./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 44c38e66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_nvram_unlocked_ioctl_write_nvram.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 e477555710806f589e2df4355d107ec5094f895ba0eeca2a28a6fd25b09e9340 --- Real Ultimate output --- This is Ultimate 0.3.0-?-44c38e6-m [2025-04-24 19:10:05,733 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 19:10:05,784 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 19:10:05,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 19:10:05,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 19:10:05,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 19:10:05,800 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 19:10:05,800 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 19:10:05,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 19:10:05,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 19:10:05,800 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 19:10:05,801 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 19:10:05,801 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 19:10:05,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 19:10:05,802 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 19:10:05,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 19:10:05,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> e477555710806f589e2df4355d107ec5094f895ba0eeca2a28a6fd25b09e9340 [2025-04-24 19:10:05,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 19:10:05,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 19:10:05,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 19:10:05,999 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 19:10:06,000 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 19:10:06,001 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2025-04-24 19:10:07,248 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/519ec0b7e/02e6ff19a1544732a71cb01c8211b824/FLAG3c95d5f8f [2025-04-24 19:10:07,663 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 19:10:07,664 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2025-04-24 19:10:07,703 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/519ec0b7e/02e6ff19a1544732a71cb01c8211b824/FLAG3c95d5f8f [2025-04-24 19:10:08,399 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/519ec0b7e/02e6ff19a1544732a71cb01c8211b824 [2025-04-24 19:10:08,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 19:10:08,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 19:10:08,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 19:10:08,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 19:10:08,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 19:10:08,406 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 07:10:08" (1/1) ... [2025-04-24 19:10:08,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e867566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:10:08, skipping insertion in model container [2025-04-24 19:10:08,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 07:10:08" (1/1) ... [2025-04-24 19:10:08,473 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 19:10:08,760 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5520,5533] [2025-04-24 19:10:12,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 19:10:12,337 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 19:10:12,353 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5520,5533] [2025-04-24 19:10:12,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-04-24 19:10:12,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-04-24 19:10:12,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-04-24 19:10:12,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-04-24 19:10:12,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2025-04-24 19:10:12,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 19:10:12,811 INFO L204 MainTranslator]: Completed translation [2025-04-24 19:10:12,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:10:12 WrapperNode [2025-04-24 19:10:12,812 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 19:10:12,813 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 19:10:12,813 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 19:10:12,813 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 19:10:12,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:10:12" (1/1) ... [2025-04-24 19:10:12,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:10:12" (1/1) ... [2025-04-24 19:10:12,922 INFO L138 Inliner]: procedures = 1352, calls = 1453, calls flagged for inlining = 352, calls inlined = 19, statements flattened = 340 [2025-04-24 19:10:12,924 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 19:10:12,925 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 19:10:12,925 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 19:10:12,925 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 19:10:12,930 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:10:12" (1/1) ... [2025-04-24 19:10:12,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:10:12" (1/1) ... [2025-04-24 19:10:12,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:10:12" (1/1) ... [2025-04-24 19:10:12,933 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:10:12" (1/1) ... [2025-04-24 19:10:12,942 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:10:12" (1/1) ... [2025-04-24 19:10:12,943 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:10:12" (1/1) ... [2025-04-24 19:10:12,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:10:12" (1/1) ... [2025-04-24 19:10:12,959 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:10:12" (1/1) ... [2025-04-24 19:10:12,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:10:12" (1/1) ... [2025-04-24 19:10:12,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 19:10:12,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 19:10:12,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 19:10:12,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 19:10:12,973 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:10:12" (1/1) ... [2025-04-24 19:10:12,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 19:10:12,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:10:12,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-24 19:10:13,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-24 19:10:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-24 19:10:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-24 19:10:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2025-04-24 19:10:13,018 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2025-04-24 19:10:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 19:10:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 19:10:13,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 19:10:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-24 19:10:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-24 19:10:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-24 19:10:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-04-24 19:10:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2025-04-24 19:10:13,019 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2025-04-24 19:10:13,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 19:10:13,020 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 19:10:13,315 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 19:10:13,317 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 19:10:13,684 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 19:10:13,684 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 19:10:14,105 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 19:10:14,106 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 19:10:14,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 07:10:14 BoogieIcfgContainer [2025-04-24 19:10:14,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 19:10:14,108 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 19:10:14,108 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 19:10:14,111 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 19:10:14,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 07:10:08" (1/3) ... [2025-04-24 19:10:14,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef262ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 07:10:14, skipping insertion in model container [2025-04-24 19:10:14,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:10:12" (2/3) ... [2025-04-24 19:10:14,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef262ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 07:10:14, skipping insertion in model container [2025-04-24 19:10:14,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 07:10:14" (3/3) ... [2025-04-24 19:10:14,114 INFO L128 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2025-04-24 19:10:14,125 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 19:10:14,129 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i that has 3 procedures, 30 locations, 34 edges, 1 initial locations, 1 loop locations, and 1 error locations. [2025-04-24 19:10:14,129 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 19:10:14,189 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-24 19:10:14,220 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 19:10:14,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 19:10:14,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:10:14,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-24 19:10:14,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-24 19:10:14,409 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 19:10:14,422 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 19:10:14,427 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7f060fe7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 19:10:14,427 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-04-24 19:10:14,789 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2025-04-24 19:10:14,790 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-04-24 19:10:14,795 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-04-24 19:10:14,797 INFO L320 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (1/2) [2025-04-24 19:10:14,801 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 19:10:14,803 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 19:10:14,806 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == whoop_wrapper_write_nvramThread1of1ForFork0 ======== [2025-04-24 19:10:14,807 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7f060fe7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 19:10:14,807 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-24 19:10:15,087 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 19:10:15,087 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:10:15,087 INFO L139 ounterexampleChecker]: Examining path program with hash 1809353383, occurence #1 [2025-04-24 19:10:15,087 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:10:15,087 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:10:15,090 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:10:15,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1507638337, now seen corresponding path program 1 times [2025-04-24 19:10:15,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:10:15,095 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778564250] [2025-04-24 19:10:15,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:10:15,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:10:15,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-24 19:10:15,271 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-24 19:10:15,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:10:15,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:10:15,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:10:15,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:10:15,724 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778564250] [2025-04-24 19:10:15,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778564250] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:10:15,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:10:15,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 19:10:15,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461077054] [2025-04-24 19:10:15,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:10:15,729 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 19:10:15,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:10:15,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 19:10:15,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 19:10:15,742 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:10:15,743 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:10:15,744 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 19:10:15,744 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:10:15,992 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:10:15,992 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-24 19:10:15,992 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 19:10:15,993 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-04-24 19:10:15,993 INFO L320 ceAbstractionStarter]: Result for error location whoop_wrapper_write_nvramThread1of1ForFork0 was SAFE (2/2) [2025-04-24 19:10:15,993 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-24 19:10:15,993 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-24 19:10:16,004 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-24 19:10:16,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.04 07:10:16 BasicIcfg [2025-04-24 19:10:16,004 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-24 19:10:16,005 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-24 19:10:16,005 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-24 19:10:16,005 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-24 19:10:16,006 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 07:10:14" (3/4) ... [2025-04-24 19:10:16,007 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-24 19:10:16,009 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_write_nvram [2025-04-24 19:10:16,009 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_nvram_unlocked_ioctl [2025-04-24 19:10:16,013 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 162 nodes and edges [2025-04-24 19:10:16,015 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2025-04-24 19:10:16,015 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2025-04-24 19:10:16,016 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-04-24 19:10:16,016 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-24 19:10:16,016 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-24 19:10:16,079 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-04-24 19:10:16,079 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-04-24 19:10:16,080 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-24 19:10:16,080 INFO L158 Benchmark]: Toolchain (without parser) took 7678.71ms. Allocated memory was 167.8MB in the beginning and 293.6MB in the end (delta: 125.8MB). Free memory was 123.1MB in the beginning and 180.4MB in the end (delta: -57.4MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2025-04-24 19:10:16,080 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 19:10:16,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4410.31ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 52.3MB in the end (delta: 70.7MB). Peak memory consumption was 129.5MB. Max. memory is 16.1GB. [2025-04-24 19:10:16,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.42ms. Allocated memory is still 167.8MB. Free memory was 52.3MB in the beginning and 42.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-24 19:10:16,081 INFO L158 Benchmark]: Boogie Preprocessor took 47.50ms. Allocated memory is still 167.8MB. Free memory was 42.9MB in the beginning and 104.4MB in the end (delta: -61.5MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2025-04-24 19:10:16,081 INFO L158 Benchmark]: RCFGBuilder took 1133.41ms. Allocated memory was 167.8MB in the beginning and 293.6MB in the end (delta: 125.8MB). Free memory was 104.4MB in the beginning and 127.5MB in the end (delta: -23.0MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. [2025-04-24 19:10:16,081 INFO L158 Benchmark]: TraceAbstraction took 1896.47ms. Allocated memory is still 293.6MB. Free memory was 127.5MB in the beginning and 187.8MB in the end (delta: -60.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 19:10:16,082 INFO L158 Benchmark]: Witness Printer took 74.84ms. Allocated memory is still 293.6MB. Free memory was 187.8MB in the beginning and 180.4MB in the end (delta: 7.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 19:10:16,083 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 201.3MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4410.31ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 52.3MB in the end (delta: 70.7MB). Peak memory consumption was 129.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.42ms. Allocated memory is still 167.8MB. Free memory was 52.3MB in the beginning and 42.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.50ms. Allocated memory is still 167.8MB. Free memory was 42.9MB in the beginning and 104.4MB in the end (delta: -61.5MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * RCFGBuilder took 1133.41ms. Allocated memory was 167.8MB in the beginning and 293.6MB in the end (delta: 125.8MB). Free memory was 104.4MB in the beginning and 127.5MB in the end (delta: -23.0MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1896.47ms. Allocated memory is still 293.6MB. Free memory was 127.5MB in the beginning and 187.8MB in the end (delta: -60.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 74.84ms. Allocated memory is still 293.6MB. Free memory was 187.8MB in the beginning and 180.4MB in the end (delta: 7.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 5817]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 197, independent: 188, independent conditional: 9, independent unconditional: 179, dependent: 9, dependent conditional: 4, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 193, independent: 188, independent conditional: 9, independent unconditional: 179, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 193, independent: 188, independent conditional: 9, independent unconditional: 179, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 193, independent: 188, independent conditional: 9, independent unconditional: 179, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 193, independent: 188, independent conditional: 0, independent unconditional: 188, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 193, independent: 188, independent conditional: 0, independent unconditional: 188, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 184, independent: 179, independent conditional: 0, independent unconditional: 179, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 184, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 6, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 328, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 288, dependent conditional: 0, dependent unconditional: 288, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 193, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 184, unknown conditional: 0, unknown unconditional: 184] , Statistics on independence cache: Total cache size (in pairs): 184, Positive cache size: 179, Positive conditional cache size: 0, Positive unconditional cache size: 179, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9, Maximal queried relation: 0, Independence queries for same thread: 4, Persistent sets #1 benchmarks: Persistent set computation time: 0.3s, Number of persistent set computation: 14, Number of trivial persistent sets: 12, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 184, independent: 179, independent conditional: 0, independent unconditional: 179, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 197, independent: 188, independent conditional: 9, independent unconditional: 179, dependent: 9, dependent conditional: 4, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 193, independent: 188, independent conditional: 9, independent unconditional: 179, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 193, independent: 188, independent conditional: 9, independent unconditional: 179, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 193, independent: 188, independent conditional: 9, independent unconditional: 179, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 193, independent: 188, independent conditional: 0, independent unconditional: 188, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 193, independent: 188, independent conditional: 0, independent unconditional: 188, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 184, independent: 179, independent conditional: 0, independent unconditional: 179, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 184, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 6, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 328, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 288, dependent conditional: 0, dependent unconditional: 288, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 193, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 184, unknown conditional: 0, unknown unconditional: 184] , Statistics on independence cache: Total cache size (in pairs): 184, Positive cache size: 179, Positive conditional cache size: 0, Positive unconditional cache size: 179, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9, Maximal queried relation: 0, Independence queries for same thread: 4 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1095, independent: 952, independent conditional: 394, independent unconditional: 558, dependent: 143, dependent conditional: 129, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 982, independent: 952, independent conditional: 394, independent unconditional: 558, dependent: 30, dependent conditional: 16, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 982, independent: 952, independent conditional: 394, independent unconditional: 558, dependent: 30, dependent conditional: 16, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 996, independent: 952, independent conditional: 394, independent unconditional: 558, dependent: 44, dependent conditional: 30, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 996, independent: 952, independent conditional: 0, independent unconditional: 952, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 996, independent: 952, independent conditional: 0, independent unconditional: 952, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 379, independent: 370, independent conditional: 0, independent unconditional: 370, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 379, independent: 370, independent conditional: 0, independent unconditional: 370, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 9, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 9, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 365, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 365, dependent conditional: 0, dependent unconditional: 365, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 996, independent: 582, independent conditional: 0, independent unconditional: 582, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 379, unknown conditional: 0, unknown unconditional: 379] , Statistics on independence cache: Total cache size (in pairs): 563, Positive cache size: 549, Positive conditional cache size: 0, Positive unconditional cache size: 549, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 424, Maximal queried relation: 1, Independence queries for same thread: 113, Persistent sets #1 benchmarks: Persistent set computation time: 0.4s, Number of persistent set computation: 94, Number of trivial persistent sets: 73, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 572, independent: 558, independent conditional: 0, independent unconditional: 558, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1095, independent: 952, independent conditional: 394, independent unconditional: 558, dependent: 143, dependent conditional: 129, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 982, independent: 952, independent conditional: 394, independent unconditional: 558, dependent: 30, dependent conditional: 16, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 982, independent: 952, independent conditional: 394, independent unconditional: 558, dependent: 30, dependent conditional: 16, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 996, independent: 952, independent conditional: 394, independent unconditional: 558, dependent: 44, dependent conditional: 30, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 996, independent: 952, independent conditional: 0, independent unconditional: 952, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 996, independent: 952, independent conditional: 0, independent unconditional: 952, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 379, independent: 370, independent conditional: 0, independent unconditional: 370, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 379, independent: 370, independent conditional: 0, independent unconditional: 370, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 9, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 9, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 365, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 365, dependent conditional: 0, dependent unconditional: 365, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 996, independent: 582, independent conditional: 0, independent unconditional: 582, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 379, unknown conditional: 0, unknown unconditional: 379] , Statistics on independence cache: Total cache size (in pairs): 563, Positive cache size: 549, Positive conditional cache size: 0, Positive unconditional cache size: 549, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 424, Maximal queried relation: 1, Independence queries for same thread: 113 - PositiveResult [Line: 175]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 53 locations, 66 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.4s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: whoop_wrapper_write_nvramThread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 53 locations, 66 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-24 19:10:16,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE