./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.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-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.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 8bd4d18c7774801c1dd2fcc01cd37afd9da2c99096cf08f4bd160d17156b286b --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:11:05,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:11:05,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:11:05,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:11:05,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:11:05,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:11:05,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:11:05,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:11:05,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:11:05,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:11:05,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:11:05,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:11:05,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:11:05,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:11:05,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:11:05,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:11:05,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:11:05,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:11:05,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:11:05,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:11:05,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:11:05,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:11:05,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:11:05,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:11:05,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:11:05,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:11:05,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:11:05,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:11:05,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:11:05,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:11:05,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:11:05,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:11:05,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:11:05,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:11:05,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:11:05,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:11:05,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:11:05,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:11:05,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:11:05,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:11:05,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:11:05,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-15 13:11:05,611 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:11:05,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:11:05,611 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:11:05,611 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:11:05,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:11:05,612 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:11:05,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:11:05,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:11:05,613 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:11:05,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:11:05,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 13:11:05,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:11:05,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 13:11:05,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:11:05,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 13:11:05,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 13:11:05,614 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:11:05,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 13:11:05,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:11:05,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:11:05,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:11:05,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:11:05,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:11:05,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:11:05,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 13:11:05,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 13:11:05,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 13:11:05,616 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 13:11:05,616 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 13:11:05,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 13:11:05,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:11:05,617 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bd4d18c7774801c1dd2fcc01cd37afd9da2c99096cf08f4bd160d17156b286b [2021-12-15 13:11:05,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:11:05,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:11:05,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:11:05,870 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:11:05,870 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:11:05,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-15 13:11:05,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0801b931/7a75b6d096074c0aa08dcaf22e288d78/FLAG0bfa1b169 [2021-12-15 13:11:06,452 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:11:06,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-15 13:11:06,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0801b931/7a75b6d096074c0aa08dcaf22e288d78/FLAG0bfa1b169 [2021-12-15 13:11:06,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0801b931/7a75b6d096074c0aa08dcaf22e288d78 [2021-12-15 13:11:06,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:11:06,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:11:06,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:11:06,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:11:06,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:11:06,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:11:06" (1/1) ... [2021-12-15 13:11:06,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac8946d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:06, skipping insertion in model container [2021-12-15 13:11:06,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:11:06" (1/1) ... [2021-12-15 13:11:06,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:11:07,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:11:07,558 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-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i[113815,113828] [2021-12-15 13:11:07,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:11:07,609 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 13:11:07,715 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-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i[113815,113828] [2021-12-15 13:11:07,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:11:07,739 INFO L208 MainTranslator]: Completed translation [2021-12-15 13:11:07,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:07 WrapperNode [2021-12-15 13:11:07,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:11:07,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 13:11:07,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 13:11:07,742 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 13:11:07,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:07" (1/1) ... [2021-12-15 13:11:07,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:07" (1/1) ... [2021-12-15 13:11:07,840 INFO L137 Inliner]: procedures = 109, calls = 310, calls flagged for inlining = 49, calls inlined = 43, statements flattened = 770 [2021-12-15 13:11:07,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 13:11:07,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 13:11:07,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 13:11:07,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 13:11:07,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:07" (1/1) ... [2021-12-15 13:11:07,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:07" (1/1) ... [2021-12-15 13:11:07,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:07" (1/1) ... [2021-12-15 13:11:07,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:07" (1/1) ... [2021-12-15 13:11:07,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:07" (1/1) ... [2021-12-15 13:11:07,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:07" (1/1) ... [2021-12-15 13:11:07,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:07" (1/1) ... [2021-12-15 13:11:07,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 13:11:07,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 13:11:07,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 13:11:07,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 13:11:07,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:07" (1/1) ... [2021-12-15 13:11:07,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:11:07,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 13:11:08,005 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 13:11:08,023 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 13:11:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-15 13:11:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-15 13:11:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 13:11:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-15 13:11:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-15 13:11:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-15 13:11:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-15 13:11:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-15 13:11:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-15 13:11:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-12-15 13:11:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-12-15 13:11:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 13:11:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-15 13:11:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-15 13:11:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-15 13:11:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-15 13:11:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_disconnect [2021-12-15 13:11:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_disconnect [2021-12-15 13:11:08,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-15 13:11:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-15 13:11:08,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 13:11:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 13:11:08,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 13:11:08,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 13:11:08,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-15 13:11:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-15 13:11:08,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 13:11:08,041 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-12-15 13:11:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-12-15 13:11:08,041 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-12-15 13:11:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-12-15 13:11:08,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2021-12-15 13:11:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2021-12-15 13:11:08,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 13:11:08,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 13:11:08,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 13:11:08,042 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-15 13:11:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-15 13:11:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-15 13:11:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-15 13:11:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 13:11:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 13:11:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 13:11:08,328 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 13:11:08,329 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 13:11:08,400 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 13:11:08,405 INFO L158 Benchmark]: Toolchain (without parser) took 1443.24ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 67.2MB in the beginning and 53.0MB in the end (delta: 14.2MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2021-12-15 13:11:08,406 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 90.2MB. Free memory was 70.4MB in the beginning and 70.4MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:11:08,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 779.48ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 67.2MB in the beginning and 54.0MB in the end (delta: 13.3MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2021-12-15 13:11:08,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.15ms. Allocated memory is still 113.2MB. Free memory was 54.0MB in the beginning and 74.5MB in the end (delta: -20.6MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2021-12-15 13:11:08,411 INFO L158 Benchmark]: Boogie Preprocessor took 86.04ms. Allocated memory is still 113.2MB. Free memory was 74.5MB in the beginning and 68.8MB in the end (delta: 5.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 13:11:08,411 INFO L158 Benchmark]: RCFGBuilder took 470.54ms. Allocated memory is still 113.2MB. Free memory was 68.8MB in the beginning and 53.0MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 13:11:08,419 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 90.2MB. Free memory was 70.4MB in the beginning and 70.4MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 779.48ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 67.2MB in the beginning and 54.0MB in the end (delta: 13.3MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.15ms. Allocated memory is still 113.2MB. Free memory was 54.0MB in the beginning and 74.5MB in the end (delta: -20.6MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.04ms. Allocated memory is still 113.2MB. Free memory was 74.5MB in the beginning and 68.8MB in the end (delta: 5.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 470.54ms. Allocated memory is still 113.2MB. Free memory was 68.8MB in the beginning and 53.0MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. 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 13:11:08,469 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 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-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.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 8bd4d18c7774801c1dd2fcc01cd37afd9da2c99096cf08f4bd160d17156b286b --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:11:10,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:11:10,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:11:10,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:11:10,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:11:10,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:11:10,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:11:10,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:11:10,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:11:10,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:11:10,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:11:10,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:11:10,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:11:10,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:11:10,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:11:10,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:11:10,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:11:10,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:11:10,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:11:10,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:11:10,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:11:10,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:11:10,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:11:10,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:11:10,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:11:10,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:11:10,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:11:10,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:11:10,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:11:10,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:11:10,394 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:11:10,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:11:10,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:11:10,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:11:10,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:11:10,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:11:10,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:11:10,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:11:10,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:11:10,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:11:10,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:11:10,400 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-15 13:11:10,429 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:11:10,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:11:10,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:11:10,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:11:10,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:11:10,432 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:11:10,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:11:10,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:11:10,433 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:11:10,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:11:10,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:11:10,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 13:11:10,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:11:10,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 13:11:10,434 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 13:11:10,435 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 13:11:10,435 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 13:11:10,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 13:11:10,435 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:11:10,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 13:11:10,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:11:10,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:11:10,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:11:10,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:11:10,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:11:10,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:11:10,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 13:11:10,445 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 13:11:10,445 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 13:11:10,446 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 13:11:10,446 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 13:11:10,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 13:11:10,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:11:10,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 13:11:10,446 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bd4d18c7774801c1dd2fcc01cd37afd9da2c99096cf08f4bd160d17156b286b [2021-12-15 13:11:10,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:11:10,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:11:10,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:11:10,737 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:11:10,737 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:11:10,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-15 13:11:10,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f86c3e5e/9c6bf2c01e034186a7ea51bd860766e0/FLAG3eb93f406 [2021-12-15 13:11:11,531 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:11:11,532 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-15 13:11:11,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f86c3e5e/9c6bf2c01e034186a7ea51bd860766e0/FLAG3eb93f406 [2021-12-15 13:11:11,628 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f86c3e5e/9c6bf2c01e034186a7ea51bd860766e0 [2021-12-15 13:11:11,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:11:11,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:11:11,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:11:11,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:11:11,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:11:11,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:11:11" (1/1) ... [2021-12-15 13:11:11,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@725758de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:11, skipping insertion in model container [2021-12-15 13:11:11,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:11:11" (1/1) ... [2021-12-15 13:11:11,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:11:11,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:11:12,230 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-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i[113815,113828] [2021-12-15 13:11:12,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:11:12,306 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 13:11:12,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:11:12,446 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-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i[113815,113828] [2021-12-15 13:11:12,469 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:11:12,479 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 13:11:12,591 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-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i[113815,113828] [2021-12-15 13:11:12,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:11:12,635 INFO L208 MainTranslator]: Completed translation [2021-12-15 13:11:12,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:12 WrapperNode [2021-12-15 13:11:12,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:11:12,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 13:11:12,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 13:11:12,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 13:11:12,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:12" (1/1) ... [2021-12-15 13:11:12,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:12" (1/1) ... [2021-12-15 13:11:12,731 INFO L137 Inliner]: procedures = 118, calls = 310, calls flagged for inlining = 49, calls inlined = 43, statements flattened = 750 [2021-12-15 13:11:12,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 13:11:12,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 13:11:12,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 13:11:12,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 13:11:12,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:12" (1/1) ... [2021-12-15 13:11:12,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:12" (1/1) ... [2021-12-15 13:11:12,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:12" (1/1) ... [2021-12-15 13:11:12,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:12" (1/1) ... [2021-12-15 13:11:12,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:12" (1/1) ... [2021-12-15 13:11:12,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:12" (1/1) ... [2021-12-15 13:11:12,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:12" (1/1) ... [2021-12-15 13:11:12,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 13:11:12,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 13:11:12,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 13:11:12,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 13:11:12,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:11:12" (1/1) ... [2021-12-15 13:11:12,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:11:12,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 13:11:12,842 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 13:11:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-15 13:11:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-15 13:11:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 13:11:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-15 13:11:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-15 13:11:12,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-15 13:11:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-15 13:11:12,870 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-15 13:11:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-15 13:11:12,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-15 13:11:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-15 13:11:12,870 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-15 13:11:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-12-15 13:11:12,870 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-12-15 13:11:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-15 13:11:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-15 13:11:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-15 13:11:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-15 13:11:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_disconnect [2021-12-15 13:11:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_disconnect [2021-12-15 13:11:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-15 13:11:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-15 13:11:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 13:11:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 13:11:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 13:11:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 13:11:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-15 13:11:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-15 13:11:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 13:11:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-12-15 13:11:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-12-15 13:11:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-12-15 13:11:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-12-15 13:11:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2021-12-15 13:11:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2021-12-15 13:11:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 13:11:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-15 13:11:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-15 13:11:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 13:11:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 13:11:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 13:11:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-15 13:11:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-15 13:11:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-15 13:11:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 13:11:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 13:11:12,859 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 13:11:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-15 13:11:12,876 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-15 13:11:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-15 13:11:12,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 13:11:12,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 13:11:13,125 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 13:11:13,127 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 13:11:13,213 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 13:11:13,221 INFO L158 Benchmark]: Toolchain (without parser) took 1582.86ms. Allocated memory was 50.3MB in the beginning and 86.0MB in the end (delta: 35.7MB). Free memory was 31.9MB in the beginning and 33.7MB in the end (delta: -1.8MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2021-12-15 13:11:13,221 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 50.3MB. Free memory was 32.3MB in the beginning and 32.3MB in the end (delta: 39.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:11:13,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1000.29ms. Allocated memory was 50.3MB in the beginning and 86.0MB in the end (delta: 35.7MB). Free memory was 31.6MB in the beginning and 45.7MB in the end (delta: -14.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-12-15 13:11:13,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.55ms. Allocated memory is still 86.0MB. Free memory was 45.7MB in the beginning and 39.9MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 13:11:13,223 INFO L158 Benchmark]: Boogie Preprocessor took 63.93ms. Allocated memory is still 86.0MB. Free memory was 39.9MB in the beginning and 33.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 13:11:13,223 INFO L158 Benchmark]: RCFGBuilder took 417.23ms. Allocated memory is still 86.0MB. Free memory was 33.7MB in the beginning and 33.7MB in the end (delta: -10.7kB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2021-12-15 13:11:13,225 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 50.3MB. Free memory was 32.3MB in the beginning and 32.3MB in the end (delta: 39.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1000.29ms. Allocated memory was 50.3MB in the beginning and 86.0MB in the end (delta: 35.7MB). Free memory was 31.6MB in the beginning and 45.7MB in the end (delta: -14.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.55ms. Allocated memory is still 86.0MB. Free memory was 45.7MB in the beginning and 39.9MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.93ms. Allocated memory is still 86.0MB. Free memory was 39.9MB in the beginning and 33.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 417.23ms. Allocated memory is still 86.0MB. Free memory was 33.7MB in the beginning and 33.7MB in the end (delta: -10.7kB). Peak memory consumption was 6.7MB. 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 13:11:13,268 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