./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd --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-dev-826ab2b [2024-11-13 14:33:46,265 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:33:46,362 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:33:46,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:33:46,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:33:46,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:33:46,408 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:33:46,409 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:33:46,409 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:33:46,409 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:33:46,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:33:46,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:33:46,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:33:46,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:33:46,410 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:33:46,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:33:46,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:33:46,411 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:33:46,412 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:33:46,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:33:46,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:33:46,413 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:33:46,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:33:46,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:33:46,413 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:33:46,413 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:33:46,413 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:33:46,414 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:33:46,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:33:46,414 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:33:46,414 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:33:46,414 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:33:46,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:33:46,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:33:46,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:33:46,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:33:46,415 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:33:46,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:33:46,415 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:33:46,415 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:33:46,415 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:33:46,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:33:46,416 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd 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 [2024-11-13 14:33:46,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:33:46,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:33:46,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:33:46,751 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:33:46,751 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:33:46,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i Unable to find full path for "g++" [2024-11-13 14:33:48,657 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:33:49,348 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:33:49,349 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-11-13 14:33:49,414 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/data/bcac5ac07/178979fa195c40259bf48b43c1eea64a/FLAG09b3862dc [2024-11-13 14:33:49,442 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/data/bcac5ac07/178979fa195c40259bf48b43c1eea64a [2024-11-13 14:33:49,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:33:49,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:33:49,448 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:33:49,448 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:33:49,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:33:49,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:33:49" (1/1) ... [2024-11-13 14:33:49,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@233c191a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:49, skipping insertion in model container [2024-11-13 14:33:49,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:33:49" (1/1) ... [2024-11-13 14:33:49,591 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:33:50,009 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2024-11-13 14:33:54,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:33:54,856 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:33:54,870 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2024-11-13 14:33:55,034 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] [2024-11-13 14:33:55,036 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] [2024-11-13 14:33:55,037 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] [2024-11-13 14:33:55,037 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] [2024-11-13 14:33:55,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2024-11-13 14:33:55,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:33:56,097 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:33:56,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:56 WrapperNode [2024-11-13 14:33:56,098 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:33:56,099 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:33:56,099 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:33:56,099 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:33:56,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:56" (1/1) ... [2024-11-13 14:33:56,188 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:56" (1/1) ... [2024-11-13 14:33:56,270 INFO L138 Inliner]: procedures = 1354, calls = 1479, calls flagged for inlining = 352, calls inlined = 18, statements flattened = 400 [2024-11-13 14:33:56,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:33:56,272 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:33:56,272 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:33:56,272 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:33:56,282 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:56" (1/1) ... [2024-11-13 14:33:56,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:56" (1/1) ... [2024-11-13 14:33:56,290 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:56" (1/1) ... [2024-11-13 14:33:56,331 INFO L175 MemorySlicer]: Split 52 memory accesses to 7 slices as follows [2, 9, 1, 4, 2, 31, 3]. 60 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 0, 1, 4, 2, 31, 3]. The 3 writes are split as follows [0, 3, 0, 0, 0, 0, 0]. [2024-11-13 14:33:56,332 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:56" (1/1) ... [2024-11-13 14:33:56,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:56" (1/1) ... [2024-11-13 14:33:56,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:56" (1/1) ... [2024-11-13 14:33:56,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:56" (1/1) ... [2024-11-13 14:33:56,395 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:56" (1/1) ... [2024-11-13 14:33:56,398 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:56" (1/1) ... [2024-11-13 14:33:56,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:33:56,416 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:33:56,416 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:33:56,416 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:33:56,417 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:56" (1/1) ... [2024-11-13 14:33:56,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:33:56,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:33:56,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:33:56,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:33:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 14:33:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 14:33:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 14:33:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 14:33:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-13 14:33:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-13 14:33:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-13 14:33:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 14:33:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:33:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:33:56,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:33:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 14:33:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 14:33:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 14:33:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 14:33:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-13 14:33:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-13 14:33:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-13 14:33:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2024-11-13 14:33:56,497 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2024-11-13 14:33:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 14:33:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 14:33:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 14:33:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 14:33:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 14:33:56,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-13 14:33:56,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-13 14:33:56,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-13 14:33:56,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-13 14:33:56,498 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2024-11-13 14:33:56,498 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2024-11-13 14:33:56,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:33:56,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 14:33:56,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 14:33:56,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 14:33:56,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 14:33:56,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 14:33:56,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-13 14:33:56,501 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 14:33:57,131 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:33:57,133 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:33:57,882 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 14:33:57,883 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:33:58,799 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:33:58,807 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 14:33:58,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:33:58 BoogieIcfgContainer [2024-11-13 14:33:58,808 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:33:58,810 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:33:58,810 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:33:58,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:33:58,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:33:49" (1/3) ... [2024-11-13 14:33:58,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698de5df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:33:58, skipping insertion in model container [2024-11-13 14:33:58,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:56" (2/3) ... [2024-11-13 14:33:58,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698de5df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:33:58, skipping insertion in model container [2024-11-13 14:33:58,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:33:58" (3/3) ... [2024-11-13 14:33:58,824 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2024-11-13 14:33:58,843 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:33:58,846 INFO L154 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. [2024-11-13 14:33:58,846 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 14:33:58,950 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 14:33:58,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 52 transitions, 118 flow [2024-11-13 14:33:59,043 INFO L124 PetriNetUnfolderBase]: 10/50 cut-off events. [2024-11-13 14:33:59,046 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-13 14:33:59,050 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. [2024-11-13 14:33:59,050 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 52 transitions, 118 flow [2024-11-13 14:33:59,054 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 48 transitions, 105 flow [2024-11-13 14:33:59,065 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:33:59,084 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;@35112e12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:33:59,084 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-13 14:33:59,117 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 14:33:59,118 INFO L124 PetriNetUnfolderBase]: 8/42 cut-off events. [2024-11-13 14:33:59,118 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 14:33:59,118 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:33:59,119 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:33:59,119 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)] === [2024-11-13 14:33:59,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:59,127 INFO L85 PathProgramCache]: Analyzing trace with hash -279193664, now seen corresponding path program 1 times [2024-11-13 14:33:59,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:59,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736619431] [2024-11-13 14:33:59,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:59,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:02,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:34:02,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:02,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736619431] [2024-11-13 14:34:02,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736619431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:02,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:02,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:34:02,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597639674] [2024-11-13 14:34:02,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:02,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:34:02,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:02,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:34:02,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:34:02,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 52 [2024-11-13 14:34:02,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 105 flow. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 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) [2024-11-13 14:34:02,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:34:02,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 52 [2024-11-13 14:34:02,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:34:04,665 INFO L124 PetriNetUnfolderBase]: 1623/2722 cut-off events. [2024-11-13 14:34:04,665 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-13 14:34:04,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5285 conditions, 2722 events. 1623/2722 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 13888 event pairs, 264 based on Foata normal form. 123/2385 useless extension candidates. Maximal degree in co-relation 5202. Up to 775 conditions per place. [2024-11-13 14:34:04,694 INFO L140 encePairwiseOnDemand]: 38/52 looper letters, 132 selfloop transitions, 27 changer transitions 19/185 dead transitions. [2024-11-13 14:34:04,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 185 transitions, 750 flow [2024-11-13 14:34:04,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:34:04,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 14:34:04,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 281 transitions. [2024-11-13 14:34:04,713 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5403846153846154 [2024-11-13 14:34:04,715 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 105 flow. Second operand 10 states and 281 transitions. [2024-11-13 14:34:04,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 185 transitions, 750 flow [2024-11-13 14:34:04,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 185 transitions, 740 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 14:34:04,730 INFO L231 Difference]: Finished difference. Result has 58 places, 70 transitions, 274 flow [2024-11-13 14:34:04,733 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=274, PETRI_PLACES=58, PETRI_TRANSITIONS=70} [2024-11-13 14:34:04,736 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 13 predicate places. [2024-11-13 14:34:04,736 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 70 transitions, 274 flow [2024-11-13 14:34:04,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 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) [2024-11-13 14:34:04,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:34:04,737 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:04,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:34:04,737 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 14:34:04,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:04,738 INFO L85 PathProgramCache]: Analyzing trace with hash -468879613, now seen corresponding path program 1 times [2024-11-13 14:34:04,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:04,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463666481] [2024-11-13 14:34:04,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:04,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:07,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:34:07,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:07,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463666481] [2024-11-13 14:34:07,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463666481] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:34:07,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856514166] [2024-11-13 14:34:07,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:07,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:34:07,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:34:07,442 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:34:07,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:34:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:08,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:34:08,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:34:08,296 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 [2024-11-13 14:34:08,373 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 [2024-11-13 14:34:08,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 14:34:08,506 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:34:08,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856514166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:08,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:34:08,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-11-13 14:34:08,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019095838] [2024-11-13 14:34:08,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:08,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:34:08,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:08,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:34:08,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:34:08,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2024-11-13 14:34:08,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 70 transitions, 274 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:08,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:34:08,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2024-11-13 14:34:08,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:34:09,755 INFO L124 PetriNetUnfolderBase]: 1572/2748 cut-off events. [2024-11-13 14:34:09,755 INFO L125 PetriNetUnfolderBase]: For 1098/1098 co-relation queries the response was YES. [2024-11-13 14:34:09,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6685 conditions, 2748 events. 1572/2748 cut-off events. For 1098/1098 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 14684 event pairs, 669 based on Foata normal form. 38/2438 useless extension candidates. Maximal degree in co-relation 6480. Up to 1645 conditions per place. [2024-11-13 14:34:09,775 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 90 selfloop transitions, 25 changer transitions 18/143 dead transitions. [2024-11-13 14:34:09,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 143 transitions, 735 flow [2024-11-13 14:34:09,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:34:09,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 14:34:09,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 181 transitions. [2024-11-13 14:34:09,779 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49725274725274726 [2024-11-13 14:34:09,779 INFO L175 Difference]: Start difference. First operand has 58 places, 70 transitions, 274 flow. Second operand 7 states and 181 transitions. [2024-11-13 14:34:09,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 143 transitions, 735 flow [2024-11-13 14:34:09,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 143 transitions, 735 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 14:34:09,811 INFO L231 Difference]: Finished difference. Result has 69 places, 79 transitions, 448 flow [2024-11-13 14:34:09,811 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=448, PETRI_PLACES=69, PETRI_TRANSITIONS=79} [2024-11-13 14:34:09,812 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 24 predicate places. [2024-11-13 14:34:09,812 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 79 transitions, 448 flow [2024-11-13 14:34:09,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:09,812 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:34:09,812 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:09,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:34:10,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42165a35-55a7-434d-8f8a-713af0757b23/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:34:10,013 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)] === [2024-11-13 14:34:10,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:10,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1449675972, now seen corresponding path program 1 times [2024-11-13 14:34:10,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:10,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597004592] [2024-11-13 14:34:10,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:10,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:11,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:34:11,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:11,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597004592] [2024-11-13 14:34:11,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597004592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:11,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:11,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 14:34:11,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346403688] [2024-11-13 14:34:11,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:11,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:34:11,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:11,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:34:11,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:34:11,523 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 52 [2024-11-13 14:34:11,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 79 transitions, 448 flow. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:11,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:34:11,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 52 [2024-11-13 14:34:11,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:34:13,904 INFO L124 PetriNetUnfolderBase]: 3223/5491 cut-off events. [2024-11-13 14:34:13,904 INFO L125 PetriNetUnfolderBase]: For 7798/7808 co-relation queries the response was YES. [2024-11-13 14:34:13,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16269 conditions, 5491 events. 3223/5491 cut-off events. For 7798/7808 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 33335 event pairs, 377 based on Foata normal form. 0/5038 useless extension candidates. Maximal degree in co-relation 15800. Up to 1554 conditions per place. [2024-11-13 14:34:13,941 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 210 selfloop transitions, 39 changer transitions 145/404 dead transitions. [2024-11-13 14:34:13,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 404 transitions, 3351 flow [2024-11-13 14:34:13,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:34:13,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 14:34:13,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 321 transitions. [2024-11-13 14:34:13,945 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47485207100591714 [2024-11-13 14:34:13,945 INFO L175 Difference]: Start difference. First operand has 69 places, 79 transitions, 448 flow. Second operand 13 states and 321 transitions. [2024-11-13 14:34:13,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 404 transitions, 3351 flow [2024-11-13 14:34:14,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 404 transitions, 3227 flow, removed 24 selfloop flow, removed 3 redundant places. [2024-11-13 14:34:14,053 INFO L231 Difference]: Finished difference. Result has 86 places, 114 transitions, 871 flow [2024-11-13 14:34:14,053 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=871, PETRI_PLACES=86, PETRI_TRANSITIONS=114} [2024-11-13 14:34:14,054 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 41 predicate places. [2024-11-13 14:34:14,054 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 114 transitions, 871 flow [2024-11-13 14:34:14,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:14,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:34:14,055 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:14,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:34:14,055 INFO L396 AbstractCegarLoop]: === Iteration 4 === 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)] === [2024-11-13 14:34:14,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:14,056 INFO L85 PathProgramCache]: Analyzing trace with hash -908450402, now seen corresponding path program 1 times [2024-11-13 14:34:14,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:14,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070421454] [2024-11-13 14:34:14,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:14,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 14:34:14,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:14,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070421454] [2024-11-13 14:34:14,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070421454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:14,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:14,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:34:14,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503604890] [2024-11-13 14:34:14,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:14,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:34:14,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:14,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:34:14,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:34:14,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 52 [2024-11-13 14:34:14,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 114 transitions, 871 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:14,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:34:14,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 52 [2024-11-13 14:34:14,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:34:15,982 INFO L124 PetriNetUnfolderBase]: 2681/4627 cut-off events. [2024-11-13 14:34:15,982 INFO L125 PetriNetUnfolderBase]: For 8225/8229 co-relation queries the response was YES. [2024-11-13 14:34:15,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15916 conditions, 4627 events. 2681/4627 cut-off events. For 8225/8229 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 27311 event pairs, 911 based on Foata normal form. 90/4403 useless extension candidates. Maximal degree in co-relation 15440. Up to 1976 conditions per place. [2024-11-13 14:34:16,010 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 99 selfloop transitions, 32 changer transitions 121/261 dead transitions. [2024-11-13 14:34:16,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 261 transitions, 2260 flow [2024-11-13 14:34:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:34:16,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 14:34:16,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 202 transitions. [2024-11-13 14:34:16,012 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4855769230769231 [2024-11-13 14:34:16,012 INFO L175 Difference]: Start difference. First operand has 86 places, 114 transitions, 871 flow. Second operand 8 states and 202 transitions. [2024-11-13 14:34:16,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 261 transitions, 2260 flow [2024-11-13 14:34:16,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 261 transitions, 2258 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-13 14:34:16,105 INFO L231 Difference]: Finished difference. Result has 95 places, 89 transitions, 779 flow [2024-11-13 14:34:16,105 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=779, PETRI_PLACES=95, PETRI_TRANSITIONS=89} [2024-11-13 14:34:16,107 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 50 predicate places. [2024-11-13 14:34:16,107 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 89 transitions, 779 flow [2024-11-13 14:34:16,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:16,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:34:16,107 INFO L204 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] [2024-11-13 14:34:16,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:34:16,107 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 14:34:16,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:16,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1241143735, now seen corresponding path program 1 times [2024-11-13 14:34:16,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:16,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427784980] [2024-11-13 14:34:16,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:16,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:19,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:34:19,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:19,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427784980] [2024-11-13 14:34:19,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427784980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:19,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:19,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-13 14:34:19,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488371295] [2024-11-13 14:34:19,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:19,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 14:34:19,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:19,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 14:34:19,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:34:19,573 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 52 [2024-11-13 14:34:19,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 89 transitions, 779 flow. Second operand has 17 states, 17 states have (on average 7.352941176470588) internal successors, (125), 17 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:19,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:34:19,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 52 [2024-11-13 14:34:19,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:34:25,545 INFO L124 PetriNetUnfolderBase]: 3114/5451 cut-off events. [2024-11-13 14:34:25,545 INFO L125 PetriNetUnfolderBase]: For 15197/15197 co-relation queries the response was YES. [2024-11-13 14:34:25,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20769 conditions, 5451 events. 3114/5451 cut-off events. For 15197/15197 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 35262 event pairs, 215 based on Foata normal form. 10/5067 useless extension candidates. Maximal degree in co-relation 20742. Up to 1054 conditions per place. [2024-11-13 14:34:25,585 INFO L140 encePairwiseOnDemand]: 30/52 looper letters, 204 selfloop transitions, 60 changer transitions 148/417 dead transitions. [2024-11-13 14:34:25,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 417 transitions, 3823 flow [2024-11-13 14:34:25,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 14:34:25,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-13 14:34:25,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 426 transitions. [2024-11-13 14:34:25,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35618729096989965 [2024-11-13 14:34:25,588 INFO L175 Difference]: Start difference. First operand has 95 places, 89 transitions, 779 flow. Second operand 23 states and 426 transitions. [2024-11-13 14:34:25,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 417 transitions, 3823 flow [2024-11-13 14:34:25,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 417 transitions, 3596 flow, removed 38 selfloop flow, removed 6 redundant places. [2024-11-13 14:34:25,729 INFO L231 Difference]: Finished difference. Result has 119 places, 118 transitions, 1264 flow [2024-11-13 14:34:25,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1264, PETRI_PLACES=119, PETRI_TRANSITIONS=118} [2024-11-13 14:34:25,730 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 74 predicate places. [2024-11-13 14:34:25,730 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 118 transitions, 1264 flow [2024-11-13 14:34:25,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.352941176470588) internal successors, (125), 17 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:25,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:34:25,731 INFO L204 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] [2024-11-13 14:34:25,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:34:25,731 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 14:34:25,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:25,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1611713853, now seen corresponding path program 1 times [2024-11-13 14:34:25,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:25,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288922911] [2024-11-13 14:34:25,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:25,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:27,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:34:27,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:27,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288922911] [2024-11-13 14:34:27,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288922911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:27,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:27,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 14:34:27,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954825950] [2024-11-13 14:34:27,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:27,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:34:27,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:27,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:34:27,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:34:27,677 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-13 14:34:27,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 118 transitions, 1264 flow. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:27,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:34:27,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-13 14:34:27,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:34:30,477 INFO L124 PetriNetUnfolderBase]: 2784/5085 cut-off events. [2024-11-13 14:34:30,477 INFO L125 PetriNetUnfolderBase]: For 19191/19191 co-relation queries the response was YES. [2024-11-13 14:34:30,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20790 conditions, 5085 events. 2784/5085 cut-off events. For 19191/19191 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 33747 event pairs, 302 based on Foata normal form. 11/4716 useless extension candidates. Maximal degree in co-relation 20753. Up to 1434 conditions per place. [2024-11-13 14:34:30,507 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 195 selfloop transitions, 59 changer transitions 113/375 dead transitions. [2024-11-13 14:34:30,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 375 transitions, 3876 flow [2024-11-13 14:34:30,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-13 14:34:30,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-13 14:34:30,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 366 transitions. [2024-11-13 14:34:30,510 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.391025641025641 [2024-11-13 14:34:30,510 INFO L175 Difference]: Start difference. First operand has 119 places, 118 transitions, 1264 flow. Second operand 18 states and 366 transitions. [2024-11-13 14:34:30,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 375 transitions, 3876 flow [2024-11-13 14:34:30,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 375 transitions, 3647 flow, removed 10 selfloop flow, removed 9 redundant places. [2024-11-13 14:34:30,636 INFO L231 Difference]: Finished difference. Result has 131 places, 124 transitions, 1415 flow [2024-11-13 14:34:30,636 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1188, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1415, PETRI_PLACES=131, PETRI_TRANSITIONS=124} [2024-11-13 14:34:30,637 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 86 predicate places. [2024-11-13 14:34:30,637 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 124 transitions, 1415 flow [2024-11-13 14:34:30,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:30,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:34:30,637 INFO L204 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] [2024-11-13 14:34:30,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:34:30,638 INFO L396 AbstractCegarLoop]: === Iteration 7 === 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)] === [2024-11-13 14:34:30,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:30,638 INFO L85 PathProgramCache]: Analyzing trace with hash -2111706191, now seen corresponding path program 2 times [2024-11-13 14:34:30,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:30,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136207166] [2024-11-13 14:34:30,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:30,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:32,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:34:32,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:32,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136207166] [2024-11-13 14:34:32,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136207166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:32,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:32,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 14:34:32,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642205777] [2024-11-13 14:34:32,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:32,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:34:32,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:32,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:34:32,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:34:32,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-13 14:34:32,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 124 transitions, 1415 flow. Second operand has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:32,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:34:32,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-13 14:34:32,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:34:36,571 INFO L124 PetriNetUnfolderBase]: 3359/5998 cut-off events. [2024-11-13 14:34:36,571 INFO L125 PetriNetUnfolderBase]: For 28288/28288 co-relation queries the response was YES. [2024-11-13 14:34:36,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25912 conditions, 5998 events. 3359/5998 cut-off events. For 28288/28288 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 40624 event pairs, 206 based on Foata normal form. 10/5516 useless extension candidates. Maximal degree in co-relation 25869. Up to 1384 conditions per place. [2024-11-13 14:34:36,602 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 205 selfloop transitions, 83 changer transitions 126/422 dead transitions. [2024-11-13 14:34:36,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 422 transitions, 4627 flow [2024-11-13 14:34:36,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 14:34:36,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-13 14:34:36,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 443 transitions. [2024-11-13 14:34:36,605 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4056776556776557 [2024-11-13 14:34:36,605 INFO L175 Difference]: Start difference. First operand has 131 places, 124 transitions, 1415 flow. Second operand 21 states and 443 transitions. [2024-11-13 14:34:36,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 422 transitions, 4627 flow [2024-11-13 14:34:36,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 422 transitions, 4309 flow, removed 9 selfloop flow, removed 10 redundant places. [2024-11-13 14:34:36,779 INFO L231 Difference]: Finished difference. Result has 149 places, 146 transitions, 1910 flow [2024-11-13 14:34:36,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1319, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1910, PETRI_PLACES=149, PETRI_TRANSITIONS=146} [2024-11-13 14:34:36,781 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 104 predicate places. [2024-11-13 14:34:36,784 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 146 transitions, 1910 flow [2024-11-13 14:34:36,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:36,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:34:36,785 INFO L204 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] [2024-11-13 14:34:36,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:34:36,785 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 14:34:36,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:36,785 INFO L85 PathProgramCache]: Analyzing trace with hash -542194847, now seen corresponding path program 2 times [2024-11-13 14:34:36,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:36,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937629326] [2024-11-13 14:34:36,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:36,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:34:38,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:38,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937629326] [2024-11-13 14:34:38,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937629326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:38,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:38,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 14:34:38,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860987700] [2024-11-13 14:34:38,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:38,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:34:38,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:38,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:34:38,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:34:39,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-13 14:34:39,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 146 transitions, 1910 flow. Second operand has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:39,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:34:39,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-13 14:34:39,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:34:42,359 INFO L124 PetriNetUnfolderBase]: 3884/7049 cut-off events. [2024-11-13 14:34:42,360 INFO L125 PetriNetUnfolderBase]: For 42834/42834 co-relation queries the response was YES. [2024-11-13 14:34:42,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32529 conditions, 7049 events. 3884/7049 cut-off events. For 42834/42834 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 49547 event pairs, 324 based on Foata normal form. 19/6486 useless extension candidates. Maximal degree in co-relation 32477. Up to 1779 conditions per place. [2024-11-13 14:34:42,412 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 248 selfloop transitions, 105 changer transitions 120/481 dead transitions. [2024-11-13 14:34:42,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 481 transitions, 6010 flow [2024-11-13 14:34:42,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 14:34:42,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-13 14:34:42,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 440 transitions. [2024-11-13 14:34:42,414 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40293040293040294 [2024-11-13 14:34:42,415 INFO L175 Difference]: Start difference. First operand has 149 places, 146 transitions, 1910 flow. Second operand 21 states and 440 transitions. [2024-11-13 14:34:42,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 481 transitions, 6010 flow [2024-11-13 14:34:42,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 481 transitions, 5682 flow, removed 28 selfloop flow, removed 13 redundant places. [2024-11-13 14:34:42,733 INFO L231 Difference]: Finished difference. Result has 163 places, 179 transitions, 2611 flow [2024-11-13 14:34:42,733 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1781, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2611, PETRI_PLACES=163, PETRI_TRANSITIONS=179} [2024-11-13 14:34:42,734 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 118 predicate places. [2024-11-13 14:34:42,734 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 179 transitions, 2611 flow [2024-11-13 14:34:42,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:42,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:34:42,734 INFO L204 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] [2024-11-13 14:34:42,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:34:42,735 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)] === [2024-11-13 14:34:42,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:42,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1897866731, now seen corresponding path program 3 times [2024-11-13 14:34:42,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:42,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348957278] [2024-11-13 14:34:42,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:42,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:45,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:34:45,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:45,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348957278] [2024-11-13 14:34:45,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348957278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:45,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:45,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 14:34:45,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286913550] [2024-11-13 14:34:45,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:45,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:34:45,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:45,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:34:45,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:34:45,180 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-13 14:34:45,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 179 transitions, 2611 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:45,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:34:45,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-13 14:34:45,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:34:49,666 INFO L124 PetriNetUnfolderBase]: 4066/7452 cut-off events. [2024-11-13 14:34:49,666 INFO L125 PetriNetUnfolderBase]: For 53375/53375 co-relation queries the response was YES. [2024-11-13 14:34:49,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36456 conditions, 7452 events. 4066/7452 cut-off events. For 53375/53375 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 53520 event pairs, 145 based on Foata normal form. 11/6823 useless extension candidates. Maximal degree in co-relation 36397. Up to 2448 conditions per place. [2024-11-13 14:34:49,726 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 211 selfloop transitions, 149 changer transitions 98/466 dead transitions. [2024-11-13 14:34:49,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 466 transitions, 6210 flow [2024-11-13 14:34:49,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-13 14:34:49,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-13 14:34:49,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 432 transitions. [2024-11-13 14:34:49,729 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3776223776223776 [2024-11-13 14:34:49,729 INFO L175 Difference]: Start difference. First operand has 163 places, 179 transitions, 2611 flow. Second operand 22 states and 432 transitions. [2024-11-13 14:34:49,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 466 transitions, 6210 flow [2024-11-13 14:34:50,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 466 transitions, 5785 flow, removed 48 selfloop flow, removed 12 redundant places. [2024-11-13 14:34:50,123 INFO L231 Difference]: Finished difference. Result has 182 places, 242 transitions, 3714 flow [2024-11-13 14:34:50,124 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=2392, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=3714, PETRI_PLACES=182, PETRI_TRANSITIONS=242} [2024-11-13 14:34:50,125 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 137 predicate places. [2024-11-13 14:34:50,125 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 242 transitions, 3714 flow [2024-11-13 14:34:50,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:50,125 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:34:50,125 INFO L204 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] [2024-11-13 14:34:50,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:34:50,125 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)] === [2024-11-13 14:34:50,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:50,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1904300885, now seen corresponding path program 3 times [2024-11-13 14:34:50,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:50,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814979921] [2024-11-13 14:34:50,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:50,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:55,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:34:55,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:55,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814979921] [2024-11-13 14:34:55,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814979921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:55,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:55,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-13 14:34:55,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090020020] [2024-11-13 14:34:55,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:55,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 14:34:55,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:55,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 14:34:55,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:34:55,261 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 52 [2024-11-13 14:34:55,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 242 transitions, 3714 flow. Second operand has 19 states, 19 states have (on average 7.2105263157894735) internal successors, (137), 19 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:55,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:34:55,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 52 [2024-11-13 14:34:55,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:35:02,571 INFO L124 PetriNetUnfolderBase]: 5265/9450 cut-off events. [2024-11-13 14:35:02,571 INFO L125 PetriNetUnfolderBase]: For 77144/77150 co-relation queries the response was YES. [2024-11-13 14:35:02,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48001 conditions, 9450 events. 5265/9450 cut-off events. For 77144/77150 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 68032 event pairs, 208 based on Foata normal form. 14/8596 useless extension candidates. Maximal degree in co-relation 47934. Up to 1853 conditions per place. [2024-11-13 14:35:02,664 INFO L140 encePairwiseOnDemand]: 27/52 looper letters, 288 selfloop transitions, 278 changer transitions 223/797 dead transitions. [2024-11-13 14:35:02,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 797 transitions, 11336 flow [2024-11-13 14:35:02,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-13 14:35:02,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2024-11-13 14:35:02,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 636 transitions. [2024-11-13 14:35:02,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3057692307692308 [2024-11-13 14:35:02,668 INFO L175 Difference]: Start difference. First operand has 182 places, 242 transitions, 3714 flow. Second operand 40 states and 636 transitions. [2024-11-13 14:35:02,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 797 transitions, 11336 flow [2024-11-13 14:35:03,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 797 transitions, 11002 flow, removed 114 selfloop flow, removed 4 redundant places. [2024-11-13 14:35:03,418 INFO L231 Difference]: Finished difference. Result has 236 places, 373 transitions, 6555 flow [2024-11-13 14:35:03,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=3585, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=6555, PETRI_PLACES=236, PETRI_TRANSITIONS=373} [2024-11-13 14:35:03,419 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 191 predicate places. [2024-11-13 14:35:03,419 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 373 transitions, 6555 flow [2024-11-13 14:35:03,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.2105263157894735) internal successors, (137), 19 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:35:03,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:35:03,419 INFO L204 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] [2024-11-13 14:35:03,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 14:35:03,419 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 14:35:03,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:03,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1612400693, now seen corresponding path program 4 times [2024-11-13 14:35:03,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:35:03,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118515094] [2024-11-13 14:35:03,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:03,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:35:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:05,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:35:05,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:35:05,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118515094] [2024-11-13 14:35:05,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118515094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:35:05,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:35:05,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 14:35:05,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627679433] [2024-11-13 14:35:05,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:05,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:35:05,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:35:05,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:35:05,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:35:05,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-13 14:35:05,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 373 transitions, 6555 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:35:05,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:35:05,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-13 14:35:05,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:35:09,970 INFO L124 PetriNetUnfolderBase]: 4263/8072 cut-off events. [2024-11-13 14:35:09,970 INFO L125 PetriNetUnfolderBase]: For 97759/97759 co-relation queries the response was YES. [2024-11-13 14:35:10,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48517 conditions, 8072 events. 4263/8072 cut-off events. For 97759/97759 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 61323 event pairs, 354 based on Foata normal form. 19/8089 useless extension candidates. Maximal degree in co-relation 48430. Up to 3182 conditions per place. [2024-11-13 14:35:10,061 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 326 selfloop transitions, 190 changer transitions 86/617 dead transitions. [2024-11-13 14:35:10,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 617 transitions, 10684 flow [2024-11-13 14:35:10,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 14:35:10,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-13 14:35:10,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 317 transitions. [2024-11-13 14:35:10,062 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3585972850678733 [2024-11-13 14:35:10,062 INFO L175 Difference]: Start difference. First operand has 236 places, 373 transitions, 6555 flow. Second operand 17 states and 317 transitions. [2024-11-13 14:35:10,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 617 transitions, 10684 flow [2024-11-13 14:35:11,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 617 transitions, 10044 flow, removed 229 selfloop flow, removed 9 redundant places. [2024-11-13 14:35:11,071 INFO L231 Difference]: Finished difference. Result has 251 places, 429 transitions, 7843 flow [2024-11-13 14:35:11,072 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=6135, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7843, PETRI_PLACES=251, PETRI_TRANSITIONS=429} [2024-11-13 14:35:11,072 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 206 predicate places. [2024-11-13 14:35:11,072 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 429 transitions, 7843 flow [2024-11-13 14:35:11,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:35:11,072 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:35:11,072 INFO L204 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] [2024-11-13 14:35:11,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 14:35:11,073 INFO L396 AbstractCegarLoop]: === Iteration 12 === 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)] === [2024-11-13 14:35:11,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:11,073 INFO L85 PathProgramCache]: Analyzing trace with hash 2015511885, now seen corresponding path program 4 times [2024-11-13 14:35:11,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:35:11,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77576384] [2024-11-13 14:35:11,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:11,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:35:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:13,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:35:13,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:35:13,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77576384] [2024-11-13 14:35:13,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77576384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:35:13,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:35:13,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 14:35:13,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150456787] [2024-11-13 14:35:13,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:13,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:35:13,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:35:13,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:35:13,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:35:13,893 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-13 14:35:13,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 429 transitions, 7843 flow. Second operand has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:35:13,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:35:13,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-13 14:35:13,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:35:20,880 INFO L124 PetriNetUnfolderBase]: 7143/13791 cut-off events. [2024-11-13 14:35:20,881 INFO L125 PetriNetUnfolderBase]: For 180590/180594 co-relation queries the response was YES. [2024-11-13 14:35:21,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85515 conditions, 13791 events. 7143/13791 cut-off events. For 180590/180594 co-relation queries the response was YES. Maximal size of possible extension queue 681. Compared 116974 event pairs, 763 based on Foata normal form. 14/13788 useless extension candidates. Maximal degree in co-relation 85422. Up to 3356 conditions per place. [2024-11-13 14:35:21,070 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 444 selfloop transitions, 338 changer transitions 105/906 dead transitions. [2024-11-13 14:35:21,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 906 transitions, 16731 flow [2024-11-13 14:35:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 14:35:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-13 14:35:21,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 441 transitions. [2024-11-13 14:35:21,072 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36872909698996653 [2024-11-13 14:35:21,072 INFO L175 Difference]: Start difference. First operand has 251 places, 429 transitions, 7843 flow. Second operand 23 states and 441 transitions. [2024-11-13 14:35:21,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 906 transitions, 16731 flow [2024-11-13 14:35:23,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 906 transitions, 16506 flow, removed 55 selfloop flow, removed 8 redundant places. [2024-11-13 14:35:23,221 INFO L231 Difference]: Finished difference. Result has 278 places, 591 transitions, 12069 flow [2024-11-13 14:35:23,222 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=7727, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=12069, PETRI_PLACES=278, PETRI_TRANSITIONS=591} [2024-11-13 14:35:23,222 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 233 predicate places. [2024-11-13 14:35:23,222 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 591 transitions, 12069 flow [2024-11-13 14:35:23,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:35:23,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:35:23,223 INFO L204 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] [2024-11-13 14:35:23,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 14:35:23,223 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)] === [2024-11-13 14:35:23,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:23,223 INFO L85 PathProgramCache]: Analyzing trace with hash -877933369, now seen corresponding path program 5 times [2024-11-13 14:35:23,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:35:23,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874318201] [2024-11-13 14:35:23,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:23,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:35:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:26,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:35:26,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:35:26,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874318201] [2024-11-13 14:35:26,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874318201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:35:26,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:35:26,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-13 14:35:26,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566020052] [2024-11-13 14:35:26,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:26,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 14:35:26,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:35:26,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 14:35:26,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:35:26,819 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 52 [2024-11-13 14:35:26,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 591 transitions, 12069 flow. Second operand has 17 states, 17 states have (on average 8.352941176470589) internal successors, (142), 17 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:35:26,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:35:26,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 52 [2024-11-13 14:35:26,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:35:38,433 INFO L124 PetriNetUnfolderBase]: 8412/15778 cut-off events. [2024-11-13 14:35:38,433 INFO L125 PetriNetUnfolderBase]: For 252616/252620 co-relation queries the response was YES. [2024-11-13 14:35:38,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103052 conditions, 15778 events. 8412/15778 cut-off events. For 252616/252620 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 132407 event pairs, 384 based on Foata normal form. 13/15789 useless extension candidates. Maximal degree in co-relation 102950. Up to 3260 conditions per place. [2024-11-13 14:35:38,657 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 436 selfloop transitions, 515 changer transitions 174/1148 dead transitions. [2024-11-13 14:35:38,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 1148 transitions, 22289 flow [2024-11-13 14:35:38,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-13 14:35:38,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2024-11-13 14:35:38,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 600 transitions. [2024-11-13 14:35:38,659 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32051282051282054 [2024-11-13 14:35:38,660 INFO L175 Difference]: Start difference. First operand has 278 places, 591 transitions, 12069 flow. Second operand 36 states and 600 transitions. [2024-11-13 14:35:38,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 1148 transitions, 22289 flow [2024-11-13 14:35:41,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 1148 transitions, 21998 flow, removed 114 selfloop flow, removed 5 redundant places. [2024-11-13 14:35:41,732 INFO L231 Difference]: Finished difference. Result has 321 places, 742 transitions, 16776 flow [2024-11-13 14:35:41,733 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=11897, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=365, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=16776, PETRI_PLACES=321, PETRI_TRANSITIONS=742} [2024-11-13 14:35:41,733 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 276 predicate places. [2024-11-13 14:35:41,733 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 742 transitions, 16776 flow [2024-11-13 14:35:41,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.352941176470589) internal successors, (142), 17 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:35:41,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:35:41,734 INFO L204 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] [2024-11-13 14:35:41,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 14:35:41,734 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)] === [2024-11-13 14:35:41,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:41,734 INFO L85 PathProgramCache]: Analyzing trace with hash 160334059, now seen corresponding path program 5 times [2024-11-13 14:35:41,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:35:41,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127327756] [2024-11-13 14:35:41,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:41,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:35:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:44,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:35:44,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:35:44,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127327756] [2024-11-13 14:35:44,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127327756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:35:44,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:35:44,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 14:35:44,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393444391] [2024-11-13 14:35:44,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:44,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:35:44,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:35:44,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:35:44,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:35:44,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-13 14:35:44,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 742 transitions, 16776 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:35:44,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:35:44,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-13 14:35:44,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:35:53,224 INFO L124 PetriNetUnfolderBase]: 9101/17463 cut-off events. [2024-11-13 14:35:53,225 INFO L125 PetriNetUnfolderBase]: For 339267/339273 co-relation queries the response was YES. [2024-11-13 14:35:53,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123489 conditions, 17463 events. 9101/17463 cut-off events. For 339267/339273 co-relation queries the response was YES. Maximal size of possible extension queue 836. Compared 153036 event pairs, 1166 based on Foata normal form. 26/17473 useless extension candidates. Maximal degree in co-relation 123376. Up to 5922 conditions per place. [2024-11-13 14:35:53,524 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 720 selfloop transitions, 369 changer transitions 136/1248 dead transitions. [2024-11-13 14:35:53,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 1248 transitions, 28571 flow [2024-11-13 14:35:53,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 14:35:53,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-13 14:35:53,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 395 transitions. [2024-11-13 14:35:53,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3617216117216117 [2024-11-13 14:35:53,526 INFO L175 Difference]: Start difference. First operand has 321 places, 742 transitions, 16776 flow. Second operand 21 states and 395 transitions. [2024-11-13 14:35:53,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 1248 transitions, 28571 flow [2024-11-13 14:35:58,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 1248 transitions, 27154 flow, removed 312 selfloop flow, removed 11 redundant places. [2024-11-13 14:35:58,917 INFO L231 Difference]: Finished difference. Result has 341 places, 890 transitions, 21041 flow [2024-11-13 14:35:58,918 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=15972, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=742, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=220, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=21041, PETRI_PLACES=341, PETRI_TRANSITIONS=890} [2024-11-13 14:35:58,919 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 296 predicate places. [2024-11-13 14:35:58,919 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 890 transitions, 21041 flow [2024-11-13 14:35:58,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:35:58,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:35:58,919 INFO L204 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] [2024-11-13 14:35:58,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 14:35:58,919 INFO L396 AbstractCegarLoop]: === Iteration 15 === 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)] === [2024-11-13 14:35:58,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:58,920 INFO L85 PathProgramCache]: Analyzing trace with hash 666275843, now seen corresponding path program 6 times [2024-11-13 14:35:58,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:35:58,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152475581] [2024-11-13 14:35:58,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:58,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:35:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:36:00,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:36:00,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:36:00,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152475581] [2024-11-13 14:36:00,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152475581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:36:00,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:36:00,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 14:36:00,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127959720] [2024-11-13 14:36:00,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:36:00,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:36:00,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:36:00,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:36:00,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:36:00,960 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-13 14:36:00,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 890 transitions, 21041 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:36:00,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:36:00,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-13 14:36:00,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:36:10,858 INFO L124 PetriNetUnfolderBase]: 8694/16712 cut-off events. [2024-11-13 14:36:10,858 INFO L125 PetriNetUnfolderBase]: For 347396/347406 co-relation queries the response was YES. [2024-11-13 14:36:11,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120324 conditions, 16712 events. 8694/16712 cut-off events. For 347396/347406 co-relation queries the response was YES. Maximal size of possible extension queue 793. Compared 145539 event pairs, 1102 based on Foata normal form. 18/16714 useless extension candidates. Maximal degree in co-relation 120202. Up to 3886 conditions per place. [2024-11-13 14:36:11,206 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 465 selfloop transitions, 521 changer transitions 64/1073 dead transitions. [2024-11-13 14:36:11,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 1073 transitions, 25530 flow [2024-11-13 14:36:11,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 14:36:11,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-13 14:36:11,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 330 transitions. [2024-11-13 14:36:11,209 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3733031674208145 [2024-11-13 14:36:11,209 INFO L175 Difference]: Start difference. First operand has 341 places, 890 transitions, 21041 flow. Second operand 17 states and 330 transitions. [2024-11-13 14:36:11,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 1073 transitions, 25530 flow [2024-11-13 14:36:16,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 1073 transitions, 24858 flow, removed 149 selfloop flow, removed 8 redundant places. [2024-11-13 14:36:16,095 INFO L231 Difference]: Finished difference. Result has 352 places, 892 transitions, 21683 flow [2024-11-13 14:36:16,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=20413, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=890, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=518, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=21683, PETRI_PLACES=352, PETRI_TRANSITIONS=892} [2024-11-13 14:36:16,096 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 307 predicate places. [2024-11-13 14:36:16,096 INFO L471 AbstractCegarLoop]: Abstraction has has 352 places, 892 transitions, 21683 flow [2024-11-13 14:36:16,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:36:16,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:36:16,096 INFO L204 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] [2024-11-13 14:36:16,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 14:36:16,097 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 14:36:16,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:36:16,097 INFO L85 PathProgramCache]: Analyzing trace with hash -474408143, now seen corresponding path program 7 times [2024-11-13 14:36:16,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:36:16,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038216706] [2024-11-13 14:36:16,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:36:16,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:36:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:36:19,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:36:19,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:36:19,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038216706] [2024-11-13 14:36:19,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038216706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:36:19,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:36:19,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 14:36:19,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966795414] [2024-11-13 14:36:19,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:36:19,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:36:19,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:36:19,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:36:19,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:36:19,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-13 14:36:19,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 892 transitions, 21683 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:36:19,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:36:19,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-13 14:36:19,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:36:29,828 INFO L124 PetriNetUnfolderBase]: 10368/19842 cut-off events. [2024-11-13 14:36:29,829 INFO L125 PetriNetUnfolderBase]: For 448563/448569 co-relation queries the response was YES. [2024-11-13 14:36:30,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147410 conditions, 19842 events. 10368/19842 cut-off events. For 448563/448569 co-relation queries the response was YES. Maximal size of possible extension queue 995. Compared 177149 event pairs, 1010 based on Foata normal form. 76/19900 useless extension candidates. Maximal degree in co-relation 147287. Up to 4405 conditions per place. [2024-11-13 14:36:30,193 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 796 selfloop transitions, 583 changer transitions 199/1601 dead transitions. [2024-11-13 14:36:30,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 1601 transitions, 38315 flow [2024-11-13 14:36:30,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-13 14:36:30,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-13 14:36:30,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 540 transitions. [2024-11-13 14:36:30,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38461538461538464 [2024-11-13 14:36:30,195 INFO L175 Difference]: Start difference. First operand has 352 places, 892 transitions, 21683 flow. Second operand 27 states and 540 transitions. [2024-11-13 14:36:30,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 1601 transitions, 38315 flow [2024-11-13 14:36:36,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 1601 transitions, 36824 flow, removed 77 selfloop flow, removed 10 redundant places. [2024-11-13 14:36:36,761 INFO L231 Difference]: Finished difference. Result has 387 places, 1124 transitions, 28515 flow [2024-11-13 14:36:36,762 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=20715, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=892, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=354, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=28515, PETRI_PLACES=387, PETRI_TRANSITIONS=1124} [2024-11-13 14:36:36,763 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 342 predicate places. [2024-11-13 14:36:36,763 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 1124 transitions, 28515 flow [2024-11-13 14:36:36,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:36:36,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:36:36,763 INFO L204 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] [2024-11-13 14:36:36,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 14:36:36,763 INFO L396 AbstractCegarLoop]: === Iteration 17 === 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)] === [2024-11-13 14:36:36,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:36:36,764 INFO L85 PathProgramCache]: Analyzing trace with hash -979933873, now seen corresponding path program 8 times [2024-11-13 14:36:36,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:36:36,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76142647] [2024-11-13 14:36:36,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:36:36,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:36:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:36:39,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:36:39,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:36:39,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76142647] [2024-11-13 14:36:39,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76142647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:36:39,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:36:39,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 14:36:39,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233993936] [2024-11-13 14:36:39,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:36:39,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:36:39,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:36:39,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:36:39,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:36:39,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-13 14:36:39,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 1124 transitions, 28515 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:36:39,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:36:39,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-13 14:36:39,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand