./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 --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/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30012893862a7e15af8bbbaf0239dbd2e8b93523943e1ee06536b5f9fb75a514 --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 19:45:51,914 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 19:45:51,970 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 19:45:51,975 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 19:45:51,975 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 19:45:52,000 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 19:45:52,001 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 19:45:52,001 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 19:45:52,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 19:45:52,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 19:45:52,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 19:45:52,002 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 19:45:52,003 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 19:45:52,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 19:45:52,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 19:45:52,017 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 19:45:52,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 19:45:52,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 19:45:52,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 19:45:52,018 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 19:45:52,018 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 19:45:52,019 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 19:45:52,019 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 19:45:52,019 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 19:45:52,019 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 19:45:52,020 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 19:45:52,020 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 19:45:52,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 19:45:52,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 19:45:52,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 19:45:52,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 19:45:52,021 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 19:45:52,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 19:45:52,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 19:45:52,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 19:45:52,021 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 19:45:52,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 19:45:52,022 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 19:45:52,022 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 19:45:52,022 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 19:45:52,025 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 19:45:52,026 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30012893862a7e15af8bbbaf0239dbd2e8b93523943e1ee06536b5f9fb75a514 [2024-09-08 19:45:52,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 19:45:52,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 19:45:52,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 19:45:52,251 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 19:45:52,252 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 19:45:52,253 INFO L431 ainManager$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 19:45:53,578 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 19:45:53,985 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 19:45:53,986 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 19:45:54,025 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/48cb6d91c/f96ae2b7a4e24293ad2a35b17104f845/FLAG1f2dd4464 [2024-09-08 19:45:54,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/48cb6d91c/f96ae2b7a4e24293ad2a35b17104f845 [2024-09-08 19:45:54,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 19:45:54,043 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-08 19:45:54,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 19:45:54,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 19:45:54,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 19:45:54,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 07:45:54" (1/1) ... [2024-09-08 19:45:54,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713fa278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:45:54, skipping insertion in model container [2024-09-08 19:45:54,051 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 07:45:54" (1/1) ... [2024-09-08 19:45:54,132 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 19:45:54,411 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 19:45:58,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 19:45:58,272 INFO L200 MainTranslator]: Completed pre-run [2024-09-08 19:45:58,286 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 19:45:58,363 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 19:45:58,364 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 19:45:58,364 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 19:45:58,364 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 19:45:58,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2024-09-08 19:45:58,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 19:45:58,896 ERROR L321 MainTranslator]: Unsupported Syntax: The following functions are not defined or handled internally: ____ilog2_NaN [2024-09-08 19:45:58,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5aebf250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:45:58, skipping insertion in model container [2024-09-08 19:45:58,897 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 19:45:58,897 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-09-08 19:45:58,899 INFO L158 Benchmark]: Toolchain (without parser) took 4855.99ms. Allocated memory was 197.1MB in the beginning and 278.9MB in the end (delta: 81.8MB). Free memory was 159.8MB in the beginning and 147.3MB in the end (delta: 12.5MB). Peak memory consumption was 130.5MB. Max. memory is 16.1GB. [2024-09-08 19:45:58,899 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 19:45:58,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4853.57ms. Allocated memory was 197.1MB in the beginning and 278.9MB in the end (delta: 81.8MB). Free memory was 158.9MB in the beginning and 147.3MB in the end (delta: 11.7MB). Peak memory consumption was 130.5MB. Max. memory is 16.1GB. [2024-09-08 19:45:58,900 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4853.57ms. Allocated memory was 197.1MB in the beginning and 278.9MB in the end (delta: 81.8MB). Free memory was 158.9MB in the beginning and 147.3MB in the end (delta: 11.7MB). Peak memory consumption was 130.5MB. 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/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30012893862a7e15af8bbbaf0239dbd2e8b93523943e1ee06536b5f9fb75a514 --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 19:46:00,595 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 19:46:00,659 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-09-08 19:46:00,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 19:46:00,663 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 19:46:00,689 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 19:46:00,689 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 19:46:00,690 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 19:46:00,690 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 19:46:00,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 19:46:00,691 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 19:46:00,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 19:46:00,691 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 19:46:00,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 19:46:00,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 19:46:00,692 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 19:46:00,692 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 19:46:00,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 19:46:00,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 19:46:00,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 19:46:00,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 19:46:00,697 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-08 19:46:00,697 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 19:46:00,697 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-08 19:46:00,697 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 19:46:00,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 19:46:00,697 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 19:46:00,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 19:46:00,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 19:46:00,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 19:46:00,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 19:46:00,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 19:46:00,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 19:46:00,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 19:46:00,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 19:46:00,699 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-08 19:46:00,699 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 19:46:00,699 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-08 19:46:00,700 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 19:46:00,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 19:46:00,702 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 19:46:00,703 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 19:46:00,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-08 19:46:00,703 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30012893862a7e15af8bbbaf0239dbd2e8b93523943e1ee06536b5f9fb75a514 [2024-09-08 19:46:00,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 19:46:01,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 19:46:01,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 19:46:01,019 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 19:46:01,019 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 19:46:01,020 INFO L431 ainManager$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 19:46:02,379 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 19:46:02,792 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 19:46:02,792 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 19:46:02,835 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9cd64862b/28f2f1d2ce5d413d85651be9a27417e7/FLAGafee8c663 [2024-09-08 19:46:02,851 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9cd64862b/28f2f1d2ce5d413d85651be9a27417e7 [2024-09-08 19:46:02,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 19:46:02,854 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-08 19:46:02,856 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 19:46:02,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 19:46:02,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 19:46:02,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 07:46:02" (1/1) ... [2024-09-08 19:46:02,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4068647c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:46:02, skipping insertion in model container [2024-09-08 19:46:02,863 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 07:46:02" (1/1) ... [2024-09-08 19:46:02,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 19:46:03,241 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 19:46:06,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 19:46:06,513 INFO L200 MainTranslator]: Completed pre-run [2024-09-08 19:46:06,525 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 19:46:06,578 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 19:46:06,580 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 19:46:06,580 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 19:46:06,581 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 19:46:06,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2024-09-08 19:46:06,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 19:46:07,124 ERROR L321 MainTranslator]: Unsupported Syntax: The following functions are not defined or handled internally: ____ilog2_NaN [2024-09-08 19:46:07,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2b90cceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:46:07, skipping insertion in model container [2024-09-08 19:46:07,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 19:46:07,125 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-09-08 19:46:07,127 INFO L158 Benchmark]: Toolchain (without parser) took 4271.78ms. Allocated memory was 88.1MB in the beginning and 195.0MB in the end (delta: 107.0MB). Free memory was 41.9MB in the beginning and 135.2MB in the end (delta: -93.3MB). Peak memory consumption was 111.0MB. Max. memory is 16.1GB. [2024-09-08 19:46:07,127 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 19:46:07,128 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4269.37ms. Allocated memory was 88.1MB in the beginning and 195.0MB in the end (delta: 107.0MB). Free memory was 41.6MB in the beginning and 135.2MB in the end (delta: -93.5MB). Peak memory consumption was 111.0MB. Max. memory is 16.1GB. [2024-09-08 19:46:07,128 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 88.1MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4269.37ms. Allocated memory was 88.1MB in the beginning and 195.0MB in the end (delta: 107.0MB). Free memory was 41.6MB in the beginning and 135.2MB in the end (delta: -93.5MB). Peak memory consumption was 111.0MB. 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