./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i --full-output --validate ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/char_generic_nvram_read_nvram_write_nvram.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c091e2ee Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/char_generic_nvram_read_nvram_write_nvram.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-c091e2e-m [2024-08-13 13:35:58,213 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-13 13:35:58,298 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-13 13:35:58,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-13 13:35:58,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-13 13:35:58,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-13 13:35:58,330 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-13 13:35:58,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-13 13:35:58,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-13 13:35:58,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-13 13:35:58,333 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-13 13:35:58,334 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-13 13:35:58,334 INFO L153 SettingsManager]: * Use SBE=true [2024-08-13 13:35:58,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-13 13:35:58,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-13 13:35:58,337 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-13 13:35:58,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-13 13:35:58,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-13 13:35:58,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-13 13:35:58,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-13 13:35:58,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-13 13:35:58,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-13 13:35:58,342 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-13 13:35:58,342 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-13 13:35:58,343 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-13 13:35:58,343 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-13 13:35:58,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-13 13:35:58,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-13 13:35:58,344 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-13 13:35:58,344 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-13 13:35:58,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 13:35:58,344 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-13 13:35:58,344 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-13 13:35:58,345 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-13 13:35:58,345 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-13 13:35:58,345 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-13 13:35:58,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-13 13:35:58,345 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-13 13:35:58,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-13 13:35:58,346 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-13 13:35:58,346 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-13 13:35:58,346 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-13 13:35:58,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2024-08-13 13:35:58,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-13 13:35:58,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-13 13:35:58,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-13 13:35:58,622 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-13 13:35:58,623 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-13 13:35:58,624 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/char_generic_nvram_read_nvram_write_nvram.yml/witness.yml [2024-08-13 13:35:58,805 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-13 13:35:58,806 INFO L274 PluginConnector]: CDTParser initialized [2024-08-13 13:35:58,806 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-08-13 13:36:00,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-13 13:36:00,754 INFO L384 CDTParser]: Found 1 translation units. [2024-08-13 13:36:00,755 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-08-13 13:36:00,801 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6a8c708fd/eb399588fa7a48ebaa42776ac84a8dd2/FLAG7ea61f35c [2024-08-13 13:36:00,816 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6a8c708fd/eb399588fa7a48ebaa42776ac84a8dd2 [2024-08-13 13:36:00,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-13 13:36:00,818 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-13 13:36:00,820 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-13 13:36:00,820 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-13 13:36:00,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-13 13:36:00,826 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 01:35:58" (1/2) ... [2024-08-13 13:36:00,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e8e7d9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 01:36:00, skipping insertion in model container [2024-08-13 13:36:00,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 01:35:58" (1/2) ... [2024-08-13 13:36:00,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@17a4ac19 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 01:36:00, skipping insertion in model container [2024-08-13 13:36:00,830 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:36:00" (2/2) ... [2024-08-13 13:36:00,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e8e7d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:36:00, skipping insertion in model container [2024-08-13 13:36:00,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:36:00" (2/2) ... [2024-08-13 13:36:00,831 INFO L81 nessWitnessExtractor]: Only extracting loop invariants from correctness witness [2024-08-13 13:36:00,872 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-13 13:36:00,873 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-13 13:36:00,875 INFO L106 edCorrectnessWitness]: ghost_update [L6883-L6883] multithreaded = 1; [2024-08-13 13:36:00,975 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-13 13:36:01,329 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2024-08-13 13:36:04,776 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 13:36:04,796 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-08-13 13:36:04,840 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2024-08-13 13:36:04,934 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2024-08-13 13:36:04,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2024-08-13 13:36:04,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2024-08-13 13:36:04,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2024-08-13 13:36:05,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] Start Parsing Local [2024-08-13 13:36:05,093 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 13:36:05,506 ERROR L334 MainTranslator]: Unsupported Syntax: The following functions are not defined or handled internally: ____ilog2_NaN [2024-08-13 13:36:05,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@17a4ac19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:36:05, skipping insertion in model container [2024-08-13 13:36:05,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-13 13:36:05,507 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-08-13 13:36:05,509 INFO L158 Benchmark]: Toolchain (without parser) took 4689.94ms. Allocated memory was 161.5MB in the beginning and 243.3MB in the end (delta: 81.8MB). Free memory was 129.3MB in the beginning and 119.0MB in the end (delta: 10.3MB). Peak memory consumption was 129.2MB. Max. memory is 16.1GB. [2024-08-13 13:36:05,510 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 13:36:05,510 INFO L158 Benchmark]: CDTParser took 0.95ms. Allocated memory is still 161.5MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 13:36:05,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4687.34ms. Allocated memory was 161.5MB in the beginning and 243.3MB in the end (delta: 81.8MB). Free memory was 129.2MB in the beginning and 119.0MB in the end (delta: 10.2MB). Peak memory consumption was 129.2MB. Max. memory is 16.1GB. [2024-08-13 13:36:05,512 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.95ms. Allocated memory is still 161.5MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4687.34ms. Allocated memory was 161.5MB in the beginning and 243.3MB in the end (delta: 81.8MB). Free memory was 129.2MB in the beginning and 119.0MB in the end (delta: 10.2MB). Peak memory consumption was 129.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 5814]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] - UnsupportedSyntaxResult [Line: -1]: Unsupported Syntax The following functions are not defined or handled internally: ____ilog2_NaN RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/char_generic_nvram_read_nvram_write_nvram.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-c091e2e-m [2024-08-13 13:36:07,508 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-13 13:36:07,588 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-08-13 13:36:07,593 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-13 13:36:07,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-13 13:36:07,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-13 13:36:07,620 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-13 13:36:07,621 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-13 13:36:07,622 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-13 13:36:07,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-13 13:36:07,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-13 13:36:07,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-13 13:36:07,624 INFO L153 SettingsManager]: * Use SBE=true [2024-08-13 13:36:07,626 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-13 13:36:07,626 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-13 13:36:07,626 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-13 13:36:07,627 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-13 13:36:07,627 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-13 13:36:07,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-13 13:36:07,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-13 13:36:07,630 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-13 13:36:07,631 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-13 13:36:07,631 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-13 13:36:07,632 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-13 13:36:07,632 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-13 13:36:07,632 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-13 13:36:07,632 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-13 13:36:07,633 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-13 13:36:07,633 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-13 13:36:07,633 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-13 13:36:07,633 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-13 13:36:07,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 13:36:07,634 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-13 13:36:07,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-13 13:36:07,635 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-13 13:36:07,636 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-13 13:36:07,636 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-13 13:36:07,636 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-13 13:36:07,636 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-13 13:36:07,636 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-13 13:36:07,637 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-13 13:36:07,637 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-13 13:36:07,637 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-13 13:36:07,637 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-13 13:36:07,638 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2024-08-13 13:36:07,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-13 13:36:07,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-13 13:36:08,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-13 13:36:08,003 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-13 13:36:08,003 INFO L274 PluginConnector]: CDTParser initialized [2024-08-13 13:36:08,004 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-08-13 13:36:09,605 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-13 13:36:10,099 INFO L384 CDTParser]: Found 1 translation units. [2024-08-13 13:36:10,101 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-08-13 13:36:10,149 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6c0c4778a/b97fb2a7f11945f8bed8d66fa08b6059/FLAGeda6d15e9 [2024-08-13 13:36:10,167 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6c0c4778a/b97fb2a7f11945f8bed8d66fa08b6059 [2024-08-13 13:36:10,170 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-13 13:36:10,171 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-13 13:36:10,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/char_generic_nvram_read_nvram_write_nvram.yml/witness.yml [2024-08-13 13:36:10,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-13 13:36:10,317 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-13 13:36:10,319 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-13 13:36:10,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-13 13:36:10,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-13 13:36:10,327 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:36:10" (1/2) ... [2024-08-13 13:36:10,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78e1fd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:36:10, skipping insertion in model container [2024-08-13 13:36:10,328 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:36:10" (1/2) ... [2024-08-13 13:36:10,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@19a82e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:36:10, skipping insertion in model container [2024-08-13 13:36:10,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 01:36:10" (2/2) ... [2024-08-13 13:36:10,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78e1fd28 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 01:36:10, skipping insertion in model container [2024-08-13 13:36:10,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 01:36:10" (2/2) ... [2024-08-13 13:36:10,330 INFO L81 nessWitnessExtractor]: Only extracting loop invariants from correctness witness [2024-08-13 13:36:10,374 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-13 13:36:10,375 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-13 13:36:10,375 INFO L106 edCorrectnessWitness]: ghost_update [L6883-L6883] multithreaded = 1; [2024-08-13 13:36:10,477 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-13 13:36:10,822 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2024-08-13 13:36:13,965 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 13:36:13,987 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-08-13 13:36:14,037 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2024-08-13 13:36:14,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2024-08-13 13:36:14,153 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2024-08-13 13:36:14,153 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2024-08-13 13:36:14,153 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2024-08-13 13:36:14,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] Start Parsing Local [2024-08-13 13:36:14,412 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 13:36:14,892 ERROR L334 MainTranslator]: Unsupported Syntax: The following functions are not defined or handled internally: ____ilog2_NaN [2024-08-13 13:36:14,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@19a82e6b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 01:36:14, skipping insertion in model container [2024-08-13 13:36:14,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-13 13:36:14,893 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-08-13 13:36:14,894 INFO L158 Benchmark]: Toolchain (without parser) took 4576.75ms. Allocated memory was 65.0MB in the beginning and 153.1MB in the end (delta: 88.1MB). Free memory was 39.6MB in the beginning and 49.8MB in the end (delta: -10.3MB). Peak memory consumption was 99.4MB. Max. memory is 16.1GB. [2024-08-13 13:36:14,895 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 39.8MB. Free memory was 16.5MB in the beginning and 16.4MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 13:36:14,895 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 65.0MB. Free memory is still 31.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 13:36:14,896 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4573.51ms. Allocated memory was 65.0MB in the beginning and 153.1MB in the end (delta: 88.1MB). Free memory was 39.4MB in the beginning and 49.8MB in the end (delta: -10.5MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. [2024-08-13 13:36:14,898 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 39.8MB. Free memory was 16.5MB in the beginning and 16.4MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.17ms. Allocated memory is still 65.0MB. Free memory is still 31.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4573.51ms. Allocated memory was 65.0MB in the beginning and 153.1MB in the end (delta: 88.1MB). Free memory was 39.4MB in the beginning and 49.8MB in the end (delta: -10.5MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 5814]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] - UnsupportedSyntaxResult [Line: -1]: Unsupported Syntax The following functions are not defined or handled internally: ____ilog2_NaN RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN