./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-misc-c2port-core.ko.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-3.0/usb_urb-drivers-misc-c2port-core.ko.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 623160d4598cd0ad84c7dc43ec65a6f971cb966f22ee32963f1c0c6e1de756e1 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:33:58,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:33:58,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:33:58,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:33:58,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:33:58,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:33:58,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:33:58,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:33:58,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:33:58,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:33:58,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:33:58,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:33:58,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:33:58,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:33:58,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:33:58,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:33:58,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:33:58,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:33:58,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:33:58,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:33:58,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:33:58,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:33:58,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:33:58,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:33:58,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:33:58,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:33:58,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:33:58,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:33:58,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:33:58,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:33:58,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:33:58,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:33:58,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:33:58,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:33:58,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:33:58,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:33:58,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:33:58,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:33:58,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:33:58,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:33:58,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:33:58,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-15 12:33:58,779 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:33:58,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:33:58,779 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:33:58,780 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:33:58,780 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:33:58,780 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:33:58,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:33:58,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:33:58,781 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:33:58,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:33:58,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:33:58,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:33:58,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:33:58,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:33:58,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:33:58,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:33:58,782 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:33:58,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:33:58,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:33:58,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:33:58,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:33:58,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:33:58,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:33:58,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:33:58,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:33:58,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:33:58,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:33:58,784 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:33:58,784 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:33:58,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:33:58,784 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:33:58,784 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 623160d4598cd0ad84c7dc43ec65a6f971cb966f22ee32963f1c0c6e1de756e1 [2021-12-15 12:33:58,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:33:59,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:33:59,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:33:59,021 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:33:59,022 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:33:59,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-misc-c2port-core.ko.cil.out.i [2021-12-15 12:33:59,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/077cd0eac/8d5922ef62954798b3f281e6cfc091aa/FLAGbc3a99bc7 [2021-12-15 12:33:59,751 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:33:59,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-misc-c2port-core.ko.cil.out.i [2021-12-15 12:33:59,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/077cd0eac/8d5922ef62954798b3f281e6cfc091aa/FLAGbc3a99bc7 [2021-12-15 12:33:59,977 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/077cd0eac/8d5922ef62954798b3f281e6cfc091aa [2021-12-15 12:33:59,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:33:59,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:33:59,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:33:59,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:33:59,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:33:59,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:33:59" (1/1) ... [2021-12-15 12:33:59,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e3f8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:33:59, skipping insertion in model container [2021-12-15 12:33:59,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:33:59" (1/1) ... [2021-12-15 12:33:59,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:34:00,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:34:00,813 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-3.0/usb_urb-drivers-misc-c2port-core.ko.cil.out.i[148506,148519] [2021-12-15 12:34:00,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:34:00,875 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:34:01,073 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-3.0/usb_urb-drivers-misc-c2port-core.ko.cil.out.i[148506,148519] [2021-12-15 12:34:01,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:34:01,137 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:34:01,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:01 WrapperNode [2021-12-15 12:34:01,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:34:01,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:34:01,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:34:01,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:34:01,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:01" (1/1) ... [2021-12-15 12:34:01,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:01" (1/1) ... [2021-12-15 12:34:01,252 INFO L137 Inliner]: procedures = 103, calls = 815, calls flagged for inlining = 27, calls inlined = 10, statements flattened = 1031 [2021-12-15 12:34:01,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:34:01,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:34:01,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:34:01,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:34:01,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:01" (1/1) ... [2021-12-15 12:34:01,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:01" (1/1) ... [2021-12-15 12:34:01,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:01" (1/1) ... [2021-12-15 12:34:01,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:01" (1/1) ... [2021-12-15 12:34:01,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:01" (1/1) ... [2021-12-15 12:34:01,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:01" (1/1) ... [2021-12-15 12:34:01,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:01" (1/1) ... [2021-12-15 12:34:01,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:34:01,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:34:01,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:34:01,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:34:01,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:01" (1/1) ... [2021-12-15 12:34:01,347 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:34:01,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:34:01,364 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 12:34:01,365 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 12:34:01,399 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-15 12:34:01,399 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-15 12:34:01,400 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2021-12-15 12:34:01,400 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2021-12-15 12:34:01,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 12:34:01,400 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_read_dr [2021-12-15 12:34:01,400 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_read_dr [2021-12-15 12:34:01,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-15 12:34:01,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-15 12:34:01,400 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_write_ar [2021-12-15 12:34:01,401 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_write_ar [2021-12-15 12:34:01,401 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-12-15 12:34:01,401 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-12-15 12:34:01,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:34:01,401 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-15 12:34:01,401 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-15 12:34:01,401 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_poll_out_ready [2021-12-15 12:34:01,401 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_poll_out_ready [2021-12-15 12:34:01,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:34:01,402 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_enable [2021-12-15 12:34:01,402 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_enable [2021-12-15 12:34:01,402 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-15 12:34:01,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-15 12:34:01,402 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_read_ar [2021-12-15 12:34:01,402 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_read_ar [2021-12-15 12:34:01,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:34:01,403 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-15 12:34:01,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-15 12:34:01,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:34:01,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:34:01,403 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_strobe_ck [2021-12-15 12:34:01,403 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_strobe_ck [2021-12-15 12:34:01,403 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-12-15 12:34:01,404 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-12-15 12:34:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_poll_in_busy [2021-12-15 12:34:01,404 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_poll_in_busy [2021-12-15 12:34:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-15 12:34:01,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-15 12:34:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:34:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-15 12:34:01,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-15 12:34:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:34:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:34:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-15 12:34:01,405 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-15 12:34:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_write_dr [2021-12-15 12:34:01,405 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_write_dr [2021-12-15 12:34:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:34:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_exit [2021-12-15 12:34:01,406 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_exit [2021-12-15 12:34:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:34:01,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:34:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_init [2021-12-15 12:34:01,406 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_init [2021-12-15 12:34:01,680 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:34:01,681 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:34:02,138 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 12:34:02,636 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-12-15 12:34:02,636 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-12-15 12:34:02,698 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:34:02,725 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:34:02,725 INFO L301 CfgBuilder]: Removed 19 assume(true) statements. [2021-12-15 12:34:02,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:34:02 BoogieIcfgContainer [2021-12-15 12:34:02,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:34:02,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:34:02,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:34:02,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:34:02,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:33:59" (1/3) ... [2021-12-15 12:34:02,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba89159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:34:02, skipping insertion in model container [2021-12-15 12:34:02,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:01" (2/3) ... [2021-12-15 12:34:02,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba89159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:34:02, skipping insertion in model container [2021-12-15 12:34:02,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:34:02" (3/3) ... [2021-12-15 12:34:02,735 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-misc-c2port-core.ko.cil.out.i [2021-12-15 12:34:02,752 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:34:02,752 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:34:02,827 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:34:02,833 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 12:34:02,833 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:34:02,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 391 states, 259 states have (on average 1.420849420849421) internal successors, (368), 265 states have internal predecessors, (368), 109 states have call successors, (109), 21 states have call predecessors, (109), 21 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2021-12-15 12:34:02,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-15 12:34:02,860 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:34:02,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 12:34:02,860 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:34:02,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:34:02,864 INFO L85 PathProgramCache]: Analyzing trace with hash 957716339, now seen corresponding path program 1 times [2021-12-15 12:34:02,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 12:34:02,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684220714] [2021-12-15 12:34:02,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:34:02,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 12:34:02,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 12:34:02,994 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction 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.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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 12:34:02,998 INFO L158 Benchmark]: Toolchain (without parser) took 3017.60ms. Allocated memory was 136.3MB in the beginning and 195.0MB in the end (delta: 58.7MB). Free memory was 95.2MB in the beginning and 95.8MB in the end (delta: -550.2kB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2021-12-15 12:34:02,999 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 77.6MB. Free memory was 37.6MB in the beginning and 37.6MB in the end (delta: 37.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:34:02,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1159.66ms. Allocated memory was 136.3MB in the beginning and 195.0MB in the end (delta: 58.7MB). Free memory was 95.2MB in the beginning and 133.4MB in the end (delta: -38.1MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2021-12-15 12:34:03,000 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.94ms. Allocated memory is still 195.0MB. Free memory was 133.4MB in the beginning and 126.0MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 12:34:03,001 INFO L158 Benchmark]: Boogie Preprocessor took 86.65ms. Allocated memory is still 195.0MB. Free memory was 126.0MB in the beginning and 118.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 12:34:03,001 INFO L158 Benchmark]: RCFGBuilder took 1387.63ms. Allocated memory is still 195.0MB. Free memory was 118.7MB in the beginning and 110.5MB in the end (delta: 8.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2021-12-15 12:34:03,004 INFO L158 Benchmark]: TraceAbstraction took 267.57ms. Allocated memory is still 195.0MB. Free memory was 110.5MB in the beginning and 95.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 12:34:03,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 77.6MB. Free memory was 37.6MB in the beginning and 37.6MB in the end (delta: 37.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1159.66ms. Allocated memory was 136.3MB in the beginning and 195.0MB in the end (delta: 58.7MB). Free memory was 95.2MB in the beginning and 133.4MB in the end (delta: -38.1MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.94ms. Allocated memory is still 195.0MB. Free memory was 133.4MB in the beginning and 126.0MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.65ms. Allocated memory is still 195.0MB. Free memory was 126.0MB in the beginning and 118.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1387.63ms. Allocated memory is still 195.0MB. Free memory was 118.7MB in the beginning and 110.5MB in the end (delta: 8.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 267.57ms. Allocated memory is still 195.0MB. Free memory was 110.5MB in the beginning and 95.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 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 12:34:03,065 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-linux-3.0/usb_urb-drivers-misc-c2port-core.ko.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 623160d4598cd0ad84c7dc43ec65a6f971cb966f22ee32963f1c0c6e1de756e1 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:34:05,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:34:05,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:34:05,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:34:05,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:34:05,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:34:05,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:34:05,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:34:05,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:34:05,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:34:05,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:34:05,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:34:05,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:34:05,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:34:05,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:34:05,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:34:05,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:34:05,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:34:05,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:34:05,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:34:05,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:34:05,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:34:05,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:34:05,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:34:05,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:34:05,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:34:05,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:34:05,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:34:05,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:34:05,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:34:05,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:34:05,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:34:05,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:34:05,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:34:05,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:34:05,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:34:05,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:34:05,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:34:05,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:34:05,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:34:05,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:34:05,449 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-15 12:34:05,464 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:34:05,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:34:05,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:34:05,464 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:34:05,465 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:34:05,465 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:34:05,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:34:05,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:34:05,466 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:34:05,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:34:05,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:34:05,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:34:05,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:34:05,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:34:05,467 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:34:05,467 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:34:05,467 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:34:05,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:34:05,468 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:34:05,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:34:05,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:34:05,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:34:05,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:34:05,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:34:05,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:34:05,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:34:05,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:34:05,469 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:34:05,469 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:34:05,469 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:34:05,469 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:34:05,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:34:05,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:34:05,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:34:05,470 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 623160d4598cd0ad84c7dc43ec65a6f971cb966f22ee32963f1c0c6e1de756e1 [2021-12-15 12:34:05,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:34:05,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:34:05,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:34:05,774 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:34:05,777 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:34:05,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-misc-c2port-core.ko.cil.out.i [2021-12-15 12:34:05,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea344ef93/3a7322ed33c64e5f9dc9fba9823a2bff/FLAG053ef3b2a [2021-12-15 12:34:06,348 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:34:06,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-misc-c2port-core.ko.cil.out.i [2021-12-15 12:34:06,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea344ef93/3a7322ed33c64e5f9dc9fba9823a2bff/FLAG053ef3b2a [2021-12-15 12:34:06,573 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea344ef93/3a7322ed33c64e5f9dc9fba9823a2bff [2021-12-15 12:34:06,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:34:06,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:34:06,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:34:06,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:34:06,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:34:06,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:34:06" (1/1) ... [2021-12-15 12:34:06,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38abc59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:06, skipping insertion in model container [2021-12-15 12:34:06,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:34:06" (1/1) ... [2021-12-15 12:34:06,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:34:06,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:34:07,322 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-3.0/usb_urb-drivers-misc-c2port-core.ko.cil.out.i[148506,148519] [2021-12-15 12:34:07,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:34:07,406 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 12:34:07,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:34:07,613 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-3.0/usb_urb-drivers-misc-c2port-core.ko.cil.out.i[148506,148519] [2021-12-15 12:34:07,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:34:07,651 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:34:07,837 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-3.0/usb_urb-drivers-misc-c2port-core.ko.cil.out.i[148506,148519] [2021-12-15 12:34:07,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:34:07,904 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:34:07,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:07 WrapperNode [2021-12-15 12:34:07,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:34:07,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:34:07,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:34:07,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:34:07,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:07" (1/1) ... [2021-12-15 12:34:07,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:07" (1/1) ... [2021-12-15 12:34:08,019 INFO L137 Inliner]: procedures = 111, calls = 815, calls flagged for inlining = 27, calls inlined = 10, statements flattened = 995 [2021-12-15 12:34:08,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:34:08,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:34:08,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:34:08,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:34:08,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:07" (1/1) ... [2021-12-15 12:34:08,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:07" (1/1) ... [2021-12-15 12:34:08,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:07" (1/1) ... [2021-12-15 12:34:08,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:07" (1/1) ... [2021-12-15 12:34:08,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:07" (1/1) ... [2021-12-15 12:34:08,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:07" (1/1) ... [2021-12-15 12:34:08,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:07" (1/1) ... [2021-12-15 12:34:08,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:34:08,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:34:08,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:34:08,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:34:08,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:07" (1/1) ... [2021-12-15 12:34:08,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:34:08,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:34:08,165 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 12:34:08,167 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 12:34:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-15 12:34:08,206 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-15 12:34:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-15 12:34:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2021-12-15 12:34:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2021-12-15 12:34:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 12:34:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-15 12:34:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_read_dr [2021-12-15 12:34:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_read_dr [2021-12-15 12:34:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-15 12:34:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-15 12:34:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-12-15 12:34:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-12-15 12:34:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_write_ar [2021-12-15 12:34:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_write_ar [2021-12-15 12:34:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-12-15 12:34:08,208 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-12-15 12:34:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-15 12:34:08,208 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-15 12:34:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_poll_out_ready [2021-12-15 12:34:08,208 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_poll_out_ready [2021-12-15 12:34:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:34:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_enable [2021-12-15 12:34:08,208 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_enable [2021-12-15 12:34:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_read_ar [2021-12-15 12:34:08,208 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_read_ar [2021-12-15 12:34:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:34:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-15 12:34:08,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-15 12:34:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:34:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:34:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-12-15 12:34:08,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-12-15 12:34:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_strobe_ck [2021-12-15 12:34:08,224 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_strobe_ck [2021-12-15 12:34:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-12-15 12:34:08,224 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-12-15 12:34:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_poll_in_busy [2021-12-15 12:34:08,224 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_poll_in_busy [2021-12-15 12:34:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:34:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-15 12:34:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-15 12:34:08,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-15 12:34:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:34:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:34:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:34:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 12:34:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-15 12:34:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-15 12:34:08,226 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-15 12:34:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_write_dr [2021-12-15 12:34:08,227 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_write_dr [2021-12-15 12:34:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_exit [2021-12-15 12:34:08,228 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_exit [2021-12-15 12:34:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:34:08,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:34:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_init [2021-12-15 12:34:08,228 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_init [2021-12-15 12:34:08,586 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:34:08,591 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:34:08,875 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 12:34:09,461 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-12-15 12:34:09,462 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-12-15 12:34:09,520 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:34:09,527 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:34:09,527 INFO L301 CfgBuilder]: Removed 19 assume(true) statements. [2021-12-15 12:34:09,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:34:09 BoogieIcfgContainer [2021-12-15 12:34:09,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:34:09,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:34:09,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:34:09,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:34:09,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:34:06" (1/3) ... [2021-12-15 12:34:09,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216811fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:34:09, skipping insertion in model container [2021-12-15 12:34:09,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:07" (2/3) ... [2021-12-15 12:34:09,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216811fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:34:09, skipping insertion in model container [2021-12-15 12:34:09,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:34:09" (3/3) ... [2021-12-15 12:34:09,536 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-misc-c2port-core.ko.cil.out.i [2021-12-15 12:34:09,540 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:34:09,540 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:34:09,575 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:34:09,579 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 12:34:09,580 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:34:09,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 391 states, 259 states have (on average 1.420849420849421) internal successors, (368), 265 states have internal predecessors, (368), 109 states have call successors, (109), 21 states have call predecessors, (109), 21 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2021-12-15 12:34:09,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-15 12:34:09,604 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:34:09,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 12:34:09,605 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:34:09,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:34:09,613 INFO L85 PathProgramCache]: Analyzing trace with hash 957716339, now seen corresponding path program 1 times [2021-12-15 12:34:09,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 12:34:09,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934713103] [2021-12-15 12:34:09,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:34:09,626 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 12:34:09,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 12:34:09,628 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 12:34:09,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 12:34:09,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 12:34:09,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 12:34:09,981 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction 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.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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 12:34:09,986 INFO L158 Benchmark]: Toolchain (without parser) took 3408.39ms. Allocated memory was 54.5MB in the beginning and 142.6MB in the end (delta: 88.1MB). Free memory was 30.7MB in the beginning and 93.5MB in the end (delta: -62.7MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2021-12-15 12:34:09,986 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 44.0MB. Free memory was 26.4MB in the beginning and 26.4MB in the end (delta: 53.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:34:09,987 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1326.48ms. Allocated memory was 54.5MB in the beginning and 142.6MB in the end (delta: 88.1MB). Free memory was 30.6MB in the beginning and 101.6MB in the end (delta: -71.0MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2021-12-15 12:34:09,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.60ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 94.6MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 12:34:09,987 INFO L158 Benchmark]: Boogie Preprocessor took 114.08ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 87.0MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 12:34:09,988 INFO L158 Benchmark]: RCFGBuilder took 1394.25ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 68.9MB in the end (delta: 18.1MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2021-12-15 12:34:09,988 INFO L158 Benchmark]: TraceAbstraction took 453.75ms. Allocated memory is still 142.6MB. Free memory was 68.0MB in the beginning and 93.5MB in the end (delta: -25.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-15 12:34:09,990 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 44.0MB. Free memory was 26.4MB in the beginning and 26.4MB in the end (delta: 53.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1326.48ms. Allocated memory was 54.5MB in the beginning and 142.6MB in the end (delta: 88.1MB). Free memory was 30.6MB in the beginning and 101.6MB in the end (delta: -71.0MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.60ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 94.6MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.08ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 87.0MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1394.25ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 68.9MB in the end (delta: 18.1MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * TraceAbstraction took 453.75ms. Allocated memory is still 142.6MB. Free memory was 68.0MB in the beginning and 93.5MB in the end (delta: -25.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 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 12:34:10,028 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