./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.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 fe8c4b1a27642c802f8c97577aadb7892fddcd015ae43c580aa1247dba190651 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:14:46,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:14:46,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:14:46,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:14:46,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:14:46,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:14:46,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:14:46,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:14:46,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:14:46,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:14:46,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:14:46,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:14:46,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:14:46,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:14:46,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:14:46,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:14:46,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:14:46,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:14:46,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:14:46,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:14:46,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:14:46,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:14:46,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:14:46,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:14:46,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:14:46,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:14:46,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:14:46,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:14:46,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:14:46,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:14:46,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:14:46,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:14:46,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:14:46,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:14:46,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:14:46,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:14:46,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:14:46,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:14:46,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:14:46,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:14:46,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:14:46,955 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-15 13:14:46,980 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:14:46,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:14:46,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:14:46,981 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:14:46,981 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:14:46,982 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:14:46,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:14:46,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:14:46,982 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:14:46,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:14:46,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 13:14:46,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:14:46,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 13:14:46,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:14:46,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 13:14:46,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 13:14:46,984 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:14:46,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 13:14:46,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:14:46,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:14:46,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:14:46,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:14:46,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:14:46,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:14:46,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 13:14:46,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 13:14:46,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 13:14:46,986 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 13:14:46,986 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 13:14:46,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 13:14:46,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:14:46,986 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe8c4b1a27642c802f8c97577aadb7892fddcd015ae43c580aa1247dba190651 [2021-12-15 13:14:47,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:14:47,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:14:47,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:14:47,259 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:14:47,260 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:14:47,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2021-12-15 13:14:47,314 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a7765851/cc637460f5d643bb8cbf1bcff8f675af/FLAGe7af8356d [2021-12-15 13:14:47,843 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:14:47,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2021-12-15 13:14:47,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a7765851/cc637460f5d643bb8cbf1bcff8f675af/FLAGe7af8356d [2021-12-15 13:14:48,093 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a7765851/cc637460f5d643bb8cbf1bcff8f675af [2021-12-15 13:14:48,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:14:48,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:14:48,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:14:48,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:14:48,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:14:48,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:14:48" (1/1) ... [2021-12-15 13:14:48,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8b20a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:48, skipping insertion in model container [2021-12-15 13:14:48,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:14:48" (1/1) ... [2021-12-15 13:14:48,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:14:48,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:14:48,926 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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i[120162,120175] [2021-12-15 13:14:48,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:14:48,962 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 13:14:49,144 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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i[120162,120175] [2021-12-15 13:14:49,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:14:49,179 INFO L208 MainTranslator]: Completed translation [2021-12-15 13:14:49,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:49 WrapperNode [2021-12-15 13:14:49,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:14:49,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 13:14:49,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 13:14:49,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 13:14:49,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:49" (1/1) ... [2021-12-15 13:14:49,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:49" (1/1) ... [2021-12-15 13:14:49,290 INFO L137 Inliner]: procedures = 95, calls = 374, calls flagged for inlining = 31, calls inlined = 28, statements flattened = 1161 [2021-12-15 13:14:49,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 13:14:49,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 13:14:49,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 13:14:49,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 13:14:49,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:49" (1/1) ... [2021-12-15 13:14:49,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:49" (1/1) ... [2021-12-15 13:14:49,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:49" (1/1) ... [2021-12-15 13:14:49,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:49" (1/1) ... [2021-12-15 13:14:49,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:49" (1/1) ... [2021-12-15 13:14:49,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:49" (1/1) ... [2021-12-15 13:14:49,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:49" (1/1) ... [2021-12-15 13:14:49,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 13:14:49,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 13:14:49,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 13:14:49,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 13:14:49,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:49" (1/1) ... [2021-12-15 13:14:49,482 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:14:49,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 13:14:49,603 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) [2021-12-15 13:14:49,618 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 [2021-12-15 13:14:49,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 13:14:49,649 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inw [2021-12-15 13:14:49,650 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inw [2021-12-15 13:14:49,650 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outw [2021-12-15 13:14:49,650 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outw [2021-12-15 13:14:49,650 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_stop [2021-12-15 13:14:49,650 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_stop [2021-12-15 13:14:49,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-15 13:14:49,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 13:14:49,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 13:14:49,653 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_write [2021-12-15 13:14:49,654 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_write [2021-12-15 13:14:49,654 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_update_timeout [2021-12-15 13:14:49,654 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_update_timeout [2021-12-15 13:14:49,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-15 13:14:49,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-15 13:14:49,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 13:14:49,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-15 13:14:49,655 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-15 13:14:49,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 13:14:49,655 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_round_time [2021-12-15 13:14:49,656 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_round_time [2021-12-15 13:14:49,656 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2021-12-15 13:14:49,656 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2021-12-15 13:14:49,656 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-15 13:14:49,656 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-15 13:14:49,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 13:14:49,656 INFO L130 BoogieDeclarations]: Found specification of procedure superio_exit [2021-12-15 13:14:49,657 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_exit [2021-12-15 13:14:49,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 13:14:49,657 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-15 13:14:49,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-15 13:14:49,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 13:14:49,657 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-15 13:14:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-15 13:14:49,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-15 13:14:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-15 13:14:49,658 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_start [2021-12-15 13:14:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_start [2021-12-15 13:14:49,658 INFO L130 BoogieDeclarations]: Found specification of procedure superio_select [2021-12-15 13:14:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_select [2021-12-15 13:14:49,659 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-15 13:14:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-15 13:14:49,659 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-15 13:14:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-15 13:14:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-15 13:14:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-15 13:14:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-15 13:14:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-15 13:14:49,661 INFO L130 BoogieDeclarations]: Found specification of procedure superio_enter [2021-12-15 13:14:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_enter [2021-12-15 13:14:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-15 13:14:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-15 13:14:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 13:14:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 13:14:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 13:14:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_keepalive [2021-12-15 13:14:49,671 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_keepalive [2021-12-15 13:14:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-15 13:14:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-15 13:14:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inb [2021-12-15 13:14:49,673 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inb [2021-12-15 13:14:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outb [2021-12-15 13:14:49,685 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outb [2021-12-15 13:14:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 13:14:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2021-12-15 13:14:49,686 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2021-12-15 13:14:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-15 13:14:49,686 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-15 13:14:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 13:14:49,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 13:14:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-15 13:14:49,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-15 13:14:50,027 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 13:14:50,029 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 13:14:50,186 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 13:14:50,190 INFO L158 Benchmark]: Toolchain (without parser) took 2092.84ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 129.3MB in the end (delta: 4.8MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. [2021-12-15 13:14:50,190 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 41.6MB in the beginning and 41.5MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:14:50,190 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1084.97ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 91.9MB in the end (delta: 42.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2021-12-15 13:14:50,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.99ms. Allocated memory is still 167.8MB. Free memory was 91.9MB in the beginning and 85.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 13:14:50,191 INFO L158 Benchmark]: Boogie Preprocessor took 174.67ms. Allocated memory is still 167.8MB. Free memory was 85.6MB in the beginning and 79.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 13:14:50,192 INFO L158 Benchmark]: RCFGBuilder took 714.88ms. Allocated memory is still 167.8MB. Free memory was 79.3MB in the beginning and 129.3MB in the end (delta: -50.0MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2021-12-15 13:14:50,193 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 41.6MB in the beginning and 41.5MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1084.97ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 91.9MB in the end (delta: 42.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.99ms. Allocated memory is still 167.8MB. Free memory was 91.9MB in the beginning and 85.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 174.67ms. Allocated memory is still 167.8MB. Free memory was 85.6MB in the beginning and 79.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 714.88ms. Allocated memory is still 167.8MB. Free memory was 79.3MB in the beginning and 129.3MB in the end (delta: -50.0MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 13:14:50,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 fe8c4b1a27642c802f8c97577aadb7892fddcd015ae43c580aa1247dba190651 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:14:51,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:14:51,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:14:51,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:14:51,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:14:51,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:14:51,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:14:51,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:14:51,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:14:51,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:14:51,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:14:51,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:14:51,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:14:51,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:14:51,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:14:51,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:14:51,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:14:51,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:14:51,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:14:51,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:14:51,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:14:51,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:14:51,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:14:51,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:14:51,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:14:51,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:14:51,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:14:51,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:14:51,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:14:51,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:14:51,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:14:51,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:14:51,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:14:51,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:14:51,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:14:51,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:14:51,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:14:51,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:14:51,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:14:51,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:14:51,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:14:51,977 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-15 13:14:52,001 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:14:52,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:14:52,003 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:14:52,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:14:52,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:14:52,004 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:14:52,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:14:52,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:14:52,005 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:14:52,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:14:52,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:14:52,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 13:14:52,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:14:52,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 13:14:52,006 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 13:14:52,006 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 13:14:52,006 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 13:14:52,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 13:14:52,007 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:14:52,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 13:14:52,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:14:52,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:14:52,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:14:52,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:14:52,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:14:52,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:14:52,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 13:14:52,008 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 13:14:52,008 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 13:14:52,008 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 13:14:52,008 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 13:14:52,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 13:14:52,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:14:52,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 13:14:52,009 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe8c4b1a27642c802f8c97577aadb7892fddcd015ae43c580aa1247dba190651 [2021-12-15 13:14:52,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:14:52,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:14:52,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:14:52,316 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:14:52,317 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:14:52,318 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2021-12-15 13:14:52,381 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6c962080/d8a357be6ddf4e6a81ff8e7dc2b0c731/FLAG6b87a3e4e [2021-12-15 13:14:52,977 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:14:52,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2021-12-15 13:14:53,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6c962080/d8a357be6ddf4e6a81ff8e7dc2b0c731/FLAG6b87a3e4e [2021-12-15 13:14:53,361 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6c962080/d8a357be6ddf4e6a81ff8e7dc2b0c731 [2021-12-15 13:14:53,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:14:53,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:14:53,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:14:53,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:14:53,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:14:53,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:14:53" (1/1) ... [2021-12-15 13:14:53,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193e18c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:53, skipping insertion in model container [2021-12-15 13:14:53,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:14:53" (1/1) ... [2021-12-15 13:14:53,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:14:53,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:14:54,120 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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i[120162,120175] [2021-12-15 13:14:54,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:14:54,202 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 13:14:54,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:14:54,369 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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i[120162,120175] [2021-12-15 13:14:54,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:14:54,393 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 13:14:54,497 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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i[120162,120175] [2021-12-15 13:14:54,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:14:54,544 INFO L208 MainTranslator]: Completed translation [2021-12-15 13:14:54,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:54 WrapperNode [2021-12-15 13:14:54,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:14:54,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 13:14:54,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 13:14:54,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 13:14:54,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:54" (1/1) ... [2021-12-15 13:14:54,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:54" (1/1) ... [2021-12-15 13:14:54,658 INFO L137 Inliner]: procedures = 105, calls = 374, calls flagged for inlining = 31, calls inlined = 28, statements flattened = 1097 [2021-12-15 13:14:54,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 13:14:54,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 13:14:54,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 13:14:54,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 13:14:54,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:54" (1/1) ... [2021-12-15 13:14:54,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:54" (1/1) ... [2021-12-15 13:14:54,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:54" (1/1) ... [2021-12-15 13:14:54,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:54" (1/1) ... [2021-12-15 13:14:54,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:54" (1/1) ... [2021-12-15 13:14:54,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:54" (1/1) ... [2021-12-15 13:14:54,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:54" (1/1) ... [2021-12-15 13:14:54,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 13:14:54,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 13:14:54,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 13:14:54,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 13:14:54,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:14:54" (1/1) ... [2021-12-15 13:14:54,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:14:54,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 13:14:54,800 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) [2021-12-15 13:14:54,813 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 [2021-12-15 13:14:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_stop [2021-12-15 13:14:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_stop [2021-12-15 13:14:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_write [2021-12-15 13:14:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_write [2021-12-15 13:14:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_update_timeout [2021-12-15 13:14:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_update_timeout [2021-12-15 13:14:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-15 13:14:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 13:14:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-15 13:14:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-15 13:14:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-15 13:14:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-15 13:14:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_round_time [2021-12-15 13:14:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_round_time [2021-12-15 13:14:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2021-12-15 13:14:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2021-12-15 13:14:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-15 13:14:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-15 13:14:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure superio_exit [2021-12-15 13:14:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_exit [2021-12-15 13:14:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-15 13:14:54,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-15 13:14:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-15 13:14:54,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-15 13:14:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure superio_select [2021-12-15 13:14:54,840 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_select [2021-12-15 13:14:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-15 13:14:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-15 13:14:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-15 13:14:54,841 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-15 13:14:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure superio_enter [2021-12-15 13:14:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_enter [2021-12-15 13:14:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-15 13:14:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-15 13:14:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 13:14:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 13:14:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_keepalive [2021-12-15 13:14:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_keepalive [2021-12-15 13:14:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inb [2021-12-15 13:14:54,843 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inb [2021-12-15 13:14:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outb [2021-12-15 13:14:54,843 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outb [2021-12-15 13:14:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 13:14:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-15 13:14:54,843 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-15 13:14:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-15 13:14:54,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-15 13:14:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 13:14:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inw [2021-12-15 13:14:54,844 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inw [2021-12-15 13:14:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outw [2021-12-15 13:14:54,845 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outw [2021-12-15 13:14:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 13:14:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 13:14:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 13:14:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-15 13:14:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 13:14:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 13:14:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 13:14:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-15 13:14:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 13:14:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 13:14:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-15 13:14:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-15 13:14:54,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-15 13:14:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_start [2021-12-15 13:14:54,848 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_start [2021-12-15 13:14:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-15 13:14:54,848 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-15 13:14:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-15 13:14:54,848 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-15 13:14:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-15 13:14:54,849 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-15 13:14:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-15 13:14:54,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-15 13:14:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2021-12-15 13:14:54,849 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2021-12-15 13:14:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 13:14:54,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 13:14:55,093 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 13:14:55,095 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 13:14:55,284 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 13:14:55,289 INFO L158 Benchmark]: Toolchain (without parser) took 1923.77ms. Allocated memory was 77.6MB in the beginning and 127.9MB in the end (delta: 50.3MB). Free memory was 55.6MB in the beginning and 64.5MB in the end (delta: -8.9MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2021-12-15 13:14:55,290 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 77.6MB. Free memory was 58.4MB in the beginning and 58.3MB in the end (delta: 48.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:14:55,291 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1178.81ms. Allocated memory was 77.6MB in the beginning and 127.9MB in the end (delta: 50.3MB). Free memory was 55.4MB in the beginning and 60.3MB in the end (delta: -4.8MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2021-12-15 13:14:55,292 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.37ms. Allocated memory is still 127.9MB. Free memory was 60.3MB in the beginning and 90.9MB in the end (delta: -30.7MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2021-12-15 13:14:55,292 INFO L158 Benchmark]: Boogie Preprocessor took 107.68ms. Allocated memory is still 127.9MB. Free memory was 90.9MB in the beginning and 84.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 13:14:55,293 INFO L158 Benchmark]: RCFGBuilder took 520.65ms. Allocated memory is still 127.9MB. Free memory was 84.6MB in the beginning and 64.5MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-15 13:14:55,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 77.6MB. Free memory was 58.4MB in the beginning and 58.3MB in the end (delta: 48.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1178.81ms. Allocated memory was 77.6MB in the beginning and 127.9MB in the end (delta: 50.3MB). Free memory was 55.4MB in the beginning and 60.3MB in the end (delta: -4.8MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.37ms. Allocated memory is still 127.9MB. Free memory was 60.3MB in the beginning and 90.9MB in the end (delta: -30.7MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 107.68ms. Allocated memory is still 127.9MB. Free memory was 90.9MB in the beginning and 84.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 520.65ms. Allocated memory is still 127.9MB. Free memory was 84.6MB in the beginning and 64.5MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 13:14:55,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable