/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 19:38:29,436 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 19:38:29,491 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-13 19:38:29,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 19:38:29,495 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 19:38:29,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 19:38:29,514 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 19:38:29,514 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 19:38:29,515 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 19:38:29,515 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 19:38:29,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 19:38:29,515 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 19:38:29,515 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 19:38:29,515 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 19:38:29,515 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 19:38:29,516 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 19:38:29,516 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 19:38:29,516 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 19:38:29,516 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 19:38:29,516 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 19:38:29,516 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 19:38:29,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 19:38:29,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 19:38:29,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 19:38:29,516 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 19:38:29,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 19:38:29,516 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 19:38:29,516 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 19:38:29,516 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 19:38:29,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:38:29,516 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:38:29,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:38:29,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:38:29,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 19:38:29,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:38:29,517 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:38:29,517 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:38:29,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:38:29,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 19:38:29,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 19:38:29,517 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 19:38:29,517 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 19:38:29,517 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 19:38:29,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 19:38:29,517 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 19:38:29,517 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 19:38:29,517 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 19:38:29,517 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Automaton type used in concurrency analysis -> PETRI_NET [2025-04-13 19:38:29,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 19:38:29,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 19:38:29,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 19:38:29,756 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 19:38:29,757 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 19:38:29,757 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2025-04-13 19:38:31,080 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1e9d5cf0/1cb085c4c2aa436ea3670e4520d0004c/FLAGaed9d11d1 [2025-04-13 19:38:31,526 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 19:38:31,526 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2025-04-13 19:38:31,574 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1e9d5cf0/1cb085c4c2aa436ea3670e4520d0004c/FLAGaed9d11d1 [2025-04-13 19:38:32,082 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1e9d5cf0/1cb085c4c2aa436ea3670e4520d0004c [2025-04-13 19:38:32,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 19:38:32,085 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 19:38:32,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 19:38:32,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 19:38:32,090 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 19:38:32,091 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:38:32" (1/1) ... [2025-04-13 19:38:32,091 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22db6414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:32, skipping insertion in model container [2025-04-13 19:38:32,092 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:38:32" (1/1) ... [2025-04-13 19:38:32,157 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 19:38:32,515 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i[5520,5533] [2025-04-13 19:38:35,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:38:35,904 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 19:38:35,929 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i[5520,5533] [2025-04-13 19:38:36,016 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] [2025-04-13 19:38:36,018 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] [2025-04-13 19:38:36,018 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] [2025-04-13 19:38:36,018 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] [2025-04-13 19:38:36,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2025-04-13 19:38:36,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:38:36,451 INFO L204 MainTranslator]: Completed translation [2025-04-13 19:38:36,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:36 WrapperNode [2025-04-13 19:38:36,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 19:38:36,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 19:38:36,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 19:38:36,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 19:38:36,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:36" (1/1) ... [2025-04-13 19:38:36,519 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:36" (1/1) ... [2025-04-13 19:38:36,578 INFO L138 Inliner]: procedures = 1352, calls = 1453, calls flagged for inlining = 352, calls inlined = 19, statements flattened = 341 [2025-04-13 19:38:36,578 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 19:38:36,579 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 19:38:36,579 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 19:38:36,579 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 19:38:36,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:36" (1/1) ... [2025-04-13 19:38:36,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:36" (1/1) ... [2025-04-13 19:38:36,591 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:36" (1/1) ... [2025-04-13 19:38:36,611 INFO L175 MemorySlicer]: Split 51 memory accesses to 7 slices as follows [2, 1, 5, 4, 31, 3, 5]. 61 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 1, 2, 4, 31, 3, 0]. The 4 writes are split as follows [0, 0, 2, 0, 0, 0, 2]. [2025-04-13 19:38:36,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:36" (1/1) ... [2025-04-13 19:38:36,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:36" (1/1) ... [2025-04-13 19:38:36,625 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:36" (1/1) ... [2025-04-13 19:38:36,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:36" (1/1) ... [2025-04-13 19:38:36,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:36" (1/1) ... [2025-04-13 19:38:36,634 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:36" (1/1) ... [2025-04-13 19:38:36,635 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:36" (1/1) ... [2025-04-13 19:38:36,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 19:38:36,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 19:38:36,645 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 19:38:36,645 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 19:38:36,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:36" (1/1) ... [2025-04-13 19:38:36,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:38:36,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 19:38:36,674 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) [2025-04-13 19:38:36,679 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 [2025-04-13 19:38:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-13 19:38:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-13 19:38:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-13 19:38:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-04-13 19:38:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-04-13 19:38:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-04-13 19:38:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-04-13 19:38:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-13 19:38:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2025-04-13 19:38:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2025-04-13 19:38:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 19:38:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 19:38:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 19:38:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-13 19:38:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-13 19:38:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-13 19:38:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-04-13 19:38:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-04-13 19:38:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-04-13 19:38:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-04-13 19:38:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2025-04-13 19:38:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2025-04-13 19:38:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-13 19:38:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-13 19:38:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-04-13 19:38:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-04-13 19:38:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-04-13 19:38:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-04-13 19:38:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-04-13 19:38:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-04-13 19:38:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-04-13 19:38:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 19:38:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 19:38:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-13 19:38:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-04-13 19:38:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-04-13 19:38:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-04-13 19:38:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-04-13 19:38:36,698 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 19:38:37,003 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 19:38:37,004 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 19:38:37,399 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 19:38:37,400 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 19:38:37,400 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 19:38:38,489 INFO L313 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 19:38:38,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:38:38 BoogieIcfgContainer [2025-04-13 19:38:38,489 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 19:38:38,491 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 19:38:38,491 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 19:38:38,494 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 19:38:38,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 07:38:32" (1/3) ... [2025-04-13 19:38:38,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae886fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:38:38, skipping insertion in model container [2025-04-13 19:38:38,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:36" (2/3) ... [2025-04-13 19:38:38,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae886fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:38:38, skipping insertion in model container [2025-04-13 19:38:38,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:38:38" (3/3) ... [2025-04-13 19:38:38,495 INFO L128 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2025-04-13 19:38:38,509 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 19:38:38,511 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i that has 3 procedures, 19 locations, 18 edges, 1 initial locations, 1 loop locations, and 1 error locations. [2025-04-13 19:38:38,512 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 19:38:38,618 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-13 19:38:38,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 20 transitions, 54 flow [2025-04-13 19:38:38,673 INFO L116 PetriNetUnfolderBase]: 2/18 cut-off events. [2025-04-13 19:38:38,677 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-13 19:38:38,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 18 events. 2/18 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2025-04-13 19:38:38,679 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 20 transitions, 54 flow [2025-04-13 19:38:38,682 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 19 places, 13 transitions, 32 flow [2025-04-13 19:38:38,688 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 19:38:38,700 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=PETRI_NET, 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;@74406930, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 19:38:38,701 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-13 19:38:38,713 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-13 19:38:38,713 INFO L116 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-04-13 19:38:38,714 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:38:38,714 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:38:38,714 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-04-13 19:38:38,714 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:38:38,718 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:38:38,718 INFO L85 PathProgramCache]: Analyzing trace with hash 27073682, now seen corresponding path program 1 times [2025-04-13 19:38:38,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:38:38,724 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767065792] [2025-04-13 19:38:38,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:38:38,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:38:38,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-13 19:38:38,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-13 19:38:38,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:38:38,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:38:39,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:38:39,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:38:39,267 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767065792] [2025-04-13 19:38:39,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767065792] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:38:39,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:38:39,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-13 19:38:39,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61491446] [2025-04-13 19:38:39,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:38:39,274 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-13 19:38:39,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:38:39,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-13 19:38:39,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-13 19:38:39,296 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 20 [2025-04-13 19:38:39,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 32 flow. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-04-13 19:38:39,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:38:39,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 20 [2025-04-13 19:38:39,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:38:39,370 INFO L116 PetriNetUnfolderBase]: 37/66 cut-off events. [2025-04-13 19:38:39,370 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-13 19:38:39,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 66 events. 37/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 23 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 132. Up to 67 conditions per place. [2025-04-13 19:38:39,373 INFO L140 encePairwiseOnDemand]: 19/20 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2025-04-13 19:38:39,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 12 transitions, 54 flow [2025-04-13 19:38:39,374 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-13 19:38:39,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-04-13 19:38:39,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 17 transitions. [2025-04-13 19:38:39,383 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.425 [2025-04-13 19:38:39,384 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 32 flow. Second operand 2 states and 17 transitions. [2025-04-13 19:38:39,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 12 transitions, 54 flow [2025-04-13 19:38:39,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 12 transitions, 52 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-13 19:38:39,388 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2025-04-13 19:38:39,389 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2025-04-13 19:38:39,394 INFO L279 CegarLoopForPetriNet]: 19 programPoint places, -2 predicate places. [2025-04-13 19:38:39,394 INFO L485 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2025-04-13 19:38:39,394 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-04-13 19:38:39,396 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-04-13 19:38:39,396 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-04-13 19:38:39,396 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-04-13 19:38:39,396 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2025-04-13 19:38:39,396 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 19:38:39,396 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-04-13 19:38:39,403 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 19:38:39,403 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 19:38:39,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 07:38:39 BasicIcfg [2025-04-13 19:38:39,406 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 19:38:39,408 INFO L158 Benchmark]: Toolchain (without parser) took 7321.56ms. Allocated memory was 155.2MB in the beginning and 318.8MB in the end (delta: 163.6MB). Free memory was 96.3MB in the beginning and 100.8MB in the end (delta: -4.5MB). Peak memory consumption was 160.7MB. Max. memory is 8.0GB. [2025-04-13 19:38:39,408 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:38:39,409 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4366.81ms. Allocated memory was 155.2MB in the beginning and 159.4MB in the end (delta: 4.2MB). Free memory was 96.3MB in the beginning and 38.3MB in the end (delta: 58.0MB). Peak memory consumption was 111.5MB. Max. memory is 8.0GB. [2025-04-13 19:38:39,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.78ms. Allocated memory was 159.4MB in the beginning and 318.8MB in the end (delta: 159.4MB). Free memory was 38.3MB in the beginning and 247.5MB in the end (delta: -209.2MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. [2025-04-13 19:38:39,410 INFO L158 Benchmark]: Boogie Preprocessor took 65.19ms. Allocated memory is still 318.8MB. Free memory was 247.5MB in the beginning and 242.1MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 19:38:39,410 INFO L158 Benchmark]: RCFGBuilder took 1844.89ms. Allocated memory is still 318.8MB. Free memory was 242.1MB in the beginning and 68.7MB in the end (delta: 173.4MB). Peak memory consumption was 197.7MB. Max. memory is 8.0GB. [2025-04-13 19:38:39,411 INFO L158 Benchmark]: TraceAbstraction took 915.54ms. Allocated memory is still 318.8MB. Free memory was 68.7MB in the beginning and 100.8MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:38:39,411 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4366.81ms. Allocated memory was 155.2MB in the beginning and 159.4MB in the end (delta: 4.2MB). Free memory was 96.3MB in the beginning and 38.3MB in the end (delta: 58.0MB). Peak memory consumption was 111.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 124.78ms. Allocated memory was 159.4MB in the beginning and 318.8MB in the end (delta: 159.4MB). Free memory was 38.3MB in the beginning and 247.5MB in the end (delta: -209.2MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 65.19ms. Allocated memory is still 318.8MB. Free memory was 247.5MB in the beginning and 242.1MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1844.89ms. Allocated memory is still 318.8MB. Free memory was 242.1MB in the beginning and 68.7MB in the end (delta: 173.4MB). Peak memory consumption was 197.7MB. Max. memory is 8.0GB. * TraceAbstraction took 915.54ms. Allocated memory is still 318.8MB. Free memory was 68.7MB in the beginning and 100.8MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 8.0GB. * 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: - 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 with 1 thread instances CFG has 5 procedures, 31 locations, 34 edges, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 3 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: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-13 19:38:39,429 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...