726495726496 [2025-03-13 21:37:40,242 INFO L175 Difference]: Start difference. First operand has 300 places, 541 transitions, 11331 flow. Second operand 27 states and 561 transitions. [2025-03-13 21:37:40,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 942 transitions, 19747 flow [2025-03-13 21:37:41,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 942 transitions, 19002 flow, removed 119 selfloop flow, removed 12 redundant places. [2025-03-13 21:37:41,656 INFO L231 Difference]: Finished difference. Result has 321 places, 670 transitions, 15174 flow [2025-03-13 21:37:41,657 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=10846, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=274, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=15174, PETRI_PLACES=321, PETRI_TRANSITIONS=670} [2025-03-13 21:37:41,657 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 276 predicate places. [2025-03-13 21:37:41,657 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 670 transitions, 15174 flow [2025-03-13 21:37:41,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:41,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:37:41,657 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:37:41,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-13 21:37:41,657 INFO L396 AbstractCegarLoop]: === Iteration 13 === 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)] === [2025-03-13 21:37:41,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:37:41,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1043680066, now seen corresponding path program 7 times [2025-03-13 21:37:41,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:37:41,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711073286] [2025-03-13 21:37:41,658 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-13 21:37:41,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:37:41,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-13 21:37:41,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-13 21:37:41,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:37:41,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:37:43,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:37:43,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:37:43,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711073286] [2025-03-13 21:37:43,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711073286] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:37:43,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:37:43,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 21:37:43,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356748351] [2025-03-13 21:37:43,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:37:43,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-13 21:37:43,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:37:43,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-13 21:37:43,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-13 21:37:43,198 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-13 21:37:43,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 670 transitions, 15174 flow. Second operand has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:43,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:37:43,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-13 21:37:43,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:37:47,067 INFO L124 PetriNetUnfolderBase]: 5163/10153 cut-off events. [2025-03-13 21:37:47,067 INFO L125 PetriNetUnfolderBase]: For 198613/198689 co-relation queries the response was YES. [2025-03-13 21:37:47,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70494 conditions, 10153 events. 5163/10153 cut-off events. For 198613/198689 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 84014 event pairs, 415 based on Foata normal form. 70/10195 useless extension candidates. Maximal degree in co-relation 70370. Up to 2348 conditions per place. [2025-03-13 21:37:47,167 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 395 selfloop transitions, 388 changer transitions 97/900 dead transitions. [2025-03-13 21:37:47,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 900 transitions, 20243 flow [2025-03-13 21:37:47,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-13 21:37:47,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-13 21:37:47,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 427 transitions. [2025-03-13 21:37:47,168 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.391025641025641 [2025-03-13 21:37:47,169 INFO L175 Difference]: Start difference. First operand has 321 places, 670 transitions, 15174 flow. Second operand 21 states and 427 transitions. [2025-03-13 21:37:47,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 900 transitions, 20243 flow [2025-03-13 21:37:48,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 900 transitions, 19910 flow, removed 101 selfloop flow, removed 10 redundant places. [2025-03-13 21:37:48,858 INFO L231 Difference]: Finished difference. Result has 341 places, 668 transitions, 16161 flow [2025-03-13 21:37:48,858 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=14928, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=670, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=360, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=16161, PETRI_PLACES=341, PETRI_TRANSITIONS=668} [2025-03-13 21:37:48,859 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 296 predicate places. [2025-03-13 21:37:48,859 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 668 transitions, 16161 flow [2025-03-13 21:37:48,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:48,859 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:37:48,859 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:37:48,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-13 21:37:48,859 INFO L396 AbstractCegarLoop]: === Iteration 14 === 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)] === [2025-03-13 21:37:48,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:37:48,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1731641976, now seen corresponding path program 4 times [2025-03-13 21:37:48,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:37:48,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448881925] [2025-03-13 21:37:48,860 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-13 21:37:48,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:37:48,886 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-03-13 21:37:48,911 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-03-13 21:37:48,912 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-13 21:37:48,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:37:50,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:37:50,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:37:50,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448881925] [2025-03-13 21:37:50,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448881925] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:37:50,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:37:50,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-13 21:37:50,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889298914] [2025-03-13 21:37:50,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:37:50,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-13 21:37:50,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:37:50,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-13 21:37:50,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2025-03-13 21:37:51,069 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-13 21:37:51,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 668 transitions, 16161 flow. Second operand has 15 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:51,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:37:51,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-13 21:37:51,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:37:55,656 INFO L124 PetriNetUnfolderBase]: 5319/10432 cut-off events. [2025-03-13 21:37:55,656 INFO L125 PetriNetUnfolderBase]: For 236019/236095 co-relation queries the response was YES. [2025-03-13 21:37:55,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75853 conditions, 10432 events. 5319/10432 cut-off events. For 236019/236095 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 86358 event pairs, 300 based on Foata normal form. 37/10437 useless extension candidates. Maximal degree in co-relation 75723. Up to 2524 conditions per place. [2025-03-13 21:37:55,790 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 432 selfloop transitions, 425 changer transitions 70/954 dead transitions. [2025-03-13 21:37:55,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 954 transitions, 22921 flow [2025-03-13 21:37:55,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-13 21:37:55,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2025-03-13 21:37:55,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 476 transitions. [2025-03-13 21:37:55,792 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3814102564102564 [2025-03-13 21:37:55,792 INFO L175 Difference]: Start difference. First operand has 341 places, 668 transitions, 16161 flow. Second operand 24 states and 476 transitions. [2025-03-13 21:37:55,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 954 transitions, 22921 flow [2025-03-13 21:37:57,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 954 transitions, 22268 flow, removed 78 selfloop flow, removed 14 redundant places. [2025-03-13 21:37:57,688 INFO L231 Difference]: Finished difference. Result has 361 places, 742 transitions, 19039 flow [2025-03-13 21:37:57,689 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=15644, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=668, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=351, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=19039, PETRI_PLACES=361, PETRI_TRANSITIONS=742} [2025-03-13 21:37:57,689 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 316 predicate places. [2025-03-13 21:37:57,689 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 742 transitions, 19039 flow [2025-03-13 21:37:57,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:57,690 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:37:57,690 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:37:57,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-13 21:37:57,690 INFO L396 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)] === [2025-03-13 21:37:57,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:37:57,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1632531382, now seen corresponding path program 5 times [2025-03-13 21:37:57,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:37:57,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923312591] [2025-03-13 21:37:57,690 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-13 21:37:57,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:37:57,714 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-03-13 21:37:57,734 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-13 21:37:57,735 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 21:37:57,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:37:58,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:37:58,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:37:58,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923312591] [2025-03-13 21:37:58,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923312591] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:37:58,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:37:58,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 21:37:58,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999785942] [2025-03-13 21:37:58,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:37:58,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-13 21:37:58,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:37:58,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-13 21:37:58,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-03-13 21:37:58,904 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-13 21:37:58,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 742 transitions, 19039 flow. Second operand has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:37:58,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:37:58,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-13 21:37:58,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand