./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races 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_fac34d61-cf00-44a1-9e34-864a5fa221a0/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac34d61-cf00-44a1-9e34-864a5fa221a0/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_fac34d61-cf00-44a1-9e34-864a5fa221a0/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac34d61-cf00-44a1-9e34-864a5fa221a0/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac34d61-cf00-44a1-9e34-864a5fa221a0/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac34d61-cf00-44a1-9e34-864a5fa221a0/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30012893862a7e15af8bbbaf0239dbd2e8b93523943e1ee06536b5f9fb75a514 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:14:57,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:14:57,141 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac34d61-cf00-44a1-9e34-864a5fa221a0/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:14:57,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:14:57,150 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:14:57,192 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:14:57,192 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:14:57,193 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:14:57,195 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:14:57,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:14:57,200 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:14:57,201 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:14:57,201 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:14:57,203 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:14:57,204 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:14:57,204 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:14:57,205 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:14:57,205 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:14:57,205 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:14:57,206 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:14:57,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:14:57,207 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:14:57,208 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:14:57,208 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:14:57,208 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:14:57,209 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:14:57,209 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:14:57,210 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:14:57,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:14:57,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:14:57,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:14:57,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:14:57,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:14:57,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:14:57,213 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:14:57,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:14:57,214 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:14:57,214 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:14:57,214 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:14:57,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:14:57,215 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:14:57,215 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_fac34d61-cf00-44a1-9e34-864a5fa221a0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac34d61-cf00-44a1-9e34-864a5fa221a0/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30012893862a7e15af8bbbaf0239dbd2e8b93523943e1ee06536b5f9fb75a514 [2023-11-12 02:14:57,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:14:57,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:14:57,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:14:57,574 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:14:57,575 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:14:57,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac34d61-cf00-44a1-9e34-864a5fa221a0/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2023-11-12 02:15:01,119 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:15:01,864 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:15:01,865 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac34d61-cf00-44a1-9e34-864a5fa221a0/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2023-11-12 02:15:01,925 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac34d61-cf00-44a1-9e34-864a5fa221a0/bin/uautomizer-verify-uTZkv6EMXl/data/e7839f505/11475e378c7e43bfb331c94689d7654a/FLAGb596f14a8 [2023-11-12 02:15:01,942 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac34d61-cf00-44a1-9e34-864a5fa221a0/bin/uautomizer-verify-uTZkv6EMXl/data/e7839f505/11475e378c7e43bfb331c94689d7654a [2023-11-12 02:15:01,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:15:01,946 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:15:01,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:01,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:15:01,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:15:01,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:01" (1/1) ... [2023-11-12 02:15:01,959 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190f1b0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:01, skipping insertion in model container [2023-11-12 02:15:01,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:01" (1/1) ... [2023-11-12 02:15:02,108 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:15:09,361 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-12 02:15:10,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:10,243 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:15:10,583 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 02:15:10,585 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 02:15:10,586 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 02:15:10,586 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 02:15:10,789 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-12 02:15:10,830 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-12 02:15:10,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:11,482 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:11,483 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:11,483 WARN L672 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:11,483 WARN L672 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:11,483 WARN L672 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:11,484 WARN L672 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:11,484 WARN L672 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:11,492 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:15:11,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11 WrapperNode [2023-11-12 02:15:11,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:11,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:11,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:15:11,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:15:11,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,682 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,752 INFO L138 Inliner]: procedures = 1354, calls = 1453, calls flagged for inlining = 348, calls inlined = 20, statements flattened = 501 [2023-11-12 02:15:11,753 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:11,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:15:11,754 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:15:11,754 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:15:11,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,784 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,849 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,884 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:15:11,921 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:15:11,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:15:11,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:15:11,922 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:11,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac34d61-cf00-44a1-9e34-864a5fa221a0/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:11,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac34d61-cf00-44a1-9e34-864a5fa221a0/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:15:11,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac34d61-cf00-44a1-9e34-864a5fa221a0/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:15:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:15:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:15:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2023-11-12 02:15:12,014 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2023-11-12 02:15:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:15:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:15:12,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:15:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:15:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:15:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:15:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2023-11-12 02:15:12,016 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2023-11-12 02:15:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:15:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:15:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:15:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:15:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:15:12,020 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 02:15:12,509 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:15:12,512 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:13,435 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:13,527 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:13,528 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:15:13,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:13 BoogieIcfgContainer [2023-11-12 02:15:13,532 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:13,535 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:13,535 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:13,539 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:13,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:15:01" (1/3) ... [2023-11-12 02:15:13,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6264068d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:13, skipping insertion in model container [2023-11-12 02:15:13,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (2/3) ... [2023-11-12 02:15:13,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6264068d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:13, skipping insertion in model container [2023-11-12 02:15:13,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:13" (3/3) ... [2023-11-12 02:15:13,544 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2023-11-12 02:15:13,555 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:15:13,567 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:13,568 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2023-11-12 02:15:13,568 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:15:13,813 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-12 02:15:13,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 564 places, 570 transitions, 1154 flow [2023-11-12 02:15:14,190 INFO L124 PetriNetUnfolderBase]: 13/568 cut-off events. [2023-11-12 02:15:14,191 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:15:14,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 568 events. 13/568 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 650 event pairs, 0 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 480. Up to 4 conditions per place. [2023-11-12 02:15:14,209 INFO L82 GeneralOperation]: Start removeDead. Operand has 564 places, 570 transitions, 1154 flow [2023-11-12 02:15:14,228 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 553 places, 559 transitions, 1127 flow [2023-11-12 02:15:14,239 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:15:14,254 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 553 places, 559 transitions, 1127 flow [2023-11-12 02:15:14,259 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 553 places, 559 transitions, 1127 flow [2023-11-12 02:15:14,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 553 places, 559 transitions, 1127 flow [2023-11-12 02:15:14,460 INFO L124 PetriNetUnfolderBase]: 13/559 cut-off events. [2023-11-12 02:15:14,460 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:15:14,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 559 events. 13/559 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 576 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 480. Up to 4 conditions per place. [2023-11-12 02:15:14,484 INFO L119 LiptonReduction]: Number of co-enabled transitions 28566