./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/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 ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 64bit --witnessprinter.graph.data.programhash db09076fa9a5c529090d66c116e7ec6dbccd2fd7809e50a63c87ed8084989776 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:01:47,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:01:47,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:01:47,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:01:47,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:01:47,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:01:47,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:01:47,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:01:47,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:01:47,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:01:47,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:01:47,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:01:47,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:01:47,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:01:47,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:01:47,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:01:47,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:01:47,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:01:47,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:01:47,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:01:47,542 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:01:47,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:01:47,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:01:47,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:01:47,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:01:47,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:01:47,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:01:47,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:01:47,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:01:47,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:01:47,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:01:47,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:01:47,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:01:47,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:01:47,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:01:47,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:01:47,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:01:47,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:01:47,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:01:47,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:01:47,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:01:47,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:01:47,557 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 00:01:47,575 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:01:47,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:01:47,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:01:47,576 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:01:47,577 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:01:47,577 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:01:47,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:01:47,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:01:47,578 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:01:47,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:01:47,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 00:01:47,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:01:47,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:01:47,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:01:47,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:01:47,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:01:47,582 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:01:47,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:01:47,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:01:47,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:01:47,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:01:47,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:01:47,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:01:47,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:01:47,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:01:47,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 00:01:47,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 00:01:47,585 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:01:47,585 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:01:47,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:01:47,585 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db09076fa9a5c529090d66c116e7ec6dbccd2fd7809e50a63c87ed8084989776 [2022-07-23 00:01:47,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:01:47,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:01:47,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:01:47,811 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:01:47,813 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:01:47,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i [2022-07-23 00:01:47,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f91671efc/77fe3f8d7c234d79a09c23f1a82be9d0/FLAGeb8c136b5 [2022-07-23 00:01:48,463 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:01:48,464 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i [2022-07-23 00:01:48,483 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f91671efc/77fe3f8d7c234d79a09c23f1a82be9d0/FLAGeb8c136b5 [2022-07-23 00:01:48,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f91671efc/77fe3f8d7c234d79a09c23f1a82be9d0 [2022-07-23 00:01:48,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:01:48,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:01:48,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:01:48,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:01:48,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:01:48,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:01:48" (1/1) ... [2022-07-23 00:01:48,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38145721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:01:48, skipping insertion in model container [2022-07-23 00:01:48,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:01:48" (1/1) ... [2022-07-23 00:01:48,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:01:48,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:01:49,347 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1268] [2022-07-23 00:01:49,356 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1269-1270] [2022-07-23 00:01:49,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i[40937,40950] [2022-07-23 00:01:49,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:01:49,872 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:01:49,903 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1268] [2022-07-23 00:01:49,903 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1269-1270] [2022-07-23 00:01:49,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i[40937,40950] [2022-07-23 00:01:49,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:01:50,081 INFO L208 MainTranslator]: Completed translation [2022-07-23 00:01:50,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:01:50 WrapperNode [2022-07-23 00:01:50,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 00:01:50,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 00:01:50,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 00:01:50,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 00:01:50,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:01:50" (1/1) ... [2022-07-23 00:01:50,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:01:50" (1/1) ... [2022-07-23 00:01:50,202 INFO L137 Inliner]: procedures = 93, calls = 956, calls flagged for inlining = 31, calls inlined = 28, statements flattened = 1490 [2022-07-23 00:01:50,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 00:01:50,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 00:01:50,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 00:01:50,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 00:01:50,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:01:50" (1/1) ... [2022-07-23 00:01:50,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:01:50" (1/1) ... [2022-07-23 00:01:50,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:01:50" (1/1) ... [2022-07-23 00:01:50,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:01:50" (1/1) ... [2022-07-23 00:01:50,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:01:50" (1/1) ... [2022-07-23 00:01:50,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:01:50" (1/1) ... [2022-07-23 00:01:50,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:01:50" (1/1) ... [2022-07-23 00:01:50,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 00:01:50,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 00:01:50,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 00:01:50,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 00:01:50,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:01:50" (1/1) ... [2022-07-23 00:01:50,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:01:50,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:01:50,352 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) [2022-07-23 00:01:50,377 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 [2022-07-23 00:01:50,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 00:01:50,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 00:01:50,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 00:01:50,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 00:01:50,395 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_device_unregister_n [2022-07-23 00:01:50,395 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_device_unregister_n [2022-07-23 00:01:50,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 00:01:50,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 00:01:50,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 00:01:50,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 00:01:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 00:01:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 00:01:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure ff_validate [2022-07-23 00:01:50,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_validate [2022-07-23 00:01:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 00:01:50,396 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 00:01:50,397 INFO L130 BoogieDeclarations]: Found specification of procedure ff_irq_request [2022-07-23 00:01:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_irq_request [2022-07-23 00:01:50,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 00:01:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 00:01:50,397 INFO L130 BoogieDeclarations]: Found specification of procedure device_unregister [2022-07-23 00:01:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unregister [2022-07-23 00:01:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure ff_reprogram [2022-07-23 00:01:50,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_reprogram [2022-07-23 00:01:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure ff_writel [2022-07-23 00:01:50,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_writel [2022-07-23 00:01:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 00:01:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 00:01:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 00:01:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure ff_readl [2022-07-23 00:01:50,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_readl [2022-07-23 00:01:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 00:01:50,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 00:01:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_device_register_n [2022-07-23 00:01:50,399 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_device_register_n [2022-07-23 00:01:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-07-23 00:01:50,400 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-07-23 00:01:50,400 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-23 00:01:50,400 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-23 00:01:50,400 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 00:01:50,400 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 00:01:50,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 00:01:50,401 INFO L130 BoogieDeclarations]: Found specification of procedure ff_dev_create [2022-07-23 00:01:50,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_dev_create [2022-07-23 00:01:50,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 00:01:50,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-23 00:01:50,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-23 00:01:50,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-23 00:01:50,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 00:01:50,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 00:01:50,402 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-23 00:01:50,402 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-23 00:01:50,402 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-23 00:01:50,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-23 00:01:50,706 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 00:01:50,709 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 00:01:50,779 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 00:06:23,343 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 00:06:23,356 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 00:06:23,356 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 00:06:23,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:06:23 BoogieIcfgContainer [2022-07-23 00:06:23,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 00:06:23,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 00:06:23,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 00:06:23,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 00:06:23,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 12:01:48" (1/3) ... [2022-07-23 00:06:23,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e93a575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:06:23, skipping insertion in model container [2022-07-23 00:06:23,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:01:50" (2/3) ... [2022-07-23 00:06:23,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e93a575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:06:23, skipping insertion in model container [2022-07-23 00:06:23,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:06:23" (3/3) ... [2022-07-23 00:06:23,370 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i [2022-07-23 00:06:23,385 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 00:06:23,385 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 00:06:23,458 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 00:06:23,468 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=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7752e0b2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1ea747db [2022-07-23 00:06:23,468 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 00:06:23,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 272 states, 200 states have (on average 1.385) internal successors, (277), 208 states have internal predecessors, (277), 52 states have call successors, (52), 19 states have call predecessors, (52), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-07-23 00:06:23,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-23 00:06:23,488 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:06:23,489 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:06:23,489 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:06:23,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:06:23,495 INFO L85 PathProgramCache]: Analyzing trace with hash 862092015, now seen corresponding path program 1 times [2022-07-23 00:06:23,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:06:23,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48887760] [2022-07-23 00:06:23,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:06:23,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:06:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:06:25,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:06:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:06:25,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:06:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:06:25,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:06:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:06:25,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:06:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:06:25,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:06:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:06:25,495 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-23 00:06:25,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:06:25,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48887760] [2022-07-23 00:06:25,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48887760] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:06:25,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:06:25,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 00:06:25,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746516008] [2022-07-23 00:06:25,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:06:25,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 00:06:25,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:06:25,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 00:06:25,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 00:06:25,535 INFO L87 Difference]: Start difference. First operand has 272 states, 200 states have (on average 1.385) internal successors, (277), 208 states have internal predecessors, (277), 52 states have call successors, (52), 19 states have call predecessors, (52), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-23 00:06:27,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:06:29,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:06:29,856 INFO L93 Difference]: Finished difference Result 557 states and 800 transitions. [2022-07-23 00:06:29,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 00:06:29,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 49 [2022-07-23 00:06:29,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:06:29,871 INFO L225 Difference]: With dead ends: 557 [2022-07-23 00:06:29,871 INFO L226 Difference]: Without dead ends: 272 [2022-07-23 00:06:29,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 00:06:29,878 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 60 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:06:29,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 842 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 183 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-07-23 00:06:29,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-07-23 00:06:29,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 255. [2022-07-23 00:06:29,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 191 states have (on average 1.356020942408377) internal successors, (259), 192 states have internal predecessors, (259), 46 states have call successors, (46), 18 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-07-23 00:06:29,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 350 transitions. [2022-07-23 00:06:29,974 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 350 transitions. Word has length 49 [2022-07-23 00:06:29,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:06:29,975 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 350 transitions. [2022-07-23 00:06:29,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-23 00:06:29,976 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 350 transitions. [2022-07-23 00:06:29,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 00:06:29,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:06:29,983 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:06:29,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 00:06:29,984 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:06:29,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:06:29,985 INFO L85 PathProgramCache]: Analyzing trace with hash 788973138, now seen corresponding path program 1 times [2022-07-23 00:06:29,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:06:29,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717642048] [2022-07-23 00:06:29,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:06:29,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms