./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.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 73b3ed2538f968a3e44c5d7fd04ec7d3b91dc8bba4b6c9eed0228eaab08d1208 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:06:39,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:06:39,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:06:39,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:06:39,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:06:39,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:06:39,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:06:39,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:06:39,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:06:39,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:06:39,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:06:39,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:06:39,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:06:39,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:06:39,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:06:39,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:06:39,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:06:39,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:06:39,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:06:39,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:06:39,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:06:39,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:06:39,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:06:39,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:06:39,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:06:39,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:06:39,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:06:39,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:06:39,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:06:39,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:06:39,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:06:39,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:06:39,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:06:39,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:06:39,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:06:39,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:06:39,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:06:39,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:06:39,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:06:39,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:06:39,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:06:39,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-15 13:06:39,923 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:06:39,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:06:39,924 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:06:39,924 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:06:39,925 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:06:39,925 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:06:39,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:06:39,926 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:06:39,926 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:06:39,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:06:39,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 13:06:39,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:06:39,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 13:06:39,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:06:39,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 13:06:39,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 13:06:39,928 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:06:39,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 13:06:39,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:06:39,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:06:39,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:06:39,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:06:39,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:06:39,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:06:39,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 13:06:39,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 13:06:39,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 13:06:39,931 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 13:06:39,932 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 13:06:39,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 13:06:39,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:06:39,932 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73b3ed2538f968a3e44c5d7fd04ec7d3b91dc8bba4b6c9eed0228eaab08d1208 [2021-12-15 13:06:40,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:06:40,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:06:40,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:06:40,184 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:06:40,185 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:06:40,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-12-15 13:06:40,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/541fe2719/2363e4b58fdc4cc4853295ee4c09b736/FLAG00fe75741 [2021-12-15 13:06:40,815 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:06:40,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-12-15 13:06:40,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/541fe2719/2363e4b58fdc4cc4853295ee4c09b736/FLAG00fe75741 [2021-12-15 13:06:41,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/541fe2719/2363e4b58fdc4cc4853295ee4c09b736 [2021-12-15 13:06:41,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:06:41,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:06:41,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:06:41,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:06:41,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:06:41,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:06:41" (1/1) ... [2021-12-15 13:06:41,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4929cbed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:41, skipping insertion in model container [2021-12-15 13:06:41,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:06:41" (1/1) ... [2021-12-15 13:06:41,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:06:41,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:06:41,670 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-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i[153414,153427] [2021-12-15 13:06:41,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:06:41,853 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 13:06:41,973 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-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i[153414,153427] [2021-12-15 13:06:42,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:06:42,063 INFO L208 MainTranslator]: Completed translation [2021-12-15 13:06:42,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:42 WrapperNode [2021-12-15 13:06:42,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:06:42,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 13:06:42,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 13:06:42,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 13:06:42,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:42" (1/1) ... [2021-12-15 13:06:42,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:42" (1/1) ... [2021-12-15 13:06:42,153 INFO L137 Inliner]: procedures = 84, calls = 171, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 522 [2021-12-15 13:06:42,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 13:06:42,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 13:06:42,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 13:06:42,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 13:06:42,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:42" (1/1) ... [2021-12-15 13:06:42,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:42" (1/1) ... [2021-12-15 13:06:42,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:42" (1/1) ... [2021-12-15 13:06:42,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:42" (1/1) ... [2021-12-15 13:06:42,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:42" (1/1) ... [2021-12-15 13:06:42,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:42" (1/1) ... [2021-12-15 13:06:42,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:42" (1/1) ... [2021-12-15 13:06:42,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 13:06:42,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 13:06:42,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 13:06:42,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 13:06:42,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:42" (1/1) ... [2021-12-15 13:06:42,296 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:06:42,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 13:06:42,320 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 13:06:42,345 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 13:06:42,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 13:06:42,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-15 13:06:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 13:06:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 13:06:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-15 13:06:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-15 13:06:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-15 13:06:42,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-15 13:06:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 13:06:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-15 13:06:42,368 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-15 13:06:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 13:06:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-12-15 13:06:42,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-12-15 13:06:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-15 13:06:42,368 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-15 13:06:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-15 13:06:42,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-15 13:06:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 13:06:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 13:06:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-15 13:06:42,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-15 13:06:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2021-12-15 13:06:42,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2021-12-15 13:06:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 13:06:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-15 13:06:42,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-15 13:06:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-15 13:06:42,370 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-15 13:06:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 13:06:42,371 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 13:06:42,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 13:06:42,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 13:06:42,371 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2021-12-15 13:06:42,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2021-12-15 13:06:42,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-15 13:06:42,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 13:06:42,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 13:06:42,656 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 13:06:42,658 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 13:06:42,718 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 13:06:42,736 INFO L158 Benchmark]: Toolchain (without parser) took 1695.83ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 73.5MB in the beginning and 71.3MB in the end (delta: 2.2MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2021-12-15 13:06:42,737 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory was 65.0MB in the beginning and 64.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:06:42,737 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1025.25ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 73.2MB in the beginning and 62.1MB in the end (delta: 11.0MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2021-12-15 13:06:42,738 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.36ms. Allocated memory is still 130.0MB. Free memory was 62.1MB in the beginning and 58.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 13:06:42,739 INFO L158 Benchmark]: Boogie Preprocessor took 130.63ms. Allocated memory is still 130.0MB. Free memory was 58.0MB in the beginning and 85.4MB in the end (delta: -27.5MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2021-12-15 13:06:42,740 INFO L158 Benchmark]: RCFGBuilder took 445.70ms. Allocated memory is still 130.0MB. Free memory was 85.4MB in the beginning and 71.3MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 13:06:42,743 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory was 65.0MB in the beginning and 64.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1025.25ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 73.2MB in the beginning and 62.1MB in the end (delta: 11.0MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.36ms. Allocated memory is still 130.0MB. Free memory was 62.1MB in the beginning and 58.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 130.63ms. Allocated memory is still 130.0MB. Free memory was 58.0MB in the beginning and 85.4MB in the end (delta: -27.5MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * RCFGBuilder took 445.70ms. Allocated memory is still 130.0MB. Free memory was 85.4MB in the beginning and 71.3MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. 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 13:06:42,776 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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.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 73b3ed2538f968a3e44c5d7fd04ec7d3b91dc8bba4b6c9eed0228eaab08d1208 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:06:44,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:06:44,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:06:44,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:06:44,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:06:44,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:06:44,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:06:44,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:06:44,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:06:44,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:06:44,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:06:44,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:06:44,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:06:44,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:06:44,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:06:44,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:06:44,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:06:44,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:06:44,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:06:44,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:06:44,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:06:44,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:06:44,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:06:44,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:06:44,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:06:44,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:06:44,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:06:44,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:06:44,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:06:44,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:06:44,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:06:44,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:06:44,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:06:44,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:06:44,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:06:44,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:06:44,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:06:44,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:06:44,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:06:44,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:06:44,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:06:44,832 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-15 13:06:44,864 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:06:44,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:06:44,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:06:44,865 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:06:44,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:06:44,867 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:06:44,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:06:44,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:06:44,868 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:06:44,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:06:44,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:06:44,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 13:06:44,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:06:44,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 13:06:44,870 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 13:06:44,870 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 13:06:44,870 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 13:06:44,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 13:06:44,871 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:06:44,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 13:06:44,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:06:44,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:06:44,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:06:44,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:06:44,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:06:44,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:06:44,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 13:06:44,881 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 13:06:44,881 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 13:06:44,881 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 13:06:44,882 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 13:06:44,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 13:06:44,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:06:44,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 13:06:44,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73b3ed2538f968a3e44c5d7fd04ec7d3b91dc8bba4b6c9eed0228eaab08d1208 [2021-12-15 13:06:45,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:06:45,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:06:45,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:06:45,202 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:06:45,204 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:06:45,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-12-15 13:06:45,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/911783ff1/e22f91f73bd446c8977afea194a506ae/FLAGfb2766ce3 [2021-12-15 13:06:46,000 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:06:46,001 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-12-15 13:06:46,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/911783ff1/e22f91f73bd446c8977afea194a506ae/FLAGfb2766ce3 [2021-12-15 13:06:46,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/911783ff1/e22f91f73bd446c8977afea194a506ae [2021-12-15 13:06:46,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:06:46,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:06:46,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:06:46,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:06:46,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:06:46,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:06:46" (1/1) ... [2021-12-15 13:06:46,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c876e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:46, skipping insertion in model container [2021-12-15 13:06:46,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:06:46" (1/1) ... [2021-12-15 13:06:46,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:06:46,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:06:46,826 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-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i[153414,153427] [2021-12-15 13:06:47,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:06:47,043 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 13:06:47,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:06:47,181 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-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i[153414,153427] [2021-12-15 13:06:47,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:06:47,227 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 13:06:47,368 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-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i[153414,153427] [2021-12-15 13:06:47,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:06:47,473 INFO L208 MainTranslator]: Completed translation [2021-12-15 13:06:47,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:47 WrapperNode [2021-12-15 13:06:47,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:06:47,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 13:06:47,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 13:06:47,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 13:06:47,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:47" (1/1) ... [2021-12-15 13:06:47,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:47" (1/1) ... [2021-12-15 13:06:47,571 INFO L137 Inliner]: procedures = 97, calls = 171, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 509 [2021-12-15 13:06:47,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 13:06:47,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 13:06:47,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 13:06:47,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 13:06:47,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:47" (1/1) ... [2021-12-15 13:06:47,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:47" (1/1) ... [2021-12-15 13:06:47,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:47" (1/1) ... [2021-12-15 13:06:47,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:47" (1/1) ... [2021-12-15 13:06:47,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:47" (1/1) ... [2021-12-15 13:06:47,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:47" (1/1) ... [2021-12-15 13:06:47,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:47" (1/1) ... [2021-12-15 13:06:47,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 13:06:47,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 13:06:47,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 13:06:47,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 13:06:47,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:06:47" (1/1) ... [2021-12-15 13:06:47,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:06:47,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 13:06:47,721 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 13:06:47,743 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 13:06:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-15 13:06:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-15 13:06:47,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 13:06:47,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-15 13:06:47,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-15 13:06:47,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-15 13:06:47,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-15 13:06:47,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-15 13:06:47,760 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-15 13:06:47,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-15 13:06:47,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-15 13:06:47,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-15 13:06:47,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-15 13:06:47,761 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~X~C_INT~X~$Pointer$~X~C_INT~TO~VOID [2021-12-15 13:06:47,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~X~C_INT~X~$Pointer$~X~C_INT~TO~VOID [2021-12-15 13:06:47,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-15 13:06:47,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-15 13:06:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-15 13:06:47,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-15 13:06:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-15 13:06:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-15 13:06:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-15 13:06:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-15 13:06:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 13:06:47,763 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 13:06:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 13:06:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 13:06:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 13:06:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 13:06:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-15 13:06:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-15 13:06:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-15 13:06:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 13:06:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-12-15 13:06:47,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-12-15 13:06:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-15 13:06:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-15 13:06:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-15 13:06:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 13:06:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 13:06:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 13:06:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 13:06:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 13:06:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2021-12-15 13:06:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2021-12-15 13:06:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-15 13:06:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-15 13:06:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-15 13:06:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 13:06:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 13:06:48,074 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 13:06:48,075 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 13:06:48,218 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 13:06:48,224 INFO L158 Benchmark]: Toolchain (without parser) took 1964.47ms. Allocated memory was 58.7MB in the beginning and 92.3MB in the end (delta: 33.6MB). Free memory was 30.0MB in the beginning and 40.1MB in the end (delta: -10.1MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. [2021-12-15 13:06:48,224 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 58.7MB. Free memory was 40.7MB in the beginning and 40.7MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:06:48,225 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1210.58ms. Allocated memory was 58.7MB in the beginning and 92.3MB in the end (delta: 33.6MB). Free memory was 29.8MB in the beginning and 47.8MB in the end (delta: -18.0MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2021-12-15 13:06:48,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.73ms. Allocated memory is still 92.3MB. Free memory was 47.8MB in the beginning and 43.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 13:06:48,229 INFO L158 Benchmark]: Boogie Preprocessor took 106.11ms. Allocated memory is still 92.3MB. Free memory was 43.6MB in the beginning and 38.2MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 13:06:48,230 INFO L158 Benchmark]: RCFGBuilder took 534.92ms. Allocated memory is still 92.3MB. Free memory was 38.2MB in the beginning and 40.1MB in the end (delta: -1.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-12-15 13:06:48,236 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 58.7MB. Free memory was 40.7MB in the beginning and 40.7MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1210.58ms. Allocated memory was 58.7MB in the beginning and 92.3MB in the end (delta: 33.6MB). Free memory was 29.8MB in the beginning and 47.8MB in the end (delta: -18.0MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.73ms. Allocated memory is still 92.3MB. Free memory was 47.8MB in the beginning and 43.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.11ms. Allocated memory is still 92.3MB. Free memory was 43.6MB in the beginning and 38.2MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 534.92ms. Allocated memory is still 92.3MB. Free memory was 38.2MB in the beginning and 40.1MB in the end (delta: -1.8MB). Peak memory consumption was 13.7MB. 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 13:06:48,276 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