./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f16b4cfe031f645c2fa5eeec572887c79d8e9243727503d849e4b19e0e31cc63 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:33:46,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:33:46,295 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:33:46,303 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:33:46,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:33:46,325 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:33:46,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:33:46,327 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:33:46,327 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:33:46,328 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:33:46,328 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:33:46,328 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:33:46,329 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:33:46,329 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:33:46,329 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:33:46,329 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:33:46,329 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:33:46,329 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:33:46,329 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:33:46,329 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:33:46,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:33:46,330 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:33:46,330 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:33:46,330 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:33:46,330 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:33:46,330 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:33:46,330 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:33:46,330 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:33:46,330 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:33:46,330 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:33:46,331 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:33:46,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:33:46,331 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:33:46,331 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:33:46,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:33:46,331 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:33:46,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:33:46,332 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:33:46,332 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:33:46,332 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:33:46,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:33:46,332 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:33:46,332 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:33:46,332 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:33:46,332 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:33:46,332 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> f16b4cfe031f645c2fa5eeec572887c79d8e9243727503d849e4b19e0e31cc63 [2025-03-17 19:33:46,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:33:46,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:33:46,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:33:46,546 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:33:46,546 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:33:46,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2025-03-17 19:33:47,665 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e6c453fd/0235f85e12c243519b990b431b722072/FLAG8f5a3b207 [2025-03-17 19:33:48,172 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:33:48,173 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2025-03-17 19:33:48,212 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e6c453fd/0235f85e12c243519b990b431b722072/FLAG8f5a3b207 [2025-03-17 19:33:48,228 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e6c453fd/0235f85e12c243519b990b431b722072 [2025-03-17 19:33:48,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:33:48,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:33:48,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:33:48,232 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:33:48,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:33:48,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:33:48" (1/1) ... [2025-03-17 19:33:48,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7a474f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:33:48, skipping insertion in model container [2025-03-17 19:33:48,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:33:48" (1/1) ... [2025-03-17 19:33:48,320 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:33:51,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:33:51,837 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:33:51,935 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] [2025-03-17 19:33:51,940 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] [2025-03-17 19:33:51,940 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] [2025-03-17 19:33:51,940 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] [2025-03-17 19:33:51,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2025-03-17 19:33:52,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:33:52,306 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:33:52,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:33:52 WrapperNode [2025-03-17 19:33:52,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:33:52,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:33:52,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:33:52,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:33:52,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:33:52" (1/1) ... [2025-03-17 19:33:52,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:33:52" (1/1) ... [2025-03-17 19:33:52,428 INFO L138 Inliner]: procedures = 1354, calls = 1480, calls flagged for inlining = 353, calls inlined = 20, statements flattened = 398 [2025-03-17 19:33:52,428 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:33:52,429 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:33:52,429 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:33:52,429 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:33:52,437 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:33:52" (1/1) ... [2025-03-17 19:33:52,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:33:52" (1/1) ... [2025-03-17 19:33:52,442 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:33:52" (1/1) ... [2025-03-17 19:33:52,456 INFO L175 MemorySlicer]: Split 52 memory accesses to 7 slices as follows [2, 1, 4, 2, 31, 3, 9]. 60 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 1, 4, 2, 31, 3, 0]. The 3 writes are split as follows [0, 0, 0, 0, 0, 0, 3]. [2025-03-17 19:33:52,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:33:52" (1/1) ... [2025-03-17 19:33:52,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:33:52" (1/1) ... [2025-03-17 19:33:52,488 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:33:52" (1/1) ... [2025-03-17 19:33:52,490 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:33:52" (1/1) ... [2025-03-17 19:33:52,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:33:52" (1/1) ... [2025-03-17 19:33:52,499 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:33:52" (1/1) ... [2025-03-17 19:33:52,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:33:52,508 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:33:52,509 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:33:52,509 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:33:52,512 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:33:52" (1/1) ... [2025-03-17 19:33:52,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:33:52,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:33:52,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 19:33:52,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 19:33:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 19:33:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 19:33:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 19:33:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 19:33:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 19:33:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 19:33:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-17 19:33:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 19:33:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:33:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:33:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:33:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 19:33:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 19:33:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 19:33:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 19:33:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 19:33:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 19:33:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-17 19:33:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2025-03-17 19:33:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2025-03-17 19:33:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-17 19:33:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-17 19:33:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 19:33:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 19:33:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 19:33:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 19:33:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 19:33:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 19:33:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-17 19:33:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2025-03-17 19:33:52,565 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2025-03-17 19:33:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:33:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 19:33:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 19:33:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 19:33:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 19:33:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 19:33:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-17 19:33:52,566 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 19:33:52,860 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:33:52,861 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:33:52,987 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6551: havoc access_ok_#t~nondet1065#1; [2025-03-17 19:33:52,987 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6543: havoc __put_user_#t~nondet1063#1; [2025-03-17 19:33:52,987 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6636: havoc nvram_read_byte_#t~nondet1081#1; [2025-03-17 19:33:53,070 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6551: havoc access_ok_#t~nondet1065#1; [2025-03-17 19:33:53,071 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6535: havoc __get_user_#t~nondet1061#1; [2025-03-17 19:33:53,240 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6632: havoc nvram_get_size_#t~nondet1080#1; [2025-03-17 19:33:53,241 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6650: havoc printk_#t~nondet1083#1; [2025-03-17 19:33:53,241 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6624: havoc misc_register_#t~nondet1078#1; [2025-03-17 19:33:53,242 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:33:53,242 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:33:53,655 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:33:53,656 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:33:53,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:33:53 BoogieIcfgContainer [2025-03-17 19:33:53,656 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:33:53,659 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:33:53,659 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:33:53,662 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:33:53,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:33:48" (1/3) ... [2025-03-17 19:33:53,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3568283f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:33:53, skipping insertion in model container [2025-03-17 19:33:53,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:33:52" (2/3) ... [2025-03-17 19:33:53,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3568283f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:33:53, skipping insertion in model container [2025-03-17 19:33:53,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:33:53" (3/3) ... [2025-03-17 19:33:53,664 INFO L128 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2025-03-17 19:33:53,676 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:33:53,679 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG char_generic_nvram_read_nvram_write_nvram.i that has 3 procedures, 35 locations, 1 initial locations, 2 loop locations, and 0 error locations. [2025-03-17 19:33:53,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3568283f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:33:53, skipping insertion in model container [2025-03-17 19:33:53,679 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 19:33:53,680 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:33:53,680 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:33:53,680 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:33:53,681 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:33:53" (3/3) ... [2025-03-17 19:33:53,682 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 19:33:53,684 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_read_nvram [2025-03-17 19:33:53,685 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_write_nvram [2025-03-17 19:33:53,689 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 192 nodes and edges [2025-03-17 19:33:53,689 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2025-03-17 19:33:53,690 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2025-03-17 19:33:53,690 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-17 19:33:53,690 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 19:33:53,691 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 19:33:53,762 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 19:33:53,763 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 19:33:53,763 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:33:53,764 INFO L158 Benchmark]: Toolchain (without parser) took 5533.06ms. Allocated memory was 167.8MB in the beginning and 453.0MB in the end (delta: 285.2MB). Free memory was 113.5MB in the beginning and 181.9MB in the end (delta: -68.5MB). Peak memory consumption was 217.0MB. Max. memory is 16.1GB. [2025-03-17 19:33:53,764 INFO L158 Benchmark]: CDTParser took 0.99ms. Allocated memory is still 201.3MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:33:53,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4075.67ms. Allocated memory is still 167.8MB. Free memory was 113.5MB in the beginning and 58.5MB in the end (delta: 55.0MB). Peak memory consumption was 122.3MB. Max. memory is 16.1GB. [2025-03-17 19:33:53,765 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.84ms. Allocated memory is still 167.8MB. Free memory was 58.5MB in the beginning and 49.0MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:33:53,766 INFO L158 Benchmark]: Boogie Preprocessor took 79.05ms. Allocated memory was 167.8MB in the beginning and 453.0MB in the end (delta: 285.2MB). Free memory was 49.0MB in the beginning and 384.4MB in the end (delta: -335.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2025-03-17 19:33:53,766 INFO L158 Benchmark]: IcfgBuilder took 1147.77ms. Allocated memory is still 453.0MB. Free memory was 384.4MB in the beginning and 191.4MB in the end (delta: 193.0MB). Peak memory consumption was 192.9MB. Max. memory is 16.1GB. [2025-03-17 19:33:53,766 INFO L158 Benchmark]: TraceAbstraction took 20.81ms. Allocated memory is still 453.0MB. Free memory was 190.3MB in the beginning and 189.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:33:53,767 INFO L158 Benchmark]: Witness Printer took 82.94ms. Allocated memory is still 453.0MB. Free memory was 189.2MB in the beginning and 181.9MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:33:53,768 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99ms. Allocated memory is still 201.3MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4075.67ms. Allocated memory is still 167.8MB. Free memory was 113.5MB in the beginning and 58.5MB in the end (delta: 55.0MB). Peak memory consumption was 122.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 120.84ms. Allocated memory is still 167.8MB. Free memory was 58.5MB in the beginning and 49.0MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.05ms. Allocated memory was 167.8MB in the beginning and 453.0MB in the end (delta: 285.2MB). Free memory was 49.0MB in the beginning and 384.4MB in the end (delta: -335.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * IcfgBuilder took 1147.77ms. Allocated memory is still 453.0MB. Free memory was 384.4MB in the beginning and 191.4MB in the end (delta: 193.0MB). Peak memory consumption was 192.9MB. Max. memory is 16.1GB. * TraceAbstraction took 20.81ms. Allocated memory is still 453.0MB. Free memory was 190.3MB in the beginning and 189.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 82.94ms. Allocated memory is still 453.0MB. Free memory was 189.2MB in the beginning and 181.9MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2025-03-17 19:33:53,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE