./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 c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/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-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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-?-c00e63d-m [2025-02-06 04:27:12,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:27:12,357 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 04:27:12,364 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:27:12,364 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:27:12,389 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:27:12,394 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:27:12,394 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:27:12,394 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:27:12,394 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:27:12,394 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:27:12,394 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:27:12,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:27:12,394 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:27:12,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:27:12,395 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:27:12,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:27:12,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:27:12,396 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:27:12,396 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:27:12,396 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:27:12,396 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:27:12,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:27:12,396 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:27:12,396 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:27:12,396 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:27:12,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:27:12,396 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-jdk21/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 [2025-02-06 04:27:12,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:27:12,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:27:12,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:27:12,723 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:27:12,723 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:27:12,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2025-02-06 04:27:13,966 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/653f49a11/39ea2d4341784aac993ad8bb0d2dc37d/FLAGc8b60d3f5 [2025-02-06 04:27:14,433 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:27:14,434 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2025-02-06 04:27:14,479 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/653f49a11/39ea2d4341784aac993ad8bb0d2dc37d/FLAGc8b60d3f5 [2025-02-06 04:27:14,524 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/653f49a11/39ea2d4341784aac993ad8bb0d2dc37d [2025-02-06 04:27:14,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:27:14,526 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:27:14,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:27:14,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:27:14,530 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:27:14,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:27:14" (1/1) ... [2025-02-06 04:27:14,531 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff8a6f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:27:14, skipping insertion in model container [2025-02-06 04:27:14,531 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:27:14" (1/1) ... [2025-02-06 04:27:14,611 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:27:14,856 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2025-02-06 04:27:17,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:27:17,976 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:27:17,986 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2025-02-06 04:27:18,066 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] [2025-02-06 04:27:18,067 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] [2025-02-06 04:27:18,067 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] [2025-02-06 04:27:18,068 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] [2025-02-06 04:27:18,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2025-02-06 04:27:18,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:27:18,519 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:27:18,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:27:18 WrapperNode [2025-02-06 04:27:18,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:27:18,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:27:18,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:27:18,520 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:27:18,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:27:18" (1/1) ... [2025-02-06 04:27:18,604 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:27:18" (1/1) ... [2025-02-06 04:27:18,648 INFO L138 Inliner]: procedures = 1354, calls = 1479, calls flagged for inlining = 352, calls inlined = 18, statements flattened = 394 [2025-02-06 04:27:18,649 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:27:18,649 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:27:18,650 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:27:18,650 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:27:18,660 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:27:18" (1/1) ... [2025-02-06 04:27:18,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:27:18" (1/1) ... [2025-02-06 04:27:18,665 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:27:18" (1/1) ... [2025-02-06 04:27:18,689 INFO L175 MemorySlicer]: Split 52 memory accesses to 7 slices as follows [2, 1, 4, 2, 3, 9, 31]. 60 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 1, 4, 2, 3, 0, 31]. The 3 writes are split as follows [0, 0, 0, 0, 0, 3, 0]. [2025-02-06 04:27:18,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:27:18" (1/1) ... [2025-02-06 04:27:18,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:27:18" (1/1) ... [2025-02-06 04:27:18,706 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:27:18" (1/1) ... [2025-02-06 04:27:18,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:27:18" (1/1) ... [2025-02-06 04:27:18,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:27:18" (1/1) ... [2025-02-06 04:27:18,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:27:18" (1/1) ... [2025-02-06 04:27:18,731 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:27:18,732 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:27:18,732 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:27:18,732 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:27:18,733 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:27:18" (1/1) ... [2025-02-06 04:27:18,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:27:18,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:27:18,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 04:27:18,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 04:27:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 04:27:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 04:27:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 04:27:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 04:27:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 04:27:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 04:27:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 04:27:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 04:27:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:27:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:27:18,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:27:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 04:27:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 04:27:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 04:27:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 04:27:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 04:27:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 04:27:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 04:27:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2025-02-06 04:27:18,802 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2025-02-06 04:27:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 04:27:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 04:27:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 04:27:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 04:27:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 04:27:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 04:27:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 04:27:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 04:27:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-06 04:27:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2025-02-06 04:27:18,804 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2025-02-06 04:27:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:27:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 04:27:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 04:27:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 04:27:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 04:27:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 04:27:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 04:27:18,806 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 04:27:19,106 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:27:19,108 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:27:19,281 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6551: havoc access_ok_#t~nondet1065#1; [2025-02-06 04:27:19,281 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6543: havoc __put_user_#t~nondet1063#1; [2025-02-06 04:27:19,282 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6636: havoc nvram_read_byte_#t~nondet1081#1; [2025-02-06 04:27:19,386 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6551: havoc access_ok_#t~nondet1065#1; [2025-02-06 04:27:19,387 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6535: havoc __get_user_#t~nondet1061#1; [2025-02-06 04:27:19,541 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6632: havoc nvram_get_size_#t~nondet1080#1; [2025-02-06 04:27:19,541 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6650: havoc printk_#t~nondet1083#1; [2025-02-06 04:27:19,541 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6624: havoc misc_register_#t~nondet1078#1; [2025-02-06 04:27:19,542 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 04:27:19,542 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:27:20,012 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:27:20,014 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:27:20,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:27:20 BoogieIcfgContainer [2025-02-06 04:27:20,015 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:27:20,016 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:27:20,017 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:27:20,020 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:27:20,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:27:14" (1/3) ... [2025-02-06 04:27:20,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eefc9b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:27:20, skipping insertion in model container [2025-02-06 04:27:20,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:27:18" (2/3) ... [2025-02-06 04:27:20,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eefc9b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:27:20, skipping insertion in model container [2025-02-06 04:27:20,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:27:20" (3/3) ... [2025-02-06 04:27:20,021 INFO L128 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2025-02-06 04:27:20,033 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:27:20,037 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. [2025-02-06 04:27:20,037 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 04:27:20,100 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 04:27:20,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 52 transitions, 118 flow [2025-02-06 04:27:20,147 INFO L124 PetriNetUnfolderBase]: 10/50 cut-off events. [2025-02-06 04:27:20,148 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 04:27:20,151 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. [2025-02-06 04:27:20,151 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 52 transitions, 118 flow [2025-02-06 04:27:20,153 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 48 transitions, 105 flow [2025-02-06 04:27:20,157 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:27:20,167 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;@75b117a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:27:20,168 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-06 04:27:20,179 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 04:27:20,179 INFO L124 PetriNetUnfolderBase]: 8/41 cut-off events. [2025-02-06 04:27:20,180 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 04:27:20,180 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:27:20,180 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:27:20,180 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)] === [2025-02-06 04:27:20,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:27:20,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1981130031, now seen corresponding path program 1 times [2025-02-06 04:27:20,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:27:20,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112362919] [2025-02-06 04:27:20,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:27:20,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:27:20,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 04:27:20,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 04:27:20,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:27:20,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:27:21,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:27:21,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:27:21,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112362919] [2025-02-06 04:27:21,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112362919] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:27:21,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:27:21,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 04:27:21,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742107238] [2025-02-06 04:27:21,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:27:21,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:27:21,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:27:21,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:27:21,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:27:21,349 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2025-02-06 04:27:21,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:21,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:27:21,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2025-02-06 04:27:21,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:27:21,865 INFO L124 PetriNetUnfolderBase]: 818/1438 cut-off events. [2025-02-06 04:27:21,865 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2025-02-06 04:27:21,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2754 conditions, 1438 events. 818/1438 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 6511 event pairs, 332 based on Foata normal form. 57/1336 useless extension candidates. Maximal degree in co-relation 2675. Up to 811 conditions per place. [2025-02-06 04:27:21,879 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 75 selfloop transitions, 13 changer transitions 24/121 dead transitions. [2025-02-06 04:27:21,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 121 transitions, 484 flow [2025-02-06 04:27:21,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:27:21,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 04:27:21,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 210 transitions. [2025-02-06 04:27:21,887 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5048076923076923 [2025-02-06 04:27:21,888 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 105 flow. Second operand 8 states and 210 transitions. [2025-02-06 04:27:21,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 121 transitions, 484 flow [2025-02-06 04:27:21,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 121 transitions, 476 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 04:27:21,894 INFO L231 Difference]: Finished difference. Result has 53 places, 54 transitions, 167 flow [2025-02-06 04:27:21,895 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=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=167, PETRI_PLACES=53, PETRI_TRANSITIONS=54} [2025-02-06 04:27:21,897 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 8 predicate places. [2025-02-06 04:27:21,897 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 54 transitions, 167 flow [2025-02-06 04:27:21,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:21,897 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:27:21,897 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:27:21,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 04:27:21,898 INFO L396 AbstractCegarLoop]: === Iteration 2 === 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)] === [2025-02-06 04:27:21,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:27:21,898 INFO L85 PathProgramCache]: Analyzing trace with hash 16289508, now seen corresponding path program 1 times [2025-02-06 04:27:21,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:27:21,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446013108] [2025-02-06 04:27:21,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:27:21,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:27:21,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 04:27:21,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 04:27:21,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:27:21,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:27:22,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:27:22,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:27:22,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446013108] [2025-02-06 04:27:22,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446013108] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:27:22,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:27:22,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 04:27:22,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941573938] [2025-02-06 04:27:22,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:27:22,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:27:22,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:27:22,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:27:22,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:27:22,882 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2025-02-06 04:27:22,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 54 transitions, 167 flow. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:22,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:27:22,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2025-02-06 04:27:22,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:27:23,708 INFO L124 PetriNetUnfolderBase]: 1474/2574 cut-off events. [2025-02-06 04:27:23,708 INFO L125 PetriNetUnfolderBase]: For 827/827 co-relation queries the response was YES. [2025-02-06 04:27:23,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5936 conditions, 2574 events. 1474/2574 cut-off events. For 827/827 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 13996 event pairs, 246 based on Foata normal form. 0/2428 useless extension candidates. Maximal degree in co-relation 5600. Up to 751 conditions per place. [2025-02-06 04:27:23,719 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 116 selfloop transitions, 23 changer transitions 66/215 dead transitions. [2025-02-06 04:27:23,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 215 transitions, 1127 flow [2025-02-06 04:27:23,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 04:27:23,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 04:27:23,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 270 transitions. [2025-02-06 04:27:23,721 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5192307692307693 [2025-02-06 04:27:23,721 INFO L175 Difference]: Start difference. First operand has 53 places, 54 transitions, 167 flow. Second operand 10 states and 270 transitions. [2025-02-06 04:27:23,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 215 transitions, 1127 flow [2025-02-06 04:27:23,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 215 transitions, 1127 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 04:27:23,729 INFO L231 Difference]: Finished difference. Result has 69 places, 73 transitions, 363 flow [2025-02-06 04:27:23,729 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=363, PETRI_PLACES=69, PETRI_TRANSITIONS=73} [2025-02-06 04:27:23,729 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 24 predicate places. [2025-02-06 04:27:23,729 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 73 transitions, 363 flow [2025-02-06 04:27:23,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:23,730 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:27:23,730 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:27:23,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 04:27:23,730 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)] === [2025-02-06 04:27:23,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:27:23,734 INFO L85 PathProgramCache]: Analyzing trace with hash 957789798, now seen corresponding path program 1 times [2025-02-06 04:27:23,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:27:23,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137697935] [2025-02-06 04:27:23,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:27:23,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:27:23,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 04:27:23,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 04:27:23,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:27:23,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:27:24,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:27:24,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:27:24,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137697935] [2025-02-06 04:27:24,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137697935] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:27:24,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427096535] [2025-02-06 04:27:24,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:27:24,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:27:24,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:27:24,840 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:27:24,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 04:27:25,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 04:27:25,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 04:27:25,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:27:25,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:27:25,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 04:27:25,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:27:25,493 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 [2025-02-06 04:27:25,513 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 [2025-02-06 04:27:25,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 04:27:25,570 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:27:25,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427096535] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:27:25,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:27:25,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2025-02-06 04:27:25,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252548173] [2025-02-06 04:27:25,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:27:25,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:27:25,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:27:25,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:27:25,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2025-02-06 04:27:25,595 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52 [2025-02-06 04:27:25,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 73 transitions, 363 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:25,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:27:25,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52 [2025-02-06 04:27:25,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:27:26,114 INFO L124 PetriNetUnfolderBase]: 1166/2124 cut-off events. [2025-02-06 04:27:26,114 INFO L125 PetriNetUnfolderBase]: For 1761/1763 co-relation queries the response was YES. [2025-02-06 04:27:26,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6127 conditions, 2124 events. 1166/2124 cut-off events. For 1761/1763 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 11409 event pairs, 478 based on Foata normal form. 42/2080 useless extension candidates. Maximal degree in co-relation 6019. Up to 1158 conditions per place. [2025-02-06 04:27:26,122 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 51 selfloop transitions, 16 changer transitions 70/149 dead transitions. [2025-02-06 04:27:26,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 149 transitions, 925 flow [2025-02-06 04:27:26,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 04:27:26,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 04:27:26,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2025-02-06 04:27:26,126 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5054945054945055 [2025-02-06 04:27:26,126 INFO L175 Difference]: Start difference. First operand has 69 places, 73 transitions, 363 flow. Second operand 7 states and 184 transitions. [2025-02-06 04:27:26,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 149 transitions, 925 flow [2025-02-06 04:27:26,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 149 transitions, 923 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-06 04:27:26,142 INFO L231 Difference]: Finished difference. Result has 77 places, 64 transitions, 386 flow [2025-02-06 04:27:26,142 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=386, PETRI_PLACES=77, PETRI_TRANSITIONS=64} [2025-02-06 04:27:26,143 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 32 predicate places. [2025-02-06 04:27:26,143 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 64 transitions, 386 flow [2025-02-06 04:27:26,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:26,144 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:27:26,144 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] [2025-02-06 04:27:26,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 04:27:26,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:27:26,345 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)] === [2025-02-06 04:27:26,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:27:26,346 INFO L85 PathProgramCache]: Analyzing trace with hash -508827190, now seen corresponding path program 1 times [2025-02-06 04:27:26,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:27:26,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829542633] [2025-02-06 04:27:26,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:27:26,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:27:26,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:27:26,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:27:26,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:27:26,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:27:28,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:27:28,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:27:28,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829542633] [2025-02-06 04:27:28,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829542633] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:27:28,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:27:28,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-06 04:27:28,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619280905] [2025-02-06 04:27:28,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:27:28,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 04:27:28,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:27:28,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 04:27:28,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-02-06 04:27:28,224 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-02-06 04:27:28,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 64 transitions, 386 flow. Second operand has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:28,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:27:28,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-02-06 04:27:28,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:27:30,001 INFO L124 PetriNetUnfolderBase]: 1714/3218 cut-off events. [2025-02-06 04:27:30,002 INFO L125 PetriNetUnfolderBase]: For 5290/5290 co-relation queries the response was YES. [2025-02-06 04:27:30,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10251 conditions, 3218 events. 1714/3218 cut-off events. For 5290/5290 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 20261 event pairs, 164 based on Foata normal form. 10/3228 useless extension candidates. Maximal degree in co-relation 10183. Up to 898 conditions per place. [2025-02-06 04:27:30,016 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 146 selfloop transitions, 39 changer transitions 101/295 dead transitions. [2025-02-06 04:27:30,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 295 transitions, 2421 flow [2025-02-06 04:27:30,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 04:27:30,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-06 04:27:30,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 337 transitions. [2025-02-06 04:27:30,021 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43205128205128207 [2025-02-06 04:27:30,021 INFO L175 Difference]: Start difference. First operand has 77 places, 64 transitions, 386 flow. Second operand 15 states and 337 transitions. [2025-02-06 04:27:30,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 295 transitions, 2421 flow [2025-02-06 04:27:30,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 295 transitions, 2319 flow, removed 24 selfloop flow, removed 5 redundant places. [2025-02-06 04:27:30,047 INFO L231 Difference]: Finished difference. Result has 94 places, 93 transitions, 802 flow [2025-02-06 04:27:30,047 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=802, PETRI_PLACES=94, PETRI_TRANSITIONS=93} [2025-02-06 04:27:30,048 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 49 predicate places. [2025-02-06 04:27:30,048 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 93 transitions, 802 flow [2025-02-06 04:27:30,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:30,049 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:27:30,049 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] [2025-02-06 04:27:30,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 04:27:30,049 INFO L396 AbstractCegarLoop]: === Iteration 5 === 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)] === [2025-02-06 04:27:30,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:27:30,049 INFO L85 PathProgramCache]: Analyzing trace with hash -940738648, now seen corresponding path program 1 times [2025-02-06 04:27:30,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:27:30,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944563124] [2025-02-06 04:27:30,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:27:30,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:27:30,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:27:30,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:27:30,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:27:30,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:27:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:27:31,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:27:31,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944563124] [2025-02-06 04:27:31,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944563124] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:27:31,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:27:31,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 04:27:31,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144834546] [2025-02-06 04:27:31,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:27:31,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 04:27:31,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:27:31,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 04:27:31,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2025-02-06 04:27:31,302 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-02-06 04:27:31,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 93 transitions, 802 flow. Second operand has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:31,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:27:31,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-02-06 04:27:31,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:27:33,320 INFO L124 PetriNetUnfolderBase]: 3629/6698 cut-off events. [2025-02-06 04:27:33,321 INFO L125 PetriNetUnfolderBase]: For 18748/18760 co-relation queries the response was YES. [2025-02-06 04:27:33,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25442 conditions, 6698 events. 3629/6698 cut-off events. For 18748/18760 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 48267 event pairs, 380 based on Foata normal form. 19/6715 useless extension candidates. Maximal degree in co-relation 20339. Up to 2211 conditions per place. [2025-02-06 04:27:33,359 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 211 selfloop transitions, 60 changer transitions 136/416 dead transitions. [2025-02-06 04:27:33,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 416 transitions, 4071 flow [2025-02-06 04:27:33,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-06 04:27:33,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-02-06 04:27:33,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 416 transitions. [2025-02-06 04:27:33,362 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42105263157894735 [2025-02-06 04:27:33,362 INFO L175 Difference]: Start difference. First operand has 94 places, 93 transitions, 802 flow. Second operand 19 states and 416 transitions. [2025-02-06 04:27:33,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 416 transitions, 4071 flow [2025-02-06 04:27:33,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 416 transitions, 3984 flow, removed 15 selfloop flow, removed 4 redundant places. [2025-02-06 04:27:33,444 INFO L231 Difference]: Finished difference. Result has 119 places, 146 transitions, 1641 flow [2025-02-06 04:27:33,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=785, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1641, PETRI_PLACES=119, PETRI_TRANSITIONS=146} [2025-02-06 04:27:33,445 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 74 predicate places. [2025-02-06 04:27:33,446 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 146 transitions, 1641 flow [2025-02-06 04:27:33,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:33,446 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:27:33,446 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] [2025-02-06 04:27:33,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 04:27:33,447 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)] === [2025-02-06 04:27:33,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:27:33,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1676966172, now seen corresponding path program 2 times [2025-02-06 04:27:33,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:27:33,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626742166] [2025-02-06 04:27:33,447 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 04:27:33,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:27:33,475 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:27:33,516 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:27:33,516 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 04:27:33,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:27:34,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:27:34,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:27:34,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626742166] [2025-02-06 04:27:34,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626742166] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:27:34,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:27:34,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 04:27:34,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429897042] [2025-02-06 04:27:34,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:27:34,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 04:27:34,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:27:34,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 04:27:34,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-02-06 04:27:34,556 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-02-06 04:27:34,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 146 transitions, 1641 flow. Second operand has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:34,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:27:34,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-02-06 04:27:34,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:27:36,668 INFO L124 PetriNetUnfolderBase]: 3472/6543 cut-off events. [2025-02-06 04:27:36,669 INFO L125 PetriNetUnfolderBase]: For 29367/29391 co-relation queries the response was YES. [2025-02-06 04:27:36,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28048 conditions, 6543 events. 3472/6543 cut-off events. For 29367/29391 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 48360 event pairs, 261 based on Foata normal form. 30/6573 useless extension candidates. Maximal degree in co-relation 27909. Up to 1376 conditions per place. [2025-02-06 04:27:36,709 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 226 selfloop transitions, 78 changer transitions 120/435 dead transitions. [2025-02-06 04:27:36,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 435 transitions, 5043 flow [2025-02-06 04:27:36,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 04:27:36,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 04:27:36,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 402 transitions. [2025-02-06 04:27:36,714 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42948717948717946 [2025-02-06 04:27:36,714 INFO L175 Difference]: Start difference. First operand has 119 places, 146 transitions, 1641 flow. Second operand 18 states and 402 transitions. [2025-02-06 04:27:36,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 435 transitions, 5043 flow [2025-02-06 04:27:36,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 435 transitions, 4950 flow, removed 33 selfloop flow, removed 3 redundant places. [2025-02-06 04:27:36,850 INFO L231 Difference]: Finished difference. Result has 138 places, 162 transitions, 2060 flow [2025-02-06 04:27:36,851 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1608, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2060, PETRI_PLACES=138, PETRI_TRANSITIONS=162} [2025-02-06 04:27:36,852 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 93 predicate places. [2025-02-06 04:27:36,852 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 162 transitions, 2060 flow [2025-02-06 04:27:36,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:36,853 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:27:36,853 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] [2025-02-06 04:27:36,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 04:27:36,853 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)] === [2025-02-06 04:27:36,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:27:36,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1314888778, now seen corresponding path program 2 times [2025-02-06 04:27:36,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:27:36,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227140312] [2025-02-06 04:27:36,854 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 04:27:36,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:27:36,878 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:27:36,908 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:27:36,909 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 04:27:36,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:27:37,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:27:37,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:27:37,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227140312] [2025-02-06 04:27:37,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227140312] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:27:37,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:27:37,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 04:27:37,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493030317] [2025-02-06 04:27:37,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:27:37,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 04:27:37,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:27:37,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 04:27:37,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-02-06 04:27:37,569 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-02-06 04:27:37,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 162 transitions, 2060 flow. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:37,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:27:37,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-02-06 04:27:37,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:27:39,009 INFO L124 PetriNetUnfolderBase]: 3296/6276 cut-off events. [2025-02-06 04:27:39,010 INFO L125 PetriNetUnfolderBase]: For 35927/35939 co-relation queries the response was YES. [2025-02-06 04:27:39,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28972 conditions, 6276 events. 3296/6276 cut-off events. For 35927/35939 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 45897 event pairs, 348 based on Foata normal form. 17/6293 useless extension candidates. Maximal degree in co-relation 28605. Up to 1348 conditions per place. [2025-02-06 04:27:39,056 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 206 selfloop transitions, 136 changer transitions 101/452 dead transitions. [2025-02-06 04:27:39,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 452 transitions, 5646 flow [2025-02-06 04:27:39,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-02-06 04:27:39,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2025-02-06 04:27:39,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 506 transitions. [2025-02-06 04:27:39,118 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3892307692307692 [2025-02-06 04:27:39,118 INFO L175 Difference]: Start difference. First operand has 138 places, 162 transitions, 2060 flow. Second operand 25 states and 506 transitions. [2025-02-06 04:27:39,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 452 transitions, 5646 flow [2025-02-06 04:27:39,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 452 transitions, 5272 flow, removed 55 selfloop flow, removed 10 redundant places. [2025-02-06 04:27:39,269 INFO L231 Difference]: Finished difference. Result has 164 places, 218 transitions, 3107 flow [2025-02-06 04:27:39,269 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1903, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=3107, PETRI_PLACES=164, PETRI_TRANSITIONS=218} [2025-02-06 04:27:39,270 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 119 predicate places. [2025-02-06 04:27:39,270 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 218 transitions, 3107 flow [2025-02-06 04:27:39,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:39,271 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:27:39,271 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] [2025-02-06 04:27:39,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 04:27:39,271 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)] === [2025-02-06 04:27:39,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:27:39,272 INFO L85 PathProgramCache]: Analyzing trace with hash -880256088, now seen corresponding path program 3 times [2025-02-06 04:27:39,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:27:39,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718044355] [2025-02-06 04:27:39,272 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 04:27:39,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:27:39,351 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:27:39,410 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:27:39,410 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 04:27:39,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:27:40,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:27:40,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:27:40,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718044355] [2025-02-06 04:27:40,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718044355] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:27:40,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:27:40,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 04:27:40,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837898743] [2025-02-06 04:27:40,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:27:40,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 04:27:40,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:27:40,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 04:27:40,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-02-06 04:27:40,514 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-02-06 04:27:40,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 218 transitions, 3107 flow. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:40,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:27:40,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-02-06 04:27:40,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:27:42,062 INFO L124 PetriNetUnfolderBase]: 3050/5793 cut-off events. [2025-02-06 04:27:42,062 INFO L125 PetriNetUnfolderBase]: For 43074/43130 co-relation queries the response was YES. [2025-02-06 04:27:42,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28324 conditions, 5793 events. 3050/5793 cut-off events. For 43074/43130 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 41661 event pairs, 348 based on Foata normal form. 60/5853 useless extension candidates. Maximal degree in co-relation 28139. Up to 1278 conditions per place. [2025-02-06 04:27:42,092 INFO L140 encePairwiseOnDemand]: 35/52 looper letters, 223 selfloop transitions, 129 changer transitions 85/447 dead transitions. [2025-02-06 04:27:42,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 447 transitions, 6159 flow [2025-02-06 04:27:42,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 04:27:42,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 04:27:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 412 transitions. [2025-02-06 04:27:42,094 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44017094017094016 [2025-02-06 04:27:42,094 INFO L175 Difference]: Start difference. First operand has 164 places, 218 transitions, 3107 flow. Second operand 18 states and 412 transitions. [2025-02-06 04:27:42,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 447 transitions, 6159 flow [2025-02-06 04:27:42,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 447 transitions, 5833 flow, removed 134 selfloop flow, removed 8 redundant places. [2025-02-06 04:27:42,253 INFO L231 Difference]: Finished difference. Result has 180 places, 240 transitions, 3591 flow [2025-02-06 04:27:42,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=2911, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3591, PETRI_PLACES=180, PETRI_TRANSITIONS=240} [2025-02-06 04:27:42,254 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 135 predicate places. [2025-02-06 04:27:42,254 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 240 transitions, 3591 flow [2025-02-06 04:27:42,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:42,254 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:27:42,254 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] [2025-02-06 04:27:42,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 04:27:42,255 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)] === [2025-02-06 04:27:42,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:27:42,255 INFO L85 PathProgramCache]: Analyzing trace with hash -2033347070, now seen corresponding path program 3 times [2025-02-06 04:27:42,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:27:42,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19433083] [2025-02-06 04:27:42,255 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 04:27:42,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:27:42,279 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:27:42,302 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:27:42,302 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 04:27:42,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:27:43,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:27:43,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:27:43,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19433083] [2025-02-06 04:27:43,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19433083] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:27:43,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:27:43,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-06 04:27:43,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159270322] [2025-02-06 04:27:43,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:27:43,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 04:27:43,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:27:43,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 04:27:43,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-02-06 04:27:43,548 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-02-06 04:27:43,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 240 transitions, 3591 flow. Second operand has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:43,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:27:43,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-02-06 04:27:43,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:27:45,637 INFO L124 PetriNetUnfolderBase]: 3070/5894 cut-off events. [2025-02-06 04:27:45,637 INFO L125 PetriNetUnfolderBase]: For 51839/51863 co-relation queries the response was YES. [2025-02-06 04:27:45,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30008 conditions, 5894 events. 3070/5894 cut-off events. For 51839/51863 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 42802 event pairs, 132 based on Foata normal form. 31/5925 useless extension candidates. Maximal degree in co-relation 29591. Up to 1953 conditions per place. [2025-02-06 04:27:45,680 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 213 selfloop transitions, 185 changer transitions 67/474 dead transitions. [2025-02-06 04:27:45,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 474 transitions, 7176 flow [2025-02-06 04:27:45,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-06 04:27:45,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-02-06 04:27:45,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 335 transitions. [2025-02-06 04:27:45,684 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4026442307692308 [2025-02-06 04:27:45,684 INFO L175 Difference]: Start difference. First operand has 180 places, 240 transitions, 3591 flow. Second operand 16 states and 335 transitions. [2025-02-06 04:27:45,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 474 transitions, 7176 flow [2025-02-06 04:27:45,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 474 transitions, 6801 flow, removed 133 selfloop flow, removed 8 redundant places. [2025-02-06 04:27:45,948 INFO L231 Difference]: Finished difference. Result has 197 places, 314 transitions, 5211 flow [2025-02-06 04:27:45,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=3372, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=5211, PETRI_PLACES=197, PETRI_TRANSITIONS=314} [2025-02-06 04:27:45,949 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 152 predicate places. [2025-02-06 04:27:45,949 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 314 transitions, 5211 flow [2025-02-06 04:27:45,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:45,950 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:27:45,950 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] [2025-02-06 04:27:45,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 04:27:45,950 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)] === [2025-02-06 04:27:45,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:27:45,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1051491364, now seen corresponding path program 4 times [2025-02-06 04:27:45,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:27:45,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709603202] [2025-02-06 04:27:45,951 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 04:27:45,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:27:46,016 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-06 04:27:46,118 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:27:46,118 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 04:27:46,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:27:53,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:27:53,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:27:53,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709603202] [2025-02-06 04:27:53,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709603202] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:27:53,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:27:53,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2025-02-06 04:27:53,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509973770] [2025-02-06 04:27:53,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:27:53,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-06 04:27:53,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:27:53,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-06 04:27:53,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2025-02-06 04:27:53,389 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 52 [2025-02-06 04:27:53,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 314 transitions, 5211 flow. Second operand has 17 states, 17 states have (on average 10.294117647058824) internal successors, (175), 17 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:53,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:27:53,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 52 [2025-02-06 04:27:53,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:27:56,814 INFO L124 PetriNetUnfolderBase]: 3678/6910 cut-off events. [2025-02-06 04:27:56,814 INFO L125 PetriNetUnfolderBase]: For 77304/77354 co-relation queries the response was YES. [2025-02-06 04:27:56,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37504 conditions, 6910 events. 3678/6910 cut-off events. For 77304/77354 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 50270 event pairs, 412 based on Foata normal form. 46/6950 useless extension candidates. Maximal degree in co-relation 37325. Up to 2326 conditions per place. [2025-02-06 04:27:56,867 INFO L140 encePairwiseOnDemand]: 31/52 looper letters, 339 selfloop transitions, 196 changer transitions 59/608 dead transitions. [2025-02-06 04:27:56,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 608 transitions, 10186 flow [2025-02-06 04:27:56,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 04:27:56,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 04:27:56,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 436 transitions. [2025-02-06 04:27:56,870 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3992673992673993 [2025-02-06 04:27:56,870 INFO L175 Difference]: Start difference. First operand has 197 places, 314 transitions, 5211 flow. Second operand 21 states and 436 transitions. [2025-02-06 04:27:56,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 608 transitions, 10186 flow [2025-02-06 04:27:57,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 608 transitions, 9769 flow, removed 173 selfloop flow, removed 7 redundant places. [2025-02-06 04:27:57,371 INFO L231 Difference]: Finished difference. Result has 223 places, 402 transitions, 7335 flow [2025-02-06 04:27:57,372 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=5008, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=7335, PETRI_PLACES=223, PETRI_TRANSITIONS=402} [2025-02-06 04:27:57,373 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 178 predicate places. [2025-02-06 04:27:57,373 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 402 transitions, 7335 flow [2025-02-06 04:27:57,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.294117647058824) internal successors, (175), 17 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:57,373 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:27:57,373 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] [2025-02-06 04:27:57,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 04:27:57,373 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)] === [2025-02-06 04:27:57,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:27:57,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1043680066, now seen corresponding path program 5 times [2025-02-06 04:27:57,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:27:57,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337157571] [2025-02-06 04:27:57,379 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 04:27:57,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:27:57,430 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:27:57,463 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:27:57,463 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 04:27:57,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:27:58,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:27:58,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:27:58,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337157571] [2025-02-06 04:27:58,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337157571] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:27:58,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:27:58,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-06 04:27:58,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087641725] [2025-02-06 04:27:58,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:27:58,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 04:27:58,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:27:58,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 04:27:58,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-02-06 04:27:58,906 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-02-06 04:27:58,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 402 transitions, 7335 flow. Second operand has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:27:58,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:27:58,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-02-06 04:27:58,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:28:02,126 INFO L124 PetriNetUnfolderBase]: 3433/6605 cut-off events. [2025-02-06 04:28:02,126 INFO L125 PetriNetUnfolderBase]: For 84267/84317 co-relation queries the response was YES. [2025-02-06 04:28:02,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37796 conditions, 6605 events. 3433/6605 cut-off events. For 84267/84317 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 49315 event pairs, 331 based on Foata normal form. 68/6671 useless extension candidates. Maximal degree in co-relation 37337. Up to 1831 conditions per place. [2025-02-06 04:28:02,174 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 327 selfloop transitions, 239 changer transitions 76/657 dead transitions. [2025-02-06 04:28:02,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 657 transitions, 11801 flow [2025-02-06 04:28:02,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 04:28:02,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 04:28:02,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 430 transitions. [2025-02-06 04:28:02,176 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39377289377289376 [2025-02-06 04:28:02,176 INFO L175 Difference]: Start difference. First operand has 223 places, 402 transitions, 7335 flow. Second operand 21 states and 430 transitions. [2025-02-06 04:28:02,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 657 transitions, 11801 flow [2025-02-06 04:28:02,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 657 transitions, 11502 flow, removed 149 selfloop flow, removed 3 redundant places. [2025-02-06 04:28:02,606 INFO L231 Difference]: Finished difference. Result has 251 places, 442 transitions, 8689 flow [2025-02-06 04:28:02,607 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=7148, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=8689, PETRI_PLACES=251, PETRI_TRANSITIONS=442} [2025-02-06 04:28:02,607 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 206 predicate places. [2025-02-06 04:28:02,607 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 442 transitions, 8689 flow [2025-02-06 04:28:02,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:28:02,607 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:28:02,608 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] [2025-02-06 04:28:02,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 04:28:02,608 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)] === [2025-02-06 04:28:02,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:28:02,608 INFO L85 PathProgramCache]: Analyzing trace with hash -145665166, now seen corresponding path program 4 times [2025-02-06 04:28:02,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:28:02,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492140167] [2025-02-06 04:28:02,608 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 04:28:02,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:28:02,632 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-06 04:28:02,654 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:28:02,655 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 04:28:02,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:28:04,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:28:04,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:28:04,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492140167] [2025-02-06 04:28:04,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492140167] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:28:04,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:28:04,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2025-02-06 04:28:04,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056822450] [2025-02-06 04:28:04,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:28:04,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-06 04:28:04,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:28:04,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-06 04:28:04,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2025-02-06 04:28:04,347 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 52 [2025-02-06 04:28:04,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 442 transitions, 8689 flow. Second operand has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:28:04,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:28:04,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 52 [2025-02-06 04:28:04,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:28:07,913 INFO L124 PetriNetUnfolderBase]: 4899/9138 cut-off events. [2025-02-06 04:28:07,913 INFO L125 PetriNetUnfolderBase]: For 148399/148437 co-relation queries the response was YES. [2025-02-06 04:28:07,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55867 conditions, 9138 events. 4899/9138 cut-off events. For 148399/148437 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 69514 event pairs, 468 based on Foata normal form. 31/9165 useless extension candidates. Maximal degree in co-relation 55373. Up to 2350 conditions per place. [2025-02-06 04:28:07,992 INFO L140 encePairwiseOnDemand]: 30/52 looper letters, 429 selfloop transitions, 322 changer transitions 35/800 dead transitions. [2025-02-06 04:28:07,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 800 transitions, 16159 flow [2025-02-06 04:28:07,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 04:28:07,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-02-06 04:28:07,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 430 transitions. [2025-02-06 04:28:07,994 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41346153846153844 [2025-02-06 04:28:07,994 INFO L175 Difference]: Start difference. First operand has 251 places, 442 transitions, 8689 flow. Second operand 20 states and 430 transitions. [2025-02-06 04:28:07,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 800 transitions, 16159 flow [2025-02-06 04:28:08,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 800 transitions, 15745 flow, removed 123 selfloop flow, removed 9 redundant places. [2025-02-06 04:28:08,991 INFO L231 Difference]: Finished difference. Result has 269 places, 587 transitions, 12994 flow [2025-02-06 04:28:08,992 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=8504, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=12994, PETRI_PLACES=269, PETRI_TRANSITIONS=587} [2025-02-06 04:28:08,992 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 224 predicate places. [2025-02-06 04:28:08,992 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 587 transitions, 12994 flow [2025-02-06 04:28:08,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:28:08,993 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:28:08,993 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] [2025-02-06 04:28:08,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 04:28:08,993 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-06 04:28:08,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:28:08,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1731641976, now seen corresponding path program 5 times [2025-02-06 04:28:08,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:28:08,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576219486] [2025-02-06 04:28:08,994 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 04:28:08,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:28:09,037 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:28:09,068 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:28:09,068 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 04:28:09,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:28:10,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:28:10,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:28:10,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576219486] [2025-02-06 04:28:10,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576219486] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:28:10,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:28:10,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-06 04:28:10,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535326083] [2025-02-06 04:28:10,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:28:10,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 04:28:10,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:28:10,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 04:28:10,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-02-06 04:28:10,251 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-02-06 04:28:10,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 587 transitions, 12994 flow. Second operand has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:28:10,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:28:10,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-02-06 04:28:10,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:28:13,062 INFO L124 PetriNetUnfolderBase]: 4647/8770 cut-off events. [2025-02-06 04:28:13,062 INFO L125 PetriNetUnfolderBase]: For 166634/166706 co-relation queries the response was YES. [2025-02-06 04:28:13,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56879 conditions, 8770 events. 4647/8770 cut-off events. For 166634/166706 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 67941 event pairs, 269 based on Foata normal form. 65/8827 useless extension candidates. Maximal degree in co-relation 56384. Up to 2563 conditions per place. [2025-02-06 04:28:13,159 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 311 selfloop transitions, 367 changer transitions 60/754 dead transitions. [2025-02-06 04:28:13,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 754 transitions, 16507 flow [2025-02-06 04:28:13,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 04:28:13,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 04:28:13,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 363 transitions. [2025-02-06 04:28:13,162 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38782051282051283 [2025-02-06 04:28:13,162 INFO L175 Difference]: Start difference. First operand has 269 places, 587 transitions, 12994 flow. Second operand 18 states and 363 transitions. [2025-02-06 04:28:13,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 754 transitions, 16507 flow [2025-02-06 04:28:14,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 754 transitions, 16208 flow, removed 122 selfloop flow, removed 5 redundant places. [2025-02-06 04:28:14,398 INFO L231 Difference]: Finished difference. Result has 286 places, 595 transitions, 13862 flow [2025-02-06 04:28:14,398 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=12731, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=587, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=349, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=13862, PETRI_PLACES=286, PETRI_TRANSITIONS=595} [2025-02-06 04:28:14,399 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 241 predicate places. [2025-02-06 04:28:14,399 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 595 transitions, 13862 flow [2025-02-06 04:28:14,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:28:14,399 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:28:14,399 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] [2025-02-06 04:28:14,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 04:28:14,400 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-06 04:28:14,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:28:14,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1019227546, now seen corresponding path program 6 times [2025-02-06 04:28:14,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:28:14,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414324570] [2025-02-06 04:28:14,400 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 04:28:14,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:28:14,458 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:28:14,555 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:28:14,556 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 04:28:14,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:28:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:28:16,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:28:16,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414324570] [2025-02-06 04:28:16,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414324570] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:28:16,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:28:16,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-02-06 04:28:16,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228918510] [2025-02-06 04:28:16,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:28:16,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 04:28:16,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:28:16,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 04:28:16,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2025-02-06 04:28:16,968 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 52 [2025-02-06 04:28:16,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 595 transitions, 13862 flow. Second operand has 18 states, 18 states have (on average 10.222222222222221) internal successors, (184), 18 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:28:16,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:28:16,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 52 [2025-02-06 04:28:16,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:28:21,895 INFO L124 PetriNetUnfolderBase]: 5931/11003 cut-off events. [2025-02-06 04:28:21,895 INFO L125 PetriNetUnfolderBase]: For 235177/235243 co-relation queries the response was YES. [2025-02-06 04:28:22,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73608 conditions, 11003 events. 5931/11003 cut-off events. For 235177/235243 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 86400 event pairs, 603 based on Foata normal form. 80/11083 useless extension candidates. Maximal degree in co-relation 73225. Up to 2230 conditions per place. [2025-02-06 04:28:22,055 INFO L140 encePairwiseOnDemand]: 30/52 looper letters, 527 selfloop transitions, 420 changer transitions 51/1014 dead transitions. [2025-02-06 04:28:22,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 1014 transitions, 23889 flow [2025-02-06 04:28:22,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-06 04:28:22,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-02-06 04:28:22,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 451 transitions. [2025-02-06 04:28:22,056 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3942307692307692 [2025-02-06 04:28:22,056 INFO L175 Difference]: Start difference. First operand has 286 places, 595 transitions, 13862 flow. Second operand 22 states and 451 transitions. [2025-02-06 04:28:22,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 1014 transitions, 23889 flow [2025-02-06 04:28:24,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 1014 transitions, 23426 flow, removed 61 selfloop flow, removed 10 redundant places. [2025-02-06 04:28:24,057 INFO L231 Difference]: Finished difference. Result has 308 places, 763 transitions, 19601 flow [2025-02-06 04:28:24,057 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=13583, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=595, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=255, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=19601, PETRI_PLACES=308, PETRI_TRANSITIONS=763} [2025-02-06 04:28:24,058 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 263 predicate places. [2025-02-06 04:28:24,058 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 763 transitions, 19601 flow [2025-02-06 04:28:24,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.222222222222221) internal successors, (184), 18 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:28:24,058 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:28:24,058 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] [2025-02-06 04:28:24,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 04:28:24,058 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)] === [2025-02-06 04:28:24,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:28:24,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1762198184, now seen corresponding path program 6 times [2025-02-06 04:28:24,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:28:24,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459340553] [2025-02-06 04:28:24,059 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 04:28:24,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:28:24,082 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:28:24,117 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:28:24,117 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 04:28:24,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:28:25,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:28:25,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:28:25,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459340553] [2025-02-06 04:28:25,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459340553] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:28:25,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:28:25,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-06 04:28:25,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508959584] [2025-02-06 04:28:25,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:28:25,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 04:28:25,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:28:25,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 04:28:25,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-02-06 04:28:25,248 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-02-06 04:28:25,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 763 transitions, 19601 flow. Second operand has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:28:25,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:28:25,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-02-06 04:28:25,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:28:28,970 INFO L124 PetriNetUnfolderBase]: 5914/11055 cut-off events. [2025-02-06 04:28:28,970 INFO L125 PetriNetUnfolderBase]: For 278236/278320 co-relation queries the response was YES. [2025-02-06 04:28:29,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78478 conditions, 11055 events. 5914/11055 cut-off events. For 278236/278320 co-relation queries the response was YES. Maximal size of possible extension queue 604. Compared 88107 event pairs, 345 based on Foata normal form. 49/11094 useless extension candidates. Maximal degree in co-relation 77941. Up to 3104 conditions per place. [2025-02-06 04:28:29,117 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 362 selfloop transitions, 528 changer transitions 41/950 dead transitions. [2025-02-06 04:28:29,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 950 transitions, 24110 flow [2025-02-06 04:28:29,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 04:28:29,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-02-06 04:28:29,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 398 transitions. [2025-02-06 04:28:29,118 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38269230769230766 [2025-02-06 04:28:29,118 INFO L175 Difference]: Start difference. First operand has 308 places, 763 transitions, 19601 flow. Second operand 20 states and 398 transitions. [2025-02-06 04:28:29,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 950 transitions, 24110 flow [2025-02-06 04:28:31,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 950 transitions, 23456 flow, removed 71 selfloop flow, removed 12 redundant places. [2025-02-06 04:28:31,417 INFO L231 Difference]: Finished difference. Result has 320 places, 802 transitions, 21278 flow [2025-02-06 04:28:31,417 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=19028, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=763, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=489, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=21278, PETRI_PLACES=320, PETRI_TRANSITIONS=802} [2025-02-06 04:28:31,418 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 275 predicate places. [2025-02-06 04:28:31,418 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 802 transitions, 21278 flow [2025-02-06 04:28:31,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:28:31,418 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:28:31,418 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] [2025-02-06 04:28:31,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-06 04:28:31,418 INFO L396 AbstractCegarLoop]: === Iteration 16 === 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)] === [2025-02-06 04:28:31,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:28:31,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1632531382, now seen corresponding path program 7 times [2025-02-06 04:28:31,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:28:31,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700026107] [2025-02-06 04:28:31,419 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 04:28:31,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:28:31,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:28:31,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:28:31,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:28:31,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:28:32,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:28:32,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:28:32,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700026107] [2025-02-06 04:28:32,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700026107] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:28:32,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:28:32,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-06 04:28:32,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479288721] [2025-02-06 04:28:32,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:28:32,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 04:28:32,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:28:32,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 04:28:32,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-02-06 04:28:32,866 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-02-06 04:28:32,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 802 transitions, 21278 flow. Second operand has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:28:32,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:28:32,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-02-06 04:28:32,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:28:36,955 INFO L124 PetriNetUnfolderBase]: 5858/10953 cut-off events. [2025-02-06 04:28:36,955 INFO L125 PetriNetUnfolderBase]: For 291181/291265 co-relation queries the response was YES. [2025-02-06 04:28:37,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78949 conditions, 10953 events. 5858/10953 cut-off events. For 291181/291265 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 87195 event pairs, 395 based on Foata normal form. 51/10996 useless extension candidates. Maximal degree in co-relation 78424. Up to 2607 conditions per place. [2025-02-06 04:28:37,088 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 335 selfloop transitions, 561 changer transitions 51/965 dead transitions. [2025-02-06 04:28:37,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 965 transitions, 25054 flow [2025-02-06 04:28:37,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 04:28:37,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-02-06 04:28:37,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 403 transitions. [2025-02-06 04:28:37,091 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3875 [2025-02-06 04:28:37,091 INFO L175 Difference]: Start difference. First operand has 320 places, 802 transitions, 21278 flow. Second operand 20 states and 403 transitions. [2025-02-06 04:28:37,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 965 transitions, 25054 flow [2025-02-06 04:28:39,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 965 transitions, 24021 flow, removed 74 selfloop flow, removed 13 redundant places. [2025-02-06 04:28:39,334 INFO L231 Difference]: Finished difference. Result has 328 places, 822 transitions, 21941 flow [2025-02-06 04:28:39,334 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=20344, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=802, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=530, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=21941, PETRI_PLACES=328, PETRI_TRANSITIONS=822} [2025-02-06 04:28:39,335 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 283 predicate places. [2025-02-06 04:28:39,335 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 822 transitions, 21941 flow [2025-02-06 04:28:39,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:28:39,335 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:28:39,335 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] [2025-02-06 04:28:39,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-06 04:28:39,335 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-06 04:28:39,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:28:39,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1527821340, now seen corresponding path program 8 times [2025-02-06 04:28:39,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:28:39,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417141603] [2025-02-06 04:28:39,336 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 04:28:39,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:28:39,359 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:28:39,381 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:28:39,381 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 04:28:39,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:28:40,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:28:40,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:28:40,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417141603] [2025-02-06 04:28:40,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417141603] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:28:40,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:28:40,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-06 04:28:40,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110724262] [2025-02-06 04:28:40,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:28:40,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 04:28:40,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:28:40,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 04:28:40,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-02-06 04:28:40,458 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-02-06 04:28:40,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 822 transitions, 21941 flow. Second operand has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:28:40,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:28:40,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-02-06 04:28:40,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand