./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 c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f16b4cfe031f645c2fa5eeec572887c79d8e9243727503d849e4b19e0e31cc63 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:34:20,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:34:20,658 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:34:20,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:34:20,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:34:20,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:34:20,689 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:34:20,690 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:34:20,691 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:34:20,694 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:34:20,694 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:34:20,694 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:34:20,695 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:34:20,695 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:34:20,695 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:34:20,695 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:34:20,695 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:34:20,695 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:34:20,696 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:34:20,696 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:34:20,696 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:34:20,699 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:34:20,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:34:20,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:34:20,699 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:34:20,699 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:34:20,700 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:34:20,700 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:34:20,700 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:34:20,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:34:20,700 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:34:20,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:34:20,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:34:20,701 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:34:20,701 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:34:20,701 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:34:20,701 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:34:20,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:34:20,701 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:34:20,701 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:34:20,702 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:34:20,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:34:20,703 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f16b4cfe031f645c2fa5eeec572887c79d8e9243727503d849e4b19e0e31cc63 [2024-11-09 02:34:20,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:34:20,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:34:20,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:34:20,944 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:34:20,944 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:34:20,945 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-11-09 02:34:22,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:34:22,647 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:34:22,648 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-11-09 02:34:22,701 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5079e90b/9f70e54f620241e4bef4f33c3227b5c7/FLAG4959509de [2024-11-09 02:34:22,716 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5079e90b/9f70e54f620241e4bef4f33c3227b5c7 [2024-11-09 02:34:22,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:34:22,720 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:34:22,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:34:22,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:34:22,727 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:34:22,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:34:22" (1/1) ... [2024-11-09 02:34:22,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e859154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:34:22, skipping insertion in model container [2024-11-09 02:34:22,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:34:22" (1/1) ... [2024-11-09 02:34:22,868 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:34:23,157 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2024-11-09 02:34:25,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:34:25,489 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:34:25,502 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2024-11-09 02:34:25,576 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] [2024-11-09 02:34:25,578 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] [2024-11-09 02:34:25,578 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] [2024-11-09 02:34:25,578 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] [2024-11-09 02:34:25,655 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2024-11-09 02:34:25,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:34:26,109 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:34:26,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:34:26 WrapperNode [2024-11-09 02:34:26,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:34:26,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:34:26,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:34:26,112 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:34:26,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:34:26" (1/1) ... [2024-11-09 02:34:26,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:34:26" (1/1) ... [2024-11-09 02:34:26,258 INFO L138 Inliner]: procedures = 1354, calls = 1479, calls flagged for inlining = 352, calls inlined = 18, statements flattened = 402 [2024-11-09 02:34:26,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:34:26,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:34:26,263 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:34:26,263 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:34:26,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:34:26" (1/1) ... [2024-11-09 02:34:26,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:34:26" (1/1) ... [2024-11-09 02:34:26,284 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:34:26" (1/1) ... [2024-11-09 02:34:26,311 INFO L175 MemorySlicer]: Split 52 memory accesses to 7 slices as follows [2, 31, 1, 4, 2, 3, 9]. 60 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 31, 1, 4, 2, 3, 0]. The 3 writes are split as follows [0, 0, 0, 0, 0, 0, 3]. [2024-11-09 02:34:26,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:34:26" (1/1) ... [2024-11-09 02:34:26,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:34:26" (1/1) ... [2024-11-09 02:34:26,341 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:34:26" (1/1) ... [2024-11-09 02:34:26,344 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:34:26" (1/1) ... [2024-11-09 02:34:26,355 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:34:26" (1/1) ... [2024-11-09 02:34:26,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:34:26" (1/1) ... [2024-11-09 02:34:26,370 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:34:26,370 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:34:26,371 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:34:26,371 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:34:26,375 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:34:26" (1/1) ... [2024-11-09 02:34:26,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:34:26,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:34:26,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 02:34:26,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 02:34:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 02:34:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 02:34:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 02:34:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 02:34:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 02:34:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 02:34:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 02:34:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 02:34:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:34:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:34:26,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:34:26,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 02:34:26,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 02:34:26,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 02:34:26,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 02:34:26,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 02:34:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 02:34:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 02:34:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2024-11-09 02:34:26,458 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2024-11-09 02:34:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 02:34:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 02:34:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 02:34:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 02:34:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 02:34:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 02:34:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 02:34:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-09 02:34:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-09 02:34:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2024-11-09 02:34:26,459 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2024-11-09 02:34:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:34:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 02:34:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 02:34:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 02:34:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 02:34:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 02:34:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 02:34:26,461 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 02:34:26,774 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:34:26,776 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:34:27,141 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:34:27,141 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:34:27,494 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:34:27,494 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 02:34:27,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:34:27 BoogieIcfgContainer [2024-11-09 02:34:27,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:34:27,496 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:34:27,496 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:34:27,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:34:27,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:34:22" (1/3) ... [2024-11-09 02:34:27,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bb3a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:34:27, skipping insertion in model container [2024-11-09 02:34:27,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:34:26" (2/3) ... [2024-11-09 02:34:27,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bb3a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:34:27, skipping insertion in model container [2024-11-09 02:34:27,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:34:27" (3/3) ... [2024-11-09 02:34:27,500 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2024-11-09 02:34:27,514 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:34:27,514 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 02:34:27,514 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:34:27,580 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 02:34:27,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 52 transitions, 118 flow [2024-11-09 02:34:27,671 INFO L124 PetriNetUnfolderBase]: 10/50 cut-off events. [2024-11-09 02:34:27,671 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 02:34:27,677 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. [2024-11-09 02:34:27,678 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 52 transitions, 118 flow [2024-11-09 02:34:27,680 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 48 transitions, 105 flow [2024-11-09 02:34:27,690 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:34:27,697 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;@316880e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:34:27,697 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 02:34:27,711 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:34:27,712 INFO L124 PetriNetUnfolderBase]: 8/42 cut-off events. [2024-11-09 02:34:27,712 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 02:34:27,712 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:27,713 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:27,713 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)] === [2024-11-09 02:34:27,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:27,717 INFO L85 PathProgramCache]: Analyzing trace with hash 393972096, now seen corresponding path program 1 times [2024-11-09 02:34:27,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:27,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629112494] [2024-11-09 02:34:27,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:27,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:34:29,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:29,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629112494] [2024-11-09 02:34:29,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629112494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:29,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:29,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 02:34:29,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47089767] [2024-11-09 02:34:29,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:29,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 02:34:29,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:29,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 02:34:29,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 02:34:29,150 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 52 [2024-11-09 02:34:29,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 105 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:34:29,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:29,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 52 [2024-11-09 02:34:29,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:30,355 INFO L124 PetriNetUnfolderBase]: 1706/2859 cut-off events. [2024-11-09 02:34:30,356 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-09 02:34:30,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5567 conditions, 2859 events. 1706/2859 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 14681 event pairs, 182 based on Foata normal form. 145/2538 useless extension candidates. Maximal degree in co-relation 5484. Up to 767 conditions per place. [2024-11-09 02:34:30,377 INFO L140 encePairwiseOnDemand]: 38/52 looper letters, 159 selfloop transitions, 32 changer transitions 21/219 dead transitions. [2024-11-09 02:34:30,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 219 transitions, 889 flow [2024-11-09 02:34:30,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 02:34:30,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 02:34:30,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 346 transitions. [2024-11-09 02:34:30,391 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5118343195266272 [2024-11-09 02:34:30,393 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 105 flow. Second operand 13 states and 346 transitions. [2024-11-09 02:34:30,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 219 transitions, 889 flow [2024-11-09 02:34:30,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 219 transitions, 878 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 02:34:30,403 INFO L231 Difference]: Finished difference. Result has 60 places, 77 transitions, 285 flow [2024-11-09 02:34:30,405 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=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=285, PETRI_PLACES=60, PETRI_TRANSITIONS=77} [2024-11-09 02:34:30,407 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 15 predicate places. [2024-11-09 02:34:30,409 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 77 transitions, 285 flow [2024-11-09 02:34:30,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:34:30,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:30,410 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:30,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:34:30,410 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)] === [2024-11-09 02:34:30,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:30,411 INFO L85 PathProgramCache]: Analyzing trace with hash -2096645885, now seen corresponding path program 1 times [2024-11-09 02:34:30,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:30,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153876192] [2024-11-09 02:34:30,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:30,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:31,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:34:31,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:31,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153876192] [2024-11-09 02:34:31,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153876192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:34:31,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985428224] [2024-11-09 02:34:31,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:31,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:34:31,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:34:31,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:34:31,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 02:34:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:32,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 02:34:32,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:34:32,238 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 [2024-11-09 02:34:32,265 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 [2024-11-09 02:34:32,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 02:34:32,339 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 02:34:32,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985428224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:32,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 02:34:32,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-11-09 02:34:32,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597786337] [2024-11-09 02:34:32,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:32,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:34:32,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:32,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:34:32,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:34:32,360 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2024-11-09 02:34:32,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 77 transitions, 285 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) [2024-11-09 02:34:32,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:32,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2024-11-09 02:34:32,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:32,923 INFO L124 PetriNetUnfolderBase]: 1631/2889 cut-off events. [2024-11-09 02:34:32,923 INFO L125 PetriNetUnfolderBase]: For 788/788 co-relation queries the response was YES. [2024-11-09 02:34:32,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6791 conditions, 2889 events. 1631/2889 cut-off events. For 788/788 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 15702 event pairs, 736 based on Foata normal form. 38/2575 useless extension candidates. Maximal degree in co-relation 6466. Up to 1760 conditions per place. [2024-11-09 02:34:32,964 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 93 selfloop transitions, 25 changer transitions 18/148 dead transitions. [2024-11-09 02:34:32,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 148 transitions, 736 flow [2024-11-09 02:34:32,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 02:34:32,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 02:34:32,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 181 transitions. [2024-11-09 02:34:32,967 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49725274725274726 [2024-11-09 02:34:32,967 INFO L175 Difference]: Start difference. First operand has 60 places, 77 transitions, 285 flow. Second operand 7 states and 181 transitions. [2024-11-09 02:34:32,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 148 transitions, 736 flow [2024-11-09 02:34:32,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 148 transitions, 736 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 02:34:32,980 INFO L231 Difference]: Finished difference. Result has 71 places, 84 transitions, 438 flow [2024-11-09 02:34:32,980 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=438, PETRI_PLACES=71, PETRI_TRANSITIONS=84} [2024-11-09 02:34:32,981 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 26 predicate places. [2024-11-09 02:34:32,981 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 84 transitions, 438 flow [2024-11-09 02:34:32,981 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) [2024-11-09 02:34:32,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:32,982 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:33,004 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 02:34:33,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:34:33,186 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)] === [2024-11-09 02:34:33,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:33,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1217525052, now seen corresponding path program 1 times [2024-11-09 02:34:33,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:33,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493398158] [2024-11-09 02:34:33,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:33,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:33,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:34:33,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:33,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493398158] [2024-11-09 02:34:33,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493398158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:33,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:33,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:34:33,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453342409] [2024-11-09 02:34:33,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:33,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:34:33,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:33,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:34:33,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:34:33,677 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 52 [2024-11-09 02:34:33,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 84 transitions, 438 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:34:33,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:33,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 52 [2024-11-09 02:34:33,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:34,249 INFO L124 PetriNetUnfolderBase]: 1709/2919 cut-off events. [2024-11-09 02:34:34,250 INFO L125 PetriNetUnfolderBase]: For 2982/3000 co-relation queries the response was YES. [2024-11-09 02:34:34,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8285 conditions, 2919 events. 1709/2919 cut-off events. For 2982/3000 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 15229 event pairs, 691 based on Foata normal form. 0/2737 useless extension candidates. Maximal degree in co-relation 8010. Up to 1564 conditions per place. [2024-11-09 02:34:34,260 INFO L140 encePairwiseOnDemand]: 44/52 looper letters, 61 selfloop transitions, 13 changer transitions 147/231 dead transitions. [2024-11-09 02:34:34,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 231 transitions, 1719 flow [2024-11-09 02:34:34,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 02:34:34,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 02:34:34,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 188 transitions. [2024-11-09 02:34:34,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4519230769230769 [2024-11-09 02:34:34,262 INFO L175 Difference]: Start difference. First operand has 71 places, 84 transitions, 438 flow. Second operand 8 states and 188 transitions. [2024-11-09 02:34:34,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 231 transitions, 1719 flow [2024-11-09 02:34:34,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 231 transitions, 1654 flow, removed 14 selfloop flow, removed 3 redundant places. [2024-11-09 02:34:34,285 INFO L231 Difference]: Finished difference. Result has 81 places, 64 transitions, 366 flow [2024-11-09 02:34:34,285 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=366, PETRI_PLACES=81, PETRI_TRANSITIONS=64} [2024-11-09 02:34:34,286 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 36 predicate places. [2024-11-09 02:34:34,286 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 64 transitions, 366 flow [2024-11-09 02:34:34,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:34:34,286 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:34,286 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] [2024-11-09 02:34:34,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:34:34,286 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 02:34:34,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:34,287 INFO L85 PathProgramCache]: Analyzing trace with hash 785519389, now seen corresponding path program 1 times [2024-11-09 02:34:34,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:34,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596047122] [2024-11-09 02:34:34,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:34,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:36,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:34:36,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:36,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596047122] [2024-11-09 02:34:36,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596047122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:36,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:36,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 02:34:36,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499271133] [2024-11-09 02:34:36,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:36,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 02:34:36,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:36,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 02:34:36,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-09 02:34:36,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-09 02:34:36,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 64 transitions, 366 flow. Second operand has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:34:36,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:36,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-09 02:34:36,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:39,184 INFO L124 PetriNetUnfolderBase]: 1616/2943 cut-off events. [2024-11-09 02:34:39,184 INFO L125 PetriNetUnfolderBase]: For 4025/4025 co-relation queries the response was YES. [2024-11-09 02:34:39,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9206 conditions, 2943 events. 1616/2943 cut-off events. For 4025/4025 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 17155 event pairs, 135 based on Foata normal form. 10/2758 useless extension candidates. Maximal degree in co-relation 9187. Up to 835 conditions per place. [2024-11-09 02:34:39,201 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 158 selfloop transitions, 58 changer transitions 72/294 dead transitions. [2024-11-09 02:34:39,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 294 transitions, 1892 flow [2024-11-09 02:34:39,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 02:34:39,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-09 02:34:39,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 434 transitions. [2024-11-09 02:34:39,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3793706293706294 [2024-11-09 02:34:39,204 INFO L175 Difference]: Start difference. First operand has 81 places, 64 transitions, 366 flow. Second operand 22 states and 434 transitions. [2024-11-09 02:34:39,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 294 transitions, 1892 flow [2024-11-09 02:34:39,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 294 transitions, 1788 flow, removed 19 selfloop flow, removed 6 redundant places. [2024-11-09 02:34:39,228 INFO L231 Difference]: Finished difference. Result has 108 places, 99 transitions, 842 flow [2024-11-09 02:34:39,228 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=842, PETRI_PLACES=108, PETRI_TRANSITIONS=99} [2024-11-09 02:34:39,229 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 63 predicate places. [2024-11-09 02:34:39,229 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 99 transitions, 842 flow [2024-11-09 02:34:39,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:34:39,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:39,230 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] [2024-11-09 02:34:39,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:34:39,230 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)] === [2024-11-09 02:34:39,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:39,230 INFO L85 PathProgramCache]: Analyzing trace with hash 687694165, now seen corresponding path program 2 times [2024-11-09 02:34:39,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:39,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152484943] [2024-11-09 02:34:39,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:39,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:44,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:34:44,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:44,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152484943] [2024-11-09 02:34:44,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152484943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:44,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:44,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-09 02:34:44,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377169812] [2024-11-09 02:34:44,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:44,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 02:34:44,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:44,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 02:34:44,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-11-09 02:34:44,318 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 52 [2024-11-09 02:34:44,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 99 transitions, 842 flow. Second operand has 18 states, 18 states have (on average 7.277777777777778) internal successors, (131), 18 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:34:44,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:44,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 52 [2024-11-09 02:34:44,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:50,954 INFO L124 PetriNetUnfolderBase]: 3873/6753 cut-off events. [2024-11-09 02:34:50,954 INFO L125 PetriNetUnfolderBase]: For 20212/20212 co-relation queries the response was YES. [2024-11-09 02:34:50,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25621 conditions, 6753 events. 3873/6753 cut-off events. For 20212/20212 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 44383 event pairs, 166 based on Foata normal form. 20/6227 useless extension candidates. Maximal degree in co-relation 25588. Up to 1380 conditions per place. [2024-11-09 02:34:51,018 INFO L140 encePairwiseOnDemand]: 27/52 looper letters, 271 selfloop transitions, 163 changer transitions 158/596 dead transitions. [2024-11-09 02:34:51,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 596 transitions, 5386 flow [2024-11-09 02:34:51,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-09 02:34:51,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2024-11-09 02:34:51,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 709 transitions. [2024-11-09 02:34:51,022 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3170840787119857 [2024-11-09 02:34:51,022 INFO L175 Difference]: Start difference. First operand has 108 places, 99 transitions, 842 flow. Second operand 43 states and 709 transitions. [2024-11-09 02:34:51,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 596 transitions, 5386 flow [2024-11-09 02:34:51,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 596 transitions, 5255 flow, removed 30 selfloop flow, removed 4 redundant places. [2024-11-09 02:34:51,148 INFO L231 Difference]: Finished difference. Result has 175 places, 235 transitions, 2969 flow [2024-11-09 02:34:51,148 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=2969, PETRI_PLACES=175, PETRI_TRANSITIONS=235} [2024-11-09 02:34:51,149 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 130 predicate places. [2024-11-09 02:34:51,150 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 235 transitions, 2969 flow [2024-11-09 02:34:51,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.277777777777778) internal successors, (131), 18 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:34:51,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:51,151 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] [2024-11-09 02:34:51,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 02:34:51,151 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)] === [2024-11-09 02:34:51,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:51,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2037212469, now seen corresponding path program 1 times [2024-11-09 02:34:51,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:51,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904703789] [2024-11-09 02:34:51,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:51,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:52,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:34:52,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:52,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904703789] [2024-11-09 02:34:52,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904703789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:52,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:52,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 02:34:52,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410583070] [2024-11-09 02:34:52,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:52,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 02:34:52,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:52,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 02:34:52,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-09 02:34:52,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-09 02:34:52,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 235 transitions, 2969 flow. Second operand has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:34:52,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:52,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-09 02:34:52,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:56,761 INFO L124 PetriNetUnfolderBase]: 5332/9590 cut-off events. [2024-11-09 02:34:56,762 INFO L125 PetriNetUnfolderBase]: For 90799/90817 co-relation queries the response was YES. [2024-11-09 02:34:56,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51204 conditions, 9590 events. 5332/9590 cut-off events. For 90799/90817 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 70801 event pairs, 242 based on Foata normal form. 31/9597 useless extension candidates. Maximal degree in co-relation 51141. Up to 2048 conditions per place. [2024-11-09 02:34:56,851 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 319 selfloop transitions, 277 changer transitions 171/784 dead transitions. [2024-11-09 02:34:56,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 784 transitions, 10388 flow [2024-11-09 02:34:56,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-09 02:34:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-11-09 02:34:56,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 663 transitions. [2024-11-09 02:34:56,857 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36428571428571427 [2024-11-09 02:34:56,857 INFO L175 Difference]: Start difference. First operand has 175 places, 235 transitions, 2969 flow. Second operand 35 states and 663 transitions. [2024-11-09 02:34:56,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 784 transitions, 10388 flow [2024-11-09 02:34:57,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 784 transitions, 9913 flow, removed 183 selfloop flow, removed 8 redundant places. [2024-11-09 02:34:57,446 INFO L231 Difference]: Finished difference. Result has 214 places, 407 transitions, 6001 flow [2024-11-09 02:34:57,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=2759, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=6001, PETRI_PLACES=214, PETRI_TRANSITIONS=407} [2024-11-09 02:34:57,447 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 169 predicate places. [2024-11-09 02:34:57,447 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 407 transitions, 6001 flow [2024-11-09 02:34:57,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:34:57,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:57,448 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] [2024-11-09 02:34:57,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 02:34:57,448 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)] === [2024-11-09 02:34:57,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:57,448 INFO L85 PathProgramCache]: Analyzing trace with hash -60877321, now seen corresponding path program 3 times [2024-11-09 02:34:57,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:57,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892594257] [2024-11-09 02:34:57,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:57,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:58,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:34:58,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:58,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892594257] [2024-11-09 02:34:58,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892594257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:58,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:58,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 02:34:58,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648051560] [2024-11-09 02:34:58,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:58,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 02:34:58,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:58,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 02:34:58,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-09 02:34:58,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-09 02:34:58,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 407 transitions, 6001 flow. Second operand has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:34:58,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:58,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-09 02:34:58,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:35:03,850 INFO L124 PetriNetUnfolderBase]: 8261/14573 cut-off events. [2024-11-09 02:35:03,850 INFO L125 PetriNetUnfolderBase]: For 175405/175417 co-relation queries the response was YES. [2024-11-09 02:35:03,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86235 conditions, 14573 events. 8261/14573 cut-off events. For 175405/175417 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 112267 event pairs, 636 based on Foata normal form. 28/14565 useless extension candidates. Maximal degree in co-relation 86155. Up to 2760 conditions per place. [2024-11-09 02:35:04,016 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 457 selfloop transitions, 478 changer transitions 213/1157 dead transitions. [2024-11-09 02:35:04,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 1157 transitions, 18315 flow [2024-11-09 02:35:04,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-09 02:35:04,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2024-11-09 02:35:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 840 transitions. [2024-11-09 02:35:04,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3436988543371522 [2024-11-09 02:35:04,019 INFO L175 Difference]: Start difference. First operand has 214 places, 407 transitions, 6001 flow. Second operand 47 states and 840 transitions. [2024-11-09 02:35:04,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 1157 transitions, 18315 flow [2024-11-09 02:35:06,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 1157 transitions, 16530 flow, removed 875 selfloop flow, removed 4 redundant places. [2024-11-09 02:35:06,124 INFO L231 Difference]: Finished difference. Result has 285 places, 676 transitions, 11439 flow [2024-11-09 02:35:06,124 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=5480, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=11439, PETRI_PLACES=285, PETRI_TRANSITIONS=676} [2024-11-09 02:35:06,125 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 240 predicate places. [2024-11-09 02:35:06,125 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 676 transitions, 11439 flow [2024-11-09 02:35:06,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:35:06,125 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:35:06,125 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] [2024-11-09 02:35:06,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 02:35:06,126 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 02:35:06,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:35:06,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1120091877, now seen corresponding path program 4 times [2024-11-09 02:35:06,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:35:06,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444733566] [2024-11-09 02:35:06,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:35:06,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:35:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:35:07,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:35:07,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:35:07,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444733566] [2024-11-09 02:35:07,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444733566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:35:07,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:35:07,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 02:35:07,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111034680] [2024-11-09 02:35:07,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:35:07,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 02:35:07,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:35:07,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 02:35:07,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-09 02:35:07,696 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-09 02:35:07,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 676 transitions, 11439 flow. Second operand has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:35:07,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:35:07,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-09 02:35:07,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:35:13,207 INFO L124 PetriNetUnfolderBase]: 7632/13572 cut-off events. [2024-11-09 02:35:13,208 INFO L125 PetriNetUnfolderBase]: For 179702/179714 co-relation queries the response was YES. [2024-11-09 02:35:13,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84262 conditions, 13572 events. 7632/13572 cut-off events. For 179702/179714 co-relation queries the response was YES. Maximal size of possible extension queue 575. Compared 104365 event pairs, 860 based on Foata normal form. 26/13564 useless extension candidates. Maximal degree in co-relation 84153. Up to 3917 conditions per place. [2024-11-09 02:35:13,375 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 478 selfloop transitions, 406 changer transitions 107/1000 dead transitions. [2024-11-09 02:35:13,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 1000 transitions, 17413 flow [2024-11-09 02:35:13,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 02:35:13,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-09 02:35:13,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 496 transitions. [2024-11-09 02:35:13,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38153846153846155 [2024-11-09 02:35:13,378 INFO L175 Difference]: Start difference. First operand has 285 places, 676 transitions, 11439 flow. Second operand 25 states and 496 transitions. [2024-11-09 02:35:13,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 1000 transitions, 17413 flow [2024-11-09 02:35:15,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 1000 transitions, 16475 flow, removed 302 selfloop flow, removed 13 redundant places. [2024-11-09 02:35:15,751 INFO L231 Difference]: Finished difference. Result has 301 places, 721 transitions, 12981 flow [2024-11-09 02:35:15,751 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=10790, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=676, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=353, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=12981, PETRI_PLACES=301, PETRI_TRANSITIONS=721} [2024-11-09 02:35:15,751 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 256 predicate places. [2024-11-09 02:35:15,752 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 721 transitions, 12981 flow [2024-11-09 02:35:15,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:35:15,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:35:15,752 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] [2024-11-09 02:35:15,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 02:35:15,752 INFO L396 AbstractCegarLoop]: === Iteration 9 === 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)] === [2024-11-09 02:35:15,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:35:15,753 INFO L85 PathProgramCache]: Analyzing trace with hash -866956101, now seen corresponding path program 5 times [2024-11-09 02:35:15,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:35:15,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006886122] [2024-11-09 02:35:15,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:35:15,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:35:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:35:17,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:35:17,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:35:17,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006886122] [2024-11-09 02:35:17,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006886122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:35:17,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:35:17,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 02:35:17,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161985139] [2024-11-09 02:35:17,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:35:17,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 02:35:17,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:35:17,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 02:35:17,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-09 02:35:17,744 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 52 [2024-11-09 02:35:17,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 721 transitions, 12981 flow. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:35:17,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:35:17,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 52 [2024-11-09 02:35:17,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:35:26,022 INFO L124 PetriNetUnfolderBase]: 11402/20043 cut-off events. [2024-11-09 02:35:26,023 INFO L125 PetriNetUnfolderBase]: For 274896/274896 co-relation queries the response was YES. [2024-11-09 02:35:26,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126848 conditions, 20043 events. 11402/20043 cut-off events. For 274896/274896 co-relation queries the response was YES. Maximal size of possible extension queue 848. Compared 161446 event pairs, 1173 based on Foata normal form. 20/20063 useless extension candidates. Maximal degree in co-relation 126734. Up to 5280 conditions per place. [2024-11-09 02:35:26,247 INFO L140 encePairwiseOnDemand]: 29/52 looper letters, 751 selfloop transitions, 577 changer transitions 196/1528 dead transitions. [2024-11-09 02:35:26,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 1528 transitions, 28181 flow [2024-11-09 02:35:26,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-09 02:35:26,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2024-11-09 02:35:26,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 687 transitions. [2024-11-09 02:35:26,249 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3476720647773279 [2024-11-09 02:35:26,249 INFO L175 Difference]: Start difference. First operand has 301 places, 721 transitions, 12981 flow. Second operand 38 states and 687 transitions. [2024-11-09 02:35:26,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 1528 transitions, 28181 flow [2024-11-09 02:35:30,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 1528 transitions, 26942 flow, removed 299 selfloop flow, removed 14 redundant places. [2024-11-09 02:35:30,455 INFO L231 Difference]: Finished difference. Result has 353 places, 1010 transitions, 20323 flow [2024-11-09 02:35:30,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=12470, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=721, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=308, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=20323, PETRI_PLACES=353, PETRI_TRANSITIONS=1010} [2024-11-09 02:35:30,456 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 308 predicate places. [2024-11-09 02:35:30,457 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 1010 transitions, 20323 flow [2024-11-09 02:35:30,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:35:30,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:35:30,457 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] [2024-11-09 02:35:30,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 02:35:30,457 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 02:35:30,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:35:30,457 INFO L85 PathProgramCache]: Analyzing trace with hash 467384625, now seen corresponding path program 2 times [2024-11-09 02:35:30,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:35:30,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874895102] [2024-11-09 02:35:30,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:35:30,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:35:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:35:32,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:35:32,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:35:32,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874895102] [2024-11-09 02:35:32,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874895102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:35:32,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:35:32,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 02:35:32,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130049053] [2024-11-09 02:35:32,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:35:32,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 02:35:32,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:35:32,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 02:35:32,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:35:32,118 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-09 02:35:32,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 1010 transitions, 20323 flow. Second operand has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:35:32,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:35:32,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-09 02:35:32,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:35:39,875 INFO L124 PetriNetUnfolderBase]: 10443/18778 cut-off events. [2024-11-09 02:35:39,876 INFO L125 PetriNetUnfolderBase]: For 319240/319342 co-relation queries the response was YES. [2024-11-09 02:35:40,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126948 conditions, 18778 events. 10443/18778 cut-off events. For 319240/319342 co-relation queries the response was YES. Maximal size of possible extension queue 800. Compared 154318 event pairs, 952 based on Foata normal form. 59/18761 useless extension candidates. Maximal degree in co-relation 126814. Up to 6067 conditions per place. [2024-11-09 02:35:40,137 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 621 selfloop transitions, 578 changer transitions 120/1362 dead transitions. [2024-11-09 02:35:40,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 1362 transitions, 27887 flow [2024-11-09 02:35:40,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 02:35:40,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-09 02:35:40,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 536 transitions. [2024-11-09 02:35:40,139 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36813186813186816 [2024-11-09 02:35:40,139 INFO L175 Difference]: Start difference. First operand has 353 places, 1010 transitions, 20323 flow. Second operand 28 states and 536 transitions. [2024-11-09 02:35:40,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 1362 transitions, 27887 flow