./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i --full-output --preprocessor.use.memory.slicer true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1941de74eb261e3f3ecbbb76e1746df74b536a1b8190d4ca9fd6a4341892fdcb --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 22:45:19,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 22:45:20,002 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-22 22:45:20,008 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 22:45:20,008 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 22:45:20,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 22:45:20,033 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 22:45:20,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 22:45:20,034 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 22:45:20,037 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 22:45:20,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 22:45:20,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 22:45:20,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 22:45:20,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 22:45:20,039 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 22:45:20,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 22:45:20,039 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 22:45:20,039 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 22:45:20,039 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 22:45:20,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 22:45:20,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 22:45:20,048 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 22:45:20,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 22:45:20,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 22:45:20,048 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 22:45:20,048 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 22:45:20,049 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 22:45:20,049 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 22:45:20,049 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 22:45:20,049 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 22:45:20,050 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 22:45:20,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 22:45:20,051 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 22:45:20,051 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 22:45:20,051 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 22:45:20,051 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 22:45:20,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 22:45:20,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 22:45:20,051 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 22:45:20,052 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 22:45:20,052 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 22:45:20,052 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 22:45:20,052 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1941de74eb261e3f3ecbbb76e1746df74b536a1b8190d4ca9fd6a4341892fdcb Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-22 22:45:20,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 22:45:20,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 22:45:20,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 22:45:20,301 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 22:45:20,302 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 22:45:20,302 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2023-11-22 22:45:21,301 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 22:45:21,647 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 22:45:21,648 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2023-11-22 22:45:21,686 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3383880/257a2408ab07424f8c3a58aa618136bd/FLAG9bad3d544 [2023-11-22 22:45:21,725 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3383880/257a2408ab07424f8c3a58aa618136bd [2023-11-22 22:45:21,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 22:45:21,729 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 22:45:21,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 22:45:21,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 22:45:21,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 22:45:21,762 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:45:21" (1/1) ... [2023-11-22 22:45:21,763 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58cae2cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:45:21, skipping insertion in model container [2023-11-22 22:45:21,763 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:45:21" (1/1) ... [2023-11-22 22:45:21,834 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 22:45:22,095 WARN L240 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_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2023-11-22 22:45:24,138 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-22 22:45:24,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 22:45:24,580 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 22:45:24,602 WARN L240 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_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2023-11-22 22:45:24,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2023-11-22 22:45:24,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2023-11-22 22:45:24,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2023-11-22 22:45:24,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2023-11-22 22:45:24,756 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-22 22:45:24,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-22 22:45:24,809 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 22:45:25,166 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 22:45:25,166 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 22:45:25,166 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 22:45:25,166 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 22:45:25,166 WARN L675 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 22:45:25,167 WARN L675 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 22:45:25,167 WARN L675 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 22:45:25,172 INFO L206 MainTranslator]: Completed translation [2023-11-22 22:45:25,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:45:25 WrapperNode [2023-11-22 22:45:25,173 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 22:45:25,174 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 22:45:25,174 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 22:45:25,175 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 22:45:25,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:45:25" (1/1) ... [2023-11-22 22:45:25,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:45:25" (1/1) ... [2023-11-22 22:45:25,322 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 322 [2023-11-22 22:45:25,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 22:45:25,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 22:45:25,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 22:45:25,324 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 22:45:25,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:45:25" (1/1) ... [2023-11-22 22:45:25,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:45:25" (1/1) ... [2023-11-22 22:45:25,347 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:45:25" (1/1) ... [2023-11-22 22:45:25,378 INFO L189 HeapSplitter]: Split 34 memory accesses to 9 slices as follows [2, 2, 1, 4, 4, 2, 11, 5, 3] [2023-11-22 22:45:25,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:45:25" (1/1) ... [2023-11-22 22:45:25,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:45:25" (1/1) ... [2023-11-22 22:45:25,392 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:45:25" (1/1) ... [2023-11-22 22:45:25,406 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:45:25" (1/1) ... [2023-11-22 22:45:25,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:45:25" (1/1) ... [2023-11-22 22:45:25,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:45:25" (1/1) ... [2023-11-22 22:45:25,438 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 22:45:25,439 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 22:45:25,439 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 22:45:25,439 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 22:45:25,440 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:45:25" (1/1) ... [2023-11-22 22:45:25,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 22:45:25,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 22:45:25,486 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 22:45:25,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 22:45:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-22 22:45:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-22 22:45:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-22 22:45:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-22 22:45:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-22 22:45:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-22 22:45:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-22 22:45:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-22 22:45:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-22 22:45:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 22:45:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2023-11-22 22:45:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2023-11-22 22:45:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 22:45:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 22:45:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 22:45:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-22 22:45:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-22 22:45:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-22 22:45:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-22 22:45:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-22 22:45:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-22 22:45:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-22 22:45:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-22 22:45:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-22 22:45:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 22:45:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-22 22:45:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-22 22:45:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-22 22:45:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-22 22:45:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-22 22:45:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-22 22:45:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-22 22:45:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-22 22:45:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-22 22:45:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-22 22:45:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 22:45:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-22 22:45:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-22 22:45:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-22 22:45:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-22 22:45:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-22 22:45:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-22 22:45:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-22 22:45:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-22 22:45:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-22 22:45:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-22 22:45:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2023-11-22 22:45:25,539 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2023-11-22 22:45:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-22 22:45:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-22 22:45:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-22 22:45:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-22 22:45:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-22 22:45:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-22 22:45:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-22 22:45:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-22 22:45:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-22 22:45:25,542 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-22 22:45:25,857 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 22:45:25,858 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 22:45:26,131 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 22:45:26,431 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 22:45:26,431 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-22 22:45:26,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:45:26 BoogieIcfgContainer [2023-11-22 22:45:26,432 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 22:45:26,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 22:45:26,433 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 22:45:26,435 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 22:45:26,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:45:21" (1/3) ... [2023-11-22 22:45:26,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7442d6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:45:26, skipping insertion in model container [2023-11-22 22:45:26,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:45:25" (2/3) ... [2023-11-22 22:45:26,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7442d6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:45:26, skipping insertion in model container [2023-11-22 22:45:26,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:45:26" (3/3) ... [2023-11-22 22:45:26,437 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2023-11-22 22:45:26,444 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-22 22:45:26,451 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 22:45:26,451 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 22:45:26,451 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-22 22:45:26,493 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-22 22:45:26,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 37 transitions, 88 flow [2023-11-22 22:45:26,535 INFO L124 PetriNetUnfolderBase]: 7/35 cut-off events. [2023-11-22 22:45:26,535 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-22 22:45:26,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 35 events. 7/35 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 31. Up to 4 conditions per place. [2023-11-22 22:45:26,540 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 37 transitions, 88 flow [2023-11-22 22:45:26,542 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 33 transitions, 75 flow [2023-11-22 22:45:26,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 22:45:26,553 INFO L357 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, mHoare=true, 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;@5d3dba17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 22:45:26,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-22 22:45:26,563 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-22 22:45:26,563 INFO L124 PetriNetUnfolderBase]: 7/26 cut-off events. [2023-11-22 22:45:26,563 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-22 22:45:26,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-22 22:45:26,564 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 22:45:26,565 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-22 22:45:26,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 22:45:26,568 INFO L85 PathProgramCache]: Analyzing trace with hash -476109882, now seen corresponding path program 1 times [2023-11-22 22:45:26,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 22:45:26,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432984770] [2023-11-22 22:45:26,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 22:45:26,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 22:45:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 22:45:27,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 22:45:27,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 22:45:27,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432984770] [2023-11-22 22:45:27,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432984770] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 22:45:27,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 22:45:27,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 22:45:27,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070816363] [2023-11-22 22:45:27,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 22:45:27,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 22:45:27,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 22:45:27,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 22:45:27,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 22:45:27,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 37 [2023-11-22 22:45:27,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 33 transitions, 75 flow. Second operand 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) [2023-11-22 22:45:27,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-22 22:45:27,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 37 [2023-11-22 22:45:27,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-22 22:45:27,378 INFO L124 PetriNetUnfolderBase]: 389/608 cut-off events. [2023-11-22 22:45:27,378 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-11-22 22:45:27,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1236 conditions, 608 events. 389/608 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2018 event pairs, 207 based on Foata normal form. 0/500 useless extension candidates. Maximal degree in co-relation 1136. Up to 487 conditions per place. [2023-11-22 22:45:27,382 INFO L140 encePairwiseOnDemand]: 34/37 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2023-11-22 22:45:27,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 43 transitions, 182 flow [2023-11-22 22:45:27,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 22:45:27,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-22 22:45:27,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2023-11-22 22:45:27,391 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4954954954954955 [2023-11-22 22:45:27,391 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 55 transitions. [2023-11-22 22:45:27,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 55 transitions. [2023-11-22 22:45:27,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-22 22:45:27,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 55 transitions. [2023-11-22 22:45:27,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2023-11-22 22:45:27,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2023-11-22 22:45:27,398 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2023-11-22 22:45:27,400 INFO L175 Difference]: Start difference. First operand has 33 places, 33 transitions, 75 flow. Second operand 3 states and 55 transitions. [2023-11-22 22:45:27,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 43 transitions, 182 flow [2023-11-22 22:45:27,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-22 22:45:27,403 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2023-11-22 22:45:27,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2023-11-22 22:45:27,407 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -3 predicate places. [2023-11-22 22:45:27,407 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2023-11-22 22:45:27,407 INFO L496 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) [2023-11-22 22:45:27,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-22 22:45:27,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-22 22:45:27,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-22 22:45:27,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-11-22 22:45:27,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 22:45:27,410 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-22 22:45:27,415 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-22 22:45:27,415 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-22 22:45:27,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 10:45:27 BasicIcfg [2023-11-22 22:45:27,419 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-22 22:45:27,419 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-22 22:45:27,420 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-22 22:45:27,420 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-22 22:45:27,420 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:45:26" (3/4) ... [2023-11-22 22:45:27,421 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-22 22:45:27,423 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_write_nvram [2023-11-22 22:45:27,424 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_nvram_unlocked_ioctl [2023-11-22 22:45:27,428 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 156 nodes and edges [2023-11-22 22:45:27,428 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 67 nodes and edges [2023-11-22 22:45:27,429 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-22 22:45:27,429 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-22 22:45:27,429 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-22 22:45:27,430 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-22 22:45:27,498 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-11-22 22:45:27,499 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2023-11-22 22:45:27,499 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-22 22:45:27,499 INFO L158 Benchmark]: Toolchain (without parser) took 5770.09ms. Allocated memory was 169.9MB in the beginning and 339.7MB in the end (delta: 169.9MB). Free memory was 137.0MB in the beginning and 120.5MB in the end (delta: 16.5MB). Peak memory consumption was 185.2MB. Max. memory is 16.1GB. [2023-11-22 22:45:27,499 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 169.9MB. Free memory was 143.6MB in the beginning and 143.5MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 22:45:27,500 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3441.36ms. Allocated memory was 169.9MB in the beginning and 253.8MB in the end (delta: 83.9MB). Free memory was 136.4MB in the beginning and 99.0MB in the end (delta: 37.4MB). Peak memory consumption was 138.6MB. Max. memory is 16.1GB. [2023-11-22 22:45:27,500 INFO L158 Benchmark]: Boogie Procedure Inliner took 149.23ms. Allocated memory is still 253.8MB. Free memory was 99.0MB in the beginning and 89.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-22 22:45:27,500 INFO L158 Benchmark]: Boogie Preprocessor took 114.14ms. Allocated memory is still 253.8MB. Free memory was 89.6MB in the beginning and 184.2MB in the end (delta: -94.6MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2023-11-22 22:45:27,500 INFO L158 Benchmark]: RCFGBuilder took 992.99ms. Allocated memory is still 253.8MB. Free memory was 184.2MB in the beginning and 121.5MB in the end (delta: 62.7MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. [2023-11-22 22:45:27,501 INFO L158 Benchmark]: TraceAbstraction took 985.95ms. Allocated memory was 253.8MB in the beginning and 339.7MB in the end (delta: 86.0MB). Free memory was 121.5MB in the beginning and 126.8MB in the end (delta: -5.3MB). Peak memory consumption was 82.8MB. Max. memory is 16.1GB. [2023-11-22 22:45:27,501 INFO L158 Benchmark]: Witness Printer took 79.30ms. Allocated memory is still 339.7MB. Free memory was 126.8MB in the beginning and 120.5MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-22 22:45:27,502 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 169.9MB. Free memory was 143.6MB in the beginning and 143.5MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3441.36ms. Allocated memory was 169.9MB in the beginning and 253.8MB in the end (delta: 83.9MB). Free memory was 136.4MB in the beginning and 99.0MB in the end (delta: 37.4MB). Peak memory consumption was 138.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 149.23ms. Allocated memory is still 253.8MB. Free memory was 99.0MB in the beginning and 89.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.14ms. Allocated memory is still 253.8MB. Free memory was 89.6MB in the beginning and 184.2MB in the end (delta: -94.6MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * RCFGBuilder took 992.99ms. Allocated memory is still 253.8MB. Free memory was 184.2MB in the beginning and 121.5MB in the end (delta: 62.7MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. * TraceAbstraction took 985.95ms. Allocated memory was 253.8MB in the beginning and 339.7MB in the end (delta: 86.0MB). Free memory was 121.5MB in the beginning and 126.8MB in the end (delta: -5.3MB). Peak memory consumption was 82.8MB. Max. memory is 16.1GB. * Witness Printer took 79.30ms. Allocated memory is still 339.7MB. Free memory was 126.8MB in the beginning and 120.5MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 5814]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 174]: 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, 54 locations, 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: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 0.3s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-22 22:45:27,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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