./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/protection-ghost/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 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_nvram_unlocked_ioctl.i ./goblint.2024-09-02_08-21-23.files/protection-ghost/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 11:59:21,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 11:59:21,608 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 11:59:21,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 11:59:21,612 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 11:59:21,645 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 11:59:21,646 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 11:59:21,648 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 11:59:21,648 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 11:59:21,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 11:59:21,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 11:59:21,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 11:59:21,650 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 11:59:21,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 11:59:21,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 11:59:21,651 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 11:59:21,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 11:59:21,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 11:59:21,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 11:59:21,654 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 11:59:21,654 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 11:59:21,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 11:59:21,656 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 11:59:21,656 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 11:59:21,656 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 11:59:21,657 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 11:59:21,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 11:59:21,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 11:59:21,657 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 11:59:21,658 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 11:59:21,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 11:59:21,658 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 11:59:21,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 11:59:21,658 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 11:59:21,659 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 11:59:21,659 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 11:59:21,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 11:59:21,661 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 11:59:21,661 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 11:59:21,661 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 11:59:21,662 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 11:59:21,663 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 11:59:21,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 11:59:21,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 11:59:21,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 11:59:21,948 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 11:59:21,949 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 11:59:21,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2024-09-08 11:59:23,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 11:59:23,758 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 11:59:23,759 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2024-09-08 11:59:23,802 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1b4af07f8/47bf0598d9d2401d9de8c4d0128f7865/FLAG45d65e8d9 [2024-09-08 11:59:23,819 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1b4af07f8/47bf0598d9d2401d9de8c4d0128f7865 [2024-09-08 11:59:23,821 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 11:59:23,822 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 11:59:23,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/protection-ghost/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.yml/witness.yml [2024-09-08 11:59:23,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 11:59:23,894 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 11:59:23,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 11:59:23,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 11:59:23,902 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 11:59:23,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:59:23" (1/2) ... [2024-09-08 11:59:23,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698ad452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:59:23, skipping insertion in model container [2024-09-08 11:59:23,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:59:23" (1/2) ... [2024-09-08 11:59:23,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2f24280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:59:23, skipping insertion in model container [2024-09-08 11:59:23,906 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 11:59:23" (2/2) ... [2024-09-08 11:59:23,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698ad452 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 11:59:23, skipping insertion in model container [2024-09-08 11:59:23,906 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 11:59:23" (2/2) ... [2024-09-08 11:59:24,080 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 11:59:24,081 INFO L1541 ArrayList]: Location invariant before [L6863-L6863] (((((! multithreaded || jiffies == 0UL) && (! multithreaded || _whoop_exit == & nvram_cleanup)) && (! multithreaded || 0 <= whoop_int)) && (! multithreaded || (unsigned int )default_alloc_size == 4U)) && (! multithreaded || _whoop_init == & nvram_init)) && (! multithreaded || ((((((((((((((((((((((((nvram_fops.check_flags == 0 && nvram_fops.compat_ioctl == 0) && nvram_fops.dir_notify == 0) && nvram_fops.fasync == 0) && nvram_fops.flock == 0) && nvram_fops.flush == 0) && nvram_fops.fsync == 0) && nvram_fops.get_unmapped_area == 0) && nvram_fops.ioctl == 0) && nvram_fops.llseek == & nvram_llseek) && nvram_fops.lock == 0) && nvram_fops.mmap == 0) && nvram_fops.open == 0) && nvram_fops.open_exec == 0) && nvram_fops.owner == 0) && nvram_fops.poll == 0) && nvram_fops.read == & read_nvram) && nvram_fops.readdir == 0) && nvram_fops.readv == 0) && nvram_fops.release == 0) && nvram_fops.sendfile == 0) && nvram_fops.sendpage == 0) && nvram_fops.unlocked_ioctl == & nvram_unlocked_ioctl) && nvram_fops.write == & write_nvram) && nvram_fops.writev == 0)) [2024-09-08 11:59:24,081 INFO L1541 ArrayList]: Location invariant before [L6862-L6862] (((((! multithreaded || jiffies == 0UL) && (! multithreaded || _whoop_exit == & nvram_cleanup)) && (! multithreaded || 0 <= whoop_int)) && (! multithreaded || (unsigned int )default_alloc_size == 4U)) && (! multithreaded || _whoop_init == & nvram_init)) && (! multithreaded || ((((((((((((((((((((((((nvram_fops.check_flags == 0 && nvram_fops.compat_ioctl == 0) && nvram_fops.dir_notify == 0) && nvram_fops.fasync == 0) && nvram_fops.flock == 0) && nvram_fops.flush == 0) && nvram_fops.fsync == 0) && nvram_fops.get_unmapped_area == 0) && nvram_fops.ioctl == 0) && nvram_fops.llseek == & nvram_llseek) && nvram_fops.lock == 0) && nvram_fops.mmap == 0) && nvram_fops.open == 0) && nvram_fops.open_exec == 0) && nvram_fops.owner == 0) && nvram_fops.poll == 0) && nvram_fops.read == & read_nvram) && nvram_fops.readdir == 0) && nvram_fops.readv == 0) && nvram_fops.release == 0) && nvram_fops.sendfile == 0) && nvram_fops.sendpage == 0) && nvram_fops.unlocked_ioctl == & nvram_unlocked_ioctl) && nvram_fops.write == & write_nvram) && nvram_fops.writev == 0)) [2024-09-08 11:59:24,082 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-08 11:59:24,082 INFO L1541 ArrayList]: ghost_update [L6861-L6861] multithreaded = 1; [2024-09-08 11:59:24,176 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 11:59:24,504 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_nvram_unlocked_ioctl.i[5469,5482] [2024-09-08 11:59:28,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 11:59:28,111 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local [2024-09-08 11:59:28,154 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_nvram_unlocked_ioctl.i[5469,5482] [2024-09-08 11:59:28,249 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] [2024-09-08 11:59:28,251 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] [2024-09-08 11:59:28,251 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] [2024-09-08 11:59:28,251 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] [2024-09-08 11:59:28,395 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] Start Parsing Local Start Parsing Local [2024-09-08 11:59:28,443 ERROR L321 MainTranslator]: Incorrect Syntax: Undeclared variable in ACSL expression: nvram_cleanup [2024-09-08 11:59:28,443 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2f24280 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 11:59:28, skipping insertion in model container [2024-09-08 11:59:28,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 11:59:28,444 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-09-08 11:59:28,446 INFO L158 Benchmark]: Toolchain (without parser) took 4550.49ms. Allocated memory is still 159.4MB. Free memory was 114.6MB in the beginning and 88.5MB in the end (delta: 26.0MB). Peak memory consumption was 101.8MB. Max. memory is 16.1GB. [2024-09-08 11:59:28,446 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory was 80.0MB in the beginning and 79.8MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 11:59:28,447 INFO L158 Benchmark]: Witness Parser took 1.05ms. Allocated memory is still 159.4MB. Free memory was 117.5MB in the beginning and 116.6MB in the end (delta: 875.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 11:59:28,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4548.44ms. Allocated memory is still 159.4MB. Free memory was 114.6MB in the beginning and 88.5MB in the end (delta: 26.0MB). Peak memory consumption was 101.8MB. Max. memory is 16.1GB. [2024-09-08 11:59:28,449 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory was 80.0MB in the beginning and 79.8MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 1.05ms. Allocated memory is still 159.4MB. Free memory was 117.5MB in the beginning and 116.6MB in the end (delta: 875.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4548.44ms. Allocated memory is still 159.4MB. Free memory was 114.6MB in the beginning and 88.5MB in the end (delta: 26.0MB). Peak memory consumption was 101.8MB. 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] - SyntaxErrorResult [Line: 6862]: Incorrect Syntax Undeclared variable in ACSL expression: nvram_cleanup RESULT: Ultimate could not prove your program: Incorrect Syntax 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_nvram_unlocked_ioctl.i ./goblint.2024-09-02_08-21-23.files/protection-ghost/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 11:59:30,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 11:59:30,526 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-09-08 11:59:30,531 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 11:59:30,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 11:59:30,564 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 11:59:30,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 11:59:30,567 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 11:59:30,567 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 11:59:30,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 11:59:30,571 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 11:59:30,571 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 11:59:30,571 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 11:59:30,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 11:59:30,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 11:59:30,572 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 11:59:30,573 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 11:59:30,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 11:59:30,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 11:59:30,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 11:59:30,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 11:59:30,577 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-08 11:59:30,578 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 11:59:30,578 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-08 11:59:30,578 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 11:59:30,579 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 11:59:30,579 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 11:59:30,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 11:59:30,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 11:59:30,583 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 11:59:30,583 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 11:59:30,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 11:59:30,583 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 11:59:30,584 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 11:59:30,584 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 11:59:30,584 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-08 11:59:30,584 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 11:59:30,585 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-08 11:59:30,585 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 11:59:30,585 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 11:59:30,585 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 11:59:30,586 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 11:59:30,586 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-08 11:59:30,586 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 11:59:30,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 11:59:30,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 11:59:30,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 11:59:30,922 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 11:59:30,923 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 11:59:30,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2024-09-08 11:59:32,470 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 11:59:32,997 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 11:59:32,999 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2024-09-08 11:59:33,049 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7e7a4c2dd/ff79606a24a44f168a0b7d8731712819/FLAGc44e9168b [2024-09-08 11:59:33,543 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7e7a4c2dd/ff79606a24a44f168a0b7d8731712819 [2024-09-08 11:59:33,545 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 11:59:33,545 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 11:59:33,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/protection-ghost/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.yml/witness.yml [2024-09-08 11:59:33,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 11:59:33,625 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 11:59:33,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 11:59:33,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 11:59:33,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 11:59:33,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:59:33" (1/2) ... [2024-09-08 11:59:33,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f73bf08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:59:33, skipping insertion in model container [2024-09-08 11:59:33,634 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:59:33" (1/2) ... [2024-09-08 11:59:33,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2aae38fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:59:33, skipping insertion in model container [2024-09-08 11:59:33,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 11:59:33" (2/2) ... [2024-09-08 11:59:33,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f73bf08 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 11:59:33, skipping insertion in model container [2024-09-08 11:59:33,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 11:59:33" (2/2) ... [2024-09-08 11:59:33,853 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 11:59:33,854 INFO L1541 ArrayList]: Location invariant before [L6862-L6862] (((((! multithreaded || jiffies == 0UL) && (! multithreaded || _whoop_exit == & nvram_cleanup)) && (! multithreaded || 0 <= whoop_int)) && (! multithreaded || (unsigned int )default_alloc_size == 4U)) && (! multithreaded || _whoop_init == & nvram_init)) && (! multithreaded || ((((((((((((((((((((((((nvram_fops.check_flags == 0 && nvram_fops.compat_ioctl == 0) && nvram_fops.dir_notify == 0) && nvram_fops.fasync == 0) && nvram_fops.flock == 0) && nvram_fops.flush == 0) && nvram_fops.fsync == 0) && nvram_fops.get_unmapped_area == 0) && nvram_fops.ioctl == 0) && nvram_fops.llseek == & nvram_llseek) && nvram_fops.lock == 0) && nvram_fops.mmap == 0) && nvram_fops.open == 0) && nvram_fops.open_exec == 0) && nvram_fops.owner == 0) && nvram_fops.poll == 0) && nvram_fops.read == & read_nvram) && nvram_fops.readdir == 0) && nvram_fops.readv == 0) && nvram_fops.release == 0) && nvram_fops.sendfile == 0) && nvram_fops.sendpage == 0) && nvram_fops.unlocked_ioctl == & nvram_unlocked_ioctl) && nvram_fops.write == & write_nvram) && nvram_fops.writev == 0)) [2024-09-08 11:59:33,854 INFO L1541 ArrayList]: Location invariant before [L6863-L6863] (((((! multithreaded || jiffies == 0UL) && (! multithreaded || _whoop_exit == & nvram_cleanup)) && (! multithreaded || 0 <= whoop_int)) && (! multithreaded || (unsigned int )default_alloc_size == 4U)) && (! multithreaded || _whoop_init == & nvram_init)) && (! multithreaded || ((((((((((((((((((((((((nvram_fops.check_flags == 0 && nvram_fops.compat_ioctl == 0) && nvram_fops.dir_notify == 0) && nvram_fops.fasync == 0) && nvram_fops.flock == 0) && nvram_fops.flush == 0) && nvram_fops.fsync == 0) && nvram_fops.get_unmapped_area == 0) && nvram_fops.ioctl == 0) && nvram_fops.llseek == & nvram_llseek) && nvram_fops.lock == 0) && nvram_fops.mmap == 0) && nvram_fops.open == 0) && nvram_fops.open_exec == 0) && nvram_fops.owner == 0) && nvram_fops.poll == 0) && nvram_fops.read == & read_nvram) && nvram_fops.readdir == 0) && nvram_fops.readv == 0) && nvram_fops.release == 0) && nvram_fops.sendfile == 0) && nvram_fops.sendpage == 0) && nvram_fops.unlocked_ioctl == & nvram_unlocked_ioctl) && nvram_fops.write == & write_nvram) && nvram_fops.writev == 0)) [2024-09-08 11:59:33,854 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-08 11:59:33,854 INFO L1541 ArrayList]: ghost_update [L6861-L6861] multithreaded = 1; [2024-09-08 11:59:33,960 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 11:59:34,308 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_nvram_unlocked_ioctl.i[5469,5482] [2024-09-08 11:59:37,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 11:59:37,361 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local [2024-09-08 11:59:37,404 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_nvram_unlocked_ioctl.i[5469,5482] [2024-09-08 11:59:37,503 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] [2024-09-08 11:59:37,505 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] [2024-09-08 11:59:37,505 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] [2024-09-08 11:59:37,505 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] [2024-09-08 11:59:37,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] Start Parsing Local Start Parsing Local [2024-09-08 11:59:37,714 ERROR L321 MainTranslator]: Incorrect Syntax: Undeclared variable in ACSL expression: nvram_cleanup [2024-09-08 11:59:37,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2aae38fe and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 11:59:37, skipping insertion in model container [2024-09-08 11:59:37,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 11:59:37,718 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-09-08 11:59:37,720 INFO L158 Benchmark]: Toolchain (without parser) took 4093.51ms. Allocated memory was 73.4MB in the beginning and 125.8MB in the end (delta: 52.4MB). Free memory was 41.6MB in the beginning and 70.9MB in the end (delta: -29.3MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2024-09-08 11:59:37,720 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 48.2MB. Free memory was 29.4MB in the beginning and 29.4MB in the end (delta: 60.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 11:59:37,720 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 73.4MB. Free memory is still 44.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 11:59:37,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4091.57ms. Allocated memory was 73.4MB in the beginning and 125.8MB in the end (delta: 52.4MB). Free memory was 41.3MB in the beginning and 70.9MB in the end (delta: -29.6MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2024-09-08 11:59:37,722 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 48.2MB. Free memory was 29.4MB in the beginning and 29.4MB in the end (delta: 60.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.11ms. Allocated memory is still 73.4MB. Free memory is still 44.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4091.57ms. Allocated memory was 73.4MB in the beginning and 125.8MB in the end (delta: 52.4MB). Free memory was 41.3MB in the beginning and 70.9MB in the end (delta: -29.6MB). Peak memory consumption was 65.4MB. 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] - SyntaxErrorResult [Line: 6862]: Incorrect Syntax Undeclared variable in ACSL expression: nvram_cleanup RESULT: Ultimate could not prove your program: Incorrect Syntax Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN