./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-video-arkfb.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-video-arkfb.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 90c46714cece55358cb643d9ae079249b826455eea6de8033737e0bcdd20e764 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:34:27,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:34:27,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:34:27,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:34:27,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:34:27,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:34:27,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:34:27,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:34:27,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:34:27,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:34:27,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:34:27,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:34:27,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:34:27,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:34:27,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:34:27,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:34:27,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:34:27,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:34:27,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:34:27,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:34:27,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:34:27,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:34:27,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:34:27,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:34:27,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:34:27,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:34:27,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:34:27,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:34:27,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:34:27,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:34:27,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:34:27,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:34:27,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:34:27,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:34:27,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:34:27,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:34:27,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:34:27,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:34:27,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:34:27,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:34:27,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:34:27,840 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-15 12:34:27,857 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:34:27,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:34:27,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:34:27,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:34:27,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:34:27,864 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:34:27,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:34:27,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:34:27,865 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:34:27,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:34:27,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:34:27,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:34:27,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:34:27,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:34:27,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:34:27,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:34:27,867 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:34:27,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:34:27,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:34:27,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:34:27,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:34:27,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:34:27,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:34:27,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:34:27,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:34:27,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:34:27,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:34:27,869 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:34:27,870 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:34:27,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:34:27,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:34:27,870 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90c46714cece55358cb643d9ae079249b826455eea6de8033737e0bcdd20e764 [2021-12-15 12:34:28,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:34:28,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:34:28,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:34:28,078 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:34:28,079 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:34:28,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-video-arkfb.ko.cil.out.i [2021-12-15 12:34:28,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43d1c329f/2cd5b48578fd4321a4deeeb5b195bd4f/FLAGedb8f64e7 [2021-12-15 12:34:28,683 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:34:28,683 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-video-arkfb.ko.cil.out.i [2021-12-15 12:34:28,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43d1c329f/2cd5b48578fd4321a4deeeb5b195bd4f/FLAGedb8f64e7 [2021-12-15 12:34:29,152 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43d1c329f/2cd5b48578fd4321a4deeeb5b195bd4f [2021-12-15 12:34:29,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:34:29,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:34:29,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:34:29,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:34:29,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:34:29,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:34:29" (1/1) ... [2021-12-15 12:34:29,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bbf11c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:29, skipping insertion in model container [2021-12-15 12:34:29,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:34:29" (1/1) ... [2021-12-15 12:34:29,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:34:29,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:34:30,164 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-video-arkfb.ko.cil.out.i[206366,206379] [2021-12-15 12:34:30,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:34:30,255 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:34:30,499 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-video-arkfb.ko.cil.out.i[206366,206379] [2021-12-15 12:34:30,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:34:30,611 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:34:30,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:30 WrapperNode [2021-12-15 12:34:30,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:34:30,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:34:30,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:34:30,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:34:30,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:30" (1/1) ... [2021-12-15 12:34:30,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:30" (1/1) ... [2021-12-15 12:34:30,759 INFO L137 Inliner]: procedures = 177, calls = 1612, calls flagged for inlining = 87, calls inlined = 87, statements flattened = 4005 [2021-12-15 12:34:30,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:34:30,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:34:30,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:34:30,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:34:30,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:30" (1/1) ... [2021-12-15 12:34:30,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:30" (1/1) ... [2021-12-15 12:34:30,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:30" (1/1) ... [2021-12-15 12:34:30,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:30" (1/1) ... [2021-12-15 12:34:30,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:30" (1/1) ... [2021-12-15 12:34:30,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:30" (1/1) ... [2021-12-15 12:34:30,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:30" (1/1) ... [2021-12-15 12:34:30,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:34:30,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:34:30,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:34:30,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:34:30,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:30" (1/1) ... [2021-12-15 12:34:30,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:34:30,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:34:30,978 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 12:34:31,039 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 12:34:31,065 INFO L130 BoogieDeclarations]: Found specification of procedure arkfb_release [2021-12-15 12:34:31,065 INFO L138 BoogieDeclarations]: Found implementation of procedure arkfb_release [2021-12-15 12:34:31,065 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-15 12:34:31,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-15 12:34:31,065 INFO L130 BoogieDeclarations]: Found specification of procedure svga_wcrt_mask [2021-12-15 12:34:31,066 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_wcrt_mask [2021-12-15 12:34:31,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-15 12:34:31,066 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_suspend [2021-12-15 12:34:31,066 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_suspend [2021-12-15 12:34:31,066 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-15 12:34:31,066 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-15 12:34:31,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 12:34:31,066 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_imageblit [2021-12-15 12:34:31,067 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_imageblit [2021-12-15 12:34:31,067 INFO L130 BoogieDeclarations]: Found specification of procedure ics5342_set_freq [2021-12-15 12:34:31,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ics5342_set_freq [2021-12-15 12:34:31,067 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2021-12-15 12:34:31,067 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2021-12-15 12:34:31,067 INFO L130 BoogieDeclarations]: Found specification of procedure arkfb_set_par [2021-12-15 12:34:31,067 INFO L138 BoogieDeclarations]: Found implementation of procedure arkfb_set_par [2021-12-15 12:34:31,067 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_fillrect [2021-12-15 12:34:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_fillrect [2021-12-15 12:34:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-15 12:34:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-15 12:34:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-12-15 12:34:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-12-15 12:34:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure ark_pci_remove [2021-12-15 12:34:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ark_pci_remove [2021-12-15 12:34:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-15 12:34:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-15 12:34:31,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:34:31,069 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-15 12:34:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-15 12:34:31,069 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-12-15 12:34:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-12-15 12:34:31,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-15 12:34:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-15 12:34:31,069 INFO L130 BoogieDeclarations]: Found specification of procedure vga_w [2021-12-15 12:34:31,070 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_w [2021-12-15 12:34:31,070 INFO L130 BoogieDeclarations]: Found specification of procedure vga_r [2021-12-15 12:34:31,070 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_r [2021-12-15 12:34:31,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:34:31,070 INFO L130 BoogieDeclarations]: Found specification of procedure svga_wseq_mask [2021-12-15 12:34:31,070 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_wseq_mask [2021-12-15 12:34:31,071 INFO L130 BoogieDeclarations]: Found specification of procedure vga_wcrt [2021-12-15 12:34:31,071 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_wcrt [2021-12-15 12:34:31,071 INFO L130 BoogieDeclarations]: Found specification of procedure dac_release [2021-12-15 12:34:31,071 INFO L138 BoogieDeclarations]: Found implementation of procedure dac_release [2021-12-15 12:34:31,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:34:31,071 INFO L130 BoogieDeclarations]: Found specification of procedure arkfb_open [2021-12-15 12:34:31,072 INFO L138 BoogieDeclarations]: Found implementation of procedure arkfb_open [2021-12-15 12:34:31,072 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-15 12:34:31,072 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-15 12:34:31,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:34:31,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:34:31,072 INFO L130 BoogieDeclarations]: Found specification of procedure arkfb_cleanup [2021-12-15 12:34:31,073 INFO L138 BoogieDeclarations]: Found implementation of procedure arkfb_cleanup [2021-12-15 12:34:31,073 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 12:34:31,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 12:34:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2021-12-15 12:34:31,074 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2021-12-15 12:34:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:34:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-15 12:34:31,075 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-15 12:34:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2021-12-15 12:34:31,075 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2021-12-15 12:34:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure ics5342_release [2021-12-15 12:34:31,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ics5342_release [2021-12-15 12:34:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure expand_color [2021-12-15 12:34:31,075 INFO L138 BoogieDeclarations]: Found implementation of procedure expand_color [2021-12-15 12:34:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2021-12-15 12:34:31,075 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2021-12-15 12:34:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-15 12:34:31,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-15 12:34:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:34:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:34:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2021-12-15 12:34:31,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2021-12-15 12:34:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-15 12:34:31,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-15 12:34:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-15 12:34:31,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-15 12:34:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure ics5342_set_mode [2021-12-15 12:34:31,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ics5342_set_mode [2021-12-15 12:34:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure __writeb [2021-12-15 12:34:31,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __writeb [2021-12-15 12:34:31,078 INFO L130 BoogieDeclarations]: Found specification of procedure dac_set_mode [2021-12-15 12:34:31,078 INFO L138 BoogieDeclarations]: Found implementation of procedure dac_set_mode [2021-12-15 12:34:31,078 INFO L130 BoogieDeclarations]: Found specification of procedure vga_w_fast [2021-12-15 12:34:31,078 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_w_fast [2021-12-15 12:34:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure arkfb_init [2021-12-15 12:34:31,079 INFO L138 BoogieDeclarations]: Found implementation of procedure arkfb_init [2021-12-15 12:34:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure vga_rseq [2021-12-15 12:34:31,079 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_rseq [2021-12-15 12:34:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-15 12:34:31,080 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-15 12:34:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-15 12:34:31,080 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-15 12:34:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:34:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure vga_wseq [2021-12-15 12:34:31,081 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_wseq [2021-12-15 12:34:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:34:31,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:34:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure svga_match_format [2021-12-15 12:34:31,081 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_match_format [2021-12-15 12:34:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure svga_wcrt_multi [2021-12-15 12:34:31,081 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_wcrt_multi [2021-12-15 12:34:31,511 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:34:31,514 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:34:31,843 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 12:34:32,186 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2021-12-15 12:34:32,186 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2021-12-15 12:34:32,351 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 12:34:32,353 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 12:34:33,673 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume !false; [2021-12-15 12:34:33,673 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##48: assume false; [2021-12-15 12:34:33,674 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##104: assume !false; [2021-12-15 12:34:33,674 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##103: assume false; [2021-12-15 12:34:33,695 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:34:33,717 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:34:33,718 INFO L301 CfgBuilder]: Removed 29 assume(true) statements. [2021-12-15 12:34:33,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:34:33 BoogieIcfgContainer [2021-12-15 12:34:33,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:34:33,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:34:33,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:34:33,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:34:33,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:34:29" (1/3) ... [2021-12-15 12:34:33,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aff08cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:34:33, skipping insertion in model container [2021-12-15 12:34:33,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:30" (2/3) ... [2021-12-15 12:34:33,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aff08cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:34:33, skipping insertion in model container [2021-12-15 12:34:33,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:34:33" (3/3) ... [2021-12-15 12:34:33,739 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-video-arkfb.ko.cil.out.i [2021-12-15 12:34:33,743 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:34:33,743 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:34:33,789 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:34:33,793 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 12:34:33,794 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:34:33,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 812 states, 586 states have (on average 1.3515358361774743) internal successors, (792), 608 states have internal predecessors, (792), 177 states have call successors, (177), 47 states have call predecessors, (177), 47 states have return successors, (177), 167 states have call predecessors, (177), 177 states have call successors, (177) [2021-12-15 12:34:33,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-15 12:34:33,832 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:34:33,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 12:34:33,833 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:34:33,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:34:33,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1885709916, now seen corresponding path program 1 times [2021-12-15 12:34:33,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 12:34:33,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700071137] [2021-12-15 12:34:33,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:34:33,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 12:34:33,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 12:34:33,943 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 12:34:33,948 INFO L158 Benchmark]: Toolchain (without parser) took 4791.72ms. Allocated memory was 157.3MB in the beginning and 291.5MB in the end (delta: 134.2MB). Free memory was 117.9MB in the beginning and 84.2MB in the end (delta: 33.7MB). Peak memory consumption was 166.6MB. Max. memory is 16.1GB. [2021-12-15 12:34:33,948 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory is still 42.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:34:33,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1455.33ms. Allocated memory is still 157.3MB. Free memory was 117.9MB in the beginning and 103.6MB in the end (delta: 14.2MB). Peak memory consumption was 88.8MB. Max. memory is 16.1GB. [2021-12-15 12:34:33,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 145.63ms. Allocated memory is still 157.3MB. Free memory was 103.6MB in the beginning and 80.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-15 12:34:33,949 INFO L158 Benchmark]: Boogie Preprocessor took 189.36ms. Allocated memory is still 157.3MB. Free memory was 80.6MB in the beginning and 58.4MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-15 12:34:33,950 INFO L158 Benchmark]: RCFGBuilder took 2771.51ms. Allocated memory was 157.3MB in the beginning and 291.5MB in the end (delta: 134.2MB). Free memory was 58.4MB in the beginning and 107.3MB in the end (delta: -48.9MB). Peak memory consumption was 120.1MB. Max. memory is 16.1GB. [2021-12-15 12:34:33,950 INFO L158 Benchmark]: TraceAbstraction took 222.37ms. Allocated memory is still 291.5MB. Free memory was 107.3MB in the beginning and 84.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-15 12:34:33,952 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory is still 42.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1455.33ms. Allocated memory is still 157.3MB. Free memory was 117.9MB in the beginning and 103.6MB in the end (delta: 14.2MB). Peak memory consumption was 88.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 145.63ms. Allocated memory is still 157.3MB. Free memory was 103.6MB in the beginning and 80.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 189.36ms. Allocated memory is still 157.3MB. Free memory was 80.6MB in the beginning and 58.4MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2771.51ms. Allocated memory was 157.3MB in the beginning and 291.5MB in the end (delta: 134.2MB). Free memory was 58.4MB in the beginning and 107.3MB in the end (delta: -48.9MB). Peak memory consumption was 120.1MB. Max. memory is 16.1GB. * TraceAbstraction took 222.37ms. Allocated memory is still 291.5MB. Free memory was 107.3MB in the beginning and 84.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. 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 12:34:33,982 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-video-arkfb.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 90c46714cece55358cb643d9ae079249b826455eea6de8033737e0bcdd20e764 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:34:35,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:34:35,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:34:35,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:34:35,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:34:35,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:34:35,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:34:35,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:34:35,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:34:35,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:34:35,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:34:35,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:34:35,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:34:35,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:34:35,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:34:35,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:34:35,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:34:35,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:34:35,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:34:35,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:34:35,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:34:35,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:34:35,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:34:35,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:34:35,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:34:35,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:34:35,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:34:35,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:34:35,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:34:35,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:34:35,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:34:35,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:34:35,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:34:35,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:34:35,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:34:35,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:34:35,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:34:35,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:34:35,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:34:35,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:34:35,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:34:35,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-15 12:34:35,670 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:34:35,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:34:35,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:34:35,671 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:34:35,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:34:35,672 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:34:35,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:34:35,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:34:35,673 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:34:35,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:34:35,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:34:35,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:34:35,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:34:35,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:34:35,674 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:34:35,675 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:34:35,675 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:34:35,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:34:35,675 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:34:35,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:34:35,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:34:35,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:34:35,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:34:35,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:34:35,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:34:35,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:34:35,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:34:35,676 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:34:35,676 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:34:35,677 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:34:35,677 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:34:35,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:34:35,677 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:34:35,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:34:35,677 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90c46714cece55358cb643d9ae079249b826455eea6de8033737e0bcdd20e764 [2021-12-15 12:34:35,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:34:35,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:34:35,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:34:35,962 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:34:35,962 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:34:35,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-video-arkfb.ko.cil.out.i [2021-12-15 12:34:36,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/938139ded/27cf422c55884358bc062a0d8a2c70f9/FLAGb5e9a006e [2021-12-15 12:34:36,649 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:34:36,649 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-video-arkfb.ko.cil.out.i [2021-12-15 12:34:36,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/938139ded/27cf422c55884358bc062a0d8a2c70f9/FLAGb5e9a006e [2021-12-15 12:34:36,841 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/938139ded/27cf422c55884358bc062a0d8a2c70f9 [2021-12-15 12:34:36,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:34:36,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:34:36,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:34:36,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:34:36,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:34:36,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:34:36" (1/1) ... [2021-12-15 12:34:36,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a79f89e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:36, skipping insertion in model container [2021-12-15 12:34:36,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:34:36" (1/1) ... [2021-12-15 12:34:36,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:34:36,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:34:37,893 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-video-arkfb.ko.cil.out.i[206366,206379] [2021-12-15 12:34:37,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:34:37,982 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 12:34:38,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:34:38,204 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-video-arkfb.ko.cil.out.i[206366,206379] [2021-12-15 12:34:38,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:34:38,242 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:34:38,430 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-video-arkfb.ko.cil.out.i[206366,206379] [2021-12-15 12:34:38,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:34:38,567 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:34:38,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:38 WrapperNode [2021-12-15 12:34:38,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:34:38,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:34:38,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:34:38,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:34:38,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:38" (1/1) ... [2021-12-15 12:34:38,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:38" (1/1) ... [2021-12-15 12:34:38,751 INFO L137 Inliner]: procedures = 189, calls = 1612, calls flagged for inlining = 87, calls inlined = 87, statements flattened = 3935 [2021-12-15 12:34:38,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:34:38,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:34:38,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:34:38,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:34:38,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:38" (1/1) ... [2021-12-15 12:34:38,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:38" (1/1) ... [2021-12-15 12:34:38,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:38" (1/1) ... [2021-12-15 12:34:38,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:38" (1/1) ... [2021-12-15 12:34:38,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:38" (1/1) ... [2021-12-15 12:34:38,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:38" (1/1) ... [2021-12-15 12:34:38,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:38" (1/1) ... [2021-12-15 12:34:38,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:34:38,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:34:38,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:34:38,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:34:38,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:38" (1/1) ... [2021-12-15 12:34:38,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:34:38,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:34:38,928 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 12:34:38,979 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 12:34:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure arkfb_release [2021-12-15 12:34:38,994 INFO L138 BoogieDeclarations]: Found implementation of procedure arkfb_release [2021-12-15 12:34:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-15 12:34:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure svga_wcrt_mask [2021-12-15 12:34:38,995 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_wcrt_mask [2021-12-15 12:34:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_suspend [2021-12-15 12:34:38,995 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_suspend [2021-12-15 12:34:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-15 12:34:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 12:34:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-15 12:34:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-15 12:34:38,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-15 12:34:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_imageblit [2021-12-15 12:34:38,996 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_imageblit [2021-12-15 12:34:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure ics5342_set_freq [2021-12-15 12:34:38,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ics5342_set_freq [2021-12-15 12:34:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2021-12-15 12:34:38,996 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2021-12-15 12:34:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure arkfb_set_par [2021-12-15 12:34:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure arkfb_set_par [2021-12-15 12:34:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_fillrect [2021-12-15 12:34:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_fillrect [2021-12-15 12:34:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-15 12:34:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-15 12:34:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-12-15 12:34:38,998 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-12-15 12:34:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure ark_pci_remove [2021-12-15 12:34:38,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ark_pci_remove [2021-12-15 12:34:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-15 12:34:38,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-15 12:34:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-12-15 12:34:38,999 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-12-15 12:34:38,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-15 12:34:38,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~VOID [2021-12-15 12:34:38,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~VOID [2021-12-15 12:34:38,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-15 12:34:38,999 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-15 12:34:39,000 INFO L130 BoogieDeclarations]: Found specification of procedure vga_w [2021-12-15 12:34:39,000 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_w [2021-12-15 12:34:39,000 INFO L130 BoogieDeclarations]: Found specification of procedure vga_r [2021-12-15 12:34:39,000 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_r [2021-12-15 12:34:39,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:34:39,000 INFO L130 BoogieDeclarations]: Found specification of procedure svga_wseq_mask [2021-12-15 12:34:39,001 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_wseq_mask [2021-12-15 12:34:39,001 INFO L130 BoogieDeclarations]: Found specification of procedure vga_wcrt [2021-12-15 12:34:39,001 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_wcrt [2021-12-15 12:34:39,001 INFO L130 BoogieDeclarations]: Found specification of procedure dac_release [2021-12-15 12:34:39,001 INFO L138 BoogieDeclarations]: Found implementation of procedure dac_release [2021-12-15 12:34:39,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:34:39,002 INFO L130 BoogieDeclarations]: Found specification of procedure arkfb_open [2021-12-15 12:34:39,002 INFO L138 BoogieDeclarations]: Found implementation of procedure arkfb_open [2021-12-15 12:34:39,002 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-15 12:34:39,003 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-15 12:34:39,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:34:39,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:34:39,004 INFO L130 BoogieDeclarations]: Found specification of procedure arkfb_cleanup [2021-12-15 12:34:39,004 INFO L138 BoogieDeclarations]: Found implementation of procedure arkfb_cleanup [2021-12-15 12:34:39,004 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 12:34:39,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 12:34:39,004 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2021-12-15 12:34:39,004 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2021-12-15 12:34:39,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:34:39,005 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-15 12:34:39,005 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-15 12:34:39,005 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2021-12-15 12:34:39,005 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2021-12-15 12:34:39,005 INFO L130 BoogieDeclarations]: Found specification of procedure ics5342_release [2021-12-15 12:34:39,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ics5342_release [2021-12-15 12:34:39,006 INFO L130 BoogieDeclarations]: Found specification of procedure expand_color [2021-12-15 12:34:39,006 INFO L138 BoogieDeclarations]: Found implementation of procedure expand_color [2021-12-15 12:34:39,006 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2021-12-15 12:34:39,006 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2021-12-15 12:34:39,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-15 12:34:39,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-15 12:34:39,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-15 12:34:39,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-15 12:34:39,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-15 12:34:39,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 12:34:39,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:34:39,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:34:39,007 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2021-12-15 12:34:39,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2021-12-15 12:34:39,008 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-15 12:34:39,008 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-15 12:34:39,008 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-15 12:34:39,008 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-15 12:34:39,009 INFO L130 BoogieDeclarations]: Found specification of procedure ics5342_set_mode [2021-12-15 12:34:39,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ics5342_set_mode [2021-12-15 12:34:39,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-15 12:34:39,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:34:39,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 12:34:39,010 INFO L130 BoogieDeclarations]: Found specification of procedure __writeb [2021-12-15 12:34:39,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __writeb [2021-12-15 12:34:39,010 INFO L130 BoogieDeclarations]: Found specification of procedure dac_set_mode [2021-12-15 12:34:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dac_set_mode [2021-12-15 12:34:39,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-15 12:34:39,011 INFO L130 BoogieDeclarations]: Found specification of procedure vga_w_fast [2021-12-15 12:34:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_w_fast [2021-12-15 12:34:39,011 INFO L130 BoogieDeclarations]: Found specification of procedure arkfb_init [2021-12-15 12:34:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure arkfb_init [2021-12-15 12:34:39,011 INFO L130 BoogieDeclarations]: Found specification of procedure vga_rseq [2021-12-15 12:34:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_rseq [2021-12-15 12:34:39,011 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-15 12:34:39,012 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-15 12:34:39,012 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-15 12:34:39,012 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-15 12:34:39,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-12-15 12:34:39,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-12-15 12:34:39,012 INFO L130 BoogieDeclarations]: Found specification of procedure vga_wseq [2021-12-15 12:34:39,013 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_wseq [2021-12-15 12:34:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:34:39,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:34:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure svga_match_format [2021-12-15 12:34:39,015 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_match_format [2021-12-15 12:34:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure svga_wcrt_multi [2021-12-15 12:34:39,015 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_wcrt_multi [2021-12-15 12:34:39,462 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:34:39,464 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:34:41,411 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 12:34:46,460 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2021-12-15 12:34:46,460 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2021-12-15 12:34:46,968 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 12:34:46,970 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 12:34:54,969 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume !false; [2021-12-15 12:34:54,969 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##48: assume false; [2021-12-15 12:34:54,970 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##104: assume !false; [2021-12-15 12:34:54,970 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##103: assume false; [2021-12-15 12:34:55,019 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:34:55,027 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:34:55,028 INFO L301 CfgBuilder]: Removed 29 assume(true) statements. [2021-12-15 12:34:55,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:34:55 BoogieIcfgContainer [2021-12-15 12:34:55,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:34:55,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:34:55,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:34:55,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:34:55,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:34:36" (1/3) ... [2021-12-15 12:34:55,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4855d0bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:34:55, skipping insertion in model container [2021-12-15 12:34:55,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:34:38" (2/3) ... [2021-12-15 12:34:55,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4855d0bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:34:55, skipping insertion in model container [2021-12-15 12:34:55,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:34:55" (3/3) ... [2021-12-15 12:34:55,036 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-video-arkfb.ko.cil.out.i [2021-12-15 12:34:55,039 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:34:55,039 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:34:55,078 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:34:55,082 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 12:34:55,083 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:34:55,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 812 states, 586 states have (on average 1.3515358361774743) internal successors, (792), 608 states have internal predecessors, (792), 177 states have call successors, (177), 47 states have call predecessors, (177), 47 states have return successors, (177), 167 states have call predecessors, (177), 177 states have call successors, (177) [2021-12-15 12:34:55,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-15 12:34:55,113 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:34:55,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 12:34:55,114 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:34:55,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:34:55,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1164526840, now seen corresponding path program 1 times [2021-12-15 12:34:55,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 12:34:55,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125453186] [2021-12-15 12:34:55,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:34:55,132 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 12:34:55,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 12:34:55,134 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 12:34:55,145 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 12:34:55,419 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 12:34:55,615 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 12:34:55,616 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 12:34:55,620 INFO L158 Benchmark]: Toolchain (without parser) took 18774.07ms. Allocated memory was 52.4MB in the beginning and 348.1MB in the end (delta: 295.7MB). Free memory was 31.2MB in the beginning and 105.8MB in the end (delta: -74.6MB). Peak memory consumption was 220.7MB. Max. memory is 16.1GB. [2021-12-15 12:34:55,620 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 52.4MB. Free memory was 34.8MB in the beginning and 34.8MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:34:55,621 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1720.92ms. Allocated memory was 52.4MB in the beginning and 132.1MB in the end (delta: 79.7MB). Free memory was 31.0MB in the beginning and 60.8MB in the end (delta: -29.8MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. [2021-12-15 12:34:55,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 183.11ms. Allocated memory is still 132.1MB. Free memory was 60.8MB in the beginning and 66.7MB in the end (delta: -5.9MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-12-15 12:34:55,621 INFO L158 Benchmark]: Boogie Preprocessor took 151.14ms. Allocated memory is still 132.1MB. Free memory was 66.7MB in the beginning and 43.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-15 12:34:55,622 INFO L158 Benchmark]: RCFGBuilder took 16126.17ms. Allocated memory was 132.1MB in the beginning and 348.1MB in the end (delta: 216.0MB). Free memory was 42.9MB in the beginning and 142.5MB in the end (delta: -99.6MB). Peak memory consumption was 191.6MB. Max. memory is 16.1GB. [2021-12-15 12:34:55,622 INFO L158 Benchmark]: TraceAbstraction took 586.96ms. Allocated memory is still 348.1MB. Free memory was 142.5MB in the beginning and 105.8MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2021-12-15 12:34:55,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 52.4MB. Free memory was 34.8MB in the beginning and 34.8MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1720.92ms. Allocated memory was 52.4MB in the beginning and 132.1MB in the end (delta: 79.7MB). Free memory was 31.0MB in the beginning and 60.8MB in the end (delta: -29.8MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 183.11ms. Allocated memory is still 132.1MB. Free memory was 60.8MB in the beginning and 66.7MB in the end (delta: -5.9MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 151.14ms. Allocated memory is still 132.1MB. Free memory was 66.7MB in the beginning and 43.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * RCFGBuilder took 16126.17ms. Allocated memory was 132.1MB in the beginning and 348.1MB in the end (delta: 216.0MB). Free memory was 42.9MB in the beginning and 142.5MB in the end (delta: -99.6MB). Peak memory consumption was 191.6MB. Max. memory is 16.1GB. * TraceAbstraction took 586.96ms. Allocated memory is still 348.1MB. Free memory was 142.5MB in the beginning and 105.8MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. 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 12:34:55,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable