./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b03bd7cf 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 ../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e2e7bb75a4a041a1b509d755288a88858836cab5db2230ae4fd0db7ec04fe254 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-b03bd7c-m [2024-10-29 00:23:37,384 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-29 00:23:37,459 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2024-10-29 00:23:37,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-29 00:23:37,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-29 00:23:37,493 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-29 00:23:37,494 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-29 00:23:37,494 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-29 00:23:37,495 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-29 00:23:37,495 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-29 00:23:37,496 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-29 00:23:37,496 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-29 00:23:37,496 INFO L153 SettingsManager]: * Use SBE=true [2024-10-29 00:23:37,497 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-29 00:23:37,497 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-29 00:23:37,497 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-29 00:23:37,498 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-29 00:23:37,498 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-29 00:23:37,498 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-29 00:23:37,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-29 00:23:37,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-29 00:23:37,500 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-29 00:23:37,500 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-29 00:23:37,500 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-29 00:23:37,501 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-29 00:23:37,501 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-29 00:23:37,501 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-29 00:23:37,501 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-29 00:23:37,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-29 00:23:37,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-29 00:23:37,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-29 00:23:37,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-29 00:23:37,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-29 00:23:37,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-29 00:23:37,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-29 00:23:37,504 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-29 00:23:37,504 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-29 00:23:37,504 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-29 00:23:37,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-29 00:23:37,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-29 00:23:37,505 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-29 00:23:37,506 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-29 00:23:37,506 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-29 00:23:37,506 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-29 00:23:37,506 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2e7bb75a4a041a1b509d755288a88858836cab5db2230ae4fd0db7ec04fe254 [2024-10-29 00:23:37,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-29 00:23:37,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-29 00:23:37,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-29 00:23:37,772 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-29 00:23:37,773 INFO L274 PluginConnector]: CDTParser initialized [2024-10-29 00:23:37,775 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-10-29 00:23:39,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-29 00:23:39,617 INFO L384 CDTParser]: Found 1 translation units. [2024-10-29 00:23:39,618 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-10-29 00:23:39,664 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/fa3c75367/338c2bf425fc415c9312d89fcf7f503b/FLAGa63ab2052 [2024-10-29 00:23:39,678 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/fa3c75367/338c2bf425fc415c9312d89fcf7f503b [2024-10-29 00:23:39,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-29 00:23:39,683 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-29 00:23:39,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-29 00:23:39,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-29 00:23:39,690 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-29 00:23:39,691 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:23:39" (1/1) ... [2024-10-29 00:23:39,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b49776c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:23:39, skipping insertion in model container [2024-10-29 00:23:39,694 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:23:39" (1/1) ... [2024-10-29 00:23:39,820 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-29 00:23:42,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-29 00:23:42,797 INFO L200 MainTranslator]: Completed pre-run [2024-10-29 00:23:42,975 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] [2024-10-29 00:23:42,977 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] [2024-10-29 00:23:42,977 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] [2024-10-29 00:23:42,978 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] [2024-10-29 00:23:43,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2024-10-29 00:23:43,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-29 00:23:43,639 ERROR L321 MainTranslator]: Unsupported Syntax: The following functions are not defined or handled internally: __xchg_wrong_size, ____ilog2_NaN [2024-10-29 00:23:43,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4c2ff67f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:23:43, skipping insertion in model container [2024-10-29 00:23:43,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-29 00:23:43,641 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-29 00:23:43,643 INFO L158 Benchmark]: Toolchain (without parser) took 3958.70ms. Allocated memory was 176.2MB in the beginning and 274.7MB in the end (delta: 98.6MB). Free memory was 95.9MB in the beginning and 192.4MB in the end (delta: -96.5MB). Peak memory consumption was 94.5MB. Max. memory is 16.1GB. [2024-10-29 00:23:43,643 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 113.2MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-29 00:23:43,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3956.58ms. Allocated memory was 176.2MB in the beginning and 274.7MB in the end (delta: 98.6MB). Free memory was 95.7MB in the beginning and 192.4MB in the end (delta: -96.8MB). Peak memory consumption was 94.5MB. Max. memory is 16.1GB. [2024-10-29 00:23:43,646 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 113.2MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3956.58ms. Allocated memory was 176.2MB in the beginning and 274.7MB in the end (delta: 98.6MB). Free memory was 95.7MB in the beginning and 192.4MB in the end (delta: -96.8MB). Peak memory consumption was 94.5MB. 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: __xchg_wrong_size, ____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 ../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e2e7bb75a4a041a1b509d755288a88858836cab5db2230ae4fd0db7ec04fe254 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-b03bd7c-m [2024-10-29 00:23:45,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-29 00:23:45,713 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Overflow-32bit-GemCutter_Bitvector.epf [2024-10-29 00:23:45,718 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-29 00:23:45,719 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-29 00:23:45,747 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-29 00:23:45,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-29 00:23:45,751 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-29 00:23:45,752 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-29 00:23:45,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-29 00:23:45,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-29 00:23:45,754 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-29 00:23:45,755 INFO L153 SettingsManager]: * Use SBE=true [2024-10-29 00:23:45,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-29 00:23:45,757 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-29 00:23:45,757 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-29 00:23:45,758 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-29 00:23:45,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-29 00:23:45,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-29 00:23:45,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-29 00:23:45,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-29 00:23:45,760 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-29 00:23:45,761 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-29 00:23:45,761 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-29 00:23:45,761 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-29 00:23:45,762 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-29 00:23:45,762 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-29 00:23:45,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-29 00:23:45,762 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-29 00:23:45,763 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-29 00:23:45,763 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-29 00:23:45,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-29 00:23:45,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-29 00:23:45,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-29 00:23:45,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-29 00:23:45,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-29 00:23:45,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-29 00:23:45,766 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-29 00:23:45,766 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-29 00:23:45,766 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-29 00:23:45,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-29 00:23:45,767 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-29 00:23:45,767 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-29 00:23:45,767 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-29 00:23:45,768 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-29 00:23:45,768 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-29 00:23:45,768 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2e7bb75a4a041a1b509d755288a88858836cab5db2230ae4fd0db7ec04fe254 [2024-10-29 00:23:46,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-29 00:23:46,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-29 00:23:46,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-29 00:23:46,130 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-29 00:23:46,132 INFO L274 PluginConnector]: CDTParser initialized [2024-10-29 00:23:46,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-10-29 00:23:47,736 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-29 00:23:48,237 INFO L384 CDTParser]: Found 1 translation units. [2024-10-29 00:23:48,241 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-10-29 00:23:48,290 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/5c7eb8381/12bfae1e54284f9bb0e0470ffb598592/FLAG0705d05c7 [2024-10-29 00:23:48,303 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/5c7eb8381/12bfae1e54284f9bb0e0470ffb598592 [2024-10-29 00:23:48,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-29 00:23:48,307 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-29 00:23:48,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-29 00:23:48,308 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-29 00:23:48,313 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-29 00:23:48,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:23:48" (1/1) ... [2024-10-29 00:23:48,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c4166e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:23:48, skipping insertion in model container [2024-10-29 00:23:48,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:23:48" (1/1) ... [2024-10-29 00:23:48,416 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-29 00:23:51,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-29 00:23:51,541 INFO L200 MainTranslator]: Completed pre-run [2024-10-29 00:23:51,670 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] [2024-10-29 00:23:51,672 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] [2024-10-29 00:23:51,672 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] [2024-10-29 00:23:51,672 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] [2024-10-29 00:23:51,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2024-10-29 00:23:51,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-29 00:23:52,307 ERROR L321 MainTranslator]: Unsupported Syntax: The following functions are not defined or handled internally: __xchg_wrong_size, ____ilog2_NaN [2024-10-29 00:23:52,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@58ff99dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:23:52, skipping insertion in model container [2024-10-29 00:23:52,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-29 00:23:52,314 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-29 00:23:52,316 INFO L158 Benchmark]: Toolchain (without parser) took 4008.18ms. Allocated memory was 62.9MB in the beginning and 125.8MB in the end (delta: 62.9MB). Free memory was 29.6MB in the beginning and 69.8MB in the end (delta: -40.2MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. [2024-10-29 00:23:52,316 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 46.1MB. Free memory is still 22.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-29 00:23:52,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4006.03ms. Allocated memory was 62.9MB in the beginning and 125.8MB in the end (delta: 62.9MB). Free memory was 29.4MB in the beginning and 69.8MB in the end (delta: -40.3MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. [2024-10-29 00:23:52,319 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 46.1MB. Free memory is still 22.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4006.03ms. Allocated memory was 62.9MB in the beginning and 125.8MB in the end (delta: 62.9MB). Free memory was 29.4MB in the beginning and 69.8MB in the end (delta: -40.3MB). Peak memory consumption was 70.6MB. 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: __xchg_wrong_size, ____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