./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.2024-06-19_11-23-25.files/mutex-meet-rel/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2cc22fce 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.2024-06-19_11-23-25.files/mutex-meet-rel/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.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-2cc22fc-m [2024-07-22 16:42:29,146 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-22 16:42:29,207 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-22 16:42:29,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-22 16:42:29,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-22 16:42:29,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-22 16:42:29,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-22 16:42:29,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-22 16:42:29,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-22 16:42:29,239 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-22 16:42:29,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-22 16:42:29,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-22 16:42:29,240 INFO L153 SettingsManager]: * Use SBE=true [2024-07-22 16:42:29,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-22 16:42:29,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-22 16:42:29,242 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-22 16:42:29,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-22 16:42:29,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-22 16:42:29,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-22 16:42:29,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-22 16:42:29,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-22 16:42:29,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-22 16:42:29,244 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-22 16:42:29,244 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-22 16:42:29,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-22 16:42:29,245 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-22 16:42:29,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-22 16:42:29,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-22 16:42:29,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-22 16:42:29,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-22 16:42:29,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-22 16:42:29,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-22 16:42:29,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-22 16:42:29,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-22 16:42:29,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-22 16:42:29,248 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-22 16:42:29,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-22 16:42:29,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-22 16:42:29,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-22 16:42:29,248 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-22 16:42:29,248 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-22 16:42:29,249 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-22 16:42:29,249 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-07-22 16:42:29,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-22 16:42:29,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-22 16:42:29,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-22 16:42:29,463 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-22 16:42:29,464 INFO L274 PluginConnector]: CDTParser initialized [2024-07-22 16:42:29,465 INFO L431 ainManager$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 [2024-07-22 16:42:30,471 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-22 16:42:30,867 INFO L384 CDTParser]: Found 1 translation units. [2024-07-22 16:42:30,868 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2024-07-22 16:42:30,903 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3305eb727/75fb52083a7e4ba9a0c12a64901700df/FLAGf435a0b92 [2024-07-22 16:42:30,916 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3305eb727/75fb52083a7e4ba9a0c12a64901700df [2024-07-22 16:42:30,918 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-07-22 16:42:30,918 INFO L274 PluginConnector]: Witness Parser initialized [2024-07-22 16:42:30,921 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.yml/witness.yml [2024-07-22 16:42:30,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-22 16:42:30,999 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-07-22 16:42:31,000 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-22 16:42:31,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-22 16:42:31,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-22 16:42:31,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 04:42:30" (1/2) ... [2024-07-22 16:42:31,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c68d946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:42:31, skipping insertion in model container [2024-07-22 16:42:31,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 04:42:30" (1/2) ... [2024-07-22 16:42:31,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5878809c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:42:31, skipping insertion in model container [2024-07-22 16:42:31,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.07 04:42:30" (2/2) ... [2024-07-22 16:42:31,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c68d946 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 04:42:31, skipping insertion in model container [2024-07-22 16:42:31,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.07 04:42:30" (2/2) ... [2024-07-22 16:42:31,009 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-07-22 16:42:31,073 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-07-22 16:42:31,074 INFO L97 edCorrectnessWitness]: Location invariant before [L6862-L6862] ! multithreaded || ((((((-4LL + (long long )default_alloc_size) + (long long )nvram_len >= 0LL && (2147483648LL + (long long )nvram_len) + (long long )whoop_int >= 0LL) && (0LL - (long long )jiffies) + (long long )nvram_len >= 0LL) && (4LL - (long long )default_alloc_size) + (long long )nvram_len >= 0LL) && (long long )jiffies + (long long )nvram_len >= 0LL) && (2147483647LL + (long long )nvram_len) - (long long )whoop_int >= 0LL) [2024-07-22 16:42:31,074 INFO L97 edCorrectnessWitness]: Location invariant before [L6863-L6863] ! multithreaded || ((((((-4LL + (long long )default_alloc_size) + (long long )nvram_len >= 0LL && (2147483648LL + (long long )nvram_len) + (long long )whoop_int >= 0LL) && (0LL - (long long )jiffies) + (long long )nvram_len >= 0LL) && (4LL - (long long )default_alloc_size) + (long long )nvram_len >= 0LL) && (long long )jiffies + (long long )nvram_len >= 0LL) && (2147483647LL + (long long )nvram_len) - (long long )whoop_int >= 0LL) [2024-07-22 16:42:31,074 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-07-22 16:42:31,074 INFO L106 edCorrectnessWitness]: ghost_update [L6861-L6861] multithreaded = 1; [2024-07-22 16:42:31,174 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-22 16:42:31,446 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] [2024-07-22 16:42:34,553 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-22 16:42:34,564 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-07-22 16:42:34,606 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] [2024-07-22 16:42:34,695 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] [2024-07-22 16:42:34,697 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] [2024-07-22 16:42:34,697 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] [2024-07-22 16:42:34,697 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] [2024-07-22 16:42:34,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] Start Parsing Local Start Parsing Local Start Parsing Local [2024-07-22 16:42:34,828 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-22 16:42:35,214 ERROR L334 MainTranslator]: Unsupported Syntax: The following functions are not defined or handled internally: ____ilog2_NaN [2024-07-22 16:42:35,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5878809c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 04:42:35, skipping insertion in model container [2024-07-22 16:42:35,215 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-22 16:42:35,216 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-07-22 16:42:35,217 INFO L158 Benchmark]: Toolchain (without parser) took 4217.74ms. Allocated memory was 144.7MB in the beginning and 216.0MB in the end (delta: 71.3MB). Free memory was 78.3MB in the beginning and 104.3MB in the end (delta: -25.9MB). Peak memory consumption was 99.6MB. Max. memory is 16.1GB. [2024-07-22 16:42:35,217 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 144.7MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-07-22 16:42:35,218 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 144.7MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-07-22 16:42:35,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4215.62ms. Allocated memory was 144.7MB in the beginning and 216.0MB in the end (delta: 71.3MB). Free memory was 78.1MB in the beginning and 104.3MB in the end (delta: -26.2MB). Peak memory consumption was 99.6MB. Max. memory is 16.1GB. [2024-07-22 16:42:35,220 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 144.7MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 144.7MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4215.62ms. Allocated memory was 144.7MB in the beginning and 216.0MB in the end (delta: 71.3MB). Free memory was 78.1MB in the beginning and 104.3MB in the end (delta: -26.2MB). Peak memory consumption was 99.6MB. 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: ____ilog2_NaN RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/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.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-2cc22fc-m [2024-07-22 16:42:37,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-22 16:42:37,590 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-07-22 16:42:37,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-22 16:42:37,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-22 16:42:37,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-22 16:42:37,628 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-22 16:42:37,629 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-22 16:42:37,629 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-22 16:42:37,632 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-22 16:42:37,633 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-22 16:42:37,633 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-22 16:42:37,633 INFO L153 SettingsManager]: * Use SBE=true [2024-07-22 16:42:37,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-22 16:42:37,635 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-22 16:42:37,635 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-22 16:42:37,635 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-22 16:42:37,635 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-22 16:42:37,636 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-22 16:42:37,636 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-22 16:42:37,636 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-22 16:42:37,637 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-07-22 16:42:37,637 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-22 16:42:37,637 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-07-22 16:42:37,637 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-22 16:42:37,638 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-22 16:42:37,638 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-22 16:42:37,638 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-22 16:42:37,638 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-22 16:42:37,638 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-22 16:42:37,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-22 16:42:37,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-22 16:42:37,640 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-22 16:42:37,640 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-22 16:42:37,640 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-22 16:42:37,640 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-07-22 16:42:37,641 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-22 16:42:37,641 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-07-22 16:42:37,641 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-22 16:42:37,642 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-22 16:42:37,642 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-22 16:42:37,642 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-22 16:42:37,642 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-22 16:42:37,642 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-07-22 16:42:37,643 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-07-22 16:42:37,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-22 16:42:37,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-22 16:42:37,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-22 16:42:37,884 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-07-22 16:42:37,885 INFO L274 PluginConnector]: Witness Parser initialized [2024-07-22 16:42:37,886 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.yml/witness.yml [2024-07-22 16:42:37,942 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-22 16:42:37,942 INFO L274 PluginConnector]: CDTParser initialized [2024-07-22 16:42:37,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2024-07-22 16:42:39,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-22 16:42:39,455 INFO L384 CDTParser]: Found 1 translation units. [2024-07-22 16:42:39,456 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2024-07-22 16:42:39,485 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b4f5dcca0/261950bf8e05417d8251b67af6b17a39/FLAG70f7c1e40 [2024-07-22 16:42:39,496 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b4f5dcca0/261950bf8e05417d8251b67af6b17a39 [2024-07-22 16:42:39,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-22 16:42:39,498 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-07-22 16:42:39,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-22 16:42:39,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-22 16:42:39,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-22 16:42:39,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.07 04:42:37" (1/2) ... [2024-07-22 16:42:39,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a05b9c3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 04:42:39, skipping insertion in model container [2024-07-22 16:42:39,505 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.07 04:42:37" (1/2) ... [2024-07-22 16:42:39,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@17a7700f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 04:42:39, skipping insertion in model container [2024-07-22 16:42:39,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 04:42:39" (2/2) ... [2024-07-22 16:42:39,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a05b9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:42:39, skipping insertion in model container [2024-07-22 16:42:39,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 04:42:39" (2/2) ... [2024-07-22 16:42:39,506 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-07-22 16:42:39,575 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-07-22 16:42:39,576 INFO L97 edCorrectnessWitness]: Location invariant before [L6862-L6862] ! multithreaded || ((((((-4LL + (long long )default_alloc_size) + (long long )nvram_len >= 0LL && (2147483648LL + (long long )nvram_len) + (long long )whoop_int >= 0LL) && (0LL - (long long )jiffies) + (long long )nvram_len >= 0LL) && (4LL - (long long )default_alloc_size) + (long long )nvram_len >= 0LL) && (long long )jiffies + (long long )nvram_len >= 0LL) && (2147483647LL + (long long )nvram_len) - (long long )whoop_int >= 0LL) [2024-07-22 16:42:39,576 INFO L97 edCorrectnessWitness]: Location invariant before [L6863-L6863] ! multithreaded || ((((((-4LL + (long long )default_alloc_size) + (long long )nvram_len >= 0LL && (2147483648LL + (long long )nvram_len) + (long long )whoop_int >= 0LL) && (0LL - (long long )jiffies) + (long long )nvram_len >= 0LL) && (4LL - (long long )default_alloc_size) + (long long )nvram_len >= 0LL) && (long long )jiffies + (long long )nvram_len >= 0LL) && (2147483647LL + (long long )nvram_len) - (long long )whoop_int >= 0LL) [2024-07-22 16:42:39,576 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-07-22 16:42:39,576 INFO L106 edCorrectnessWitness]: ghost_update [L6861-L6861] multithreaded = 1; [2024-07-22 16:42:39,652 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-22 16:42:39,930 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] [2024-07-22 16:42:42,337 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-22 16:42:42,354 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-07-22 16:42:42,384 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] [2024-07-22 16:42:42,497 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] [2024-07-22 16:42:42,499 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] [2024-07-22 16:42:42,499 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] [2024-07-22 16:42:42,499 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] [2024-07-22 16:42:42,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] Start Parsing Local Start Parsing Local Start Parsing Local [2024-07-22 16:42:42,667 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-22 16:42:42,953 ERROR L334 MainTranslator]: Unsupported Syntax: The following functions are not defined or handled internally: ____ilog2_NaN [2024-07-22 16:42:42,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@17a7700f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:42:42, skipping insertion in model container [2024-07-22 16:42:42,953 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-22 16:42:42,954 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-07-22 16:42:42,955 INFO L158 Benchmark]: Toolchain (without parser) took 3456.76ms. Allocated memory was 77.6MB in the beginning and 146.8MB in the end (delta: 69.2MB). Free memory was 36.8MB in the beginning and 75.8MB in the end (delta: -39.0MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. [2024-07-22 16:42:42,955 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 50.3MB. Free memory was 27.0MB in the beginning and 26.9MB in the end (delta: 40.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-07-22 16:42:42,956 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-07-22 16:42:42,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3454.14ms. Allocated memory was 77.6MB in the beginning and 146.8MB in the end (delta: 69.2MB). Free memory was 36.5MB in the beginning and 75.8MB in the end (delta: -39.2MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. [2024-07-22 16:42:42,957 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 50.3MB. Free memory was 27.0MB in the beginning and 26.9MB in the end (delta: 40.2kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3454.14ms. Allocated memory was 77.6MB in the beginning and 146.8MB in the end (delta: 69.2MB). Free memory was 36.5MB in the beginning and 75.8MB in the end (delta: -39.2MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 5814]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] - UnsupportedSyntaxResult [Line: -1]: Unsupported Syntax The following functions are not defined or handled internally: ____ilog2_NaN RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN