./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a287bb-f410-4f4a-998c-4bc278c1b6d6/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a287bb-f410-4f4a-998c-4bc278c1b6d6/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a287bb-f410-4f4a-998c-4bc278c1b6d6/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a287bb-f410-4f4a-998c-4bc278c1b6d6/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a287bb-f410-4f4a-998c-4bc278c1b6d6/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a287bb-f410-4f4a-998c-4bc278c1b6d6/bin/uautomizer-verify-uTZkv6EMXl --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 4a382c3d3f68b2f5ab68f4f645755e252baf0f41b5f6fcd4ac49047e77a0e936 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:08:56,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:08:57,006 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a287bb-f410-4f4a-998c-4bc278c1b6d6/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:08:57,022 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:08:57,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:08:57,061 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:08:57,062 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:08:57,063 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:08:57,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:08:57,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:08:57,072 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:08:57,072 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:08:57,073 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:08:57,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:08:57,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:08:57,076 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:08:57,076 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:08:57,077 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:08:57,077 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:08:57,078 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:08:57,078 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:08:57,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:08:57,080 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:08:57,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:08:57,081 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:08:57,082 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:08:57,082 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:08:57,083 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:08:57,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:57,084 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:08:57,085 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:08:57,085 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:08:57,086 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:08:57,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:08:57,086 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:08:57,087 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:08:57,087 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:08:57,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:08:57,088 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:08:57,088 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_09a287bb-f410-4f4a-998c-4bc278c1b6d6/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a287bb-f410-4f4a-998c-4bc278c1b6d6/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a382c3d3f68b2f5ab68f4f645755e252baf0f41b5f6fcd4ac49047e77a0e936 [2023-11-12 02:08:57,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:08:57,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:08:57,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:08:57,443 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:08:57,443 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:08:57,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a287bb-f410-4f4a-998c-4bc278c1b6d6/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2023-11-12 02:09:00,597 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:09:01,160 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:09:01,161 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a287bb-f410-4f4a-998c-4bc278c1b6d6/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2023-11-12 02:09:01,210 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a287bb-f410-4f4a-998c-4bc278c1b6d6/bin/uautomizer-verify-uTZkv6EMXl/data/bf1d9f4ad/35ba832a4a654a5ba200dd6e7fa5644c/FLAG34ffa1350 [2023-11-12 02:09:01,227 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a287bb-f410-4f4a-998c-4bc278c1b6d6/bin/uautomizer-verify-uTZkv6EMXl/data/bf1d9f4ad/35ba832a4a654a5ba200dd6e7fa5644c [2023-11-12 02:09:01,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:09:01,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:09:01,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:01,239 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:09:01,245 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:09:01,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:01" (1/1) ... [2023-11-12 02:09:01,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b41ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:01, skipping insertion in model container [2023-11-12 02:09:01,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:01" (1/1) ... [2023-11-12 02:09:01,392 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:09:01,807 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_09a287bb-f410-4f4a-998c-4bc278c1b6d6/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2023-11-12 02:09:06,704 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-12 02:09:07,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:07,695 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:09:07,722 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_09a287bb-f410-4f4a-998c-4bc278c1b6d6/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2023-11-12 02:09:07,837 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] [2023-11-12 02:09:07,839 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] [2023-11-12 02:09:07,839 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] [2023-11-12 02:09:07,840 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] [2023-11-12 02:09:07,943 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-12 02:09:07,976 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-12 02:09:08,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:08,732 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:08,733 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:08,733 WARN L672 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:08,733 WARN L672 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:08,733 WARN L672 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:08,733 WARN L672 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:08,734 WARN L672 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:08,742 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:09:08,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:08 WrapperNode [2023-11-12 02:09:08,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:08,744 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:08,744 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:09:08,744 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:09:08,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:08" (1/1) ... [2023-11-12 02:09:08,870 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:08" (1/1) ... [2023-11-12 02:09:08,953 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 18, statements flattened = 357 [2023-11-12 02:09:08,955 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:08,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:09:08,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:09:08,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:09:08,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:08" (1/1) ... [2023-11-12 02:09:08,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:08" (1/1) ... [2023-11-12 02:09:08,973 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:08" (1/1) ... [2023-11-12 02:09:08,974 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:08" (1/1) ... [2023-11-12 02:09:08,995 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:08" (1/1) ... [2023-11-12 02:09:08,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:08" (1/1) ... [2023-11-12 02:09:09,016 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:08" (1/1) ... [2023-11-12 02:09:09,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:08" (1/1) ... [2023-11-12 02:09:09,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:09:09,039 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:09:09,039 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:09:09,039 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:09:09,040 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:08" (1/1) ... [2023-11-12 02:09:09,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:09:09,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a287bb-f410-4f4a-998c-4bc278c1b6d6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:09,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a287bb-f410-4f4a-998c-4bc278c1b6d6/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:09:09,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a287bb-f410-4f4a-998c-4bc278c1b6d6/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:09:09,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:09:09,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:09:09,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:09:09,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:09:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:09:09,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:09:09,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:09:09,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:09:09,129 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2023-11-12 02:09:09,130 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2023-11-12 02:09:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:09:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:09:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2023-11-12 02:09:09,132 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2023-11-12 02:09:09,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:09:09,133 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:09:09,610 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:09:09,612 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:09:10,126 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:09:10,138 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:09:10,139 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:09:10,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:10 BoogieIcfgContainer [2023-11-12 02:09:10,142 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:09:10,145 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:09:10,145 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:09:10,149 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:09:10,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:09:01" (1/3) ... [2023-11-12 02:09:10,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b05019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:09:10, skipping insertion in model container [2023-11-12 02:09:10,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:08" (2/3) ... [2023-11-12 02:09:10,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b05019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:09:10, skipping insertion in model container [2023-11-12 02:09:10,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:10" (3/3) ... [2023-11-12 02:09:10,153 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2023-11-12 02:09:10,162 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:09:10,174 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:09:10,174 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-12 02:09:10,175 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:09:10,358 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-12 02:09:10,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 408 places, 416 transitions, 846 flow [2023-11-12 02:09:10,622 INFO L124 PetriNetUnfolderBase]: 15/414 cut-off events. [2023-11-12 02:09:10,623 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:09:10,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 414 events. 15/414 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 555 event pairs, 0 based on Foata normal form. 0/397 useless extension candidates. Maximal degree in co-relation 299. Up to 4 conditions per place. [2023-11-12 02:09:10,636 INFO L82 GeneralOperation]: Start removeDead. Operand has 408 places, 416 transitions, 846 flow [2023-11-12 02:09:10,650 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 397 places, 405 transitions, 819 flow [2023-11-12 02:09:10,659 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:09:10,668 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 397 places, 405 transitions, 819 flow [2023-11-12 02:09:10,671 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 397 places, 405 transitions, 819 flow [2023-11-12 02:09:10,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 397 places, 405 transitions, 819 flow [2023-11-12 02:09:10,806 INFO L124 PetriNetUnfolderBase]: 15/405 cut-off events. [2023-11-12 02:09:10,806 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:09:10,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 405 events. 15/405 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 503 event pairs, 0 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 299. Up to 4 conditions per place. [2023-11-12 02:09:10,828 INFO L119 LiptonReduction]: Number of co-enabled transitions 22992