./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:57:55,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:57:55,175 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:57:55,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:57:55,185 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:57:55,226 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:57:55,227 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:57:55,228 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:57:55,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:57:55,234 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:57:55,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:57:55,236 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:57:55,237 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:57:55,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:57:55,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:57:55,240 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:57:55,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:57:55,241 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:57:55,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:57:55,242 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:57:55,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:57:55,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:57:55,243 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:57:55,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:57:55,244 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:57:55,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:57:55,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:57:55,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:57:55,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:57:55,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:57:55,249 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:57:55,249 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:57:55,249 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:57:55,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:57:55,250 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:57:55,250 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:57:55,250 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:57:55,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:57:55,251 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:57:55,251 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1941de74eb261e3f3ecbbb76e1746df74b536a1b8190d4ca9fd6a4341892fdcb [2023-11-06 22:57:55,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:57:55,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:57:55,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:57:55,615 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:57:55,616 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:57:55,618 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2023-11-06 22:57:58,754 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:57:59,495 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:57:59,496 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2023-11-06 22:57:59,570 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/bin/uautomizer-verify-WvqO1wxjHP/data/35defabd0/e79ba6afd9c641e5a6139718549015c5/FLAG9ed641989 [2023-11-06 22:57:59,594 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/bin/uautomizer-verify-WvqO1wxjHP/data/35defabd0/e79ba6afd9c641e5a6139718549015c5 [2023-11-06 22:57:59,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:57:59,605 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:57:59,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:57:59,609 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:57:59,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:57:59,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:57:59" (1/1) ... [2023-11-06 22:57:59,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b34ff98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:59, skipping insertion in model container [2023-11-06 22:57:59,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:57:59" (1/1) ... [2023-11-06 22:57:59,822 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:58:00,337 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2023-11-06 22:58:06,124 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-06 22:58:07,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:58:07,051 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:58:07,102 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2023-11-06 22:58:07,203 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] [2023-11-06 22:58:07,205 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] [2023-11-06 22:58:07,206 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] [2023-11-06 22:58:07,206 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] [2023-11-06 22:58:07,315 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-06 22:58:07,351 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-06 22:58:07,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:58:08,181 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:08,181 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:08,182 WARN L672 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:08,182 WARN L672 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:08,182 WARN L672 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:08,182 WARN L672 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:08,182 WARN L672 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:08,190 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:58:08,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:08 WrapperNode [2023-11-06 22:58:08,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:58:08,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:58:08,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:58:08,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:58:08,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:08" (1/1) ... [2023-11-06 22:58:08,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:08" (1/1) ... [2023-11-06 22:58:08,421 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 322 [2023-11-06 22:58:08,422 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:58:08,423 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:58:08,423 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:58:08,423 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:58:08,434 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:08" (1/1) ... [2023-11-06 22:58:08,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:08" (1/1) ... [2023-11-06 22:58:08,442 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:08" (1/1) ... [2023-11-06 22:58:08,442 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:08" (1/1) ... [2023-11-06 22:58:08,462 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:08" (1/1) ... [2023-11-06 22:58:08,467 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:08" (1/1) ... [2023-11-06 22:58:08,473 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:08" (1/1) ... [2023-11-06 22:58:08,478 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:08" (1/1) ... [2023-11-06 22:58:08,487 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:58:08,489 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:58:08,489 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:58:08,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:58:08,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:08" (1/1) ... [2023-11-06 22:58:08,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:58:08,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:08,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:58:08,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144c318f-fa1b-4ff7-963c-7756082bab04/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:58:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:58:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:58:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2023-11-06 22:58:08,598 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2023-11-06 22:58:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:58:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:58:08,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:58:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 22:58:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:58:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:58:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:58:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:58:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:58:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:58:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2023-11-06 22:58:08,601 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2023-11-06 22:58:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:58:08,603 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:58:09,187 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:58:09,190 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:58:09,838 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:58:09,903 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:58:09,904 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:58:09,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:09 BoogieIcfgContainer [2023-11-06 22:58:09,908 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:58:09,911 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:58:09,912 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:58:09,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:58:09,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:57:59" (1/3) ... [2023-11-06 22:58:09,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726ca85a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:09, skipping insertion in model container [2023-11-06 22:58:09,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:08" (2/3) ... [2023-11-06 22:58:09,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726ca85a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:09, skipping insertion in model container [2023-11-06 22:58:09,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:09" (3/3) ... [2023-11-06 22:58:09,923 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2023-11-06 22:58:09,935 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:58:09,948 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:58:09,949 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:58:09,949 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:58:10,151 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:58:10,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 361 places, 365 transitions, 744 flow [2023-11-06 22:58:10,406 INFO L124 PetriNetUnfolderBase]: 11/363 cut-off events. [2023-11-06 22:58:10,406 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:58:10,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 363 events. 11/363 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 344 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 299. Up to 4 conditions per place. [2023-11-06 22:58:10,417 INFO L82 GeneralOperation]: Start removeDead. Operand has 361 places, 365 transitions, 744 flow [2023-11-06 22:58:10,439 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 350 places, 354 transitions, 717 flow [2023-11-06 22:58:10,443 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:58:10,465 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 350 places, 354 transitions, 717 flow [2023-11-06 22:58:10,470 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 350 places, 354 transitions, 717 flow [2023-11-06 22:58:10,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 350 places, 354 transitions, 717 flow [2023-11-06 22:58:10,606 INFO L124 PetriNetUnfolderBase]: 11/354 cut-off events. [2023-11-06 22:58:10,606 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:58:10,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 354 events. 11/354 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 326 event pairs, 0 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 299. Up to 4 conditions per place. [2023-11-06 22:58:10,619 INFO L119 LiptonReduction]: Number of co-enabled transitions 12282 [2023-11-06 22:58:50,450 WARN L293 SmtUtils]: Spent 6.36s on a formula simplification that was a NOOP. DAG size: 335 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:58:55,605 WARN L293 SmtUtils]: Spent 5.15s on a formula simplification that was a NOOP. DAG size: 327 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:02:13,476 WARN L293 SmtUtils]: Spent 2.86m on a formula simplification. DAG size of input: 518 DAG size of output: 514 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)